KR20060117268A - Opening and closing device with lock - Google Patents

Abstract

An opening/closing apparatus with a lock is provided to prevent unintended release of the locking state even when an actuator loses the driving force in a closed locking state. An opening/closing apparatus with a lock includes a rack pinion mechanism(10), an actuator, a planetary gear mechanism(20), and a lock mechanism(30). The power of the actuator is distributed to the pinion through the planetary gear mechanism when a sliding door is not at a fully closing position. The power of the actuator is distributed to a conversion lever converting the locking state and the lock releasing state of the lock mechanism through the planetary gear mechanism when the sliding door is at the fully closing position.

Description

Opening and shutting device with lock {OPENING AND CLOSING DEVICE WITH LOCK}

BRIEF DESCRIPTION OF THE DRAWINGS The whole front view which shows embodiment which provided the opening / closing lock apparatus in the vehicle opening / closing door.

2 is an essential part front view showing the configuration of the lock mechanism and the planetary gear mechanism in the unlocked state;

3 is an essential part front view showing a state in which the lock mechanism is switched to the locked state by driving the sun gear in the door closing direction from the state of FIG.

4 is an essential part front view showing the shape after the sun gear is further driven in the door closing direction to be in a locked state;

<Explanation of symbols for main parts of drawing>

One… Door 2. Guide rail

7 · 7... Rack 9... Pinion

10... Rakpinion Organization 11 · 12... Sliding door

20... Planetary gear mechanism 21. Sun gear

22... Carrier 23.. Internal gear

30... Lock mechanism 31.. Lock link (rotational member)

32... Lock lever (moving member) 33.. Lock plate (changeover lever)

This invention relates to the structure of the lock opening / closing apparatus which can open and close a sliding door, and can lock in a fully closed position.

This kind of lock switchgear is disclosed as patent document 1 as 2nd Embodiment, for example. In the structure of this patent document 1, when two sliding doors are connected through a rack pinion mechanism, it is set as both opening and closing doors, and the rail moving body which suspends this sliding door, and the movable motor of the linear motor for opening / closing driving of a sliding door are buffer springs. Is configured to be connected via a buffer containing a. In addition, the linear motor drives the mover to move the sliding door in the closing direction, and drives the mover to further extend the spring of the shock absorber even when the sliding door reaches the fully closed position. In this case, an extrusion bracket provided at the tip of the mover pushes the slide cam device against the return spring and slides it, and thus the descending cam follower lowers the latch lock. Is caught in the hole formed in the rack of the rack pinion mechanism, and thus the lock of the sliding door in the fully closed position is realized.

In this configuration, the driving force of the linear motor is normally distributed for opening and closing driving of the sliding door through the buffer spring of the shock absorber, while the driving force of the linear motor is distributed to the slide cam device when the sliding door reaches the fully closed position, Locking is done. That is, the driving force of a single linear motor (actuator) is configured to be used for both the opening and closing driving of the sliding door and the lock operation, which has the advantage of simplifying the configuration.

(Patent Document 1) Japanese Patent Application Laid-Open No. 2000-142392 (0040 to 0054, FIGS. 6 to 13, rail moving body 3b, mover 6a, shock absorber 12, spring (buffer spring) 12b) , An extrusion bracket 14a, a slide cam device 13b, a spring (return spring) 13c, a cam follower 13e, a latch lock 13g, and a hole 7e formed in the rack)

However, the structure of the said patent document 1 is comprised so that the buffer body which is a mechanism which distributes and distributes the driving force of a linear motor to the opening-closing drive of a sliding door, and the pressure of a slide cam apparatus, may slide and move with a sliding door. As a result, the overall configuration becomes complicated, and it is necessary to secure a space for the movable stroke of the shock absorber, and a simple and compact configuration of the sliding door lock device cannot be realized.

Moreover, since the structure of patent document 1 is a structure which pushes the slide cam apparatus by extending the buffer spring of a buffer body in the fully closed position of a sliding door, for example, the load by a wind pressure etc. to a door immediately before a fully closed position ( If a resistance to closure is applied, the cushioning spring will stretch before the sliding door reaches its fully closed position. As a result, the extrusion bracket at the tip of the mover pushes the slide cam device at an early stage, and the latch lock is lowered even if the position of the latch lock and the hole of the rack do not coincide. There was a fear of being confined before the stage of reaching the fully closed position (open state).

Also, in the closed lock of the sliding door, when the linear motor loses the driving force due to a failure of the linear motor or a power failure due to a power failure, the movable member and the extrusion bracket are pushed by the slide cam device by the buffer spring. In addition to being tensioned in the releasing direction, the slide cam device is also returned by the return spring, so that the latch lock is raised together with the cam follower, and the lock is released. This means that the closing lock is released inadvertently during a failure or power failure.

In addition, in order to prevent the latch lock from descending too quickly even if a slight load is applied to the sliding door, when the above-mentioned buffer spring is made strong, it acts in the direction of unlocking when the driving force of the linear motor is lost due to power failure. Also, the stronger the locking force, the greater the risk of inadvertent lock release. In other words, the above-described two problems are in conflict with each other, and no constitution has yet been proposed in which both problems can be solved at the same level.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object thereof is to provide a simple and compact configuration in a lock opening and closing device for opening and closing of a sliding door with a single actuator. Further, another object of the present invention is to prevent the lock from being performed before the sliding door driven in the closing direction reaches the fully closed position, and at the same time, even if the actuator loses the driving force in the closed lock state, unintended lock release It is to provide a configuration that can prevent the.

The problem to be solved of the present invention is as described above. Next, the means for solving this problem and its effect will be described.

◆ According to the viewpoint of this invention, the switchgear with lock comprised as follows is provided. A rack pinion mechanism comprising a rack attached to a sliding door reciprocating and a pinion engaged with the rack, an actuator as an opening and closing drive source of the sliding door, a planetary gear mechanism to which the driving force of the actuator is input, and the sliding door is locked in the fully closed position. It is possible to have a lock mechanism. When the sliding door is outside the fully closed position, the power of the actuator is distributed to the pinion via the planetary gear mechanism. When the sliding door is in the fully closed position, the power of the actuator is distributed through the planetary gear mechanism to the switching lever for switching the locked state and the unlocked state of the lock mechanism.

In this configuration, the power of the actuator is distributed through the planetary gear mechanism, one driving the pinion of the rack pinion mechanism, and the other driving the switching lever. Therefore, since the structure for power transmission (distribution) from the actuator is stored in a compact space, the structure can be simplified and a compact lock opening and closing device can be provided.

Moreover, since the distribution of the driving force from the actuator is performed using the planetary gear mechanism instead of the shock absorbing spring like Patent Document 1, even when the actuator loses the driving force due to a failure or the like while the sliding door is locked in the closed position, the switching lever is locked. Force in the release direction is not applied, and unintended lock release is prevented.

In the lock opening / closing device described above, the lock mechanism is configured to prevent the shifting of the shift lever when the sliding door is outside the fully closed position, and to permit the shift of the shift lever when the shift lever is in the fully closed position. It is preferable that it is done.

In this configuration, since the movement of the switching lever is prevented when the sliding door is outside the fully closed position, the lock operation is performed after the sliding door has securely reached the fully closed position. That is, the lock operation is performed at an earlier timing when the sliding door is driven in the closing direction, thereby preventing the locking mechanism from being broken or the sliding door being restrained immediately before being fully closed.

◆ In said opening / closing apparatus with lock, it is preferable to comprise as follows. The lock mechanism is provided with a cam, and the cam is provided with a projection which prevents the switch from the locked release state to the locked state. This projection can be carried over only when the sliding door driven in the closing direction by the actuator in the lock release state reaches or close to the fully closed position, and the turning over allows the movement of the switching lever.

Thereby, the simple structure which can prevent the premature lock | lock at the time of driving a sliding door in a closing direction can be implement | achieved.

◆ In said opening / closing apparatus with lock, it is preferable to comprise as follows. The locking mechanism is engaged with the sliding member in the vicinity of the fully closed position, connected to the rotating member that rotates in accordance with the opening and closing movement of the sliding door, and is connected via the switching lever and the cam. And a lock position for regulating the rotation of the pivot member at the position when the sliding door is in the fully closed position, and a movable member movable between the position out of the lock position. The switching lever is configured to realize the lock state by fixing the movable member in the locked position, and to realize the lock release state by releasing the fixation of the movable member in the locked position. The projection of the cam is configured to be capable of riding over by the rotation of the rotating member based on the movement in the closing direction of the sliding door.

Thereby, the double lock structure which locks the sliding door and fixes (locks) the moving member by locking the rotation of the rotation member by the moving member is implement | achieved. Therefore, even if the actuator loses the driving force due to a failure or the like while the sliding door is closed, the unlocking of the sliding door against the intention is very surely prevented.

In addition, since the skipping of the projection (that is, allowing the shifting of the switching lever) is performed by the rotation of the rotating member, it is ensured that the shifting of the switching lever is performed in the vicinity of the fully closed position. That is, too early locks are more certainly prevented.

Next, embodiments of the invention will be described. BRIEF DESCRIPTION OF THE DRAWINGS It is the front view which showed embodiment which provided the opening / closing apparatus with lock in the opening / closing door for vehicles. 2 is an essential part front view showing the configuration of the lock mechanism and the planetary gear mechanism in the unlocked state.

The vehicle opening / closing door shown in FIG. 1 is constituted as a side door capable of opening and closing an opening formed in a side wall of a vehicle such as a railroad car, and includes a pair of left and right pairs of sliding doors 11 · 12 of both opening types. These two sliding doors 11 and 12 are provided so as to reciprocate along the guide rails 2 provided horizontally above the openings. More specifically, two hangers 3 are fixed to the upper edge of each of the sliding doors 11 and 12, and a door car 4 is rotatably supported on each hanger 3. It is. The door roller 4 is configured to be rotatable on the guide rail 2.

And this opening / closing door is opened and closed by the lock opening / closing apparatus which concerns on one Embodiment of this invention, and can be automatically locked so that it may not open suddenly in a closed state. The door of a vehicle such as a railroad car is dangerous if it is opened while driving, and it is required to make sure that it is not suddenly opened while driving.

It will be described in detail below. A plate-shaped base 5 is fixed to the upper part of the side wall of the vehicle (upper space of the opening), and two racks are attached to the rack support 6 · 6 fixed to the base 5. 7 · 7) is supported. The rack 7 · 7 is supported by the slide supporter 8 so that its longitudinal direction is disposed horizontally (parallel to the guide rail 2) and slidable in the longitudinal direction (horizontal direction). have.

The two racks 7 · 7 are arranged in parallel with each other while forming an appropriate gap in the vertical direction, and the teeth are disposed so as to face each other. And the pinion 9 is rotatably arrange | positioned so that it may engage at the tooth part of both rack 7 * 7 simultaneously. This pinion 9 is a left-right center position above the opening part of the opening-closing door 1, and is arrange | positioned in the position which the upper and lower sides were sandwiched between two racks 7 * 7.

One end of each of the two racks 7 · 7 is connected to the corresponding sliding door 11 · 12 via an arm member 13 · 13 fixed to the hanger 3 in front of the door. The rack 7 · 7 and the pinion 9 constitute the rack pinion mechanism 10, and the two sliding doors 11 · 12 are opened and closed by the rack pinion mechanism 10. FIG. The rack pinion mechanism 10 also serves to realize symmetrical opening and closing of the sliding door 11 · 12 by connecting the left and right sliding doors 11 · 12.

In addition, the planetary gear mechanism 20 is supported by the base 5. As shown schematically in FIG. 2, the planetary gear mechanism 20 is provided with a plurality of sun gears 21 rotatably axially supported on the outer circumference of the sun gear 21, and sun gears 21. And a planetary gear 24 capable of rotating and rotating, a carrier 22 rotatably supporting the planetary gear 24, and an outer meshing with the planetary gear 24. It has an internal gear 23 having internal teeth. The three members of the sun gear 21, the carrier 22, and the internal gear 23 are arranged on the same axis and arranged so as to be rotatable relative to each other. Moreover, the said 3rd axis line coincides with the axis line of the pinion 9 of the rack pinion mechanism 10 mentioned above.

The sunshaft 21 is connected to an output shaft of an electric motor (actuator) of a direct drive method (not shown) capable of forward and reverse rotation. Moreover, you may connect via an appropriate deceleration mechanism. Moreover, the said internal gear 23 is connected to the pinion 9 of the rack pinion mechanism 10 mentioned above through the bolt etc. which are not shown in figure. Moreover, the said carrier 22 is connected to the lock plate (switching lever) 33 which comprises the lock mechanism 30 mentioned later.

Next, the lock mechanism 30 of the opening / closing door 1 will be described in detail. As shown in FIG. 1 and FIG. 2, the lock mechanism 30 is similar to the base body 5, similar to the flat lock link (rotational member) 31 pivotally supported on the base 5. The rock-shaped lock lever (moving member) 32, the lock plate 33, and the catch roller 34 mentioned above are pivotally supported as pivotal structures. This lock mechanism 30 is located below the planetary gear mechanism 20.

As shown in FIG. 2, the lock link 31 is pivotally supported at a central portion thereof through the support shaft 41 with respect to the base 5, and at one end of the lock portion 31, on the other side. It is comprised including the roller insertion part 43, respectively. The detachable part 42 is a recessed notch and is comprised so that engagement with the said catch roller 34 attached to the sliding door 11 of one side is possible. Moreover, the roller insertion part 43 also has a recessed notch, and inserts the 1st roller 51 mentioned later supported by the lock lever 32 inside. The roller insertion part 43 is provided with the rotation stopper 49 which can face the 1st roller 51 in the side far from the support shaft 41.

The lock lever 32 is pivotally supported to one end of the base 5 via the support shaft 44, and is provided with two rollers 51 · 52 on the other end side. Specifically, the first roller 51 is supported on one side of the front end of the lock lever 32 (inside the paper in Fig. 2), and the second roller 52 is supported on the other side (front of the paper in Fig. 2). have. The first roller 51 is inserted into the roller inserting portion 43 of the lock link 31.

A restricting plate 45 is fixed to the lock lever 32, and the restricting plate 45 is located inside the substantially fan-shaped restricting hole 46 formed in the base 5. The range of swing angles of the lock lever 32 is defined by the restricting plate 45 and the restricting hole 46. In addition, a torsion coil spring type elastic pressing spring is disposed at the position of the support shaft 44 (not shown), and the elastic pressing spring locks the clockwise elastic pressing force in FIG. 2 to the lock lever 32. It is always working.

The lock plate 33 is a wide lever-shaped member fixed to the carrier 22 of the planetary gear mechanism 20 and extends downward from the planetary gear mechanism 20. In addition, the lock plate 33 is formed with a curved hole (cam) 47 having a shape that is almost vertically curved. Then, the second roller 52 of the lock lever 32 described above is inserted into the curved hole 47.

The curved hole 47 has a diameter at the tip end side of the lock plate 33 and the rotation stopper portion 47a extending in the circumferential direction (approximately horizontal direction) from the base end side of the lock plate 33. It is a hole with constant width which connected the rotation allowance 47b which extends substantially downward in the direction to each other. In other words, the protrusion 47c is formed in the part (part corresponding to the inner periphery of the curved part) to which the rotation stopping part 47a and the rotation allowable part 47b are connected, and the protrusion 47c is the second roller. It is comprised so that the movement from the rotation stop part 47a of 52 to the rotation allowance part 47b may be prevented.

In addition, in FIGS. 2-4, the lock plate 33 and the curved hole 47 are shown with the dashed line in order to make understanding of a structure easy.

In addition, as shown in FIG. 1, the bracket 35 is fixed to the arm member 13 in the sliding door 11 of one side, and the front end of this bracket 35 is pulled out also to the center side, and to the front end. The catch roller 34 is rotatably supported. This catch roller 34 moves along the guide rail 2 with the sliding door 11, and when the sliding door 11 · 12 is in the close position, the detachable part 42 of the lock link 31 is carried out. It is configured to be located in the neighborhood of).

The above is the structure of the sliding door opening and closing lock device, and next, the opening and closing and locking operation of the sliding door 11 · 12 in this structure will be described with reference to FIGS. 2 to 4. 3 is an essential part front view showing a state in which the sun gear is driven in the door closing direction from the state of FIG. 2 and the lock mechanism is switched to the locked state. 4 is an essential part front view showing a shape after the sun gear is further driven in the door closing direction and switched to the locked state.

2, the lock mechanism 30 is in the unlocked state. In this state, the attaching and detaching part 42 of the lock link 31 is not engaged with the catch roller 34. In addition, the lock lever 32 is in an attitude as shown in FIG. 2 inclined slightly downward by the action of the elastic pressure spring described above. Moreover, since the bottom part of the roller insertion part 43 is pushed downward by the 1st roller 51 of the said lock lever 32, the lock link 31 also becomes inclined attitude as shown in FIG. Reference numeral 48 in FIG. 2 denotes a stopper fixed to the base 5 to regulate one side of the rotation angle range of the lock link 31.

Moreover, in this lock release state, the 2nd roller 52 of the lock lever 32 is located in the edge part by the rotation stop part 47a side of the curved hole 47 in the lock plate 33. As shown in FIG. And as shown in FIG. 2, the line which connects the center of the 2nd roller 52 of the lock lever 32, and the center of the support shaft 44 in this lock release state is idle of the planetary gear 24. As shown in FIG. It is almost coincident with the tangential direction of the circle. That is, it becomes a dead point. Therefore, when the sun gear 21 of the planetary gear mechanism 20 is driven by the electric motor in the unlocked state of FIG. 2, since the planetary gear 24 only rotates without revolving, The driving force of the sun gear 21 is all transmitted (distributed) to the pinion 9 via the internal gear 23, so that the sliding door 11 占 is opened and closed.

In particular, even if the sliding door 11 · 12 is driven in the closing direction, the second roller 52 cannot ride over the protrusion 47c in the curved hole 47, so that the rotation of the lock plate 33 is blocked. As a result, the carrier 22 connected to the lock plate 33 is also prevented from rotating. Therefore, in the stage where the sliding door 11 占 does not reach the vicinity of the fully closed position, all of the driving force of the sun gear 21 is distributed to the pinion 9. In other words, the switch from the unlocked state to the locked state is prevented by the projection 47c except when the sliding door 11 · 12 is in the vicinity of the fully closed position. This means that the early lock which is concerned about the structure of the said patent document 1 can be reliably prevented by the structure of this embodiment.

Next, as a result of the sun gear 21 being driven in the direction of closing the sliding door 11 · 12, the sliding door 11 · 12 approaches the fully closed position, and the catch roller 34 attached to the sliding door 11 It is assumed that the detachable portion 42 of the lock link 31 is approached as indicated by the thick line arrow in FIG. And when the sun gear 21 (sliding 11 * 12) is further driven from the state of FIG. 2 in the closing direction, the catch roller 34 which moves to a thick line arrow direction will engage with the detachable part 42. FIG. The lock link 31 is rotated as shown in Fig. 3 while being pulled out (catched by the attaching and detaching portion 42).

When the lock link 31 rotates, the bottom surface of the roller inserting portion 43 pushes up the first roller 51 of the lock lever 32, so that the lock lever 32 is elastic as shown in FIG. It rotates upwards in response to the pressure spring, and becomes almost horizontal. At the same time, the lock link 31 also rotates in the standing direction. When the sliding doors 11 and 12 reach the fully closed position, the lock link 31 is in a substantially vertical position, and the rotary stopper 49 provided on the roller inserting portion 43 is the first roller of the lock lever 32. Face 51 (FIG. 3 shows a state just before facing). Since the counterclockwise rotation of the lock link 31 is regulated by the first roller 51 and the rotary stopper 49 after this facing, the lower catch roller 34 is also attached to the detachable portion 42. It is immovably fixed by this. In this way, the sliding door 11 and the sliding door 12 of the other side connected to the sliding door 11 via the rack pinion mechanism 10 become impossible to move, maintaining the fully closed position (1st lock). .

As shown in FIG. 3, in response to the above upward rotation of the lock lever 32, in the curved hole 47, the second roller 52 of the lock lever 32 is rotated stopper 47a. It moves from the projection 47c to the rotation allowance 47b from above. As a result, the lock plate 33 is allowed to rotate around the shaft center of the planetary gear mechanism 20, so that the rotation of the carrier 22 connected to the lock plate 33 (in other words, the planetary gear 24) is possible. Idle) is also allowed. On the other hand, since the sliding direction cannot move in the closing direction after the sliding door 11 reaches the fully closed position, rotation of the internal gear 23 connected to the sliding door 11 through the rack pinion mechanism 10 is also inhibited. . Therefore, the driving force of the sun gear 21 which continues to rotate is transmitted (distributed) to the carrier 22 this time. As shown in FIG. 4, the lock plate 33 rotates counterclockwise in the figure. The second roller 52 reaches an end portion on the side of the rotation allowable portion 47b of the curved hole 47. In this state, the lower rotation of the lock lever 32 is prevented because the second roller 52 is located in the rotation allowable portion 47b (second lock).

As described above, the locking mechanism 30 is automatically switched to the locked state after the movement of the sliding door 11 · 12 to the fully closed position as shown in Fig. 2 → Fig. 3 → Fig. 4, and the sliding door 11 · 12 is closed. It remains locked. Therefore, only by driving the sun gear 21 of the planetary gear mechanism 20 with a single actuator, a lock in conjunction with the closing of the sliding doors 11 and 12 can be realized to simplify the driving configuration.

In addition, in this locked state of FIG. 4, the 1st lock by restricting rotation of the lock link 31 with the lock lever 32 is performed, and the rocking of the lock lever 32 is rock plate 33 ), A second lock is performed by regulating. That is, since double locking can be performed, even if the electric motor becomes a power failure due to, for example, a power failure or failure of the vehicle, the rotation of the output shaft (the sun gear 21) becomes free. The opening of the sliding door 11 · 12 is very surely prevented by the above double lock. This means that even if the vehicle becomes a power failure or the like, the situation in which the sliding door 11 · 12 suddenly opens due to wind pressure or the like can be prevented.

In addition, the switch from the locked state to the unlocked state and the opening of the sliding doors 11 and 12 only need to drive the sun gear 21 in the opposite direction to the closing time by the electric motor. That is, in FIG. 4 in the locked state, since the sliding door 11 is locked by the lock link 31, the rotation of the internal gear 23 is prevented, while the second roller 52 is allowed to rotate. ), Rotation of the lock plate 33, in other words, rotation of the carrier 22 is permitted. Therefore, when the sun gear 21 is driven opposite to an arrow from the state of FIG. 4, the driving force of the sun gear 21 is all transmitted (distributed) to the carrier 22, and the lock plate 33 is reversed from the arrow. Since the second roller 52 of the lock lever 32 is released from the rotation allowable portion 47b by swinging, the second lock is released, and the lock lever 32 is rotated downward by the action of the elastic pressure spring. do.

When the lock lever 32 rotates downward, the first roller 51 is pulled out of the rotation stopper 49, so that the rotation restriction of the lock link 31 is released. This means that the lock (first lock) of the sliding door 11 is released and the rotation of the internal gear 23 is allowed. On the other hand, since the second roller 52 enters the rotation stopper portion 47a of the curved hole 47 in accordance with the lower rotation of the lock lever 32, the rotation of the lock plate 33 and the carrier 22 is described above. It is prevented by the projection 47c of the curved hole 47. As a result, the driving force of the sun gear 21 in the planetary gear mechanism 20 is transmitted (distributed) to the internal gear 23 side at this time, so that the sliding door 11 · 12 passes through the rack pinion mechanism 10. Driven in the open direction. Then, the catch roller 34 moves to the open side while rotating the lock link 31 to some extent, and finally pulls out of the detachable portion 42 and moves further to the open side.

As described above, the vehicle sliding door lock device of the present embodiment includes a rack 7 · 7 attached to the sliding door 11 · 12 that can be reciprocated, and a pinion 9 engaged with the rack 7 · 7. The rack pinion mechanism 10 which consists of this, the electric motor as an opening / closing drive source of the said sliding door 11 * 12, the planetary gear mechanism 20 into which the driving force of this electric motor is input, and the said sliding door 11 * 12 are closed positions It has a lock mechanism 30 that can be locked at. When the sliding door 11 · 12 is out of the fully closed position, the power of the electric motor is distributed from the internal gear 23 of the planetary gear mechanism 20 to the pinion 9. When the sliding door 11 · 12 is in the fully closed position, the power of the electric motor is locked from the carrier 22 of the planetary gear mechanism 20 to switch the locked state and the unlock state of the lock mechanism 30. It is distributed to the plate 33.

Thereby, the power of an electric motor is distributed through the planetary gear mechanism 20, one side drives the pinion 9 of the rack pinion mechanism 10, and the other side drives the lock plate 33. As shown in FIG. Moreover, since the output of the planetary gear mechanism 20 (specifically, the output of the internal gear 23) is connected to the pinion 9 of the rack pinion mechanism 10, the structure for power distribution is a rack pinion. It is housed in a compact space with the mechanism 10. Therefore, the drive force transmission (distribution) structure from the electric motor can be simplified, and an open / close lock device excellent in space saving can be provided.

Moreover, since the distribution of the driving force from the electric motor is performed using the planetary gear mechanism 20 instead of the shock absorbing spring as in Patent Document 1, the electric motor breaks down in the state where the sliding doors 11 and 12 are locked in the closed position. Even when the driving force is lost by this, no force in the lock release direction is applied to the lock plate 33 or the like, and unintended lock release is prevented. In addition, by making the structure which connected the lock plate 33 and the lever (not shown) installed in the position accessible from inside or outside of a vehicle with connection members, such as a wire (not shown), a human can operate this lever at the time of emergency, The sliding plate 11 · 12 can be opened manually after the lock plate 33 is swung in the direction in which the lock release state is released and the lock is released.

Moreover, in this embodiment, when the said sliding mechanism 11 * 12 is other than the fully closed position (FIG. 2), the said lock mechanism 30 prevents rotation of the said lock plate 33, The said sliding mechanism 11 * When 12) is in the fully closed position (FIG. 3 or 4), it is configured to allow rotation of the lock plate 33.

This ensures that the lock operation is performed after the sliding door 11 · 12 surely reaches the fully closed position. In other words, when the sliding door 11 · 12 is driven in the closing direction, the lock operation is performed at an earlier timing, thereby preventing the locking mechanism 30 from being damaged or being restricted immediately before the sliding door 11 · 12 is fully closed.

Moreover, in this embodiment, the said lock mechanism 30 is equipped with the cam which consists of the curved hole 47, and this cam (curve hole 47) is the protrusion which prevents switching from a locked release state to a locked state. 47c is provided. The second roller 52 serving as the follower of the cam mechanism only shows the projection 47c only when the sliding door 11 driven in the closing direction by the electric motor reaches the close position. As shown in Fig. 2, it is configured to be able to skip over. The rotation of the lock plate 33 is allowed by the riding of the protrusion 47c.

Therefore, the simple structure which can prevent the above-mentioned early lock | lock can be realized.

Moreover, the said lock mechanism 30 engages with the catch roller (member of a sliding side) 34 provided in the sliding door 11 in the vicinity of the fully closed position, and locks to rotate according to the opening-closing movement of the sliding door 11. Link 31 is provided. Moreover, the lock mechanism 32 is provided in the lock mechanism 30, This lock lever 32 is connected to the lock plate 33 via the cam which consists of the curved hole 47. As shown in FIG. Moreover, this lock lever 32 is a position of the horizontal position which regulates rotation of the lock link 31 in the position when the said sliding door 11 * 12 is in the fully closed position (position of FIG. 4; corresponded to a lock position). And the position (position of FIG. 2) which is inclined and deviated from the position of this horizontal attitude | position. The lock plate 33 realizes the lock state by fixing the lock lever 32 at the position of the horizontal attitude (position in FIG. 4), and releases the lock at the position of the horizontal attitude. The lock release state is realized. As shown in FIG. 2, the lock lever 32 (the roller inserting portion 43 is the first by the rotation of the lock link 31 based on the movement of the sliding door 11 in the closing direction). It is comprised so that the said 2nd roller 52 can ride over the protrusion 47c in the said bending hole 47 by pushing up the roller 51).

This locks the sliding door 11 · 12 (first lock) by locking the rotation of the lock link 31 with the lock lever 32, and fixes the lock lever 32 with the lock plate 33. An automatic double lock structure is implemented (second lock). Therefore, even if the electric motor loses the driving force due to a failure or the like while the sliding door 11 · 12 is locked in the fully closed position, the unlocking of the sliding door 11 · 12 against the intention is very surely prevented.

Moreover, the latch lock of the prior art is caught by the hole formed in the rack of the rack pinion mechanism. Therefore, since the hole is necessarily larger than the lock pin, a gap is created in the state where the lock pin is inserted in the hole, and the sliding door is loosened due to wind pressure, etc., which not only makes the passenger uncomfortable, but also affects the life of the lock device. There was a problem that there was. On the other hand, in the lock system of the present invention, there is no gap in the locked state, so this problem does not occur.

The rotation of the lock plate 33 is performed because the skipping of the protrusion 47c of the second roller 52 (in other words, the rotation of the lock plate 33 is allowed) is performed by the rotation of the lock link 31. It is ensured to be performed in the vicinity of the fully closed position of the sliding door 11. In other words, the lock operation at too early timing is more surely prevented.

As mentioned above, although preferred embodiment of this invention was described, said embodiment can be changed as follows, for example.

(1) In the above embodiment, the sun gear 21 is connected to the output shaft of the electric motor, the internal gear 23 is connected to the pinion 9, and the carrier 22 is connected to the lock plate 33. Various modifications are possible, for example, by connecting the sun gear 21 to the pinion 9 and the internal gear 23 to the electric motor, without being limited thereto.

(2) Although the cam between the lock plate 33 and the lock lever 32 was comprised using the bending hole 47 and the 2nd roller 52 in the said embodiment, it is not limited to this, Various well-known structures Can be adopted. For example, the lock mechanism which consists of a link and a pin can be employ | adopted. Moreover, it is not limited to setting it as the lock mechanism which implements double lock like the said embodiment.

(3) In the said embodiment, although it was set as the sliding door 11 * 12 of both opening types, even in the case of one opening type, the structure of this invention is applicable.

SUMMARY OF THE INVENTION The present invention provides a simple and compact configuration for a lockable opening and closing device for opening and closing a sliding door with a single actuator, and preventing the locking from being performed before the sliding door driven in the closing direction reaches the fully closed position. At the same time, there is an effect of providing a configuration capable of preventing inadvertent lock release even if the actuator loses driving force in the closed lock state.

Claims (4)

A rack pinion mechanism comprising a rack attached to a reciprocating sliding door and a pinion engaged with the rack; An actuator as an opening and closing drive source of the sliding door, A planetary gear mechanism into which the driving force of the actuator is input; A lock mechanism capable of locking the sliding door in a fully closed position; When the sliding door is outside the fully closed position, the power of the actuator is distributed to the pinion via the planetary gear mechanism, And when the sliding door is in the fully closed position, power of the actuator is distributed to the switching lever for switching the lock state and the lock release state of the lock mechanism through the planetary gear mechanism. The method according to claim 1, And the lock mechanism is configured to prevent movement of the switching lever when the sliding door is outside the fully closed position, and to allow movement of the switching lever when the sliding door is in the fully closed position. The method according to claim 2, The lock mechanism is provided with a cam, and the cam is provided with a projection for preventing a switch from the locked release state to the locked state. This projection is capable of riding only when the sliding door driven by the actuator in the closing direction in the lock release state reaches or is in the fully closed position, and the movement of the switching lever is allowed by the riding. Locking switchgear characterized in that. The method according to claim 3, The lock mechanism, A rotating member which is engaged with the sliding member in the vicinity of the fully closed position and rotates in accordance with the opening and closing movement of the sliding member; It is connected through the said cam lever and the said cam, and has the lock position which regulates the rotation of the said rotation member in the position when the sliding door is in the fully closed position, and the movable member which is movable between the position which deviated from this lock position. and, The switching lever is configured to realize the lock state by fixing the moving member in the lock position, and to realize the lock release state by releasing the fixing in the lock position of the moving member, The projection of the cam is configured to be able to ride over by the rotation of the pivot member based on the movement in the closing direction of the sliding door.

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