阅读说明：本技术 婴儿推车配件和双人婴儿推车总成 (Baby stroller accessory and double-person baby stroller assembly ) 是由 J-M·乔杜尔格 于 2020-01-14 设计创作，主要内容包括：本申请提供婴儿推车配件和双人婴儿推车总成。婴儿推车配件(200)可连接到婴儿推车以共同形成双人婴儿推车,并且当配件与婴儿推车脱离连接时不能用于运送儿童,婴儿推车配件包括车架(210)；用于将配件可逆地连接至婴儿推车同时限定倾斜轴(Y250)的连接机构(250),婴儿推车配件车架的前部和婴儿推车车架的后部绕倾斜轴相对于彼此自由倾斜；两个车轮(230G,230D),耦接至车架的后部以枢转；由车架的后部承载的推动部件(240)；用于控制双人婴儿推车的滚动阻止的控制机构(270),其由车架的前部承载且当配件通过连接机构连接至婴儿推车时,适于与集成在婴儿推车中的滚动阻止系统机械配合,以控制滚动阻止系统；以及致动部件(280),其由车架的后部承载以能够由站在双人婴儿推车后的使用者致动,并耦接至控制机构以致动控制机构。(The present application provides stroller accessories and a two-person stroller assembly. A stroller accessory (200) connectable to a stroller to collectively form a double stroller and not usable for transporting a child when the accessory is disconnected from the stroller, the stroller accessory comprising a frame (210); a connection mechanism (250) for reversibly connecting the accessory to the stroller while defining a tilt axis (Y250) about which the front portion of the stroller accessory frame and the rear portion of the stroller frame are free to tilt relative to each other; two wheels (230G, 230D) coupled to a rear portion of the frame to pivot; a push member (240) carried by the rear portion of the frame; a control mechanism (270) for controlling the roll prevention of the double stroller, carried by the front portion of the frame and adapted to mechanically cooperate with a roll prevention system integrated in the stroller to control the roll prevention system when the accessory is connected to the stroller by the connection mechanism; and an actuation member (280) carried by a rear portion of the frame to be actuatable by a user standing behind the double stroller and coupled to the control mechanism to actuate the control mechanism.)

1. A stroller accessory (200) connectable to a stroller (100) to collectively form a double stroller (1), the stroller accessory (200) being unusable for transporting a child when the stroller accessory is disconnected from the stroller,

wherein the stroller accessory (200) comprises:

a carriage (210) carrying, during use, a containing part (220) able to house a child to be transported;

a connection mechanism (250) for reversibly connecting the stroller accessory (200) to the stroller (100), to form said double stroller (1), said connection mechanism being carried by a front portion (211) of a frame (210) of said stroller accessory, and adapted to removably secure the front portion of the frame of the stroller accessory to a rear portion (112) of a frame (110) of the stroller, to arrange the stroller accessory at the rear of the stroller in a fore-and-aft direction and define a tilt axis (Y250), said tilting axis (Y250) extending substantially parallel to the ground and substantially perpendicular to said fore-aft direction during use, and a front portion of the frame of the stroller accessory and the rear portion of the frame of the stroller are free to tilt relative to each other about the tilt axis (Y250);

two wheels (230G, 230D), the two wheels (230G, 230D) being carried and rolling on the ground when the stroller accessory (200) is connected to the stroller (100) by the connection mechanism (250), and the two wheels (230G, 230D) being coupled to a rear portion (212) of the frame (210) of the stroller accessory to pivot about respective pivot axes (Z230G, Z230D);

a pushing member (240) carried by the rear portion (212) of the frame (210) of the stroller accessory (200) and adapted to be manually forced by a user standing behind the twin stroller (1);

-a control mechanism (270) for controlling the rolling prevention of the double stroller (1), said control mechanism being carried by the front portion (211) of the frame (210) of the stroller accessory (200) and adapted to mechanically cooperate with a rolling prevention system (160) integrated in the stroller to control said rolling prevention system when the stroller accessory is connected to the stroller (100) by the connection mechanism (250); and

an actuation member (280) carried by the rear portion (212) of the frame (210) of the stroller accessory (200) to be actuatable by a user standing behind the stroller (1), and the actuation member (280) being coupled to the control mechanism (270) to actuate the control mechanism.

2. The stroller accessory of claim 1, wherein the stroller accessory (200) further comprises a blocking mechanism (300) for blocking the wheels (230G, 230D) of the stroller accessory, the blocking mechanism being carried by the rear portion (212) of the frame (210) of the stroller accessory and adapted to reversibly interfere with at least one or each of the two wheels of the stroller accessory to prevent rolling thereof regardless of the orientation of the wheels of the stroller accessory about pivot axes (Z230G, Z230D) of the wheels of the stroller accessory, and

wherein the actuation member (280) is coupled to the blocking mechanism (300) to actuate the blocking mechanism simultaneously with the control mechanism (270).

3. The stroller accessory of claim 2, wherein for at least one of the two wheels (230G, 230D) of the stroller accessory (200) or for each of the two wheels of the stroller accessory, the blocking mechanism (300) comprises a blocking element (301D), the blocking element (301D) being substantially centered on the pivot axis (Z230D) of the wheel (230D) of the stroller accessory and movable along the pivot axis of the wheel of the stroller accessory relative to the frame (210) of the stroller accessory between:

a disengaged position in which the blocking element is disengaged from the wheel of the stroller accessory to enable the wheel of the stroller accessory to roll freely; and

an engaged position in which the blocking element interferes with a tread (231D) of the wheel of the stroller assembly to prevent rolling of the wheel of the stroller assembly.

4. The stroller accessory of claim 3, wherein each of the two wheels (230G, 230D) of the stroller accessory (200) is associated with a retainer (310G, 310D), wherein:

the holder (310G, 310D) being mounted on the rear portion (212) of the frame (210) so as to pivot about the pivot axis (Z230G, Z230D) of the wheel of the stroller accessory;

the wheels of the stroller accessory being mounted on the holder (310G, 310D) and rotating about themselves to roll; and

the holder (310G, 310D) guides the respective blocking element (301D) in translation along the pivot axis of the wheel of the stroller accessory.

5. The stroller accessory of claim 3, wherein the blocking mechanism (300) further comprises:

for the spring (305D) of the or each blocking element (301D), pushing the blocking element back to the disengaged position, an

An actuator (306) connected in movement to the actuation member (280), and during co-actuation of the blocking mechanism (300) and the control mechanism (270) by the actuation member (280), the actuator (306) drives the blocking element from the disengaged position to the engaged position while counteracting the action of the spring.

6. A stroller accessory according to claim 5, wherein the or each blocking element (301D) comprises a first end (303D) and a second end (302D), the first end (303D) and the second end (302D) being opposite each other along a pivot axis (Z230D) of the respective wheel (230D) of the stroller accessory (200);

wherein the first end (303D) of the or each blocking element (301D) has a first bearing surface (304D), which first bearing surface (304D) presses against a tread (231D) of a respective wheel (230D) of the stroller fitting (200) along the pivot axis (Z230D) of the respective wheel when the blocking element is in the engaged position,

and wherein the second end (302D) of the or each arresting element (301D) has a second bearing surface (308D), which second bearing surface (308D) presses against a dedicated surface (307D) of the actuator (306) along the pivot axis (Z230D) of the respective wheel (230D) of the stroller fitting (200) under the action of a respective spring (305D).

7. The stroller accessory of claim 5, wherein the actuator (306) is rotatable relative to the frame (210) of the stroller accessory (200) about an actuation axis (Y306), the actuation axis (Y306) extending substantially perpendicular to respective pivot axes (Z230G, Z230D) of the wheels (230G, 230D) of the stroller accessory (200).

8. The stroller accessory of claim 7, wherein the rear portion (212) of the frame (210) of the stroller accessory (200) comprises a cross-member (213), wherein:

the cross member (213) extends between the two wheels (230G, 230D) of the stroller fitting;

inside the cross beam (213), the actuator (306) is mounted and guided in rotation about the actuation axis (Y306); and

on the cross beam (213), a pedal (281) of the actuation member (280) is mounted inclined about the actuation axis (Y306) while being fixed to the actuator (306).

9. The stroller accessory of claim 1, wherein the control mechanism (270) comprises a support (271) that:

-the front portion (211) of the frame (210) coupled to the stroller accessory (200) to tilt freely about the tilt axis (Y250); and

is configured to partially enclose the rear portion (112) of the frame (110) of the stroller when the stroller accessory (200) is connected to the stroller (100) by the connection mechanism (250) to rotationally connect to the rear portion of the frame of the stroller about the tilt axis;

and wherein the control mechanism (270) further comprises a coupling member (272) that:

is movably carried by the support (271) of the control mechanism;

is coupled to the actuating member (280) such that the actuating member drives the movement of the coupling member, an

Is adapted to engage the roll inhibiting system (160) of the stroller when the stroller accessory (200) is connected to the stroller (100) by the connection mechanism (250).

10. A stroller accessory according to claim 9, wherein the coupling member (272) is adapted to connect itself in movement to an actuating portion (161) belonging to the rolling prevention system (160) of the stroller when the stroller accessory (200) is connected to the stroller (100) by the connection mechanism (250), and the actuating portion is arranged to be directly activated by a user standing behind the stroller when the stroller accessory is disconnected from the stroller.

11. The stroller accessory of claim 10, wherein the coupling member (272) comprises a yoke (275) adapted to connect itself in motion to the pedal (162) of the actuator (161) while covering the pedal.

12. The stroller accessory of claim 9, wherein the support (271) of the control mechanism (270) comprises a left branch (273G) and a right branch (273D), and a rod (274) fixedly coupling the left and right branches to each other, and

wherein, when the stroller accessory (200) is connected to the stroller (100) by the connection mechanism (250), the left and right branches (273G, 273D) are rotationally coupled to a rear portion (112) of a frame (110) of the stroller (100) about the tilt axis (Y250), while the left and right branches (273G, 273D) are configured to partially enclose left and right posts (114G, 114D), respectively, of the rear portion of the frame of the stroller.

13. The stroller accessory of claim 9, wherein the connection mechanism (250) comprises a carrier (251), wherein:

the bearing part (251) supports and guides the movement of the rest part of the connecting mechanism;

the support (271) of the control mechanism (270) is mounted on the carrier (251) to tilt about the tilt axis (Y250); and

the carrier (251) is integrated into a footrest (260) carried by the front portion (211) of the frame (210) of the stroller accessory (200).

14. The stroller accessory of claim 9, wherein the stroller accessory (200) further comprises a mechanical transmission system (290), the mechanical transmission system (290) being carried by the frame (210) of the stroller accessory while extending between the front portion (211) and the rear portion (212) of the frame of the stroller accessory, and the mechanical transmission system (290) mechanically couples the actuation member (280) and the control mechanism (270) such that the actuation member actuates the control mechanism, and

wherein the mechanical transmission system (290) comprises a cable (291) coupling the actuation member (280) and the coupling member (272) to each other such that the actuation member drives the movement of the coupling member.

15. The stroller accessory of claim 1, wherein the stroller accessory (200) further comprises a mechanical transmission system (290), the mechanical transmission system (290) being carried by the frame (210) of the stroller accessory while extending between the front portion (211) and the rear portion (212) of the frame of the stroller accessory, and the mechanical transmission system (290) mechanically couples the actuation member (280) and the control mechanism (270) such that the actuation member actuates the control mechanism.

16. The stroller accessory of claim 1, wherein the frame (210) of the stroller accessory (200) is adapted to fold between an in-use configuration, in which the stroller accessory is connectable to the stroller by the connection mechanism (250), and a storage configuration, which is more compact than the in-use configuration, when the stroller accessory (200) is disconnected from the stroller (100).

17. An assembly forming a double stroller (1), comprising a stroller (100) and a stroller accessory (200) according to any one of claims 1 to 16, wherein the stroller (100) comprises:

a frame (110) having a rear portion (112) connected to the front portion (211) of the frame (210) of the stroller fitting (200) by the connection mechanism (250), and the frame (110) supporting a receiving part (120) during use, a child different from a child that can be received in the receiving part (220) of the stroller fitting (200) being receivable in the receiving part (120);

at least one front wheel (130G, 130D) carried and rolling on the ground during use and coupled in a pivoted manner to a front portion (111) of the frame (110) of the baby stroller (100);

two rear wheels (140G, 140D) carried and rolling on the ground during use and fixedly coupled to the rear portion (112) of the frame (110) of the baby stroller (100);

a push member (150) carried by the rear portion (112) of the frame (110) of the stroller (100); and

a rolling prevention system (160) carried at least in part by the rear portion (112) of the frame (110) of the stroller (100) and adapted to reversibly interfere with the rear wheels (140G, 140D) of the stroller (100) to prevent rolling thereof.

18. The assembly for forming a double stroller of claim 17, wherein the two wheels (230G, 230D) of the stroller accessory (200) are separated perpendicular to the fore-aft direction by a path (V230), the path (V230) being larger than a path (V140) separating the two rear wheels (140G, 140D) of the stroller (100) perpendicular to the fore-aft direction.

Technical Field

The present invention relates to a stroller accessory. The invention also relates to an assembly for forming a double stroller comprising a stroller and such a stroller accessory.

Background

Whether it concerns dealing with the birth of twins or of children of similar age, the simultaneous transport of two very young children by a single parent in a stroller constitutes a problem for which the only few solutions provided so far, as described in detail below, are based on the idea of providing a double stroller by "enlarging" a single stroller, that is to say, providing a stroller with a single fixed seat, the frame of which is usually seated on two fixed rear wheels or two pivoting front wheels, and the drive of which is done by a user standing behind the frame, in order to push the frame forward in motion and in order to control the rolling of the rear wheels to stop the single stroller. These existing double stroller solutions are not satisfactory and are especially impractical, uncomfortable or even dangerous.

In fact, a first solution consists of a double stroller in which two children to be transported are positioned side by side. This solution necessarily involves a considerable widening of the double stroller, even limiting the minimum single width of the seating area of each of the two children, which is also highly prejudicial to their comfort and complicates or even prohibits the installation of baby seats or baby baskets. In use, it is not possible to use such a pushchair on narrow walkways, especially walkways of small width. In addition, since the space between the left and right wheels of the double stroller is large and the weight of such a double stroller is large, the double stroller is difficult to operate despite the use of the rear handle continuously extending over the entire width of the double stroller. Furthermore, the folding and unfolding operations are so cumbersome that the user usually gives up folding and unfolding, which means that the double stroller is bulky even when not in use.

A second solution consists of a double stroller in which two children to be transported are in tandem, that is, one behind the other, sometimes face to face, and at the same height. In this case, the seating areas of the two children may be widened and independent from each other, which is comfortable for the children, and allows any type of seat and basket accommodating each of the two children to be installed. However, this solution necessarily results in a long frame for a double stroller: this requires sufficient reinforcement of the structural strength of the frame, particularly by adding reinforcing ribs extending in the front-rear direction of the frame, which makes the frame heavier and again complicates the folding and unfolding operations. In use, the wheelbase between the front and rear wheels of a double stroller is so large that the maneuverability of such a double stroller is modest, even though a strategy of replacing the conventional handlebars with wheel-style handles is used. Moreover, this type of double stroller can only be moved through the walkway in cumbersome operations, if not dangerous: in fact, given the large wheelbase of the frame, the user cannot lift the front wheel by tilting the rear part of the double stroller slightly backwards around the axis of rotation of the rear wheel pressing on the ground, so in order to move up onto the sidewalk, the user must usually loosen the handle, then move to the front of the double stroller and squat down to lift the front part until the front wheel rests on the sidewalk, and then return to the rear of the stroller to again grasp the handlebars.

A third solution consists of a double stroller in which two children to be transported are in tandem, while half-overlapping. According to this solution, the frame of the double stroller supports, in addition to the seat or the main basket at the conventional first height, a seat or a sub-basket, usually fastened to the chassis in a removable manner, usually at a second height, which is much lower than the first height, usually at the front of the frame. Apart from the child, who is seated in the seat or in the sub-basket, and his parents, who usually recognize very moderately that his seating height is at the same level as the tail pipe of the car, it is important to note that here again the frame of the double stroller has to be extended and reinforced and thus becomes heavier with respect to the single stroller. The same negative effects are therefore also found in terms of operability and safety during use and practicality of folding.

In addition to the various double stroller solutions listed above, it is known to use a single stroller to transport two children when the single stroller is equipped with an add-on board (also known as a "kiddy board"). The plate comprises a frame forming a platform provided with wheels and arranged to be reversibly connected to the rear of the frame of the single baby stroller. Once connected, the board rolls over the ground when driven by the stroller, which is pushed by an adult user. The assembly of the stroller and the panel connected thereto enables transport of a first child positioned in the stroller and a second child, typically larger than the first child, standing on the platform of the frame of the panel, while an extended arm of an adult positioned behind the platform propels the assembly by pushing a handlebar or handle provided at the rear of the single stroller. Such a panel is described in detail, for example, in WO 2018/050303. In practice, it is only possible to use the board if the second child to be transported is large enough to stand on the board correctly by itself. More generally, such a panel and the single stroller connected thereto do not form a double stroller which can accommodate two children in tandem under similar respective comfort conditions and which can be actuated by an adult user standing behind the double stroller to push it forward and control it to be prevented from rolling to stop it.

Finally, WO 2007/033562 does not give much detail on detachably attaching an additional stroller body behind the main stroller to form a double stroller. It is pointed out in this document that the frame of the main pushchair and the frame of the additional pushchair body are firmly fixed to each other, which results in at least the same disadvantages as the one described above.

Disclosure of Invention

The object of the present invention is to propose a new baby stroller accessory that forms a double baby stroller from a single baby stroller, which is practical, operable and safe, without affecting the comfort of the two children to be transported and the configurability of the seats and/or baskets used.

To this end, the present invention relates to a stroller accessory attachable to a stroller to collectively form a double stroller and not usable for transporting a child when the stroller accessory is disconnected from the stroller, wherein the stroller accessory comprises:

a frame carrying, during use, containment means in which a child to be transported can be positioned;

a connection mechanism for reversibly connecting the stroller accessory to the stroller to form a double stroller, the connection mechanism carried by a front portion of the frame of the stroller accessory and adapted to removably secure the front portion of the frame of the stroller accessory to a rear portion of the frame of the stroller so as to both dispose the stroller accessory behind the stroller in a fore-and-aft direction and define a tilt axis that extends substantially parallel to the ground and substantially perpendicular to the fore-and-aft direction during use, and the front portion of the frame of the stroller accessory and the rear portion of the frame of the stroller are free to tilt relative to each other about the tilt axis;

two wheels carried and rolling on the ground when the stroller accessory is connected to the stroller by the connection mechanism, and coupled to a rear portion of the frame of the stroller accessory to pivot about respective pivot axes;

a pushing member carried by a rear portion of the frame of the stroller accessory and adapted to be manually pushed by a user standing behind the double stroller;

a control mechanism for controlling roll prevention of the double stroller, the control mechanism being carried by a front portion of a frame of the stroller accessory and adapted to mechanically cooperate with a roll prevention system integrated in the stroller to control the roll prevention system when the stroller accessory is connected to the stroller by the connection mechanism, and

an actuation member carried by a rear portion of the frame of the stroller accessory so as to be actuatable by a user standing behind the double stroller, and coupled to the control mechanism to actuate the control mechanism.

The present invention also relates to an assembly for forming a stroller, the assembly comprising a stroller and a stroller accessory as described above, wherein the stroller comprises:

a frame, the rear portion of which is connected to the front portion of the frame of the stroller accessory by a connection mechanism, and which, during use, supports a receiving part in which a child other than the child placed in the receiving part of the stroller accessory can be placed;

at least one front wheel carried and rolling on the ground during use and pivotally connected to the front of the frame of the stroller;

two rear wheels carried and rolling on the ground during use and fixedly coupled to the rear of the stroller frame;

a pushing member carried by a rear portion of a frame of the stroller, an

A roll prevention system carried at least in part by a rear portion of the stroller frame and adapted to reversibly interfere with a rear wheel of the stroller to prevent rolling thereof.

The present invention thus breaks the existing approach in that it proposes to form a double stroller by associating a single stroller, in particular an existing single stroller, with an accessory that attaches to the single stroller as an add-on. The stroller and the accessory each have their own frame and the two frames can be connected in tandem by a reversible connection mechanism carried by the accessory and designed to releasably secure the two frames while allowing free tilting between the two frames about a tilt axis which, in use, is horizontal and perpendicular to the fore-aft direction of the double stroller. In addition to advantageously mounting interchangeably components for receiving a first child, such as a seat or basket, and standing on the ground by at least one pivoting front wheel or two pivoting front wheels and two fixed (i.e., non-pivoting) rear wheels, the frame of the stroller has a rear push component and a roll inhibiting system capable of inhibiting rotation of the rear wheels by interfering with at least one rear wheel to stop the stroller; at the same time, the frame of the accessory also advantageously interchangeably mounts its own components, such as a seat or a basket, for accommodating a second child and is provided at the rear with its own pushing component, while standing on the ground by means of two pivoting wheels, while at the front, the frame of the accessory is provided with a connection mechanism for connection to the rear of the frame of the stroller, which connection mechanism enables the two frames to be secured in tandem in use, while allowing free rotational tilting thereof about the aforementioned tilting axis. Furthermore, at the rear of the accessory, the frame of the accessory is also provided with actuation means enabling actuation of a control mechanism provided at the front of the frame of the accessory, so as to be able to cooperate with the rolling prevention system of the stroller, so as to control the rolling prevention system and therefore the rolling prevention of the double stroller.

The maneuverability of the double stroller according to the invention is remarkable. Indeed, in order to be able to change the direction of advance of the double stroller, the user standing behind the double stroller transmits a corresponding directional control to the push member of the accessory, which orients the pivoting front wheel of the stroller in the desired direction, while the pivoting wheel of the accessory orients itself in the opposite direction to the orientation direction of the front wheel of the stroller, by a similar action as the differential obtained by the fixed rear wheel of the stroller: the feeling of orientation is at least as smooth to the user as the steering of a single stroller with two fixed rear wheels and one or two pivoting front wheels, although the user of a double stroller must push substantially double the weight and most of the weight is carried by the fixed rear wheels of the stroller so that the latter effectively receives all of the redirecting thrust exerted by the user on the push member of the accessory and transmits this thrust in the opposite direction to the wheels of the accessory and the front wheels of the stroller, as is the case with a differential. Furthermore, when the double stroller according to the present invention has to cross a lateral obstacle such as a sidewalk, the double stroller easily crosses the obstacle like a crawler in the longitudinal direction: for example, to go up a sidewalk or the like that extends laterally in front of the double stroller, a user standing just behind the pushing member of the accessory pushes the double stroller until the front wheels of the stroller are next to the sidewalk, or even against the sidewalk; then, the user grasps the pushing member of the accessory with one hand and the pushing member of the stroller with the other hand, and if possible, puts himself on the right side or the left side of the accessory; the user may then manually push the push member of the stroller slightly downwardly and rearwardly to tilt the frame of the stroller about the tilt axis to lift the front wheels of the stroller from the ground while maintaining the rear wheels of the stroller supported on the ground, the tilting being accomplished with respect to the frame of the accessory, the wheels of which remain in contact with the ground; by pushing the pushing member of the accessory forward, the user can move the double stroller forward by rolling the rear wheels of the stroller and the wheels of the accessory until the front wheels of the stroller are higher than the sidewalk; next, the user can release the force he has previously exerted on the pushing member of the stroller, which causes the front wheels of the stroller to re-contact the ground at the height of the walkway; the user can then push the pushing member of the accessory forward, if applicable, after again placing himself on the pushing member, if applicable, until the rear wheel of the stroller comes near, or even abuts, the walkway; the user may then tilt the frame of the accessory by manually pushing the pushing member of the accessory slightly downwardly and rearwardly to move the rear wheel of the stroller away from the ground whilst the wheels of the accessory remain supported on the ground, the frame of the stroller not interfering with such tilting of the frame of the accessory, thereby allowing it to tilt freely about the above-mentioned tilting axis relative to the frame of the accessory; by pushing the pushing member of the accessory forward, the user can advance the double stroller by rolling the wheels of the accessory on both the low level of the sidewalk and the high level of the sidewalk until the rear wheels of the stroller clear the sidewalk; the user can then release the force that he exerts on the pushing member of the accessory, causing the rear wheel of the baby stroller to come into contact again with the ground at the high level of the walkway; the user can then push the pushing member of the accessory forward until the wheels of the accessory are close to, or even against, the sidewalk; the user then simply pushes on the pushing member of the accessory and lifts it up slightly, if necessary, so that the wheels of the accessory climb the walkway and lie on the high level of the walkway, with the front and rear wheels of the stroller standing on the high level of the walkway as the frame of the accessory tilts relative to the frame of the stroller. It is therefore easy for the user to negotiate obstacles, the user does not need any external assistance, and it is particularly safe to always keep one hand on the pushing part of the accessory.

The stopping safety of the double stroller according to the present invention is also significant. In fact, when the user wishes to stop the double stroller, the user standing behind the double stroller actuates the actuation member provided behind the frame of the accessory, which, thanks to the connection between the actuation member and the control member provided in front of the frame of the accessory, actuates the control mechanism which in turn exerts an appropriate control over the rolling prevention system of the stroller, so that it prevents the rotation of the rear wheel of the stroller: rolling of the double stroller is then effectively prevented because the wheels of the double stroller, which are interfered to prevent rotation, are the wheels that bear the majority of the transport weight, i.e., the rear wheels of the stroller, regardless of the load condition of the double stroller, i.e., regardless of the actual presence and weight of the two children respectively housed in the accessory and in the stroller.

Since the connection between the stroller and the accessory of the double stroller is reversible, the accessory can be disconnected from the stroller when desired by the user: the stroller may continue to be used alone as a single stroller to transport a child, a user standing behind the single stroller pushing it forward, and actuating its roll arrest system to arrest it; at the same time, the accessory no longer has the function of transporting the child, in particular since the front part of the frame of the accessory has no wheels or similar components for rolling on the ground, but the accessory is still ready for attachment to a single baby stroller to reform a double baby stroller, since advantageously a connection mechanism operable by the user with one hand is provided, the connection/disconnection between which can even be instantaneous, as will be explained in more detail below.

Likewise, the accessory according to the invention may advantageously be arranged to be foldable so as to occupy less space and, if applicable, to be transported by the user of the pushchair when the latter is used as a single-person pushchair, the folded accessory being able to be held in one hand by the user, or placed over his shoulder by means of a strap, or may also be hooked by a special means at the back of the frame of the pushchair. Of course, while the stroller is also collapsible, it should be understood that the twin stroller assembly according to the present invention can be particularly compact in the form of a collapsible fitment and a collapsible stroller, each of which can be allowed to serve as carry-on luggage on a commercial airliner, for example.

According to an advantageous optional aspect of the accessory of the present invention, the stroller accessory further comprises a blocking mechanism for blocking a wheel of the stroller accessory, the blocking mechanism being carried by a rear portion of the frame of the stroller accessory and adapted to reversibly interfere with at least one or each of the two wheels of the stroller accessory to prevent rolling thereof, irrespective of the direction of the pivot axis of the wheel of the stroller accessory about the wheel of the stroller accessory, and the actuation member is coupled to the blocking mechanism to actuate the blocking mechanism at the same time as the control mechanism is actuated.

Due to this blocking mechanism, the rolling blocking of the double stroller is enhanced, since the blocking mechanism integrated into the accessory ensures an additional rolling blocking of the double stroller, in addition to the rolling blocking that can be described as a primary blocking and provided by the blocking system of the stroller controlled by the control mechanism of the accessory. Thus, even when the double stroller is in a special use situation, such as a very steep or uneven slope, the prevention of the wheels of the fitting by the prevention mechanism enhances the rolling prevention of the double stroller, which is still ensured mainly by the prevention of the rear wheels of the stroller under the effect of the prevention system integrated into the stroller. The blocking of the wheel of the fitting is carried out without any stress for the user, since the actuation of the blocking mechanism of the fitting is done jointly with the actuation of the control mechanism of the fitting by pushing only the actuating part behind the fitting. Thus, once the user wishes to stop the double stroller, the user standing behind the double stroller actuates the actuation member provided behind the accessory frame, which, as mentioned above, actuates both the control mechanism and the blocking mechanism acting on the wheels of the accessory.

According to an additional advantageous feature of the blocking mechanism of the fitting:

for at least one of the two wheels of the stroller fitting or each of the two wheels of the stroller fitting, the blocking mechanism includes a blocking member that is substantially centered on the pivot axis of the wheel of the stroller fitting and is movable along the pivot axis of the wheel of the stroller fitting relative to the frame of the stroller fitting between:

a disengaged position in which the blocking element is disengaged from the wheels of the stroller accessory, thereby allowing the wheels of the stroller accessory to roll freely, an

An engaged position in which the blocking element interferes with a tread of a wheel of the stroller accessory to prevent rolling of the wheel of the stroller accessory.

Each of the two wheels of the stroller accessory is associated with a holder:

the holder is mounted at the rear of the frame to pivot about a pivot axis of the wheels of the stroller fitting,

the wheels of the stroller accessory are mounted on the holder, rotate about themselves to roll, and

which guides the translation of the respective blocking element along the pivot axis of the wheel of the baby stroller accessory.

The prevention mechanism further includes:

a spring for the or each arresting element, urging the arresting elements back into the disengaged position, an

An actuator connected in motion to the actuation member and driving the blocking element from the disengaged position to the engaged position while blocking the force of the spring during the actuation member jointly actuates the blocking mechanism and the control mechanism.

The or each blocking element includes a first end and a second end, the first and second ends being opposite one another along the pivot axis of the respective wheel of the stroller fitting, the first end of the or each blocking element being provided with a first bearing surface which abuts the tread of the respective wheel of the stroller fitting along the pivot axis thereof when the blocking element is in the engaged position, and the second end of the or each blocking element being provided with a second bearing surface which abuts a dedicated surface of the actuator along the pivot axis of the respective wheel of the stroller fitting under the action of a respective spring.

The actuator is rotatable relative to the frame of the stroller accessory about an actuation axis extending substantially perpendicular to the respective pivot axes of the wheels of the stroller accessory.

The rear portion of the frame of the stroller fitting includes a cross member:

the cross member extends between the two wheels of the stroller fitting,

an actuator mounted inside the beam and guided in rotation about an actuation axis; and

the pedal of the actuating member is mounted on the cross member, tilted about the actuating axis, and fixed to the actuator.

The accessory or the double stroller according to the invention forms other additional advantageous features of the assembly:

the control mechanism includes a support that:

a frame front coupled to the stroller accessory to freely tilt about a tilt axis, an

Is configured to partially enclose a rear portion of the stroller frame when the stroller accessory is coupled to the stroller by the coupling mechanism, thereby being rotatably coupled to the rear portion of the stroller frame about the tilt axis;

the control mechanism further comprises a coupling element that:

movably carried by a support of the control mechanism;

is coupled to the actuating member such that the actuating member drives movement of the coupling member, an

The stroller accessory is adapted to engage the stroller roll inhibiting system when the stroller accessory is connected to the stroller by the connection mechanism.

When the stroller accessory is connected to the stroller by the connection mechanism, the coupling part is adapted to connect itself in motion to an actuation part, in particular by shape matching, which belongs to the rolling prevention system of the stroller, and which is arranged to be actuated directly by a user standing behind the stroller when the stroller accessory is disconnected from the stroller.

The coupling element comprises a yoke adapted to connect itself in motion to the pedal of the actuating portion while covering the pedal.

The support member of the control mechanism includes left and right branches and a rod fixedly coupling the left and right branches to each other, and the left and right branches are rotatably coupled to the rear portion of the stroller frame about a tilt axis while the left and right branches are configured to partially enclose the left and right uprights, respectively, of the rear portion of the stroller frame when the stroller accessory is connected to the stroller by the connection mechanism.

The connecting mechanism comprises a bearing part:

the carrier supports and guides the movement of the rest of the connection mechanism,

a support of the control mechanism is mounted on the carrier to be tilted about a tilt axis; and

the load-bearing portion is integrated into a footrest carried by a front portion of the stroller accessory frame.

The stroller assembly further includes a mechanical transmission system carried by the frame of the stroller assembly while extending between the front and rear portions of the frame of the stroller assembly and mechanically coupling the actuating member and the control mechanism such that the actuating member actuates the control mechanism.

The mechanical transmission system comprises a cable coupling the actuation part and the coupling part to each other, such that the actuation part drives the movement of the coupling part.

When the stroller accessory is disconnected from the stroller, the frame of the stroller accessory is adapted to fold between an in-use configuration, in which the stroller accessory can be connected to the stroller by a connection mechanism, and a storage configuration, which is more compact than the in-use configuration.

The two wheels of the stroller assembly are separated perpendicular to the fore-aft direction by a path that is greater than the path separating the two rear wheels of the stroller perpendicular to the fore-aft direction.

Drawings

The invention will be better understood from a reading of the following description, which is provided by way of example only and made with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of a twin stroller forming assembly according to the present invention.

Fig. 2is a view similar to fig. 1, but viewed in a different direction than fig. 1.

FIG. 3 is a perspective view of an accessory belonging to the double stroller forming assembly of FIGS. 1 and 2, according to the present invention, shown separately in FIG. 3;

fig. 4 is a perspective view showing the rear portion of the stroller and the front portion of the accessory of fig. 3 belonging to the double stroller forming assembly of fig. 1 and 2, the stroller and the accessory being separated from each other.

Fig. 5 is a view similar to fig. 4, showing the step of interconnecting the stroller and the accessory.

Fig. 6 is an elevation view taken along arrow VI of fig. 4, showing the stroller and accessory connected to each other, with the accessory shown in solid lines and the stroller only partially shown in phantom.

Fig. 7 is a view similar to fig. 6 showing the relative tilt between the stroller and the accessory.

FIG. 8 is a view similar to FIG. 6, showing actuation of the system for inhibiting rolling of the stroller;

fig. 9 is a perspective view similar to fig. 2, showing a schematic view of the double stroller assembly when changing the forward direction of the double stroller assembly.

Fig. 10 is a front view along arrow X of fig. 9;

figure 11 shows a front view of the fitting of figure 3 in a folded condition;

FIG. 12 is a view similar to FIG. 11 but from a different perspective than FIG. 11;

FIG. 13 is a view similar to FIGS. 11 and 12 but from a different perspective than FIGS. 11 and 12;

FIG. 14 is a partial cross-sectional view taken along plane XIV of FIG. 1;

FIG. 15 is a partial cross-sectional view taken along line XV-XV of FIG. 14;

FIG. 16 is a view similar to FIG. 14, showing actuation of the stop mechanism of the fitting;

FIG. 17 is a view similar to FIG. 16;

fig. 18 is a view similar to fig. 15, showing the fitting in the state shown in fig. 17.

Detailed Description

Fig. 1, 2, 9 and 10 show a double stroller 1 formed from an assembly of a stroller 100 and a stroller accessory 200. In fig. 4-8, the stroller 100 and the accessory 200 are shown only partially. In fig. 3 and 11 to 13, only the fitting 200 is shown. The stroller 100 and the accessory 200 will be described in subsequent detail below.

The stroller 100 includes a frame 110 defining a front-to-rear axis X110. The front-rear axis X110 extends between a front region of the frame 110, which front region of the frame 110 faces the front when the stroller 100 is pushed forward, and a rear region of the frame, which is opposite to the front region, so that the rear region faces rearward when the stroller 100 is pushed forward. Further, the fore-aft axis X110 is located substantially in the middle of the frame 110, extending in a direction in which the fore-aft axis is substantially the same distance from the left and right sides of the frame 110.

In the exemplary embodiment shown (confined in the configurations), frame 110 has a structure that is primarily made up of tubes made of assembled tubes. Such a tube configuration advantageously enables folding upon itself to transition the frame 110 between the deployed, in-use configuration, as shown in fig. 1, 2 and 4-10, and the folded, stored configuration. In this respect, the reader may refer for example to WO2010/000987 for possible corresponding embodiment details.

Regardless of its embodiment, the frame 110 is designed to support the housing part 120 during use, so as to be able to house a first child carried by the double stroller 1, which is seated in the housing part 120 in a sitting position, a reclining position or an intermediate position therebetween. Accordingly, the receiving part 120 is selected from a seat, a basket, a cradle, etc., and embodiments of the receiving part 120 are not limited to the present invention. Furthermore, in a manner known per se and not described in detail herein, the carriage 110 is advantageously provided so as to enable the interchangeable (exchange) housing part 120, in particular depending on the age of the first child to be transported.

The stroller 100 also includes wheels that are supported and rolled on the ground during use, while the wheels are disposed in a lower region of the frame 110 to support the frame 110.

Among the wheels of the stroller 100, there are a left front wheel 130G and a right front wheel 130D. Each of the wheels 130G and 130D defines an axis of rotation, left X130G and right X130D, respectively, about which the wheel rotates on itself to roll over the ground. During use, the rotational axis X130G and the rotational axis X130D extend substantially parallel to the ground. The left front wheel 130G is mounted on the left-hand portion of the front portion 111 of the frame 110, coupled thereto while freely pivoting about a pivot axis Z130G extending radially or perpendicularly with respect to the axis of rotation X130G of the left front wheel 130G, so that the left front wheel 130G can pivot about the pivot axis Z130G independently of its rolling movement about its axis of rotation X130G, thereby changing the direction of the wheel relative to the frame 110 and thus changing the direction of travel of the frame 110 over the ground. The left front wheel 130G may thus be described as a "pivoting wheel", sometimes referred to as an "idler wheel". Similarly, the right front wheel 130D is mounted on a right side portion of the front portion 111 of the frame 110, is free to pivot about a pivot axis Z130D extending radially or perpendicularly with respect to the rotational axis X130D of the right front wheel 130D while being coupled thereto, and the pivot axis Z130D is substantially parallel to the pivot axis Z130G. In order to improve the manoeuvrability of the wheels 130G and 130D, their pivot axes Z130G and Z130D do not coincide with their rotation axes X130G, X130D, but are advantageously offset from the rotation axes X130G, X130D, such that the pivot axis of each wheel is offset relative to the rotation axis of the wheel. In fact, the inherent arrangement and improvement of the wheels 130G and 130D is not limited because these wheels are pivoted and disposed in front of the frame 110.

Among the wheels of the stroller 100, there are a left rear wheel 140G and a right rear wheel 140D. The left and right rear wheels 140G and 140D define left and right rotational axes X140G and X140D, respectively, the respective wheels rotate about the left and right rotational axes X140G and X140D, respectively, to roll on the ground, and the left and right rotational axes X140G and X140D extend substantially parallel to the ground in use. The left rear wheel 140G is mounted on a left side portion of the rear portion 112 of the frame 110, fixedly coupled thereto, that is, the left rear wheel 140G does not pivot as compared to the front wheel 130G and the front wheel 130D. Likewise, the right rear wheel 140D is mounted to and fixedly coupled to a right side portion of the rear portion 112 of the frame 110. In the exemplary embodiment shown in the figures, the left rotation axis X140G and the right rotation axis X140D are rectilinear, the left rear wheel 140G and the right rear wheel 140D thus forming a fixed rear train centered on the same rotation axis.

As shown in fig. 4, reference numeral V140 denotes a path that separates the left rear wheel 140G and the right rear wheel 140D in a direction perpendicular to the front-rear axis X110.

Stroller 100 also includes a push member 150 that is securely carried by rear portion 112 of frame 110 in an upper region of the rear portion. During use, the push member 150 is located at the height of the hand of an adult user standing upright and behind the stroller 100 and, if applicable, offset to the left or right of the fore-aft axis X110. Pushing member 150 allows a user to exert manual stress on frame 110, particularly in an attempt to push frame 110 forward by rolling the frame over the ground via wheels 130G, 130D, 140G, and 140D, or to lift rear wheel 140G and rear wheel 140D relative to the ground by slightly lifting a rear region of frame 110 while maintaining front wheel 130G and front wheel 130D in contact with the ground, or to lift front wheel 130G and front wheel 130D relative to the ground by tilting a rear region of frame 110 rearward and downward while maintaining rear wheel 140G and rear wheel 140D in contact with the ground. For example, the pushing member 150 is made in the form of a rod, a handle, or the like. More generally, embodiments of the pushing member 150 are not limited to the present invention.

The baby stroller 100 further comprises a rolling prevention system 160, which rolling prevention system 160 is carried by the frame 110 and makes it possible to stop the baby stroller 100 (immobiize) by preventing the rotation of its rear wheels 140G and 140D about their rotation axes X140G, X140D. The roll inhibiting system 160 is designed to be pushed by a user standing behind the stroller 100, and for this purpose the roll inhibiting system 160 comprises an actuating portion 161, which actuating portion 161 is carried by the rear portion 112 of the frame 110 so as to be actuatable by the user, for example by foot or hand. In the exemplary embodiment shown in the figures, the actuation portion 161 comprises or even consists of a tilting pedal 162, as clearly shown in fig. 4 and 5. Further, the rolling prevention system 160 includes a prevention mechanism 163 capable of preventing rotation of the rear wheels 140G and 140D by interfering with the rear wheels 140G and 140D, and the prevention mechanism 163 is reversibly actuated by the actuating portion 161: the blocking mechanism 163, which is not described in detail in the figures and is schematically illustrated in dashed lines in fig. 4 and 5, is designed to move a blocking element associated with the respective wheel with respect to the rear wheel 140G and the rear wheel 140D, the or each blocking element thus moving between a blocking position and an unblocking position; in the blocking position, the blocking element blocks the rolling of the wheel by abutting engagement with a tread relief (reliefof this wheel), in particular in the circumferential direction with respect to the rotation axis X140G, X140D of the associated wheel, irrespective of the angular position of the wheel about its rotation axis; in this non-blocking position, the blocking element does not interfere with the above-mentioned tread relief of the associated wheel. Thus, the movement of the above-described blocking element by the blocking mechanism 163 is controlled by the actuator 161. The reader is referred to the example embodiment details of such a blocking mechanism 163 given in WO 2011/148062. Of course, this embodiment of the blocking mechanism 163, like the embodiment of the actuating portion 161, is not limiting to the invention, as the blocking mechanism controlled by the actuating portion is capable of interfering (interfering) with one and/or the other of the rear wheels 140G and 140D, thereby reversibly blocking the rotation of one and/or the other of the rear wheels 140G and 140D.

Other features of the stroller 100 will be disclosed later, after describing the accessory 200 in turn.

The fitting 200 includes a frame 210, the frame 210 defining a forward-rearward axis X210 extending between forward and rearward regions of the frame 210 that face forward and rearward, respectively, when the fitting 200 is moved forward during use. The front-rear axis X210 is located at substantially the same distance from the left and right sides of the frame 210, respectively.

In the exemplary embodiment shown in the figures, the frame 210 has a tubular construction, for example, made primarily by assembling tubes. An advantage of the construction of the tube will be provided later on. That is, other embodiments of the frame 210 are contemplated and the above-described configuration of the tube is not limiting with respect to the present invention.

The fitting 200 includes a receiving member 220, the receiving member 220 being supported by the frame 210 during use. The receiving part 220 enables to receive a second child, other than the child carried in the stroller 100, carried by the double stroller 1, which is positioned in the receiving part 220 in a sitting posture, a reclining posture or an intermediate posture therebetween. Actually, the receiving part 220 is selected from a seat, a basket, a cradle, and the like. According to a similar consideration to the above modification of the receiving part 120, the receiving part 220 is advantageously supported by the frame 210 interchangeably, thereby making it possible to change the kind of the receiving part 220 according to the age of the second child to be carried by the double stroller 1. In all cases, it will be noted that the containing part 120 and the containing part 220 are independent of each other, since the respective properties of these two containing parts are independent of each other.

The accessory 200 also includes a left wheel 230G and a right wheel 230D. The two wheels, left wheel 230G and right wheel 230D respectively, define axes of rotation, left X230G and right X230D respectively, about which the respective wheels rotate on themselves to roll on the ground. The wheel 230G is mounted on the left portion of the rear portion 212 of the frame 210, coupled thereto while freely pivoting about a pivot axis Z230G extending radially or perpendicularly with respect to the left rotation axis X230G, so that the left wheel 230G can freely pivot about the pivot axis Z230G independently of its rolling movement about its rotation axis X230G, thereby changing the direction of the left wheel 230G relative to the frame 210 and thus changing the direction of travel of the frame 210 over the ground. Similarly, the right wheel 230D is mounted on the right side portion of the rear portion 212 of the frame 210, coupled thereto while freely pivoting about a pivot axis Z230D extending radially or perpendicularly with respect to the right rotational axis X230D, and the pivot axis Z230D is substantially parallel to the left pivot axis Z230G. In light of considerations similar to those described above for the front wheels 130G and 130D, it should be understood that the wheels 230G and 230D may be described as pivoting wheels or idlers relative to the frame 210. To improve the maneuverability of the wheels 230G and 230D, their pivot axes Z230G and Z230D do not coincide with their axes of rotation X230G, X230D, but are advantageously offset from that axis such that the pivot axis of each wheel 230G and 230D is offset relative to its axis of rotation. In this case, since the wheels 230G and 230D are pivoted and support the rear portion 212 of the frame 210, the inherent arrangement and modification of the wheels 230G and 230D is not restrictive and may differ from the exemplary embodiment shown in the drawings.

As shown in fig. 2, the left wheel 230G and the right wheel 230D are separated from each other by a path V230, perpendicular to the fore-aft axis X210.

The fitting 200 also includes a push member 240, the push member 240 being securely carried by the rear portion 212 of the frame 210 in an upper region thereof. During use, the push member 240 is located at the height of the hand of a standing adult and, if applicable, of an adult walking behind the double stroller 1, the push member 240 thus allowing the user to push the frame 210 with a hand, in particular in order to push the frame 210 forward, in order to lift the rear area of the frame 210 slightly to lift the wheels 230G and 230D from the ground, or in order to tilt the rear 212 of the frame 210 slightly backwards and downwards while keeping the wheels 230G and 230D in contact with the ground. In fact, the embodiment of the pushing member 240 is not limited, and the pushing member 240 may be a rod, a handle, or the like. In the exemplary embodiment shown in the figures, the various embodiments of the pushing member 150 and the pushing member 240 are the same, but this may be different.

The accessory 200 further comprises a connection mechanism 250, which connection mechanism 250 allows the stroller 100 and the accessory 200 to be reversibly connected to each other and, if applicable, to be momentarily connected to each other as explained later. As best shown in fig. 1-8, coupling mechanism 250 is carried by front portion 211 of frame 210 in a lower region thereof and is designed to mate with a lower region of rear portion 112 of frame 110 to removably secure front portion 211 of frame 210 to rear portion 112 of frame 110. The fixation between the frame 110 and the frame 210 is thus accomplished by the connection mechanism 250, so that the fitting 200 is arranged behind the stroller 100 in the fore-aft direction of the stroller 1, which extends parallel to the fore-aft axis X110 of the frame 110 and the fore-aft axis X210 of the frame 210. As with the exemplary embodiment shown in the figures, the anterior-posterior axis X110 and the anterior-posterior axis X210 are also advantageously aligned by a connection mechanism 250. Furthermore, as shown in fig. 1, 2 and 6 to 8, by particular mechanical modifications, the connection mechanism 250 is adapted to define a tilting axis Y250 about which the rear portion 112 of the frame 110 and the front portion 211 of the frame 210 are free to tilt with respect to each other. The tilting axis Y250 extends substantially parallel to the ground during use and substantially perpendicular to the front-rear direction of the double stroller 1. Thus, frame 110 and frame 210 are fixedly connected to each other in all directions by linkage 250, except for the play inherent to linkage 250, and frame 110 and frame 210 are freely movable relative to each other about tilt axis Y250, except for tilting about tilt axis Y250. Thus, in the exemplary embodiment shown in the figures, tilt axis Y250 extends parallel to and is spaced from the rotational axis X140G of rear wheel 140G and the rotational axis X140D of rear wheel 140D.

In fact, embodiments of linkage mechanism 250 are not limited to the present invention, as the linkage mechanism provides reversible securement between front portion 211 of frame 210 and rear portion 112 of frame 110, while allowing free tilting therebetween about tilt axis Y250. In particular, regardless of the embodiment of the connection mechanism 250, the stroller 100 and the accessory 200 can be disconnected from each other when so controlled by the user, as shown in fig. 3-5.

As shown in the exemplary embodiment illustrated in the figures, and more particularly in fig. 3 to 5, the connection mechanism comprises a load-bearing part 251, which load-bearing part 251 is, during use, fixedly secured to the vehicle frame 210, while being fixedly carried, in particular permanently carried, by the front part 211 of the vehicle frame 210. In particular, according to a particularly advantageous embodiment implemented herein, the load-bearing portion 251 is permanently integrated in a footrest 260 solidly carried by the front portion 211 of the frame 210. The connection mechanism 250 also comprises two male elements 252, a left and a right male element, centred on the same geometric axis Y252, it being noted that in fig. 3 and 4 only the right element of the element 252 is visible and that the left element is symmetrical to the right element with respect to a geometric plane perpendicular to the axis Y252 and containing the anteroposterior axis X210. Each of the two male members 252 is movably supported by the carrier 251 relative to the frame 210 between a connected position and a disconnected position; the connecting position is shown in fig. 3 and 4, and in the connecting position the male element 252 is deployed with respect to the carrier part 251; the disconnected position is shown in fig. 5, in which the male element is retracted relative to the carrier part. The male member 252 in the attached position is configured to mate with the rear portion 112 of the frame 110. To this end, a left side portion of the rear portion 112 of the frame 110 includes a left rear pillar 114G, a right side portion of the rear portion 112 of the frame 110 includes a right rear pillar 114B, and these pillars 114G and 114D are parallel to each other while extending upward from a left rear wheel 130G and a right rear wheel 130D, respectively, as best shown in fig. 4 and 5. Further, left and right portions of the rear portion 112 of the frame 110 are respectively provided with concave housings 115: these two concave shells 115 extend centered on the same geometric axis Y115 and perpendicular to the left and right uprights 114G, 114D, and these two concave shells 115 are hollowed out in the surface of the left and right uprights 114G, 114D, respectively, which are opposite each other, these concave shells 115 advantageously extending into the thickness of the inner inserts of these uprights inside the uprights 114G, 114D, respectively, it being noted that in fig. 4 and 5 only the left shell of the two shells 115 is visible, and the right shell is symmetrical to the left shell with respect to a geometric plane containing both the front and rear axes X110 and Y115. When the connection mechanism is attached to rear portion 112 of frame 110, in particular between upright 114G and upright 114D, more particularly at female housings 115, male elements 252 in the connected position are respectively housed in these female housings 115, while male elements 252 in the disconnected position are outside female housings 115. Each male element 252 is provided complementary to its associated female housing 115, in any functional range (to within and functional plane), so as to be housed in this female housing in a complementary manner: by providing the male members 252 and the female housing 115 with complementary cylindrical configurations and centered about their respective axes Y252 and Y115, when received in the female housing, they cooperate with the female housings to align their respective axes Y252 and Y115 and collectively define a tilt axis Y250, which tilt axis Y250 now axially couples with the aligned axes Y252 and Y115. According to a particularly advantageous practical arrangement, the male elements 252 are translatable along their axis Y252, and therefore along the tilting axis Y250, between their connected and disconnected positions, in particular closer to each other when they are moved from their connected to disconnected position, as can be clearly seen by comparing fig. 4 and 5. Furthermore, the connection mechanism 250 also comprises drive means 253, i.e. a left drive means and a right drive means, respectively, which enable manual driving of the male element 252 from its connected position to its disconnected position, these drive means being advantageously configured to be pushed together by the same hand of the user, so as to drive the two male elements together. The connection mechanism 250 may further comprise an elastic member providing an elastic return of the male element 252 from its disconnected position to its connected position, while the male element 252 is elastically held in its connected position as long as the user does not exert a manual pressure on the driving member 253 overcoming the elastic resistance of the above elastic member to drive the male element 252 from its connected position to its disconnected position.

Further details regarding the above-described embodiment of the attachment mechanism 250 are given in WO 2018/050303, to which the reader is referred.

In fact, the bearing 251 supports and guides the movement of the above-mentioned elastic means, the driving means 253 and the male element 252: more generally, regardless of the embodiment of the connection mechanism 250, particularly for reliability and performance reasons, the load bearing part 251 is advantageously arranged to support and guide the movement of the rest of the connection mechanism. The bearing portions 251 may also be configured to cooperate by matching the shape of the particular structure of the rear portion 112 of the frame 110 to facilitate relative positioning between the frame 110 and the frame 210 during connection of the frame 110 and the frame 210 by the connection mechanism 250, particularly the positioning of the female housing 115 relative to these male elements 252 in the disconnected position before the male elements are moved to their connected position.

The accessory 200 also includes a control mechanism 270, the control mechanism 270 enabling control of the roll prevention of the double stroller 1. As best shown in fig. 3-8, a control mechanism 270 is carried by the front portion 211 of the frame 210, and when the accessory 200 is coupled to the stroller 100 by the coupling mechanism 250, the control mechanism 270 is configured to mechanically cooperate with the roll inhibiting system 160 of the stroller 100 to control the roll inhibiting system 160. To actuate the control mechanism 270, the accessory 200 further comprises an actuation member 280, as shown in fig. 2 and 3, which actuation member 280 is carried by the rear portion 212 of the frame 210 so as to be able to be actuated by a user standing behind the double stroller 1. The embodiment of the actuation member 280 is not limiting as the actuation may be actuated by a user, for example by foot or hand: in the exemplary embodiment considered here, the actuation member 280 comprises or even consists of a pedal 281. As best shown in fig. 2, the pedals 281 are movably mounted, for example, diagonally on a cross member (cross) 213 of the rear portion 212 of the frame 210, the cross member 213 extending between the wheels 230G and 230D. In all cases, the actuation member 280 is coupled to the control mechanism 270 in order to actuate the latter.

Indeed, in order to reliably and permanently transmit the actuation of the actuation member 280 to the control mechanism 270, the fitting 200 comprises a mechanical transmission system 290, which mechanical transmission system 290 mechanically couples the actuation member 280 and the control mechanism 270, so as to enable actuation of the control mechanism 270 when a user acts on the actuation member 280. The drive train 290 is carried by the frame 210 while extending between the front 211 and rear 212 portions of the frame 210.

According to a particularly practical and effective embodiment, realized in the example shown in the figures, the control mechanism 270 mainly comprises two components movable with respect to each other, namely a support 271 and a coupling element 272.

The support 271 is coupled to the front 211 of the frame 210, tilting freely about the tilting axis Y250. In particular, the support 271 is advantageously carried by the connection mechanism 250, being mounted on the carrying portion 251 while being tilted about a tilting axis Y250, as clearly shown in fig. 3 to 5. Thus, when the accessory 200 is disconnected from the stroller 100, the support 271 can tilt freely about the tilt axis Y250 relative to the frame 210, the stroke of which can be limited by certain mechanical stops. When the accessory 200 is connected to the stroller 100 by the connection mechanism 250, due to the configuration of the support 271, the support 271 is designed to be rotatably connected to the rear portion 112 of the frame 110 about the tilt axis Y250 such that the support 271 partially surrounds the rear portion 112 of the frame 110, as shown in fig. 2 and schematically illustrated in fig. 6 to 8. It will be appreciated that when the accessory 200 is connected to the stroller 100 by the connection mechanism 250, as described above, the frame 110 and the frame 210 are free to tilt relative to each other about the tilt axis Y250 while the support 271, which is in surrounding contact with the rear portion 112 of the frame 110, remains to follow the movement of the frame 110 relative to the frame 210, as seen in a comparison between fig. 6 and 7.

For reasons of mechanical stability in particular, the support 271 may, as in the example shown in the figures, comprise a left branch 273G and a right branch 273D, and a lever 274, more particularly visible in fig. 12, which lever 274 fixedly couples the left branch 273G and the right branch 273D to each other, in particular while extending parallel to the tilting axis Y250. When the fitting 200 is connected to the stroller 100 by the connection mechanism 250, the left and right branches 273G and 273D are disposed to abut against the left and right posts 114G and 114D, respectively, of the rear portion 112 of the frame 110: as best shown in fig. 2 and 6-8, each of these branches 273G and 273D is configured to partially surround a respective pillar 114G, 114D of the rear portion 112 of the frame 110, so as to be rotationally connected to the rear portion 112 of the frame 110 about the tilt axis Y250.

The coupling member 272is movably carried by the support 271 and is coupled to the actuating member 280, in particular by a mechanical transmission system 290, so that the actuating member 280 can drive the movement of the coupling member 272. According to a practical, economical and reliable embodiment, mechanical transmission 290 comprises or even consists of a cable 291 directly coupling actuating member 280 and coupling member 272 to each other, so that actuating member 280 drives the movement of coupling member 272 with respect to support 271 by the tightening/releasing of cable 291. These cables 291 are partially visible in fig. 1 to 8.

In addition, the coupling member 272is adapted to be connected in motion with the actuation portion 161 of the roll inhibiting system 160 of the stroller 100, particularly by being shape-matched: in the exemplary embodiment shown in the figures, the coupling member 272 thus comprises or even consists of a yoke 275, the yoke 275 covering the pedals 162 of the actuator 161 and being connected in motion with the actuator 161 by form-fitting relative to each other when the fitting 200 is connected to the stroller 100. Due to the matching of the shape between the coupling member 272 and the actuating portion 161, the coupling member 272 and the actuating portion 161 are connected in motion (coupled member 272is connected in motion with the actuating portion 161) since the accessory 200 is connected to the stroller 100 via the connecting mechanism 250, in particular without adding additional fastening means between them. In all cases, by connecting itself to the actuator 161 in motion, the coupling member 272 engages the roll inhibiting system 160 of the stroller 100 when the accessory 200 is connected to the stroller 100, thereby controlling the roll inhibiting system 160.

Indeed, it should be understood that the degree of movement between the coupling member 272 and the support 271 depends on the embodiment of the roll inhibiting system 160. In the exemplary embodiment shown in the figures, therefore, the reversible actuation of the blocking mechanism 163 of the rolling blocking system 160 is done by tilting the actuator 161, in particular the pedal 162, about an axis parallel to the tilting axis Y250: thus, when the fitting 200 is connected to the baby stroller 100 by the connection mechanism 250, the coupling member 272, and in particular the yoke 275, can be arranged tilted with respect to the support 271 about a tilt axis which is also parallel to the tilt axis Y250 and aligned with the tilt axis of the actuator 161. More generally, the control mechanism 270, and in particular the coupling member 272 thereof, is designed to mechanically engage, and in particular engage, the appropriate portion of the roll inhibiting system 160, such as the actuating portion 161, of the stroller 100 when the stroller 100 is connected to the accessory 200.

By considering the description of the double stroller 1 so far, it will be appreciated that in addition to the modifications of the stroller 100 that allow for the connection between the double stroller 1 and the accessory 200, the stroller 100 may generally fall into a known existing single stroller, i.e., a stroller having only a single fixed position. In particular, while stroller 100 occupies the front region of double stroller 1, stroller 100 maintains a particular improvement during use by, on the one hand, pushing its frame 110 directly manually at push member 150 by rear portion 112 of double stroller 1; the roll inhibiting system 160 is on the other hand indirectly controlled by a control mechanism 270 that can be actuated by actuating an actuating member 280. In the case of the accessory 200, which is located in the rear region of the double stroller 1, it is unique compared to existing single strollers, i.e. on the one hand, behind its frame 210, its wheels 230G and 230D are not fixed but pivoting; on the other hand, at the front of the frame 210 thereof, there is no wheel or the like for rolling on the ground, which is advantageous for the link mechanism 250 and the control mechanism 270. In this case, in addition to these features, the accessory 200 has at least visual and even aesthetic similarities to a single-person stroller, particularly with respect to its frame 210, its receiving member 220 and its pushing member 240, which makes the user intuitive of the gripping and use of the accessory 200. It should also be understood that when stroller 100 and accessory 200 are disconnected from each other, stroller 100 remains independent of the usability of accessory 200 as a single stroller, and accessory 200 itself is no longer functionally usable for transporting a child.

The safety and maneuverability of such a double stroller 1 is significant during use, i.e. during use of the double stroller 1, in particular when the double stroller 1 has to be stopped, and when changing direction or when passing obstacles, such as sidewalks, as described in detail below.

Thus, when a user using the double stroller 1 and standing behind it wishes to stop it, the user actuates the actuation member 280, for example by acting on the pedals 281 with the feet. By means of the mechanical transmission system 290, in particular by means of the cable 291, such an actuation is transmitted, for example, to the control mechanism 270, in particular to the coupling element 272 thereof, which coupling element 272is thus moved, for example, from its position in fig. 6 to its position in fig. 8. The coupling member 272 then actuates the actuation portion 161 to actuate the roll inhibiting system 160. More generally, control mechanism 270 then controls roll prevention system 160 such that the latter prevents the rolling of rear wheels 140G and 140D of stroller 100, thereby preventing the rolling of double stroller 1. With the reversibility of the roll inhibiting system 160 and the control mechanism 270, the user may then actuate the actuation member 280 to release the rear wheels 140G and 140D, thereby allowing rolling of the stroller 1. Thus, the stopping and releasing of the double stroller 1 is done by the user, and the user stands behind the double stroller 1, which is intuitive and safe. The roll prevention of the double stroller 1 is particularly effective regardless of the loading of the double stroller, i.e., regardless of the actual presence and respective weights of the two children respectively housed in the accessory 200 and the stroller 100, since it is the "middle" wheels of the double stroller 1, i.e., the rear wheels 140G and 140D of the stroller 100, that are prevented by the interference of the roll prevention system 160, since the weight carried by the double stroller is always carried mainly by these "middle" wheels. In fact, regardless of the loading condition, most of the load generated by the child being transported by stroller 100 is transferred directly from rear portion 112 of frame 110 to wheels 140G and 140D, while most of the load generated by the child being transported by accessory 200 is transferred to rear portion 112 of frame 110 sequentially through front portion 211 of frame 210 and coupling mechanism 250.

As for the maneuverability of the double stroller 1 during the change of the advancing direction, it is possible to refer to fig. 9 and 10 effectively. In fact, fig. 9 and 10 show the behavior of the double stroller 1 when the same user standing behind the accessory 200 manually pushes the push part 240 to turn the double stroller 1 to the left, compared to fig. 1 and 2, in which the double stroller 1 advances in a straight line forward when the user pushes the push part 240 in a corresponding manner while pushing the double stroller 1 forward while standing behind the accessory 200. As best shown in fig. 9 and 10, the pushing force applied by the user causes the front wheels 130G and 130D to rotate to the left about their pivot axes Z130G and Z130D, while the wheels 230G and 230D of the fitting 200 pivot to the right about their pivot axes Z230G and Z230D. The opposite direction that the front wheels 130G and 130D and the wheels 230G and 230D respectively take is produced by the differential effect produced by the fixed rear wheels 140G and 140D. In other words, with respect to the front wheels of the stroller 100 and the wheels of the accessory 200, the "middle" wheels of the double stroller 100, i.e., the rear wheels 140G and 140D of the stroller 100, form a fixed differential drive having a pivoting effect in the horizontal plane in a manner that allows the user to maneuver the double stroller 1 while changing direction substantially the same as the single stroller with pivoting front wheels and fixed rear wheels. The differential effect of the "middle" wheels described above, i.e. wheels 140G and wheels 140D, is even more of a concern, since these are the "middle" wheels that carry most of the weight of the two children being transported by the double stroller 1, as explained above.

The maneuverability of the double stroller 1 during a change of direction is advantageously enhanced by the provision that the path V230 between the wheels 230G and 230D of the accessory 200 is greater than the path V140 between the rear wheels 140G and 140D of the stroller 100. The turning of the wheels 230G and 230D of the accessory 200 becomes particularly easy.

With respect to the maneuverability of the double stroller 1 when crossing obstacles extending transversely to its fore-aft direction (e.g., sidewalks), the connection mechanism 250 allows the longitudinal behavior of the double stroller 1 to resemble a crawler. Indeed, if one carefully looks at an exemplary use of the double stroller 1 moving up a sidewalk, the user first positions the stroller 100 next to or against the sidewalk with the natural orientation fore-aft axis X110 being transverse or even perpendicular to the sidewalk. The user holds the push member 240 without movement with one hand (out moving go of the pushing member 240with one of his hands), and manually pushes the push member 150 with the other hand by letting him/her locate beside the accessory 200, whether the left side or the right side of the accessory 200, if necessary: the pushing member 150 is manipulated to tilt the rear portion 112 of the frame 110 slightly rearwardly and downwardly, and the front portion 111 of the frame tilts rearwardly and upwardly in a corresponding manner, which causes the front wheels 130G and 130D to disengage from the ground, while the rear wheels 140G and 140D of the stroller 100 and the wheels 230G and 230D of the accessory 200 remain in contact with the ground as the frame 110 is free to tilt relative to the frame 210 about a tilt axis Y250 coincident with the connecting mechanism 250. The user can then move the double stroller 1 with one and/or the other hand slightly forward until the front wheels 130G and 130D are above the sidewalk. The user still holds pushing member 240 in one hand and releases pushing member 150 so that front wheels 130G and 130D re-contact the ground at the height of the sidewalk. If applicable, the user may return fully to the rear of fitting 200, and may then move double stroller 1 forward until rear wheels 140G and 140D of stroller 100 reach near or against the sidewalk: by this action on the pushing member 240, the user tilts the rear portion 212 of the frame 210 downward and rearward until the front portion 211 of the frame 210 is slightly raised. By transferring motion through the linkage 250, the rear portion 112 of the frame 110 is raised in a corresponding manner, thereby allowing the rear wheels 140G and 140D of the stroller 100 to traverse the sidewalk. Finally, after moving double stroller 1 slightly forward again until wheels 230G and 230D of fitting 200 are brought close to or even in contact with the sidewalk, the user, if necessary, by slightly lifting pushing member 240, passes these wheels through the sidewalk, frame 210 is thus free to tilt about tilt axis Y250 with respect to frame 110, which, by its wheels 130G, wheels 130D, wheels 140G and wheels 140D, is located on the high level of the sidewalk.

More generally, it should be understood that the free-leaning articulation between frame 110 and frame 210 allows the double stroller 1 to roll comfortably on irregular ground surfaces, as well as to easily pass up and down over any lateral obstacles, since depending on the height and cross direction of the obstacles, the user can act on one and/or the other of the push members 150 and 240 while always keeping one hand on the push members 240 to ensure complete safety. At the same time, the free articulation between the frame 110 and the frame 210 is regulated to some extent by the control mechanism 270, in particular by its support 271 which is rotatably connected to the rear portion 112 of the frame 110 about the tilting axis Y250, so that the control mechanism 270 remains operative regardless of the actual tilting position between the frame 110 and the frame 210.

Finally, Figs. 11-13 show the accessory 200, with the accessory 200 disconnected from the stroller 100 and folded from the use configuration shown in the previous figures to the storage configuration. Thus, according to this advantageous alternative aspect, once the frame 210 of the accessory 200 is disconnected from the frame 110 of the stroller 100, the frame 210 of the accessory 200 can be folded between the use configuration of fig. 1 to 10 and the storage configuration of fig. 11 to 13; in the use configuration of fig. 1-10, the accessory 200 may be connected to the stroller 100 by the connection mechanism 250 as described above, while the storage configuration of fig. 11-13 is more compact than the use configuration. Once frame 210 is in this storage configuration, accessory 200 may be easily transported by a user of stroller 100: in practice, a user of the stroller 100 walking behind the stroller 100 and pushing the stroller can hold or carry the folded accessory 200 with his or her hand or shoulder using a strap. In a variation, the folded accessory 200 may be attached directly to the stroller 100 using a special arrangement.

According to an advantageous optional refinement, illustrated more particularly by fig. 14 to 18, the accessory 200 further comprises a blocking mechanism 300, the blocking mechanism 300 being able to block the wheels 230G and 230D of the accessory.

As shown in fig. 14 to 18, the blocking mechanism 300 is disposed in the rear portion 212 of the frame 210 while being movably carried by the rear portion 212 of the frame 210. The blocking mechanism 300 is designed to reversibly interfere with at least one of the wheels 230G and 230D, or even advantageously with both wheels 230G and 230D, so as to block the rolling of these wheels, i.e. the rotation of these wheels about their rotation axes X230G, X230D, irrespective of the rotation of these wheels about their pivoting axes Z230G, Z230D. To this end, the blocking mechanism 300 comprises elements associated with each wheel 230G and 230D: in the following, only one embodiment of the improvements associated with the right wheel 230D will be described in detail, with the understanding that these improvements are symmetrically convertible to the left wheel 230G.

Thus, in the embodiment shown in fig. 14 to 18, for the right wheel 230D, the blocking mechanism 300 comprises a blocking element 301, which blocking element 301 is arranged movable with respect to the frame 210 so as to be able to reversibly interfere with the wheel 230D, so as to block its rolling. More specifically, the blocking element 301D is both centered on the pivot axis Z230D and movable along this pivot axis Z230D. To this end, according to a practical embodiment, the blocking element 301D has an elongated shape along the pivot axis Z230D, for example forming a lever or similar elongated portion. In all cases, the blocking element 301D comprises two ends opposite each other along the pivot axis Z230D, namely an end 302D and an end 303D facing the wheel 230D.

The movement of the blocking element 301D along the pivot axis Z230D is arranged between the disengaged position shown in fig. 14 and 15 and the engaged position shown in fig. 16 to 18. In the disengaged position, the blocking element 301D is disengaged from the wheel 230D to enable the wheel to roll freely. In the engaged position, the blocking element 301D, and more particularly the end 303D thereof, interferes with the tread 231D of the wheel 230D, thus blocking the rolling of this wheel 230D. In fact, the tread 231D of the wheel 230D has a certain flexibility, in particular in comparison with the hub of the wheel, allowing the ends 303D of the blocking elements 301D to locally press the tread 231D by sinking into the tread 231D, thus bearing the tread flexible deformation. The characteristics of the respective materials of the blocking element 301D and the tread 231D are not limited by the invention, as long as their interference ensures an effective rolling prevention of the wheel 230D when the blocking element 301D is in the engaged position. According to one embodiment of the blocking effect, which reinforces such interference, the end 303D of the blocking element 301D is provided with a bearing surface 304D which, when the blocking element 301D is in the engaged position, abuts against the tread 231D along the pivot axis Z230D, locally sinking in the tread 231D, as shown in fig. 16 to 18.

In all cases, since the movement of the blocking element 301D is centred on the pivot axis Z230D, the blocking element 301D in the engaged position is effective in preventing the rolling of the wheel 230D, whatever the angular position of the wheel 230D about its pivot axis Z230D, as can be clearly seen by comparing fig. 16 and 17. In other words, the blocking element 301D in the engaged position blocks the rotation of the wheel 230D about its rotation axis X230D by local interference with the tread 231D of the wheel, irrespective of the direction of the wheel 230D about the pivot axis Z230D.

The modification of the fitting 200 to allow the blocking element 301D to be both movable and centered on the pivot axis Z230D is not limiting to the invention. According to a practical and reliable embodiment implemented in the embodiment shown in the figures, these improvements relate to a holder 310D associated with the wheel 230D. The retainer 310D movably couples the wheel 230D to the frame 210, more specifically to the right portion of the rear portion 212 of the frame, and in particular to the assembly housing 214D, the assembly housing 214D ensuring that the right end of the cross member 213 is fixedly assembled with the rest of the rear portion 212 of the frame 210. In the exemplary embodiment illustrated here, and as best shown in fig. 14 to 18, the holder 310D comprises a fork 311D, at the base of which fork 311D a wheel 230D is mounted that rotates about an axis of rotation X230D, the upper part of this wheel 230D being arranged between the branches of fork 311D. The holder 310D further includes a tubular insert 312D, the tubular insert 312D being fixed to the fork 311D while extending upward from the apex of the fork 311D and being substantially centered on the pivot axis Z230D. The tubular insert 312D is mounted freely pivotally about pivot axis Z230D on the right side portion of the rear portion 212 of the frame 210, more specifically, inside the assembly housing 214D, with one or more bearings interposed radially between the tubular insert 312D and the assembly housing 214D relative to pivot axis Z230D. Furthermore, the tubular insert 312D is mounted fixed in translation with respect to the frame 210 along the pivot axis Z230D, in particular inside the assembly housing 214D, for example with a circlip interposed between them. More generally, the structure of the holder 310D described in detail above is not limited as long as the holder 310D is mounted on the rear portion 212 of the frame 210 pivoting about the pivot axis Z230D, and the wheel 230D is rotatably mounted on the holder 310D about its rotational axis X230D. Further, it should be remembered that what has just been described for the right wheel 230D can be transferred to the left wheel 230G: thus, the left wheel 230G may be associated with a holder 310G similar to the holder 310D, particularly visible in fig. 2. In all cases, as clearly shown in fig. 14 to 18, the blocking element 301D is advantageously guided translationally by the holder 310D along the axis Z230D. To this end, in the exemplary embodiment shown here, the blocking element 301D is accommodated in a fitting manner and slides freely within the tubular insert 312D of the holder 310D.

To control the movement of blocking element 301D between the disengaged and engaged positions, blocking mechanism 300 includes spring 305D and actuator 306.

The spring 305D acts on the blocking element 301D by pushing the blocking element 301D back to the disengaged position. In the exemplary embodiment shown in the figures, the spring 305D is arranged between the blocking element 301D and the holder 310D in the direction of the pivot axis Z230D, while being arranged around the blocking element 301D and housed inside the tubular insert 312D.

The actuator 306 is movably mounted on the carriage 210 so as to be able to drive the blocking element 301D from the disengaged position to the engaged position while blocking the force of the spring 305D. In the exemplary embodiment shown in the figures, the actuator 306 resembles a rotating shaft and has an elongated shape centered on an actuation axis Y306, the actuation axis Y306 extending substantially perpendicular to the pivot axis Z230G and the pivot axis Z230D, and the actuator 306 is rotatable about the actuation axis Y230G. The actuator 306 is provided, at its end turned to the pivot axis Z230D, with an inclined surface 307D designed to cooperate by contact with the blocking element 301D, more specifically with the end 302D of the blocking element 301D: as clearly shown in fig. 14 to 18, the end 302D of the blocking element 301D is provided with a bearing surface 308D, which bearing surface 308D abuts against a ramp 307D of the actuator 306 along the pivot axis Z230D under the action of the spring 305D. The contour of the ramp 307D is designed to push the blocking element 301D along the pivot axis Z230D towards the wheel 230D when the actuator 306 is rotated about the actuation axis Y306 from a first angular position associated with the disengaged position, as shown in fig. 14, to a second position associated with the engaged position, as shown in fig. 16 to 18. Of course, it should be understood that the nature, and in particular the profile, of a dedicated surface of actuator 306, such as ramp 307D, is not limiting to the invention, but rather depends directly on the nature of the movement of actuator 306 relative to frame 210, which dedicated surface cooperates through contact with blocking element 301D to drive blocking element 301D from the disengaged position to the engaged position.

In all cases, the actuator 306 is advantageously provided to jointly drive the blocking element 301D associated with the right wheel 230D and the blocking element associated with the left wheel 230G, while blocking the force of the springs respectively associated with these two blocking elements, to convert them from their disengaged position to their engaged position. Thus, in the exemplary embodiment shown in the figures, the actuator 306 extends from the blocking element 301D to the blocking element associated with the left wheel 230G.

Regardless of the embodiment of the actuator 306, the actuator 306 is connected in motion to the actuation member 280 of the fitting 200 such that during actuation of the actuation member 280 to actuate the control mechanism 270 as described above, the actuation member 280 collectively actuates the blocking mechanism 300 while moving the actuator 306 such that it drives the blocking element from its disengaged position to its engaged position. More generally, the fitting 200 is designed such that the actuation member 280 is coupled to the blocking mechanism 300 so as to actuate it in conjunction with the actuation of the control mechanism 270: it will be appreciated that actuation of the actuation member 280 by a user standing behind the double stroller 1 actuates, on the one hand, the roll inhibiting system 160 of the stroller 1 via the mechanical transmission system 290 and the control mechanism 270, while, on the other hand, the inhibiting mechanism 300 is actuated via the connection between the actuation member 280 and the actuator 306. In fact, the nature of the connection between the actuation member 280 and the actuator 306 depends on the characteristics of the latter. In the exemplary embodiment shown in the figures, by providing that the actuator 306 is mounted in the cross member 213 of the rear portion 212 of the frame 10 and is guided in rotation about an actuation axis Y306, as described above, and that the pedal 281 is mounted on the cross member 213 obliquely about this actuation axis Y306, the pedal 281 of the actuation member 280 is advantageously fixed firmly to the actuator 306, in particular to the operative part thereof, as clearly shown in fig. 15 to 18.

Thus, when the double stroller 1 is in use and a user standing behind it wishes to stop it, the user actuates the actuation member 280, for example by acting on the pedals 281 with the feet. This actuation collectively results in the rear wheels 140G and 140D of the stroller 100 being rollingly stopped by the roll stopping system 160 controlled by the control mechanism 270, on the one hand, and the wheels 230G and 230D of the accessory 200 being stopped by the stopping mechanism 300, on the other hand. With the reversibility of the roll inhibiting system 160 and control mechanism 270, on the one hand, and the inhibiting mechanism 300, on the other hand, the user may then actuate the actuation member 280 to collectively release the rear wheels 140G and 140D of the stroller 100 and the wheels 230G and 230D of the accessory 200, thereby allowing rolling of the stroller 1. As mentioned above, the rolling resistance of the double stroller 1, substantially ensured by the resistance of the wheels 140G and 140D, is thus advantageously enhanced in the event of resistance of the wheels 230G and 230D, so as to enhance the stopping of the double stroller 1, in particular when the double stroller 1 is in a particular use situation, such as a very steep or uneven slope.

Also, the various arrangements and variations of the stroller 100 and accessory 200 described thus far are contemplated:

instead of having two front wheels, the stroller 100 can have only one front wheel disposed on the front-to-rear axis X110; similarly, more than two front wheels may be provided for the stroller 100, more than two rear wheels may be provided for the stroller 100, and more than two wheels may be provided for the accessory 200; and/or

Each wheel mentioned so far may be replaced by a pair of twin wheels or twin caster wheels, or a train of more twin wheels.