JPH0222196B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an automatic opening/closing device for the door of a cableway carrier.

[Prior Art] In a cableway, for example, an automatic circulation cableway, when the carrier arrives at one end terminal from the cableway line, it leaves the cable and moves while being pushed at a slow speed along the rail inside the terminal. The doors will be opened and passengers will be treated as passengers getting off the train. Furthermore, the carrier changes direction along the U-shaped rail in the terminal and is sent to the departure side, where it is handled as passengers while being pushed at a slow speed, and then the door is closed and it departs into the cableway. ing. Since the operation interval of the carriers on the automatic circulation cableway is usually short, about 10 seconds or less, the transportation of the carriers within the terminal needs to be carried out smoothly, and for this reason, these operations do not depend on human hands. It is required that this be done automatically. In particular, with regard to doors, in addition to ensuring that the doors open and close automatically as described above, the door should be opened or closed reliably, especially when closed, and that passengers cannot open the closed door from inside. Reliable locking and durability against frequent opening and closing are required.

[Problem to be solved by the invention] Several such devices have been proposed in the past,
However, the devices used in the past have not been fully satisfactory due to the following points.

In other words, carriers for automatic circulation cableways are usually designed to have a lightweight structure, and this is done so that the load borne by the cables that support the carriers does not increase, and as a result, the entire cableway equipment is designed to be large-sized. This is due to the need for an economical design to prevent damage, but since such lightweight carriers are used, the carriers tend to swing (particularly roll) due to strong winds.

Needless to say, rocking of the carrier during operation not only causes discomfort and anxiety for passengers, but also causes stress on the cables supporting the cableway in the cableway track if the amplitude of the rocking exceeds the limit. There is a risk that the carrier may approach or collide with the rope equipment or support poles, and for safety reasons,
To avoid this, operation must be stopped or suspended. In the mountainous and snowy areas where the cableway will be constructed, there are many days when strong winds occur, and frequent suspension or suspension of operation causes inconvenience to passengers, and
The economic loss is also large.

For these reasons, it is necessary to eliminate as much as possible the causes that cause or encourage the rocking of the carrier, but the position and structure of the door opening/closing device installed on the carrier may also cause the rocking of the carrier. or have a significant involvement in the cause that promotes it.

In other words, the conventionally used door opening/closing devices for carriers have complex shapes and are relatively heavy devices that are exposed to the outside on the roof of the carrier (for example, No. 53-53252 ``Automatic door opening/closing device for passenger cars on automatic circulation cableway''), installing a device with such a position and shape requires firstly raising the center of gravity of the carrier, and secondly, increasing the center of gravity of the carrier. This has two disadvantages: increasing the aerodynamic drag coefficient of the vehicle.

First, the first point will be explained.

Figure 1 shows a case where the carrier is deflected (rolling in this case) due to crosswinds.

The carrier 101 can be regarded as a pendulum suspended from a cable 103 by a suspension machine 102. Here, O: fulcrum (rope 103) G: position of the center of gravity of the carrier l: length W: weight of the carrier R: restoring force due to the attitude of the carrier M: restoring moment due to the attitude of the carrier α: deflection angle of the carrier Then, the restoring moment M of the carrier's posture when deflection occurs can be found as M=W・lsinα, and increasing W or l increases the restoring moment M, making the carrier stable against deflection. It is clear that However, since it is difficult to increase the weight W of the carrier as mentioned above, the center of gravity position G is lowered as much as possible, and
It is desirable to increase the dimensions. For this reason, it is not preferable to provide the door opening/closing device near the roof or ceiling of the carrier because it raises the position of the center of gravity G.

Next, the second point will be explained.

Conventional door opening/closing devices have complex-shaped devices that are exposed on the roof of the carrier, but this causes disturbances in the streamlines of the air that hits the carrier, resulting in an increase in the so-called aerodynamic drag coefficient. increases, creating disadvantageous conditions for the deflection of the carrier due to wind.

The conventional device has these two drawbacks and is not satisfactory.

This invention was made with the aim of eliminating these drawbacks, and the door opening/closing device is arranged under the floor of the carrier instead of on the roof, so that the weight of the device contributes to lowering the center of gravity of the carrier. In addition, the device was designed to be stored under the floor so that it does not protrude outside, and to prevent the flow of air around the carrier from being disturbed in the event of strong winds, and to avoid increasing or encouraging the rocking of the carrier. In addition to enjoying these advantages, it also ensures reliable opening and closing, which is the original function of the door opening/closing device, and in particular, ensures reliable locking when closing the door.
The purpose is to provide a device that ensures safety by preventing people from opening the door from inside when the door is closed, and that is stable and durable even with frequent opening and closing operations. That is.

[Means for Solving the Problem] Corresponding to this object, the cableway carrier door opening/closing device of the present invention has a first fixed position and a second fixed position located at different positions along the travel path of the passenger car. Among them, a first guide member 1 that guides the follower to the first fixed position.
4, a second guide member 15 for guiding the follower in a direction different from that of the first guide member is provided at a second fixed position, and a floor plate 9 and a bottom plate 10 are provided at the bottom of the passenger car 1. A gap A is provided, and at least a part of a door opening/closing mechanism 17 that is connected to the double doors 7a and 7b of the passenger car 1 to open and close the doors 7a and 7b is disposed within the gap A. The door opening/closing mechanism 17 includes the follower 11 that can be displaced while being guided by the guide members 14 and 15, and a sliding mechanism that is located within the gap A and is slidably displaced by the displacement of the follower 11. A plate 30, a connecting member 13 connecting the follower 11 and the sliding plate 30, and a door opening/closing link mechanism having at least a portion located within the gap A, the door opening/closing link mechanism having one end. a lever 28 pivoted at a fixed position on the passenger car 1; and a lever 28 pivoted at a fixed position on the passenger car 1;
Spring 5 stretched between the fixed position above
3, a link mechanism 28, 23, 24 consisting of links 23, 24 whose one end is pivotally connected to the doors 7a, 7b and the other end is pivotally connected to the lever 28, the sliding plate 30 and the link mechanism 28, 23, 24, and located within the gap A, the link mechanism 28, 2
3, 24 and the link mechanisms 28, 23,
24 and the link mechanism 28, 2
The link mechanism 28, 2 is spaced apart from the link mechanism 3, 24.
3 and 24, and a claw 44 that can be displaced to a position where it releases
a, 44b, and a driving link 34.
and a driven joint 38, the driving joint 34 is fixed to the sliding plate 30, and the driven joint 38 is fixed to the sliding plate 30.
8 is connected to the claws 44a, 44b via a connecting member 37.

[Function] In the door opening/closing device for a cable carrier according to the present invention, when the cable carrier departs from or arrives at a stop, the follower 11 comes into contact with the guide members 14 and 15 provided at the stop, which is a fixed position, and guides the vehicle. be displaced. This displacement of the follower 11 is caused by the connecting member 13 to move the sliding plate 30
is transmitted to cause the sliding plate 30 to slide.

This displacement of the sliding plate 30 is transmitted to the doors 7a, 7b by the door opening/closing link mechanism, thereby opening and closing the doors 7a, 7b. On the other hand, the locking member 41 comes into contact with the door opening/closing link mechanism and restrains the door opening/closing link mechanism. The displacement of is the driving node 3
The signal is transmitted to the locking member 41 through the cam device and the connecting member 47, which is composed of the cam device 4 and the driven joint 38, and the locking member 41 moves backward, releasing the door opening/closing link mechanism and opening the door 7a, 7b can be opened and closed.

[Example] Hereinafter, details of the present invention will be explained with reference to drawings showing an example.

In addition, in the embodiment described below, guide rails 14 and 1 are used as an example of guide members 14 and 15.
5 is used, the opening/closing lever 11 is used as an example of the follower 11, the lever 28, links 23, 24, and lever 35 are used as an example of the door opening/closing link mechanism, and the locking member 41 is used as an example of the locking member 41. Since the ratchet device 41 is used, the protrusion 34 is used as an example of the driving joint 34, the lever 38 is used as an example of the driven joint 38, and the rod 47 is used as an example of the connecting member 47, it is easy to understand the present invention. In the following explanation, the above guide member 1
4 and 15 are expressed as guide rails 14 and 15, and the above-mentioned follower 11 is expressed as the opening/closing lever 11.
3, 24, a lever 35, the locking member 41 as a ratchet device 41, the driving joint 34 as a protrusion 34, the driven joint 38 as a lever 38, The connecting member 47 is expressed as a rod 47.

Figure 2 shows the overall arrangement, with the carrier on the rail inside the terminal and the door open.

The passenger car 1 is suspended from the rope gripping machine 3 by the suspension machine 2,
In the terminal, the rope gripping machine 3 is equipped with rollers 4
a, 4b along the rail 5 in the direction of the arrow 6.

The passenger car 1 has doors 7a, 7b, the door 7a is pivotally supported to the passenger car 1 by hinges 8a, 8c, the door 7b is pivotally supported to the passenger car 1 by hinges 8b, 8d, and the door 7a is pivotally supported to the passenger car 1 by hinges 8b, 8d.
c and hinges 8b and 8d to open and close the hinges. The passenger car 1 has a floor plate 9 that serves as a stepping surface for passengers and a bottom plate 10 that serves as a bottom surface of a carrier, and a gap A is formed between the floor plate 9 and the bottom plate 10 in which a door opening/closing mechanism 17 is disposed.

A follower, for example, an opening/closing lever 11 is installed near the middle of the suspension machine 2 in the length direction, and the opening/closing lever 1
A connecting member 13 connected to the suspension machine 2 is installed inside the passenger car 1 along with the suspension machine 2, and is connected to the floor plate 9 and the bottom plate 1.
It is connected to the door opening/closing mechanism 17 within the gap A between the door opening and closing mechanism 17.

Next, the structure of the door opening/closing mechanism 17 shown in the above-mentioned overall arrangement will be explained in detail. The door opening/closing mechanism 17 is assembled on the bottom plate 10 within a gap A between the floor plate 9 and the bottom plate 10.

In FIG. 5a, the bottom plate 10 and the structures 21a, 2
1b are in a fixed relationship with each other and are in a fixed position.
Doors 7a and 7b have hinges 8a and 8b in fixed positions.
The hinges are pivoted to open and close by pivoting around hinges 8a and 8b, respectively. One end of a link 23 is pivotally attached to the door 7a via a pin 22a, and one end of a link 24 is pivotally attached to the door 7b via a pin 22b. On the other hand, the bracket 2 fixed to the bottom plate 10
One end of a lever 28 is pivotally attached to the lever 6 via a pin 27, and the other end is a free end and is swingable. In addition, a pin 25 protruding upward is fixed near the midpoint in the length direction of the lever 28, and the pin 25
5 includes the other end of the link 23 and the link 2
The other end of 4 is pivotally connected.

On the other hand, guide rails 29a and 29b are fixedly fixed to the bottom plate 10, which is a fixed position, in parallel and facing each other, and the sliding plate 30 is narrowed and guided inside the guide rails 29a and 29b, so that it can freely slide. . That is, the connecting member 13 fixed to the sliding plate 30 performs a sliding movement by pushing and pulling in the direction of the arrow 32a or 32b. A pin 33 is fixed to the upper surface of the sliding plate 30 in a cantilevered manner facing upward, and a pin-shaped projection 34 is fixed to the lower surface of the sliding plate 30 in a cantilevered manner facing downward. .

Next, the lever 35 has one end pivotally connected to the link 23 by a pin 36, and an oblong hole 37 formed at the other end, into which the pin 33 is loosely inserted. It can be slid in the longitudinal direction of the oval hole 37.

Next, the lever 38 has one end pivotally connected to a pin 39 fixed to the bottom plate 10, and the other end is a free end, and the lever 38 has a smooth outer edge near the free end. A guide surface 40 having an arcuate convex surface is formed, and the guide surface 40 is configured to abut and slide against the protrusion 34 of the sliding plate 30.

On the other hand, a ratchet device 41 is fixed to the bottom plate 10, which is a fixed position. The ratchet device 41 has two ratchets 42a and 42b that slide inside a housing 43 so that claws 44a and 44b at the tips protrude or retract.
The claws 44a, 44b are assembled so that a resilient force is exerted by the claws 5a, 45b to maintain the protruding state at all times. the two ratchets 42a,
42b is in a fixed relationship via a connecting pin 46. A rod 47 connects the connecting pin 46 and the lever 38 near the midpoint thereof. That is, one end of the rod 47 is pivotally connected to the lever 38 via a pin 48, and the other end of the rod 47 is pivotally connected to the connecting pin 46. A ratchet holder 50 having a plurality of serrated teeth is fixed to the lower surface of the lever 28 in the vicinity of the fixed position of the pin 25. The ratchet receiver 50 and the claws 44a, 44b of the ratchets 42a, 42b are connected to the door 7.
The shapes and relative positions of a and 7b are such that they can engage with each other when the doors are closed. Further, a spring holder 51 is fixed near the free end of the lever 28, and a spring holder 52 is also fixed to the bottom 10, and a coil spring 53 is installed between the spring holder 51 and the spring holder 52. It is strung up. Further, a stopper 54 is fixed to the bottom plate 10, and as described later, this is for determining the limit of opening of the door when the door is in the open state.

The opening/closing operation of the door opening/closing device having such a structure will be explained with reference to the drawings.

FIG. 5a shows the door closed state.

The doors 7a and 7b are closed, and the links 23, 24, and lever 28 are in the closed door position.
In this state, the ratchet receiver 50 is engaged with the pawl 44a of the ratchet device 41.

The sliding plate 30 is guided by the guide rails 29a, 29b and moved in the direction of the arrow 32b, and the protrusion 34 does not come into contact with the guide surface 40 of the lever 38 but is separated from the guide surface 40 of the lever 38. The elastic means 45a, 45b of the device 41 cause the pin 4 to
6. Since it is towed via the rod 47 and the pin 48, it is in the position of being rotated about the pin 39 in the direction of the arrow 57a.

Further, the pin 33 of the sliding plate 30 is loosely inserted into and engaged with the oblong hole 37 of the lever 35.

A coil spring 53 stretched between the spring holder 51 and the spring holder 52 acts to maintain the door in the closed position due to its relative position with the pin 27 of the lever 28.

Since the ratchet receiver 50 on the lower surface of the lever 28 is engaged with the pawl 44a of the ratchet device, the door 7
a, 7b are pins 22a, 22b, links 23, 2
4 and pin 25 to lock the door in the closed state,
I can't open it.

Next, the state during the opening of the door will be explained.

As shown in FIG. 3b, when the passenger car 1 moves in the direction of the arrow 6 and passes near the door opening guide rail 14, the roller 12 is guided by the door opening guide rail 14 and rolls, and the opening/closing lever 11 is moved in the direction of the arrow 6. It is turned in the direction of 16a and assumes an upward position. As a result, the connecting member 13 is pulled upward, and the sliding plate 30 (FIG. 5b) of the door opening/closing mechanism 17 connected to the connecting member 13 is moved in the direction of the arrow 32a.

The operation of the door opening/closing mechanism 17 at this time will be explained with reference to FIGS. 4a and 4b.

When the sliding plate 30 moves in the direction of the arrow 32a, the protrusion 34 comes into contact with the vicinity of the tip of the guide surface 40 of the lever 38, and when the sliding plate 30 moves further in the direction of the arrow 32a, the protrusion 34 moves in the direction of the arrow 32a, that is, the guide rail. Since it goes straight parallel to 29a and 29b,
The projection 34 slides along the guide surface 40, and as a result, the lever 38 is rotated about the pin 39 in the direction of the arrow 57b. As the lever 38 is rotated, the position of the pin 48 is also rotated in the direction of the arrow 57b, so that the claws 44a and 44b can be retracted through the rod 47 and the connecting pin 46 via the pin 48, and the claws 44a and 44b can be retracted via the pin 48. and the ratchet receiver 50 are disengaged from each other. This releases the lock and makes the door ready to open.

On the other hand, as the sliding plate 30 moves in the direction of the arrow 32a, the pin 33 also slides along the oblong hole 37 of the lever 35, and finally the pin 33
3 and one end of the oval hole 37 come into contact. This situation is shown in Figure 3b.

Next, the state in which the door opens further from the state shown in FIG. 5b and until the door opening is completed will be explained with reference to FIG. 5c.

As described above, when the connecting member 13 is further pulled upward by turning the opening/closing lever 11 to the upward position (FIG. 3b), the sliding plate 30 further slides in the direction of the arrow 32a. The pin 33 fixed to the sliding plate 30 is loosely inserted into the oval hole 37 of the lever 35, so as the sliding plate 30 moves, the pin 33 moves into the oval hole 37 as described above. slide along the
When the length of the oval hole 37 is reached, the lever 3
5 in the direction of arrow 32a.

Since the lock has already been released in the state shown in FIG. The door will be opened.

This relationship will be explained in more detail as shown in FIGS. 6a and 6b.

Figure 6 a corresponds to the case of Figure 5 a or b,
FIG. 6b is an explanatory diagram corresponding to the case of FIG. 5c.

In FIG. 6a, both ends of the link 23 are connected to pins 2
2a connects the door 7a and the pin 25 connects the lever 2.
8, and the door 7a is pivotally connected to a hinge 8a in a fixed position. Further, since the lever 28 is pivotally connected to the pin 27 in a fixed position, when the pressing force P derived from the movement of the sliding plate 30 is applied to the pin 36, the door 7a is moved in the direction of the arrow 58a around the hinge 8a. The door swings open.
At the same time, the link 28 swings in the direction of the arrow 59a via the pin 25, centering on the pin 27 in the fixed position.
5. Since the pin 22b of the door 7b is pressed and moved through the link 24, the door 7b swings about the hinge 8b in the direction of the arrow 60a and is opened, resulting in the state shown in FIG. 6b. In this way, Figures 5c and 6
As shown in FIG. b, the doors 7a and 7b are opened by pivoting.

Further, the stopper 54 is used to determine the limit position for opening the door when the links 23 and 24 come into contact with each other when the door is in the open state. Note that during the course of this operation, the tension center line of the coil spring 53 exceeds the position of the pin 27, that is, the dead center, so that the lever 28 is then rotated in the direction of the arrow 59b by the restoring force of the coil spring 53. By moving the door, force is applied in the direction that opens the door, allowing the door to open smoothly.

Next, the operation when closing the door will be explained.

In the case of closing the door, the operation follows almost the reverse order of the above-mentioned case of opening the door. In the open state of Figure 3b,
Although the opening/closing lever 11 is in the upward position, when closing the door, when the carrier passes the closing door guide rail 15 position while moving in the direction of the arrow 6 as shown in FIG. 3c, the roller 12 moves along the closing door guide rail 15. The opening/closing lever 11 is turned in the direction of the arrow 16b and placed in the downward position. As a result, the connecting member 13
is pressed downward, and as shown in FIG. 5c, the sliding plate 30 fixed to the connecting member 13 starts moving in the direction of the arrow 32b.

Due to the movement of the sliding plate 30, the pin 33 is moved to the lever 3.
It continues sliding along the inside of the hole 37 having an oval shape until it comes into contact with the other end of the hole 37. Moreover, during this elapsed period, the doors 7a and 7b are still in the open state.

When the sliding plate 30 further moves in the direction 32b, the pin 33 comes into contact with the other end of the oblong hole 37 and pulls the link 35 in the direction of the arrow 32b. That is, in FIG. 6b, when the traction force Q derived from the movement of the sliding plate 30 acts on the pin 36, the link 23
The door 7a is opened via the arrow 58b around the hinge 8a.
The door swings in the direction of . The traction force Q causes the lever 28 to swing around the pin 27 in the direction of the arrow 59b through the link 23 and the pin 25, and the door 7b is moved around the hinge 8b through the link 24 and the pin 22b in the direction of the arrow 60b. Close the door by sliding it in the direction of .

Note that the coil spring 5 connecting the spring receiver 51 and the spring receiver 52 during the swinging operation of the lever 28
3 exceeds the position of the pin 27 of the lever 28, the coil spring 53 acts to assist in closing the door. Moreover, during such a door closing operation, the protrusion 34 slides while contacting the guide surface 40 of the lever 38 as the sliding plate 30 moves in the direction of the arrow 32b, so that the lever 38 is moved against the pin 3.
The pin 48, the rod 47, and the connecting pin 46 are rotated by sliding in the direction of the arrow 57b centering on the pin 9.
When the claws 44a and 44b are retracted through the lever 28 and the lever 28 is ready to engage with the ratchet holder 50, and when the sliding plate 30 reaches the end of its movement in the direction of the arrow 32b, the protrusion 34 is moved from the guide. Since it comes off the surface 40 and becomes the state shown in FIG. 5a, the elastic means 45
The lever 38 is moved to the pin 39 by the elastic force of a and 45b.
The nail 4 pivots in the direction of the arrow 57a with the pin 48, the rod 47, and the connecting pin
4a and 44b protrude from the housing 43, and the claw 44a and the ratchet receiver 50 are engaged to lock the door. In this way, the closing of the door is completed.

Note that the ratchet device 41 has claws 44a, 44.
b, and the ratchet holder 50 has two teeth.
The reason for having two plates is so that even if the claw 44a and the ratchet holder 50 become disengaged, the claw 44b will instead engage with the ratchet holder 50 to prevent the door from opening. This is a double safety device.

Furthermore, for the connecting member 13 that connects the opening/closing lever 11 and the door opening/closing mechanism 17 in FIG. It is also possible to use a so-called flexible cable, in which a wire rope is inserted into a flexible hollow tube so that it can slide freely and transmit the motion.

As shown by dotted lines in FIGS. 4a, b and 5a, b, c, a rod 61 is attached to the lever 38 via a pin 60, and the rod 61 is inserted from an appropriate location outside the passenger car in the direction of the arrow 62. If it is possible to tow the passenger car, the lever 38 can be rotated in the direction of the arrow 57b around the pin 39 to release the lock of the ratchet device, and in case of emergency, the doors 7a and 7b can be manually opened from outside the passenger car. It may also be possible to open it.

[Effects of the Invention] As detailed above, since the door opening/closing device for the carrier of the circulating cableway of the present invention can be installed in the gap between the floor plate and the bottom plate of the passenger car, it has the following significant effects. has. In other words, providing a door opening/closing mechanism on the roof of a conventional passenger car had the disadvantage of raising the center of gravity of the carrier and causing deflection of the carrier due to wind pressure loads, but the present invention lowers the center of gravity of the carrier. This is extremely advantageous against deflection due to wind pressure loads. In addition, installing a door opening/closing mechanism on the roof increases the aerodynamic drag coefficient due to the complicated shape of the device protruding outside, increasing wind pressure resistance, which also increases the deflection of the carrier. However, since the door opening/closing device of the present invention is housed between the passenger car floor plate and the bottom plate, this damage is eliminated. Additionally, the design of the passenger car becomes simpler and aesthetically pleasing. Furthermore, in addition to having the above-mentioned characteristics, it also enjoys the reliability of opening and closing the door that is inherent to the door opening/closing device, the reliability of the lock that prevents the closed door from being opened from the inside, and the safety and durability of operation against frequent opening and closing. It is something. The above points have a significant effect on the safety of cableway carriers, especially carriers for transporting people.

[Brief explanation of drawings]

Figure 1 is a vector diagram showing the forces acting on the carrier.
Fig. 2 is a perspective explanatory view of the carrier, Fig. 3 is an explanatory view showing the position of the opening/closing lever when opening and closing the door, where a is the state when traveling, b is the state when the door is open, c is the state when the door is closed, Fig. 4 is a perspective explanatory view showing the door opening/closing mechanism, where a is the door opening/closing driving member, b is the door locking member, c is the ratchet, d is the ratchet receiver, and Fig. 5 is a plane showing the door opening/closing mechanism. In the figure, a is the state when the door is closed, b is the state when the door is unlocked, c is the state when the door is open, and FIG. 6 is a plan view showing the door opening/closing mechanism as a skeleton. is the state when the door is opened. 1...passenger car, 2...suspension machine, 3...rope grip machine, 7
a, 7b...door, 9...floorboard, 10...bottom plate, 1
7...Door opening/closing mechanism.

Claims (1)

[Claims] 1. Providing a first guide member 14 that guides the follower to the first fixed position of the first fixed position and the second fixed position located at different positions along the travel route of the passenger car,
A second guide member 15 for guiding the follower in a direction different from that of the first guide member is provided at a second fixed position, and a floor plate 9 and a bottom plate 10 are arranged at the bottom of the passenger car 1 to partition the passenger car 1. A gap A is provided, and the door 7 is connected to the double doors 7a and 7b of the passenger car 1.
At least a part of a door opening/closing mechanism 17 for opening/closing a, 7b is disposed within the gap A, and the door opening/closing mechanism 17 includes the follower 11 which can be displaced by being guided by the guide members 14, 15. , a sliding plate 30 located within the gap A and slidingly displaced by displacement of the follower 11; a connecting member 13 connecting the follower 11 and the sliding plate 30; A door opening/closing link mechanism is provided within the gap A, and the door opening/closing link mechanism includes a lever 28 whose one end is pivoted at a fixed position on the passenger car 1.
and a spring 53 stretched between a fixed position on the passenger car 1 and a fixed position on the lever 28.
and links 23 and 24, one end of which is pivotally connected to the doors 7a and 7b and the other end of which is pivotally connected to the lever 28, and the sliding plate 3.
0 and a link 35 that connects the link mechanisms 28, 23, 24, and is located within the gap A and connects the link mechanisms 28, 23, 24.
24 and the link mechanisms 28, 23, 24
and the link mechanism 28, 23, 2
4, the link mechanisms 28, 23, 24
The claws 44a, 44b are movable to a position where the
a locking member 41 having a driving joint 34 and a driven joint 3;
8, the driving joint 34 is fixed to the sliding plate 30, and the driven joint 38 is connected to the pawls 44a, 44b via a connecting member 37. door opening/closing device.