JP2002173023A - Outer bellows for preventing fall in car coupling part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outer bellows for preventing fall in a car coupling part taking the connection between a support part (shaft plate) and a bellows part as a coupler type, and capable of facilitating storing and attach/detach work, and reducing the manufacturing cost. SOLUTION: The outer bellows 9 is formed by a rubber elastic body forming bellows parts 9a, 9a', and the support part 9b supporting the bellows parts. The support part 9b has one ridge line chamfered to be like a deformed U-shaped in section and elongated, and upper and lower end core bars serving as vertical rotating shafts are secured to the upper and lower end parts of the support part. The support part is provided with a contact plate 9c, so that it can be rotated within a gap area between the coupled cars. Thus, a single plate of the rubber elastic body or a U-shaped cut end part of a double structure is engaged and inserted from the side in an opening part of the support part 9b to form the outer bellows 9 of the coupler type. The outer bellows are disposed opposite to each other through a bearing part having a fixing member 17 in the end surfaces of the front and rear cars. By inserting and removing only the fixing members 17, the outer bellows 9 are rotated to be stored or fixed in designated positions, whereby the outer bellows can be easily attached and removed to an from the cars without jumping out to the platform side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accident in which a passenger on a platform falls down on a track from a space mainly serving as a gap between train connections such as electric trains and railcars. The present invention relates to an outer hood for preventing falls between vehicle connections for prevention.

[0002]

2. Description of the Related Art There are the following two types of outer hoods for fall prevention currently used.

[0003] One is a fall prevention hood disclosed in Japanese Utility Model Publication No. 7-51965.

[0004] As shown in FIGS. 7 and 8, the fall prevention hood has an outer hood mounting metal 2 fixed to a vehicle wedge surface 1 by welding or the like.
The bent end portion 3a of the U-shaped rubber elastic body 3 is sandwiched between the outer top metal fitting 2 and the holding plate 4, and the nut 6 is screwed to a bolt 5 fixed to the outer top metal fitting 2. The elastic body 3 is attached to the rear surface of the vehicle to form the outer top 7.
The mounting position of the outer hood 7 is often just outside the step 8 for climbing the roof.

Another example is a fall prevention outer hood of a different type from that described above, which has been put into practical use, for example, in a new type vehicle of the Toyoko Line or Keihin Kyuko Line. The hood, which is a constituent element of the fall prevention outer hood, is an improvement of the one disclosed in Japanese Utility Model Publication No. 7-51965, in which an operator connects or disconnects the vehicle to connect or disconnect the vehicle. When going down to the space between them, the outer hood 7 becomes an obstacle, so that the outer hood is rotatable toward the center of the vehicle so as to be easily lifted and lowered from the platform. In this rotary fall prevention outer top, a mandrel is welded to a pipe serving as a rotating shaft, and the pipe is bonded and integrated with chloroprene rubber or EPDM serving as a top.

Another example is disclosed in Japanese Patent Application Laid-Open No. 10-6987.
In Japanese Patent Application Laid-Open Publication No. H10-209, there is known a configuration in which a hinge is used as a rotation shaft and bolts and nuts are used for fixing.

[0007]

However, in the above-mentioned conventional example, since the pipe serving as the axis for rotation is integrated into one side of the hood, an integrated bonding structure is required. Using a simple molding die, and one point for each molding die using rubber or rubber-like material.
It must be formed in a series of processing steps of mixing, charging, heating, cooling, demolding, and finishing raw materials. Therefore, there is a problem that this processing is troublesome and production efficiency is not good, and there is a problem that the cost is increased because the mold is expensive.

[0008] Inspection steps and rain gutters are provided on the wives' side of the vehicle, and the installation place of the outer hood is limited. Therefore, it often interferes with maintenance of the air conditioner and other equipment on the roof and is removed. There is a problem that work occurs.

The present invention has been made by paying attention to the above-mentioned point, and does not make the support portion (shaft plate) serving as the vertical rotation shaft and the hood portion an integral bonding structure, but uses a screw or a rivet. An object of the present invention is to provide an outer top cover for preventing falling between vehicle connections, which is easy to store and detach, and is made of an environmentally friendly material with low cost and low production cost.

[0010]

The present invention can solve the above-mentioned problems by providing the following constitution.

(1) An outer hood for preventing an accident that a passenger on a platform falls on a track from a space serving as a gap between vehicle connections, the outer hood being a rubber-like elastic body forming a hood portion. And a supporting portion for supporting the hood vertically.
The supporting part has a U-shaped slender body with a U-shaped cross section with a chamfered edge of the U-shape. At the upper and lower ends of the U-shaped slender body with a U-shaped cross section, upper and lower mandrels serving as vertical rotation axes are fixed. In addition, an abutment plate serving as a one-way detent is provided on the upper and lower ends of the upper and lower ends of the elongated body having a U-shaped cross section so as to be rotatable only in the gap region between the vehicle connections. Folded into a U-shape from the center as a heavy structure, and the base of the veneer or the cut end of the U-shaped folded two sides is engaged with the opening of the cross-sectionally deformed U-shaped elongated body from the side. An outer hood of a coupling type structure that is inserted and coupled using a coupling member is formed, and a bearing portion having a fixing member on the front and rear vehicle front surfaces facing the outer hood like a door in a space serving as a gap between vehicles and facing the outer hood. The outer hood is rotated only inside the center of the vehicle by the operation of inserting and removing the fixing member. Possible or fixed at a predetermined position so that the outer hood itself does not protrude to the platform side or the outside, and the outer hood has a structure that is easily detachable from the vehicle side. For outer hood.

(2) The rubber-like elastic body forming the hood is J
Olefinic thermoplastic elastomer having an IS hardness in the range of 60 to 90, or at least one of natural rubber, styrene butadiene rubber, chloroprene rubber, ethylene propylene diene copolymer, urethane rubber and nitrile butadiene rubber An outer hood for fall prevention between vehicle connections according to the above (1), characterized by comprising:

(3) The upper and lower mandrel, which is the vertical rotation axis of the outer hood, is fitted and inserted into the upper and lower bearings mounted on the rear surface of the vehicle, and fixed using fixing members which can be easily inserted and removed. By attaching a fixed cylindrical member to the lower bearing and a swing-type cylindrical member that can swing back and forth around the mounting shaft like a pendulum at the upper bearing, The outer hood for fall prevention between vehicle connections according to the preceding paragraph (1), wherein the outer hood is configured to be easily detachable via upper and lower mandrel at upper and lower bearings, with smooth rotation operation.

[0014]

Embodiments of the present invention will be described below.

FIG. 1 (a) is a plan view (platform side) showing a mounting state of a fall prevention outer hood between vehicle connections according to the present invention, and FIG. 1 (b) is a fall prevention between vehicle connections according to the present invention. FIG. 2 is an explanatory view showing an assembling structure of the outer hood according to the present invention, and FIG. 2 (a) shows a supporting portion in a state where a patch plate serving as a stopper is mounted. FIG. 3B is a plan view and a side view showing the shape of the elongated U-shaped elongated body having a deformed cross section, FIG. 3B is a plan view and a side view showing a structure after assembling the outer top of the combined type, and FIG. FIG. 4 is a plan view showing a mechanism for stopping rotation of the backing plate, FIG. 5A is a plan view showing the operation of a fixing pin in a state where the outer top is fixed, and FIG. , An enlarged plan view showing the use state of the fixing pin when 45 ° is the storage position,
FIG. 6A is a cross-sectional view of a method of connecting the support portion (shaft plate) and the hood (in the case of the hood: single plate), and FIG. 6B is a method of connecting the support portion (shaft plate) and the hood portion (hood). FIG. 7 is a plan view showing a configuration of a conventional example, and FIG. 8 is a side view showing a configuration of a conventional example.

In FIGS. 1 (a), 1 (b), 2 and 3, reference numeral 1 denotes a vehicle wedge surface, which is connected and opposed to the vehicle wedge surface 1, 1
The upper mounting members 14, 14 and the lower mounting members 15, 15 are fixedly mounted via a base 16, and the upper mounting members 14, 14 are provided with swing type cylindrical members 12, 12 as upper end bearings. Fixed cylindrical members 13, 13 are respectively mounted on the lower mounting members 15, 15 as lower end bearings, and the swing type cylindrical members 12, 12 serving as the upper end bearings are mounted on the upper mounting members 14, 14. The fixed cylindrical members 13, 13 which are swingably suspended like a pendulum via 12b and serve as lower end bearings are fixed to the lower mounting members 15, 15 by welding or the like.

The rubber-like elastic material forming the hoods 9a and 9'a includes olefin-based thermoplastic elastomer, natural rubber, styrene-butadiene rubber, chloroprene rubber, ethylene-propylene-diene copolymer (hereinafter referred to as "EPDM").
At least one of urethane rubber and nitrile butadiene rubber, or a mixture of the above substances /
A formulation is used.

The hoods 9a and 9'a may be formed by laminating or covering the above rubber-like elastic bodies.
For example, chloroprene rubber or EPDM having excellent flame retardancy and weather resistance is used for the surface layer portions of the hood portions 9a and 9'a, and the inner layer portion has economic advantages other than the chloroprene rubber and EPDM. Rubber-like elastic materials such as olefin-based thermoplastic elastomers, natural rubber, styrene-butadiene rubber, urethane rubber, and nitrile-butadiene rubber can be used.

The outer top 9 has a top 9 made of a rubber-like elastic material.
a, 9'a in the vertical direction. The supporting portion 9b has a U-shaped slender body with a U-shaped cross section obtained by chamfering the ridgeline of the U-shape. An upper end mandrel 11a and a lower end mandrel 11b serving as a vertical rotation axis are fixedly integrated at the upper and lower ends of the body by a welding method or the like, and are rotatable, and are rubber-like forming the hood portions 9a and 9'a. A single plate of an elastic body, or a double structure, folded back in a U-shape from the center, and the base of the single plate-shaped hood 9a or the folded two cut ends of the U-shaped hood 9'a An outer top 9 of a coupling type structure which is engaged / inserted from the side into the opening of the support portion 9b forming the elongated U-shaped elongated body and coupled using a coupling member 10 such as a screw member or a blind rivet. Constitute.

FIGS. 1 (a) and 1 (b) are views showing a normal state on the platform side.

Reference numeral 9c denotes a backing plate which serves as a positioning stopper for the outer top 9 in normal times and does not protrude toward the platform.

As shown in FIGS.
The upper mounting member 14 is fixed to fix the
The fixing hole 12a formed in the swing type cylindrical member 12 serving as the upper end bearing fixed to the base 16 via the base and the fixing hole 11c formed in the upper mandrel 11a of the outer top 9 are connected. Fixing members 17 such as fixing pins or bolts
And a fixing hole 13a formed in a fixed cylindrical member 13 serving as a lower end bearing portion fixed to a base 16 via a lower mounting member 15 and a lower end mandrel of the outer top 9. A fixing member 17 such as a fixing pin or a bolt described later is inserted and fixed at a position where the fixing hole 11d formed in the hole 11b is engaged.

FIGS. 6 (a) and 6 (b) show a method of connecting the hoods 9a and 9'a forming the outer hood 9 and the elongated U-shaped body having a deformed cross section which forms the support (shaft plate) 9b. As shown in (), for example, (a) uses a spacer (distance piece) or the like to maintain the thickness and shape of the veneer 9a, and fixes it with a coupling member 10 such as a bolt and a nut. However, depending on the size, thickness, etc. of the hood portion 9a using the rubber-like elastic body described above, a spacer (distance piece) may not be used depending on the degree of shape retention. .

FIG. 6B shows a case of a U-shaped 9'a, which is an example in which a blind rivet is used as the connecting member 10 because of the double structure.

It should be noted that the outer hoods 9, 9 which form a pair facing each other are shown in FIG.
As shown in (b), it is arranged so as to have a spacing D,
The narrower the better, so that people do not fall off, it is better, but when the vehicle passes the curve point, the vehicle end face inside the curve approaches and the tips of the hoods 9a, 9a (9'a, 9'a) come into contact. Even if a rubber-like elastic body is used, there is a possibility that a strong force acts and damages the rubber-like elastic body if they are too close to each other. Therefore, in order to prevent such a damage accident from occurring, an interval of about 10 cm is usually appropriate.

The distance F between the lower edges of the tops 9a, 9'a and the upper surface of the platform is preferably about 10 to 15 cm in order to more reliably prevent the passengers on the platform from falling. The height H of the portions 9a and 9'a is desirably about 1 m or more.

As described above, the hood portions 9a and 9'a are usually made of a rubber-like elastic material to prevent damage. However, in this case, the hardness which affects the elasticity is easily set, and the molding cost is reduced. Although an olefin-based thermoplastic elastomer which is advantageous in the above was selected and used, the present invention is not limited to this.

There is a correlation between the thickness T of the tops 9a and 9'a shown in FIG. 2 and the hardness of the material, and when the hardness of the material is small considering the rigidity of the tops 9a and 9'a. Must have a large thickness T. If the hardness is high, the thickness T can be reduced. However, considering the material cost, the thickness T
The thinner is advantageous.

Incidentally, in the present embodiment, the hood 9a,
The thickness t (not shown) of the material 9′a is 10 to 10 in the case of a single plate.
The best fit was in the range of 5 mm to 10 mm when 20 mm and U-shaped.

Here, the hoods 9a, 9 'shown in FIG.
The experiment was repeated by setting the proof stress for preventing a person from falling off from the interval D in the front-rear direction of a at about 30 kg. In the present embodiment, molding was performed using an olefin-based thermoplastic elastomer having a JIS hardness of 85 to 90 (eg, trade name Miraplane 1624 manufactured by Mitsubishi Chemical MKV Co., Ltd.). When an olefin-based thermoplastic elastomer having a JIS hardness of 60 to 85 and a relatively small hardness is used, it can be demonstrated that the material can be produced without problems by increasing the thickness t (not shown) of the material of the hood portions 9a and 9'a. Was.

When the hardness is less than 60, the rigidity is weak and cannot be applied to the present application, and when it is more than 90, processing is difficult.

The upper end mandrel 11a and the lower end mandrel 11b are machined from a stainless steel bar material, and the supporting portion (shaft plate) 9b is
As shown in FIG. 2, a stainless plate-shaped material is formed by pressing or the like into a slender body having a U-shaped cross section as shown in FIG. An upper end mandrel 11a and a lower end mandrel 11b are fixedly integrated at both ends of the support portion (shaft plate) 9b in the elongated direction using a welding method.

The support portion (shaft plate) 9b is formed as a slender body having a U-shaped cross section and the chamfered side is disposed on the inner side of rotation so that the outer cover 9 can be rotated toward the center of the vehicle on the inner side. 1 (a), so that the worker can easily move up and down from the platform.

FIG. 4 shows a one-way rotation stopping mechanism of the outer top 9 by the contact plate 9c. This mechanism includes a support portion (shaft plate) 9b
The contact plate 9c is placed on the side not chamfered with the center line of the upper and lower ends of the upper and lower ends of the elongated body having a U-shaped cross section, and the center lines of the tops 9a and 9'a constituting the outer top 9 are formed. 4, the hoods 9a and 9'a rotate inward as the center of the vehicle as shown in FIG. The hood portions 9a and 9'a are configured so as not to rotate further outward in a state where the centers of the hood portions 9a and 9'a are at right angles to the base 16 so that the outer hood 9 does not protrude to the outside on the platform side. It has become.

FIG. 5 shows the operation of the fixing pin 17 in a state where the outer top 9 is fixed. When the position of the fixing pin in a normal state is used as a reference, for example, the position where the outer top 9 is rotated inward by 45 ° is shown. 2 and 3 and FIG. 5 (a),
As shown in (b), fixing holes 11c, 11d and 12a, 13a are formed at positions where the upper and lower mandrel 11a, 11b and the upper and lower bearings 12, 13 engage with each other. By inserting the outer cover 17, the outer cover 9 can be fixed at a desired storage position.

The base 16 includes the upper and lower mounting members 1
It is a base for positioning and fixing the bases 4 and 15, and by attaching this base 16 to the vehicle end surface 1, the support portion is provided.
The outer top 9 composed of the (shaft plate) 9b and the tops 9a and 9'a can be easily and accurately mounted. When the upper and lower mounting members 14 and 15 are mounted on the rear side 1 of the vehicle, for example, the mutual positions of the upper and lower mounting members 14 and 15 are accurately arranged by using a special jig or the like. If it can be installed, the base 16 is not always necessary.

The structure of the outer hood mounting portion will be described in detail with reference to FIG.
fixed cylindrical member 1 serving as a lower end bearing that can be fitted to b
3 is fixedly integrated by a welding method or the like, and further fixed to the base 16 by a spot welding method or the like. Fixed cylindrical member 1
3 is provided with a fixing hole 13a having a diameter of, for example, about 6 mm.
The fixing pin 17 as shown in (1) is detachable, so that the rotation and fixing of the outer top 9 can be easily switched.

The upper mounting member 14 is similarly fixed to the base 16 by a spot welding method or the like, and is a swing type cylindrical member 1 serving as an upper end bearing that can be fitted to the upper end mandrel 11a.
A hole having a diameter of several millimeters is formed so that the upper mounting member 14 and the upper mounting member 14 are coaxial with each other. As shown in FIG. A mounting shaft 12b such as a bolt and a nut is provided so that the nut can swing about 30 ° (angle θ). For example, a split pin or the like is inserted and fixed so that the nut does not fall off due to vibration or the like.

The hoods 9a and 9'a constituting the outer hood 9 have a height H (FIG. 1 (b)), and support portions (shaft plates) 9 of the outer hood 9 are provided.
The distance between the lower end of the swing type cylindrical member 12 serving as the upper end bearing and the upper end of the fixed type cylindrical member 13 serving as the lower end bearing with respect to the height dimension HL within b (see FIG. 2B). As shown in FIG. 3 (in the direction of arrows C-C), the dimensions are HL + α having a sufficient margin so as not to hinder the attachment and detachment of the outer top 9.
It has become.

As for the other reference numerals, reference numeral 8 denotes a step used when the worker goes up and down.

A method of attaching and detaching the outer hood 9 based on the above configuration will be described.

First, as a mounting method, the lower end of the swing type cylindrical member 12 serving as the upper end bearing portion is pulled toward the front of the vehicle in the front-rear direction to swing (angle θ) (see arrows in FIGS. 3C-C), and the upper end mandrel is used. 11a is the swing type cylindrical member 1
2 and then, while returning the outer top 9 in the vertical direction, lift up until the lower end of the lower end mandrel 11b fends off the upper end of the fixed cylindrical member 13 serving as the lower end bearing portion,
The lower mandrel 11b and the fixed cylindrical member 13 are kept in that state.
After lowering the outer hood 9, the lower mandrel 1
1b is inserted into the fixed cylindrical member 13 and attached. In this state, the outer hood 9 rotates inward toward the center of the vehicle and becomes unstable, so that the lower end mandrel 11b and the hole 11d having a diameter of about 6 mm formed in the fixed cylindrical member 13 are provided. FIG. 5 (a) with the center of 13a matched.
As shown in (b), the fixing pin 17 is inserted, and the state that the outer hood 9 is fixed to the vehicle wife surface 1 is maintained, so that the outer hood 9 can function as a fall preventing outer hood.

A method of removing the outer top 9 will be described. First, the lower end mandrel 11b and the fixing pin 17 (FIG. 5) inserted into the fixed cylindrical member 13 serving as the lower end bearing portion.
(See (a) and (b)), and then lift the outer top 9 until the lower end of the lower end mandrel 11b fends over the upper end of the fixed cylindrical member 13, and lift the lower part of the outer top 9 forward. Pull the lower end of the lower end mandrel 11b to the fixed cylindrical member 13
Dodging the upper end of the swing type cylindrical member 12, and then lowering the outer top 9, and using the upper end mandrel 11 a as an upper end bearing portion
It can be removed by pulling it out. Thus, according to the present invention, the outer top 9 can be easily attached and detached.

The fixing pins may be bolts and nuts.

Further, among the rubber-like elastic materials used for the hood, the olefin-based thermoplastic (TPE) elastomer represented by the above-mentioned Miraplane (manufactured by Mitsubishi Chemical MKV Co., Ltd.) is rated by a test conducted by the Ministry of Transport. Suitable for practical use with at least one of the five grades of nonflammability, extremely flame retardancy, flame retardancy, slow flammability, and flammability in the "Rolling stock material combustion test" I will add that

[0046]

According to the present invention, (1) the outer hood can be easily rotated and stored by simply inserting and removing one fixing pin, and (2) the upper end bearing is of a swing type. As a result, the rotation of the outer hood becomes smooth, and the attaching / detaching operation becomes easy. (3) By using a rubber-like elastic material for the material of the hood, it is easy to set the hardness which affects the elasticity. In addition, since the support part (shaft plate) and the hood part are combined, a mold and the like at the time of manufacturing the hood part become unnecessary, and continuous extrusion and continuous vulcanization operations become possible. (4) The olefin thermoplastic elastomer, natural rubber, styrene butadiene rubber, chloroprene rubber, EPDM, urethane rubber, and nitrile butadiene rubber selected as the material for the hood are recycled (reused,
(Recycling of resources) is possible, so that it is environmentally friendly and economical.

[Brief description of the drawings]

FIG. 1 (a) is a plan view (platform side) showing an installation state of a fall prevention outer hood between vehicle connections according to the present invention;
(B) is a side view showing the state of attachment of the outer hood for preventing falls between vehicle connections according to the present invention.

FIG. 2 is an explanatory view showing an assembling structure of an outer top according to the present invention, wherein (a) shows a shape of a cross-sectionally deformed U-shaped elongated body forming a support portion in a state in which a contact plate serving as a stopper is attached. FIG. 3B is a plan view and a side view, and FIG.

FIG. 3 is an explanatory view showing a structure of an outer hood mounting portion according to the present invention.

FIG. 4 is a plan view showing a rotation stopping mechanism of the backing plate.

5A is a plan view showing the operation of the fixing pin in a state where the outer top is fixed, and FIG. 5B is an enlarged plan view showing the use state of the fixing pin when the storage position is set at 45 °.

6A is a cross-sectional view of a method of connecting a support portion (shaft plate) and a hood portion (a hood portion: in the case of a single plate), and FIG. 6B is a method of connecting a support portion (shaft plate) and a hood portion (a hood portion: (When folded back into a U-shape)

FIG. 7 is a plan view showing a configuration of a conventional example.

FIG. 8 is a side view showing a configuration of a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Vehicle wrist surface 2 Outer hood attachment metal 3 U-shaped rubber elastic body 4 Holding plate 5 Bolt 6 Nut 7 Conventional outer hood 8 Step 9 Outer hood (according to the present invention) 9a, 9'a hood ( Rubber-like elastic body 9b Support part (shaft plate) 9c Backing plate (stopper) 10 Coupling member (screw member or blind rivet) 11a Upper mandrel 11b Lower mandrel 11c, 11d, 12a, 13a Fixing hole 12 Upper bearing part ( Swing type cylindrical member 13 Lower end bearing part (fixed type cylindrical member) 14 Upper mounting member 15 Lower mounting member 16 Base 17 Fixing member (Fixing pin)

Claims (3)

[Claims] 1. An outer hood for preventing an accident that a passenger on a platform falls down on a track from a space serving as a gap between vehicle connections, the outer hood being a rubber-like elastic body forming a hood. A supporting portion for vertically supporting the hood portion, wherein the supporting portion has a U-shaped elongated body having a cross-sectionally deformed U-shape with a chamfered edge of the U-shape. The upper and lower mandrel that becomes the vertical rotation axis is fixed to the part, and the abutment plate that stops rotation in one direction is provided on the upper and lower back of the upper and lower ends of the U-shaped slender body with a deformed cross section, and only in the gap area between the vehicle connections Rotatable, and the rubber-like elastic body is folded back in a U shape from the center as a single plate or a double structure, and the base of the single plate or the U
The two folded cut ends of the U-shape are formed into an outer hood of a coupling type structure that is engaged and inserted from the side into the opening of the elongated U-shaped elongated body having a cross-sectional shape of U and is coupled using a coupling member. , The outer hood is arranged like a door in the space that becomes the gap between the vehicles via a bearing part having a fixing member on the front and rear vehicle front surfaces, and the outer hood is only moved by inserting and removing the fixing member. A structure that can be rotated and stored only inside the center direction of the center, or fixed at a predetermined position so that the outer hood itself does not protrude to the platform side or the outside, and the outer hood is easily detachable from the vehicle side. An outer hood for preventing falls between vehicle connections. 2. The rubber-like elastic body forming the hood is made of JIS
Olefinic thermoplastic elastomer having a hardness in the range of 60 to 90, or natural rubber, styrene butadiene rubber,
2. The outer hood according to claim 1, wherein the outer hood comprises at least one of chloroprene rubber, ethylene / propylene / diene copolymer, urethane rubber and nitrile butadiene rubber. 3. An upper end and lower end mandrel serving as a vertical rotation axis of the outer hood are fitted and inserted into upper end and lower end bearings attached to the vehicle wedge surface, and are fixed using fixing members which are easy to insert and remove, respectively. A fixed cylindrical member is attached to the lower end bearing part, and a swing type cylindrical member that can swing back and forth around the mounting shaft is attached to the upper end bearing part like a pendulum, so that the outer top can be turned around. 2. The outer hood for fall prevention between vehicle connections according to claim 1, wherein the upper and lower bearings are configured so that the outer hood can be easily attached and detached via upper and lower mandrel.