WO2011007735A1

WO2011007735A1 - Assist device for movable body

Info

Publication number: WO2011007735A1
Application number: PCT/JP2010/061714
Authority: WO
Inventors: 徳雄齋藤; 富岡　和幸
Original assignee: 株式会社ニフコ
Priority date: 2009-07-17
Filing date: 2010-07-09
Publication date: 2011-01-20
Also published as: CN102472073B; KR101183710B1; EP2455571A4; KR20110007955A; JP2011021414A; EP2455571A1; CN102472073A

Abstract

A forcibly moving mechanism is provided with a first pressing body for applying a pressing force to a latch body located at a standby position, said pressing force pressing the latch body toward a retracted position thereof. A striker body is captured at a predetermined position by the latch body which is being retained at the standby position, and the capturing of the striker body releases the latch body from the retention. As a result, the latch body moves to the retracted position, and this moves a movable body to a movement end position. A braking mechanism is provided with a contact section for making contact with the latch body which constitutes the forcibly moving mechanism. The braking mechanism is configured to apply resistance to the backward movement of the contact section caused by the movement of the latch body to the retracted position, and the braking mechanism is provided with a second pressing body for pressing the contact section in the forward movement direction.

Description

Movable assist device

The present invention relates to an improvement in a device for forcibly moving various movable bodies from a predetermined position to a movement end position and applying a braking force to the forced movement.

As a sliding door operation assistance and buffer mechanism (assist device) using a so-called piston damper, there is one disclosed in Patent Document 1. In this mechanism, the abutting bodies against the receiving bodies provided at the left and right of the upper part of the door frame are respectively provided at the front end of the piston rod and the rear end of the cylinder, and the distance between the both abutting bodies. It has a tension coil spring that urges it in such a direction that it always narrows. When the sliding door is in a neutral position that is not closed on either the left side or the right side of the door frame, the two abutting bodies are held by a magnetic force by the holding body in a state where the springs are most extended. When the sliding door is moved to the left from this neutral position, the abutting body hits and is attracted to the receiving member in the middle, and the holding by the holding body is released. When this holding is released, the left abutment body is moved relative to the right side by the action of the spring, and the moving dimension sliding door is forcibly moved to the left side. At this time, since the piston of the piston damper is pushed, a braking force based on the fluid resistance in the piston damper is applied to this movement. When the sliding door that has been moved to the left side is opened, the contact body that is attracted to the receiving body is moved relatively to the left side while stretching the spring, and is again attracted and held by the holding body. Solves body adsorption. Thereby, the movement to the right side of a sliding door becomes free. When the sliding door is moved to the right side from the neutral position, the same operation is performed via the right contact body, the receiving body, and the holding body.

However, in this conventional operation assisting and buffering mechanism, when the sliding door closed to the left or right side of the door frame is opened, the spring is stretched and the fluid resistance in the piston damper is received. It is necessary to move the piston to be moved in the pull-out direction. Although the resistance of the spring is uniform, the fluid resistance increases in proportion to the opening speed of the piston, that is, the sliding door. Therefore, the conventional operation assisting and buffering mechanism has its structure for opening the sliding door. It would function to prevent a smooth opening operation.

Japanese Patent No. 3984645

The main problem to be solved by the present invention is that, in this kind of movable body assist device, the backward movement operation of the movable body that has been forcibly moved to the movement end position can be performed as smoothly as possible. It is in.

In order to achieve the above object, according to the present invention, an assist device for a movable body is provided on either the support body or the movable body supported by the support body so as to be slidable. A device that captures the striker body provided in the movable body when the movable body reaches a predetermined position and forcibly moves the movable body to a movement end position,
It has a forced movement mechanism and a braking mechanism,
The forced movement mechanism includes a latch body that is supported by the apparatus base body so as to be slidable between a standby position and a retracted position, and a first biasing body that applies a biasing force toward the retracted position to the latch body that is in the standby position. The striker body is captured at the predetermined position by the latch body held at the standby position, and the movable body moves by the movement or relative movement of the latch body to the retracted position by the release of this holding triggered by the capture. It is moved to the end position, and when the movable body moves backward, the latch body releases the striker body at the predetermined position and is held again at the standby position.
The braking mechanism has a contact portion to the latch body that constitutes the forced movement mechanism, and has a structure that acts to resist the retraction of the contact portion that accompanies the movement of the latch body to the retracted position. A second biasing body that biases the abutting portion in the forward direction is provided.

When the movable body is forcibly moved from the predetermined position toward the movement end position, the latch body that has captured the striker body is relatively moved to the retracted position by the urging force of the first urging body, thereby contacting the movable body. Since the part is retracted, the fluid resistance of the braking mechanism acts as a braking force for this forced movement of the movable body. At this time, since the abutting portion is retracted, the second urging body urges the abutting portion in the forward direction, so that the urging force of the second urging body is also against the forced movement of the movable body. Acts as a braking force. Therefore, it is necessary to move the movable body at the movement end position backward with a force having a magnitude that causes accumulation in the first biasing body. When the movable body moves backward, the latch body moves toward the standby position. The contact portion is moved forward by the urging of the second urging body by the amount of movement, so that the fluid resistance of the braking mechanism is not applied to this backward operation of the movable body.

The two forced movement mechanisms are provided, and the two forced movement mechanisms are arranged so that the rear end sides of the latch bodies face each other.
Between the rear ends of the latch bodies of the two forced movement mechanisms, a contact portion is brought into contact with the rear end of the latch body of one of the forced movement mechanisms, and the rear end of the latch body of the other forced movement mechanism. A braking mechanism is interposed so as to contact or connect the facing portion that faces the contacting portion,
In some cases, the fluid resistance of the braking mechanism is applied to the retreat or relative retreat of the abutment that narrows the interval between the abutment and the facing portion.

In this case, when the movable body is slid to one side or to the other side opposite to the movable body, the first urging body is moved forward from the predetermined position through the fluid resistance. A braking force can be applied to the forced movement caused by the urging of.

The resistance generator in the braking mechanism is a damper that causes the fluid resistance of the fluid in the cylinder to act on the backward or relative backward movement of the piston, and at the protruding end of the piston rod or the protruding side of the piston rod in the damper. A contact portion may be formed at the outer end portion of the opposing cylinder.

In this case, the second urging body is placed between the inner part of the cylinder and the piston inside the cylinder, or between the cylinder and the latch body connected to the protruding end of the piston rod outside the cylinder. Sometimes intervened.

In this case, by moving the piston in accordance with the movement of the latch body constituting the forcible movement mechanism to the retracted position after capturing the striker body, the movement of the damper for moving the movable body is further achieved. A braking force can be applied.

Further, when the second urging body is interposed as described above, when the movable body moves backward, the piston is returned to the position before retreating by the second urging body, and the latch held again in the standby position. The contact portion of the braking mechanism can be brought into contact with or close to the rear end of the body.

Even when the resistance generator in the braking mechanism is a damper that causes the fluid resistance of the fluid in the stator to act on the rotation or relative rotation of the rotor, the same function as described above can be exhibited.

According to the movable body assist device of the present invention, when the movable body moves forward, the movable body can be forcibly moved from a predetermined position, and a braking force can be applied to the movement. It is possible to prevent the braking mechanism from acting on the backward movement operation of the movable body so that the backward movement can be performed as smoothly as possible.

FIG. 1 is a front configuration diagram showing a state in which a sliding door (movable body) provided with an assist device is in a neutral position. FIG. 2 is a front configuration diagram showing a state in which the sliding door (movable body) provided with the assist device has been moved from the state of FIG. 1 to the movement end position on the right side. FIG. 3 is a front configuration diagram showing a state in which the sliding door (movable body) provided with the assist device has been moved from the state of FIG. 1 to the movement end position on the left side. FIG. 4 is a perspective configuration diagram of the assist device. FIG. 5 is a longitudinal sectional view of the assist device, and both the left and right latch bodies are in the standby position. FIG. 6 is a partially broken plan configuration diagram of the assist device, and both the left and right latch bodies are in the standby position. FIG. 7 is a partially cutaway perspective view of the latch body. FIG. 8 is a perspective configuration diagram of the striker body and the latch body. FIG. 9 is a perspective configuration diagram of a main part at the left end of the apparatus base. FIG. 10 is a cross-sectional configuration diagram of the left end of the assist device, and the latch body is in the standby position. FIG. 11 is a cross-sectional configuration diagram of the left end of the assist device, and the latch body is in the process of relative movement toward the retracted position. FIG. 12 is a partially broken perspective configuration diagram of an example in which a part of the configuration of the assist device shown in FIGS. 1 to 11 is changed.

Hereinafter, a typical embodiment of the present invention will be described with reference to FIGS. The assist device A for the movable body M according to the present embodiment forcibly moves various movable bodies M from the predetermined position to the movement end position, and applies a braking force to the forced movement. is there. That is, the assist device A includes a forced movement mechanism 1 and a braking mechanism 2. The assist device A is provided and used on the movable body M side or on the support body F side that supports the movable body M so as to be slidable. A striker body S is provided on the side of the movable body M and the support body F where the assist device A is not provided.

In the illustrated example, the assist device A is configured by housing the forced movement mechanism 1 and the braking mechanism 2 in a device base 3 having an elongated case shape with an upper surface opening. The length direction of the apparatus base 3 coincides with the slide movement direction x of the movable body M. In this embodiment, an example is shown in which the assist device A assists the movement of the sliding door Ma as the movable body M. In the illustrated example, the assist device A is provided at the upper end of the sliding door Ma as the movable body M. And the said striker body S is provided in the upper sliding door groove | channel Fb of the door frame Fa as the support body F which supports the upper end part of this sliding door Ma.

The forced movement mechanism 1 includes a latch body 10 that is supported by the apparatus base 3 so as to be slidable between a standby position and a retracted position, and a first bias that applies a biasing force toward the retracted position to the latch body 10 in the standby position. And an urging body 11. Then, the striker body S is captured at the predetermined position by the latch body 10 held at the standby position, and the relative movement by the first urging body 11 of the latch body 10 to the retracted position due to the release is triggered by this capture. Thus, the movable body M is moved to the movement end position. At the same time, when the movable body M moves backward, the latch body 10 releases the striker body S at the predetermined position and is held again at the standby position.

In this embodiment, a groove Mb is formed in the upper end portion of the sliding door Ma as the movable body M over the upper end portion, and the device is located at a position approximately in the middle of the length of the groove Mb. By placing the base 3, the assist device A is arranged at a position approximately in the middle of the sliding door Ma in the left-right direction.

Further, in this embodiment, the assist device A is constituted by the two forced movement mechanisms 1 and 1 and the one braking mechanism 2. The braking mechanism 2 is disposed between the two forced moving mechanisms 1, 1, and in the illustrated example, the left and right forced moving mechanisms 1, 1. Further, the two forced movement mechanisms 1 and 1 are arranged so that the rear end 100 side of the latch body 10 constituting the two forced movement mechanisms 1 and 1 face each other. On the other hand, one striker body S is provided in each of the both sides of the upper sliding door groove Fb with a position in the middle of the left-right direction of the door frame Fa interposed therebetween. The dimension of the door frame Fa in the left-right direction is the dimension of approximately two sliding doors Ma. A state (neutral position) between the right end of the sliding door Ma and the door stop Fc on the right side of the door frame Fa and between the left end of the sliding door Ma and the door stop Fc on the left side of the door frame Fa (neutral position) The sliding door Ma is positioned between the left and right striker bodies S, and the latch bodies 10 of the left and right forced movement mechanisms 1 are both held at the standby position. (FIG. 1) The striker body S enters the assist device A through the groove Mb by the movement of the sliding door Ma, and comes out of the sliding door Ma through the groove Mb.

The latch body 10 of the right-hand forced movement mechanism 1 is held at the right end of the apparatus base 3 at the standby position, and captures the right striker body S at the predetermined position when the sliding door Ma moves to the right side. The sliding door Ma is forcibly moved to the right side to the movement end position where the right end of the sliding door Ma is brought into contact with the right-side door contact Fc of the door frame Fa. (FIG. 1 to FIG. 2) When the sliding door Ma is moved backward from the right side movement end position, that is, moved to the left side, the latch body 10 of the right side forced moving mechanism 1 is stored while the first urging body 11 is energized. Relatively moving toward the standby position, the right striker body S is released at the predetermined position and held again at the right end of the apparatus base 3. During this time, the latch body 10 of the left forced movement mechanism 1 is in the standby position and is continuously held at the left end of the apparatus base 3.

Further, the latch body 10 of the left side forced movement mechanism 1 is held at the left end of the apparatus base 3 at the standby position, and captures the left striker body S at the predetermined position when the sliding door Ma moves to the left side. As a result, the sliding door Ma is moved relative to the retracted position, whereby the sliding door Ma is forced to move to the left side to the movement end position where the left end of the sliding door Ma abuts against the door contact Fc on the left side of the door frame Fa. (FIGS. 1 to 3) When the sliding door Ma is moved backward from the left side movement end position, that is, moved to the right side, the latch body 10 of the left side forced moving mechanism 1 is stored in the first urging body 11 while being stored. The left striker body S is released at the predetermined position and is held at the left end of the apparatus base 3 again. During this time, the latch body 10 of the right forced movement mechanism 1 is in the standby position and is continuously held at the right end of the apparatus base 3.

On the other hand, the braking mechanism 2 includes a contact portion 20 with respect to the latch body 10 that constitutes the forced movement mechanism 1, and acts to resist retraction of the contact portion 20 as the latch body 10 moves to the retracted position. It is the composition which makes it. At the same time, the braking mechanism 2 includes a second urging body 21 that urges the contact portion 20 in the forward direction.

In this embodiment, between the rear ends 100 of the latch bodies 10 of the two forced movement mechanisms 1, 1, the latch body 10 of one of the forced movement mechanisms 1, the right side forced movement mechanism 1 in the illustrated example. The abutting portion 20 is brought into contact with the rear end 100 of the latch body 10, and the latch body 10 of the other forced movement mechanism 1, in the illustrated example, the rear end 100 of the latch body 10 of the left forced movement mechanism 1 The braking mechanism 2 is interposed so as to connect the facing portion 22 facing the contact portion 20. The fluid resistance of the braking mechanism 2 is applied to the retreat or relative retreat of the contact portion 20 that narrows the interval between the contact portion 20 and the facing portion 22. Here, the relative retreat means that the abutting portion 22 moves in a direction approaching the abutting portion 20 without moving the abutting portion 20.

Thereby, in this embodiment, the sliding door Ma as the movable body M is slid to one side or the other side opposite to the sliding door Ma from the predetermined position. Then, a braking force can be applied to the forced movement of the first urging body 11 through the fluid resistance.

When the movable body M is forcibly moved from the predetermined position toward the movement end position, the latch body 10 that has captured the striker body S is relatively moved to the retracted position by the urging of the first urging body 11, As a result, the abutting portion 20 is retracted, and the fluid resistance of the braking mechanism 2 acts as a braking force on the forced movement of the movable body M. At this time, when the abutting portion 20 is retracted, the second urging body 21 urges the abutting portion 20 in the forward direction, so that the urging force of the second urging body 21 is also applied to the movable body M. Acts as a braking force against forced movement. Therefore, the movable body M at the movement end position needs to be moved backward with a force having a magnitude that causes accumulation in the first urging body 11. In the example shown in the drawing, the sliding door Ma that abuts the right end or the left end against the right or left door contact Fc can be opened unless a force of a magnitude that causes accumulation of energy to the first biasing body 11 is applied. Can not. In this embodiment, since the latch body 10 moves toward the standby position when the movable body M moves backward, the contact portion 20 is advanced by the bias of the second biasing body 21. When the abutting portion 20 moves forward, the fluid resistance of the braking mechanism 2 is not applied to the backward operation of the movable body M.

When the assist device A is provided on the door frame Fa side as the support body F separately from the illustrated example, the striker bodies S are provided on the left and right of the upper end portion of the sliding door Ma as the movable body M. In this case, when closing the sliding door Ma to the right side, the left striker body S of the sliding door Ma is captured by the left latch body 10 of the assist device A at a predetermined position, and the first attachment to the right side of the latch body 10 is performed. The sliding door Ma is forcibly moved to the right side by the urging movement by the stance body 11. When the sliding door Ma is closed to the left side, the right striker body S of the sliding door Ma is captured by the right latch body 10 of the assist device A at a predetermined position, and the first biasing body 11 to the left side of the latch body 10 is captured. The sliding door Ma is forcibly moved to the left side by the urging movement by.

In the illustrated example, the latch body 10 constituting the forced movement mechanism 1 includes a latch base 101, a catcher 102, and a plunger 103. The latch body 10 of the right forced moving mechanism 1 and the latch body 10 of the left forced moving mechanism 1 have substantially the same components. 7, 8, 10, and 11, only the left latch body 10 is illustrated, and the right latch body 10 is not illustrated.

In the illustrated example, the apparatus base 3 includes an upper chamber 31 having the partition portion 30 as a bottom surface and a lower portion having the partition portion 30 as a top surface by a partition portion 30 formed at a position approximately in the middle of the vertical direction. It is divided into chambers 32. The left and right ends of the upper chamber 31 are open to the outside. As a result, the striker body S enters the upper chamber 31 at the predetermined position through the groove Mb formed at the upper end of the sliding door Ma, and is captured by the latch body 10 at the standby position, specifically, the catcher 102. It has come to be. The latch base 101 has a width that fits between the pair of side walls 33, 33 (side walls 33 in a direction orthogonal to the sliding movement direction of the latch body 10) forming the upper chamber 31 of the apparatus base 3 with little clearance. In addition, the latch base 101 is located at a position approximately in the middle of the length direction from the front side (the latch body 10 of the right side forced moving mechanism 1, the side positioned at the right end of the apparatus base 3, the left side of the forced moving mechanism 1. In the case of the latch body 10, the side located on the left end of the apparatus base 3 is used as the incorporating portion 101 a of the catcher 102 and the plunger 103.

The partition part 30 is formed with a dividing groove 30a along the movement center line y of the latch body 10. On the other hand, the latch base 101 is provided with a mounting portion 101b that enters the lower chamber 32 through the dividing groove 30a. In the illustrated example, the mounting portion 101b of the latch base 101 that constitutes the latch body 10 of the right forced moving mechanism 1 and the mounting portion 101b of the latch base 101 that constitutes the latch body 10 of the left forced moving mechanism 1 are They are connected via a tension coil spring 110 housed in the lower chamber 32. (FIG. 5) By this tension coil spring 110, the latch body 10 of the right forced movement mechanism 1 approaches the latch body 10 of the left forced movement mechanism 1 when the holding at the standby position is released triggered by the capture of the striker body S. The latch body 10 of the left forced movement mechanism 1 is moved relative to the direction, and when the holding at the standby position is released triggered by the capture of the striker body S, the latch body 10 of the right forced movement mechanism 1 approaches. It is designed to move relative to the direction. That is, in the illustrated example, the tension coil spring 110 functions as the first biasing body 11.

In the illustrated example, the catcher 102 includes a pair of sandwiching

pieces

102 a and 102 a that are rotatably combined with the front end of the latch base 101. Each of the pair of sandwiching

pieces

102a and 102a is configured to have a long plate shape in the sliding movement direction of the latch body 10, that is, the sliding movement direction x of the movable body M, and in the length direction at the front end of the latch base 101. They are combined so as to be rotatable with a longitudinal shaft 102b at a substantially middle position.

On the other hand, the plunger 103 is supported by the built-in portion 101a so as to be movable back and forth between the pair of sandwiching

pieces

102a and 102a. The plunger 103 includes an engaging portion 103a for the engaged portion 102c formed between the front and rear ends of the plunger 103 at a position located behind the rotation center of the pair of sandwiching

pieces

102a and 102a. The plunger 103 is constantly subjected to a forward biasing force by a compression coil spring 104 housed in the built-in portion 101a. Further, a location (front end 103b) of the plunger 103 positioned in front of the engaging portion 103a passes through the rotation center of the pair of sandwiching

pieces

102a and 102a, and the front ends of the pair of sandwiching

pieces

102a and 102a. It is always located between the parts. (FIGS. 10 and 11)

At both left and right ends of the apparatus base 3, window holes 34 are formed in the

side walls

33, 33 of the upper chamber 31 so that the front ends of the pair of sandwiching

pieces

102a, 102a are accommodated. At the same time, the dividing groove 30a is widened at both the left and right end portions of the apparatus base 3, and the engaging portion 30c in the direction perpendicular to the sliding movement direction of the latch body 10 is formed by the widened portion 30b. Are formed on both sides of the moving center line y.

In the illustrated example, when the latch body 10 is in the standby position, the engaged portion 102c is pushed from the rear by the engaging portion 103a of the plunger 103 that is constantly biased as described above, and the catcher The pair of sandwiching

pieces

102a and 102a constituting the pair 102 has their front end portions accommodated in the window holes 34, the distance between the pair of sandwiching

pieces

102a and 102a is increased toward the front end, and the head end is moved toward the rear end. Thus, the posture between the pair of sandwiching

pieces

102a and 102a is held in a posture to narrow the gap. (FIG. 11) In this state, the hooked portion 102e formed at the front end of the pair of sandwiching

pieces

102a and 102a is located in front of the hooking portion 30c and is biased by the first biasing body 11. It has become caught in this. Thereby, the state in which the latch body 10 is in the standby position is held.

Then, when the sliding door Ma as the movable body M is moved to the predetermined position from the state where the latch body 10 is in the standby position in this way, that is, the sliding door Ma is moved to the right side and the standby position on the right side of the assist device A. The striker body S installed on the right side is captured by the latch body 10 held on the left side, or the sliding door Ma is moved to the left side and is held at the standby position on the left side of the assist device A. When the striker body S installed on the left side is caught by the latch body 10, the plate surface is formed along the moving direction of the movable body M between the pair of sandwiching

pieces

102 a and 102 a constituting the catcher 102. The plate-like striker body S enters and presses the front end 103b of the plunger 103. By this pressing, the plunger 103 moves backward while accumulating the compression coil spring 104, and the rear end side of the pair of sandwiching

pieces

102a, 102a is pushed by the contact portion 20 of the plunger 103 moved back in this way. The pair of sandwiching

pieces

102a and 102a are rotated in a direction to close the front end side between the sandwiching

pieces

102a and 102a. (FIGS. 10 to 11) In the illustrated example, a hook portion 102d is formed inside the front ends of the pair of sandwiching

pieces

102a, 102a, and the striker body S has a hook portion Sa into which the hook portion 102d enters and is caught. Thus, when the front end side of the pair of sandwiching

pieces

102a, 102a is closed in this way, the sandwiching piece 102a is inserted into the hole Sa of the striker body S that has entered between the front end sides of the pair of sandwiching

pieces

102a, 102a. The hook portion 102d is engaged. As a result, the striker body S is captured by the latch body 10 at the predetermined position.

In the illustrated example, when the striker body S is captured by the latch body 10 in this manner, the hooked portions 102e formed at the front ends of the pair of sandwiching

pieces

102a and 102a are respectively on the movement center line y of the latch body 10. By being moved, the hooked portion 102e reaches a position where it enters the split groove 30a. (FIG. 11) Thereby, the engagement between the engagement portion 30c and the engagement portion 102e is released, that is, the holding of the latch body 10 in the standby position is released. When the hooked portion 102e reaches the position where it enters the split groove 30a, the latch body 10 is relatively moved to the retracted position by the urging of the first urging body 11, and the pair of clamping

pieces

102a, 102a Is held between the side walls 33 of the upper chamber 31 of the apparatus base 3 and the front end side thereof is closed, and the pair of holding

pieces

102a and 102a are moved to the movement end position by the movement dimension sliding door Ma being moved forward. It has come to.

When the sliding door Ma that has reached the movement end position is moved back, the latch body 10 that has captured the striker body S is relatively moved toward the standby position while accumulating the first urging body 11. When the sliding door Ma reaches the predetermined position again by this backward movement, the striker body S receives the action of the force in the direction of coming out from between the pair of sandwiching

pieces

102a, 102a, so that the plunger 103 by the biasing of the compression coil spring 110 is applied. The pair of sandwiching

pieces

102a, 102a constituting the catcher 102 by opening the plunger 103 is accommodated in the window hole 34 to open the front end side to release the striker body S. The hooked portion 102e is again hooked on the hooking portion 30c and held at the standby position. (FIGS. 11 to 10)

In the example shown in FIGS. 1 to 11, the resistance generator 23 in the braking mechanism 2 is a damper 230 that causes the fluid resistance of the fluid in the cylinder 230a to act on the retraction or relative retraction of a piston (not shown). Such a damper 230 is called a piston damper or the like. As such a fluid, a viscous fluid such as silicon oil is typically used, but this may be a gas. The piston is accommodated in the cylinder 230a so as to reciprocate on the movement center line y of the latch body 10. A piston rod 230b is connected to this piston. In this example, the outer end of the cylinder 230a facing the protruding side of the piston rod 230b in this damper is one latch body 10 of the two forced movement mechanisms 1, 1 (the right latch body in FIG. 5). 10) The abutting portion 20 to the rear end 100 is provided. In this example, the tip of the piston rod 230b is a facing portion 22 connected to the rear end of the other latch body 10 (the left-side latch body 10 in FIG. 5) of the two forced movement mechanisms 1, 1. ing.

Thereby, in this example, the piston is moved in accordance with the movement to the retracted position after the striker body S of one of the two forced movement mechanisms 1 and 1 is captured. The braking force of the damper 230 applied to this movement and further the movement of the movable body M can be applied.

In this example, the second urging body 21 is interposed between the cylinder 230a and the latch body 10 connected to the protruding end of the piston rod 230b outside the cylinder 230a. In this example, the second biasing body 21 has one end of the spring abutted against the outer end of the cylinder 230a on the protruding side of the piston rod 230b, and the other end of the spring is passed through the piston rod 230b on the inside. The compression coil spring 21a is abutted against a step portion 101c formed at a position approximately in the middle of the length of the latch base 101 of the latch body 10 located on the left side of FIG.

Thus, in this example, when the movable body M moves backward, the second urging body 21 returns the piston to the position before retraction, and the rear end of the latch body 10 held again at the standby position. The contact portion 20 of the braking mechanism 2 can be brought into contact with or close to 100 again.

In addition to the illustrated example, the second biasing body 21 may be a compression coil spring disposed inside the cylinder 230a and between the inner back portion of the cylinder 230a and the piston.

In the example shown in FIG. 12, the resistance generator 23 in the braking mechanism 2 is a damper 231 that applies the fluid resistance of the fluid in the stator 231a to the rotation or relative rotation of a rotor (not shown). Such a damper 231 is referred to as a rotary damper or the like. In this example, the braking mechanism 2 has a long and narrow front end that is a contact portion 20 to the rear end 100 of one of the two forced moving mechanisms 1 and 1 (the right latch body 10 in FIG. 12). A first member 24 and a second member 25 whose front end is a facing portion 22 connected to the rear end of the other latch body 10 (the left-side latch body 10 in FIG. 12) of the two forced movement mechanisms 1 and 1. And. Both

members

24 and 25 are accommodated in the apparatus base 3 so as to be movable along the movement center line y of the latch body 10. In this example, a compression coil spring 21a serving as the second urging body 21 is provided between the rear end 24a of the first member 24 and the rear end 100 of the other latch body 10 of the two forced movement mechanisms 1,1. It is intervened. In addition, the stator 231a of the damper 231 is fixed at the rear end of the second member 25 so that the rotation axis of the rotor is arranged in a direction orthogonal to the movement center line y and in a horizontal direction. A pinion 231b is provided at the outer end of the rotor. On the other hand, a rack 24b that meshes with the lower end of the pinion 231b is formed between the front end and the rear end 24a of the first member 24. When one latch body 10 (the right-side latch body 10 in FIG. 12) of the two forced movement mechanisms 1 and 1 moves relative to the retracted position, the other latch body 10 held at the standby position. Since the latch body 10 on the left side in FIG. 12 does not move, the damper 231 is moved by the relative movement of the one latch body 10 to the left side in FIG. 12, that is, the forward movement of the movable body M to the right side in FIG. The braking force is applied. When the movable body M at the movement end position is moved backward toward the left side in FIG. 12, the latch body 10 is relatively moved to the right side in FIG. The first member 24 is also moved to the right side in FIG. The same operation that reverses the direction of the operation of the right latch body 10 in FIG. 12 described above is performed by the other latch body 10 (the left latch body 10 in FIG. 12) of the two forced movement mechanisms 1 and 1. This is performed when the movable body M moves forward to the left in FIG. 12 and when the movable body M returns from the movement end position.
The entire contents of the specification, claims, drawings and abstract of Japanese Patent Application No. 2009-168474, filed on July 17, 2009, are incorporated herein as the disclosure of the specification of the present invention. Is.

Claims

Either the support body or the movable body supported by the support body so as to be slidable is provided, and the other striker body is captured when the movable body reaches a predetermined position. A device for forcibly moving the body to the end position of movement,
It has a forced movement mechanism and a braking mechanism,
The forced movement mechanism includes a latch body that is supported by the apparatus base so as to be slidable between a standby position and a retracted position, and a first biasing body that applies a biasing force toward the retracted position to the latch body that is in the standby position. The striker body is captured at the predetermined position by the latch body held at the standby position, and the movable body moves by the movement or relative movement of the latch body to the retracted position by the release of this holding triggered by the capture. It is moved to the end position, and when the movable body returns, the latch body releases the striker body at the predetermined position and is held again at the standby position.
The braking mechanism has a contact portion to the latch body that constitutes the forced movement mechanism, and has a structure that acts to resist the retraction of the contact portion that accompanies the movement of the latch body to the retracted position. A movable body assist device comprising a second urging body that urges the contact portion in a forward direction.
While arranging the two forced movement mechanisms so that the rear end side of the latch body faces,
Between the rear ends of the latch bodies of the two forced movement mechanisms, a contact portion is brought into contact with the rear end of the latch body of one of the forced movement mechanisms, and the rear end of the latch body of the other forced movement mechanism. A braking mechanism is interposed so as to contact or connect the facing portion that faces the contacting portion,
2. The fluid resistance of the braking mechanism is applied to a backward or relative backward movement of the contact portion that narrows the interval between the contact portion and the facing portion. Assist device for movable bodies.
The resistance generator in the braking mechanism is a damper that causes the fluid resistance of the fluid in the cylinder to act on the piston retreating or relative retreating, and is opposed to the protruding end of the piston rod or the protruding side of the piston rod in this damper The assisting device for a movable body according to claim 1 or 2, wherein a contact portion is formed at an outer end portion of the cylinder.
A second biasing body is interposed between the inner part of the cylinder and the piston inside the cylinder, or between the cylinder and a latch body connected to the protruding end of the piston rod on the outer side of the cylinder. The assist device for a movable body according to claim 3, wherein the assist device is movable.
The assist device for a movable body according to claim 1 or 2, wherein the resistance generator in the braking mechanism is a damper that causes the fluid resistance of the fluid in the stator to act on the rotation or relative rotation of the rotor. .