阅读说明：本技术 机动嵌入式聚光灯 (Motor-driven embedded spotlight ) 是由 L·马格纳吉 A·塔契 于 2019-03-12 设计创作，主要内容包括：一种嵌入式聚光灯包括：框架(10；110)；半球形帽(40),所述半球形帽连接至所述框架并且被布置成围绕所述帽的至少一个纵向旋转轴线(X-X)相对于所述框架旋转；用于发射光束的装置,布置于所述帽(40)内部并且与所述帽(40)成一体；以及用于围绕所述纵向轴线(X-X)旋转地驱动所述帽(40)的至少一个装置(50)；所述嵌入式聚光灯包括用于安装所述帽(40)的装置(42；43a),所述装置沿着所述帽(40)的底部、外部环形边缘(41)布置并且被设计成围绕所述纵向轴线(X-X)旋转,所述安装装置(42)切向地布置至所述帽的环形边缘(41)。(An embedded spotlight comprising: a frame (10; 110); a hemispherical cap (40) connected to the frame and arranged to rotate relative to the frame about at least one longitudinal axis of rotation (X-X) of the cap; -means for emitting a light beam, arranged inside said cap (40) and integral with said cap (40); and at least one device (50) for driving the cap (40) in rotation about the longitudinal axis (X-X); the built-in spotlight comprises means (42; 43a) for mounting the cap (40), arranged along the bottom, outer annular edge (41) of the cap (40) and designed to rotate about the longitudinal axis (X-X), the mounting means (42) being arranged tangentially to the annular edge (41) of the cap.)

1. An embedded spotlight, comprising:

a frame (10; 110); a substantially hemispherical cap (40) connected to the frame and arranged to rotate relative to the frame about at least one longitudinal rotation axis (X-X) of the cap; -means for emitting a light beam, arranged inside said cap (40) and integral with said cap (40); and at least one drive means (50) for driving the cap (40) in rotation about the longitudinal rotation axis (X-X);

characterized in that, embedded spotlight includes:

-mounting means (42; 43a) for mounting the cap (40), said mounting means (42; 43a) being arranged along a bottom, outer annular edge (41) of the cap (40) and being designed to rotate about the longitudinal rotation axis (X-X), said mounting means (42; 43a) being arranged tangentially to the annular edge (41) of the cap.

2. A spotlight according to claim 1, characterized in that the spotlight comprises a pin (13), which pin (13) extends along the longitudinal axis of rotation (X-X) and is designed to cooperate with the cap mounting means (42) in order to allow a rotation of the cap around the longitudinal axis of rotation (X-X).

3. A spotlight according to claim 1 or 2, characterized in that the frame (10) is in the form of a bridge comprising two vertical uprights (10a, 10b) connected to opposite ends of a crosspiece (10c), one of the two free ends of which contains the axis of rotation (X-X).

4. A spotlight according to claim 3, characterized in that the means (20) for rotating the frame and thereby the cap (40) about a second vertical axis of rotation (Z-Z) are arranged in a substantially middle position of the crosspiece (10 c).

5. A spotlight according to claim 3 or 4, characterized in that the free end of the vertical upright of the bridge (10) containing the longitudinal axis of rotation (X-X) has a fork (12), the arms (12a) of the fork (12) that are opposite each other in the longitudinal direction (X-X) having respective through holes with an axis parallel to the longitudinal axis of rotation (X-X) and suitable for inserting the pin (13).

6. The spotlight according to one of the claims 1 to 5, characterized in that the drive means (50) for rotationally driving the cap (40) comprise a motor (51) fixed to the frame (10), the shaft (51a) of which extends in a direction substantially parallel to the longitudinal axis of rotation and is coaxially connected to a transmission means (60; 160; 260), which transmission means (60; 160; 260) is arranged between the motor shaft (51a) and the mounting means (42; 43a) for mounting the cap.

7. A spotlight according to claim 6, characterized in that the transmission (60) comprises a first pulley (61) connected to the motor shaft; a second pulley (62) mounted coaxially on said longitudinal rotation axis (X-X), in particular on the pin (13); an endless belt (63) for transmitting motion, the endless belt (63) being arranged closed over two pulleys; and an optional belt tensioner (63 a).

8. A spotlight according to claim 6, characterized in that the transmission (160) for transmitting the movement from the motor (51) to the cap (40) comprises a link (161), one end of the link (161) is mounted on a shaft (51a) of the motor (50) and the other end of the link (161) is pivotally mounted on a first end of a rigid lever (162), the other end of the rigid rod (162) is pivotally coupled to an arm (143c), the arm (143c) extending from a bracket (43a) of the mounting/coupling device towards the inside of the cap (40), said bracket being fixed to an annular edge of said cap (40) on said longitudinal rotation axis (X-X), in particular on a pin (13), the pin (13) forms an axis of rotation about the longitudinal axis of rotation (X-X).

9. A spotlight according to claim 6, characterised in that the transmission (260) for transmitting the movement from the motor (50) to the cap (40) comprises a first toothed rack (261), one end of the first toothed rack (261) being pivotably mounted on the frame (10) and the other end of the first toothed rack (261) being free; a second rack (262), said second rack (262) being arranged opposite to said first rack, and a first end of said second rack (262) being pivotably mounted on an arm (143c), said arm (143c) extending from a bracket (43a) of said mounting/coupling means towards the inside of said cap (40), said bracket being fixed to an annular edge of said cap (40), and the other end of said second rack (262) being free, the two free ends of said first and second racks being arranged inside a gear arrangement (263) connected to a shaft (51a) of said motor (50).

10. The spotlight according to one of claims 2 to 9, characterized in that a torsion spring (71) is arranged between the arms (12a) of the fork (12), which torsion spring (71) is mounted on the axis of rotation, in particular on a pin (13), and is designed to exert a preload for balancing the weight of the cap (40).

11. Spotlight according to one of the claims 1-10, characterized in that it comprises means (20; 120) for rotating the frame (10) around a vertical axis of rotation (Z-Z), comprising a motor with a shaft extending from the frame (10) parallel to the vertical axis (Z-Z).

12. The spotlight according to one of the preceding claims, characterized in that it comprises a sliding friction device arranged between the motor shaft and the cap (40) and/or between the means for rotation about the vertical axis and the frame (10).

13. A spotlight according to any of the claims 1-11, characterized in that the spotlight comprises means (100) of the electronic type for receiving commands from a remote control and for rotating the spotlight around the longitudinal axis of rotation (X-X) and/or around a vertical axis of rotation (Z-Z).

14. A spotlight according to claim 7 or 8, characterized in that a belt drive (60) or a rack drive (260) for transmitting motion to the cap (40) is arranged to rotate the cap inwards, preferably through a rotation angle of up to-15 °.

15. A spotlight according to any of the claims 11-14, characterized in that the frame (110) has a first stop surface (11) arranged inside a seat for accommodating the motor (12), the motor (12) having a second stop surface (112) angularly spaced from the first stop surface (111) in a plane (X-Y).

Technical Field

The invention relates to a motorized embedded spotlight.

Background

Various types of ceiling-mounted motorized embedded spotlights that can be operated by a remote control are known.

This feature is particularly useful in commercial buildings, museums or hospitals where frequent changes in ambient and/or lighting conditions require adaptation of the direction of the light beam.

A disadvantage of the illumination produced by the known embedded spotlights is the limited emission angle of the light beam; as shown in fig. 1A, when the light beam is directed more horizontally, the light beam is intercepted by the mounting frame of the spot light, which is not acceptable for achieving a high quality lighting effect, since it reduces the possibility of varying the lighting of objects arranged, for example, on a wall placed laterally with respect to the ceiling in which the spot light is mounted embedded.

Disclosure of Invention

The technical problem posed is therefore that of providing a ceiling-mounted embedded spotlight which is able to allow the light beam to be directed through large angles and without obstruction.

Regarding this problem, it is also desirable that an embedded spotlight with the aforementioned features should be identical to the other embedded spotlights when the light is directed vertically, i.e. preferably, any mechanism provided for the orientation of the light beam should not be visible to the user.

It is also required that the spotlight should have a small size, have an easy and cheap production and assembly and be able to be easily mounted at any user location using normal standardized connecting means.

According to the invention, these results are obtained by a spotlight according to the claims.

Drawings

Further details may be obtained from the following description of non-limiting examples of embodiments of the inventive subject matter, which is provided with reference to the accompanying drawings, in which:

FIG. 1A: is a perspective view of a ceiling-mounted embedded spotlight according to the prior art;

FIG. 1B: a view similar to that of fig. 1A for a ceiling-mounted embedded spotlight according to the present invention, wherein the cap is rotated outwards through 90 °;

FIG. 2: is an exploded perspective view of a first embodiment of a spotlight according to the invention;

FIG. 3: is a perspective view of the spotlight according to fig. 2 without the external structure assembled;

FIG. 4A: is a section through a spotlight according to fig. 2, wherein the cap is turned inwards;

FIG. 4B: is a section through the spotlight according to fig. 2 during the outward rotation of the cap;

FIG. 4C: is a section through the spotlight according to fig. 2, 3, wherein the cap is turned 90 ° outwards;

FIG. 5: is an exploded perspective view of a second embodiment of a spotlight according to the invention;

FIG. 6: is a perspective view of the spotlight according to fig. 5 without the external structure assembled;

FIG. 7A: is a section through a spotlight according to fig. 5, wherein the cap is turned inwards;

FIG. 7B: is a section through a spotlight according to fig. 5, wherein the cap is rotated outwards;

FIG. 7C: is a section through the spotlight according to fig. 5, wherein the cap is turned 90 ° outwards;

FIG. 8: is an exploded perspective view of a third embodiment of a spotlight according to the invention;

FIG. 9: is a perspective view of the spotlight according to fig. 8 without the external structure assembled;

FIG. 10A: is a section through a spotlight according to fig. 8, wherein the cap is turned inwards;

FIG. 10B: is a section through a spotlight according to fig. 8, wherein the cap is turned 90 ° outwards;

FIG. 11: is a perspective view of a spotlight according to the invention, wherein the cap is turned inwards through an angle of 15 °; and

FIG. 12: is a perspective view of a variant of the embodiment of the assembly consisting of a frame and a motor for rotation about the axis Z-Z.

For greater clarity, details which are conventional per se, such as electrical lines and fixing elements, have been excluded from all the figures.

Detailed Description

As shown in fig. 2, for convenience of description only and in no limiting sense, three axes have been assumed, namely in the longitudinal direction X-X corresponding to the depth dimension of the spotlight; along a transverse direction Y-Y corresponding to the width of the spotlight; and a vertical height direction Z-Z orthogonal to the other two directions.

For ease of description and with reference to the orientation shown in the drawings, the longitudinal axis X-X is arranged to coincide with the first longitudinal axis of rotation and the axis Z-Z is arranged to coincide with the second vertical axis of rotation.

As shown in the figures, a first embodiment of a motorized embedded spotlight according to the invention mainly comprises:

a frame 10 in the form of a bridge, said frame 10 comprising two vertical uprights 10a, 10b, said vertical uprights 10a, 10b being connected at opposite top ends by a longitudinal crosspiece 10 c;

the free end of one of the two uprights-10 b in fig. 2-of the bridge 10 has a fork 12, the opposite arm of said fork 12 in the longitudinal direction X-X having a respective through hole 12 b; said first axis of rotation X-X is defined across said two holes and is shown in the example in the form of a longitudinal pin 13, said pin 13 being intended to be locked to the opposite arm 12a of the fork 12 once assembly is completed, as will become clearer below;

a substantially hemispherical cap 40, said cap 40 being internally fitted with means for emitting a light beam, such as a lamp, LED and the like, in a conventional and therefore not described in detail manner; the hemispherical cap 40 has, along its bottom, outer annular edge 41, means 42, said means 42 being designed to cooperate with the pin 13 so as to allow the cap to rotate about a first longitudinal axis of rotation; said means 42 are preferably tangentially arranged to the annular edge 41 of the cap; in the preferred embodiment shown, the device 42 comprises a fork-shaped support 43, the arms 43a of said fork-shaped support 43 having respective longitudinal axis holes 43b formed therein, said longitudinal axis holes 43b being designed to allow the insertion of the pins 13;

Means 50 for driving in rotation the cap 40, comprising:

motor 51, said motor 51 being fixed to bridge 10, preferably in the junction area between the uprights and crosspiece, for example by gussets 52;

the shaft 51a of the motor may extend in a generally longitudinal direction and through the gusset for a portion of its length so as to allow coaxial engagement with the first pulley 61 of the transmission 60;

a device 60 for transmitting the rotary motion of the shaft 51a of the motor 51 to the cap 40, said device 60 preferably comprising said first pulley 61 connected to the motor shaft, and a second pulley 62 which can be mounted coaxially on the pin 13; a belt 63 for transmitting motion is wound annularly around the two pulleys. It is envisaged to add a belt tensioner 63a for adjusting the friction to be applied to the two pulleys, if necessary.

With this configuration, once the assembly of the spotlight is completed, with the motor 50 fixed to the bridge 10 and the bracket 43 of the cap 40 inserted inside the fork 12 so as to coaxially position the respective holes 43b, 12b, the pin 13 is inserted through the second pulley 62 and said hole 12b, so as to lock it in position, for example by means of an end nut designed to cooperate with an associated thread on the pin; the belt is connected and suitably tensioned; at this point, the spotlight is ready to perform a controlled rotational movement of the cap about the first longitudinal axis of rotation X-X, in order to adjust the cap and therefore the light beam from a position completely retracted inside the frame 10 (fig. 4a) into an intermediate position partially on the outside of the frame (fig. 4B); or to a completely outwardly rotated position (fig. 4c) corresponding to a rotation angle around the first axis equal to about 90 °, designed to allow the emission of a substantially horizontal light beam which is not intercepted by obstacles forming part of the spotlight as occurs in the prior art.

According to a preferred embodiment of the spotlight of the present invention, it is envisaged that a torsion spring 71 mounted on the pin 13 is arranged between the arms 12a of the fork 12, so as to exert a preload capable of balancing the weight of the cap in various rotational positions.

Preferably, although not shown, it is envisaged to arrange sliding friction means between the shaft 51a of the motor 51 for performing the rotation about the longitudinal axis X-X and the means for transmitting the movement to the cap 40, said sliding friction means being able to prevent damage to the motor in the event of a forced manual manipulation.

Preferably, the barrier 72 is mounted on the frame 10 and is retained within the frame during use, and is in the form of a means to permit movement of the cap whilst concealing the means for moving the cap from view.

The frame 10 may also have fixed to it an apparatus 100 of the electronic type, said apparatus 100 being connected to the motor 50 (and to the further motor 20, if present) and to the lamp unit 1, said apparatus 100 being able to receive, from a remote control used by the user, a radio signal for performing the opening and closing operations and/or for controlling the rotation, so as to ensure a particularly easy and convenient operation of the spotlight, which, once installed, is generally kept in a position that cannot be easily reached by the user.

Fig. 5 shows a second embodiment of a spotlight according to the invention, which is provided with a different transmission 160 for performing a rotation of the cap around the first horizontal axis of rotation.

In detail (in the figures, maintaining the same reference numerals common to all solutions), in this embodiment it is envisaged:

the means 160 for transmitting the motion from the motor 50 to the cap 40 comprise a link 161, one end of said link 161 being mounted on the shaft 51a of the motor 50 and the other end of said link 161 being pivotably mounted on a first end of a rigid bar 162, the other end of said rigid bar 162 being pivotably coupled with an arm 143c, said arm 143c extending from the bracket 43 towards the inside of the cap 40, said bracket 43 being fixed on a pin 13 to an annular edge of said cap 40 so as to rotate about the longitudinal axis X-X.

As shown in the cross-sections of fig. 7a-7c, the rotation of the link 161 actuated by the shaft 51a of the motor 51 causes a roto-translational movement of the rod 162, bringing the hemispherical cap 40 into the inner position, the intermediate outer position (fig. 7b), and the position rotated outwards through 90 ° as in the previous example (fig. 7 c).

Fig. 8 shows a third embodiment of a spotlight according to the invention, which is provided with different means 260 for transmitting a rotational movement to the cap.

In detail (in the figures, maintaining the same reference numerals common to all solutions), in this embodiment it is envisaged:

the means 260 for transmitting the motion from the motor 50 to the cap 40 comprise a first rack 261, one end of which is pivotably mounted on the bridge 10 and the other end of which is free, and a second rack 262 opposite the first, a first end of which 262 is pivotably coupled to an arm 143c, said arm 143c extending from a bracket 43a fixed to the annular edge of said cap 40 towards the inside of the cap 40, and the other end of which 262 is free.

The two free ends of the first and second rack are arranged inside a gear 263 connected to the shaft of the motor 50; in this way, operation of the motor shaft in either direction causes movement of the two racks and therefore outward/inward rotation of the cap, so that the cap assumes a different angular position as described in the above example and illustrated in fig. 9 only for the position rotated 90 ° outward.

Preferably, the spotlight further comprises a top cover 80, the top cover 80 being substantially cylindrical and designed to cover all the components of the spotlight in order to protect them and to allow a combined movement of the spotlight for retraction.

As shown, the spotlight may also be assembled with a fixture 90, said fixture 90 being designed to allow locking of the assembly in place during installation flush in a false ceiling or the like; these means, which are themselves within the technical knowledge of a person skilled in the art, are shown in the individual figures only and are not described in detail.

Preferably, the spotlight according to the invention has means 20 for rotating the cap 40 about said second vertical axis Z-Z; in a preferred embodiment, said means 20 comprise an electric motor 21, the shaft 21a of which motor 21 is housed inside a through hole 10d passing through the crosspiece 10c in a substantially central position.

The motor 21 may also be associated with sliding friction means arranged between the shaft 21a and the frame 10, in order to prevent damage to the motor in the event of forced manual manoeuvres.

As shown in fig. 11, it is envisaged that the strap means 60 and the rack means 260 for transmitting motion to the cap 40 may be designed to also perform a negative rotation, i.e. an inward rotation, of up to-15 °, for example, which enables the light beam to be oriented also in the opposite direction to the normal use direction with a positive rotation through 90 °.

Fig. 12 shows another embodiment of a frame 110, said frame 110 having a first stop surface 111 arranged inside a seat for housing a motor 20, said motor 20 in turn having a second stop surface 112 angularly spaced from said first surface in a plane X-Y; the arrangement of the two stop surfaces is designed to allow the cap 40 to rotate through 365 ° about the vertical axis Z-Z, so that the cap 40 does not cause an angular zone not covered by the light beam.

It is therefore clear how the orientation of the light beam in the vertical direction can be achieved with a spotlight according to the invention, the light beam being inclined at different angles with respect to the vertical direction up to a horizontal position, which is substantially at 90 ° with respect to the vertical direction and in which the light beam is still intact, without being intercepted by obstacles forming part of the spotlight as occurs in the prior art.

In addition to this, the movement systems have a particular form such that they can be housed inside the spotlight, while remaining invisible from the outside and improving the aesthetic appearance of the assembly.

The friction driver ensures a high safety of the spotlight, which is not easily damaged by improper manual movement.

The fact that the actuator can be operated remotely by means of a remote control also makes the manipulation of the assembly particularly easy and convenient, so that the light beam can be moved into various angular positions as desired.

While the present invention has been described in connection with a number of embodiments and preferred examples of several embodiments, it should be understood that the scope of protection of this patent is to be determined solely by the claims that follow.