JPH1044990A - Fall preventive device of vehicle connection surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the gap between an oscillation arm and a platform from being increased by providing a spring to urge a base end of the oscillation arm in the direction of an edge corner part and an expandable film to be stretched between a tip of the oscillation arm and a part in the vicinity of the corner part. SOLUTION: A roller 17 is rotatably mounted on a base end of an oscillation arm 16. The base end of the oscillation arm 16 is movable along a vehicle connection surface 1. A spring 18 in the compressed condition is mounted on a center side of the vehicle connection surface 1 of a guide rail 15, and the base end of the oscillation arm 16 is urged in the direction of an edge corner part 6. A tip of a turning arm is pivotably attached by a pin 20 approximately to a center of the length of the oscillation arm 16. A longitudinal frame 23 is fixed to a side a vehicle side surface 5 of a bracket 21. A longitudinal frame 24 is also fixed to a tip of the oscillation arm 16 extending to the position close the extension surface of the vehicle side surface 5. An expandable film 25 of bellows shape is stretched between the longitudinal frame 23 and the longitudinal frame 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing a passenger from falling off a platform in a space between connecting portions of a railway vehicle or the like and preventing the passenger from falling off the platform.

[0002]

2. Description of the Related Art In a connecting portion such as a railway vehicle, a space is provided between adjacent vehicles. 2. Description of the Related Art A fall prevention device for a vehicle connection surface that prevents a passenger from falling off a platform in this space has been conventionally used.

FIG. 6 is a plan view showing an example of a conventional device for preventing a vehicle connecting surface from falling down. A coupling device is provided at the center of a vehicle connecting surface 1 of an adjacently connected vehicle. 2. A crossover plate 3 and a connecting hood 4 are attached, and an elastic film is formed from the vehicle connecting surface 1 near a corner 6 where the vehicle connecting surface 1 and the vehicle side surface 5 intersect in a direction in which the vehicle side surface 5 extends. The buffer 7 is extended so as to prevent passengers from falling off the platform 8 between the vehicle connecting surfaces 1 and 1.

FIG. 7 is a plan view showing another example of a conventional device for preventing a vehicle connecting surface from falling down, and shows a vehicle near a corner 6 where a vehicle connecting surface 1 and a vehicle side surface 5 intersect. A bellows-like stretchable top film 9 is attached from the connecting surface 1 in the direction of extension of the vehicle side surface 5, and the tip of a swing arm 11 is pivotally attached to a tip metal fitting 10 of the top film 9 with a pin 12 to swing. Arm 1
The base end of the vehicle 1 is pivotally connected to the vehicle connecting surface 1 at a position slightly away from the corner 6 of the vehicle by a pin 13. The tip of the swing arm 11 is connected to the vehicle connecting surface 1 by an elastic body such as a spring 14.
The swing arm 11 is biased in a direction away from the vehicle so that the tip fittings 10, 10 of the top membranes 9, 9 of the adjacent vehicles always contact each other, so that passengers can get from the platform 8 to the vehicle connecting surface 1, 1 to prevent falling.

[0005]

The conventional device shown in FIG. 6 has no problem when the distance between the vehicle connecting surfaces 1 and 1 is small, but when the distance between the vehicle connecting surfaces 1 and 1 is wide. If it is outside the curved track, a gap is created between the tips of the adjacent shock absorbers 7 and 7, and the mating surface of the connecting hood 4 also moves to the center of the vehicle, so the distance from the platform becomes large. The danger of falling is also great.

[0006] The conventional device shown in FIG.
1 is a vehicle connecting surface 1 at a position slightly away from a corner 6 of the vehicle
When the distance between the vehicle connection surfaces 1 and 1 is increased outside the curved track as shown in FIG. Displaced in the direction of the center of the surface 1, the tip fitting 10 of the top film 9 is separated from the platform 8, and the distance between the platform 8 and the platform 8 is increased.

[0007] The present invention solves such a problem, and even if the tips of the adjacent top membranes are always in close contact with each other and are outside the curved track, regardless of the distance between the vehicle connection surfaces, the home and the top are not necessarily connected to each other. It is an object of the present invention to provide a device for preventing a vehicle connecting surface from falling down so that the distance between the vehicles does not increase.

[0008]

According to the present invention, there is provided a swing arm having a base end movably supported along a vehicle connecting surface and a front end located near an extension of a vehicle side surface, a vehicle side surface and a vehicle connecting surface. A pivot arm having a base end pivotally connected to a vehicle connection surface near a corner of the swing arm and a tip pivotally mounted at substantially the center in the longitudinal direction of the swing arm; A spring for urging in the direction of the swing arm, and an extendable hood film stretched between the tip of the swing arm and the vicinity of the corner. In such a case, the top films of adjacent vehicles are always in close contact with each other, and when the distance between the vehicle connecting surfaces is widened, the base end of the swing arm moves in the direction of the corner, and the swing arm Is located on an extension of the side of the vehicle, and the distance from the platform does not increase.

Further, by providing a holding arm having one end pivotally connected between the center and the tip of the swing arm in the longitudinal direction and the other end attached to an intermediate portion of the hood film, a person can erroneously operate the hood. Even when leaning on the membrane, the top membrane does not bend or the top membranes of adjacent vehicles do not separate.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a rear view seen from II-II in FIG. 1, and FIG. 3 is a perspective view seen from the upper left of FIG. A horizontal guide rail 1 is provided at two positions vertically from a corner 6 where the vehicle connecting surface 1 intersects the vehicle side surface 5 toward the center of the vehicle connecting surface 1.
5 is fixed.

Reference numeral 16 denotes a swing arm provided at the same height as the guide rail 15 and provided in two upper and lower stages. A roller 17 (see FIGS. 1 and 2) is rotatably provided at the base end of the swing arm 16. The swing arm 16 is attached and moves while rotating inside the guide rail 15, so that the base end of the swing arm 16 can be moved along the vehicle connection surface 1.

A spring 18 in a compressed state is mounted on the center of the vehicle connecting surface 1 of the guide rail 15 so as to urge the base end of the swing arm 16 toward the corner 6. Has become.

The tip of the swing arm 16 extends to a position near the extension surface of the vehicle side surface 5, and the tip of a revolving arm 19 is pivotally attached to the center of the length of the swing arm 16 by a pin 20. I have.

The length of the swing arm 19 is
The base end of the swing arm 19 is fixed to the vicinity of the corner 6 of the vehicle connecting surface 1 (see FIGS. 1 and 2). reference)
Are pivotally connected by pins 22.

A vertical frame member 23 is fixed to a side of the vehicle side surface 5 of the bracket 21 fixed to the vicinity of the corner 6, and extends to a position close to the extension surface of the vehicle side surface 5 described above. A vertical frame member 24 is also attached to the tip of the moving arm 16, and a bellows-like stretchable hood 25 is stretched between the vertical frame members 23 and 24.

In the above-described apparatus, the state of the swing arm 16 and the turning arm 19 when the roller 17 is located at a substantially intermediate position in the length direction of the guide rail 15 is as follows.
FIG. 4 shows the state when the roller 17 is guided by the guide rail 15 and moves along the vehicle connecting surface 1 by a solid line.
The same broken line is shown in FIG.

When the swing arm 16 moves from the position indicated by the solid line to the position indicated by the dashed line, the position of the pin 20 substantially at the center of the swing arm 16 also changes. And the pin 20
Moves on an arc 26 centered on the pin 22 and having a radius equal to the length of the swing arm 19.

As described above, since the length of the swing arm 19 is substantially half the length of the swing arm 16, the swing arm 19, the swing arm 16, and the vehicle connection surface 1 define the swing arm 19. The formed triangle is always substantially an isosceles triangle even if the positions of the swing arm 19 and the swing arm 16 change. Also, the triangle formed by the swing arm 19, the swing arm 16 and the top 25 is always an isosceles triangle.

Therefore, when the swing arm 16 moves, the vertical frame member 24 fixed to the tip of the swing arm 16 is moved.
Moves in a direction perpendicular to the vehicle connection surface 1, that is, in a direction parallel to the extension surface of the vehicle side surface 5, and the top film 25 moves while constantly expanding and contracting while maintaining a state parallel to the extension surface of the vehicle side surface 5, The vertical frame member 24 will not be displaced outward or inward of the vehicle.

When the vehicles provided with such a vehicle connecting surface fall prevention device are connected to each other, a spring 18 urges the base end of the swing arm 16 toward the corner 6 as shown in FIG. Therefore, the tip of the swing arm 16 is urged to be displaced toward the adjacent vehicle, and the vertical frame members 24 attached to the tip of the swing arm 16 of the adjacent vehicle come into close contact with each other. The top film 25 of the vehicle covers the connecting portion of the vehicle without any gap.

When the distance between the vehicles changes upon approaching the curved track, the swing arm 16 is displaced as shown by the broken line in FIG.
4 is not displaced in the direction of the center of the vehicle connection surface 1, and the vertical frame member 24 is also displaced inside the curved track.
And does not protrude outside the extension of the vehicle side surface 5 away from the center of the vehicle.

In an emergency, when the railroad staff must push open the close vertical frame members 24 and 24 to enter between the vehicle connecting surfaces 1 and 1, push the vertical frame members 24 and 24. When the spring 18 is expanded, the biasing force of the spring 18 increases, but since the angle θ (see FIG. 5) between the swing arm 16 and the vehicle connecting surface 1 decreases, the biasing force of the spring 18 in the direction of the vehicle side surface 5 is reduced. The component force is reduced and the vertical frame members 24, 24
Can be pushed open to enter between the vehicle connecting surfaces 1, 1.

The pin 2 substantially at the center of the length of the swing arm 16
One end of one or a plurality of holding arms 27 is pivotally connected by pins 28 between the position where the “0” is provided and the tip of the swing arm 16 as shown in FIGS.

The holding arm 27 is arranged substantially parallel to the turning arm 19, and the other end of the holding arm 27 is pivoted to the rear side of the intermediate portion of the top cover 25 by a pin 29 and a mounting bracket 30 (see FIG. 1). Is being worn. The length of the holding arm 27 is approximately equal to the distance from the tip of the swing arm 16 to the pin 28, and when the swing arm 16 moves as shown by the broken line in FIG. Does not hinder expansion and contraction while maintaining a state parallel to the extended surface of the vehicle side surface 5.

As described above, when the holding arm 27 is provided between the tip end side of the swing arm 16 from the center and the intermediate portion of the top film 25, when the person leans on the top film 25, the top film 25 becomes home. And the force applied to the top film 25 acts to displace the tip of the swing arm 16 via the holding arm 27 in the direction away from the vehicle connecting surface 1, and the vertical frame member 24, 24 came to be more closely attached,
There is no gap, and safety is maintained.

In the illustrated embodiment, the spring 18
Although a coil spring in a compressed state is used, a tension spring may be provided on the roller 17 on the side opposite to that shown in the figure, or a gas spring may be used.

Further, if the space between the upper and lower guide rails 15, the swing arm 16, the swing arm 19, and the holding arm 27 provided in the upper and lower stages is widened so that an empty space is formed in the middle, the vehicle connection surface can be formed. 1 can be equipped with a fire extinguisher and other necessary equipment.

[0029]

According to the first and second aspects of the present invention, since the top membrane constantly expands and contracts while maintaining a state parallel to the extended surface of the vehicle side, the top membrane is displaced inward of the vehicle to be connected to the platform. There is no danger of people falling due to the gap between them, and the top membrane does not protrude outside the vehicle and protrude from the vehicle limit.

In the event of an emergency, the top membrane can be released without any great difficulty to enter the space between the vehicle connecting surfaces.

Further, even if a person accidentally leans on the top film, the top film does not bend in the direction away from the platform, and the close contact force between the close top films is improved. Since the hood is intense and does not separate from the close-up hood, there is an effect that the fall of the person can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of an embodiment of the present invention.

FIG. 2 is a rear view as viewed from II-II in FIG. 1;

FIG. 3 is a perspective view seen from the upper left of FIG. 1;

FIG. 4 is an operation explanatory view of the present invention.

FIG. 5 is a plan view showing a use state of an example of an embodiment of the present invention.

FIG. 6 is a plan view showing an example of a conventional device.

FIG. 7 is a plan view showing another example of the conventional device.

FIG. 8 is a plan view showing an operation state of the device of FIG. 7;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vehicle connection surface 5 Vehicle side surface 6 Corner 16 Swing arm 18 Spring 19 Swivel arm 25 Top membrane 27 Holding arm

Claims (2)

[Claims] 1. A swing arm having a base end movably supported along a vehicle connection surface and a front end located near an extension surface of a vehicle side surface, and a vehicle connection near a corner between the vehicle side surface and the vehicle connection surface. A swing arm having a base end pivotally attached to a surface and a tip pivotally mounted substantially at the center in the longitudinal direction of the swing arm; and a spring for biasing the base end of the swing arm in the direction of the corner. An extendable hood covering between the tip of the swing arm and the vicinity of the corner, and a fall prevention device for a vehicle connecting surface. 2. A holding arm having one end pivotally connected between a center and a tip of the swing arm in the longitudinal direction and the other end attached to an intermediate portion of the top membrane. The fall prevention device for a vehicle connection surface according to claim 1.