JP3290341B2 - Vehicle bumper - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bumper for a vehicle in which a sheet metal bumper can be easily positioned and assembled at a corner extending from a part of a front surface to a side surface of a resin bumper.

[0002]

2. Description of the Related Art There has been provided a bumper mounted on a vehicle body in which a resin balance bumper is mounted below a sheet metal bumper including a plated corner portion.

As shown in FIG. 6, the structure of the sheet metal bumper is such that a center part 10 and a corner part 11 are connected by bolts 13 via a bracket 12, and a resin balance bumper 14 is also shown in FIG. As described above, the structure is such that the screw 15 and the grommet screw 16 are fastened and fixed to the lower side of the center portion 10.

[0004] Further, as shown in FIG.
A bracket 17 is fixed to a part of the bumper arm 1 by welding or the like, and the
8 is fixed with bolts, and the balance bumper 14 is connected to a bumper arm 18 via a bumper support 19.

[0005]

In the above conventional structure, the sheet metal bumper is basically mounted and fixed to the vehicle body, and the balance bumper 14 made of resin is mounted on the sheet metal bumper. Therefore, in the case where the easily damaged corner portion is damaged and is replaced, it is necessary to remove the sheet metal bumper from the vehicle body and attach and fix a new sheet metal bumper to the vehicle body.

Further, the sheet metal bumper requires a large number of components in a structure for connecting the center portion 10 and the corner portion 11, and there is a problem that the cost is increased due to a complicated structure.

The above-mentioned conventional structure is a two-member bumper composed of a sheet metal bumper and a balance bumper made of a resin, but a resin bumper alone is also known. In this case, a metal molding is formed from a corner or a front surface to a side surface. If it is mounted but is to be replaced because the easily damaged corners are damaged, the entire resin bumper must be replaced, which is expensive.

SUMMARY OF THE INVENTION It is an object of the present invention to improve appearance and repairability of a sheet metal bumper mounted on a corner portion of a resin bumper as a main component, to reduce cost, and to easily position and assemble the sheet metal bumper. It was done.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the gist of the present invention is to provide an L-shaped concave portion having a vertical wall and a horizontal wall at a corner portion extending from a part of a front surface to a side surface of a resin bumper. A box-shaped projection on the vertical surface wall of the recess, and a stopper projection at the end of the recess on the front side of the resin bumper, and a recess groove is provided at the end of the recess on the side surface of the resin bumper. An engaging portion which is formed in an arc shape along the concave portion and which is engaged with the stopper projection at one end of the sheet metal bumper fitted into the concave portion and serves as a rotation fulcrum; and a positioning portion which contacts the convex portion to position the sheet metal bumper. A flange is provided, one end of the sheet metal bumper is locked to a stopper projection, rotated and fitted into the recess, and the other end of the sheet metal bumper is fitted into the concave groove and mechanically fastened to the resin bumper. Characterized by A.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a resin bumper, and 2 denotes a sheet metal bumper attached to a corner portion extending from a part of a front surface of the resin bumper 1 to a side surface thereof. It is a corner bumper. That is, the bumper of the present invention is a basic one in which the resin bumper 1 is attached and fixed to the vehicle body.

The details of the present invention will be described with reference to FIGS. The resin bumper 1 has an L-shaped concave portion 3 formed of a vertical wall 3a and a horizontal wall 3b at a corner portion extending from a part of the front surface to the side surface, and a box-shaped vertical wall 3a of the concave portion 3 is formed. A plurality of convex portions 4 are formed so as to protrude.

A stopper projection 6 is formed on the vertical wall 3a at the front end of the resin bumper 1 in the recess 3 so that the stopper projection 6 is formed at a portion where the stopper projection 6 is formed. An opening 7a is formed. Further, a concave groove 7a is provided at the end of the concave portion 3 on the side surface of the resin bumper 1.

The sheet metal bumper 2 has an arc shape along the concave portion 3, and at one end thereof is provided an engaging portion 8 which is engaged with the stopper projection 6 and serves as a rotation fulcrum. A positioning flange 20 for positioning the sheet metal bumper 2 in contact with the side of the portion 4 is provided.

A bolt hole 5 for tightening bolts and nuts, which is one of mechanical fastening means, is formed in the vertical wall 3a between the protrusions 4 of the recess 3 and a bolt is provided in the sheet metal bumper 2. A hole 21 is provided. The mechanical fastening means may be, for example, a screw and a grommet screw or a clip.

In the above configuration, the manner of assembling the sheet metal bumper 2 to the resin bumper 1 is as shown by a virtual line in FIG.
Is inserted obliquely into the opening 7a, and an engaging portion 8 formed at one end of the sheet metal bumper 2 is brought into contact with the stopper projection 6 and locked.

When the sheet metal bumper 2 is rotated in the direction of the resin bumper 1 with the stopper projection 6 as a fulcrum, a positioning flange 20 for positioning the sheet metal bumper 2 comes into contact with the side of the projection 4. The sheet metal bumper 2 is positioned, and the other end of the sheet metal bumper 2 fits into the concave groove 7b, so that the sheet metal bumper 2 fits into the concave portion 3 of the resin bumper 1 as shown by a solid line in FIG.

The sheet metal bumper 2 fitted into the concave portion 3 of the resin bumper 1 is, for example, a bolt which is a mechanical fastening means inserted through the bolt holes 5 and 21 and fastened by a nut.

FIG. 4 and FIG. 5 are examples of the design change of FIG. 2 and FIG. In this case, the resin bumper 1 is provided with a slit 4a on the side of the convex portion 4 for engagement with a positioning flange 20a of the sheet metal bumper 2, which will be described later, and a stopper projection 6a near the opening 7a. It is protrudingly formed.

The sheet metal bumper 2 is provided at one end thereof with an engaging portion 9 which is engaged with a stopper projecting portion 6a protrudingly formed near the opening 7a and serves as a rotation fulcrum. The tip of the positioning flange 20a engaging with the slit 4a on the side of the projection 4 has the tip end of the slit 4a.
It is formed in the shape of a hook that engages with the hook.

In the design modification shown in FIGS. 4 and 5, the manner of assembling the sheet metal bumper 2 to the resin bumper 1 is the same as in FIGS. 2 and 3, as indicated by the phantom line in FIG. The tip of 20a is connected to the lower part 4b of the convex part 4.
Then, the opening 7a is slid and inserted, and the engaging portion 9 formed at one end of the sheet metal bumper 2 is brought into contact with the stopper projection 6a and locked.

Then, the sheet metal bumper 2 is rotated in the direction of the resin bumper 1 with the stopper projection 6 as a fulcrum, and a positioning flange 20a for positioning the sheet metal bumper 2 is provided.
Is located in the slit 4a on the side of the convex portion 4, the sheet metal bumper 2 is slid to the side of the resin bumper 1 so that the positioning flange 20a is
a, the sheet metal bumper 2 is positioned, and the other end of the sheet metal bumper 2 is fitted into the concave groove 7b so that the sheet metal bumper 2 fits into the concave portion 3 of the resin bumper 1 as shown by a solid line in FIG. Embed.

The sheet metal bumper 2 fitted into the concave portion 3 of the resin bumper 1 is inserted by, for example, a bolt, which is a mechanical fastening means, into the bolt holes 5 and 21 and fastened and connected by a nut.

As described above, in any of the configurations shown in FIGS. 2 and 3 or the design modifications shown in FIGS. 4 and 5, the resin bumper 1 is basically fixed to the vehicle body.
The sheet metal bumper 2 incorporated in the corner of the resin bumper 1 can be easily attached to and detached from the recess 3 of the resin bumper 1.

Therefore, when the corner portion of the sheet metal bumper 2 which is easily damaged is replaced when the resin bumper 1 is attached to the vehicle body, the work of detaching and replacing the sheet metal bumper 2 can be performed. By replacing only the metal bumper 2, the repair becomes possible, and the resin bumper 1 is not damaged by the metal bumper 2 when the metal bumper 2 is attached to the resin bumper 1.

The sheet metal bumper 2 has a circular arc shape along the recess 3 and cannot be set in one direction. However, the sheet metal bumper 2 can be easily set by the rotation trajectory with the stopper projections 6 and 6a as fulcrums. At the same time as this setting, the positioning can be performed at a predetermined position by the positioning flanges 20 and 20a.

[0026]

As described above, according to the present invention, an arc shape along the corner portion, which is a part that cannot be set in one direction, with respect to the corner portion of the resin bumper which is basically mounted and fixed to the vehicle body. It is possible to easily set the sheet metal bumper, and it is possible to position the sheet metal bumper at a predetermined position at the same time as the set operation.

[Brief description of the drawings]

FIG. 1 is a perspective view of a vehicle equipped with a bumper according to the present invention.

FIG. 2 is a perspective view of a portion A in FIG.

FIG. 3 is a cross-sectional view of FIG. 2 and shows how to assemble a sheet metal bumper.

FIG. 4 is a perspective view of a part A in FIG. 1 showing a modification example of the present invention.

FIG. 5 is a cross-sectional view of FIG. 4 and shows how to assemble a sheet metal bumper.

FIG. 6 is a partial perspective view of a conventional bumper.

FIG. 7 is a sectional view taken along line BB of FIG. 7;

FIG. 8 is a cross-sectional view of a bumper arm of a conventional bumper.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Resin bumper 2 Sheet metal bumper 3 Concave part 3a Vertical wall 3b Horizontal wall 4 Convex part 5 Bolt hole 6 Stopper protrusion 6a Stopper protrusion 7a Opening 7b Concave groove 8 Engaging part 9 Engaging part 20 Positioning flange 20a Positioning flange 21 Bolt hole

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60R 19/04 B60R 19/22

Claims (1)

(57) [Claims] 1. An L-shaped recess comprising a vertical wall and a horizontal wall is formed in a corner portion extending from a part of a front surface to a side surface of a resin bumper, and a box-shaped convex portion and a concave portion are formed in the vertical wall of the concave portion. A stopper protrusion is provided at an end of the front surface side of the resin bumper, and a concave groove is provided at an end of the concave portion on the side surface of the resin bumper. An arc shape along the concave portion is formed at one end of a sheet metal bumper fitted into the concave portion. An engagement portion which is locked to the stopper projection and serves as a rotation fulcrum, and a positioning flange for abutting the projection to position the sheet metal bumper are provided. One end of the sheet metal bumper is engaged with the stopper projection. A vehicle bumper, wherein the bumper is stopped, rotated and fitted into the concave portion, and the other end of the sheet metal bumper is fitted into the concave groove and mechanically fastened to the resin bumper.