JPH06211091A - Bumper supporting structure of vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] In the event of a vehicle frontal collision, the load applied to the bumper armature causes it to collapse toward the center of the front side member. [Structure] The vertical center positions 3 and 4 of the bumper armature 1 and the front side member 2 are arranged at vertically displaced positions, and a bumper stay 10 is interposed between the two. It becomes. The bumper stay 1
In No. 0, the easily bendable portions 11 and 12 were formed on the upper and lower sides, respectively, and the positions where the easily bendable portions 11 and 12 were formed were deviated to the front and back, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle bumper support structure.

[0002]

2. Description of the Related Art As a technique of this kind, for example, as shown in FIG. 4 (see Japanese Utility Model Laid-Open No. 61-26664), a bumper armature 1 is used as a vehicle bumper support structure.
The vertical center positions 3 and 4 of the front side member 2 and the front side member 2 are arranged at positions vertically displaced from each other, and
The bumper stay 5 is interposed between the two.

[0003]

However, in the above-mentioned conventional example, when the bumper armature 1 and the bumper stay 5 are completely crushed at the time of a frontal collision of the vehicle, the center position of the front side member 2 is reduced. Since the bumper armature 1 and the bumper stay 5 remain in the state of being offset above 4, the input to the front side member 2 thereafter is offset with respect to the center position 4 of the front side member 2. . Therefore,
It becomes difficult to collapse the front side member 2 in the direction of the center position 4. Therefore, it is an object of the present invention to provide a structure in which a front side member is crushed by a load applied to a bumper armature in a frontal collision of a vehicle.

[0004]

As a bumper support structure for a vehicle according to the present invention, the vertical center positions of the bumper armature and the front side member are vertically displaced from each other, and the bumper is provided between them. The bumper stays are provided with interposition of stays, and the bumper stays are formed with easy bend parts at upper and lower sides, respectively, and the positions where the easy bend parts are formed are deviated forward and backward respectively.

[0005]

[Operation] According to this structure, at the time of a frontal collision of the vehicle, the load applied to the bumper armature deforms the easily bendable parts that deviate the positions of the bumper stays back and forth, and the load input to the vehicle is reduced. The center line moves downward and can be brought closer to the center position of the front side member.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. 1 to 3, the vehicle bumper support structure is arranged such that the vertical center positions 3 and 4 of the bumper armature 1 and the front side member 2 are vertically displaced from each other, and A bumper stay 10 is interposed between bolts 6 and nuts 7.

The bumper stay 10 is formed with easily bendable portions 11 and 12 on the upper and lower sides, respectively. The lower bendable portion 12 is formed such that the lower bendable portion 12 is on the front side of the upper bendable portion 11. The easily bendable portions 11 and 12 respectively form recesses 13 extending over both sides of the upper member 16 and the lower member 17, and first flanges 14, 14 are provided upright on both front sides of the recess 13, respectively. Second reinforcing flanges 15 and 15 are provided upright on both sides of the rear side of the recess 13.

According to this embodiment, the load applied to the center position 3 of the bumper armature 1 at the time of a frontal collision of the vehicle causes the bumper stay 10 to be displaced from the position shown in FIG. Easy bend part 1 formed
Due to the deformation of Nos. 1 and 12, the rotation starts around the portions 18 and 19 where the upper member 16 and the lower member 17 are pushed out, and the deformation causes the center line of the load input to the vehicle. Move down and front side member 2
It will approach the center position 4 of. At this time, the distance from the part 18 to the easy bend part 11 and the distance from the part 19 to the easy bend part 1
By making the difference in the distance to 2 substantially the same as the amount of displacement between the center position 4 of the front side member 2 and the center position 3 of the bumper armature 1, the optimum load input direction to the front side member 2 can be obtained. .

[0009]

As described above, according to the present invention, as a bumper support structure for a vehicle, the vertical center positions of the bumper armature and the front side member are vertically displaced from each other, and The bumper stays are interposed between the bumper stays, and the bumper stays have upper and lower easily bendable portions and the positions at which the easily bendable portions are formed are deviated forward and backward, respectively. Therefore, at the time of a head-on collision of the vehicle, the load applied to the bumper armature deforms the easily bendable parts that deviate the positions of the bumper stays back and forth, and the center line of the load input to the vehicle moves downward. It can be moved and crushed toward the center of the front side member.

[Brief description of drawings]

FIG. 1 is a sectional view of a vehicle bumper support structure showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of FIG.

FIG. 3 is an explanatory view of the operation of FIG.

FIG. 4 is a sectional view of a conventional example.

[Explanation of symbols]

 1 Bumper armature 2 Front side member 3 Center position of bumper armature 4 Center position of front side member 5 Bumper stay 10 Bumper stay 11 Easy bend part 12 Easy bend part

Claims (1)

[Claims] 1. A bumper support structure in which the vertical center positions of the bumper armature and the front side member are vertically displaced from each other, and a bumper stay is interposed between them. A bumper support structure for a vehicle, characterized in that easy bends are formed on the upper and lower sides of the bumper stay and the positions where the easy bends are formed are deviated forward and backward.