阅读说明：本技术 车门停止装置 (Vehicle door stop device ) 是由 小岛侑也 日比和宏 福田贵行 于 2021-01-26 设计创作，主要内容包括：停止装置(40)的滚筒(210)伴随门的开闭动作而向第1旋转方向或者第2旋转方向旋转。该装置(40)的锁定构件(470)移位到锁定位置和开锁位置中的任一位置。该装置(40)的切换机构接受来自滚筒(210)的旋转传递,通过在滚筒(210)的关于第2旋转方向的规定量以上的旋转后进行关于第1旋转方向的旋转的切换动作,每当进行该切换动作时将锁定构件(470)的位置在锁定位置与开锁位置之间切换。在切换机构装入保持机构,该保持机构在滚筒(210)位于从关于第2旋转方向的旋转范围的端部直到进行上述规定量的旋转为止的旋转范围内时,以将锁定构件(470)保持于开锁位置的方式进行动作。(A drum (210) of a stop device (40) rotates in a1 st rotation direction or a2 nd rotation direction in accordance with the opening and closing operation of a door. A locking member (470) of the device (40) is displaced to either of a locking position and an unlocking position. A switching mechanism of the device (40) receives rotation transmission from the drum (210), performs a switching operation of rotation in the 1 st rotation direction after rotation of the drum (210) in the 2 nd rotation direction by a predetermined amount or more, and switches the position of the lock member (470) between a lock position and an unlock position each time the switching operation is performed. The switching mechanism incorporates a holding mechanism that operates to hold the lock member (470) at the unlock position when the drum (210) is located within a rotation range from an end of the rotation range in the 2 nd rotation direction until the predetermined amount of rotation is performed.)

1. A door stop device is characterized by comprising:

a drum that rotates in a1 st rotation direction when a door for opening and closing an opening of a vehicle is opened, and rotates in a2 nd rotation direction opposite to the 1 st rotation direction when the door is closed;

a locking member that is displaceable to any one of a locking position and an unlocking position, the locking member restricting rotation of the drum in a1 st rotational direction and permitting rotation of the drum in a2 nd rotational direction in the locking position, and permitting rotation of the drum in both the 1 st rotational direction and the 2 nd rotational direction in the unlocking position; and

a switching mechanism that switches the position of the lock member from the unlock position to the lock position by performing a switching operation of rotation of the drum in a1 st rotation direction after rotation of the drum in a2 nd rotation direction,

the switching mechanism is a mechanism that operates upon receiving rotation transmission from the drum, and is configured to: the lock member is displaced to the unlock position in accordance with rotation of the drum by a predetermined amount or more in a2 nd rotation direction, and the lock member is alternately held at the unlock position and displaced to the lock position every time the drum is switched from the 2 nd rotation direction to the 1 st rotation direction, and the lock member is rotated in the unlock position and the lock member is rotated in the lock position

The switching mechanism incorporates a holding mechanism that operates to hold the lock member at the unlock position when the drum is located within a rotation range from an end of a rotation range in a2 nd rotation direction to a1 st rotation direction by an amount corresponding to the predetermined amount.

2. The vehicle door stopping device according to claim 1,

the holding mechanism includes: an idle gear engaged with a transfer gear fixed to the drum; a snap projection provided on the idle gear; and a cancel mechanism that displaces the lock member to the unlock position by being pressed by the engagement projection when the drum is located within a rotation range from an end of a rotation range in a2 nd rotation direction until the drum is rotated by the predetermined amount in a1 st rotation direction,

the number of teeth of the transmission gear and the number of teeth of the idle gear are set as follows: the idler gear rotates less than one revolution relative to the rotation of the drum from the fully closed position to the fully open position of the door.

Technical Field

The present invention relates to a door stop device.

Background

A door stop device shown in patent document 1, for example, is conceivable in which a door for opening and closing an opening of a vehicle is biased in an opening direction, and such a door is temporarily prevented from opening at a position closer to a closing side than a fully open position.

The device is provided with a drum rotatably supported by a body fixed to a vehicle body, and a cable connecting the drum and a door. The drum is biased in a direction in which the cable is wound, and rotates in a1 st rotation direction when the cable is paid out from the drum in accordance with an opening operation of the door. On the other hand, when the door is closed, the drum rotates in the 2 nd rotation direction opposite to the 1 st rotation direction, and the cable is wound around the drum.

Further, this device is provided with a lock member that restricts rotation of the drum in the 1 st rotational direction (cable feeding direction) so that the door cannot be opened at a position closer to the closing side than the fully open position. The lock member is displaceable to either a lock position in which rotation of the drum in the 1 st rotation direction is restricted and rotation in the 2 nd rotation direction (winding direction of the cable) is permitted, or an unlock position in which rotation of the drum in both the 1 st rotation direction and the 2 nd rotation direction is permitted.

Further, the apparatus is also provided with a switching mechanism for restricting or releasing the rotation of the drum by the lock member. The switching mechanism is operated to switch the position of the lock member from the unlock position to the lock position by performing a switching operation of rotation in the 1 st rotation direction after rotation in the 2 nd rotation direction of the drum. Further, the drum is equipped with a cam that is brought into contact with the lock member located at the lock position when the door is closed to the fully closed position, thereby displacing the lock member to the unlock position.

Therefore, when the door is opened at a position closer to the closing side than the fully open position and the lock member is located at the unlock position, and the drum performs the switching operation by performing the opening operation after performing the closing operation of the door to some extent, the lock member is displaced from the unlock position to the lock position to restrict the rotation of the drum in the 1 st rotation direction. This disables the door from opening at a position closer to the closing side than the fully open position.

On the other hand, in a state where the door is not opened at the position closer to the closing side than the fully open position, when the door is closed to the fully closed position, the lock member located at the lock position is brought into contact with the cam attached to the drum and is displaced to the unlock position, and therefore, the rotation of the drum in the 1 st rotation direction is permitted. This enables the door to be opened again.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2011-46280

Disclosure of Invention

Problems to be solved by the invention

However, in the above-described door stop device, when the switching mechanism is temporarily displaced from the lock member to the lock position by the switching operation of the drum by the opening and closing operation of the door, if the lock member is displaced from the lock position to the unlock position without causing the door to perform the closing operation to the fully closed position, the door cannot be opened again. Therefore, when the door cannot be opened at a position close to the fully open position, the door must be moved to the fully closed position to a large extent when the door can be opened again, and the operation of the door for opening the door again is troublesome.

The invention aims to provide a vehicle door stopping device which can prevent the operation of a door which can not be opened from being troublesome for opening the door again.

Means for solving the problems

The means for solving the above problems and the operational effects thereof will be described below.

The door stop device for solving the above problem includes the following roller, a lock member, and a switching mechanism. The drum rotates in a1 st rotation direction when a door for opening and closing an opening of a vehicle is opened, and rotates in a2 nd rotation direction opposite to the 1 st rotation direction when the door is closed. The locking member is displaceable to any one of a locking position that restricts rotation of the drum in a1 st rotational direction and permits rotation of the drum in a2 nd rotational direction and an unlocking position that permits rotation of the drum in both the 1 st rotational direction and the 2 nd rotational direction. The switching mechanism switches the position of the lock member from the unlock position to the lock position by performing a switching operation of rotation in the 1 st rotation direction after rotation in the 2 nd rotation direction of the drum. The switching mechanism of the door stop device is operated by receiving rotation transmission from the drum. The switching mechanism is configured to displace the lock member to the unlock position in accordance with a rotation of the drum by a predetermined amount or more in the 2 nd rotation direction, and to alternately hold the lock member at the unlock position and displace the lock member to the lock position every time the rotation of the drum is switched from the 2 nd rotation direction to the 1 st rotation direction. The switching mechanism is incorporated with a holding mechanism that operates to hold the lock member at the unlock position when the drum is located within a rotation range from an end of a rotation range in the 2 nd rotation direction to rotation in the 1 st rotation direction by an amount corresponding to the predetermined amount.

According to the above configuration, the switching mechanism operates so that the position of the lock member is displaced from one of the lock position and the unlock position to the other every time the switching operation of the drum is performed. Therefore, the above switching operation of the drum is performed by the opening and closing operation of the door, and the locking member is displaced to the locking position by the switching operation, whereby the door cannot be opened at the position closer to the closing side than the fully closed position, and then the locking member can be displaced to the unlocking position when the door is operated as follows. That is, by opening and closing the door and performing the switching operation of the drum again, the lock member is displaced from the lock position to the unlock position, and the door can be opened again. In this way, even if the door is not closed to the fully closed position, the door that is not opened can be opened again. Therefore, it is possible to suppress the operation of the door for causing the door that is unable to be opened again.

However, in the case of the above-described switching mechanism, when the door in the closing operation is opened near the fully closed position when the lock member is located at the unlock position, the drum performs the switching operation in association with the operation of the door, and the lock member may be displaced to the lock position, so that the door cannot be opened at the position at that time (position near the fully closed position). When the door is located between the fully closed position and the moving position at the time of performing the opening operation by the predetermined amount at this time, the door collides with the fully closed position even if the door is subjected to the closing operation, and therefore the drum cannot be rotated by the predetermined amount in the 2 nd rotation direction. As a result, the locking member cannot be displaced from the locking position to the unlocking position by the switching operation of the drum, and the door cannot be opened again from the position at which the opening operation cannot be performed.

In order to cope with this, it is conceivable to attach a cam or the like to the drum, which contacts the lock member located at the lock position and displaces the lock member to the unlock position when the door is closed to the fully closed position. However, when such a cam or the like is mounted on the drum, it is necessary to consider a configuration in which the cam or the like that rotates integrally with the drum does not interfere with other members, and this is undeniable as a factor of reducing the degree of freedom in design of the door stop device. However, according to the above configuration, the switching mechanism that operates upon receiving the rotation transmission from the drum is incorporated with a holding mechanism that operates to hold the lock member at the unlock position when the drum is located within a rotation range (rotation range X) from an end of a rotation range in the 2 nd rotation direction to the 1 st rotation direction by an amount corresponding to the predetermined amount. With this holding mechanism, the lock member is held at the unlocked position as described above, and therefore, even if the cam or the like is not attached to the drum, the lock member can be placed in a state of being displaced to the unlocked position when the drum is located within the above-described rotation range X. Therefore, the above-described problem such as the case of mounting the cam or the like to the drum can be suppressed.

In the above-described door stop device, the holding mechanism includes an idler gear that meshes with a transmission gear fixed to the drum, and an engaging projection provided on the idler gear. The holding mechanism further includes a canceling mechanism that displaces the lock member to the unlock position by being pressed by the engaging projection when the drum is located within a rotation range from an end of a rotation range in the 2 nd rotation direction to a rotation in the 1 st rotation direction by an amount corresponding to the predetermined amount. The number of teeth of the transmission gear and the number of teeth of the idle gear may be set to: the idle gear is rotated less than one rotation corresponding to the rotation of the drum from the fully closed position to the fully open position of the door.

According to the above configuration, when the idle gear rotates in accordance with the rotation of the drum when the door moves between the fully closed position and the fully open position, the idle gear rotates less than one rotation. Therefore, the pressing of the cancel mechanism by the engaging projection provided on the idle gear can be performed only when the door is located within a predetermined range near the full close, that is, only within the opening/closing range corresponding to the above-described rotation range X of the drum. Therefore, the following can be avoided: this pressing of the canceling mechanism by the engaging projection is performed when unnecessary, and the lock member is unnecessarily displaced to the unlock position in association with this pressing.

Effects of the invention

According to the present invention, it is possible to suppress the operation of the door, which is for causing the door incapable of being opened to be opened again, from taking time and effort.

Drawings

Fig. 1 is a side view schematically showing a rear portion of a vehicle to which a door stop device is applied.

Fig. 2 is an exploded perspective view showing a state in which the stop device is viewed from the front side.

Fig. 3 is an exploded perspective view showing a state in which the stop device is viewed from the back side.

Fig. 4 is an exploded perspective view showing a state in which the stopper is viewed from the front side.

Fig. 5 is an exploded perspective view showing a state in which the stop device is viewed from the back side.

Fig. 6 is an exploded perspective view illustrating the ejection unit.

Fig. 7 is an exploded perspective view illustrating the ejection unit.

Fig. 8 is a schematic diagram for explaining the operation of the ejection unit.

Fig. 9 is a schematic diagram for explaining the operation of the ejection unit.

Fig. 10 is a schematic diagram for explaining the operation of the ejection unit.

Fig. 11 is a schematic diagram for explaining the operation of the ejection unit.

Fig. 12 is a schematic diagram for explaining the operation of the ejection unit.

Fig. 13 is a schematic diagram for explaining the operation of the ejection unit.

Fig. 14 is a schematic diagram for explaining the operation of the ejection unit.

Fig. 15 is a schematic diagram for explaining the operation of the ejection unit.

Fig. 16 is a rear view showing a state of the stop device when the door is at the fully closed position.

Fig. 17 is a rear view showing a state of the stop device when the door is opened from the fully closed position.

Fig. 18 is a rear view showing a state of the stop device when the door is further opened.

Fig. 19 is a rear view showing a state of the stop device when the door is further opened.

Fig. 20 is a rear view showing a state of the stop device when the door is further opened.

Fig. 21 is a rear view showing a state of the stop device when the door is opened again.

Detailed Description

An embodiment of the door stop device will be described below with reference to fig. 1 to 21.

As shown in fig. 1, a door 20 for opening and closing an opening 11 located at the rear of a vehicle 10 is rotatable about a rotation shaft 21, and the rotation shaft 21 extends in the vehicle width direction (the direction perpendicular to the paper surface of fig. 1) at an upper end portion of the opening 11. The door 20 performs an opening operation from the fully closed position (solid line) to the fully opened position (two-dot chain line) or a closing operation from the fully opened position to the fully closed position by rotation about the rotation shaft 21.

In the vehicle 10, a gas spring 30 is provided to connect the vehicle body 12 and the door 20, and the gas spring 30 biases the door 20 in an opening direction. A moment M1 about the rotating shaft 21 based on the weight thereof acts on the door 20, and a moment M2 about the rotating shaft 21 based on the urging force of the gas spring 30 acts thereon. Further, when the user operates the door 20 in the opening direction or the closing direction, the moment M3 about the rotating shaft 21 based on the operation force also acts on the door 20.

The opening/closing manner of the door 20 also changes based on the magnitude relationship of the moments M1, M2, and M3. Specifically, the door 20 performs a closing operation when the relationship "M1 > M2+ M3" is established, performs an opening operation when the relationship "M1 < M2+ M3" is established, and stops when the relationship "M1 ═ M2+ M3" is established. When the user does not operate the door 20, the "M3 is 0", and at this time, the opening/closing mode of the door 20 is determined based on the magnitude relationship between the moment M1 and the moment M2.

The vehicle 10 is provided with a door stop device 40, and the door stop device 40 is provided to temporarily disable the opening operation of the door 20 at any position between the fully open position and the fully closed position.

A door stopper (hereinafter, simply referred to as a stopper) 40 is provided with a drum 210 and a cable 220 connecting the drum 210 and the door 20, and the drum 210 is rotatably supported by a casing 100 fixed to the body 12 of the vehicle 10. The drum 210 is biased in a direction in which the cable 220 is wound, and rotates in the 1 st rotation direction when the cable 220 is paid out from the drum 210 in accordance with the opening operation of the door 20. On the other hand, when the door 20 is closed, the drum 210 rotates in the 2 nd rotation direction, which is a direction opposite to the 1 st rotation direction, and the cable 220 is wound around the drum 210.

The stopping device 40 restricts or releases the rotation of the drum 210 in the 1 st rotation direction (the feeding direction of the cable 220) so that the door 20 cannot be opened at the position closer to the closing side than the fully opened position. When the stop device 40 is caused to perform such restriction and release of the restriction, the door 20 is caused to perform a closing operation to some extent and then to perform an opening operation, whereby the drum 210 is caused to perform a switching operation as follows. That is, the switching operation of rotating drum 210 in the 1 st rotation direction is performed after a predetermined amount of rotation of drum 210 in the 2 nd rotation direction (winding direction of cable 220).

By the switching operation of the drum 210, the stop device 40 restricts the rotation of the drum 210 in the 1 st rotation direction, and thereby the door 20 cannot be opened at a position closer to the closing side than the fully opened position. In the state where the door 20 is not opened at the position closer to the closing side than the fully opened position, when the switching operation of the drum 210 is performed, the stop device 40 releases the restriction of the rotation of the drum 210 in the 1 st rotation direction, and the door 20 can be opened again from the position where the opening operation is not performed.

Next, the stop device 40 will be described in detail.

As shown in fig. 2 to 5, the casing 100 (fig. 2 and 3) of the stopper 40 includes a flat plate-shaped bottom plate 110, a case 120 provided on one side in the plate thickness direction of the bottom plate 110, and a cover 130 provided on the other side in the plate thickness direction of the bottom plate 110.

The drum 210 rotatably supported by the support shaft 141 is provided between the base plate 110 and the casing 120. A ratchet gear 430 and a transmission gear 310 (fig. 4) are attached to the drum 210 so as to be rotatable integrally with the drum 210. As shown in fig. 3, a coil spring 230 is provided between the base plate 110 and the cover 130, and the coil spring 230 applies a biasing force to the drum 210 via the support shaft 141 in a direction (2 nd rotation direction) in which the cable 220 is wound.

As shown in fig. 2 and 4, a lock member 470 is provided between the base plate 110 and the housing 120 (fig. 2) and above the drum 210 and the ratchet gear 430, and the lock member 470 regulates the rotation of the drum 210 in the 1 st rotation direction (the feeding direction of the cable 220). In the locking member 470, an end portion close to the roller 210 is rotatably supported by the support shaft 143. A through hole 473 for the operation of the locking member 470 is formed in the end of the locking member 470 that is remote from the roller 210. A claw 471 (fig. 4) that can engage with the ratchet gear 430 is formed between both end portions of the lock member 470.

When the lock member 470 rotates about the support shaft 143 in a direction approaching the roller 210, the claw 471 of the lock member 470 engages with the ratchet gear 430. At this time, the lock member 470 is displaced to the lock position. The locking member 470 displaced to the locking position restricts rotation of the ratchet gear 430 and the drum 210 with respect to the 1 st rotational direction by the claw 471, and allows rotation of the ratchet gear 430 and the drum 210 with respect to the 2 nd rotational direction.

When the lock member 470 in the lock position is rotated in a direction away from the drum 210 about the support shaft 143, the engagement of the claw 471 of the lock member 470 with the ratchet gear 430 is released. At this time, the lock member 470 is displaced to the unlock position. The locking member 470 displaced to the unlocking position allows rotation of the ratchet gear 430 and the drum 210 in both the 1 st rotation direction and the 2 nd rotation direction. In this way, the lock member 470 is displaced to any one of the lock position and the unlock position by rotation about the support shaft 143.

Next, a switching mechanism for displacing the lock member 470 between the lock position and the unlock position will be described.

The switching mechanism switches the position of the lock member 470 from one of the lock position and the unlock position to the other every time the switching operation is performed by the above-described switching operation of the drum 210 by the operation of the door 20.

The switching mechanism includes: an idle gear 320 engaged with the transmission gear 310 (fig. 4 and 5) rotating integrally with the drum 210; a driven gear 330 engaged with the idle gear 320; a sector gear 340 coupled to the driven gear 330; and an ejecting unit 500 (fig. 2) driven by the sector gear 340. The sector gear 340 is a sector gear, and is engaged with the rack 521 of the ejection unit 500. The ejection unit 500 is coupled to the lock member 470 using the through hole 473 of the lock member 470.

The idle gear 320, the driven gear 330, the sector gear 340, and the ejecting unit 500 are disposed between the bottom plate 110 of the casing 100 and the housing 120. The idle gear 320 is rotatably supported by the support shaft 142. The driven gear 330 and the sector gear 340 are rotatably supported by a support shaft 341 and are coupled to each other by a rotary damper 350 so as to transmit only a torque less than a predetermined value. Therefore, when a torque less than a predetermined value acts on one of the driven gear 330 and the sector gear 340, the torque is transmitted therebetween, and the two rotate integrally. On the other hand, when a torque equal to or larger than a predetermined value acts on one of the driven gear 330 and the sector gear 340, the two rotate relative to each other so that the torque cannot be transmitted to the other.

When the drum 210 rotates in the feeding direction (1 st rotation direction) of the cable 220 in accordance with the opening operation of the door 20, the rotation is transmitted to the transmission gear 310 (fig. 4), the idle gear 320, the driven gear 330, and the sector gear 340, and the rack 521 (fig. 2) of the ejecting unit 500 engaged with the sector gear 340 moves downward. On the other hand, when drum 210 rotates in the winding direction (2 nd rotation direction) of cable 220 in accordance with the closing operation of door 20, the rotation is transmitted to gears 310, 320, 330, and 340, and rack 521 moves upward.

The rotation range of the sector gear 340 when the rack 521 moves up and down is limited by the gear 340 contacting the inner wall of the housing 120. Therefore, the rack 521 moves up and down by an amount corresponding to the limited rotation range of the sector gear 340. When the sector gear 340 collides with the inner wall of the housing 120, the driven gear 330 and the sector gear 340 rotate relative to each other by the operation of the rotary damper 350.

In the switching mechanism, when the switching operation of the drum 210 by the operation of the door 20 is transmitted to the idle gear 320, the driven gear 330, the sector gear 340, and the eject unit 500, the eject unit 500 is driven so that the position of the lock member 470 is switched from one of the lock position and the unlock position to the other.

Specifically, the ejection unit 500 displaces the lock member 470 to the unlock position in accordance with the rotation of the drum 210 by a predetermined amount or more with respect to the 2 nd rotation direction. Further, each time the drum 210 is switched from the 2 nd rotation direction to the 1 st rotation direction, the ejecting unit 500 operates to alternately hold the lock member 470 at the unlock position and shift the lock member 470 to the lock position. Therefore, each time the above switching operation of the drum 210 is performed, the ejecting unit 500 operates to switch the position of the locking member 470 from one of the locking position and the unlocking position to the other.

Next, the ejection unit 500 will be described in detail.

As shown in fig. 6 and 7, the ejector unit 500 includes a cylindrical body 510 extending in the vertical direction (the direction of arrows a1 and a2 in fig. 6 and 7), and an ejector 520 and a pressing body 530 inserted into the cylindrical body 510 from below. The ejecting unit 500 further includes a rotating body 540 inserted into the cylindrical body 510 from above, and a coupling body 560 for pressing the rotating body 540 toward the cylindrical body 510 (downward).

When the cylinder 510 is assembled between the bottom plate 110 of the case 100 (fig. 2) and the housing 120, the positions of the ejection unit 500 in the directions of arrows a1 and a2 and the directions of arrows C1 and C2 (the circumferential direction of the cylinder 510) in fig. 6 and 7 are fixed. In the inner peripheral surface of the cylindrical body 510, the lower half portion has a smaller inner diameter than the upper half portion, and thus the center portion in the vertical direction becomes a stepped surface. The step surface is formed by the 1 st and 2 nd cam surfaces 513 and 514, the 1 st and 2 nd restricting surfaces 515 and 516, the bottom surface 518, and the like.

The 1 st cam surface 513 and the 2 nd cam surface 514 are formed in plural so as to be alternately arranged in the arrow C1 and C2 directions, and are inclined so as to be displaced toward the arrow a2 as they go toward the arrow C1 direction. An escape groove 517 is formed between a front end portion of the 2 nd cam surface 514 in the arrow C1 direction and a rear end portion of the 1 st cam surface 513 in the arrow C1 direction. A front end portion of the 1 st cam surface 513 in the arrow C1 direction and a rear end portion of the 2 nd cam surface 514 in the arrow C1 direction are connected by a1 st restricting surface 515 extending in the arrow a1 and a2 directions. Further, a rear end portion of the 1 st cam surface 513 in the arrow C1 direction and a front end portion of the bottom surface 518 of the escape groove 517 in the arrow C1 direction are connected by a2 nd regulating surface 516 (inner side surface of the escape groove 517) extending in the arrow a1 and a2 directions.

The cylindrical pressing body 530 is inserted into the cylindrical body 510, and the cylindrical body 510 and the pressing body 530 are relatively movable in the directions of arrows a1 and a 2. Further, the cylindrical portion 522 of the push-out body 520 is inserted into the inside of the push-out body 530 in the cylindrical body 510, and the push-out body 530 and the cylindrical portion 522 are relatively movable in the directions of arrows a1 and a 2. The rack 521 is fixed to the lower end of the cylindrical portion 522 via a connecting portion 523.

The cylindrical body 510 is formed with guide grooves 511 and 512 extending in the directions of arrows a1 and a 2. A guide shaft 532 is inserted into the guide groove 512 of the cylinder 510, and the guide shaft 532 is formed on the outer peripheral surface of the pressing body 530. Further, the guide groove 512 and the guide shaft 532 guide the relative movement of the pressing member 530 and the cylinder 510 in the directions of arrows a1 and a2, and inhibit the relative movement in the directions of arrows C1 and C2.

A guide groove 531 extending in the direction of arrows a1, a2 is formed in a portion of the pressing body 530 corresponding to the guide groove 511 of the cylindrical body 510. The guide shaft 524 is inserted into the guide grooves 511 and 531, and the guide shaft 524 is formed on the outer peripheral surface of the cylindrical portion 522 of the push-out body 520. Further, the guide grooves 511 and 531 and the guide shaft 524 guide the relative movement of the cylindrical body 510, the pressing body 530, and the cylindrical portion 522 of the ejecting body 520 in the directions of the arrows a1 and a2, and prohibit the relative movement in the directions of the arrows C1 and C2.

The upper end surface of the pressing body 530 is formed by a plurality of cam surfaces 534, and the plurality of cam surfaces 534 are inclined so as to be displaced in the arrow a2 direction as they go in the arrow C1 direction. The upper end surface of the cylindrical portion 522 of the knockout 520 is formed by the cam surface 525 and the cam surface 526, the cam surface 525 is inclined so as to be displaced in the arrow a2 direction as it goes toward the arrow C1 direction, and the cam surface 526 is inclined so as to be displaced in the arrow a1 direction as it goes toward the arrow C1 direction. The number of cam faces 534 of the pushing body 530 is half of the number of cam faces 525 of the pushing body 520 (cylindrical portion 522), in other words, half of the number of cam faces 526.

The cam surface 534 of the pressing body 530, the cam surfaces 525 and 526 of the cylindrical portion 522, and the 1 st cam surface 513 and the 2 nd cam surface 514 of the cylindrical body 510 change relative positions with respect to the arrows a1 and a2 with the relative movement of the pressing body 530, the ejector 520 (the cylindrical portion 522), and the cylindrical body 510 with respect to the arrows a1 and a 2.

When the drum 210 rotates in response to the operation of the door 20, the rack 521 moves up and down as described above in conjunction with the rotation transmitted to the conversion mechanism, and the knockout 520 (the cylindrical portion 522) also moves up and down integrally, that is, in the directions of arrows a1 and a 2. With the movement of the push-out body 520, the cam surfaces 525 and 526 of the cylindrical portion 522 move relative to the cam surface 534 of the pressing body 530 and the 1 st cam surface 513 and the 2 nd cam surface 514 of the cylindrical body 510 in the directions of arrows a1 and a 2.

The cylindrical rotor 540 inserted into the cylinder 510 from above is movable relative to the cylinder 510 in the directions of arrows a1 and a2 and in the directions of arrows C1 and C2. A plurality of ribs 542 are formed on the outer peripheral surface of the rolling element 540 at equal intervals in the directions of arrows C1 and C2. The rib 542 extends in the direction of arrows a1 and a2, and can be inserted into the escape groove 517 formed in the inner circumferential surface of the cylindrical body 510.

The lower end surface of the rib 542 is a cam surface 544, and the cam surface 544 is inclined so as to be displaced toward the arrow a2 as it goes toward the arrow C1. The cam surface 544 faces the cam surface 534 of the pushing member 530, the cam surfaces 525 and 526 of the ejecting member 520 (the cylindrical portion 522), and the 1 st and 2 nd cam surfaces 513 and 514 of the cylindrical body 510 and the bottom surface 518 of the escape groove 517 in the directions of arrows a1 and a 2.

The coupling body 560 is provided above the rolling member 540, and a part of the coupling body 560 is inserted into an upper end portion of the rolling member 540. The coupling member 560 and the rotating member 540 are movable relative to each other in the directions of arrows C1 and C2. Further, the coupling body 560 includes: a bent shaft 562 inserted into the through hole 473 of the lock member 470 (fig. 2) when the ejector unit 500 is fitted between the bottom plate 110 of the casing 100 (fig. 2) and the housing 120; and a coil spring 550 for pressing the coupling member 560 toward the rolling element 540. The biasing force of the coil spring 550 acts on the rolling element 540 in the direction of arrow a2 via the coupling member 560.

Therefore, when the drum 210 is rotated by the operation of the door 20, the knock-out body 520 (the cylindrical portion 522) is moved in the directions of the arrows a1 and a2 as described above by the rotation, and the cam surface 525 of the cylindrical portion 522 presses or releases the cam surface 544 of the rolling body 540 against the biasing force of the coil spring 550.

When the cam surface 525 of the ejecting body 520 presses the cam surface 544 of the rotating body 540, the rotating body 540 and the coupling body 560 move in the direction of the arrow a1 against the biasing force of the coil spring 550. Thereby, the lock member 470 coupled to the bent shaft 562 of the coupling member 560 is displaced to the unlock position.

On the other hand, when the pressing of the cam surface 544 of the rotating body 540 by the cam surface 525 of the ejecting body 520 is released, the rotating body 540 and the coupling body 560 move in the direction of the arrow a2 due to the biasing force of the coil spring 550. When the rotating body 540 and the coupling body 560 move maximally in the direction of the arrow a2, the lock member 470 coupled to the bent shaft 562 of the coupling body 560 is displaced from the unlock position to the lock position.

Next, the operation of the knock-out unit 500 when the drum 210 rotates by the operation of the door 20, in other words, the displacement between the lock position and the unlock position of the lock member 470 will be described in more detail.

Fig. 8 to 12 schematically show positional relationships in the directions of arrows a1 and a2 among the rotating body 540 (cam surface 544), the ejecting body 520 (cam surfaces 525 and 526), and the cylinder 510 (1 st cam surface 513 and 2 nd cam surface 514).

The position of the rotating body 540 with respect to the directions of the arrows a1, a2 is in relation to the position of the locking member 470 (fig. 2). Specifically, when the rib 542 of the rotating body 540 is inserted into the escape groove 517 of the cylinder 510 as shown by the two-dot chain line in fig. 10, the locking member 470 is displaced to the locking position when the rotating body 540 is maximally displaced in the arrow a2 direction. On the other hand, when the rib 542 of the rotating body 540 is located at a position pulled out from the escape groove 517 of the cylindrical body 510 in fig. 8 to 12, that is, on the side of the arrow a1 direction from the position shown by the two-dot chain line in fig. 10, the locking member 470 is displaced to the unlocking position.

During the closing operation of the door 20, the drum 210 rotates in the winding direction (2 nd rotation direction) of the cable 220, and as shown in fig. 9 or 11, the cam surface 525 of the knockout 520 lifts the cam surface 544 of the rolling element 540 in the arrow a1 direction, and the lock member 470 is moved to the unlocked position. At this time, the cam surface 525 and the cam surface 544 act to displace the rotating body 540 relative to the ejecting body 520 in the direction of arrow C1 from the position shown by the solid line in fig. 9 or 11. The rotating body 540 thus displaced abuts against the front end of the cam surface 544 in the direction of the arrow C1 and the front end of the cam surface 526 of the ejecting body 520 in the direction of the arrow C1, and stays at the boundary between the cam surface 526 and the cam surface 525 as shown by the two-dot chain line in fig. 9 or 11.

When the operation mode of the door 20 for closing operation is switched to the opening operation, the rotation of the drum 210 is switched to the feeding direction (1 st rotation direction) of the cable 220. As described above, when the drum 210 rotates in the 2 nd rotation direction, the cam surfaces 525 and 526 of the knock-out member 520 move in the direction of the arrow a2, and therefore the rolling element 540 also moves in the direction of the arrow a2 by the biasing force of the coil spring 550. As a result, the cam surface 544 of the rolling element 540 is in a state of pressing the 2 nd cam surface 514 of the cylinder body 510 in the direction of the arrow a2 as shown by the solid line in fig. 10, or in a state of pressing the 1 st cam surface 513 of the cylinder body 510 in the direction of the arrow a2 as shown by the solid line in fig. 12.

When the cam surface 544 of the rolling element 540 is in a state where the 2 nd cam surface 514 of the cylinder 510 is pressed in the direction of the arrow a2 as shown by the solid line in fig. 10, the rolling element 540 is displaced from the position shown by the solid line in the direction of the arrow C1 with respect to the cylinder 510 by the action of the cam surface 544 and the 2 nd cam surface 514. As a result, the rib 542 (cam surface 544) of the rotating body 540 is accommodated in the escape groove 517 of the cylindrical body 510, the cam surface 544 contacts the bottom surface 518 of the escape groove 517, and the rib 542 contacts the 2 nd regulating surface 516 in the escape groove 517. At this time, the rotor 540 is maximally displaced in the arrow a2 direction, and therefore the lock member 470 is displaced from the unlock position to the lock position.

On the other hand, when the cam surface 544 of the rolling element 540 is in a state where the 1 st cam surface 513 of the cylinder 510 is pressed in the direction of the arrow a2 as shown by the solid line in fig. 12, the rolling element 540 is displaced from the position shown by the solid line in the direction of the arrow C1 with respect to the cylinder 510 by the action of the cam surface 544 and the 1 st cam surface 513. As a result, as shown by the two-dot chain line, the cam surface 544 of the rolling element 540 contacts the 1 st cam surface 513 of the cylinder 510, and the rib 542 of the rolling element 540 contacts the 1 st restricting surface 515 of the cylinder 510. At this time, the rolling element 540 is located at a position closer to the arrow a1 direction than the position maximally displaced in the arrow a2 direction, that is, the position at which the rib 542 is housed in the escape groove 517, and therefore the lock member 470 is held at the unlock position.

When the door 20 is closed and the drum 210 is rotated in the winding direction (2 nd rotation direction) of the cable 220 when the rolling element 540 is positioned at the position indicated by the two-dot chain line in fig. 10 or 12, the cam surface 525 of the ejector 520 lifts the cam surface 544 of the rolling element 540 in the direction of the arrow a 1. As a result, the rolling element 540 moves to the position shown by the solid line in fig. 11 when it is located at the position shown by the two-dot chain line in fig. 10, and the rolling element 540 moves to the position shown by the solid line in fig. 9 when it is located at the position shown by the two-dot chain line in fig. 12. Thus, the locking member 470 becomes displaced to the unlocking position by the movement of the rotating body 540.

Therefore, when the drum 210 performs the switching operation by the operation of the door 20, the operation of fig. 8 → 9 → 10 or the operation of fig. 10 → 11 → 12 (the same as fig. 8) is performed as the operation of the ejecting unit 500 by the switching operation. When the switching operation of the drum 210 is repeated, the operation of the ejecting unit 500 shown in fig. 8 → 9 → 10 and the operation of the ejecting unit 500 shown in fig. 10 → 11 → 12 are alternately repeated. The operation of the eject unit 500 shown in fig. 8 → 9 → 10 is an operation for switching the position of the lock member 470 from the unlock position to the lock position. The operation of the ejector unit 500 shown in fig. 10 → 11 → 12 is an operation for switching the position of the lock member 470 from the lock position to the unlock position.

In the above switching operation of drum 210, the "predetermined amount" when drum 210 is rotated by a predetermined amount or more in the 2 nd rotation direction means the amount of rotation of drum 210 in the 2 nd direction as follows. That is, in the operation of fig. 10 → 11 of the ejector unit 500, the amount of rotation of the drum 210 in the 2 nd rotational direction that can be achieved by the movement of the cam surfaces 525 and 526 of the ejector 520 in the direction of the arrow a1 from the position shown in fig. 10 to the position shown in fig. 11 is made the "predetermined amount".

As described above, the switching mechanism (the ejector unit 500 or the like) of the stopper device 40 operates to shift the position of the lock member 470 from one of the lock position and the unlock position to the other thereof each time the switching operation of the drum 210 is performed. Therefore, the above switching operation of the drum 210 is performed by the operation of the door 20, the locking member 470 is displaced to the locking position by the switching operation, the door 20 is not opened at the position closer to the closing side than the fully closed position, and then the locking member 470 can be displaced to the unlocking position when the door 20 is operated as follows.

That is, by opening and closing the door 20 and performing the switching operation of the drum 210 again, the lock member 470 is displaced from the lock position to the unlock position, and the door 20 can be opened again. In this way, even if the door 20 is not closed to the fully closed position as in the conventional case, the door 20 that has been set to be incapable of opening can be opened again. Therefore, it is possible to suppress the operation of the door 20 for causing the door 20 that has been made incapable of opening to perform the opening operation again.

However, in the case of the switching mechanism, when the door 20 being closed is opened near the fully closed position when the lock member 470 is located at the unlock position, the drum 210 performs the switching operation in accordance with the operation of the door 20. As a result, the lock member 470 may be displaced to the lock position, and the door 20 may not be opened at the position at that time (the position near the fully closed position).

When the door 20 is located between the fully closed position and the movement position at the time of the opening operation corresponding to the predetermined amount at this time, the door 20 hits the fully closed position even if the closing operation is performed, and therefore the rotation of the drum 210 by the predetermined amount in the 2 nd rotation direction cannot be achieved. As a result, the lock member 470 cannot be displaced from the lock position to the unlock position by the switching operation of the drum 210, and the door 20 cannot be opened again from the position where the opening operation cannot be performed.

To cope with this, the switching mechanism of the stopper device 40 is incorporated with a holding mechanism, and the holding mechanism operates as follows: when the drum 210 is located within a rotation range (hereinafter referred to as a rotation range X) from an end of the rotation range in the 2 nd rotation direction to the 1 st rotation direction, which is rotated by an amount corresponding to the predetermined amount, the lock member 470 is held at the unlock position.

If the lock member 470 is held at the unlock position by the holding mechanism as described above, the lock member 470 is not displaced to the lock position when the drum 210 is located within the above-described rotation range X. Therefore, the following problems can be suppressed from occurring: the locking member 470 is displaced to the locking position when the drum 210 is located within the above-described rotation range X, so that the door 20 cannot be opened at the position at that time, and then the door 20 cannot be opened again.

Next, the details of the holding mechanism will be described.

The holding mechanism includes: an idle gear 320 (fig. 4 and 5) of the switching mechanism; an engaging projection 321 (fig. 5) provided on the idle gear 320; and a canceling mechanism 600 that displaces the lock member 470 to the unlock position by being pressed by the engaging projection 321 when the drum 210 is located within the above-described rotation range X. The number of teeth of the idle gear 320 and the number of teeth of the transmission gear 310 engaged with the idle gear 320 are set as follows: the idle gear 320 does not rotate enough for one rotation of the drum 210 from the fully closed position to the fully opened position of the door 20.

The cancellation mechanism 600 includes a cancellation lever 610, and a central portion in the longitudinal direction of the cancellation lever 610 is rotatably supported by a support shaft 124 provided in the housing 120 of the case 100. A long hole 616 is formed at one end in the longitudinal direction of the cancel lever 610. A cam shaft 533 is inserted into the long hole 616, and the cam shaft 533 is formed at the tip end of the guide shaft 532 of the pressing body 530 (fig. 6 and 7) in the ejector unit 500. Therefore, when the cancel lever 610 rotates about the support shaft 124, the pressing body 530 is pressed in the arrow a1 and a2 directions by the cancel lever 610, and moves relative to the cylinder 510 in the arrow a1 and a2 directions. The pressing member 530 is also included in the canceling mechanism 600, i.e., the holding mechanism.

As shown in fig. 5, the retracting mechanism 600 includes a coil spring 620 that connects the retracting lever 610 and the housing 120. The coil spring 620 biases the cancel lever 610 in a direction of moving the pressing body 530 (fig. 6 and 7) in the arrow a2 direction, out of the rotational direction of the cancel lever 610. When the drum 210 is positioned within the rotation range X, the engaging projection 321 of the idle gear 320 presses the end portion of the cancel lever 610 opposite to the end portion on the long hole 616 side in a direction against the urging force of the coil spring 620.

In this way, in a state where the engaging protrusion 321 presses the cancel lever 610, the cancel lever 610 pushes up the pressing body 530 and moves relatively in the arrow a1 direction with respect to the cylinder 510. As a result, the pressing member 530 pushes the rotating body 540 and the coupling body 560 upward in the direction of arrow a1, and the lock member 470 is thereby displaced to the unlocked position. As described above, the state in which the pressing member 530 pushes up the rolling element 540 and the coupling member 560 in the direction of the arrow a1, that is, the state in which the lock member 470 is displaced to the unlock position is maintained while the drum 210 is located within the above-described rotation range X. That is, the engaging protrusion 321 and the cancel lever 610 are formed as described above.

Next, the operation mode of the ejector unit 500 (the mode of displacement between the lock position and the unlock position of the lock member 470) when the drum 210 is moved in and out of the rotation range X when the drum 210 is switched by the operation of the door 20 will be described in detail.

When the door 20 is opened, for example, and the door 20 is not set by the stopper 40 to be unable to be opened at a position closer to the fully opened position than the fully opened position, as shown in fig. 8, the cam surface 544 of the rolling member 540 in the ejector unit 500 contacts the 1 st cam surface 513 of the cylinder 510, so that the rolling member 540 does not move in the direction of the arrow a 2. Thus, the locking member 470 remains in the unlocked position. At this time, the cam surfaces 525 and 526 of the knock-out member 520 are displaced in the direction of the arrow a2 from the 1 st cam surface 513 and the 2 nd cam surface 514 of the cylinder 510.

In the state shown in fig. 8, when the drum 210 is switched by the operation of the door 20, the ejector 520 and the rotor 540 of the ejector unit 500 are operated as shown in fig. 8 → 9 → 10, and the position of the lock member 470 is switched from the unlock position to the lock position.

However, when the drum 210 enters the rotation range X during the switching operation of the drum 210, the pressing member 530 moves from the position indicated by the solid line to the position indicated by the two-dot chain line in fig. 13 in the direction of the arrow a1, and the cam surface 534 of the pressing member 530 pushes up the rib 542 of the rolling element 540 in the direction of the arrow a 1. Therefore, the rib 542 of the rolling member 540 enters the escape groove 517 of the cylinder 510, and the lock member 470 does not shift to the lock position in association therewith. Therefore, the lock member 470 is held at the unlock position at this time, so that the position of the lock member 470 is not switched from the unlock position to the lock position.

At this time, the rolling element 540 is displaced in the direction of the arrow C1 to the position indicated by the two-dot chain line in fig. 13 by the action of the cam surface 544 of the rib 542 and the cam surface 534 of the pushing element 530. Then, when the drum 210 goes out of the above-described rotation range X by the opening operation of the door 20, the pressing body 530 moves from the position indicated by the two-dot chain line to the position indicated by the solid line in fig. 13 in the arrow a2 direction. Accordingly, the cam surface 544 of the rolling element 540 contacts the 1 st cam surface 513 of the cylinder 510, and the rolling element 540 is moved in the direction of the arrow C1 from the position indicated by the solid line in fig. 15 to the position indicated by the two-dot chain line by the action of the 1 st cam surface 513 and the cam surface 544. At this time, the position of the lock member 470 is not switched from the unlock position to the lock position, and the lock member 470 is held at the unlock position.

On the other hand, when the door 20 is set by the stopper 40 so that the door cannot be opened at the position closer to the closed side than the fully opened position, the rib 542 of the rotating body 540 in the ejector unit 500 is accommodated in the escape groove 517 of the cylindrical body 510 as shown by the two-dot chain line in fig. 10, and is in a state of being maximally displaced in the arrow a2 direction. Thereby, the lock member 470 becomes a state of being displaced to the lock position. At this time, the cam surfaces 525 and 526 of the ejector 520 are displaced in the direction of the arrow a2 from the bottom surface 518 of the escape groove 517 of the cylindrical body 510.

If the knock-out unit 500 is in the state shown in fig. 10 when the drum 210 is located within the above-described rotation range X, the switching operation cannot be performed even if the drum 210 performs the above-described switching operation by the operation of the door 20. This is because: the door 20 hits the fully closed position during the closing operation, and the rotation of the drum 210 by the predetermined amount in the 2 nd rotation direction in the switching operation cannot be achieved. If the switching operation of the drum 210 is not possible, the lock member 470 cannot be displaced from the lock position to the unlock position, and the door 20 cannot be opened again from the position where the opening operation is not possible.

However, when the roller 210 is located within the above-described rotation range X, the pressing body 530 moves from the position indicated by the solid line to the position indicated by the two-dot chain line in fig. 14 in the arrow a1 direction, and the cam surface 534 of the pressing body 530 pushes up the rib 542 of the rolling body 540 in the arrow a1 direction. Therefore, the rib 542 of the rolling member 540 is not accommodated in the escape groove 517 of the cylinder 510, and the lock member 470 is not displaced to the lock position. Thus, the locking member 470 at this time is held in the unlocked position.

At this time, the rolling element 540 is displaced in the direction of the arrow C1 to the position indicated by the two-dot chain line in fig. 14 by the action of the cam surface 544 of the rib 542 and the cam surface 534 of the pushing element 530. When the drum 210 moves out of the rotation range X by the opening operation of the door 20, the pressing body 530 moves from the position indicated by the two-dot chain line to the position indicated by the solid line in fig. 14 in the direction of the arrow a 2. Accordingly, the cam surface 544 of the rolling element 540 contacts the 1 st cam surface 513 of the cylinder 510, and the rolling element 540 is displaced in the direction of the arrow C1 from the position indicated by the solid line in fig. 15 to the position indicated by the two-dot chain line by the action of the 1 st cam surface 513 and the cam surface 544. At this time, the position of the lock member 470 is not switched from the unlock position to the lock position, and the lock member 470 is held at the unlock position.

Finally, the operation of the entire stopping device 40 including the operation of each mechanism constituting the stopping device 40 is summarized.

Fig. 16 shows a state of the stopper 40 when the door 20 is at the fully closed position. When the door 20 located at the fully closed position is gradually opened, the state of the stop device 40 changes to the state shown in fig. 16 → 17 → 18 → 19. When the stop device 40 is in the state shown in fig. 19, and the drum 210 is switched by the operation of the door 20, the state of the stop device 40 changes to the state shown in fig. 19 → 20 → 21. Hereinafter, the state change of the above-described stopping device 40 will be described in detail.

When the door 20 is opened from the fully closed position, the drum 210 of the stopper 40 is gradually rotated in the direction (1 st rotation direction) in which the cable 220 is paid out from the state in which the drum is positioned within the above-described rotation range X. The rotation of the drum 210 is transmitted to the rack 521 of the ejection unit 500 via the transmission gear 310, the idle gear 320, the driven gear 330, and the sector gear 340. Thereby, the rack 521 moves in the direction of the arrow a2, and as shown in fig. 6 and 7, the cylindrical portion 522 of the knockout 520 connected to the rack 521 also moves in the direction of the arrow a 2.

While the drum 210 is positioned within the above-described rotation range X (fig. 16 → fig. 17), the engaging projection 321 of the idle gear 320 presses the cancel lever 610 in a direction against the urging force of the coil spring 620. Further, the cancel lever 610 presses the pressing member 530 of the eject unit 500 to move in the direction of arrow a 1. At this time, since the rotating body 540 and the coupling body 560 of the ejector unit 500 shown in fig. 6 and 7 are pressed in the direction of the arrow a1 by the pressing body 530, the lock member 470 (fig. 16 and 17) coupled to the coupling body 560 is held at the unlock position.

When the drum 210 is disengaged from the rotation range X in the 1 st rotation direction in accordance with the opening operation of the door 20 (fig. 17 → fig. 18 → fig. 19), the engaging projection 321 of the idle gear 320 is separated from the cancel lever 610, and the cancel lever 610 is pressed by the biasing force of the coil spring 620 to move the pressing body 530 in the arrow a2 direction. At this time, since the rotating body 540 and the coupling body 560 of the ejecting unit 500 shown in fig. 6 and 7 are maintained in a state of being moved in the direction of the arrow a1 by the cylindrical body 510, the lock member 470 (fig. 18 and 19) coupled to the coupling body 560 is held at the unlock position.

When the door 20 is changed from the opening operation to the closing operation after the drum 210 is out of the rotation range X, the rotation direction of the drum 210 is changed from the direction in which the cable 220 is paid out to the direction in which the cable 220 is wound (2 nd rotation direction) (fig. 19 → 20). When the rotation of the drum 210 in the 2 nd rotation direction is transmitted to the rack 521 of the ejecting unit 500 via the transmission gear 310, the idle gear 320, the driven gear 330, and the sector gear 340, the rack 521 moves in the direction of the arrow a 1. Further, the cylindrical portion 522 of the ejector 520 (fig. 6 and 7) connected to the rack 521 also moves in the direction of the arrow a 1. At this time, since the rotating body 540 and the coupling body 560 of the ejecting unit 500 are pressed in the direction of the arrow a1 by the ejecting body 520, the lock member 470 (fig. 20) coupled to the coupling body 560 is held at the unlock position.

Then, when the door 20 is changed from the closing action to the opening action, the rotation direction of the drum 210 is changed from the direction of winding the cable 220 to the direction of paying out the cable 220 (fig. 20 → fig. 21). This causes the switching operation of the drum 210 to be performed (fig. 19 → fig. 20 → fig. 21). Based on the above-described rotation of drum 210 in the direction in which cable 220 is fed, rack 521 moves in the direction of arrow a2, and further, cylindrical portion 522 of ejector 520 (fig. 6 and 7) also moves in the direction of arrow a 2. As a result, the rotating body 540 and the coupling body 560 of the ejecting unit 500 are pressed in the direction of the arrow a2 by the biasing force of the coil spring 550, and the rib 542 of the rotating body 540 enters the escape groove 517 of the cylindrical body 510. At this time, since the rotating body 540 and the coupling body 560 are in the state of moving maximally in the direction of the arrow a2, the position of the lock member 470 (fig. 21) coupled to the coupling body 560 is switched from the unlock position to the lock position.

Thus, the door 20 cannot be opened by the stopper 40 at a position closer to the closing side than the fully opened position. In this state, when the drum 210 is switched by the operation of the door 20 (fig. 21 → fig. 20 → fig. 19), the rotary body 540 and the coupling body 560 of the ejector unit 500 shown in fig. 6 and 7 are kept in the state of being moved in the direction of the arrow a1 by the cylindrical body 510 after the ejected body 520 is pressed in the direction of the arrow a 1. Further, the position of the lock member 470 (fig. 19) connected to the connecting member 560 is switched from the lock position to the unlock position. Incidentally, when the drum 210 is rotated in the winding direction of the cable 220 by closing the door 20 up to the fully closed position (fig. 19 → 18 → 17 → 16), the drum 210 enters the above-described rotation range X from the 2 nd rotation direction (fig. 17 → 16). In this way, even when the drum 210 is located within the above-described rotation range X, the lock member 470 (fig. 16 and 17) is held at the unlock position.

According to the door stop device of the present embodiment described in detail above, the following operational effects are obtained.

(1) In the stopping device 40, the switching mechanism operates as follows by the above-described switching operation of the drum 210: each time this switching operation is performed, the position of the lock member 470 is displaced from one of the lock position and the unlock position to the other. Therefore, the above switching operation of the drum 210 is performed by the opening and closing operation of the door 20, and the lock member 470 is displaced to the lock position by the switching operation, whereby the door 20 is set to be unable to be opened at the position closer to the closed side than the fully closed position, and then the lock member 470 can be displaced to the unlock position when the door 20 is operated as follows. That is, when the door 20 is opened and closed so that the switching operation of the drum 210 is performed again, the lock member 470 is displaced from the lock position to the unlock position, and the door 20 can be opened again. In this way, even if the door 20 is not closed to the fully closed position as in the conventional case, the door 20 that has been set to be incapable of opening can be opened again. Therefore, it is possible to suppress the operation of the door 20 for causing the door 20 that has been made incapable of opening to perform the opening operation again.

(2) Since the switching mechanism of the stopping device 40 is incorporated into the holding mechanism, and the holding mechanism operates to hold the lock member 470 at the unlock position when the drum 210 is located within the above-described rotation range X, the lock member 470 does not shift to the lock position when the drum 210 is located within the above-described rotation range X. Therefore, the following problems can be suppressed from occurring: the locking member 470 is displaced to the locking position when the drum 210 is located within the above-described rotation range X, so that the door 20 cannot be opened at the position at that time, and then the door 20 cannot be opened again.

(3) The holding mechanism is incorporated in the stopper device 40 into the following switching mechanism: a switching mechanism operated upon receiving the rotation from drum 210, that is, a switching mechanism for switching the position of lock member 470 from one of the lock position and the unlock position to the other every time the switching operation is performed by the above-described switching operation of drum 210.

Here, when a cam or the like that contacts the lock member 470 located at the lock position and displaces the lock member 470 to the unlock position when the door 20 is closed to the fully closed position as in the conventional art is attached to the drum 210 instead of providing the above-described holding mechanism in the stopping device 40, the following problem occurs. That is, when such a cam or the like is mounted on the drum 210, it is necessary to consider a configuration in which the cam or the like that rotates integrally with the drum 210 does not interfere with other components, and this may cause a reduction in the degree of freedom in design of the stopper device 40.

In this regard, the holding mechanism is incorporated in the stopper 40 into the switching mechanism that operates upon receiving the rotation transmission from the drum 210. Further, since the lock member is held at the unlock position by the holding mechanism as described above, even if the drum 210 is not equipped with a cam or the like, the lock member 470 can be displaced to the unlock position when the drum 210 is positioned within the above-described rotation range X. Therefore, the above-described problem, such as the case where the cam or the like is attached to the drum 210, can be suppressed.

(4) The holding mechanism of the stopping device 40 includes a canceling mechanism 600, and when the drum 210 is located within the rotation range X, the canceling mechanism 600 is pressed by the engaging projection 321 of the idle gear 320 that rotates in accordance with the rotation of the drum, and operates to displace the lock member 470 to the unlock position. The idle gear 320 meshes with the transmission gear 310 fixed to the drum 210, and the number of teeth of the transmission gear 310 and the number of teeth of the idle gear 320 are set as follows: the idle gear 320 does not rotate more than one rotation with respect to the rotation of the drum 210 from the fully closed position to the fully open position of the door 20.

Therefore, the engagement protrusion 321 provided on the idle gear 320 can be pressed against the canceling mechanism 600 (the canceling lever 610) only when the door 20 is located in a predetermined range near the full close, that is, the opening/closing range corresponding to the rotation range X of the drum 210. Therefore, the following can be avoided: this pressing of the cancel lever 610 by the engaging projection 321 is performed when unnecessary, and the lock member 470 is unnecessarily displaced to the unlock position along with this pressing.

The above embodiment can be modified as follows, for example. The above-described embodiments and the following modifications can be implemented in combination with each other within a range not technically contradictory.

The number of teeth of the transmission gear 310 and the number of teeth of the idle gear 320 can be changed as appropriate.

The case 100 of the stop device 40 may be fixed to the door 20, and the tip of the cable 220 of the stop device 40 may be connected to the vehicle body 12.

Instead of converting the rotational motion into the linear motion by the sector gear 340 and the rack 521, the rotational motion may be converted into the linear motion by, for example, a worm gear (worm) and a worm gear (worm gear).

The door to which the stop device 40 is applied may be a door that opens and closes an opening located in a side portion of the vehicle. As such a door, a door that is opened and closed by being rotated about an axis extending in the vehicle vertical direction, or a door that is opened and closed by being rotated about an axis extending in a direction intersecting the vehicle vertical direction may be used.

Description of the reference numerals

20: door with a door panel

40: stopping device

210: roller

220: cable with a protective layer

230: coil spring

310: transmission gear

320: idle gear

321: snap-in projection

330: driven gear

340: sector gear

430: ratchet gear

470: locking member

471: claw

500: ejection unit

510: barrel body

517: escape groove

518: bottom surface

520: ejection body

521: rack bar

523: connecting part

530: pressing body

540: rotary body

542: ribs

550: spiral spring

560: connection body

562: bending shaft

600: revocation mechanism

610: canceling bar

616: long hole

620: spiral spring