JPH0512131Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a reinforcement structure for bumpers in automobiles, and more specifically, the invention relates to a reinforcement structure for bumpers in automobiles. This relates to a reinforcement structure for bumpers connected by .

(Conventional technology) In order to reinforce the front bumper made of synthetic resin,
It is known that a bumper support section with the width of the vehicle is installed horizontally between the pillars arranged on the left and right sides of the front end of the vehicle body, reinforcing the entire bumper in the vehicle width direction (Utility Model No. 61-21650).
(see publication).

In response, in order to reduce the weight and cost of the bumper reinforcement structure, the applicant has
In No. 62-198744 (Utility Model Publication No. 01-101955),
As shown in FIGS. 5 and 6, a side reinforcement c is made up of a strut part a fixed to the vehicle body and a bumper support part b connected to the tip of the strut part a and extending in the vehicle width direction. , are arranged on the left and right sides of the vehicle body end, and both inner end portions of the bumper support parts b, b of these side reinforcements c, c are connected by a retainer d, and the left and right side reinforcements c, c and the retainer d are connected. proposed a bumper reinforcement structure that supports the upper edge of bumper e.

(Problem to be solved by the invention) However, in the prior art shown in FIG. 5 and FIG. There is a problem that the bumper reinforcing structure, which is made up of a pair of left and right side reinforcements c and c and a retainer d, is difficult to firmly integrate as a result of insufficient bonding and bending of the connection points.

Furthermore, due to the bending, the outer end portion of the retainer and the inner end portion of the bumper support portion rub against each other.
There is also the problem that squeaks and rust are likely to occur.

In view of the above, the present invention increases the rigidity of the connection between the pair of left and right side reinforcements and the retainer, making it possible to firmly integrate the three, and reducing the occurrence of squeaks and rust at the connection points. The purpose of this invention is to provide a bumper reinforcement structure that can be used.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a side reinforcement consisting of a column fixed to the vehicle body and a bumper support section connected to the upper end of the column and extending in the vehicle width direction. Place the hosements on the left and right sides of the vehicle body,
A bumper reinforcement structure in which both inner end portions of the bumper support portions of these side reinforcements are connected by a retainer, and the upper edge of the bumper is supported by the left and right side reinforcements and the retainer, the bumper support portion The basic shape of the retainer is formed to have a cross-sectional shape, and the basic shape of the retainer is formed to have a cross-sectional shape, and at a connection point between the inner end portion of the bumper support portion and the outer end portion of the retainer,
The bumper support is arranged such that the upper side thereof overlaps with the upper surface of the upper side of the retainer, and the lower hanging portion of the bumper support overlaps with the vertical part of the retainer, and the overlapping parts are fastened with bolts. .

(Function) According to the above configuration, the upper side portion of the bumper support portion of the side reinforcement overlaps the upper surface of the upper side portion of the retainer, and the lower end hanging portion of the bumper support portion is arranged so as to overlap the vertical portion of the retainer. When connecting the inner end portion of the bumper support portion and the outer end portion of the retainer, as shown in FIG. Since they are each formed in a planar shape, a box-like closed section P is formed between the vertical portion 13a of the retainer 13, the vertical portion 9a of the bumper support portion 9, a part of the upper side portion 9b, and the lower side portion 9c. be able to.

Therefore, in this state, by tightening the respective overlapping parts with bolts, the rigidity of the connection point can be increased by the box-shaped closed section P, and the structure is made up of a pair of left and right side reinforcements and a retainer. By strongly integrating the bumper reinforcement structure, the overall rigidity and strength can be increased.

In addition, since the increased rigidity can suppress bending of the connecting portion, it is possible to reduce squeaks and rust that occur when the inner end portion of the bumper support portion and the inner end portion of the retainer rub against each other. I can do it.

(Embodiment) FIGS. 1 to 4 show an embodiment in which the present invention is applied to a reinforcement structure for a front bumper.

A side reinforcement 1 that reinforces both side parts of a front bumper (bumper) 5 includes a column 2 that is erected and fixed to a front cross member (body) 3 of a vehicle body, and a column 2 that is connected to the upper end of this column 2 and is connected to the upper end of the column 2. The bumper support portion 9 extends in the width direction and supports the front bumper 5 at the upper edge portion 5a. These support columns 2 and bumper support sections 9 are connected in a T-shape as shown in FIG. 4. Further, as shown in FIG. 2, the strut section 2 and the front cross member 3 are constructed by joining the lower end 2a of the strut section 2 to the bottom wall of the front cross member 3, and providing bolt insertion holes in the lower end 2a. A nut 4d is screwed onto a bolt 4c passing through the mounting hole 4b and the mounting hole 4a provided in the bottom wall. The arm portion 2b connected to the intermediate height position of the support column 2 is fixed to a fixing plate 3a provided upright on a side frame (not shown) of the vehicle body.

These left and right side reinforcements 1,1
As shown in FIG. 3, the front bumper 5 made of synthetic resin and supported by the front bumper 5 has a substantially planar shape as shown in FIG. The upper part of the front bumper 5 greatly bulges forward and is provided with a radiator grille 6. A lower portion of the front bumper 5 forms a skirt portion 7. The upper and lower middle portions are recessed to form a recessed portion 8.

The bumper support part 9 has a cross-sectional shape as shown in FIG. 1, and includes a vertical part 9a, an upper side part 9b extending horizontally from the upper end of the vertical part 9a toward the vehicle body, and a lower end of the vertical part 9a toward the vehicle body. The lower side 9 extends horizontally to
c, and a lower end hanging portion 9 extending downward from the lower side portion 9c.
It consists of d. The front-rear dimension of the upper side portion 9b is set to be about three times the front-rear dimension of the front-rear lower side portion 9c.

On the other hand, the retainer 13 disposed between both the bumper support parts 9 has a basic shape in cross section, and the vertical part 1
3a, and an upper side portion 13b extending horizontally toward the vehicle body 3 from the upper end of the vertical portion 13a. Vertical part 1
The lower end portion of 3a is bent toward the vehicle body 3 side. The vertical dimension of the vertical portion 13a is such that the lower end of the vertical portion 13a is the lowest end of the lower end hanging portion 9d of the bumper support portion 9 when the upper side portion 9b of the bumper support portion 9 is superimposed on the upper surface of the upper side portion 13b. The length is set to match the . Further, the upper side portion 13b is provided with a folded portion 13d that is folded back so as to overlap the upper side portion 13b. The upper side portion 13b and the folded portion 13d form a horizontal U-shaped holding portion 14 that holds the upper edge portion 5a of the front bumper 5 and the upper side portion 9b of the bumper support portion 9.

Upper side portion 13b of retainer 13 and folded portion 13
d, bolt insertion holes 15c are provided which match the mounting holes 15a provided in the upper side 9b of the bumper support portion 9 and the bolt insertion holes 15b provided in the upper edge 5a of the front bumper 5, respectively. The upper edge portion 5a of the front bumper 5, the retainer 13, and the bumper support portion 9 are tightened together with bolts 15d and nuts 15e passing through these holes 15a, 15b, and 15c.

Further, the vertical portion 13a of the retainer 13 is provided with a bolt insertion hole 16b that matches the mounting hole 16a provided in the lower end hanging portion 9d of the bumper support portion 9. The retainer 13 and the bumper support part 9 have these holes 16a,
It is fastened with a bolt 16c passing through 16b and a nut 16d.

As a result, the outer end portion of the retainer 13 and the inner end portions of both bumper support portions 9, 9 can be connected at two locations, upper and lower, and a box-shaped closure as shown in FIG. A cross section P can be formed. Furthermore, the holding portion 14 of the retainer 13 holds the upper edge portion 5a of the front bumper 5 between the bumper support portions 9, 9, thereby contributing to increasing the rigidity of the entire upper portion of the front bumper 5.

The mounting hole 10a provided at the outer end of the upper edge 9b of the bumper support 9 matches the bolt insertion hole 10b provided at the upper edge 5a of the front bumper 5, and the front bumper 5 and the bumper support 9 are fastened with bolts and nuts (not shown) passing through these holes 10a, 10b. Further, leg parts 11 and 12 for holding the recessed part 8 of the front bumper 5 are provided on both sides of the lower part of the pillar part 2, and a mounting hole 11a provided in the outer leg part 11 and a bolt insertion hole 11b provided in the retracted part 8 are provided. It is fastened with a bolt and nut (not shown) that pass through it. The inner leg portion 12 and the retracting portion 8 are fastened together by a bolt 12c and a nut 12d passing through a mounting hole 12a provided in the leg portion 12 and a bolt insertion hole 12b provided in the retracting portion 8.

In this way, the front bumper 5
can be supported and reinforced.

(Effect of the invention) According to the invention, the box-shaped closed section formed at the connection point between the outer end portion of the retainer and the inner end portion of the bumper support portion can increase the connection rigidity at the connection point. As a result, it is possible to firmly integrate the left and right side reinforcements and the retainer, increasing the rigidity and strength of the three parts, as well as suppressing bending at the connection points and reducing the occurrence of squeaks and rust. be able to.

[Brief explanation of the drawing]

Fig. 1 is a partially enlarged sectional view of the main parts showing an embodiment of the present invention, Fig. 2 is an overall sectional view thereof, Fig. 3 is an exploded perspective view as seen from the rear of the vehicle body, and Fig. 4 is a schematic diagram showing the overall configuration. FIG. 5 is a schematic front view of a conventional example, and FIG. 6 is a cross-sectional view taken from FIG. 5. DESCRIPTION OF SYMBOLS 1... Side reinforcement, 2... Strut part, 3... Vehicle body, 9... Bumper support part, 9a...
Vertical part, 9b...upper side part, 9c...lower side part, 9d
... lower end hanging part, 13 ... retainer, 13a ...
Vertical part, 13b...Top side part, 15d, 16c...
Boruto, 15e, 16d...Natsuto.

Claims (1)

[Scope of utility model registration request] Side reinforcements consisting of a strut fixed to the vehicle body and a bumper support section connected to the upper end of the strut and extending in the vehicle width direction are arranged on the left and right sides of the vehicle body end. A bumper reinforcement structure in which both inner end portions of a bumper support portion are connected by a retainer, and the upper edge of the bumper is supported by left and right side reinforcements and a retainer, wherein the basic shape of the bumper support portion is a cross section. The basic shape of the retainer is formed into a cross-sectional shape, and the upper side of the bumper support part is connected to the inner end part of the bumper support part and the outer end part of the retainer. A reinforcing structure for a bumper, characterized in that the bumper support part is arranged so as to overlap the upper surface of the upper side part, the lower end hanging part of the bumper support part overlaps the vertical part of the retainer, and each overlapping part is fastened with bolts.