JPS6035828Y2 - Piping fixing structure in automobiles - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a structure for fixing pipes such as twill pipes and brake pipes in automobiles.

Conventionally, when fixing piping in a car, pipes such as twill pipes and brake pipes are bound together using a piping pipe holder and then piping is performed.
In addition to welding a nut to the floor panel, the pipe was fitted into a synthetic resin pipe holder separate from that used for piping, and the pipe holder was secured to the floor panel by tightening the pipe holder to the above-mentioned nut with a bolt via a mounting bracket. (For example, Utility Model Application No. 53-120995).

However, such a fixed structure requires welding a small nut to a large member such as a floor panel, which increases the number of man-hours and requires skill for assembly. Since a separate pipe holder for piping is required, there is a problem in that the number of parts increases and the cost increases.

Therefore, in order to deal with this problem, we have developed a synthetic resin pipe fitting that includes a pipe holder part and a fastener part that is press-fitted into a hole provided in the floor panel. After fitting the pipe into the holder part and piping, attach the pipe fitting by press-fitting the fastener part into the hole in the floor panel, and fix the band-shaped member to the pipe holder part with a tapping screw to prevent the pipe from falling off. However, in this proposal, the pipe fitted into the pipe holder is held only by fitting into the pipe holder until the piping is fixed. Because of this, it may easily fall off when external force is applied during installation, and even when fixing is complete, the band member tends to bend into a curved shape due to tightening of the tapping screw, so
The belt-like member at the end of the pipe holder may not be sufficiently tightened, and the pipe may fall off.

The present invention has been made in view of these points, and includes a pipe fitting having a pipe holder part and a fastener part, and a belt-like member that covers the pipe holder part and prevents the pipe from falling off, which is integrally formed with the pipe fitting. At the same time, it is an object of the present invention to provide a pipe fixing structure for an automobile in which assembly work can be easily and reliably performed by covering the pipe holder portion using the above-mentioned band-shaped member.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

In FIG. 1, 1 is a floor panel of an automobile,
The floor panel 1 includes side frames 2, 2 extending in the longitudinal direction of the vehicle body and cross members 3, 3 extending in the vehicle width direction.
are provided for each.

Reference numeral 4 denotes piping such as a twist pipe or a brake pipe that extends in the longitudinal direction of the vehicle body, and the piping 4 is attached to the lower surface of the floor panel 1 via a pipe fitting 5.

That is, as shown in detail in FIGS. 2 and 3, the pipe fitting 5 is made of synthetic resin such as nylon, and has a fastener portion 7 on its top surface that is press-fitted into a hole 6 provided in the floor panel 1. , and has a plurality of grooves 9, 9 . The fastener part 7 and the pipe holder part 10 are integrally formed.

A tapping screw 11 is installed in the center of the pipe fitting 5.
A through hole 12 into which the pipe fitting 5 is screwed is provided to pass through the fastener part 7 and the pipe holder part 10, and a bendable band member 13 is integrated with the pipe fitting 5 at the left end of the lower surface of the pipe fitting 5. is formed.

The band member 13 has a length approximately twice the width of the pipe fitting 5, and the grooves 9, 9 of the pipe holder portion 10 are located near the tip thereof. It has an engagement hole 15 that extends to cover the outer peripheral surface of the base end portion of the fastener portion 7 and is engaged with the retaining groove 14, and a predetermined hole is provided around the engagement hole 15 in the outer circumferential direction. It has an annular seal flange 16 that projects outward at a distance, and further has an insertion hole 17 near the center at a position corresponding to the through hole 12, into which the tapping screw 11 is inserted.

In addition, 18 is a slit provided on the fastener part 7 side of the through hole 12, and the slit 18 causes the fastener part 7 to bulge outward when the tapping screw 11 is screwed into the through hole 12. This is to ensure that the pipe fitting 5 is attached to the floor panel 1.

Next, to describe the installation procedure of the above embodiment, first,
From the bottom of the pipe fitting 5, each pipe 8.8. ... in the groove 9 of the pipe holder part 10. 9. . . , bend the strip member 13 inward and insert it into the grooves 9, 9 . . . . as well as covering the belt-shaped member 1
3 is extended to the upper surface of the pipe fitting 5, and the engagement hole 15 near the tip is engaged with the engagement groove 14 of the fastener part 7 to form the piping 4.

After placing the pipe fitting 5 under the floor panel 1 with the fastener part 7 of the pipe fitting 5 facing the hole 6 of the floor panel 1 for the piping 4 formed in this way, the pipe fitting 5 is
Attachment to the floor panel 1 is performed by pressing upward and fitting the fastener part 7 into the hole 6.

At this time, each pipe 8 fitted into the groove 9 of the pipe holder part 10 is not only held by fitting into the pipe holder part 10, but also the groove 9 of the pipe holder part 10 is covered by the band member 13. Therefore, even if it moves downward in the groove 9 due to an external force, it is supported by the strip member 13 and will not fall out of the groove 9.

In this way, the tapping screw 11 is screwed into the through hole 12 of the pipe fitting 5 attached to the floor panel 1 from below the insertion hole 17 of the strip member 13, and the strip member 13 is brought into close contact with the lower surface of the pipe fitting 5. The fixture 5 is fixed to the floor panel 1 together with the piping 4.

At this time, the sealing flange 16 provided around the engagement hole 15 of the strip member 13 comes into close contact with the lower surface of the floor panel 1 due to the screwing force of the tapping screw 11, so that the hole 6 of the floor panel 1 is sealed and the connection between the fastener part 7 and It is possible to reliably prevent rainwater etc. from entering the interior of the vehicle through the gaps between the two.

As explained above, according to the present invention, a fastener part that is press-fitted into a hole provided in a vehicle body member such as the floor of an automobile, and a pipe holder part that has a plurality of grooves into which pipes are press-fitted are integrally formed, A pipe fitting made of synthetic resin has a fastener part on the top surface and a groove for the pipe holder part on the bottom surface, and has a through hole that passes through the fastener part and the pipe holder part of the pipe fitting and into which a tapping screw is screwed. At the same time, a band-like member is integrally formed at the end of the lower surface of the pipe fitting, and the band-like member has an engagement hole near the tip that extends to cover the groove of the pipe holder part and is engaged with the fastener part. In addition, it has a seal flange provided at a predetermined distance in the outer circumferential direction of the retaining hole, and also has an insertion hole through which a tapping screw is inserted. This can be done without the need for pipe holders or sealing members, and without the need for welding bolts, simplifying the work and reducing costs, as well as preventing external forces from acting during installation. Even in such cases, it is possible to reliably prevent the pipe from falling off, thereby improving work safety.

[Brief explanation of drawings]

The drawings illustrate the embodiment of the present invention, and FIG. 1 is a perspective view showing how it is installed on the floor panel of an automobile, and FIG.
The figure is a sectional view of the pipe fitting, and FIG. 3 is a sectional view showing how the pipe fitting is installed. 1...Floor panel, 2...Side frame, 3...Cross member, 4...
Piping, 5...Pipe fitting, 6...
... Hole, 7 ... Fastener part, 8 ... Pipe, 9 ... Groove, 10 ... Pipe holder part, 11 ...... Tapping screw, 12...
...Through hole, 13...Band-shaped member, 14...
...Engagement groove, 15...Engagement hole, 16...
...Seal flange, 17...Insertion L 1
8-------slit.

Claims (1)

[Scope of utility model registration request] A fastener part that is press-fitted into a hole provided in a vehicle body member such as the floor of an automobile, and a pipe holder part that has a plurality of grooves into which pipes are press-fitted are integrally formed, and the fastener part is on the top surface and the pipe holder part is on the bottom surface. A synthetic resin pipe fitting having a groove is provided with a through hole that passes through the fastener part and pipe holder part of the pipe fitting and into which a tapping screw is screwed, and a through hole is provided at the end of the lower surface of the pipe fitting. A band-shaped member is integrally formed, and the band-shaped member has an engagement hole near the tip portion that extends to cover the groove of the pipe holder portion and is engaged with the fastener portion, and has a predetermined distance in the outer circumferential direction of the engagement hole. 1. A piping fixing structure for an automobile, characterized in that the structure has a seal flange provided at the same position, and further has an insertion hole through which a tapping screw is inserted.