JPS6246612Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a railway vehicle body, and more particularly to a railway vehicle body having an outer panel made of stainless steel plate, aluminum plate, or the like.

For railway vehicle bodies that have outer panels made of stainless steel plates, aluminum plates, etc., the outer panels are easily altered by heat, so when manufacturing them, welding methods that have low heat input to the welded parts are used. Reduce the number of locations as much as possible. Care must be taken to ensure that thermal deformation due to welding is eliminated locally as much as possible.

On the other hand, the vehicle body is required to have high strength and rigidity.

The present invention proposes a railway vehicle body that can meet the above requirements.

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a side structure constituting a side wall of a car body of a railway vehicle, and this side structure 1 includes a side column 2 and a side outer plate 3 fixed to the outside thereof, as is well known. It is composed of. As is known, the lower edge of the side outer plate 3 of the side structure 1 is fixed to a side beam (not shown) in the longitudinal direction of the vehicle body. Note that the side outer plate 3 is made of, for example, a stainless steel plate or an aluminum plate. An upper stringer 4 is fixed to the inner side of the upper edge of the side outer plate 3.

The side outer plate 3 is bent at a right angle toward the inside of the vehicle body at its upper end to form a bent portion 3a, and its tip is further bent downward to form a hanging portion 3b.
The upper stringer 4 includes a vertical fixed part 4a fixed to the inside of the side outer plate 3, an intermediate horizontal part 4b extending horizontally inward from its upper end, and an upper longitudinal part 4b bent upward from the intermediate horizontal part 4b. vertical portion 4c and vertical portion 4c
This is a shape member that is integrally formed with an upper horizontal portion 4d that is further bent inward in the horizontal direction. The upper horizontal portion 4d of the upper stringer 4 is fixed in advance by spot welding along the lower surface of the bent portion 3a of the side shell plate 3, and the fixed portion 4a of the upper stringer 4 is also spot welded. It is fixed in advance to the inner surface of the side skin 3, so that the side skin 3 and the upper stringer 4 are preassembled and integrated. The side column 2 is fixed to the inside of the side outer plate 3 by a spot weld 7,
The upper end of the side column contacts the upper stringer 4 and supports it from the inside and from below. The side columns 2 and the upper stringer 4 are fixed together by welding, for example, as shown at 8.

On the other hand, the roof outer panel 10 is constructed using a tartar 11 as is known in the art.
A vertical portion of the angle member 12 is fixed inside the portions 11a which are fixedly installed along the angle member 11a and hang downward on both sides thereof, and the horizontal portions 12a thereof extend inward. The roof outer panel 10 is also made of a stainless steel plate or an aluminum plate like the side outer panel 3. The roof outer panel 10, the rafters 11, and the angle members 12 are integrated in advance to form a roof structure 13. The roof outer panels 10, rafters 11, and angle members 12 described above are fixed to each other by spot welding.

When assembling the vehicle body, the horizontal portion 12a of the angle material of the roof structure 13 assembled in advance is placed on the bent portion 3a of the side outer panel 3, and the vertical portion of the angle member 12 is placed on the bent portion 3a of the side outer panel 3. 3, spot weld 14 through the overlapping part consisting of the hanging part 10a of the roof skin, the vertical part of the angle member 12, the side skin 3, and the fixed part 4a of the stringer 4, and The inner edge of the lateral portion 12a and the upper surface of the bent portion 3a are intermittent fillet welded 15 as shown at 15. As a result, the side structure 1 and the roof structure 13, which have been assembled and prepared in advance, are integrally connected. At this time, the fillet weld 15 can be formed in a downward position.
Workability and reliability are excellent.

FIG. 3 shows a modified embodiment of the present invention. In this embodiment, the bent portion 3a formed by bending the upper part of the side skin plate 3 inward is omitted, and the horizontal portion 1 of the angle member 12 is placed on the upper horizontal portion 4d of the upper stringer 4.
The inner edge of 2a is intermittent fillet welded 15.

According to the present invention described above, the side structures and the roof structure can be assembled in advance and then the two structures can be joined together by welding, which facilitates manufacturing. In addition, since the side structures and the roof structures have their upper stringers and angle members fixed in advance, they have high rigidity and are easy to handle independently. On the other hand, after assembly, a box-shaped space is formed between the upper stringer and the angle member, which increases strength and rigidity.
The thickness of the underframe and side beams below the side outer panels can be made thinner accordingly. In order to connect the side structure and the roof structure, spot welding is used, which has a small amount of heat input and the heat input points are localized, so the adverse effects of heat on the outer panel can be minimized. Even if there is a welded part due to fillet welding, the heat applied to that part is difficult to transfer to the outer panel, and the thermal deformation is absorbed by the parts that connect to the outer panel, so any negative effects on the outer panel can be suppressed here as well. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a longitudinal sectional view of the same, and FIG. 3 is a longitudinal sectional view of a modified embodiment of the invention. 1... Side structure, 2... Side pillar, 3... Side outer plate, 3
a... Upper bent part of side outer plate, 4... Upper longitudinal member,
4a... fixed part, 4b... middle horizontal part, 4c...
Vertical part, 4d... Upper horizontal part, 7... Spot welded part, 8... Welded part, 10... Roof outer plate, 11...
... Taruki, 12... Angle material, 12a... Lateral portion of angle material, 13... Roof structure, 15...
...Intermittent fillet welds.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A side structure that has been integrally assembled in advance by fixing an upper stringer along the upper edge of the side outer panel, and the lower edges of both sides of the roof outer panel. It is constructed by assembling the roof structure, which was previously assembled integrally by fixing angle members along the length of the roof structure, and in the assembled state, the angle members face the upper side of the stringers and a box-shaped space is created between them. The stringers and angles are shaped such that the angles have inwardly projecting transverse portions, the inner edges of the transverse portions being welded to the upper sides of said stringers. A railway vehicle body in which the lower edges of both sides of the roof skin and the longitudinal extension of the angle member are in contact with the outside of the stringer through the side skin, and these four parts are joined by spot welding. 2. The upper edge of the side skin plate is bent inward above the upper stringer to form an upper fold. A vehicle body for a railway vehicle according to claim 1, wherein the inner edge of the lateral portion of the angle member is welded to the upper side of the stringer member through the upper bent portion. 3. The railway vehicle body according to claim 1, wherein the inner edge of the lateral portion of the angle member is directly welded to the upper surface of the stringer member. 4 The longitudinal member has a longitudinally fixed part fixed to the inside of the side skin, an intermediate horizontal part bent horizontally inward from its upper end, and a vertical part bent upward from the inner end of the intermediate horizontal part. and an upper horizontal part that is further horizontally bent inward from the upper end of the railway vehicle body according to any one of claims 1 to 3 of the utility model registration claims. .