JPH04244488A - Mounting part structure for mad guard - Google Patents

Abstract

PURPOSE:To reduce the number of parts and the number of assembly processes and to reduce a cost. CONSTITUTION:A mud guard 3 comprises a mud guard body 10 overlapped with the side edge of a panel flange 4 and a tongueform grommet nut 11 formed of rigid resin. The grommet 11 is folded to the back of the panel flange 4 to nip the panel flange 4 by means of the folded grommet. A tapping screw 9 inserted through the mad guard body 10 is fastened against the grommet nut 11.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a mudguard that protects a vehicle body from chips flying toward the rear of an automobile tire.

0002

2. Description of the Related Art Some automobiles have a mudguard attached to the rear side of a wheel arch.

An example of this will be explained with reference to FIGS. 4 to 6.
Mudguards 3 are attached to the front and rear wheel arch portions 2 of an automobile 1, respectively.

[0004] To explain specifically the mudguard 3 of the rear wheel arch portion 2, the mudguard 3 is attached to a panel flange 4 at the rear edge of the wheel arch portion 2.

[0005] The mudguard 3 is molded from resin and is formed into a substantially L-shape along the edge of the panel flange 4 of the wheel arch portion 2, and the outer edge is provided with a flange portion 5 that wraps around to the outer side of the vehicle body. .

[0006] The inner edge of the mudguard 3 has a long hole 6 at the top.
A round hole 7 is formed at the bottom of each hole, and these long holes 6 and round holes 7
A grommet nut 7 made of metal and having a U-shaped cross section is attached to the inner edge of the panel flange 4 corresponding to the panel flange 4 by inserting the panel flange 4, and a tapping screw 9 is tightened into the attachment hole 8 of the grommet nut 7. It has become.

[0007] This similar structure is, for example,
It is shown in the No. 314 publication.

[0008]

[Problems to be Solved by the Invention] However, in the conventional mudguard mounting structure described above, since the grommet nut 7 is required as a separate part, the number of parts and assembly man-hours increase, leading to an increase in cost. be.

[0009] Accordingly, the present invention provides a mudguard mounting structure that can reduce the number of parts and the number of assembly steps.

0010

[Means for solving the problem] In the mounting structure of the mudguard that is attached to the panel flange on the rear side edge of the wheel arch, the mounting edge of the mudguard body that overlaps the side edge of the panel flange is attached to the back side of the panel flange. A bendable tongue-shaped grommet nut is integrally molded, a fastener is tightened to the grommet nut, and a panel flange is inserted and fixed between the mudguard body and the grommet nut.

[0011]

[Operation] The mounting edge of the mudguard body overlaps the side edge of the panel flange, the tongue-shaped grommet nut attached to the mudguard body is bent to the back side of the panel flange, and the fastener inserted from the mounting edge of the mudguard body is attached to the grommet. Attach the mudguard to the panel flange by tightening the nuts.

0012

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 3 with reference to FIG. 4.

The mudguard 3 is attached to the front and rear wheel arch portions 2 of the automobile 1, and as in the prior art, the rear mudguard 3 will be explained as an example.

The rear mudguard 3 is attached to a panel flange 4 on the rear edge of the wheel arch portion 2, and is composed of a mudguard body 10 and a tongue-shaped grommet nut 11.

[0015] The mudguard main body 10 is made of TPE (Thermal
mo Plastics Elastomer, hardness 9
It is made of soft resin such as 0° (JIS-A), and has an insert bracket 12 built into the mounting part, along the edge of the panel flange 4 of the wheel arch 2, approximately L
It is shaped like a letter.

A flange portion 5 that wraps around to the outside of the vehicle body is formed on the outer edge of the mudguard body 10, and a long hole of an insert bracket 12 is formed at the upper part of the inner edge (mounting edge) of the mudguard body 10, which is exposed by the escape hole 6a. Similarly, round holes 7 of the insert bracket 12 are formed in the lower part of the insert bracket 12 and exposed through escape holes 7a, and are aligned with the respective mounting holes 8 formed in the panel flange 4.

On the mounting edge of the mudguard main body 10, a tongue-shaped grommet nut 11 is formed integrally with the mudguard main body 10 at a position corresponding to the long hole 6 and the round hole 7 by double injection molding.

The grommet nut 11 has a nut portion 11C formed on a base portion 11A for preventing slippage via a flexible portion 11B, and is molded from nylon or the like having a harder hardness than the mudguard main body 10 (hardness 100°). , is bent on the back side of the panel flange 4, and the panel flange 4 is inserted into the panel flange 4 so that a tapping screw 9 serving as a fastener is tightened.

According to the mounting structure of the above embodiment, since the mudguard main body 10 and the grommet nut 11 are integrally molded, the number of parts is reduced compared to the conventional structure in which the grommet nut 11 is used as a separate component. Assembling man-hours are reduced and costs can be reduced.

Furthermore, since the nut portion 11C of the grommet nut 11 is bent to the back side of the panel flange 4 by the flexible portion 11B, by slightly changing the bending position of the flexible portion 11B, the plate It can also be commonly used for panel flanges 4 having slightly different thicknesses.

[0021] By tightening the tapping screw 9 to the hard resin nut portion 11C, the tapping screw 9 has good bite, and therefore the attachment reliability can be further improved.

Note that the present invention is not limited to the above-mentioned embodiment, and as shown in FIG. An insert female thread 12 may be cast into the nut portion 11C of the embodiment.

[0023] Also in this embodiment, the number of parts and the number of assembly steps are reduced, and the installation reliability can be further improved.

[0024]

[Effects of the Invention] As explained above, according to the present invention, since the mudguard main body and the grommet nut are integrally molded, the number of parts and assembly man-hours are reduced compared to the conventional method which required the grommet nut separately. , it is possible to reduce costs.

[0025] Also, since the structure is such that the grommet nut is bent to the back side of the panel flange to tighten the fastener,
It has the advantage that it can be commonly used for panel flanges with slightly different plate thicknesses.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a first embodiment of the invention.

FIG. 2 is a sectional view taken along line AA in FIG. 1;

FIG. 3 is a sectional view corresponding to FIG. 2 of another embodiment.

FIG. 4 is a partial perspective view of the automobile.

FIG. 5 is a perspective view of the prior art.

FIG. 6 is a cross-sectional view taken along line BB in FIG. 5;

[Explanation of symbols]

2...Wheel arch part 3...Mudguard 4...Panel flange 9...Tapping screw (fastener) 10...Mudguard body 11...Grommet nut

Claims (1)

[Claims] Claim 1: In the mounting structure of a mudguard that is attached to a panel flange on the rear side edge of a wheel arch, the mounting edge of the mudguard body that overlaps the side edge of the panel flange has a tongue that is bent on the back side of the panel flange. A mudguard mounting structure characterized by integrally molding a shaped grommet nut, tightening a fastener to the grommet nut, and inserting and fixing a panel flange between the mudguard body and the grommet nut.