JP4815165B2 - Exterior hood structure for vehicle connection - Google Patents

Description

  The present invention relates to an outer hood structure for a vehicle connecting portion that is attached to a connecting portion of a railway vehicle. More specifically, the aerodynamic noise and running resistance during high-speed traveling are reduced, and the vehicle connecting portion is easily separated during maintenance and the like. Further, the present invention relates to an outer hood structure for a vehicle connecting portion that can reduce the weight of a component because of high-speed traveling, reduce the mounting space of a vehicle, and can follow a large displacement.

  Today, high-speed railway vehicles exceeding 300 km / hour such as the Nozomi Shinkansen have appeared, and the generation of wind noise during travel at the connecting part has become a problem. As a countermeasure, an outer hood for a vehicle connecting portion having a structure in which the connecting portion of the vehicle is covered with a hood such as a rubber elastic body and a urethane composite material has been proposed. However, in this case, since the structure is such that the vehicles are connected by a hood, there is a problem in that much labor and time are required when the vehicle connecting portion is disconnected.

In addition to the outer hood for vehicle connection parts made of rubber elastic bodies, etc., various outer hoods for vehicle connection parts that have a predetermined air chamber and ensure the rigidity of the rubber elastic body by the action of this air chamber are also proposed. (Patent Documents 1 to 5).
JP-A-7-300070 (Claims etc.) JP-A-9-136647 (Claims etc.) JP-A-11-198805 (Claims etc.) Japanese Patent Laid-Open No. 11-291902 (Claims etc.) JP 11-291903 A (claims, etc.)

  The outer hood structure for a vehicle connection part described in the above Patent Documents 1 to 5 can reduce aerodynamic noise and running resistance during high-speed traveling, but this outer hood structure is an integrated structure that covers the connection part of the vehicle. In such a case, a large number of man-hours are required for disconnecting the vehicle connecting portion in maintenance or the like, and handling is difficult. In addition, since the applicable vehicle is traveling at high speed, it is required to reduce the weight of parts, and there is a restriction on the installation space of the vehicle. In addition, it is necessary to satisfy the followability to a large displacement that is input when the curvature of the on-site trajectory branch is small.

  Accordingly, an object of the present invention is to be attached to a connecting portion of a high-speed railway vehicle exceeding 270 km / h, effectively reducing noise and running resistance during high-speed running, and large displacement input when branching a campus track. In addition to good trackability (hereinafter abbreviated as “displacement absorption”), easy disconnection of the vehicle connection part for maintenance, etc., weight reduction of parts due to high speed running, and further reduction of vehicle installation space An object of the present invention is to provide an outer hood structure for a vehicle connecting portion that can be realized.

  As a result of intensive studies to solve the above-mentioned problems, the present inventors have configured the outer hood for the vehicle connection portion with an elastic body so that it can follow the relative movement between the vehicle mountings, and ensure its rigidity even during high-speed traveling. For this purpose, a predetermined air chamber is provided, and the air pressure of the air chamber can be adjusted as appropriate, thereby reducing noise during high-speed traveling and good absorption for large displacement input when the track is branched. As a result, the present invention has been completed.

That is, the outer hood structure for a vehicle connecting portion of the present invention is in contact with each other in the outer hood structure for a vehicle connecting portion mounted on the edge of the railway vehicle facing each other at the connecting portion of the railway vehicle . a pair of outer hood member cormorants covering the connecting portion, the outer hood forming member, and the air chamber and a coating rubber sheet covering the air chamber is stretched to the coupling surface of the edge portion of the railway car And the air chamber of the outer hood forming member is formed of a substantially cylindrical air chamber having a daruma-shaped outer shape by connecting two air chambers having different circumferential lengths in cross section, In the air chamber, an air hole is formed in a partition wall formed at a boundary between an air chamber corresponding to a head and an air chamber corresponding to a body portion .

In the outer hood structure for a vehicle connecting portion according to the present invention, it is preferable that the space between the air chamber of the outer hood forming member and the covering rubber sheet is filled with a sponge material .

  According to the outer hood structure for a vehicle connecting portion of the present invention, it is effectively attached to a connecting portion of a high-speed railway vehicle that exceeds 270 km / hour, thereby effectively reducing noise and running resistance at high speed. In addition to excellent displacement absorptivity, it is possible to facilitate the disconnection of the vehicle connecting portion in maintenance and the like, to reduce the weight of parts due to high-speed running, and to reduce the mounting space of the vehicle.

Hereinafter, the present invention will be specifically described with reference to the drawings.
FIG. 1 shows a cross-sectional structure when a vehicle connecting portion outer hood structure 1 according to an embodiment of the present invention is mounted on a connecting portion of a railway vehicle. FIG. 2 is a perspective view thereof. As shown in FIG. 1, a pair of outer hood forming members 2 as the main body of the outer hood for the vehicle connection portion are mounted on the rail vehicle connection surfaces 10 and 11 facing each other at the connection portion between the front and rear rail vehicles A and B. The tips of the outer hood forming members 2 are in contact with each other. Thereby, a vehicle connection part is covered.

  The outer hood forming member 2 includes an air chamber 3 and a covering rubber sheet 4 that covers the air chamber 3 and is stretched on the connecting surfaces 10 and 11 of the vehicle edge. As shown in FIG. 1, the air chamber 3 is formed of a substantially cylindrical air chamber having a daruma-shaped cross section, and a partition wall 5 is formed at the boundary between the daruma-shaped head portion 3A and the trunk portion 3B. A plurality of air holes 6 having appropriate dimensions are formed in the partition wall 5, and the head portion 3A is also filled with air by filling the body portion 3B with air. The shape stability of the outer hood forming member 2 can be maintained satisfactorily by making the cross section of the air chamber 3 into a daruma shape as illustrated.

  The air chamber 3 is made of a rubber elastic body, an airtight bag such as a rubberized cloth, a resin processed cloth or the like, and includes an air supply / exhaust valve (not shown), and is formed to be inflatable and contractable by remote operation. The air chamber 3 can be a single cylindrical air chamber along the width direction of the vehicle connection surfaces 10 and 11, but may be divided into a plurality of portions in the width direction.

  The covering rubber sheet 4 covering the air chamber 3 and stretched on the connecting surfaces 10 and 11 at the vehicle edge is lightly attached by being directly attached to the brackets 12 respectively disposed on the connecting surfaces 10 and 11 at the vehicle edge. Can be achieved. In the preferred example shown in the drawing, the bracket 12 is disposed on the connecting surfaces 10 and 11 of the vehicle edge portion with the same length as the width of the outer hood forming member 2. A pair of long brackets 12 extending in parallel with each other are provided with screw holes at appropriate intervals in the width direction, and the end of the covering rubber sheet 4 extends along the bracket 12. A bolt 8 is fixed to a screw hole of the bracket 12 while being wound around the winding tool 7. Therefore, a through-hole for the bolt 8 is formed in the end portion of the covering rubber sheet 4 where the bolt 8 is screwed and the winding tool 7.

  Moreover, it is preferable to provide the protective sheet 9 between the air chamber 3 and the vehicle connection surfaces 10 and 11 as shown in order to suppress the movement of the air chamber 3. The protection sheet 9 is straddled so as to wrap the air chamber 3 between a pair of long brackets 12. The protective sheet 9 can be a sheet material similar to the coated rubber sheet 4.

  Furthermore, in order to prevent the protective sheet 9 from fluttering during high-speed traveling, the space between the air chamber 3 and the covering rubber sheet 4 (portion indicated by hatching) may be filled with a sponge material.

3 and 4 show the cross-sectional structure of the outer hood forming member of the outer hood structure for the vehicle connecting portion of the reference example . The air chamber of one outer hood forming member 22 shown in FIG. 3 is composed of two cylindrical air chambers 23B having the same diameter and a cylindrical air chamber 23A having a larger diameter than these. The cross-sectional shape is kamaboko. The covering rubber sheet 24 that covers the air chambers 23A and 23B and is stretched on the connection surface of the vehicle edge, and the tensioning means thereof can be the same as those of the embodiment shown in FIG.

  The air chamber of the outer hood forming member 32 shown in FIG. 4 is composed of two cylindrical air chambers 33 having the same diameter, and the cross-sectional shape of one outer hood forming member 32 is according to the embodiment shown in FIG. Instead, it has a kamaboko shape protruding more in the connecting direction. The covering rubber sheet 34 covering the air chamber 33 and extending on the connecting surface of the vehicle edge, and the extending means thereof can be the same as those of the embodiment shown in FIG.

  The example shown in FIGS. 1 and 2 is an example in which the outer hood structure for a vehicle connecting portion of the present invention is applied to only one side of the vehicle, but the main cover is covered so as to cover at least the upper surface and both side surfaces of the connecting portion of the vehicle. Of course, the outer hood structure for the vehicle connecting portion of the invention can be provided.

Hereinafter, a test example of the outer hood structure for a vehicle connecting portion of the present invention will be described.
1 and 2, when air pressure of 10 to 20 kPa is sealed in the air chamber 3 (distance between the vehicles of the connecting portion: 500 mm, one outer hood forming member 2 is connected) The distance from the surface 10 to the abutment surface with respect to the other outer hood forming member 2 is 260 mm), the rigidity at high speed traveling can be secured, and the air chamber 3 is deformed when traveling on the side line (on-site track). I was able to follow the rank.

It is sectional drawing when the outer hood structure for vehicle connection parts which concerns on one embodiment of this invention is mounted | worn with the connection part of a railway vehicle. It is a perspective view of the outer hood structure for vehicle connection parts shown in FIG. It is sectional drawing when the outer hood structure for vehicle connection parts of a reference example is mounted | worn with the connection part of a railway vehicle. It is sectional drawing when the outer hood structure for vehicle connection parts of a reference example is mounted | worn with the connection part of a railway vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Outer hood structure for vehicle connection parts 2 Outer hood formation member 3 Air chamber 3A Head 3B Trunk part 4 Cover rubber sheet 5 Partition 6 Air hole 7 Winding tool 8 Bolt 9 Protective sheet 10, 11 Railroad vehicle connection surface 12 Bracket 22 Outer hood forming members 23A, 23B Cylindrical air chamber 24 Covered rubber sheet 32 Outer hood forming member 33 Cylindrical air chamber 34 Covered rubber sheet A, B Railway vehicle

Claims (2)

In the outer hood structure for a vehicle connection part mounted on the edge of the railway vehicle facing each other at the connection part of the railway vehicle,
Abuts an outer hood member pair Urn covering the connecting portion of the railway vehicle to each other,
The outer hood forming member includes an air chamber, and a coated rubber sheet that covers the air chamber and is stretched on a connecting surface of an edge of a railway vehicle , and
The air chamber of the outer hood forming member is composed of a substantially cylindrical air chamber having a daruma-shaped outer shape by connecting two air chambers having different circumferential lengths in cross section, and the head in the daruma-shaped air chamber An outer hood structure for a vehicle connecting portion , wherein an air hole is formed in a partition wall formed at a boundary between an air chamber corresponding to the above and an air chamber corresponding to a trunk portion . The outer hood structure for a vehicle connecting portion according to claim 1 , wherein a sponge material is filled in a space between the air chamber of the outer hood forming member and the covering rubber sheet .

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