JPS6318518Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile bumper structure, and more particularly to an improvement in an automobile bumper structure in which the lower end edge of the bumper cover extends to a position spaced apart below a reinforcing member of the bumper.

In recent years, automobile bumpers have been constructed such that the lower edge of the bumper cover extends below the bumper reinforcing member to reduce air resistance during driving or due to design requirements. It's getting old.

As shown in FIG. 2, the bumper cover of the conventional bumper is generally supported at its lower edge 2a' by a support member 4' hanging vertically from the bumper reinforcing member, so that the lower edge 2a' of the bumper cover is When the bumper cover collides with a road curb, etc., the impact force is directly applied to the support member 4' and the support member 4' is plastically deformed, and the elastic force of the synthetic resin bumper cover itself does not restore it to its original shape. There is.

In addition, in order to prevent such drawbacks, for example, Japanese Utility Model Application Publication No. 125656/1983
As disclosed in No. 1), when the bumper skirt comes into contact with another member such as a curb, the bumper skirt deflects toward the rear (upward) of the vehicle together with the bumper skirt, and then returns to its original state. There is a structure in which a flexible bumper reinforcing member is provided, but this structure can only cope with the so-called unidirectional external force applied from the front of the vehicle body, and cannot sufficiently perform the deflection and restoring action. figure,
Moreover, the structure is complicated, and the number of parts, man-hours, and costs increase.

The present invention was developed in view of the above-mentioned drawbacks of the conventional technology, and has an extremely simple structure in which only the lower edge of the bumper cover can be bent in either direction of the front or rear of the vehicle body. An object of the present invention is to provide a bumper structure for an automobile that can return to its original shape even if the lower edge is deformed by any external force due to collision with a curb or the like or interference with a towing rope. shall be.

The present invention provides a bumper for an automobile that includes a bumper reinforcing member that is attached to the vehicle body side, and a bumper cover that is attached to the reinforcing member and whose lower end edge extends to a position spaced apart below the reinforcing member. In the structure, the lower end edge of the bumper cover extends toward the front of the vehicle body and diagonally downward to form a front part,
This front part is folded back and extended diagonally upward at the rear of the vehicle body at a predetermined position to form a rear part whose end edge is located above the folded part, and a cavity is formed between this front part and the rear part. a bumper cover, wherein an edge portion of the rear surface portion located above the fold is supported by a supporting member hanging from the reinforcing member at a position above the fold. The above object is achieved by making only the front and rear surfaces formed at the lower edge of the vehicle flexible in the longitudinal direction of the vehicle body.

Embodiments of the present invention will be described below with reference to the drawings.

This embodiment has a bumper reinforcing member 1 that is attached to the vehicle body side, and a bumper cover 2 that is attached to this reinforcing member 1 and whose lower end edge 2a extends below the reinforcing member 1 to a spaced apart position. This is a bumper structure for an automobile, in which a front part 21 is formed by extending the lower end edge 2a of the bumper cover 2 toward the front of the vehicle and diagonally downward, and a predetermined position of the front part 21 is located at a predetermined position toward the rear of the vehicle and diagonally downward. A rear surface portion 22 is formed by folding upward and further extending, and the rear surface portion 22 is formed such that an end edge 22a of this rear surface portion 22 is located above the folding.

A hollow portion 3 is provided between the front surface portion 21 and the rear surface portion 22, and an edge portion 22a of the rear surface portion 22 located above the fold is attached to a supporting member 4 suspended from the reinforcing member 1. Support.

That is, this supporting position is above the folding position, and the end edge 22a of the rear surface part 22 is sandwiched between the supporting member 4 and the retaining plate 5 and supported by screws (not shown).

Further, reference numerals 51 and 52 in the figure indicate other holding plates, which fix the upper end edge and middle portion of the bumper cover 2, respectively. 6 is a urethane foam, 7 is a vehicle towing hook, and 8 is a towing rope.

Further, BF indicates the front side of the vehicle body, and BR indicates the rear side of the vehicle body.

As a result, the lower end edge 2 of the bumper cover 2
Only the front part 21 and the rear part 22 formed in a are flexible in the longitudinal direction of the vehicle body and can be restored to the original shape.

Therefore, in this embodiment, when the bumper 10 collides with a road curb or the like and an external force directed toward the vehicle body is applied to the bumper cover front section 21 and rear section 22, the front section 21 and the rear section 22 are moved between the two sections. The bumper cover 2 bends toward the vehicle body while deforming the shape of the cavity 3 formed in the bumper cover 2, and returns to its original state by the elastic force of the bumper cover 2 itself when the external force is removed.

In addition, when a car is towed by hooking a rope onto the towing hook 7, and the towing rope 8 interferes with the folded part of the bumper cover 2 and pushes the folded part upwardly of the vehicle body, the front surface of the bumper cover 21 and the rear surface portion 22 bend while changing the shape of the hollow portion in the same manner as described above, and when the force received from the towing rope 8 is removed, the bumper cover 2 returns to its original state.

The cavity 8 serves as a buffer space that releases the deflection of the bumper cover front section 21 and rear section 22, facilitates the deflection of both sections, and prevents external forces from being directly transmitted to the support member 4.

Since the present invention is configured as described above, even if any external force is applied to the bumper cover having the lower edge extending to a position spaced apart below the bumper reinforcing member and the bumper cover is deformed, the bumper cover will deform once the external force is removed. It has the excellent effect that it can be easily restored to its original shape without maintaining the state, and the above-mentioned effects can be achieved with an extremely simple structure that only changes the shape of the lower edge of the bumper cover. This also has the excellent effect of preventing an increase in the number of parts, the number of work steps, costs, etc.

[Brief explanation of the drawing]

FIG. 1 is a schematic sectional view showing an embodiment of an automobile bumper structure according to the present invention, and FIG. 2 is a partial sectional view showing essential parts of a conventional automobile bumper structure. 2...Bumper cover, 2a, 2a'...Lower edge of bumper cover, BF...Front side of vehicle body, 21...
Front part, BR... Rear side of the vehicle body, 22... Rear part,
3...Cavity part, 4, 4'...Supporting member.

Claims (1)

[Scope of utility model registration request] An automobile bumper comprising: a bumper reinforcing member attached to the vehicle body; and a flexible bumper cover attached to the reinforcing member, the lower end of which extends to a position spaced apart below the reinforcing member. In the structure, the lower end edge of the bumper cover is extended toward the front and diagonally downward of the vehicle body to form a front part, and this front part is folded back and extended diagonally upward to the rear of the vehicle body at a predetermined position. forming a rear surface portion such that the rear surface portion is located above the fold, and providing a hollow portion between the front surface portion and the rear surface portion so that an edge portion of the rear surface portion located above the fold, It is supported at a position above the fold by a support member suspended from the reinforcing member, and only the front and rear parts formed at the lower edge of the bumper cover are flexible in the longitudinal direction of the vehicle body. An automobile bumper structure characterized by: