JPH10310052A - Fall preventive device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely prevent falling of a passenger from a platform to a coupling part space in simple and inexpensive constitution. SOLUTION: A bracket 3 is fixed on a wainscot panel 35 close to a coupling part opening in a vehicle 31. One end 4a of a plate spring 4 in a U form opened toward a side wall 36 of the vehicle 31 is fixed to the bracket 3. A push plate 5 is fixed to the other end 4b of the plate spring 4, and an outer bellows 7 is provided between the push plate 5 and the wainscot panel 35. A center part 7b of this outer bellows 7 is supported by an outer bellows support 6 pivotally supported on the bracket 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle having a pair of rails provided on both outer sides of a connecting portion of a front and rear wall of a railroad vehicle. The present invention relates to a fall prevention device for preventing a fall in a space of a connecting portion of the vehicle.

[0002]

2. Description of the Related Art There have been many accidents in which a passenger on a platform accidentally falls into a space at a connection portion of a stopped train. This accident is not limited to being pushed by people on a crowded platform during a rush hour, but is also caused by a visually impaired person or a drunk person misunderstanding the connection space as an opening of a vehicle entrance door. Therefore, the applicant has
In order to prevent such a fall accident, a fall prevention device as shown in FIGS. 3 and 4 has recently been proposed (JP-A-8-2824).
No. 92). The fall prevention devices 21a and 21b are shown in FIG.
As shown in the front view of FIG.
3 is provided symmetrically on the left and right waist plates 35 of the connecting portion opening 34, as shown in the plan view of FIG. 3A and the side view of FIG. Cooperate so as to close the space between the pair of vehicles 21a and 21b provided in the vehicle and the vehicle connecting portion, thereby preventing a passenger from falling from the platform into this space.

[0003] The fall prevention device 21a of the left-hand specification is shown in FIG.
As shown in FIG. 7, the door closer 24, in which the drive shaft 25 is urged in the normal rotation direction A by the built-in spring and whose rapid rotation is suppressed by the hydraulic oil, is moved through the base plate 22 by the bolts 23 with the bolt 23.
5 and a push plate 28 abutting against an opposing push plate is vertically attached to a distal end 27b of a horizontal arm 27 having a proximal end 27a fixed to the drive shaft 25, and three base supports 29 29a is pivotally attached to the arm 27 at intervals, and one end 30a, the other end 30c, and the intermediate portion 30b of the belt 30 having a length equal to or more than half the distance between the vehicle connecting surfaces are respectively connected to the outer edge 28a of the push plate, the base plate, Outer edge 22a, belt support 2
9 is fixed to the tip 29b. Thus, the left and right hand fall prevention devices 21a and 21b of the connecting portion are configured such that the opposing push plate 28 is pressed by the urging of the arm 27 in the direction of arrow A in FIG.
As shown in (A), the belt 30 closes the connection space. Even when the vehicle enters a curve and the distance between the connecting surfaces extends and contracts outside and inside the curve, the opening and closing movement of the arm 27 accompanying the expansion and contraction of the spring of the door closer 24 causes
Since the pressing plate 28 is always in contact with the belt 30,
The connection space is closed to prevent passengers from falling into this space.

[0004]

However, in the above-mentioned conventional fall prevention device, the pushing plate 28 with the belt 30 is brought into contact with each other via the arm 27 by the urging force of the door closer 24 containing a spring and a hydraulic oil circuit. Therefore, there is a problem that the number of parts increases, the structure becomes complicated, assembly and maintenance are troublesome, and the apparatus becomes expensive.

Therefore, an object of the present invention is to reduce the number of parts, simplify the structure, and save time and labor for assembly and maintenance.
An object of the present invention is to provide a fall prevention device that can be manufactured and mounted at low cost.

[0006]

To achieve the above object, a first aspect of the present invention is a fall prevention device for preventing a passenger from falling from a platform to a space of a connecting portion of a vehicle, the device comprising: It is an open U-shape, one end of which is directly or indirectly fixed to the waistboard near the opening of the connection portion of the vehicle, and the base end is fixed to the other end of this leaf spring and extends horizontally, A push plate extending vertically in the vicinity of the center between the vehicle connecting surfaces, an outer hood having one end attached to the tip of the push plate and the other end attached to the outer edge of the waist plate, respectively. .

In the fall prevention device of the first aspect, one end of a leaf spring is fixed directly or indirectly to the waistboards on both sides near the connection portion opening on two opposing wall surfaces of the connection portion of the vehicle,
The base end of a horizontally extending push plate is fixed to the other end of the leaf spring opened in the U-shape in the side wall direction, and the proximal end of the vertically extending push plate is fixed between the distal end of the vertically extending push plate and the outer edge of the waist plate. A hood is attached. Therefore, the push plate is urged in the opening direction away from the wall surface and toward the connection portion opening by the leaf spring, so that the vertically extending tip of the push plate is similarly attached to the bracket of the opposing vehicle via the leaf spring. And presses against the vertical tip of the pressing plate fixed at approximately the center of the distance between the connecting surfaces. One end and the other end of the outer hood are attached to the tip of the push plate and the outer edge of the waist plate, respectively. Therefore,
The connection space is completely covered on both sides of the vehicle by outer hoods connected to a pair of push plates abutting each other on both sides of the connection opening, so that the connection space of the stopped vehicle is on the platform. Passengers are prevented from falling.
When the vehicle enters a curved road (curve), the distance between the connecting surfaces shrinks inside the curve and expands outside the curve, but a pair of push plates abutting the inside of the curve are affected by the force of the U-shaped leaf spring. While the force is stored in the leaf spring by turning in the closing direction, a pair of push plates on the outside of the abutting curve remain open in the opening direction due to the biasing force of the leaf spring, and most of the connection space is removed. Since it is covered by a hood, passengers are prevented from falling in any state.

[0008] In the fall prevention device of the second aspect, a bracket fixed to the waistboard near the opening of the connecting portion of the vehicle is horizontally protruded with one end pivotally mounted, and the other end is attached to the intermediate portion of the outer hood. The outer hood support is provided. The outer hood support pivotally supports a middle portion of the outer hood, which expands and contracts with the opening and closing of the push plate, to a bracket so as to be pivotable. Therefore, even when the push plate is closed, the outer hood is prevented from protruding outward by the outer hood support, and even if the leaf spring breaks, the leaf spring or the push plate separated from the bracket is It is supported by the bracket via the outer hood support, and does not fall down and is excellent in safety.
Further, even when the passenger leans on the outer hood from the outside, this is supported by the outer hood support, so that the passenger can be more reliably prevented from falling into the connection space.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. FIG. 1 is a perspective view showing an example of the fall prevention device of the present invention. Similar to the conventional example shown in FIG. 3, a pair of connecting portions are provided symmetrically with the left and right waist plates 35 of the opposite end plates 33, 33, respectively. , A total of four fall prevention devices are provided, and FIG. 1 shows one of the right-hand units 1b. 2 (A) and 2 (B) are a plan view and a front view of the fall prevention device 1b.

The above-mentioned fall prevention device 1b comprises a pair of brackets 3 fixed by bolts 9 (see FIG. 2) above and below a waist plate 35 near a joint opening 34 (see FIG. 3C) of the vehicle 31; 31 has a U-shape opened toward the side wall 36, and one end 4
a is a pair of leaf springs 4 fixed to the bracket 3 by bolts 10; base ends 5a, 5a are fixed to the other end 4b of the leaf spring 4 by bolts 11 to extend horizontally; A push plate 5 made of a U-shaped steel plate extending vertically at substantially the center between the surfaces, and an outer top made of a U-shaped pipe protruding outward with one end 6a, 6a pivotally attached to the bracket 3 Support 6
And one end 7a is at the tip 5b of the push plate 5, the other end 7c is at the outer edge member 8 of the waist plate 35, and the intermediate portion 7b is at Above hood support 6
And outer hoods 7 attached to the other vertical ends 6b.

The above-mentioned leaf springs 4, 4 are located at a position F in FIG. 2A in which the push plate 5 at the other end 4b makes approximately 30 ° with the waist plate 35 in a free state without restraint. The push plate 5 is pressed by the wire 12 stretched between the tip 5b of the push plate 5 and the outer edge member 8 of the waist plate 35 so as to apply a biasing force to the waist plate 35.
And the tip 5b of the push plate is separated by about 5 mm from the tip 5b of the push plate at the same position N of the fall prevention device of the oncoming vehicle on a straight road. On the other hand, the pressing plate 5 can be maximally compressed to the position C in FIG. Further, the wire 12 prevents the urging force of the leaf spring 4 in the opening direction of the push plate 5 from being applied to the outer top 7 and extends the life of the outer top 7. A waterproof canvas is used for the outer hood 7 so as not to injure passengers even if their hands are caught. The outer hood 7 is wrapped around the outer periphery of the vertical other end 6b of the outer hood support 6, and the outer mating edge is sewn. ing. The above-mentioned fall prevention devices 1a and 1b are designed so that as the vehicle passes through various curves of the route, the relative displacement of the opposite end plate 33 of the connecting portion always falls within the vehicle design limit. The shape, size and mounting position do not interfere with facilities around the route.

The fall prevention devices 1a and 1b configured as described above operate as follows. When the vehicles 31 and 32 (see FIG. 3) are on a straight road, two anti-fall devices 1a and 1b are provided on both sides of the connecting portion so as to face each other.
(See FIG. 3A). As shown in FIGS. 1 and 2, the right-hand device 1 b separates a push plate 5 having one end fixed to brackets 3 on the vehicle center side via U-shaped leaf springs 4, as shown in FIGS. In the opening direction toward the opponent vehicle, the wire 12 is urged to a position N where the wire 12 is tensioned. On the other hand, the left-handed device 1a of the opposing vehicle is also urged to the same position N by the push plate. There is only a gap of about 5 mm between the front ends 5a, 5a. The outer cover 7 is connected to the outer edge 8 of the waist plate 35 behind the two push plates 5. Therefore, the connection space is
The pair of push plates 5 and the outer top 7 that are extremely close to each other substantially completely cover the positions on both sides of the vehicle, thereby preventing the passenger on the platform from falling into the connection space.

Further, since the intermediate portion 7b of the outer hood 7 is supported by the brackets 3, 3 by the swingable outer hood support 6, the push plate 5 is positioned at the position C, for example, inside the curve.
Even when the door is closed in the direction, the outer hood 7 is prevented from protruding, and when the passenger leans on the outer hood 7 from the outside, the outer hood support 6 supports this, so that the fall of the passenger is more reliable. Can be prevented. Also, in the event that the leaf springs 3, 3 are broken due to cracking or fatigue, the leaf spring 3 and the push plate 5 separated from the vehicle side are supported by the bracket 3 via the outer top 7 and the outer top support 6. Because it does not fall, it is excellent in safety. When the length of the outer hood 7 is short, the outer hood support 6 can be omitted. However, it has been found that the structure of the outer hood support 6 can minimize the influence of device deformation when passing a train or passing through a roller brush in a washing line due to its structure. When a vehicle enters a curved road (curve),
The distance between the connecting surfaces shrinks inside the curve and extends outside the curve. At this time, the pair of push plates 5 on the inside of the curve rotate while compressing and contracting the respective leaf springs 4 in the closing direction after contacting each other, so that the force is stored in the leaf springs 4 and the pair of push plates 5 on the outside of the curve. The push plate 5 is prevented from opening and turning by the tensioned wire 12, and the gap between the tips 5a, 5a of both push plates is widened. However, since the expansion of the gap is slight even in a sharp curve, it is possible to prevent the passenger from falling into the connection space as in the case of a straight road.

As described above, according to the present invention including the above embodiment, the conventional arm 27 for rotating the push plate (see FIG. 4).
Only the U-shaped leaf spring 4 is used in place of the door closer 24 for turning and turning, so that the number of parts is reduced while the passenger is prevented from falling into the connection space, and the structure is simplified, The assembly and maintenance can be facilitated, and the manufacturing cost can be reduced. Fall prevention device 1a, 1 of the present invention
In b, since only the tip of the push plate 5 abuts on the inside of the curve, there is no possibility that the paint may be damaged by rubbing or contacting the vehicle wall. Further, in the fall prevention devices 1a and 1b, since the bracket 3 is fixed in the vicinity of the opening of the connecting portion remote from the side wall 36, the push plate 5 opens and closes with a large turning radius, so that the outer cover can be provided outside the sharp curve. This can cover a wider connection space, and thus has the advantage that passengers are less likely to fall into the connection space.

If the outer edge member 8 of the above embodiment is provided with a locking member for locking the front end 5b of the push plate fully closed to the position C, the fall prevention device for the first and last vehicles is obstructed. It can be put away without getting in the way, and it is advantageous during vehicle inspection. Furthermore, the bracket and the leaf spring of the present invention
One or three or more may be different from the pair of upper and lower members, and the shape of the pressing plate is not limited to the U-shape, and the leaf spring may be provided in the vicinity of the connecting portion opening of the vehicle without using the bracket. It can also be fixed directly to the hip plate. Further, the outer hood support 6 and the wire 12 can be omitted due to space or the like.

[0016]

As is apparent from the above description, the fall prevention device according to the first aspect of the present invention is provided in a pair on both outer sides of the connecting portion opening of the front and rear walls of the railway vehicle, and is provided on the vehicle to be connected. The other end cooperates with a pair provided in the same manner and directly or indirectly fixes one end of a leaf spring to a waist plate near the opening of the connecting portion, and opens in a U-shape in the side wall direction of the leaf spring. The push plate has a horizontally extending base end fixed thereto, and one end of an outer hood is attached to a vertically extending tip located near the center between the vehicle connecting surfaces of the push plate, and the other end of the outer hood is attached to the waist plate. It is attached to the outer edge of the vehicle, so it has a simple and inexpensive structure consisting of the urging force of the leaf spring, the push plate and the outer hood. To ensure that passengers do not fall from the platform to the connection space It can be.

Further, in the fall prevention device according to the present invention, one end of the outer hood support is horizontally pivotally supported on a bracket fixed to a waistboard near the connection portion opening of the vehicle, and the outer hood support is provided. The other end of the outer top is attached to the middle part of the outer top, so that when the push plate is closed, the outer top is prevented from protruding outward, and even if the leaf spring is broken, The board is excellent in safety without falling, supports leaning of the passenger, and can more reliably prevent the board from falling into the connection space.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one right-handed one which is an example of a fall prevention device of the present invention.

FIG. 2 is a plan view and a front view of the fall prevention device.

FIG. 3 is a plan view, a side view, and a front view of a connecting portion of a railway vehicle equipped with a conventional fall prevention device.

FIG. 4 is a plan view of the conventional left-hand fall prevention device.

[Explanation of symbols]

1b: Fall prevention device, 3: Bracket, 4: Leaf spring, 5
... push plate, 6 ... outer hood support, 7 ... outer hood, 8 ... outer edge material, 3
1 ... vehicle, 33 ... wife board, 35 ... waistboard, 36 ... side wall.

Continued on the front page (72) Inventor Yoshitaka Tatebe 2-4-1-14 Tokui-cho, Chuo-ku, Osaka-shi, Osaka Inside Daihatsu Diesel Co., Ltd. (72) Eiichi Mikami 2--4 Tokui-cho, Chuo-ku, Osaka-shi, Osaka No. 14 Daihatsu Diesel Co., Ltd. (72) Inventor Shunji Takami 1-1-16 Shibata, Kita-ku, Osaka City, Osaka Prefecture Advantech Co., Ltd.

Claims (2)

[Claims] 1. A fall prevention device for preventing a passenger from falling from a platform to a space of a connecting portion of a vehicle, wherein the device has a U-shape opened toward a side wall of the vehicle, and has one end near an opening of the connecting portion of the vehicle. A leaf spring fixed directly or indirectly to the waist plate, a push plate having a proximal end fixed to the other end of the leaf spring, extending horizontally, and a distal end extending vertically near the center between the vehicle connecting surfaces; A fall prevention device comprising: a top end of the push plate; and outer hoods each having the other end attached to an outer edge of the waist plate. 2. A bracket fixed to a waistboard in the vicinity of an opening of a connection portion of the vehicle, horizontally protruding at one end thereof,
The fall prevention device according to claim 1, further comprising an outer hood support having the other end attached to an intermediate portion of the outer hood.