JP3438069B2 - Vehicle ladder device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an emergency ladder device suitable for high-floor vehicles such as railway vehicles.

[0002]

2. Description of the Related Art A high-floor vehicle such as a railroad vehicle has a large height difference from a road floor to a passenger floor. For this reason, it is difficult for an occupant to descend directly from the passenger cabin to the roadbed when the vehicle is in an emergency stop.Therefore, the idea of an emergency staircase / emergency ladder to safely blame the occupant has been proposed. Have been made (see JP-B-57-59096, JP-B-62-24000, etc.).

[0003]

However, although the conventional emergency stairs / emergency ladders are variously considered in terms of operability, the emergency stairs / emergency ladders are arranged in the vehicle at the time of storage. There was room for improvement in that the installation location was restricted due to the necessity, and the structure was complicated due to the large number of components. The present invention has been made in view of the above problems, and an object of the present invention is to provide a ladder device that has few restrictions on the installation location and has a simple structure.

[0004]

In order to solve the above-mentioned problems, a vehicle ladder device according to claim 1 of the present invention comprises a tread plate having two orthogonal sides, one side of which is directly under a vehicle door. It is characterized in that the ladder is pivotally supported in parallel with the door, one end of the ladder is pivotally attached to the other side orthogonal to the one side, and the ladder is detachably supported to the vehicle body.

According to the present invention, when the tread plate is hung just below the door of the vehicle in parallel with the door and is in the storage position, the ladder pivotally attached to the other side of the tread plate has the left and right side plates. The ladder hangs up and down, and the ladder is stored along with the wall surface of the vehicle together with the footboard. At this time, by supporting the ladder on the vehicle body, there is no risk of wobbling or the like on the ladder at the storage position.

Further, when the support of the ladder with respect to the vehicle body is released, and the tread plate is rotated and flipped up in the horizontal direction,
The ladder attached to the other side of the tread is also flipped up in the horizontal direction along with the tread. By the way, since one end of the ladder is axially attached to the other side orthogonal to the one side of the tread axially attached to the door, after the tread and the ladder are horizontal, When the ladder is tilted, the ladder tilts along the wall surface of the vehicle body. Then, the horizontal tread and the ladder inclined from the tread along the wall surface of the vehicle body can form a hoistway extending in the direction along the door of the vehicle.

Further, in the vehicle ladder device according to the second aspect of the present invention, the tread plate is pivotally supported by a bracket fixed to the vehicle body, and the tread plate is hung downward from the vehicle body or horizontally. It is provided with a pin that fixes the body in a flipped up position. Therefore, according to the present invention, the tread plate can be fixed to the storage position that hangs down the vehicle body or the horizontal use position by the pin.

Further, in the vehicle ladder device according to the third aspect of the present invention, the tread plate is pivotally supported by a slide means which is attached to the underfloor of the vehicle body and slides in the horizontal direction, and the tread plate is moved downward in the vehicle body. It is characterized in that it can be fixed by rotating it from a hanging posture to a posture that it is flipped up in the horizontal direction and pushing a part thereof into the slide means. According to the present invention, the tread plate can be fixed in the horizontal direction by the sliding means.

Further, the ladder device for a vehicle according to a fourth aspect of the present invention has a fixing means for fixing the angle of the ladder with respect to the tread plate. Therefore, when in the storage position, both the tread and the ladder can be fixed in a suspended state along the wall surface of the vehicle. Further, when in the use position, the inclination angle of the ladder that inclines laterally of the vehicle body can be fixed with respect to the tread plate that is fixed in the horizontal direction.

Further, in the ladder device for a vehicle according to the fifth aspect of the present invention, the door is a door for an entrance / exit provided on a side surface of the vehicle. According to the present invention, it is possible to use the passenger entrance / exit as an emergency entrance / exit, and form a hoistway extending from the entrance / exit in the direction along the roadbed.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. Here, the same or corresponding portions as those of the conventional technique are designated by the same reference numerals, and detailed description thereof will be omitted.

FIG. 1 shows a state in which a vehicle ladder device 1 according to a first embodiment of the present invention is attached to a railway vehicle 2. The vehicle ladder device 1 can be installed so as to be located below a door 3 for getting on and off provided on a side surface of a vehicle body 2 of a railway vehicle. It should be noted that the vehicle ladder device 1 shown in FIG. 1 is in a "storage position" in which the ladder device 1 is stored along the side surface of the vehicle.

FIG. 2 is an enlarged view of the vehicle ladder device 1 in the storage position. This vehicle ladder device 1 is
It has a tread 4 and a ladder 7. Further, the tread 4 has two sides 4a and 4b which are orthogonal to each other. Then, the tread 4 has the vehicle body 2 so that the side 4a is parallel to the entry / exit door 3 of the vehicle.
It is pivotally supported by a pivot 6 with respect to the bracket 5 fixed to the. Further, one end portion 7 a of the ladder 7 is pivotally attached to the other side 4 b of the tread plate 4 via a hinge 8.
Further, the left and right side plates 7b, 7c of the ladder 7 can be detachably supported on the vehicle body 2 by the retainer 9 fixed to the vehicle body 2. The retainer 9 and the left and right side plates 7b and 7c of the ladder 7 are fastened by forming through holes at corresponding positions on the retainer protrusion 9a and the left and right side plates 7b and 7c of the ladder 7, and inserting the pin 10 into the through hole. Is to be inserted.

Next, a procedure for using the vehicle ladder 1 will be described with reference to FIGS. Here, in FIGS. 2 to 6, only a part of the vehicle body 2 related to the attachment of the vehicle ladder 1 is shown in cross section.

FIG. 3 shows a state in which the vehicle ladder device 1 is viewed from the front-rear direction of the vehicle body 2. The case where the vehicle ladder device 1 is in the retracted position (FIG. 2) is shown by a solid line, and other positions are shown. The case of is shown by a chain double-dashed line. As shown, the bracket 5 has two holes 5a (see FIG. 4) and 5b (see FIG. 3) equidistant from the pivot 6 that pivotally supports the tread 4.
And a hole 4c at the corresponding position of the tread 4 (see FIG. 3)
Is provided. Then, the hole 4c of the tread 4 and the bracket 5
By aligning the holes 5a with the holes 5a and inserting the pins 11 into the corresponding holes, the tread plate 4 can be fixed to the storage position that hangs down the vehicle body 2.

Further, the hole 5a of the bracket 5 and the tread 4
When the pin 11 is pulled out from the hole 4c, the tread plate 4 can be rotated in the horizontal direction about the pivot 6 as shown by the chain double-dashed line in FIG. Then, when the tread 4 is rotated until it becomes horizontal, the hole 4c of the tread 4 and the hole 5b of the bracket are aligned. Here, as shown in FIG. 4, the treadle 4 can be fixed to a horizontal use position by inserting the pin 11 extracted previously into the corresponding hole, as shown in FIG.

FIG. 5 shows a state in which the tread plate 4 in the retracted position (FIG. 2) hanging downward from the vehicle body 2 is rotated about the pivot 6 and moved to a horizontal use position. Seen from the same direction. At this time, the ladder 7 pivotally attached to the other side 4b of the tread 4 is also flipped up in the horizontal direction along with the tread 4.

After the tread plate 4 and the ladder 7 are leveled in this way, the ladder 7 is tilted with respect to the tread plate 4 by the hinge 8 (see FIG. 2), as shown in FIG. The end portion 7d that is inclined along the wall surface and is opposite to the one end portion 7a of the ladder 7 can be grounded to the roadbed GR. Therefore, the horizontal tread plate 4 and the ladder 7 inclined from the tread plate 4 along the wall surface of the vehicle body 2 can form a hoistway extending in the direction along the door 2 of the vehicle. A vehicular ladder device 1 of which a part is shown in FIG. 4 is the vehicular ladder device 1 in the use position of FIG. 6 viewed from the front and rear direction of the vehicle body 2.
In addition, when returning the vehicle ladder device 1 in the use position to the storage position, the above procedure may be performed in reverse, and thus detailed description thereof will be omitted.

The operational effects obtained by the first embodiment of the present invention having the above structure are as follows. In the first embodiment of the present invention, the tread plate 4 having two orthogonal sides 4a and 4b is pivoted with respect to the bracket 5 so that one side 4a is parallel to the door 3 directly below the vehicle door 3 for getting in and out of the vehicle. 6
Is pivoted through. In addition, one end 7a of the ladder 7 is attached to the hinge 8 on the other side 4b orthogonal to the side 4a of the tread 4.
Is pivoted by. Due to such a positional relationship of each part, when the tread plate 4 is in the retracted position along the wall surface of the vehicle body 2, the ladder 7 also hangs down so that the left and right side plates 7b and 7c are located vertically. Is stored along with the tread plate 4 along the wall surface of the vehicle. Moreover, in the storage position,
Since the ladder 7 is supported on the vehicle body 2 by the retainer 9,
At the storage position, there is no risk of wobbling or the like on the ladder 4.

Further, since the treads 4, the ladder 7, etc. constituting the vehicle ladder device 1 are all located outside the vehicle (below the door 3 for getting in and out), it is necessary to secure a space for installing the vehicle ladder device 1 inside the vehicle. Absent. Therefore, the vehicle ladder device 1 according to the first embodiment of the present invention is not restricted in the installation place by the in-vehicle layout, and is used for getting on and off the vehicle side portion as in the first embodiment of the present invention. It can be installed in various places such as below the door 3 or below the penetration door of the leading vehicle.

Further, the pin 10 for connecting the protruding piece 9a of the retainer 9 and the ladder 7 is removed, and the ladder 7 for the vehicle body 2 is removed.
After releasing the support, when the pin 11 is pulled out from the hole 5a of the bracket 5 and the hole 4c of the tread plate 4, it becomes possible to rotate the tread plate 4 around the pivot 6 in the horizontal direction. When the tread 4 is rotated and flipped up in the horizontal direction, the ladder 7 is also flipped up in the horizontal direction along with the tread 4.

Then, by inserting the pin 11 again into the hole 4c of the tread plate 4 and the hole 5b of the bracket which coincide with each other, the tread plate 4 can be fixed in a horizontal use position. Then, after the tread plate 4 and the ladder 7 are made horizontal, the ladder 7 is tilted with respect to the tread plate 4 by the hinge 8, so that the ladder 7 is tilted along the wall surface of the vehicle body. Therefore, the vehicle ladder device according to the first embodiment of the present invention includes the horizontal tread 4 and the tread 4
With the ladder 7 that inclines along the wall surface of the vehicle body 2, a hoistway extending in the direction along the door 3 for getting on / off can be formed. At this time, one end 7a of the ladder 7 is supported by the tread 4 via the hinge 8, and the end 7d on the opposite side of the ladder 7 is stably supported by being grounded to the track GR.

The first embodiment of the present invention having the above-mentioned structure can provide a ladder device having a simple structure and easy to operate. Moreover, in the vehicle ladder device 1 according to the first embodiment of the present invention, the occupant exits the vehicle through the door for opening / closing on the side surface of the vehicle body 2 and moves on the tread 4 in a direction parallel to the vehicle body 2. After changing the direction, it becomes possible to get off using the ladder 7, so that it is possible to secure a plurality of emergency boarding / alighting routes.

In the vehicular ladder device 1 according to the first embodiment of the present invention, the tread 4 comes out of the vehicle through a door for passengers to open and close on the side surface of the vehicle body 2, and then on the tread 4. It functions as a direction changing means for changing the direction to a direction parallel to the vehicle body 2. In order to ensure such a function, the tread 4 has two sides 4a and 4b which are orthogonal to each other, and the side 4a is pivotally supported on the vehicle body 2 so as to be parallel to the door 3 directly below the door 3 for getting in and out of the vehicle. And the ladder 7 may be pivotally attached to the other side. Therefore, the shape of the tread 4 is not limited to a quadrangle as in the illustrated example as long as it has two orthogonal sides 4a and 4b, and various shapes such as a triangle and a fan can be adopted. .

Further, if the length of one side 4a of the step board 4 is set to be equal to or larger than the opening width of the door 3 for getting in and out, the occupant takes the first step from the inside of the vehicle to the outside of the vehicle at any position of the opening width. Since it is possible to reliably step on the step board 4, the vehicle ladder device 1 can be made more convenient.

Next, a vehicle ladder device 21 according to a second embodiment of the present invention will be described with reference to FIGS. 7 to 9. The same parts as or the parts corresponding to those of the vehicle ladder device 1 according to the first embodiment of the present invention are designated by the same reference numerals, and detailed description thereof will be omitted.

In the vehicle ladder device 21 according to the second embodiment of the present invention, one side 4a of the tread 4 is pivotally attached to the slide member 23 of the slide means 22 via the pivot 6.
The slide means 22 supports a slide member 23 so as to be horizontally slidable by a guide case 24 attached below the floor of the vehicle body 2. And the slide member
The width (horizontal direction in the figure) and the thickness (vertical direction in the figure) of the 23 and the tread 4 are the same. Further, both ends of the guide case 24 are provided for slidably supporting the slide member 23,
It has a U-shaped cross section. The pivot 6 is the tread 4
And the slide member 23 are connected so that they can be aligned in a straight line.

In the slide means 22, the slide member 23
The pivot 6 is located outside the guide case 24 in the state where the pivot 6 is most protruded from the guide case 24. Then, the tread plate 4 is rotatably supported by the pivot member 6 with respect to the slide member 23, and the tread plate 4 hangs down below the vehicle body 2 by its own weight. When the tread plate 4 is aligned with the slide member 23, the slide member 23 and the tread plate 4 have the same width and the same thickness. It can be pushed into the guide case 24.

Although only shown in FIG. 7, the guide case 24
A fixing metal fitting 25 for stably fixing the tread 4 to the lower part of the vehicle body 2 is provided on the vehicle. The fixing bracket 25 has one end pivotally attached to the guide case 24 or the tread plate 4 and the other end detachable from the tread plate 4 or the guide case 24. Further, a fixing metal fitting 26 is provided as a fixing means for fixing the angle of the ladder 7 with respect to the step board 4. Similarly to the fixing metal fitting 25, the fixing metal fitting 26 has a base end portion pivotally attached to the step board 4 or the ladder 7, and the other end portion is detachable from the ladder 7 or the step board 4. Further, handles 27 and 28 are provided on the tread 4 and the ladder 7, respectively, to improve operability.

Here, a procedure for using the vehicle ladder 21 will be described with reference to FIGS. 7 to 9. First, in the vehicle ladder 21 at the storage position shown in FIG. 7, the ladder 7 is attached to the retainer 9
Then, the support of the ladder 7 with respect to the vehicle body 2 is released, and the fixing bracket 25 is removed from the tread 4. Then, it becomes possible to rotate the tread 4 in the horizontal direction about the pivot 6. Here, by holding the handles 27, 28, the tread 4 and the ladder 7 are rotated about the pivot 6 and flipped up in the horizontal direction.

Centering on the pivot shaft 6, the tread 4 and the ladder 7
Is rotated and the tread plate 4 is aligned with the slide member 23, a part of the tread plate 4 is pushed into the guide case 24 of the slide means 22. Then, since the tread plate 4 and the slide member 23 are both horizontally supported by the guide case 24 with the pivot 6 interposed therebetween, rotation of the tread plate 4 around the pivot 6 is prevented. Therefore, the tread 4 can be fixed in a state of being flipped up in the horizontal direction.

Further, holding the handle 28 fixed to the ladder 7, the fixing metal fitting 26 is removed from the tread 4 and the ladder 7. Then, the ladder 7 is tilted about the hinge 8 with respect to the tread 4. The ladder 7 inclines along the wall surface of the vehicle body 2, as shown in FIG. Here, the tread 4 and the ladder 7 are again connected by the fixing metal fittings 26 to fix the angle of the ladder 7 with respect to the tread 4. FIG. 9 shows a state in which the vehicle ladder device 21 in the use position is looked up from diagonally below the vehicle body 2. In addition, when returning the vehicle ladder device 21 in the use position to the storage position, the above procedure may be performed in reverse, and thus detailed description thereof will be omitted.

According to the second embodiment of the present invention having the above structure, the tread 4 can be firmly fixed in the horizontal direction. Further, the fixing metal fitting 26 can firmly fix the inclination angle of the ladder 7 which is inclined laterally of the vehicle body with respect to the tread plate 4 which is horizontally fixed. Therefore, FIG.
As in the first embodiment of the present invention shown in FIG. 7, it is possible to use the ladder 7 floating in the air as shown in FIG. 9 without grounding the end 7d of the ladder 7 to the roadbed GR. Further, when the fixing bracket 26 is in the storage position (FIG. 7), the tread plate 4 is
Both the and the ladder 7 can be fixed in a suspended state along the wall surface of the vehicle. Other details of the same effects as those of the first embodiment are omitted.

The shapes of the slide member 23 and the guide case 24 of the slide means 22 are merely examples.
23 may have a shape that can slide in the horizontal direction and can pivotally support the ladder 7 via the pivot 6, and for the guide case 24, the tread 4
It suffices to have a shape capable of engaging with and supporting horizontally. Further, the fixing brackets 25, 26 and the handles 27, 28 can also be used in the first embodiment of the present invention, and even in such a case, the same as in the second embodiment of the present invention. The effect can be obtained.

[0035]

As described above, the present invention has the following effects. First, according to the ladder device for a vehicle according to the first aspect of the present invention, it is possible to provide a ladder device having few restrictions on the installation place and having a simple structure.

Further, according to the vehicle ladder device of the second aspect of the present invention, it is possible to provide the vehicle ladder device which is simple in operation and structure. Further, claim 3 of the present invention
The vehicle ladder device according to the present invention also makes it possible to provide a vehicle ladder device that is simple in operation and structure.

Further, according to the vehicle ladder device of the fourth aspect of the present invention, it is possible to use the ladder device floating in the air without grounding the end of the ladder to the roadbed. According to the vehicle ladder device of the fifth aspect of the present invention, the passenger entrance / exit is also used as an entrance / exit in case of emergency, and the hoistway extending from the entrance / exit in the direction along the roadbed is provided. Therefore, it is possible to form a plurality of emergency boarding / alighting routes.

[Brief description of drawings]

FIG. 1 is a diagram showing a state in which a vehicle ladder device according to a first embodiment of the present invention is attached below a door for getting on and off a side surface of a railway vehicle.

FIG. 2 is a diagram showing a state in which the vehicle ladder device according to the first embodiment of the present invention is in a storage position.

3 is a view of the vehicle ladder device shown in FIG. 2 as viewed from the front-rear direction of the vehicle body.

FIG. 4 is a view of a part of the vehicle ladder device in a use position as seen from the front-rear direction of the vehicle body.

5 is a diagram showing a state where the tread plate of the vehicle ladder device shown in FIG. 2 is moved to a horizontal use position.

FIG. 6 is a diagram showing a state in which the vehicle ladder device according to the first embodiment of the present invention is in a use position.

FIG. 7 is a perspective view showing a state in which a vehicle ladder device according to a second embodiment of the present invention is in a storage position.

FIG. 8 is a perspective view showing a structure of a slide means of a vehicle ladder device according to a second embodiment of the invention.

FIG. 9 is a perspective view showing a state in which a vehicle ladder device according to a second embodiment of the present invention is in a use position.

[Explanation of symbols]

1 Vehicle ladder device 2 railway vehicles 3 Doors for getting on and off 4 treads 4a side 4b Other side 5 bracket 6 pivots 7 ladder 8 hinges 9 retainer 21 Vehicle ladder device 22 Slide means 23 Slide member 24 guide case 26 Fixing bracket

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B61D 23/02 B61D 23/00 B60R 3/02

Claims (5)

(57) [Claims] 1. A tread having two orthogonal sides is pivotally supported such that one side is parallel to the door directly below the door of a vehicle, and one end of the ladder is axially attached to the other side orthogonal to the one side. A ladder device for a vehicle, characterized in that the ladder device is worn and is detachably supported on a vehicle body. 2. The tread plate is pivotally supported by a bracket fixed to a vehicle body, and is provided with a pin for fixing the posture to hang downward of the vehicle body or the posture to flip up horizontally. The ladder device for a vehicle according to claim 1. 3. The tread plate is pivotally supported by a sliding means that is attached to the floor of the vehicle body and slides in the horizontal direction, and the tread plate is hung from the downward position of the vehicle body to the horizontal position. 2. The ladder device for a vehicle according to claim 1, wherein the ladder device can be fixed by being rotated to a part and pushed into the slide means. 4. The vehicle ladder device according to claim 1, further comprising fixing means for fixing an angle of the ladder with respect to the tread plate. 5. The ladder device for a vehicle according to claim 1, wherein the door is a door for an entrance / exit provided on a side surface of the vehicle.