JP2003020843A - Unlocking structure of side sliding door for rolling stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a side sliding door to be unlocked by an operation outside a rolling stock while maintaining safety of passengers when electrical supply to the rolling stock is cut off, and enhance the durability, mounting workability and maintainability of an unlocking structure of the side sliding door. SOLUTION: An electric locking means 5, which is equipped with a mechanical release mechanism 36, is annexed to the side sliding door 3. The mechanism 36 of the locking means 5 and unlocking means 7 and 8 are coupled together by wire cables 47 and 48. An operation part 9 of the unlocking means 7 is arranged near the sliding door 3 inside the rolling stock so as to be made operable outside the rolling stock. The sliding door 3 is provided with a narrow- opening-of-door operating means 25 for allowing the sliding door 3 under a fully closed state to be opened a little. The width of narrow opening of the sliding door 3 using the means 25 is in a range which allows manual operations of the unlocking means 7 and 8 outside the rolling stock and makes the entrance/exit of a person impossible. The fully closed state of the sliding door 3 is maintained by a closing-of-door urging means 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a side-sliding door unlocking structure that can be manually opened and closed when the side-sliding door of a railway vehicle cannot be automatically opened or closed due to a power failure or the like.

[0002]

2. Description of the Related Art In a system in which a side sliding door of a railway vehicle is automatically opened and closed electrically, power supply may be stopped due to some failure, so that the side sliding door can be manually released to escape from the vehicle. A mechanical structure is added.

Further, in addition to the above-mentioned structure, when the power supply is stopped, the side sliding door is prevented from being opened from the viewpoint of safety for passengers, and when the vehicle is detained and the power supply is stopped, it is outside the vehicle. It is necessary to have the function of being able to open the side-sliding door from here. For, the locking state of the side-sliding door is held by the locking means, and for that, the locking means is released using the unlocking means. I am able to do it.

The locking means and the unlocking means are mechanical ones because it is necessary to operate them while power supply is stopped. The locking means is provided for each side sliding door, whereas the unlocking means is The operation section is provided near the center on the outside of the side surface of the vehicle, and the operation section and each locking means are connected by a wire cable that is a connecting means. By operating the operation section and pulling the wire cable, a plurality of side sliding doors are provided. You can unlock all of the vehicles at once.

[0005]

In such a structure, there is a considerable distance between the locking means and the operating portion of the unlocking means, and the wire length of the wire cable is considerably long. . As a result, the sliding resistance between the outer tube of the wire cable and the inner cable increases, and bending load and frictional force repeatedly act on both the inner cable and the outer tube, which may impair durability. Further, the pulling resistance of the wire cable is proportional to the length, and the wear amount increases as the wire cable becomes longer, so that it is disadvantageous to apply it to the Shinkansen vehicle in which the distance between the front and rear side sliding doors is 20 m or more. Further, since the wire cable is routed around a narrow space of the vehicle, the replacement of the wire cable has been a complicated task.

As a countermeasure against this, it is conceivable that the wire cables are made as short as possible by disposing the operating portions of the lock releasing means under the floor near the side sliding doors and unlocking the side sliding doors for each side sliding door. Since there are many bogies under the floor near the side sliding doors, there is not enough space for arrangement. In addition, in a high-speed railway Shinkansen vehicle, if the airtightness inside the vehicle is not sufficient, pressure fluctuations may occur when entering and exiting the tunnel, causing passengers to feel uncomfortable. When the part is placed under the floor, the wire cable is drawn from the underfloor into the vehicle, so it is necessary to maintain sufficient airtightness in the underfloor part where the wire cable is drawn in, and extra work is not required during production and maintenance. It costs.

Therefore, for a vehicle such as a Shinkansen vehicle which has a long vehicle body and a long distance between side sliding doors in front of and behind the vehicle body and in which airtightness of the vehicle body is required to be maintained, the wire cable system described above is used. Not preferable.

The present invention has been made in view of such circumstances, and an object of the present invention is to allow the side sliding door to be released from the outside of the vehicle while maintaining the safety of passengers when power supply is stopped, Another object of the present invention is to provide a lock release structure for a side sliding door for a railway vehicle, which can be applied regardless of the type of vehicle and has excellent durability, installation workability, and maintainability.

[0009]

According to the present invention, according to the above-mentioned object, an electric lock means having a mechanical release mechanism is connected to a side sliding door of a railroad vehicle, and a mechanical release mechanism of the lock means is provided. , A railway in which a mechanical lock releasing means arranged on the vehicle body side is connected by a connecting means, and when power supply is stopped, the locking means is released by operating the lock releasing means so that the side sliding door can be opened and closed. In the unlocking structure of a vehicle side sliding door, a small opening operating means is provided for disposing the operating portion of the unlocking means in the vicinity of the side sliding door inside the vehicle, and allowing the side sliding door to be opened from a fully closed state. With the provision
The small opening width of the side sliding door by the small opening operation means is set to a range in which the lock releasing means can be manually operated from the outside of the vehicle and a person cannot enter or leave.

The small opening width of the side sliding door is, for example, 60, 70.
mm-130, 140 mm, 100 mm ± 20 m
About m is more desirable. The operation part of the unlocking means may be provided inside the equipment such as the side pillars, door pockets, switchboards and the like near the side sliding doors, and may be provided at the lowest possible position so that it can be easily operated from the track outside the vehicle.

The side sliding door may be held in a fully closed state by a door tightening biasing means. The small opening state of the side sliding door using the small opening operation means can be held by the small opening holding means.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 to 13 show a first embodiment, FIG. 1 is a front view of a side sliding door, FIG. 2 is a front view of a side sliding door opening / closing means, and FIGS. 3 to 7 are operations using a solenoid of a locking means. 3 to 6 are sectional front views of the locking means, FIG. 7 is a plan view of the locking means, the door tightening biasing means, and the small opening operation means, and FIG. 8 is a mechanical release mechanism of the locking means. The sectional front view for explaining the operation used, and FIGS. 9 to 13 are front views for explaining the operation of the side sliding door opening / closing means, respectively.

In the railcar shown in the first embodiment of FIGS. 1 to 12, each of the side sliding doors 3 arranged at the side entrance / exit 2 of the side structure 1 has a side sliding door opening / closing means 4 arranged at an upper portion thereof. Is automatically opened and closed, and the mechanical lock means 5 is electrically operated to maintain the fully closed state of the side sliding door 3, and in an emergency such as power supply stop, the side located on both sides of the side doorway 2 The side sliding door 3 can be manually opened and closed by an operating portion 9 of mechanical lock releasing means 7 and 8 arranged inside the vehicle of the pillar 6 and a door pocket (not shown).

The side sliding door opening / closing means 4 includes an electric motor 10 as a power source, a belt mechanism 11 driven by the electric motor 10, and the side sliding door 3 operated by the belt mechanism 11.
And an opening / closing guide 12 for guiding opening / closing of the above, and the above-mentioned locking means 5 is additionally provided.

The belt mechanism 11 includes a drive-side pulley 13 that is rotationally driven by the output shaft of the electric motor 10 and a side entrance / exit 2.
A drive belt 15 is wound around a driven pulley 14 disposed on the door end side of the drive belt 15, and a belt grip 16 of an opening / closing guide 12 is sandwiched between the drive belt 15. The opening / closing guide 12 is a guide rail 20 disposed in the vehicle body front-rear direction of the side structure 1 along the lower side of the drive belt 15.
A strip plate-shaped slide plate 21 is slidably accommodated in the slide plate 21, and brackets 22 and 22 are fixedly mounted on the front and rear portions of the slide plate 21.
The belt grip 16 described above, the first latch 23 of the locking means 5, the door tightening urging means 24, and the small opening operation means 25 are arranged in the middle of the position 2.

The side sliding door 3 has the brackets 22 and 22 of the opening / closing guide 12 fixed to the upper part thereof and is slidably suspended between the side doorway 2 and the door bag (right side in FIGS. 1 and 2). When the drive belt 15 rotates counterclockwise in FIG. 2 due to the normal rotation of the motor 10, the drive belt 15 opens in the door pocket direction (right direction in FIG. 2), and the reverse rotation of the electric motor 10 causes the drive belt 15 to rotate clockwise in FIG. When it is rotated to the side, it closes in the direction of the side pillar 6 (leftward in FIG. 2).

The locking means 5 is provided in a casing 30 having a U-shaped cross section, which is fixed to the side structure 1 above the side entrance / exit 2.
A solenoid 32 and a latch mechanism 33 are arranged so as to face each other with the partition wall 31 interposed therebetween, and the top plate 3 of the casing 30 is arranged.
0a and the slide plate 34 and the first return spring 3 arranged above and below
A mechanical release mechanism 36 is constituted by 5 and.

The solenoid 32 is a rod 37 that can be retracted and retracted.
A second return spring 38 is contracted between it and a flange 37a located in the middle portion of the partition wall, and a pressing roller 39 is attached to the tip small diameter portion 37b inserted into the guide hole 31a of the partition wall 31. The solenoid 32 is normally off and the rod 3
7 is in an expanded state, and the pressing roller 39 projecting from the partition wall 31 toward the latch mechanism 33 is positioned on the upper surface of the tip 40a of the second latch 40 of the latch mechanism 33. Further, when the side sliding door 3 is opened in the door pocket direction rather than the small open state described later, the solenoid 32 is turned on to reduce the rod 37,
The pressing roller 39 is retracted from the upper surface of the tip 40a of the second latch 40.

The latch mechanism 33 has the above-mentioned second latch 40 pivotally supported by the support shaft 42 on the casing 30 at the base end opposite to the partition wall 31, and the support shaft 43 at the tip end side of the second latch 40.
The third latch 44 pivotally supported by the two latches 40, 44
And a third return spring 45 that is contracted between the two.

The second latch 40 has a U-shaped cross section.
A part of the top plate is projected to the partition wall side to form the above-mentioned tip 40a, and in a free state where no external force acts, the tip 40a is supported by the stopper 31b attached to the partition wall 31 and the partition wall 31 side is slightly downward. It is inclined. The restraining roller 39 of the solenoid 32 is adapted to be projected and retracted on the upper surface of the tip 40a of the free second latch 40 supported by the stopper 31b in this manner. A damper 46 made of rubber or soft resin is provided above the second latch 40 in the casing 3
It is fixed to the top plate 30a of No. 0 and serves as a cushioning material when the second latch 40 pivots upward about the support shaft 42 as a fulcrum.

A horizontally long plate material is used for the third latch 44, and the second latch 4 is provided in the large-diameter opening 44a provided on the side opposite to the partition wall.
No. 0 guide pin 40b is inserted, and the third latch 4
In the free state where no external force acts on the guide pin 4, the guide pin 40b
Supports the side opposite to the partition wall, the side opposite to the partition wall 31 is inclined slightly downward, and the third return spring 45 holds this inclined state.

In the third latch 44 in the free state, the corner portion 44b at the lower end of the tip projects downward from the casing 30 and is located above the first latch 23 of the locking means 5 and is a projecting piece 23a.
It is located on the slide locus of the solenoid 3
When 2 is OFF and the restraining roller 39 is projected to the upper surface of the tip 40a of the second latch 40, the restraining roller 39
Restricts the movement of the second latch 40, the side sliding door 3 is in the fully closed state, and the first latch 23 located on the side column 6 side with respect to the corner portion 44b causes the protruding piece 23a to move to the corner of the third latch 44. By contacting the portion 44b, the first latch 23 is prevented from sliding toward the door pocket (FIG. 3).

When the solenoid 32 is turned on from the above-mentioned state and the restraining roller 39 is retracted from the upper surface of the tip 40a of the second latch 40, the projecting piece 23a of the first latch 23 abuts the corner portion 44b, and the second, second The third latches 40 and 44 are rotated about the support shafts 42 and 43 as fulcrums and pushed up (FIG. 4), and the first latch 23 slides toward the door pocket side rather than the corner portion 44b (FIG. 5). The side sliding door 3 is opened toward the door pocket.

Further, the side sliding door 3 is opened to the door pocket side, the first latch 23 located on the door pocket side of the third latch 44 is slid toward the side pillar 6, and the projecting piece 23a is changed to the corner portion 44.
When it comes into contact with b, the solenoid 32 turns on and off
Irrespective of the above, the third latch 44 rotates about the support shaft 43 as a fulcrum and is pushed upward (FIG. 6), and the first latch 23 moves to the third position.
The side sliding door 3 is closed by sliding to the side pillar 6 side from the corner portion 44b of the latch 44.

The slide plate 34 of the mechanical release mechanism 36 is
The first return spring 35 is connected to the end of the latch mechanism 33 side,
The wire cables 47 and 48 of the lock releasing means 7 and 8 are connected to the ends on the solenoid 32 side so as to be slidable in the vehicle front-rear direction, and normally the traction force of the first return spring 35 causes the latch mechanism 33 side. Biased to the non-actuated position. An operating piece 34a is vertically provided at an intermediate portion of the slide plate 34 so as to project between the partition wall 31 and the flange 37a of the rod 37 of the solenoid 32. When the solenoid 32 is operating normally, the operating piece 34a is provided. Since there is no contact between the slide plate 34 and the flange 37a, the slide plate 34 does not operate.

In the mechanical release mechanism 36, the solenoid 32
If any of the wire cables 47 and 48 is pulled when the power supply to the solenoid 32 stops for some reason, the slide plate 34 slides on the top plate 30a of the casing 30 in the solenoid direction. , Operating piece 3
4a comes into contact with the flange 37a to reduce the rod 37,
Since the pressing roller 39 retracts from the upper surface of the tip 40a of the second latch 40, the projecting piece 23a of the first latch 23 pushes up the corner portion 44b of the third latch 44 (FIG. 8), and the side sliding door 3 moves toward the door pocket. It becomes possible to open. When the pulling of the wire cables 47, 48 is released, the slide plate 34 is returned to the non-operating position by the pulling of the first return spring 35, and the solenoid 32 and the latch mechanism 33 are also returned to the non-operating state.

One of the lock releasing means 7 is composed of an operating section 9 and a wire cable 47. The operating section 9 is housed in the lower end of the inside of the side pillar 6, and the opening / closing cover (whichever covers the inside of the side pillar 6 inside the vehicle). (Not shown) is provided so that the operation portion 9 can be operated from a low position outside the vehicle. The other unlocking means 8 is composed of an operating portion 9 and a wire cable 48,
The operation unit 9 is housed in the upper part of the interior of the door pocket, and an opening / closing cover (neither is shown) is provided on the interior plate of the door pocket so that the operation unit 9 can be operated at a high position inside the vehicle.

A lever or the like that rotates about a support shaft is used as the operating portion 9 of the unlocking means 7 and 8. By rotating this lever and pulling one of the wire cables 47 and 48, By operating the mechanical release mechanism 36 as described above, the side sliding door 3 can be manually opened and closed.

The slide plate 2 of the opening / closing guide 12
1, a guide bracket 50 and a magnet chuck 51 are fixed between the front and rear brackets 22, 22, and the first bracket 23 is attached to the guide bracket 50.
The door tightening biasing means 24 is supported on the side sliding door 3 so as to be slidable in the vehicle front-rear direction. The door tightening urging means 24 is configured by inserting the rod 52 into the guide bracket 50 in the vehicle front-rear direction, and compressing the fourth return spring 53 between the guide bracket 50 and the end portion of the rod 52 on the door pocket side. And the support plate 54 fixed to the end of the rod 52 protruding from the guide bracket 50 to the side pillar 6 side
The latch 23 is supported.

The first latch 23 is provided with a slide portion 55 which is screwed to the outside of the vehicle and a metal magnet chuck receiver 56 which projects on the track of the magnet chuck 51 inside the vehicle. The latch 23 and the slide portion 55 form a slide pack. The slide portion 55 is slidably supported by a guide rail 57 fixed to the vehicle inner side of the slide plate 21, and the rod 52, the first latch 23, the support plate 54, the slide portion 55, and the magnet chuck receiver 56 are side sliding doors. Three
With respect to the attachment member fixed to this, it can slide relatively in the vehicle front-rear direction.

On the side pillar 6 side of the lock means 5, a magnet catch separating stopper 58 is fixedly attached to the side structure 1, and the stopper 58 and the magnet chuck 51, the magnet chuck receiver 56, the first latch 23 and the door fastening. The biasing means 24 constitutes the small opening operation means 25, and the magnet chuck 51 and the magnet chuck receiver 56 constitute the small opening holding means 59.

When the side sliding door 3 is in the fully closed state shown in FIG. 9, the fourth return spring 53 of the door tightening urging means 24 is in a state of being compressed more than its free length, and the rod 52 is moved in the direction of the door pocket. The third latch 44 of the locking means 5 is being pulled by a large amount.
The first latch 23 located closer to the side pillar 6 than the protrusion 23a is
Is brought into contact with the corner portion 44b of the third latch 44.

In this state, the elastic force of the fourth return spring 53 acts on the side sliding door 3 in the direction of the side pillar 6 through the guide bracket 50, and holds the side sliding door 3 in the fully closed state. Therefore, the door tightening urging means 24 is provided with the first latch 2
The third and third latches 44, the guide bracket 50, the rod 52, the fourth return spring 53, the support plate 54, the slide portion 55, and the guide rail 57 are included.

In the fully closed state shown in FIG. 9, a predetermined gap A, for example 100 mm, is provided between the magnet chuck 51 and the magnet chuck receiver 56 of the small door holding means 59.
Is set, and the lock means 5 maintains the locked state shown in FIG.

FIG. 10 shows that when the side sliding door 3 is fully closed as shown in FIG. 9 and the power supply to the railway vehicle is stopped or the solenoid 32 fails, the side sliding door 3 is manually operated from inside or outside the vehicle. , Shows a state of being opened 50 mm in the direction of the door pocket. In this state, the first latch 23 and the door tightening urging means 24 integrated with the first latch 23 have the protrusion 23a and the third latch 44.
Although the movement of the side sliding door 3 is restricted by the contact with the corner portion 44b of the side sliding door 3 and the same position as in the fully closed state of the side sliding door 3 is held, the guide bracket 50 moves in the door sliding direction together with the side sliding door 3. Therefore, the fourth return spring 53 is in a further compressed state. Also, the magnet chuck 5
Since 1 moves together with the side sliding door 3, the distance between the magnet chuck receiver 56 and A is 100 (100 mm) -50 mm.
= 50 mm.

FIG. 11 shows a state in which the side-opening door 3 is opened 100 mm toward the door pocket by continuing the door-opening operation from the state shown in FIG. In this state, the side sliding door 3 is restricted from sliding in the door pocket direction, and the first latch 23 and the door tightening biasing means 24 are also restricted from moving in the door pocket direction. Further, the fourth return spring 53 is further compressed, and the magnet chuck 51 fills the gap A (100 mm) between the magnet chuck 51 and the magnet chuck receiver 56 and attracts the magnet chuck receiver 56.

For the small opening width of 100 mm of the side sliding door 3 set in FIG. 11, a worker outside the vehicle inserts his / her hand and manually operates the operating portion 9 of the unlocking means 7 on the side pillar 6 side. If there are passengers inside the vehicle with a width that is suitable for restricting the entry and exit of people inside and outside the vehicle, the outside of the vehicle can be protected while restricting the passengers from exiting the vehicle and maintaining safety. The unlocking means 7 can be operated. The attraction between the magnet chuck 51 and the magnet chuck receiver 56 of the small opening holding means 59 restricts the movement of the side sliding door 3 toward returning to the side pillar 6 and maintains the small opening width 100 mm of the side entrance / exit 2. In this way, the operating portion 9 of the lock releasing means 7 is operated, the mechanical releasing mechanism 36 of the lock means 5 is operated as described above, and the regulation by the third latch 44 is released, whereby the side sliding door 3 is opened. Fully open manually.

FIG. 12 shows a state in which the side sliding door 3 is closed in the direction of the side pillar 6 to a distance of 50 mm remaining. In this state, the magnet chuck receiver 56 is still attracted to the magnet chuck 51, and the first latch 23 and the door tightening biasing means 24 are integrally moved in the direction of the side pillar 6.

FIG. 13 shows a state in which the side sliding door 3 is closed in the direction of the side pillar 6 to a distance of 10 mm or less. In this state, the magnet chuck receiver 56 is still attracted to the magnet chuck 51, and the first latch 23
The protruding piece 23a is a stopper 58 for separating the magnetic catch.
Is in contact with.

Then, the side sliding door 3 is brought into a fully closed state and the state shown in FIG. 9 is restored. In this state, the attraction between the magnet chuck 51 and the magnet chuck receiver 56 is released, and the first latch 23 and the door tightening biasing means 24 move to the fourth position.
The return spring 53 is urged toward the door pocket by the elastic force, and the protrusion 23a of the first latch 23 abuts on the corner 44b of the third latch 44 of the lock means 5 to bias the first latch 23 and the door. The backward limit of the means 24 is restricted. Further, the elastic force of the fourth return spring 53 acts on the side sliding door 3 in the direction of the side pillar 6 through the guide bracket 50 and maintains the fully closed state of the side sliding door 3.

Next, the second to third embodiments of the present invention will be described with reference to FIG.
~ It demonstrates based on FIG. In the figure, the same components as those of the above-described first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

FIGS. 14 to 17 show a second embodiment of the present invention, which serves as a connecting means for connecting the mechanical release mechanism 60 of the lock means 5 and the operating portions 9, 9 of the lock release means 7, 8. The difference from the first embodiment is that a link mechanism 61 including a plurality of rods and a link lever is used.

On the lock means 5 side of the link mechanism 61, a mechanical release mechanism 60 using a link lever is supported by a support shaft 62 at an intermediate portion, and a fork 60a on one end side is provided with a partition wall 31 of the lock means 5. The rod 37 is sandwiched between and the flange 37a, and the other end is connected to the rod 61a of the link mechanism 61.

When the solenoid 32 breaks down or the energization is stopped, the link mechanism 61 is pulled by operating the operating portion 9 of the lock releasing means 7 from the outside of the vehicle, and the mechanical releasing mechanism 60 shown in FIG. 16, the rod 37 of the solenoid 32 is contracted by rotating counterclockwise as shown in FIG. 16, and the pressing roller 39 is moved to the tip 40a of the second latch 40.
The side sliding door 3 can be manually opened by retracting it from the upper surface.

The operating portion 9 of the unlocking means 8 for in-vehicle operation
Is provided at an intermediate portion of a link mechanism 61 connected to the operating portion 9 of the unlocking means 7 for operating outside the vehicle, and the link mechanism 61, which is a connecting means, is operated by the operating portions 9, 9 of both the unlocking means 7, 8. By combining the two, the economic effect is enhanced.

FIG. 18 shows a third embodiment in which the present invention is applied to a Shinkansen vehicle having two side sliding doors in front of and behind the vehicle, a limited express vehicle, and the like. 9 is accommodated in the lower part of the pillar barbed 70 with a grip bar arranged in the vicinity of the side entrance / exit, and is openably / closably covered by a cover 71 to enhance operability from the outside of the vehicle.

Although the small open door holding means of the above-mentioned embodiment is a magnet type using a magnet chuck and a magnet chuck receiver, the present invention is not limited to a mechanical type such as ball catch and engagement / disengagement of claws. You can also do it. Further, like a door closer, a spring, a damper, and oil may be used to slowly perform the operation in the door tightening direction, and the lock releasing means may be operated while the door is closed.

[0048]

As described above, according to the unlocking structure of the side sliding door for the railroad vehicle of the present invention, when the power supply to the railroad vehicle is stopped for some reason, the worker outside the vehicle pulls out the side sliding door. By manually operating the small opening door, inserting a hand through the opening, and manually operating the operating portion of the lock releasing means, the locking means can be released to open the side sliding door. Even if there are passengers inside the vehicle, the small opening width of the side sliding door is such that the lock releasing means can be manually operated from the outside of the side sliding door and no one can enter or leave the passenger. It is possible to operate the lock releasing means from the outside of the vehicle while controlling safety of the vehicle from the outside of the vehicle and maintaining safety.

Further, since the unlocking means is provided for each side sliding door, it can be applied to various types of railway vehicles. Moreover, since the operation part of the unlocking means is arranged in the vicinity of the side sliding door inside the vehicle, not only the workability is excellent, but also the length of the connecting means such as a wire rope or rod connecting the side sliding door and the operating part of the unlocking means. Since the length can be shortened, it is possible to improve installation workability, durability, and maintainability.

Further, since the fully closed state of the side sliding door is held by the door tightening biasing means, the safety of passengers and passengers can be further improved. Furthermore, by holding the small opening state of the side sliding door by the small opening holding means,
Since both hands of the worker are open, the door-opening work can be performed easily in a short time.

[Brief description of drawings]

FIG. 1 is a front view of a side entrance / exit showing a first embodiment of the present invention.

FIG. 2 is a front view of a side sliding door opening / closing means showing a first embodiment of the present invention.

FIG. 3 is a cross-sectional front view of the locking means showing the first embodiment of the present invention.

FIG. 4 is a cross-sectional front view of the locking means showing the first embodiment of the present invention.

FIG. 5 is a cross-sectional front view of the locking means showing the first embodiment of the present invention.

FIG. 6 is a cross-sectional front view of the locking means showing the first embodiment of the present invention.

FIG. 7 is a plan view of the locking means, the door tightening biasing means, and the small opening operation means showing the first embodiment of the present invention.

FIG. 8 is a sectional front view for explaining the operation of the lock means according to the first embodiment of the present invention using the mechanical release mechanism.

FIG. 9 is a front view for explaining the operation of the side sliding door opening / closing means showing the first embodiment of the present invention.

FIG. 10 is a front view for explaining the operation of the side sliding door opening / closing means showing the first embodiment of the present invention.

FIG. 11 is a front view for explaining the operation of the side sliding door opening / closing means showing the first embodiment of the present invention.

FIG. 12 is a front view for explaining the operation of the side sliding door opening / closing means showing the first embodiment of the present invention.

FIG. 13 is a front view for explaining the operation of the side sliding door opening / closing means showing the first embodiment of the present invention.

FIG. 14 is a front view of a side sliding door showing a second embodiment of the present invention.

FIG. 15 is a sectional front view of the locking means showing the second embodiment of the present invention.

FIG. 16 is a sectional front view of the locking means showing the second embodiment of the present invention.

FIG. 17 is a side view of the lock releasing means showing the second embodiment of the present invention.

FIG. 18 is a perspective view of the vicinity of a side entrance / exit showing a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Side structure, 2 ... Side entrance / exit, 3 ... Side sliding door, 4 ... Side sliding door opening / closing means, 5 ... Locking means, 6 ... Side pillar, 7,8 ... Unlocking means, 10 ... Electric motor, 11 ... Belt mechanism,
12 ... Opening / closing guide, 15 ... Driving belt, 20 ... Guide rail, 21 ... Slide plate, 23 ... First latch, 2
3a ... projection piece, 24 ... door tightening biasing means, 25 ... small door opening operation means, 30 ... casing, 30 inside, 31 ... partition wall, 31
a ... Guide hole, 32 ... Solenoid, 33 ... Latch mechanism,
34 ... Slide plate, 35 ... First return spring, 36 ... Mechanical release mechanism, 37 ... Rod, 37a ... Flange, 37b ...
Tip small diameter portion, 38 ... second return spring, 39 ... pressing roller,
40 ... Second latch, 40a ... Tip, 40b ... Guide pin, 44 ... Third latch, 44a ... Opening, 44b ... Corner,
45 ... 3rd return spring, 47, 48 ... Wire cable, 5
0 ... Guide bracket, 51 ... Magnet chuck, 5
3 ... 4th return spring, 54 ... Support plate, 55 ... Slide part, 56 ... Magnet chuck receiver, 57 ... Guide rail, 58 ... Magnet catch separation stopper, 59
... Small door holding means, 60 ... Mechanical release mechanism, 60a ... Fork, 61 ... Link mechanism, 70 ... Pillar with grip bar,
71 ... Cover

Claims (3)

[Claims] 1. A side sliding door of a railway vehicle is connected to an electric lock means having a mechanical release mechanism, and the mechanical release mechanism of the lock means and a mechanical lock release means arranged on the vehicle body side. In a lock release structure for a side sliding door for a railroad vehicle, which is configured to be capable of opening and closing the side sliding door by operating the lock releasing means when the power supply is stopped, The operation part of the side sliding door is disposed in the vicinity of the side sliding door inside the vehicle, and the side sliding door is provided with a small opening operation means for allowing the small opening from the fully closed state, and the small side opening door is operated by the small opening operation means. A lock releasing structure for a side sliding door for a railroad vehicle, wherein a door opening width is set in a range in which the lock releasing means can be manually operated from the outside of the vehicle and no one can enter or leave. 2. The unlocking structure for a side sliding door for a railway vehicle according to claim 1, wherein the side sliding door is held in a fully closed state by a door tightening biasing means. 3. The side sliding door for a railway vehicle according to claim 1, wherein a small opening state of the side sliding door using the small opening operating means is held by a small opening holding means. Unlock structure.