JP2607728Y2 - Railcar structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a structure of a railway vehicle, and relates to a carbon fiber reinforced plastic (hereinafter referred to as CFRP).
A rigid and airtight connection is achieved between the body part formed by bonding the main body part and the outer edge part made of metal material formed on the outer periphery of this main body part in advance, and the body part made of another metal material. However, the weight is reduced by applying a resin material to the structure.

[0002]

2. Description of the Related Art Conventionally, there is an example in which a resin material is used for a part of a vehicle body, but there is almost no example in which a resin material is used for a main structural part (structure) of the vehicle body. This is the structure part made of resin material,
This is because there is no method for easily performing a rigid or airtight connection with other structural parts. As a result, the current structure is almost entirely made of metal, and the connection is almost always made by welding between metals.

[0003]

[Problems to be solved by the invention] According to the conventional technology,
The structure made of a resin material and another structure are mechanically connected by bolts or the like and / or bonded. However, mechanical coupling has problems in increasing the number of manufacturing steps due to co-processing of through holes and difficulty in hermetic structure, and adhesion is difficult to control at a can manufacturing site that assembles large parts such as a structural assembly factory. . For this reason, conventionally, the resin material is not used as a main structural member of the vehicle body, but merely used as a casing (casing). Until a rigid joining method was found, it was not effectively used as a strength member of a vehicle.

[0004]

In the present invention, a main body (3, 11) as a roof block (2) and a frontal block (10) is formed by CFRP, and the main body (3, 11) is formed by CFRP. The outer periphery (4, 4) made of a metal material
12) are bonded in advance to form the outer edges (4, 1).
2) is welded to a vehicle structure (5, 13) made of a metal material.

[0005]

In the railway vehicle structure of the present invention having the above-mentioned structure, a main part (roof block, front block) as a part of the railway vehicle structure is made of CFRP which cannot be welded to a metal material. An outer edge made of a metal material is bonded to the outer periphery of the main body, which itself has mechanical strength, by adhesive bonding in advance, and this outer edge is welded to a metal material portion of a vehicle structure.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 shows a roof structure which is a part of a structure 1 of a railway vehicle.
Roof block 2 and central main part 3 made of CFRP
And an outer edge portion 4 made of an aluminum alloy as a metal material formed on the outer periphery of the main portion 3, and the main portion 3 and the outer edge portion 4 are bonded and bonded in advance,
The arc welding and airtight welding are performed on the vehicle structure 5 made of a metal material, which is a metal material, in contact with the outer edge portion 4 by welding.

FIGS. 2 to 5 are enlarged sectional views showing how the roof block 2 shown in FIG. 1 is attached to a vehicle structure 5. In these figures, FIG. 2 shows a longitudinal direction (a line direction) of the structure. FIG. 3) shows a state before the joining, and FIG. 3 shows a state after the joining.

FIG. 3 is a view showing a state before joining as viewed in a direction (sleeving direction) orthogonal to the longitudinal direction of the structure, and FIG. 5 shows a state after joining. 3 and 5, the outer edge 4 of the roof block 2 is arc-welded and hermetically welded to the structure 5 and the welded portion 8 at the welded portion 8, and arc-welded at the welded portion 9.

FIG. 6 shows an example in which the present invention is applied to a frontal structure of the structure 1.
1 is made of CFRP, and the outer edge 12 is made of a metal material such as an aluminum alloy. The main body 11 and the outer edge 12 are bonded and bonded in advance, and the bonding mode is the same as that shown in FIG.

The outer edge portion 12 of the frontal block 10 is welded to a structure 13 made of a metallic material, for example, an aluminum alloy, of a vehicle in contact therewith. This example shows that a resin material that can easily realize a complicated shape can be used for a frontal structure of a high-speed vehicle having a complicated shape.

The roof block 2 allows mounting of equipment such as a pantograph and a ventilation device on the upper surface of the roof of the vehicle, and the frontal block 10 includes interior parts such as a driver's seat and a driver's cab of the vehicle in its internal space. It is configured appropriately.

[0012]

[Effect of the Invention] According to the invention having the above-described structure,
The following practical effects can be obtained. That is, CF
An outer edge made of a metal material is bonded in advance around a main body made of RP and having mechanical strength itself,
This and the structure of the vehicle can be joined by welding that is rigid and easy to form an airtight structure. The main part made of CFRP and the outer edge made of the surrounding metal material can be joined by bonding in a place different from the canning site in advance, so that quality control is easy. Since the connection between the structures is performed by welding a metal material, the work is easy and the number of manufacturing steps is small. The roof block makes it possible to mount equipment such as a pantograph and a ventilation device on the upper surface of the roof of the vehicle, and the frontal block can use the internal space of the vehicle as a space for using structures such as equipment.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a state in which a roof block as a structure is connected to a structure of a vehicle as one embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing a state before joining to a structure of a vehicle, as viewed in a longitudinal direction of the structure in the roof block.

FIG. 3 is an enlarged sectional view showing a state after the parts shown in FIG. 2 are combined.

FIG. 4 is an enlarged cross-sectional view of the roof block, as viewed in a direction perpendicular to the longitudinal direction, showing a state before joining to a structure of a vehicle.

FIG. 5 is an enlarged sectional view showing a state after the parts shown in FIG. 4 are combined.

FIG. 6 is a perspective view showing an example in which the present invention is applied to blocks constituting a frontal structure of the structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Structure 2 Roof block (structure) 3 Main part 4 Outer edge 5 Other structures 10 Frontal block (structure) 11 Main part 12 Outer edge 13 Other structures

Continuing on the front page (72) Ryosuke Furuta 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company (72) Koji Mutoh 1-6-5 Marunouchi, Chiyoda-ku, Tokyo East Japan Railway Company shares In-company (72) Inventor Shigeki Matsuoka 1 Kamariya-cho, Kanazawa-ku, Yokohama-shi, Kanagawa Prefecture Tokyu Vehicle Manufacturing Co., Ltd. Headquarters plant (56) References JP-A-64-78968 (JP, A) JP, A) JP-A-51-120515 (JP, A) JP-A-61-117774 (JP, U) JP-A-55-139951 (JP, U) JP-A-63-141070 (JP, U) 62-187966 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B61D 17/04

Claims (1)

(57) [Scope of request for utility model registration] 1. A roof block (2), a frontal block (1)
The main part (3, 11) as 0) is formed of CFRP,
The outer periphery of these main parts (3, 11) made of metal material
The edges (4, 12) are pre-adhesive bonded and these outer edges
The part (4, 12) is made of a vehicle body (5, 1
3) A railway vehicle structure formed by welding.