JP2002322848A - Lock device for rolling stock door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock device for rolling stock door capable of precisely and firmly locking a door in a closing position by the interlocking effect of a mechanical lock mechanism in the closing drive of the door, and precisely and quickly releasing the lock of the door by the mechanical lock device by electric input in the opening drive of the door. SOLUTION: The door 1 is locked in the terminal end of the door closing operation by the engagement of a socket pin 5 and hook lever 3 constituting the mechanical lock mechanism, and the rotation of the hook lever 3 is regulated by a constraining lever 12 connected to the plunger 14 of a solenoid 13 and a linkage lever 10 and blocking lever 8 successively engaged with the constraining lever 12. In the opening drive of the door, current is carried to the solenoid 13 to nullify the regulating lever mechanism.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device used to stop and hold a sliding door of a railway vehicle in a closed position.

[0002]

2. Description of the Related Art In a railway vehicle, one or two passenger entry / exit openings formed on the side of the vehicle body correspond to the opening width.
It is opened and closed by a pair of sliding doors, and a door opening and closing mechanism using high-pressure air has been conventionally used as an opening and closing drive system. As a driving source, an air compressor is mounted on the floor bottom side of each vehicle, and required air piping and control devices are provided between the air cylinder for operating the door and the air compressor. In the air-driven door opening and closing mechanism, when the door is in the closed position, the air pipe is filled with air, and the air cylinder of the door opening and closing mechanism is fixed and held in the operating position. Since the side end surfaces of the door are pressed against the opening frame, and in the case of two doors, the side end surfaces of the doors are pressed against each other, an air-driven door opening / closing mechanism is provided. In addition, there was no need for a lock means for stopping and holding the door at the closed position.

However, the air-driven door opening / closing mechanism not only requires considerable labor and cost for maintenance including the air piping, but also requires the air compressor and the air piping, which increase the weight of the vehicle body, to increase the acceleration performance when the vehicle starts. And the braking performance when the vehicle is stopped. For this reason, a vehicle manufacturer has proposed to a railway company to employ a motor-driven door opening / closing mechanism instead of an air-driven door opening / closing mechanism with the aim of simplifying maintenance and reducing vehicle body weight.

In a motor driven door opening / closing mechanism, energization of the motor is continued even after the motor is driven to the closed position, and maintaining the closed state depending on the motor output is to prevent seizure of the motor winding and reduce power consumption. This is not desirable in terms of savings. However, when the power supply to the motor is turned off, the force for keeping the door in the closed position disappears, so that the door can be easily opened by vibration impact or swing of the vehicle or manual operation by passengers, In order to ensure passenger safety, it is necessary to provide some kind of locking means.

[0005]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a door that is closed and driven, the door is accurately and firmly locked at a closed position by the interlocking action of a mechanical lock mechanism, and the door is opened and driven. It is therefore an object of the present invention to provide a railway vehicle door lock device in which the door lock by the mechanical lock mechanism is accurately and immediately released by an electric input. Another object of the present invention is to provide a lock device for a railway vehicle door, which can unlock the door accurately by remote manual operation even if some trouble occurs in a system related to electrical input at the time of unlocking. It is to provide. Another object of the present invention is to provide a railway vehicle door lock device that can start and start with sufficient security by properly checking the locked and closed state of the door.
Still another object of the present invention is to provide a railway vehicle door lock device that can securely start a motor-driven door opening / closing mechanism by accurately confirming that a lock release standby state has been entered. That is.

[0006]

According to the first aspect of the present invention,
The main components of the mechanical locking mechanism are the catch 2 and the latch lever 3. Receiving money 2 is attached to either one of the opening frame or the door in the opening with one door, and to one of the doors in the opening with two doors. Is done. The latch lever 3 is attached to the other side of the opening frame and the door in the opening with one door, and to the other door in the opening with two doors. . The latch lever 3 is pushed by the receiving pin 5 at the end of the closing operation by the door opening / closing mechanism, and the locking groove 4 is engaged with the receiving pin 5, so that the door is fixed to the opening or another door. Is to be locked. At the start end of the door opening operation by the door opening / closing mechanism, the catch lever 5 pushes the inner surface of the locking groove 4, whereby the latch lever 3 is rotated in the unlocking direction in which the receiving pin 5 escapes from the locking groove 4. When the latch lever 3
Is urged by a spring 6 to rotate in the unlocking direction.

Other mechanical components related to the control of the movement of the latch lever 3 include a stop lever 8, a link lever 10, and a restraint lever 12. The stop lever 8 is a latch lever 3
The stop lever 8 advances toward the latch lever 3 at the end of the door closing operation by the bias of the spring 7 and engages with a part of the latch lever 3. It stops rotation in the unlocking direction. The link lever 10 is disposed on the opposite side of the latch lever 3 with respect to the stop lever 8, and is pressed against the stop lever 8 by the rotation of the spring 9, and the stop lever 8 is moved to the stop lever 3.
Is held at the stop position engaged with. The restraining lever 12 is arranged on the opposite side of the restraining lever 8 with respect to the linking lever 10, is pressed against the linking lever 10 by the rotational bias of the spring 11, and is opened via the receiving pin 5 at the door closing position. When a directional force is applied, the latch lever 3 is prevented from rotating in the unlocking direction via the link lever 10 and the stop lever 8.

A solenoid 13 is provided as an electric operating means for releasing the mechanical lock mechanism. The solenoid 13 connects the restraining lever 12 to the plunger 14, and when the power is applied to open the door opening / closing mechanism, the plunger 14 is suctioned to release the restraining lever 12 from the linkage lever 10. It is.

According to a second aspect of the present invention, in addition to the configuration of the first aspect, one end of a remote control wire 15 is connected to the restraining lever 12. According to a third aspect of the present invention, in addition to the configuration of the first or second aspect of the present invention, in addition to the configuration of the first or second aspect of the present invention, a second operation for detecting the operating position of the latch lever 3 and obtaining a lock state confirmation signal is provided. One switch 36 is provided near the latch lever 3. According to a fourth aspect of the present invention, in addition to the configuration of any one of the first to third aspects of the invention, in addition to the configuration of the first aspect of the present invention, the operating position of the restraint lever 12 is detected to output an unlocked state confirmation signal. A second switch 37 is provided in the vicinity of the restraining lever 12 to obtain the same.

[0010]

The operation will be described based on the fact that the opening / closing opening 40 of the railway vehicle is opened and closed by two sliding door-type doors 1, 1 as shown in FIG. When the door 1 is unlocked and opened, the receiving pin 5 is outside the locking groove 4 as shown in FIG. The latch lever 3 is rotationally urged by a spring 6 in the unlocking direction, that is, clockwise, and is held in a state where the entrance of the locking groove 4 is opened obliquely downward. The power supply to the solenoid 13 is turned off to prevent seizure of the solenoid 13. Latch lever 3
The stop lever 8 in contact with the peripheral surface of the lock lever 8 is held at the horizontal position moved to the left, and the link lever 10 engaging with the stop lever 8 and the restraining lever 12 engaging with the link lever 10 are also held at the horizontal position. ing.

When the door 1 is driven in the closing direction by the motor driven door opening / closing mechanism 50 after the passenger gets on and off, the receiving pin 5 is moved to the side of the latch lever 3 near the end of the closing operation as shown in FIG. , The latch lever 3 is rotated in the counterclockwise direction, that is, in the locking direction against the bias of the spring 6. In the course of this rotation, the peripheral surface of the latch lever 3 pushes the stop lever 8, so that the stop lever 8 retreats to the right side against the bias of the spring 7, and engages deeply with the lower surface of the distal end portion of the link lever 10. .

When the doors 1, 1 are fully closed, the receiving pin 5 engages with the locking groove 4 of the latch lever 3, as shown in FIG. They are locked to each other with their end faces facing each other. At this stage, the latch lever 3 has stopped rotating, and the urging of the spring 7 causes the stop lever 8 to move forward to the left and engage with the latch lever 3. In such an arrangement state, a force in the door opening direction acts on the door 1 due to vibration impact or manual operation, and the rotational moment in the unlocking direction, that is, the clockwise direction is applied to the latch lever 3 via the receiving pin 5. When actuated, the force acts as a force to rotate the restraining lever 12 counterclockwise from the latch lever 3 via the stop lever 8 and the linking lever 10, but the plunger 14 of the solenoid 13 causes the plunger 14 to protrude. In
Since the restricting lever 12 is at the rotation limit in the same direction, it cannot be rotated in the unlocking direction of the latch lever 3 by the receiving pin 5 in the end, and the locked state is accurately maintained. The railway vehicle can safely depart with the left and right doors 1, 1 firmly held in the closed position.

When the vehicle arrives at the next station and the doors 1 and 1 are opened by the door opening / closing mechanism 50, the solenoid 13 is energized in advance. This energization causes plunger 14
Is sucked into the solenoid body and comes to the unlocked position,
The restraint lever 12 is rotated clockwise against the bias of the spring 11, and the restraint lever 12 comes to the inoperative position away from the link lever 10. In this unlocking standby state,
When the door 1 is driven to open by the door opening / closing mechanism 50, the receiving pin 5 pushes the inner wall surface of the locking groove 4 to rotate the latch lever 3 in the clockwise direction, that is, in the unlocking direction. In this rotation process, the latch lever 3 rotates the stop lever 8 in the counterclockwise direction as shown in FIG.
Turns the link lever 10 clockwise. The linking lever 10 held obliquely upward is the restraining lever 1.
2 to hold the restraining lever 12 at the inoperative position, and thereafter, the power supply to the solenoid 13 is cut off. In the final stage of this process, the receiving pin 5 comes out of the locking groove 4 of the latch lever 3, and the mutual locking of the left and right doors 1, 1 is released (see FIG. 2).

According to the second aspect of the present invention, when the plunger 14 of the solenoid 13 cannot be sucked to the unlocking position due to a trouble in the electric system, the conductor uses the emergency unlocking lever installed inside or outside the vehicle near the door. By operating the remote control wire 15 connected to the emergency unlocking lever, the locking lever 12 is rotated clockwise.
As a result, the restriction lever mechanism of the latch lever 3 including the restraint lever 12, the link lever 10, and the stop lever 8 is invalidated, so that the doors 1, 1 can be unlocked and opened manually.

According to the invention of claim 3, the first switch 36
Is turned on by the drive unit 18 of the latch lever 3 when the latch lever 3 rotates to the locking position as shown in FIG. This detection signal passes through the required electrical wiring,
It is transmitted to the driver's seat of the railway car and the display panel of the cabin,
It notifies that the door 1 is in the locked state. Thus, the vehicle can be safely started by confirming that the door is locked.

According to the fourth aspect of the present invention, the second switch 37
As shown in FIG. 5, when the solenoid 13 is energized and the plunger 14 is sucked, the restricting lever 12 is turned on. This detection signal is transmitted to the driver's seat or the display panel in the conductor's cabin via the required electric wiring, and the rotation restriction of the latch lever 3 by the restriction lever mechanism including the restraint lever 12, the link lever 10, and the stop lever 8 is released. Notify that it was done. As described above, since it is possible to confirm that the door lock device has entered the standby state for unlocking, it is possible to start the door opening / closing mechanism 50 even though the door lock device is not in the unlockable state. Thereby, the risk of damaging the door lock device and the door opening / closing mechanism 50 is avoided. On the other hand, when the detection signal from the second switch 37 is not detected at all, it is a failure of the electric system related to the solenoid 13, and the operation immediately shifts to the manual unlocking operation by pulling the remote control wire 15.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, a passenger entry / exit opening 40 formed on a side surface of a railway vehicle is opened and closed by two left and right sliding doors 1,1. Left and right hanger brackets 54 are fixed to the upper end of each door 1, and wheels mounted on the upper ends of the hanger brackets 54 are mounted on guide rails 52 fixed to the vehicle body. The door opening / closing mechanism 50 is driven by a motor, and is fixed to the vehicle body above and parallel to the guide rail 52. A drive pulley 55 is connected to the output shaft of the motor 51, and the drive pulley 55
The chain 52 is stretched over the driven pulley 56. A connection arm 57 is fixed to the upper end of each of the left and right doors 1, and the tip of the connection arm 57 is connected to the chain 52. With such a configuration, by rotating the motor 51 forward and reverse through an appropriate control circuit,
The left and right doors 1, 1 are opened and closed in synchronization. The main body base 16 of the door lock device is fixed to the upper end surface of the left edge of the right door 1, and the receiver 2 is fixed to the upper end surface of the right edge of the left door 1.

The main body base 16 of the locking device is the right door 1
And the receiving money 2 is mounted on the left door 1. The latch lever 3 pivotally attached to the main body base 16 by the first pivot 17 has a locking groove 4 on the side surface where the receiving pin 5 is engaged and disengaged, and a driving portion on a peripheral surface opposite to the locking groove 4. The protrusion 18 is formed. The spring 6 is formed of a torsion coil spring, and the coil portion is fitted on the first pivot 17. One straight portion of the spring 6 abuts on the first fixing pin 19 of the main body base 6, and the other straight portion of the spring 6 projects from the projection 20 of the latch lever 3 adjacent to the locking groove 4. 1st fixing pin 1
Reference numeral 9 designates a rotation angle when the latch lever 3 rotates clockwise by engaging with the peripheral projection 21 of the latch lever 3. The first fixing pin 19 is connected to the driving unit 1.
8 engages with the upper raised shoulder to define a rotation angle when the latch lever 3 rotates counterclockwise.

The stop lever 8 is disposed adjacent to the latch lever 3, and passes through the intermediate elongated slot 22.
By 3, it is slidably and rotatably supported on the main body base 16. A follower 24 is formed at the left end of the stop lever 8, and a link 25 is formed at the right end. The spring 7 is constituted by a torsion coil spring, and the coil portion is fitted on the second pivot 23. One straight portion of the spring 7 contacts the spring receiving portion 26 of the stop lever 8, and the other straight portion contacts the second fixing pin 27 of the main body base 16. The lower surface of the right end of the stop lever 8 abuts against the second fixing pin 27, and holds the stop lever 8 in a horizontal position.
The spring 7 rotationally urges the latch lever 3 such that the upper end corner of the driven portion 24 engages with the lower shoulder surface of the driving portion 18.

The link lever 10 has a right end pivotally attached to the main body base 16 by a third pivot 28. Link lever 10
An upward projecting portion 29 is formed on one side of the left end.
The spring 9 is constituted by a torsion coil spring, and the coil portion is a third coil spring.
It is fitted on a pivot 28. One straight part of the spring 9 is
Abuts the base of the upward projection 29, and the other straight part is
It is in contact with the third fixing pin 31 of the main body base 16. The lower surface of the intermediate portion of the link lever 10 abuts on the third fixing pin 31 to hold the link lever 10 at a horizontal position. When in the horizontal position, the upward projection 29 of the link lever 10
Are engaged with the left side surface of the downward projection 30 of the restraining lever 12.

The restraining lever 12 is pivotally attached to the main body base 12 by a fourth pivot 32 at a position closer to the right side than the downwardly projecting portion 30. The right end is the fifth
The pivot 13 is connected to the tip of the plunger 14 of the solenoid 13. The spring 11 is formed by a compression coil spring, and is inserted between the left end of the restraining lever 12 and the spring receiving portion 34 of the main body base 16. A remote control wire 15 is connected to the left end of the restraint lever 12, and the wire 15 is inserted into the guide sheath 35. The solenoid 13 is fixed to a right end portion of the main body base 16.

A first switch 3 of a micro switch type is provided on the main body base 16 in close proximity to the driving portion 18 of the latch lever 3.
6 is mounted, and a limit switch type second switch 37 is mounted near the right end of the restraining lever 12. The first switch 36 and the second switch 27 are connected to the electric wiring via a terminal block 39. First
When the latch lever 3 is rotated to the locking position as shown in FIG. 4, the switch 36 is turned on by pushing the actuator lever by the drive unit 18.
The second switch 37 is connected to the solenoid 1 as shown in FIG.
When the power is supplied to the plunger 14 and the plunger 14 is sucked, the push button portion is pressed by the lower surface of the right end of the restraining lever 12 rotated in the clockwise direction.

[0023]

Operation of the embodiment As shown in FIG.
When the lock levers 3 are closed and locked with their side end surfaces abutting each other, the latch lever 3 is at a position where the locking groove 4 is opened directly below, and the rotational bias of the spring 6 is clockwise. . The stop lever 8, which is rotationally urged clockwise by the spring 7 and urged to slide to the left, has the upper end corner of the driven portion 24 meshing with the lower shoulder of the drive portion 18 of the latch lever 3. I have. The link lever 10 urged to rotate in the counterclockwise direction by the spring 9 has an end protruding leftward in contact with the upper surface of the link portion 25 of the stop lever 8. The restraining lever 12 urged to rotate counterclockwise by the spring 11 is in contact with the upward projection 29 of the stop lever 8 at the left side surface of the downward projection 30. The plunger 14 of the solenoid 13 is at its protruding limit, and the restraining lever 12, the link lever 10, and the stop lever 8 are in the horizontal position.

In the case where the lever mechanism for regulating the rotation of the latch lever is in such an arrangement state, when a force in the door opening direction acts on the door 1 due to any cause, the force acts on the receiving pin 5. Through the drive unit 18, the force to rotate the stop lever 8 in the counterclockwise direction, and the force is used to rotate the latch lever 3 in the counterclockwise direction. Link lever 10
Becomes a force that causes the plunger 14 of the solenoid 13 to rotate in the counterclockwise direction via the upwardly protruding portion 29. However, since the plunger 14 is already at the protruding limit, the latch lever 3 is rotated in the clockwise direction, that is, the unlocking direction by the external force applied from the receiving pin 5 in the door opening direction. It will not be done. The closed and locked states of the left and right doors 1, 1 are firmly maintained. Further, the contact point between the upward projection 29 of the link lever 10 and the downward projection 30 of the restraining lever 12 is placed on an extension of a straight line connecting the fifth pivot 33 and the fourth pivot 32, that is, at the dead center position. Also, the external force in the opening direction applied from the receiving pin 5 can be nullified, whereby the closed and locked state of the door 1 can be maintained firmly.

When the solenoid 13 is energized, the plunger 1
When the suction lever 4 is sucked toward the solenoid main body, the restraining lever 12 rotates clockwise around the fourth pivot 32 against the bias of the spring 11, and the downward projection 30 as shown in FIG. 10 away from the upward projection 29. The rotation of the restraint lever 12 to the non-operation position in this manner releases and invalidates the rotation restricting lever mechanism including the link lever 10 and the restraint lever 8 below the restraint lever 12, so that the door locking device is not provided. It is set to the unlocking standby state. Then, when the door opening / closing mechanism 50 is started and the door 1 is driven in the opening direction, the catching pin 5 pushes the inner wall surface on the left side of the locking groove 4, so that the latch lever 3 is moved about the first pivot 17. Rotate clockwise. With this rotation, the driving portion 18 of the latch lever 3 pushes down the driven portion 24 of the stopping lever 8, so that the stopping lever 8 rotates counterclockwise about the second pivot 23 against the bias of the spring 7. I do.

By this rotation, the link 25 of the stop lever 8 pushes up the tip of the link 10,
The linkage lever 10 rotates clockwise around the third pivot 28 against the bias of the spring 9, and the upward projection 29 of the linkage lever 10 becomes the downward projection of the restraining lever 12 as shown in FIG. Engage with the right side of 30. As a result, the restraining lever 12 is held at the non-operating position, so that energization of the solenoid 13 is interrupted at this stage, and seizure due to continuous energization is avoided. The door opening operation is continued and the receiving pin 5
Completely escapes from the locking groove 4 of the latch lever 3, the latch lever 3 continues to rotate clockwise by the bias of the spring 6, and the locking groove 4 is inclined downward as shown in FIG. 2. Come to the position. With the continued rotation of the latch lever 3, the contact point between the driven portion 24 of the stop lever 8 and the drive portion 18 of the latch lever 3 moves from the upper end corner of the driven portion 24 to the lower side, and with this movement. The stop lever 8 rotates clockwise about the second pivot 23 by the bias of the spring 7.

The rotation of the stop lever 8 is controlled by the second fixing pin 2.
7 is stopped in a horizontal state by the lower surface of the linking portion 25 abutting on the same. Following the movement of the stop lever 8, the link lever 10 rotates counterclockwise by the bias of the spring 9, and the restraining lever 12 rotates counterclockwise by the bias of the spring 11. Door 1 as shown in FIG.
Is unlocked and released, the left side surface of the downward projection 30 of the restraining lever 12 abuts the upward projection 29 of the linking lever 10, and the restraining lever 12 projects the plunger 14 of the solenoid 13 in a horizontal state. Is held.
As described above, the latch lever 3 is forcibly and continuously rotated in the unlocking direction by the bias of the spring 6, so that the subsequent stop lever 8, the link lever 10 and the restraint lever 12 are also reliably secured by the respective biasing springs. As a result, the lever mechanism after the latch lever 3 is not left halfway at the intermediate position between the locking position and the unlocking position.

When the door 1 is driven in the closing direction by the door opening / closing mechanism 50 after the passenger gets on and off, the receiving pin 5 is moved to the left side of the protrusion 20 of the latch lever 3 near the end of the closing operation as shown in FIG. The latch lever 3 is rotated counterclockwise around the first pivot 17 against the bias of the spring 6. When the door closing operation is continued and the receiving pin 5 enters the locking groove 4 of the latch lever 3, the latch lever 3 further continues to rotate in the counterclockwise direction. With the continued rotation of the latch lever 3, the contact point between the driven portion 24 of the stop lever 8 and the driving portion 18 of the latch lever 3 moves from the lower side of the driven portion 24 to the upper end corner, and with this movement. The stop lever 8 moves to the right by being guided by the horizontally long hole 22 and the second pivot 23, and the linking portion 25 of the stop lever 8 goes deep into the lower surface of the distal end of the link lever 10 (see FIG. 3).

When the closing operation of the door 1 is further continued, the driving portion 18 of the latch lever 3 passes by the driven portion 24 of the stop lever 8. At that moment, the stop lever 8 moves to the left while being guided by the horizontally long hole 22 and the second pivot 23 by the bias of the spring 7, and the upper end corner of the driven portion 24 engages with the lower shoulder of the drive portion 18. . At this stage, the receiving pin 5 has entered the locking groove 4 of the latch lever 3 to a required depth, and the left and right two doors 1, 1 locked together are stopped and held at the closed position (see FIG. 4). .

The door lock device according to the present invention is not limited to a railway vehicle in which the opening / closing opening 40 is opened and closed by the two left and right doors 1 and 1, but the opening / closing opening is opened and closed by the single door. In this case, the receiver 2 is mounted on a fixed frame or door at the opening for getting on and off, and the base body is mounted on a fixed frame at the door or the opening for getting on or off. Is done.

[0031]

According to the first aspect of the present invention, when the door is driven in the closing direction, the door is accurately and firmly locked at the closing position by the interlocking action of the mechanical lock mechanism. When the door is driven to open, the locking of the door by the mechanical lock mechanism is accurately and immediately released by an electric input, and the railway vehicle adopting a motor-driven door opening and closing mechanism instead of an air drive. In a sliding door, it is effectively used as a door lock device with high operation reliability.

According to the second aspect of the invention, in addition to the effect of the first aspect of the invention, even if any trouble occurs in the system related to the electric input at the time of unlocking, the remote control wire 15 can be used.
The door can be unlocked by towing the door, and the door can be opened accurately and immediately by manual operation, so that it can be used as a locking device for railway vehicle doors with high security.

According to the third aspect of the present invention, in addition to the effects of the first or second aspect of the present invention, by detecting the operating position of the latch lever 3 with the first switch 36, the locked and closed state of the door can be determined. Since it is possible to accurately confirm, the railway vehicle can be started with sufficient safety.

According to the fourth aspect of the present invention, in addition to the effect of any one of the first to third aspects of the present invention, the operating position of the restraining lever 12 is detected by the second switch 37 so that the latch lever 3 can be moved. Since it is possible to accurately confirm that the rotation restriction has been released and the lock release standby state has been entered, it is possible to safely start the door opening / closing mechanism by driving the motor in the next step. In addition, instead of the electric input, it is possible to immediately shift to manual unlocking by pulling the remote control wire 15.

[Brief description of the drawings]

FIG. 1 is a schematic side view of a railway vehicle to which a door lock device according to an embodiment of the present invention is applied.

FIG. 2 is a front view when the door lock device is unlocked (when the door is opened).

FIG. 3 is a front view of a locking operation (during closing the door) of the door lock device.

FIG. 4 is a front view of the door lock device when the door is locked (when the door is closed).

FIG. 5 is a front view of the door lock device during an unlocking operation (when a solenoid power is input).

FIG. 6 shows the unlocking operation of the door lock device (during door opening).
FIG.

FIG. 7 is a plan view showing a relative position between a receiver and a main body base of the door lock device.

FIG. 8 is a front view showing a relative position of a receiver and a main body base of the door lock device.

FIG. 9 is a left side view showing a relative position of a receiver and a main body base of the door lock device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Receiving money 3 Latch lever 4 Locking groove 5 Receiving pin 6 Spring 7 Spring 8 Stopping lever 9 Spring 10 Linking lever 11 Spring 12 Restraining lever 13 Solenoid 14 Plunger 15 Remote control wire 16 Body base 36 First switch 37 Second switch 40 Getting on / off opening 50 Motor driven door opening / closing mechanism

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Norio Ishizaka 1-11-1 Nishi-Ikebukuro, Toshima-ku, Tokyo East Japan Transport Tech Co., Ltd. (72) Inventor Koji Matsumoto 1-24 Nishi-Gotanda, Shinagawa-ku, Tokyo No. 4 Takigen Manufacturing Co., Ltd. F term (reference) 2E250 AA21 HH08 JJ49 KK02 LL01 MM01 NN04 PP04 PP05 QQ09 RR05 SS09

Claims (4)

[Claims] 1. An opening having a single door is mounted on one side of an opening frame or a door, and an opening having two doors is mounted on one of the doors. In the case of the receiving member 2 and the opening with one door, it is attached to the other side of the opening frame and the door, and in the opening with two doors, it is attached to the other side of the door. Then, at the end of the door closing operation by the door opening / closing mechanism, the door is pushed by the receiving pin 5 and the locking groove 4 is engaged with the receiving pin 5, thereby locking the door to the fixed frame body at the opening or another door. At the start of the door opening operation by the latch lever 3 and the door opening / closing mechanism, the receiving pin 5
When the latch lever 3 is rotated in the unlocking direction in which the receiving pin 5 escapes from the locking groove 4 by pressing the inner surface of the locking groove 4, the latch lever 3 is urged to rotate in the unlocking direction. The spring 6 is supported so as to be able to advance and retreat with respect to the latch lever 3. At the end of the door closing operation by the bias of the spring 7, the spring 6 advances to the latch lever 3 side to engage with a part of the latch lever 3, and And a stop lever 8 for stopping rotation of the lock lever in the unlocking direction. The stop lever 8 is disposed on the opposite side of the latch lever 3 with respect to the stop lever 8, and is pressed against the stop lever 8 by the rotation of the spring 9, and the stop lever 8 is released. A link lever 10 for holding the lock lever 3 at a stop position engaged with the latch lever 3, a link lever 10 disposed on the opposite side of the link lever 10 with respect to the link lever 10,
When a force in the door opening direction is applied via the receiving pin 5 at the door closing position at the door closing position, the latch lever 3 is prevented from rotating in the unlocking direction via the link lever 10 and the stop lever 8. A restraining lever 12 and a plunger 14 are connected to the restraining lever 12,
When the power is supplied during the opening drive of the door opening and closing mechanism, the plunger 14 performs a suction operation, thereby causing the restraining lever 12 to move.
A lock device for a door of a railway vehicle, comprising a solenoid 13 for detaching the lever from the link lever 10. 2. The remote control wire 15 is connected to the restraint lever 12.
The lock device for a railway vehicle door according to claim 1, wherein one end of the railcar is connected. 3. A latch according to claim 1, wherein a first switch for detecting an operating position of the latch lever and obtaining a lock state confirmation signal is provided close to the latch lever. 2. The lock device for a railway vehicle door according to claim 1. 4. A second switch 37 for detecting an operating position of the restraining lever 12 and obtaining a confirmation signal of an unlocked state is provided near the restraining lever 12.
4. The locking device for a railway vehicle door according to claim 3.