JPS6131528Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a mounting structure for attaching an automobile bumper to a mounting stay of a vehicle body.

Conventionally, when attaching an automobile bumper to a vehicle body via a stay, as shown in FIG. Insert the bolt 14 into the mounting hole 13 and attach the bumper 10.
and the stay 12 were connected together by bolts 14 and nuts 15.

However, in such a case, a mounting hole 11 must be formed in the bumper 10, and the bumper 10 must be provided with a mounting hole 11.
Processing after molding is required, making the processing work complicated. For this reason, as shown in FIG.
The disadvantage is that the workability of joining is difficult.

Furthermore, a mounting structure as described in Publication of Utility Model Publication No. 1973-31502 is also provided, but in this case, the mounting tool and bolt are constructed separately, so when installing the stabilizer etc. It is necessary to hold the bolts from above and below while attaching the bolts while positioning the fixtures, etc. relative to the mounting base. This makes the installation work complicated and difficult.

This idea was devised in view of the above-mentioned conventional problems, and the opening end of the fixture body, which is bent into a substantially U-shape, is expanded outward, and the fixture body is In this method, bolts that pass through both mounting pieces facing each other in an intersecting manner are fixed in an upright position, and the tips of the bolts are inserted into the mounting holes drilled in the front end of the mounting base, and the mounting pieces are attached with nuts. The main body is temporarily assembled, and on the other hand, a flange having a substantially U-shaped notch hole at the front end is formed protruding from the inner surface of the bumper, and the flange is held between the two mounting pieces, and the bolt is inserted into the notch hole. The purpose of this invention is to improve both the processability of the bumper and the workability of installing the bumper by engaging the bumper and fixing the bumper to the mounting base by tightening the nuts together.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings, in which the same parts as those in the conventional structure are denoted by the same reference numerals.

FIG. 3 shows a perspective view of a fixture provided for the present invention.

The fixture 1 consists of a fixture body 2 and a bolt 7.

The fixture main body 2 is bent into a substantially U-shape,
A bolt hole 5 is bored in the lower mounting piece 3, and a bolt penetration part 6 is opened at a corresponding location in the upper mounting piece 4.

The bolt 7 has a bolt hole 5 drilled in the lower mounting piece 3 and a bolt penetration part 6 opened in the upper mounting piece 4.
The screw portion 7a is inserted through the head 7b.
protrudes outside of the lower mounting piece 3, is fixed by welding or other means, and is erected on the fixture main body 2 so as to intersect with the opposing upper and lower mounting pieces 4 and 3.

The connection of the bolt 7 to the fixture body 2 is as follows:
As shown in Fig. 4, bolts 7 with a diameter slightly larger than the diameter of the bolt holes are firmly pushed into the bolt holes drilled in the lower mounting piece 3, or fixed by caulking or adhesive. stick. In other words, it is sufficient that the bolt 7 is fixed so that it does not rotate when the nut 8 is tightened later, and the fixing method is not critical.

The bolt penetrating portion 6 has a notch hole 6a having a diameter larger than the outer diameter of the bolt threaded portion 7a as shown in FIG.
Alternatively, it may be formed into a slit 6b as shown in FIG.

When using the above-mentioned fixture 1, as shown in FIG. Temporarily assemble it.

Next, as shown in FIG. 6, the approximately U-shaped notch holes 18 formed in the flanges 16, 16 of the bumper 10 are arranged so as to straddle the bolts 7, and between the mounting pieces 3, 4 of the fixtures 1, 1. Insert the flanges 16, 16, tighten the bolts 7 and nuts 8, and attach the bumper 10 and stay 12.
and are connected via fixtures 1, 1.

As a result of the above configuration, the workability of mating members such as the flange 16 of the bumper 10 is facilitated.

In addition, the mounting tool 1, bolts 7, and nuts 8 are attached to cover portions 10a and 10 provided at the outer end of the bumper 10, which is a mating member, and covering the flanges 16, 16.
Since it is shielded by 0a and is not exposed to the outside, the appearance quality is improved.

Furthermore, the assembly of the bumper 10, which is a mating member, is as follows:
The flanges 16, 16 of the bumper 10 are inserted into the fixtures 1, 1 which have been temporarily assembled to the stay 12 by connecting the bolts 7 and nuts 8 in advance, and the bolts 7 and nuts 8 are tightened. Improves assembly workability.

Furthermore, as shown in FIGS. 3, 4, and 7, the mounting tool 1 can be formed so that the ends 3a, 4a of the mounting pieces 3, 4 are expanded outwardly, and in such a case, the mating member can be inserted into the mounting tool 1. This has the effect of making it easier.

Further, as shown in FIG. 7, the mounting tool 1 also has locking claws 3 on the inner surfaces of the mounting pieces 3 and 4 to prevent the mating member from coming off.
b, 4b can be formed to protrude toward the opposing mounting pieces, and in such a case, the locking claws 3b, 4b
When the bolt 7 and nut 8 are tightened, they bite into the mating member, which has the effect of making the locking of both more reliable.

Further, as shown in FIG. 8, the fixture 1 can be constructed by bending a part of the stay 12 into a substantially U-shape. In this case, the number of parts is reduced;
Moreover, the assembling workability is further improved, and the assembling of the two parts becomes more reliable.

Furthermore, the fixture main body 2, as shown in FIG.
A substantially U-shaped leaf spring 19 can be interposed between the stay 12 and the flat washer 9, and in this case, the workability and assembly workability are further improved.

As described above, according to the present invention, the workability of attaching the bumper to the mounting base is improved, and in particular, since the bolts passing through both opposing mounting pieces in an intersecting manner are erected and fixed to the mounting body, When attaching the fixture body and the bumper to the mounting base, even if the nut at the tip of the bolt is tightened with a strong torque, the bolt and the fixture body do not rotate unnecessarily, making the installation work extremely easy.

Furthermore, since the notch hole formed in the flange of the bumper is U-shaped, it can be formed at the same time as the bumper is molded, which has an excellent practical effect of simplifying the manufacturing work.

Further, since the opening end of the fixture main body is expanded outwardly, it becomes easy to engage the flange with the fixture main body.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing a conventional automobile bumper mounting structure, Fig. 2 is a perspective view showing a different conventional bumper, Fig. 3 is a perspective view of a mounting tool used in this invention, and Fig. 4 is a sectional view showing a conventional bumper mounting structure. 5 is a perspective view showing a bumper mounting structure of this invention, FIG. 6 is a perspective view of a bumper used in this invention, and FIG. 7 is a perspective view of a different mounting structure used in this invention. The cross-sectional view and FIGS. 8 and 9 are perspective views of further different fixtures used in this invention. 1...Mounting tool, 2...Mounting tool body, 3...Lower mounting piece, 4...Upper mounting piece, 5...Bolt hole, 6
... Bolt penetration part, 7 ... Bolt, 8 ... Nut, 10 ... Bumper, 12 ... Stay (mounting base), 13 ... Mounting hole, 16 ... Flange, 18
...notch hole.

Claims (1)

[Scope of utility model registration request] The opening end portion of the fixture body, which is bent into a substantially U-shape, is expanded outward, and a bolt is erected on the fixture body, passing through both opposing mounting pieces in an intersecting manner. Then, the tip of the bolt is inserted into the mounting hole drilled in the front end of the mounting base, and the mounting body is temporarily assembled with a nut. A flange having a U-shaped cutout hole was formed protrudingly, the flange was sandwiched between the two mounting pieces, the bolt was engaged with the cutout hole, and the bumper was fixed to the mounting base by tightening the nuts together. An automobile bumper mounting structure characterized by the following.