JP3860108B2 - Plug door device for railway vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a plug door device in a railway vehicle.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, in a railway vehicle, a plug stroke type door device in which a door is opened and closed along an inner surface or an outer surface of a vehicle body by operation of a door engine, a so-called plug door device is known (see, for example, Patent Document 1). In such a plug door device, upper and lower guide rails for guiding the upper and lower portions of the door are arranged at the upper and lower portions of the door opening of the vehicle body, and the door upper portion is driven inside the vehicle body by being driven by the door engine. After being moved to the outer side or the door outer side, it is moved forward or backward along the inner side surface or outer side surface of the vehicle body.
[0003]
In such a plug door device, usually, when a plug is stroked, only the upper part of the door is driven by the door engine and the lower part of the door is caused to follow the door, thereby causing the door to follow the inner side surface or the outer side surface of the vehicle body. Stroke in parallel.
[0004]
[Patent Document 1]
Japanese Utility Model Publication No. 7-40346 (FIGS. 1 and 2)
[0005]
[Problems to be solved by the invention]
In such a plug door device, the door is parallel to the inner side surface or the outer side surface of the vehicle body by connecting the upper part of the door to the door engine, moving only the upper part of the door by the door engine, and causing the lower part of the door to follow it. Stroke to. Therefore, since only the upper part of the door is driven, the upper and lower parts of the door are structured to make the same movement (stroke), and thus there is a tendency that the movement of the door becomes unreasonable.
[0006]
In particular, in the case of a vehicle having a vehicle body whose longitudinal section is almost circular, if a required stroke amount is to be secured at the upper portion of the door, an unnecessarily large stroke amount is required at the lower portion of the door. Therefore, the space required for opening and closing the door is increased at present.
[0007]
It is an object of the present invention to provide a plug door device in a railway vehicle that can perform a stroke without difficulty in the upper and lower parts of the door by reducing the movement of the lower part of the door far from the upper part of the door driven by the door engine. .
[0008]
[Means for Solving the Problems]
According to the first aspect of the present invention, upper and lower guide rails for guiding the upper and lower portions of the door are provided at the upper and lower portions of the door opening of the vehicle body, and the door upper portion is driven inwardly by driving the door upper portion with a door engine. In a plug door device in a railway vehicle that is moved forward or backward along the vehicle body surface after being moved to the side , the upper guide rail and the lower guide rail are respectively inclined to guide the movement of the door to the vehicle body inward side. a rail portion, and a straight rail portion for guiding the movement of the vehicle body longitudinal direction of the door, located on the vehicle body inner side than the lower guide rail toward the upper guide rail, the inclination of the lower guide rail The rail portion is shorter than the inclined rail portion of the upper guide rail so as to reduce the stroke amount toward the vehicle body inward side .
[0009]
In this way, when the door is opened, if the upper part of the door is driven by the door engine and moved in the door opening direction, the upper and lower parts of the door move along the upper and lower upper and lower guide rails. Are each guided.
[0010]
At this time, since only the upper part of the door is driven by the door engine to move, the lower part of the door away from the door engine follows the movement of the upper part of the door. Since the stroke amount to the vehicle interior side at the lower part of the door is set to be smaller than the upper part of the door guided by the upper guide rail, the stroke amount to the vehicle interior side at the lower part of the door (that is, lower The stroke amount of the lower portion of the door guided to the vehicle body inward side by the side guide rail is reduced. This is because the inclined rail portion of the lower guide rail is configured to be shorter than the inclined rail portion of the upper guide rail so as to reduce the stroke amount toward the vehicle inner side. Realized.
[0011]
Therefore, since the lower part of the door has a stroke amount (to the inside of the vehicle body) that can follow the movement of the upper part of the door without difficulty, the lower part of the door is not forced to be dragged by driving the upper part of the door. The lower stroke of the door can be performed without difficulty. Further, since the stroke amount toward the vehicle body inward side of the lower part of the door is reduced, it is possible to effectively use the margin space generated in the lower part of the vehicle body (region where the door opens and closes).
[0013]
In the configuration as described above, as described in claim 3, the vehicle body has a substantially circular cross-sectional shape, the door has a circular cross-sectional shape corresponding to the shape of the vehicle body, and the upper guide rail is arranged at the front and rear of the upper portion of the door. The lower guide rail is particularly effective when it has a rear guide rail that guides only the rear part of the lower part of the door.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0015]
1 is a longitudinal sectional view showing a closed state of a door, FIG. 2 is a plan view of the device, FIG. 3 is a side view thereof, and FIG. It is the longitudinal cross-sectional view which shows the open state of. In this specification, the left side of the drawings in FIGS. 2 and 3 is the front side, and the right side is the rear side.
[0016]
As shown in FIGS. 1 to 3, a plug door device in a railway vehicle opens and closes a plug stroke type door (plug door), and is a door opening 12 of a vehicle body 11 having a substantially vertical circular shape (that is, a substantially cylindrical shape). Upper and lower guide rails 14 and 15 for guiding the upper and lower portions of the plug door 13 are disposed at the upper and lower portions. The door 13 has a curved shape (substantially vertical arc shape) corresponding to the shape of the vehicle body 11.
[0017]
The upper guide rail 14 includes a first rail 14A (front guide rail) for guiding the rear portion (door side) of the door 13 and a second rail 14B (rear side) for guiding the front portion (door bottom side) of the door 13. Side guide rail). The first and second rails 14A and 14B are both inclined with respect to the longitudinal direction of the vehicle body and inclined rail portions 14Aa and 14Ba for guiding the movement of the door 13 inward of the vehicle body. 13 linear rail portions 14Ab and 14Bb for guiding movement in the longitudinal direction of the vehicle body. The straight rail portions 14Ab and 14Bb of the first and second rails 14A and 14B are arranged so as to be located on the same straight line in the longitudinal direction of the vehicle body.
[0018]
The first rail 14A has a smaller inclination angle of the inclined rail portions 14Aa and 14Ba with respect to the straight rail portions 14Ab and 14Bb than the second rail 14B, and the front side (door bottom side) of the door 13 is the rear side. It moves to the inside of the vehicle more slowly than the (door side). That is, the second rail 14B is approximately 45 degrees, while the first rail 14A is approximately 35 degrees.
[0019]
A first vertical plate member 15A is spanned between the first and second rails 14A and 14B, and is fixedly mounted. The first vertical plate member 15A is provided with connecting brackets 16 and 17 at two positions on the front and rear sides thereof. The connecting brackets 16 and 17 are rotatably supported by support members 19 and 20 attached to the roof structure 18 by shaft members 21 and 22 extending in the longitudinal direction of the vehicle body. That is, the connecting brackets 16 and 17 are provided with bearing portions protruding inward of the vehicle body, and the protruding portions of the support members 19 and 20 are rotatable via the shaft members 21 and 22 at the bearing portions of the connecting brackets 16 and 17. It is connected to. Note that the first vertical plate member 15A and the inclined rail portion 14Aa of the first rail 14A are connected via a coupling member 23 to enhance support rigidity.
[0020]
A second vertical plate member 25 is attached and fixed near the rear end (termination) of the second rail 14B. The second vertical plate member 25 is also provided with a connecting bracket 26, and the connecting bracket 26 is rotatably supported by a support member 27 attached to the roof structure 18 by a shaft member 28 extending in the longitudinal direction of the vehicle body. It is set as the structure.
[0021]
Further, an air cylinder 31 as a driving means for opening and closing the plug door is attached to the first vertical plate member 15A together with an electromagnetic switching valve means 32 for controlling the driving thereof.
[0022]
A pair of rotating rollers 41 are configured to roll in the second rail 14B of the upper guide rail 14, and the pair of rotating rollers 41 are rotatably supported on the rear upper portion of the door 13. Yes. Specifically, a support bracket 43 is provided on the upper portion of the door via the mounting bracket 42, and is cross-sectioned in a horizontal portion 43a of the support bracket 43 (a portion extending below the second rail 14B toward the vehicle body inward side). A U-shaped roller support bracket 44 is provided, and the pair of rotating rollers 41 are rotatably supported by the roller support bracket 44.
[0023]
On the other hand, a pair of rotating rollers 45 that roll in the first rail 14 </ b> A of the upper guide rail 14 is also rotatably supported on the front upper portion of the door 13 in the same manner as the rotating roller 41. Specifically, a support bracket 47 is provided on the upper portion of the door via the mounting bracket 46, and a roller support bracket 48 having a U-shaped cross section is provided on the horizontal portion of the support bracket 47. A pair of rotating rollers 45 are rotatably supported.
[0024]
The support bracket 43 has a vertical portion 43b extending vertically upward from the inner end of the horizontal portion 43a, and a guide member 51 extending outward of the vehicle body is provided at the upper end of the vertical portion 43b. The tip of the piston rod 31a of the air cylinder 31 is engaged with the guide member 51 so as to be movable in the vehicle body width direction. Thereby, when the piston rod 31a protrudes by the operation of the air cylinder 31, the guide member 51 moves in the longitudinal direction of the vehicle body together with the front end portion of the piston rod 31a, so that the door provided with the guide member 51 is guided by It moves in the opening direction while being guided by the rails 14 and 15. That is, the engagement position of the guide member 51 with respect to the distal end portion of the piston rod 31a changes from the proximal end side to the distal end side.
[0025]
As shown in FIGS. 8 and 9, the lower guide rail 15 also includes an inclined rail portion 15 a that is inclined with respect to the longitudinal direction of the vehicle body and a linear rail portion 15 b that is parallel to the longitudinal direction of the vehicle body. The straight rail portion 15b is arranged in parallel with the straight rail portions 14Ab and 14Bb of the first and second rails 14A and 14B in the longitudinal direction of the vehicle body. And it is attached to the underframe 51 via a pair of attachment members 52 and 53 at the site of the straight rail portion 15b. A rotating roller 55 attached to the lower guide rail 15 via a roller support bracket 54 is engaged with the lower part of the rear portion (door bottom side) of the plug door 13 so as to allow rolling.
[0026]
As shown in FIG. 4, the stroke amount L1 to the vehicle body inward side of the upper part of the plug door 13 is set to be larger than the stroke amount L2 to the vehicle inner side of the lower part of the door. That is, the stroke amount L1 of the plug door 13 toward the vehicle body inner side is such that the upper part of the door by the upper guide rail 14 (first and second rails 14A, 14B) is lower than the lower part of the door by the lower guide rail 15. It is set to be large. Therefore, the inclined rail portion 15a of the lower guide rail 15 is more inward of the vehicle body than the inclined rail portions 14Aa and 14Ba of the upper guide rail 14 (first and second rails 14A and 14B). It is formed short so that the stroke amount becomes small.
[0027]
In this example, the door upper portion and the door lower portion are curved so as to protrude outwardly so as to be shifted by about 400 mm in the left-right direction of the vehicle body, and when the height in the vertical direction of the vehicle body is about 1850 mm, The plug-in stroke amount is about L1 = 140 mm at the upper part of the door and about L2 = 100 mm at the lower part of the door. Therefore, the stroke amount inward of the vehicle body by the lower guide rail 15 at the lower portion of the door is about 70% of the stroke amount inward of the vehicle body by the upper guide rail 14 at the upper portion of the door.
[0028]
Although not specifically shown, the open or closed state of the door is detected by a limit switch or the like, thereby restricting the operation of the air cylinder 31.
[0029]
If comprised as mentioned above, when the door is opened, the upper and lower portions of the door are guided by the upper and lower guide rails 13 and 14 by driving the air cylinder 31 (door engine). That is, when the piston rod 31a is projected and the upper part of the plug door 13 is moved rearward of the vehicle body, the upper and lower sides of the door opening of the vehicle body 11 and the inclined rail portions of the lower guide rails 14 and 15 are aligned. The movement of the door 13 is guided, and the state shown in FIG. 10 (a) is changed to the state shown in FIG. 10 (b).
[0030]
At this time, the upper part of the door near the air cylinder 31 that is the driving source is smoothly inward of the vehicle body along the inclined rail portions 14Aa and 14Ba of the first and second rails 14A and 14B constituting the upper guide rail 14. (The engagement position between the tip of the piston rod 31a and the guide member 51 changes). However, the first rail 14A has a smaller inclination angle of the inclined rail portions 14Aa and 14Ba with respect to the straight rail portions 14Ab and 14Bb than the second rail 14B. It moves slowly inward of the vehicle body behind the rear (door side).
[0031]
On the other hand, the lower part of the door of the plug door 13 follows the movement of the upper part of the door and is away from the upper part of the driven door, so that the movement toward the inner side of the vehicle body tends to be slightly delayed from the upper part of the door.
[0032]
By the way, the plug door 13 is set such that the upper part of the door by the upper guide rail 14 is set to have a larger stroke amount inward of the vehicle body than the lower part of the door by the lower guide rail 15. Even if the movement toward the door is slightly delayed from the upper part of the door, when the upper part of the door reaches the intersection of the inclined rail parts 14Aa, 14Ba and the straight rail parts 14Ab, 14Bb, the lower part of the door also has the inclined rail part 15a and the straight rail part 15b. And reach the intersection with. That is, the lower part of the door of the plug door 13 has a smaller stroke amount toward the vehicle interior side than the upper part of the door, and the upper and lower parts of the door almost simultaneously intersect the inclined rail parts 14Aa, 14Ba, 15a and the linear rail parts 14Ab, 14Bb, 15b. To reach.
[0033]
Then, due to the further stroke of the piston rod 31a of the air cylinder 31, the upper and lower parts of the door are shifted from the inclined rail parts 14Aa, 14Ba, 15a to the guidance by the linear rail parts 14Ab, 14Bb, 15b without difficulty. Then, the door is opened by being guided by the linear rail portions 14Ab, 14Bb, and 15b.
[0034]
Therefore, when the door is opened, the lower part of the door is not forcibly dragged, so that a plug-in stroke toward the inner side of the vehicle body can be performed. In particular, since the stroke amount to the vehicle body inward side of the lower part of the door is reduced, it is possible to effectively use the space generated in the lower part of the vehicle body 11 (region where the door opens and closes).
[0035]
In the embodiment described above, an example in which the vehicle body has a substantially circular cross section and the door has a substantially circular arc shape corresponding to the shape of the vehicle body has been described, as shown in FIGS. 11 (a) and 11 (b). Thus, the present invention can also be applied to a vehicle body 61 having a substantially rectangular shape (box shape) and a plug door 62 having a flat shape. Here, the stroke amount L11 to the inside of the vehicle body at the upper part of the door is larger than the stroke amount L12 to the inside of the vehicle body at the lower part of the door, and when the plug door 62 is drawn into the vehicle interior and moves linearly, the upper part of the door is the door. It is in an inclined state located on the inner side of the vehicle body from the lower part. Of course, such movement of the plug door 62 is performed by guidance by the upper and lower guide rails.
[0036]
【The invention's effect】
In the present invention, as described above, the upper guide rail and the lower guide rail respectively guide the movement of the door in the longitudinal direction of the vehicle body and the inclined rail portion that guides the movement of the door inward of the vehicle body. A straight rail portion, the upper guide rail is positioned on the inner side of the vehicle body than the lower guide rail, the inclined rail portion of the lower guide rail is more than the inclined rail portion of the upper guide rail, Since the stroke amount to the inward side of the vehicle body is short , the stroke amount to the inward side of the vehicle body guided by the lower guide rail when the door is opened is guided by the upper guide rail. is less lost than the stroke of the upper door is, to smooth the movement of the door upper and lower portions of the door opening and closing, can be performed without forcibly open and close the door. In addition, since the stroke amount of the lower part of the door to the vehicle body inward side is reduced, it is possible to effectively use the extra space generated in the lower part of the vehicle body (region where the door is opened and closed).
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of a plug door device in a railway vehicle according to the present invention, showing a closed state of the door.
FIG. 2 is a plan view of the plug door device.
FIG. 3 is a side view of the plug door device.
FIG. 4 is a longitudinal sectional view showing an open state of a plug door of the plug door device.
FIG. 5 is a detailed view of the vicinity of the upper portion of the door in FIG.
6 is a cross-sectional view taken along line AA in FIG.
7 is a cross-sectional view taken along line BB in FIG. 3. FIG.
FIG. 8 is a plan view of the vicinity of a lower guide rail.
FIG. 9 is a side view of the same.
FIGS. 10A and 10B are schematic explanatory views of the movement of the door of the plug door device, respectively.
FIGS. 11A and 11B are schematic explanatory views of the movement of the door of the plug door device according to a modification.
[Explanation of symbols]
11 Car body 12 Door opening 13 Plug door 14 Upper guide rail 14A First rail 14Aa Inclined rail portion 14Ab Straight rail portion 14B Second rail 14Ba Inclined rail portion 14Bb Straight rail portion 15 Lower guide rail 15a Inclined rail portion 15b Straight rail Portion 31 Air cylinder 41, 45, 55 Rotating roller 61 Car body 62 Plug door

Claims (2)

After the upper and lower guide rails that guide the upper and lower parts of the door are arranged at the upper and lower parts of the door opening of the car body, and the door upper part is driven by the door engine, the door is once moved inward of the car body. In a plug door device in a railway vehicle that moves forward or backward along a vehicle body surface,
Each of the upper guide rail and the lower guide rail has an inclined rail portion that guides the movement of the door inward of the vehicle body, and a linear rail portion that guides the movement of the door in the longitudinal direction of the vehicle body,
The upper guide rail is positioned closer to the vehicle interior side than the lower guide rail, and the tilted rail portion of the lower guide rail travels inward of the vehicle body relative to the tilted rail portion of the upper guide rail. A plug door device in a railway vehicle, wherein the plug door device is formed so as to be small . The vehicle body has a substantially vertical cross-sectional circular shape, and the door has a substantially vertical circular arc shape corresponding to the shape of the vehicle body,
The upper guide rail has front and rear guide rails for guiding the front and rear of the upper part of the door, respectively.
The lower guide rails, plug door apparatus in a railway vehicle according to claim 1, further comprising a side guide rail after guiding only the rear part of the door bottom.

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