JPS61220964A - Frame structure - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Different Field of the Invention] The present invention relates to an underframe structure, and particularly to an underframe structure for a passenger train.

[Background of the invention]

For example, the underframe structure of a passenger train is 1 Japan Society of Mechanical Engineers, 9
It is known that a cross beam is passed between the side beams and a keystone plate is laid on top of the cross beam, as described in Mechanical Engineering Handbook, revised 5th edition (1967), pages 15-71.

In the second underframe structure, the thickness of each underframe is thick because beams are required, which means that there is not enough space for installing the underfloor equipment, and the number of parts is large, resulting in a large amount of assembly man-hours. There's a problem.

[Purpose of the invention]

An object of the present invention is to provide an underframe structure in which the thickness of the underframe can be made thinner by eliminating the need for cross beams, and the space for installing underfloor equipment can be increased.

[Summary of the invention]

The present invention is characterized in that, in an underframe structure comprising a side beam and a floor support member, a reinforcing plate in which cavities are separated in the width direction and formed in the longitudinal direction is used for the floor support member. , an attempt was made to reduce the thickness of one frame by using a reinforcing plate, which functions as both a conventional cross beam and a keystone plate, as a floor support member.

[Embodiments of the invention]

An uninvented embodiment will be described with reference to FIGS. 1 to 4.

! In the J1 diagram, a pair of side beams 10 passing on both sides are separated in the width direction and have a cavity (9) formed in the longitudinal direction.A reinforcing plate 2 is provided.
1 is installed astride. In this case, the reinforcing plate force is produced as follows.

First, as shown in FIG. 2, concave and convex grooves are alternately formed on a flat plate by a method such as roll forming. Thereafter, it is compressed in the width direction as shown in FIG.

The openings of concave n and convex n are closed. Then this part
As shown in FIG. 3, they are joined by welding or the like. In addition, when joining by welding, it is necessary to consider reducing the amount of heat input by using intermittent welding, for example, from the viewpoint of distortion. The reinforcing plate manufactured in this manner can have a rigidity equivalent to that of the conventionally used cross beams, and therefore the cross beams can be made unnecessary.

In unimplemented examples, the following effects can be obtained.

(11) Since the cross beams can be omitted, the thickness of the underframe can be made thinner, allowing more space for installing underfloor equipment.

(2) Since the cross beams can be omitted, the number of parts can be reduced and the number of man-hours required for erection can be reduced.

[Effects of the Invention] As explained above, the non-invention has the effect that the cross beam can be made unnecessary, so the thickness of the underframe can be made thinner, and the special space for under-floor equipment can be provided.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a six-frame structure according to the present invention, and FIGS. 2 to 11 to 4 are cross-sectional views showing the manufacturing process of the reinforcing plate shown in FIG. 1.

Claims (1)

[Claims] 1. An underframe structure comprising a side beam and a floor support member, characterized in that a reinforcing plate in which cavities are separated in the width direction and formed in the longitudinal direction is used for the floor support member.