JPH0210645B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a wire duct structure for a vehicle, and particularly to a wire duct for a vehicle that is suitable for being installed under the underframe of a railway vehicle, that is, under the floor. .

[Background of the invention]

Figure 1 shows a conventional vehicle underfloor arrangement. In conventional piping, a hole is made in the cross beam 1 of the underframe, a tube support 2 is attached to the cross beam 1 of the underframe, the air pipe 3 is passed through the hole, and is fixed with a tube holder 4. A duct 5 is provided on the lower surface of the cross beam 1 of the underframe and the electric wires are routed therein.
The structure of this duct 5 is such that it has sufficient rigidity to support the wiring and is suspended from the lower surface of the underframe cross beam 1 with bolts 7, and the wiring 10 is suspended on the bottom plate 6.
A method is often used in which the duct 5 is mounted on the duct 5 and attached to the lower part of the duct 5 with a mounting bolt 7.

This conventional method cannot be applied to vehicles with limited underfloor installation space, is heavy, has a large number of parts, and requires a large number of installation man-hours.

[Purpose of the invention]

An object of the present invention is to provide an electric wire duct structure for a vehicle that can simplify the structure of the electric wire duct itself and the underframe cross beam, and simplify the work of installing piping and wiring under the floor.

[Summary of the invention]

The present invention comprises a wiring storage space made of integrally molded plate material, and includes a duct which is arranged to extend in the longitudinal direction of the vehicle body through the lower surface of the cross beam of the underframe, and which is installed in the width direction of the outer peripheral part of the duct and has both ends connected to each other. The band is capable of being fixed to the cross beam of the underframe, and has a band at the bottom thereof that supports a pipe extending in the longitudinal direction of the vehicle body.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIGS. 2 and 3. The duct 5 is constructed by integrally molding a plate material having the minimum rigidity necessary to accommodate the wiring 10, and the plate thickness is thin to reduce the overall weight and simplify the structure. Additionally, a lid 9 is provided on the top if necessary. The duct 5 is suspended from the lower surface of the underframe cross beam 1 by means of a band 8 and a mounting bolt 7. This band 8 is made to have sufficient strength to withstand the weight of the wiring inside the duct 5.

A bolt 11, which is a support for the pipe 10, is attached to the band 8 so as to protrude downward. This bolt 11 is a headless welded countersunk bolt and does not affect the upper duct 5. This band 8 is arranged in the width direction of the outer circumference of the duct 5 to fix the duct 5, and the air piping 3 is arranged on the lower surface of the band 8, and the piping 3 is fixed with the bolt 11 via the pipe holder 4. do.

According to such a configuration, the wiring 10 and the piping 3 arranged in the longitudinal direction of the vehicle body are connected to the duct 5.
By using the band 8, the arrangement can be concentrated in one place, and the structure of the underframe itself and the underfloor portion can be simplified without providing a through hole in the underframe cross beam 1. In addition, since the duct 5 is integrally formed from a thin plate material, the structure is simple, and
Lighter weight can be achieved.

Next, since the band 8 not only supports the duct 5 but also serves as a tube support, the number of parts can be reduced. Also,
Since the pipe 3 is passed through the lower part of the duct 5, the underfloor installation space can be narrowed, and since the pipe 3 does not penetrate the underframe cross beam 1, the installation work can be simplified. Furthermore, it is possible to outwork piping work.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to simplify the structure of the electric wire duct itself and the cross beam of the underframe, and to simplify the work of installing piping and wiring under the floor.

[Brief explanation of drawings]

FIG. 1 is a front view showing a conventional train underfloor installation procedure, FIG. 2 is a front view of an underfloor duct structure according to the present invention, and FIG. 3 is a side view of FIG. 2. 1... Frame cross beam, 2... Pipe support, 3... Air piping, 4... Pipe holder, 5... Duct, 6... Bottom plate,
7...Mounting bolt, 8...Band, 9...Lid,
10...Wiring, 11...Volt.

Claims (1)

[Claims] 1. A wiring storage space is constructed from an integrally formed plate material, and a duct is placed on the underside of the underframe cross beam to extend in the longitudinal direction of the vehicle body, and a duct is installed in the width direction of the outer periphery of the duct, and both ends are connected to the underframe cross beam. 1. An electric wire duct structure for a vehicle, characterized in that the wire duct structure is comprised of a band that can be fixed to the vehicle body and has a pipe support tool installed at the lower part thereof extending in the longitudinal direction of the vehicle body.