JPH0628363Y2 - Vehicle bumper structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Technical Field of the Invention) The present invention relates to a bumper structure of a vehicle in which a bumper face made of a resin material is provided for a bumper beam.

(Prior Art) Vehicles such as passenger cars are provided with bumpers in order to reduce damage to the vehicle body during a collision. FIG. 5 shows a conventional bumper structure, in which 1 is a rear end cross member, which is fixed to the rear end of the side member 2. A bumper beam 3 is provided at a rear portion of the rear end cross member 1 at a distance from each other, and is supported by stays (not shown) provided on the side members 2 and 2. The bumper beam 3 is formed in a rectangular tube shape by connecting a pair of members 4 and 4 having a U-shaped cross section to the flange portions 4a and 4a. Further, a shock absorber 5 is attached to the inside of the bumper beam 3, and a bumper face 6 made of a synthetic resin molding is attached to the outside thereof. The bumper face 6 includes a face surface 7, a lower edge portion 8 and an upper edge portion 9.
The mounting portions 10 and 10 are provided on the inner surface portions of the lower edge portion 8 and the upper edge portion 9 so as to project. The mounting portions 10 and 10 are fixed to the flange portions 4a and 4a of the bumper face 6 with bolts 11 and 11. Further, the tip 12 of the upper edge 9 of the bumper face 6
Are extended and fixed to the rear end cross member 1 by bolts 13.

Reference numeral 14 is a rear gate, and 15 is a garnish provided outside the lower edge thereof.

(Problems to be solved by the invention) However, when the bumper structure configured as described above is mounted on the vehicle body, the shock absorber 5
After the bumper beam 3 was attached to the rear end cross member 1, the bumper face 6 was attached to the bumper beam 3, which was a troublesome attachment work. Therefore, in order to improve the mounting workability, the shock absorber 5 and the bumper face 6 are assembled to the bumper beam 3 and mounted on the rear end cross member 1.

However, since the upper edge of the bumper face 6 is not fixed to the bumper beam 3, the bumper beam 3 and the bumper face 6 may come off during the mounting work.

Further, when the vehicle collides, the face surface 7 of the bumper face 6 receives an impact, and the upper edge portion 9 thereof is deformed upward as shown by the chain double-dashed line. Therefore, the rear gate 1 provided close to the upper part by the deformed portion of the bumper face 6
4 and the garnish 15 are damaged.
That is, there is a problem that not only the bumper face 6 is damaged but also the peripheral part is damaged.

The present invention was made in view of the above circumstances, and the purpose thereof is to assemble a shock absorber and a bumper face to a bumper beam, which can be easily attached to the vehicle body to improve workability. Another object of the present invention is to provide a vehicle bumper structure capable of minimizing the repaired portion without damaging the peripheral portion of the bumper face in the event of a collision.

[Structure of the Invention] (Means and Actions for Solving the Problem) In this invention, a fixing portion for the cross member and a temporary fixing flange for the bumper beam are provided at the upper edge portion of the bumper face, and the temporary fixing flange is fixed to the bumper beam. In this state, the bumper beam and the bumper face are fixed to the cross member so that the bumper face can be easily attached during the attaching work without coming off.

(Embodiment) Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

As shown in FIGS. 1 to 4, a fixing portion 21 for the rear end cross member 1 is provided at the upper edge portion 9 of the bumper face 6 so as to project downward. Further, a plurality of temporary fixing flanges 22 are provided in the fixing portion 21 at a predetermined interval.
Is provided so as to project. A through hole 24 is formed in the fixing portion 21 so as to face a mounting hole 23 formed in the rear end cross member 1. The temporary fixing flange 22 has a thin-walled portion 25 that is cut when a load is applied midway.
And a through hole 26 is formed at the tip. Then, the bumper face 6 is attached to the rear end cross member 1 by a bolt 28 and a nut 29 which are inserted into the through hole 24 and the attachment hole 23 of the fixing portion 21 via a pressing plate 27. Further, the temporary fixing flange 22 is attached to the back surface side of the bumper beam 3 by a bolt 30 and a nut 31 which are inserted into the through hole 26.

When mounting the bumper beam 3, the shock absorber 5, and the bumper face 6 to the vehicle body, first, the shock absorber 5 is fixed to the bumper beam 3. Further, the lower edge portion 8 of the bumper face 6 is fixed to the mounting portion 10 of the bumper beam 3 with bolts 11, and the temporary fixing bracket 22 of the upper edge portion 9 is fixed to the back surface side of the bumper beam 3 with bolts 30 and nuts 31. To do. After assembling the bumper beam 3, the shock absorber 5 and the bumper face 6 in this way, the bumper beam 3 and the shock absorber 5 are attached to the rear end member 1, and the bumper face 6 is attached to the through hole 24 and the attachment hole via the holding plate 27. The bolt 28 is inserted into the screw 23, and the nut 29 is tightened and fixed to the bolt 28. Therefore, the bumper face 6 can be easily attached without coming off from the bumper beam 3 during the attaching work.

Further, since the bumper face 6 is attached to the bumper beam 3 with a space therebetween, even if the bumper face 6 is deformed as shown in FIG. The thin portion 25 provided
Therefore, the bumper face 6 is not greatly deformed upward, and the tailgate 14 and the garnish 15 can be reliably prevented from being damaged.

[Effect of the Invention] As described above, according to the present invention, the bumper can be easily attached to the vehicle body, and even if the bumper face is deformed due to a shock due to a collision of the vehicle, the bumper face is not damaged. It has the effect of minimizing damage to the vehicle body without causing damage.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention,
1 and 2 are vertical side views, FIG. 3 is a perspective view of a temporary fixing portion, FIG. 4 is a vertical side view when a bumper face is deformed, and FIG. 5 is a vertical side view of a conventional bumper. is there. 1 ... Rear end cross member, 3 ... Bumper beam, 5 ...
Shock absorber, 6 ... Bumper face, 21 ... Fixing part, 22 ... Temporary fixing flange.

Claims (1)

[Scope of utility model registration request] 1. A bumper beam for a vehicle in which a bumper beam is provided outside the front or rear end cross member, a shock absorber and a bumper face are assembled to the bumper beam, and the shock absorber and the bumper face are fixed to the cross member. A fixing portion for the cross member and a temporary fixing flange for the bumper beam are provided on the upper edge portion, and the fixing portion is bolted to the bumper beam with the temporary fixing flange fixed to the bumper beam.
A bumper structure for a vehicle, characterized in that the bumper beam and the bumper face are fixed to the cross member by tightening on the cross member with a nut.