JP3583053B2 - Fall prevention device for railway vehicle joints - Google Patents

Description

[0001]
[Industrial applications]
The present invention relates to a protective device (a so-called railroad vehicle connecting portion) provided on both the left and right sides of the wagon surface of a railroad vehicle in order to prevent a person from falling from the platform to a space of the railroad vehicle connecting portion (space between wives). The present invention relates to a fall prevention device having an elastic barrier attached to a wife surface by a vertical hinge pin, in particular, which simplifies the mechanism of the device and allows a worker to enter a space of a railcar connecting portion. With regard to work such as maintenance of the connecting portion, it is possible to easily release the elastic barrier to the outside of the worker in and out of the space, thereby facilitating access to the space.
[0002]
[Prior art]
It is well known that a fall prevention device is provided on both the left and right sides of the connecting portion of a railway vehicle (left and right sides of a wife's face). A typical example of the mechanism and structure of the fall prevention device is a bellows-shaped hood. However, recently, those shown in FIG. 1 are common. The conventional device shown in FIG. 1 has an advantage that the mechanism is extremely simple and no special maintenance is required.
In the prior art shown in FIG. 1, vertically long elastic barriers (in this case, outer hoods made of hollow elastic members) G are fixedly protruded on the right and left sides of the rear side of the vehicle. . When the vehicle is on a straight line, the pair of opposing elastic barriers G, G are in the same plane, and when the connecting portion is largely bent, the elastic barriers G, G interfere with each other (colliding and rubbing each other). ), There is a relatively narrow gap between the ends of the elastic barrier material. However, traveling large (having a small radius of curvature) line on the curvature, the connecting portion is large bends, one of the elastic barrier G on the left and right sides of the vehicle, the elastic barrier material G will interfere (Fig. 1 (State of broken line in (c)). Various measures have been devised for the elastic barrier G in such a structure, and one example thereof is described in JP-A-8-169335. The elastic barrier material of the elastic barrier G is required to be strong enough to support a person who has fallen down on the elastic barrier G, but is required to have a required elasticity in order to reduce impact and damage at the time of interference. Further, the gap between the elastic barrier materials G of the two elastic barriers G, G (for example, the gap S in FIG. 2) is preferably narrow in order to prevent a falling person from falling down from this gap. On the other hand, in order to reduce mutual interference when the vehicle connecting portion is bent, it is desirable that the gap S be as wide as possible. For this reason, the gap S between the ends of the elastic barrier materials of the elastic barriers G, G is not large enough to allow a human to pass through, and is not flexible enough to be pushed away while elastically deforming the human to pass through. Absent.
[0003]
For this reason, when entering or leaving the space between the wives, the worker goes under the elastic barriers G and G and enters and exits the space. In order to avoid such inconvenience, elastic barriers G, G are attached to the vehicle rear surface via a hinge device, and are usually held in a closed position (a position substantially perpendicular to the vehicle rear surface), and when necessary, An elastic barrier G is rotated to an open position (a position protruding outward substantially parallel to the wife's surface) is known (Japanese Patent Application Laid-Open No. 2000-1165). As shown in FIG. 2, this is formed by connecting a mounting metal 21 having an L-shaped cross section fixed to a wife surface D of a vehicle and a bracket 22 having an L-shaped cross section fixed to an elastic barrier G with a vertical hinge pin 23. Yes, the bracket 22 is urged downward with respect to the mounting metal 21 by an urging means by an elastic spring to mechanically lock and hold the elastic barrier G at the closed position, thereby resisting the urging force of the urging means. Then, the bracket 22 is pushed up to release the lock and then can be turned to the open position. The elastic barrier material of the elastic barrier G according to the prior art is formed by injection molding, and the metal fitting 24 is embedded at the time of injection molding, and the bracket 22 is fixed to the metal fitting 24 by screwing (hereinafter, referred to as “metal”). This is referred to as “prior art”).
Since the hinge mechanism by the hinge pin 23 is normally locked, the elastic barrier G is in a fixed state. For this reason, in order to reduce the mutual interference between the elastic barriers G, G when the connecting portion is bent, the directions of the left and right elastic barriers G, G are slightly shifted inward and outward. However, in reality, mutual interference of the elastic barriers is unavoidable. To reduce damage to the elastic barriers due to the mutual interference, the elastic barriers are made of a material having a certain degree of elasticity and excellent wear resistance. Need to be created.
[0004]
[Problem to be solved]
By the way, in the above-mentioned prior art, the hinge mechanism for attaching the elastic barrier G to the vehicular surface of the vehicle so as to be rotatable in the opening and closing direction locks and unlocks the hinge by raising and lowering the elastic barrier G. However, since the lock operation is performed by lifting the elastic barrier G, there is a problem that the unlock operation for opening the elastic barrier G is not easy.
Even if the elastic barrier material is elastically deformed to some extent to reduce damage due to mutual interference, it must have the required rigidity and strength because it is a fall prevention wall, and the elastic barrier is fixed in the closed position Therefore, there is a problem that damage due to mutual interference is inevitable.
Furthermore, since the bracket for attaching the hinge constituting the hinge to the elastic barrier material is embedded in the elastic barrier material, its structure is not simple, and the elastic barrier material is not only injection-molded, but also its material. Is limited, and the range of selection is narrow, so that inexpensive materials cannot be used.
For this reason, there is a problem in that the manufacturing cost of the prior art fall prevention device for a railway vehicle connecting portion is not inexpensive.
SUMMARY OF THE INVENTION The present invention aims at solving the above-mentioned problems of the prior art. (1) A hinge mechanism for attaching an elastic barrier G to a vehicular surface of a vehicle so as to be rotatable in an opening and closing direction so that mutual interference between the elastic barriers can be reduced. It is an object of the invention to (2) devise a simple mounting structure of the bracket to the elastic barrier wall G.
[0005]
[Measures taken to solve the problem]
Means taken to solve the above problem is constituted by the following elements on the premise of a fall prevention device of a railway vehicle connecting portion in which an elastic barrier is attached to a wagon surface of a railway vehicle via a hinge by a vertical hinge pin. Things.
(A) A hinge member constituting a hinge has a socket having a U-shaped cross section and a stopper for defining a closed position of the elastic barrier, and a side end of the elastic barrier is inserted into this socket and is detachable by a fixing means. Fixed to
(B) A torsion coil spring is fitted to the hinge pin, one end of the torsion coil spring is engaged with the hinge pin, and the hinge pin is turned around a boss of a mounting metal fixed to the vehicular surface and constituting the hinge. Fixed by a stopper mechanism to prevent rotation , the other end of the torsion coil spring is brought into contact with the hinge member, and the elastic barrier is urged in the closing direction by the torsion coil spring ;
(C) The stopper of the hinge member is brought into contact with the mounting metal by the urging force of the torsion coil spring to hold the elastic barrier in the closed position.
[0006]
[Action]
A hinge member that constitutes the hinge is provided with a socket having a U-shaped cross section and a stopper that defines the closed position of the elastic barrier, and a side edge of the elastic barrier material is inserted into the socket to secure bolts, set screws, rivets, and the like. By fixing by means, an elastic barrier material manufactured by stamping a flat plate can be adopted to be fitted and fixed to a socket having a U-shaped cross section of the hinge member, so that the processing cost of the elastic barrier material is inexpensive. Further, since the material such as the flat plate is made of an inexpensive arbitrary material, the material cost is low.
Further, the hinge pin is prevented from rotating around the boss of the mounting metal, a torsion coil spring is fitted to the hinge pin, and the elastic barrier is urged in the closing direction by this, and the stopper surface of the hinge member fixed to the elastic barrier material is removed. Since the elastic barrier is pressed against the mounting metal, the elastic barrier is stably held in the closed position without being moaned.
[0007]
Since the rotation of the elastic barrier to the vehicle coupler side is prevented by the stopper, even if a person falls down, the elastic barrier is firmly supported by the elastic barrier, so that the function as the fall prevention means is not hindered. Since it can rotate in the opening direction (outward) against the biasing force of the torsion coil spring, the left and right elastic barrier materials interfere with each other (collision, rubbing, etc.) when the vehicle connecting portion is bent. However, due to this contact, one of them turns outward and escapes against the urging force. Therefore, the impact at the time of mutual interference is reduced, and the elastic barrier materials do not rub against each other so strongly that they are scratched. Therefore, wear and damage of the elastic barrier material due to mutual interference are reduced.
Also, since the elastic barrier can freely open outward against the urging force of the coil spring, the operator opens the elastic barrier outward to oppose the urging force of the coil spring, thereby forming the vehicle connecting portion. You can freely enter and exit the space.
By removing the rotation stopper of the hinge pin from the mounting metal, the biasing of the elastic barrier by the torsion coil spring is released, so that the elastic barrier can be left open. Therefore, it is possible to completely and easily allow the worker to enter and exit the space of the vehicle connection portion, and to prevent the elastic barrier from hindering the work in the space of the vehicle connection portion.
[0008]
The hinge pin may be prevented from rotating with respect to the mounting metal by a structure in which a lock pin is inserted. A flat portion is provided on a part of the outer surface of the hinge pin, and the boss of the mounting metal (a boss on which the hinge pin is rotatably fitted) is screwed. A lock bolt may be screwed into the hole, and the tip may be engaged with the flat portion. In short, it is only necessary that the lock can be released relatively easily, and various detent mechanisms can be employed.
[0009]
Embodiment 1
In the first embodiment, the above-mentioned solving means is as described in the following (d) and (e).
(D) providing a hexagonal head or a square head on the hinge pin, applying a tool to the hexagonal head or the square head, and rotating the hinge pin against the torsion coil spring;
(E) The fixing position of the detent mechanism with respect to the hinge pin can be adjusted in multiple stages.
[0010]
[Action]
The fixing of the hinge pin by the rotation preventing mechanism is released, the hinge pin is rotated by applying a spanner to the hexagonal or square head of the hinge pin, and the biasing force against the elastic barrier by the torsion coil spring, that is, The pressing force of the stopper against the mounting metal can be adjusted.
The biasing force of the torsion coil spring can be easily adjusted after the assembly to the extent that the elastic barrier is prevented from being tilted and the opening and closing operation thereof is not hindered.
[0011]
Embodiment 2
The second embodiment is obtained by adding the solution of the above-mentioned problem (2), and has the following features (f) to (h).
(F) horizontal holes are provided in the side surface of the socket having a U-shaped cross section of the hinge member and the side surface of the side end portion of the elastic barrier material;
(G) the lateral hole at the side end of the elastic barrier material is a tapered hole;
(H) A taper pin is fitted into the lateral hole of the elastic barrier material, and the taper pin is tightened by a fastening means such as a bolt inserted into the lateral hole of the hinge member, so that the side of the elastic barrier material is attached to the hinge member. Was fixed.
[0012]
[Action]
When a taper pin is fitted into the tapered lateral hole (tapered hole) of the elastic barrier material and tightened, the tapered lateral hole of the elastic barrier material is expanded by the wedge action of the tapered pin. Thereby, the side end of the elastic barrier material is expanded. Therefore, the elastic barrier material can be firmly fixed to the U-shaped socket of the hinge member.
By removing the bolt, the elastic barrier material can be easily removed from the socket having the U-shaped cross section of the hinge member, so that the replacement can be performed easily and easily.
[0013]
Embodiment 3
In a third embodiment, a screw shaft is protruded from one end of the tapered pin of the second embodiment, and the screw shaft is projected from a lateral hole of a socket having a U-shaped cross section, and a nut is screwed into the screw shaft. This is to tighten the taper pin with this nut.
[0014]
Embodiment 4
In a fourth embodiment, a screw hole is provided at one end of the taper pin of the second embodiment, and a bolt inserted into a lateral hole of a socket having a U-shaped cross section is screwed into the screw hole, thereby tightening the taper pin. That is.
[0015]
Embodiment 5
In a fifth embodiment, a center through hole is provided in the tapered pin of the second embodiment, a bolt is inserted into the lateral hole of the socket having a U-shaped cross section, and the center through hole of the tapered pin, and a nut is screwed into the bolt. That is, the side wall of the socket having the U-shaped cross section was tightened, and the tapered pin was thereby tightened.
[0016]
Embodiment 6
Embodiment 6 is the above solution, wherein a number of teeth project from the inner surface of the side wall of the socket having the U-shaped cross section, and a bolt is inserted into the side hole of the side wall of the socket having the U-shaped cross section and the elastic barrier material. Into the side wall of the elastic barrier material, tighten the side wall of the socket with the U-shaped cross section, bite the teeth into the side of the elastic wall material, and fix the side edge of the elastic barrier material with the side wall of the socket with the U-shaped cross section That was done.
[0017]
Embodiment 7
In a seventh embodiment, the socket having the U-shaped cross section of the sixth embodiment is configured by combining one side wall member and the other side wall member having the L-shaped cross section.
[0018]
【Example】
Next, an embodiment will be described with reference to FIGS.
Elastic barriers G are attached to both left and right outer sides of the wife's face of the railway vehicle by hinges H. The hinge H includes upper and lower mounting members 31, an intermediate mounting member 31a, a vertically elongated hinge member 32, and hinge pins 33, 33a. The holes of the bosses 31b of the mounting members 31, 31a and the holes of the boss 32b of the hinge member 32 are provided. The hinge pins 33 and 33a are inserted into the hinge member 32 to connect the hinge member 32 to the mounting members 31 and 31a.
The hinge member 32 is a long member provided with a socket 34 having a U-shaped cross section on the front surface, and bosses 32b are protrudingly provided at the upper, lower, middle, and lower surfaces. The inner space between the side walls of the socket 34 is slightly larger (for example, about 0.1 to 0.2 mm) than the thickness of the side end of the elastic barrier material g, and six side holes 32c are formed at equal intervals in the side wall. The boss 32b is provided with a stopper 35 protruding therefrom.
The mounting metal 31 has a structure in which a boss 31b is protruded from a base portion fixed to the wive surface of the railway vehicle.
The hinge pin 33 is a shaft composed of an upper large-diameter portion (diameter: 24 mm in this example) and a lower small-diameter portion (diameter: 20 mm), and has a square portion 33h at the upper end thereof. A locking pin 33j for locking the torsion coil spring 36 is driven into the lateral hole immediately below or fixed by welding. A pair of upper and lower lateral holes 33k for preventing rotation are provided at the lower end of the lower small diameter portion of the hinge pin 33.
The upper end of the torsion coil spring 36 is a C-shaped portion 36a, and the lower end is an arm 36b. The inner diameter of the torsion coil spring 36 is slightly larger than the outer diameter of the large diameter portion of the hinge pin 33 (for example, 3mm) Large diameter and fit with margin.
The taper pin 37 has a length of about 27 mm, is about 4 mm longer than the inner space of the socket 34 of the hinge member 32, has a large-diameter portion having a diameter of 15 mm, and a small-diameter portion having a diameter of approximately 10 mm. A screw hole 37a is provided in the end face of the small diameter portion.
[0019]
In this embodiment, the lateral hole 32c in one side wall of the socket 34 having a U-shaped cross section has a diameter such that the large-diameter portion of the tapered pin 37 fits loosely, and the lateral hole 32d in the other side wall is a fastening screw. Has a diameter enough to be inserted, and a dish is also seen.
The elastic barrier material g is relatively elastic, so long as it is strong enough to support a person when it falls down, regardless of the material, material, or cross-sectional shape thereof, a hard rubber plate or a soft plastic plate A hard foamed resin plate or the like can be used, and in order to reduce the weight and cost, a foamed resin plate laminated with a decorative coating layer or an appropriately coated one is suitable. The elastic barrier material g is a flat plate obtained by punching a foamed resin plate into a predetermined size, processing the upper and lower ends, and the front and rear end surfaces thereof, and rounding the plate. The thickness is 22 mm, the length is 1100 mm, and the width is Is 167 mm, and six tapered holes 38 (see FIG. 10) slightly smaller in diameter than the tapered pin 37 are provided at one side end thereof at regular intervals.
The one side end of the elastic barrier material g is fitted into the socket 34 of the hinge member 32, and a taper pin 37 is inserted into the taper hole 38 of the elastic barrier material g from the lateral hole 32c of one side wall of the socket 34. Then, a countersunk screw 39 is inserted into the lateral hole 32d on the other side wall, and screwed into the screw hole 37a on the end face of the tapered pin 37 to be tightened. As a result, the elastic barrier material g is fixed to the socket 34, and the hinge member 32 is assembled to the elastic barrier material g.
[0020]
The torsion coil spring 36 is loosely fitted to the large-diameter portion of the hinge pin 33, and the C-shaped portion 36 a at the upper end thereof is locked to the locking pin 33 j of the hinge pin 33 for connection. In this state, the small diameter portion of the hinge pin 33 is inserted into the boss 32b of the hinge member 32 and the vertical hole of the boss 31b of the mounting member 31, and the hinge member 32 is rotatably connected to the mounting member 31. At this stage, since the hinge pin 33 is not fixed to the boss 31b and is rotatable, the spanner 33h is rotated with a wrench to rotate the torsion coil spring 36 to a predetermined strength. With the coil spring 36 twisted, the lock pin 40 is inserted into the horizontal hole 31k of the boss 31b of the mounting metal 31 and the horizontal hole 33k of the hinge pin 33, and the hinge pin 33 is fixed to the boss 31b. In this embodiment, the hinge pin 33 is fixed to the boss 31b with the two lock pins 40, but this is for securing safety against breakage of the lock pin 40.
[0021]
When the torsion force of the torsion coil spring 36 is adjusted and the hinge pin 33 is fixed to the boss 31b of the mounting member 31, the arm 36b of the torsion coil spring 36 is turned by the torsion force to the hinge member. Since the outer surface of the socket 32 is pressed against the coupler side of the vehicle, the stopper 35 is pressed against the base of the mounting metal 31, and the elastic barrier material g is at a position perpendicular to the vehicular surface of the vehicle (closed position). Firmly held.
Since the upper and lower horizontal holes 33k of the hinge pin 33 are respectively one, the adjustment range of the rotation position of the hinge pin 33 for adjusting the torsional force of the torsion coil spring 36 is 180 degrees. Since the torsional force of the torsion coil spring 36 is slightly increased (for example, 3 to 6%) by rotating by 180 degrees, the torsional force of the coil spring 36 can be finely adjusted. It is.
[0022]
[Other embodiments]
The above embodiment employs a structure in which a screw hole is provided in the small-diameter end surface of the taper pin 37, and a flat head screw 39 is screwed into the small-diameter end surface to tighten the taper pin 37. It is also possible to adopt a structure in which the screw shaft 37b is projected out of the socket 34, and a cap nut is screwed onto the screw shaft 37b and tightened (see FIG. 13).
[0023]
Also, a small-diameter convex portion 41a is provided at the large-diameter end of the taper pin 41 whose length is slightly shorter than the taper pin 37 (see FIG. 14), a center hole is provided in the taper pin 41, and the small-diameter convex portion 41a is One of the side walls is protruded, a bolt 42 is inserted through the side wall, a nut N is screwed into the tip, and tightened. The head of the bolt 42 pushes the small-diameter convex portion 42 of the taper pin 41 to push the taper pin 41 into the taper pin 41. The elastic barrier material g can be fixed to the socket 34 by the wedge action of the pin 41 and the tightening force of the bolt 42.
[0024]
Also, the elastic barrier material g can be sandwiched and fixed between both side walls of the socket by the tightening force of the bolt without using a taper pin. In this case, it is also possible to adopt a structure in which the socket 34 is constituted by separate side wall members 43 and 44 without forming both walls of the socket having a U-shaped cross section as one body (see FIG. 15). In this case, a boss 43b and a stopper 35a are provided on one of the side wall members 43, and the other side wall members 44 are combined and connected by a set screw 45. Also, the side end of the elastic barrier material g is fitted into the socket 34, passed through a bolt 45, fastened with a cap nut 46, and fixed by sandwiching the side end of the elastic barrier material g between the side wall members 43 and 44. In this case, if a large number of teeth (projections) such as vertical spline teeth are provided on the inner surfaces of the side wall members 43 and 44, they will bite into the side surfaces of the elastic barrier material g, so that the bonding strength between the elastic barrier material g and the socket 34 is reduced. It will be even stronger. In this example, the bolt 45 with a hexagonal head is inserted from the side hole of the side wall member 43. However, a structure in which the bolt is welded and fixed to the side wall member 43 may be adopted.
[0025]
【The invention's effect】
1. Effect of the First Invention Regarding a fall prevention device for a railway vehicle connecting portion in which an elastic barrier is attached to a wife surface via a hinge formed by a vertical hinge pin, a hinge member forming a hinge has a socket having a U-shaped cross section, and an elastic barrier. A stopper for defining a closed position is provided, and a side end of the elastic barrier material is inserted into this socket, fixed removably by fixing means, a torsion coil spring is fitted to the hinge pin, and the torsion is performed. One end of the coil spring is engaged with the hinge pin, the hinge pin is prevented from rotating on the boss of the mounting metal fixed to the vehicle wive surface and constituting the hinge, and the elastic barrier is urged in the closing direction by the torsion coil spring. Then, the bias of the torsion coil spring causes the stopper of the hinge member to come into contact with the mounting metal and to be held at the closed position, so that the elastic barrier does not move inward of the vehicle (the vehicle coupler side). From Human beings is certainly supported by this is also nearing fallen to this. On the other hand, since the elastic barrier can freely move outward in the vehicle direction against the biasing force of the torsion coil spring, even if the vehicle connecting portion is largely bent and a pair of elastic barriers facing each other interfere with each other, the elastic barrier is not affected. Since one escapes in the vehicle outward direction, damage to the elastic barrier material due to the interference is reduced. Therefore, no special consideration is required for the elastic barrier material for alleviating the impact due to the interference and ensuring the abrasion resistance. Therefore, since various materials can be used as long as the elastic barrier material has a predetermined strength, material costs can be reduced.
Further, since the elastic barrier is turned outwardly against the urging force of the torsion coil spring, the worker can easily open it outward, and in a state where the elastic wall is opened, the gap between the wives can be obtained. You can freely enter and exit the space. Therefore, workability such as maintenance work of the vehicle connecting portion is improved.
[0026]
2. According to the second aspect of the present invention, a lateral hole is provided in a side surface of the socket having a U-shaped cross section of the hinge member and a side end of the elastic barrier material, and the lateral hole at the side end of the elastic barrier material is tapered. By fitting a taper pin into the lateral hole of the above, tightening the taper pin by a fastening means such as a bolt inserted from the lateral hole of the hinge member, and fixing the side end of the elastic barrier material to the hinge member. When a tapered pin is fitted into the tapered lateral hole (tapered hole) of the elastic barrier material and tightened, the tapered lateral hole of the elastic barrier material is expanded by the wedge action of the tapered pin. Thereby, the side end portion of the elastic barrier material is inflated, and is firmly fixed to the socket having a U-shaped cross section of the hinge member. Also, by removing the bolt, the elastic barrier material can be easily removed from the socket having the U-shaped cross section of the hinge member, and thus the replacement can be performed easily and easily. Therefore, it is not necessary to embed metal fittings in the elastic barrier material, and it is not limited to die molding such as injection molding. Therefore, the elastic barrier material can be formed by a simple processing method such as punching. The degree of freedom increases. Therefore, the range of materials and materials for the elastic barrier material can be widened, and material costs and molding costs can be significantly reduced.
[Brief description of the drawings]
1 (a) is a plan view of a conventional elastic barrier, FIG. 1 (b) is a front view, and FIG. 1 (c) is an enlarged plan view of a main part.
FIG. 2 is a plan view of another conventional elastic barrier.
FIG. 3 is an enlarged sectional view of an elastic barrier material of the elastic barrier of FIG. 2;
FIG. 4 is a plan view of an elastic barrier according to the embodiment.
FIG. 5 is a front view of the elastic barrier according to the embodiment.
FIG. 6 is a plan view showing an operation state of the elastic barrier according to the embodiment.
FIG. 7 is a plan view showing another operation state of the elastic barrier of the embodiment.
FIG. 8 is an enlarged front view of a main part of the elastic barrier according to the embodiment.
FIG. 9A is a plan view of the hinge pin of the embodiment, and FIG. 9B is a front view.
FIG. 10 is an enlarged plan view of a main part of the elastic barrier according to the embodiment (in the direction of arrows CC in FIG. 8).
11A is a front view of a torsion coil spring, FIG. 11B is a plan view, and FIG. 11C is a side view.
FIG. 12 is a front view of the tapered pin of the embodiment.
FIG. 13 is a front view of another example of a tapered pin.
FIG. 14 is a cross-sectional view of another example of a fixing structure of the elastic barrier material and the hinge member.
FIG. 15 is a cross-sectional view of still another example of the fixing structure between the elastic barrier material and the hinge member.
[Explanation of symbols]
G: elastic barrier g: elastic barrier S: gap between elastic barrier tips N: nut 31: mounting metal 31k: horizontal hole 32: vertically long hinge member 32b: boss 32c, 32d: horizontal hole 33 of hinge member 33: hinge pin 34. : Socket 35, 35a having a U-shaped cross section: Stopper 33: Hinge pin 33h: Square portion 33j: Locking pin 36: Torsion coil spring 36a: C-shaped portion 36b of torsion coil spring 36: Torsion coil Arms 37, 41 of spring 36: taper pin 37a: screw hole 38: taper hole 39: countersunk screw 40: lock pin 42: bolts 43, 44: side wall members forming hinge members

Claims (8)

In a fall prevention device of a railway vehicle connecting portion in which an elastic barrier is attached to a wife surface via a hinge by a vertical hinge pin,
A hinge member constituting the hinge has a socket having a U-shaped cross section and a stopper for defining a closed position of the elastic barrier, and a side end of the elastic barrier is inserted into the socket and is detachably fixed by fixing means. And
A torsion coil spring is fitted to the hinge pin, one end of the torsion coil spring is engaged with the hinge pin, and the hinge pin is fixed to a boss of a mounting metal fixed to the vehicular surface of the vehicle and forming a hinge by a detent mechanism. It is fixed and stopped, and the other end of the torsion coil spring is brought into contact with the hinge member to urge the elastic barrier in the closing direction with the torsion coil spring ,
A fall prevention device for a railroad vehicle connecting portion in which a stopper of the hinge member is brought into contact with the mounting metal by an urging force of a torsion coil spring to hold an elastic barrier in a closed position. A hexagonal or square head is provided on the hinge pin, and a tool is applied to the hexagonal or square head to rotate the hinge pin against the torsion coil spring,
2. The fall prevention device for a railway vehicle connecting portion according to claim 1, wherein a fixing position of the rotation preventing mechanism to the hinge pin can be adjusted in multiple stages. A lateral hole is provided on the side surface of the socket having a U-shaped cross section of the hinge member and the side surface of the side end portion of the elastic barrier material,
The lateral hole at the side end of the elastic barrier material is a tapered hole,
A taper pin is fitted into the lateral hole of the elastic barrier material, and the taper pin is tightened by a fastening means such as a bolt inserted from the lateral hole of the hinge member to fix the side of the elastic barrier material to the hinge member. The fall prevention device for a railway vehicle connecting portion according to claim 1. A screw shaft is protruded from one end of the tapered pin, and the screw shaft is projected from a lateral hole of a socket having a U-shaped cross section, a nut is screwed into the screw shaft, and the tapered pin is tightened with the nut. Item 3. The fall prevention device for a railway vehicle connecting portion according to Item 3. 4. The tapered pin according to claim 3, wherein a screw hole is provided on an end surface of the small diameter portion of the tapered pin, and a bolt inserted from a lateral hole of a socket having a U-shaped cross section is screwed into the screw hole, thereby tightening the tapered pin. Fall prevention device for railcar connection. A center through hole is provided in the tapered pin, a bolt is inserted through the lateral hole of the socket having a U-shaped cross section and the center through hole of the tapered pin, and a nut is screwed into the bolt to tighten the side wall of the socket having the U-shaped cross section. 4. The fall prevention device for a railway vehicle connecting portion according to claim 3, wherein the taper pin is tightened by this. A number of teeth protrude from the inner surface of the side wall of the socket having the U-shaped cross section, a bolt is inserted into the side hole of the socket having the U-shaped cross section and the side end of the elastic barrier material, and a nut is screwed into the bolt, 2. The side wall of the elastic barrier material is fastened by tightening a side wall of the socket having the U-shaped cross section, and the side end of the elastic barrier material is sandwiched and fixed by the side wall of the socket having the U-shaped cross section. Fall prevention device for railway vehicle connection part. The fall prevention device for a railcar connecting portion according to claim 7, wherein the socket having the U-shaped cross section is configured by combining one side wall member and the other side wall member having an L cross section.

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