JPS6340056Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the side structure of a railway vehicle, and in particular aims to improve the strength of the side structure by improving the reinforcement portion against distortion and buckling of the side skin.

In general, the structure of a railway vehicle is such that side structures are erected on both sides of the platform frame, and a roof is placed on top of them.The side structures and roof are each made of a frame assembled in a lattice pattern and covered with side outer panels such as thin steel plates. It is structured as follows.

The above-mentioned side structure conventionally has a structure as shown in FIG. That is, in the figure, 1 is a side structure, 2 is a side outer plate, 3 and 4 are cross members arranged in the lateral direction of the inner surface of the side outer plate 2 and fixed to the surface by means such as spot welding, 3 is the window part 1 of the side structure 1
The window band 4 in A is a reinforcing material at the base portion 1B of the side structure 1. Reference numeral 5 designates side columns arranged vertically on the inner surface of the side outer plate 2, intersecting with the horizontal members 3 and 4, and fixed to the surface by means such as spot welding. The horizontal members 3, 4 and the side pillars 5 are the side outer panels 2.
It is made up of a member having a substantially U-shaped cross section and having flanges 3a, 4a, and 5a, which serve as the spot welds, respectively, extending in the direction along the inner surface.

In such a side structure 1, initial strain during manufacturing of the side outer plate 2 and buckling of the plate field induced by the initial strain when a load is applied poses a major problem. For this reason,
A reinforcing portion against buckling is provided in a rectangular board area 6 defined by the cross members 3, 4 and the side pillars 5 of the side outer plate 2. As this reinforcing part, reinforcing members 7 and 8 consisting of elongated members having an end face cross-sectional shape as shown in FIGS. 2A and B or FIG. 2C
It is constituted by a reinforcing molded part 9 formed by press-molding the board field 6 itself so as to have an end face cross-sectional shape as shown in FIG.
are conventionally provided in a direction parallel to the cross members 3, 4 or the side pillars 5 in the board yard 6, as shown in FIG.

However, in such a conventional reinforcing structure for buckling of a board shop, the shapes of the two board shops 6A and 6B defined in the board shop 6 are divided by providing reinforcing members 7, 8 or reinforcing molded parts 9. The board area 6A has a rectangular shape and has a small number of such rectangular shapes.
6B has the disadvantage that its strength against buckling is unstable.

In addition, in FIG. 1, 10 is a reinforcing member fixedly provided at the corner of the window, and as shown in FIG. 3, it is approximately L.
It is composed of a letter-shaped flat plate.

When reducing the weight of the side structure 1, this reinforcing member 10 has a structure in which the stress on the board against the operational load is on the order of no problem in terms of strength, but there is considerable stress concentration at the corner of the window 1A. This is provided to alleviate this stress concentration.

Therefore, in view of the above-mentioned conventional situation, the present invention improves the installation direction of the reinforcing part provided in the board area divided by the side members and the side columns, and improves the installation direction of the reinforcement section. The present invention provides a side structure structure for a railway vehicle in which the strength of the side structure is improved by thoroughly reinforcing plates against buckling.

Hereinafter, one embodiment of the present invention will be described based on FIGS. 4 to 7.

In these figures, the same elements as those in FIG. 1 are given the same reference numerals to simplify the explanation.

In Figures 4 and 5, 11, 12 and 1
3 is a reinforcing member and a reinforcing molded part as an embodiment of the reinforcing part according to the present invention.

The reinforcing member 11 shown in FIG.
It is made of a long member having a substantially Z-shaped end cross-sectional shape as shown in FIG. It is disposed along a diagonal line connecting the opposing corners of and is spot welded at one end. The reinforcing member 12 shown in FIG. 5 is a substantially L-shaped member having a substantially Z-shaped end cross-sectional shape as shown in FIG. 6B. It is arranged so that it is on the upper side or the lower side, and is spot welded with one end. The reinforcing molded portion 13 shown in FIG. 4 has a structure in which the board 6 itself is press-molded into a constricted cross shape so as to have a substantially U-shaped end cross-sectional shape as shown in FIG. 6C.

In the above configuration, the reinforcing member 11 shown in FIG. , 6b has a substantially triangular shape, and the fifth
The reinforcing member 12 shown in the figure has its straight portion arranged diagonally with respect to the cross members 3, 4 and the side pillar 5, and
The small board fields 6c to 6e that are divided into sections have a substantially triangular shape.

On the other hand, the straight part of the reinforcing molded part 13 shown in FIG.
~6i also has a substantially triangular shape.

Therefore, the board shop provided with the reinforcing part according to the present invention,
The board field divided into small sections has a substantially triangular shape, and the strength against buckling can be made more stable compared to the conventional rectangular board field partitioned by reinforcing parts. especially,
The reinforcing molded part 13 in FIG. 4 and the reinforcing member 1 in FIG. 5
2 has a large number of partitioned board areas, and the area of each board area is also small, which has a large effect.

Next, in this embodiment, the reinforcing effect is improved by improving the shape of the reinforcing member provided to alleviate the stress concentration applied to the corner of the window of the side structure. .

That is, reference numeral 14 denotes a window corner reinforcing member, which, as shown in FIG. 7, is formed into a shape in which a flange portion 14A projecting approximately perpendicularly to the plate surface is integrally formed at the inner corner of a substantially L-shaped member. The inner corner of the substantially L-shaped member is formed into an arc shape, and the flange portion 14
A is also formed into a curved shape.

This reinforcing member 14 is arranged on the outer surface of the flanges 3a and 5a of the cross member 3 and the side pillar 5 arranged on the inner surface of the side outer panel 2 at the corner of the window, and by spot welding thereto, The reinforcing member 14 and the side outer plate 2 sandwich and fix the flange portions 3a and 5a together.

According to the above-described reinforcing member 14, the reinforcing effect against stress concentration is high because the reinforcing member 14 is not made of a simple flat plate as in the conventional case, but has a structure in which the flange portion 14A is integrally formed at the inner corner.

As explained above, the present invention improves the installation direction of the reinforcing parts provided in the board area divided by the cross members of the side outer panels and the side columns. Since the small-area part to be formed is now formed into a substantially triangular shape instead of the conventional quadrangular shape, the strength against buckling of the board field can be made highly stable, making it a practical design that can improve the strength of the side structure. It is very effective.

[Brief explanation of the drawing]

Figure 1 is a front view showing the conventional side structure structure;
Figures A to C are A-A, B-B in Figure 1, respectively.
3 is a perspective view showing the shape of the window corner reinforcing member applied to the above side structure, and FIGS. 4 and 5 each show an example of the side structure structure according to the present invention. 6A to 6C are cross-sectional views taken along arrows A-A, B-B, and C-C in FIGS. 4 and 5, respectively, and FIG. 7 is a window corner applied to the same side structure. FIG. 3 is a perspective view showing the shape of a reinforcing member. 1... Side structure, 2... Side outer panel, 3... Window band, 4
... Reinforcement material, 5 ... Side pillar, 6 ... Board yard, 6a-6
i... Board field (small area part), 11, 12... Reinforcement member, 13... Reinforcement molded part.

Claims (1)

[Scope of utility model registration request] a side outer plate, cross members arranged in the transverse direction of the inner surface of the side outer plate and fixed to the surface, and cross members arranged in the longitudinal direction of the inner surface of the side outer plate intersecting the cross members and fixed to the surface. In a side structure structure of a railway vehicle comprising a side column and a window section formed by some of the side members and the side column, the side structure is partitioned by the side column and the side column of the side outer plate. The reinforcing portion provided in the rectangular board area is configured to extend in a direction such that the rectangular board area is divided into a plurality of approximately triangular small area portions by the reinforcing portion. The side structure structure of a railway vehicle.