JPH0339322Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention relates to a reinforcing structure for automobile bumpers.

(Prior Art and its Problems) Conventionally, there is a reinforcing structure for an automobile bumper, particularly a front resin bumper, as shown in FIG. 2.

In the figure, two oblong cooling air opening holes 22 are provided in the center of a resin bumper 21 that is attached to the front side of an automobile. Reinforcement plate 23 for reinforcing and supporting this resin bumper 21
is formed of a single plate material in a shape that can be fixed to the back surface of the resin bumper 21, and has an opening 2 in the center thereof that is aligned with the air opening hole 22 of the resin bumper 21.
4 is installed through it.

In the figure, reference numeral 25 denotes a bumper stay fixed to the back surface of the reinforcing plate 23, the end of which can be connected to the body of the automobile, and the resin bumper 21 can be fixed to the body.

In the case of such a conventional bumper, the reinforcing plate 2
Since the opening 24 is provided through the reinforcing plate 3, the material corresponding to the opening 24 must be cut out when manufacturing the reinforcing plate, which is uneconomical, and the opening 24 reduces the overall strength of the reinforcing plate 23. It was hot.

(Means for solving the problem) The present invention was devised in view of the above problem, and its gist is that a reinforcing plate equipped with a bumper stay for attachment to the body is fixed to the back side of the bumper body. A bumper for an automobile consisting of a reinforcing plate provided with a bumper stay for attachment to the body is fixed to the back side of the bumper main body, the reinforcing plate being arranged in two stages, upper and lower, with an interval between them. The upper side reinforcing plate and the lower side reinforcing plate each have a U-shaped cross section and are arranged in parallel and fixed to the back surface of the bumper body, and the upper side reinforcing plate and the lower side reinforcing plate are The bumper stays are arranged so that the gaps are aligned with the air opening holes formed in the bumper body, and are connected to each other by the bumper stays formed in a bifurcated shape on the back side thereof. Automobile bumper.

(Function) In the automobile bumper of the present invention, the reinforcing plate has two upper and lower parts.
It consists of an upper side reinforcing plate and a lower side reinforcing plate that are arranged in parallel at intervals, and these intervals are aligned with the air opening holes in the bumper body, so the opening area of the air opening holes is reduced. A sufficient amount of cooling air can be secured without reducing the size of the cooling air.

Furthermore, the same configuration eliminates the need for mechanical processing to form openings in the reinforcing plate.

Furthermore, the upper side reinforcement plate and the lower side reinforcement plate each have a U-shaped cross section, so they have sufficient rigidity, and since they are each fixed to the back of the bumper body, the overall strength is high. A reinforcing plate can be constructed.

In addition, the bumper stay fixed to the back surface of the reinforcing plate is formed into a bifurcated shape that can connect the back parts of the upper side and lower side reinforcing plates, so that each reinforcing plate can be firmly supported.

(Example) An example embodying the present invention will be described below based on the drawings.

In Fig. 1, reference numeral 1 denotes an upper side reinforcing plate, which is installed horizontally, and the side edges of one horizontally long plate are bent toward the back side to form a U-shaped cross section, and the left and right ends are is curved toward the back side.

In the figure, reference numeral 2 denotes a lower side reinforcing plate, which is formed in the same shape as the upper side reinforcing plate.
It is arranged in parallel with the upper side reinforcing plate 1 with a distance T below it. One reinforcing plate S is formed by the upper side reinforcing plate and the lower side reinforcing plate 2.

In the figure, reference numerals 3 and 3 refer to bumper stays arranged symmetrically on the left and right sides of the reinforcing plate S, which are formed in a bifurcated shape spanning the back surface of the upper side reinforcing plate 1 and the back side of the lower side reinforcing plate 2. The reinforcing plates are fixedly attached to each rear surface, and have the role of maintaining the distance T between the upper side reinforcing plate 1 and the lower side reinforcing plate 2, reinforcing the reinforcing plates, and connecting the reinforcing plates to the vehicle body.

The reinforcing plate S configured as described above is attached to the back surface of the bumper 21 having an air opening hole 22 for cooling in the center thereof, and supports and reinforces the bumper 21.
In this case, the interval T between the upper side reinforcing plate 1 and the lower side reinforcing plate 2 is aligned with the air opening hole 22 of the bumper 21, and the opening area of the air opening hole 22 is ensured.

That is, according to the reinforcing plate S according to this example, the bumper 2
After securing a sufficient air opening area for cooling without reducing the opening area of the air opening hole 22 of No. 1,
The reinforcement plates 1 and 2 on the top side and lower side are the bumper 21
Since the bumper 21 is fixedly installed on the back surface of the bumper 21, the bumper 21 can be firmly supported. Furthermore, compared to a conventional reinforcing plate made of a single plate, there is no need to cut out material equivalent to the air opening holes 22, and the manufacturing cost of the reinforcing plate can be reduced.

(Effects) The automobile bumper of the present invention has the following effects.

a. A sufficient flow rate of cooling air passing through the air opening holes of the bumper body can be ensured by the spacing between the upper side reinforcing plate and the lower side reinforcing plate.

b Compared to conventional reinforcing plates made of a single plate, there is no need to cut out the material equivalent to the air opening hole, and no mechanical processing is required to form the openings in the reinforcing plate, making it easier to manufacture the reinforcing plate. Costs are reduced.

c. The upper side reinforcing plate and the lower side reinforcing plate each have sufficient strength, and the overall strength of the reinforcing plate can be increased, so that the bumper strength is improved.

d Since the bumper stay is formed into a bifurcated shape and each reinforcing plate is attached to this structure, each reinforcing plate can be firmly supported.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a perspective view showing a conventional example. S...Reinforcement plate, 1...Atsupa side reinforcement plate, 2...
Lower side reinforcing plate, 3... Bumper stay, T... Spacing, 21... Bumper body.

Claims (1)

[Scope of utility model registration request] A bumper for an automobile is provided with a reinforcing plate provided with a bumper stay for attachment to the body fixed to the back side of a bumper body, the reinforcing plate being arranged in parallel at intervals in two stages, upper and lower, and attached to the bumper body. The bumper is constructed of an upper side reinforcing plate and a lower side reinforcing plate each having a U-shaped cross section and fixed to the back side of the bumper, and the upper side reinforcing plate and the lower side reinforcing plate are formed with the above-mentioned interval on the bumper body. What is claimed is: 1. A bumper for an automobile, characterized in that the bumper is arranged to be aligned with the air opening hole, and is connected to the bumper stay formed in a bifurcated shape on the rear side thereof.