JPS6127738A - Rear bumper structure for automobile - Google Patents

Abstract

PURPOSE:To save labor for mounting a rear bumper and lighten a car body by bending rearward horizontally the upper and lower edges of a rear panel lower to form upper and lower flanges on which a bumper cover is mounted. CONSTITUTION:The upper and lower edges of a rear panel lower 20 are bent horizontally rearward to form upper and lower flanges 20a, 20b for forming a generally U-shaped section. The rear panel lower 20 is connected on the upper flange 20a to a rear floor panel 22 and a rear panel upper 23 while being connected on the general portion 20c to a rear side member 24. A bumper cover 21 is formed of synthetic resin having a generally U-shaped section and coupled with the upper and lower flanges 20a, 20b of the rear panel lower 20 by bolts 25.

Description

[Detailed description of the invention] [Industrial application field].

The present invention relates to a rear bumper structure for an automobile.

[Conventional technology]

Conventionally, there are rear bumper structures for automobiles as shown in FIGS. 2 and 3.

An example shown in FIG. 2 (see Japanese Utility Model Application Publication No. 57-66946) shows a stay 3 provided on a bumper B formed by a bumper reinforcement 1 and a bumper skin 2, and this stay 3 provided on a rear panel lower 4. It is inserted into the insertion hole 5 and is attached to the rear side member (not shown) and fixed to the vehicle body 6.

Also, Fig. 3 (see Utility Model Application Publication No. 106281/1981)
In the example shown in FIG.
is attached to the rear panel lower 9, and the rear floor panel 10 is connected to both rear panels 18.9 and protrudes rearward, and is connected to the bumper reinforcement vertical wall 7C to fix the bumper reinforcement 7 to the vehicle body. It is made up of a reinforcement 7, a bumper skin 11, and a bolt 12 fixed. Note that the reference numeral 13 in the figure indicates an energy absorber that absorbs energy.

[Problem that the invention seeks to solve]

However, in the rear bumper structure shown as the first example of the above-mentioned rear bumper structures for automobiles, the bumper is attached to the vehicle body via the stay, so the accuracy of the attachment of the stay to the bumper and the There was a problem in that the installation could not be done unless careful attention was paid to assembly accuracy.

In addition, in the rear bumper structure shown as the second example,
When attaching the rear bumper to the vehicle body, it is not used with a stay, and the accuracy of attachment to the vehicle body is not strictly required in the first example, but since the bumper reinforcement 7 is an essential component, From the viewpoint of weight reduction, this was still not sufficient. Therefore, the present invention proposes a rear bumper that is relatively easy to install on the vehicle body and also contributes to reducing the weight of the vehicle body. This is what we are trying to provide.

[Means for solving problems]

Therefore, the present invention focuses on the rear bumper structure of an automobile. To solve this problem, the upper and lower edges of the rear panel lower are bent horizontally toward the rear to form upper and lower flanges, and bumper skins are attached to both flanges.

〔Example〕

The following is a rear bumper structure according to an embodiment of the present invention? explain.

FIG. 1 is a diagram showing a rear panbar structure according to the present invention.

In this embodiment, the rear panel lower joint is bent horizontally with its upper and lower edges facing rearward, and the upper seven rungs 2
0a and the lower seven rung portions 20b, forming a substantially U-shaped cross section.

This rear panel lower 9 is joined to the rear floor panel 22 and the rear panel upper n at the upper flange m 20a, and is also joined to the rear side member 24 at the crotch portion 20C. The bumper skin 21 is made of synthetic resin and has a substantially U-shaped cross section, and is connected to the upper and lower flange portions 20a and 20b of the rear panel lower member with bolts 5. Further, the bumper skin 21 has rising portions 211 and 212 formed at the upper and lower portions thereof to cover the bolts δ and the like.

In the figure, reference numeral 9 is an energy absorber material, 27 is a trunk lid, and 28 is provided on the rear panel upper panel, and is in contact with the trunk lid H, and is located within the trunk room circle. It is a sealing weather strip.

Therefore, according to the rear bumper structure according to this embodiment, there is no need to use a stay to attach the rear bumper to the vehicle body, and the rear bumper can be easily attached to the vehicle body. By maintaining the strength of the rear bumper without providing reinforcement, the bumper reinforcement can be omitted from t7), and the weight of the vehicle body can be reduced.

〔Effect of the invention〕

As described above, the rear bumper structure according to the present invention has the effect of simultaneously achieving labor saving in rear bumper installation and weight reduction of the vehicle body.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a rear bumper structure of an automobile according to an embodiment of the present invention, FIG. 2 is a perspective explanatory view showing a conventional rear bumper structure of an automobile, and FIG. 3 is a conventional rear bumper structure of an automobile. FIG. Redundancy...Rear panel lower 20a...Upper 7 rung section 20b...Lower flange section 21...Bumper skin Fig. 1 Fig. 2 Fig. 3

Claims (1)

[Claims] A rear bumper structure for an automobile, characterized in that upper and lower end edges of a rear panel lower are bent horizontally toward the rear to form upper and lower flange parts, and a bumper skin is attached to both of these flange parts.