KR20080101984A

KR20080101984A - Reinforcing apparatus for back beam

Info

Publication number: KR20080101984A
Application number: KR1020070048204A
Authority: KR
Inventors: 김수상
Original assignee: 현대모비스 주식회사
Priority date: 2007-05-17
Filing date: 2007-05-17
Publication date: 2008-11-24

Abstract

Disclosed is a bumper backbeam reinforcement device. The bumper back beam reinforcement apparatus of the present invention includes: a back beam having a space formed at an upper side and a lower side of a panel, the cross section having a “B” shape, and a center of a rear side protruding forward; And reinforcement parts disposed at left and right ends of the back beam and formed to correspond to the shape of the cross section of the back beam.

According to the present invention, unlike the conventional invention, reinforcement parts are provided at both ends of the back beam to absorb bumper collision energy during offset collision, thereby reducing damage to the bumper.

Description

Bumper Back Beam Reinforcement Unit {REINFORCING APPARATUS FOR BACK BEAM}

1 is a perspective view for explaining a collision between a bumper and a contoured bumper barrier according to an embodiment of the present invention;

Figure 2 is a perspective view briefly showing the front of the bumper according to an embodiment of the present invention,

Figure 3 is a perspective view briefly showing the rear of the bumper according to an embodiment of the present invention,

4 is a perspective view illustrating a reinforcement part of a bumper back beam according to an exemplary embodiment of the present invention.

Explanation of symbols for main parts of drawings *

100: bumper 110: back beam

150: reinforcement

The present invention relates to a reinforcement, and more particularly, to a bumper back beam reinforcement device that can reduce the repair cost generated after the bumper impact.

In general, an automobile bumper is installed at the front and rear of the vehicle body to protect the vehicle body and the occupant as well as to protect the engine and various devices mounted in the hood and the engine room. The bumper is provided with a facer forming the outer shell of the bumper, and an energy absorbing member having a shape restoring function and a shape restoring function of the facer. In particular, a back beam that supports the energy absorbing member and absorbs the energy during the collision through elastic or plastic deformation is fastened inside the bumper to cushion the vehicle.

Recent car crash tests do not test in front of a fixed wall to depict a situation more similar to real life, but tests that collide with a device that has a shape similar to that of a car's bumper, such as a contoured bumper barrier. do. The vehicle crash test includes a contour bumper barrier and an offset collision test in which a bumper collides 100% with a 100% frontal collision and a 15% overlapping collision. The inside of the bumper is provided with a back beam at the center, and spaces are provided at the left and right ends of the back beam, so there is no configuration to alleviate the impact during the offset collision test. Therefore, there is a need for improvement.

The present invention has been made by the necessity as described above, and an object of the present invention is to provide a bumper back beam reinforcement device that can reduce the repair cost by reducing damage to both ends of the bumper during the offset collision test.

The bumper back beam reinforcement apparatus according to the present invention includes: a back beam having a space formed on the upper and lower portions of the panel by bending the panel, having a cross section having a “B” shape, and a center of the rear surface protruding forward; And a reinforcement part disposed at left and right ends of the back beam and formed to correspond to a shape of a cross section of the back beam. Such a bumper back beam reinforcement device is provided with reinforcement portions at right and left ends of the back beam to absorb bumper collision energy during an offset collision, thereby reducing damage to the bumper.

Preferably, the back beam and the reinforcement are screwed.

Preferably, the reinforcing portion and the back beam are formed to face each other to face each other.

Hereinafter, an embodiment of a bumper back beam reinforcement device according to the present invention will be described with reference to the accompanying drawings. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view illustrating a collision between a bumper and a contoured bumper barrier according to an embodiment of the present invention, and FIG. 2 briefly illustrates a front surface of a bumper according to an embodiment of the present invention. Figure 3 is a perspective view, Figure 3 is a perspective view briefly showing the rear of the bumper according to an embodiment of the present invention. 4 is a perspective view illustrating a reinforcement part of a bumper back beam according to an exemplary embodiment of the present invention.

1 to 4, the bumper 100 to which the bumper back beam reinforcement device is mounted according to an embodiment of the present invention includes a back beam 110 and a reinforcement part 150. Here, the facer and the like which form the shell of the bumper are obvious to those skilled in the art, and the description and drawings will be omitted.

The connecting portion 90 coupling the back beam 110 and the vehicle body (not shown) is disposed at both left and right sides of the bumper 100 to connect the back beam 110 and the vehicle body.

The back beam 110 of the bumper 100 has a structure in which the center portion of the rear surface of the back beam 110 protrudes toward the front side, and one panel is bent several times so that spaces are formed at the top and the bottom, respectively, and both ends of the panel are back beams. It is a structure that meets in the center toward the rear of the (110). In addition, the cross section of the back beam 110 is provided in a "B" shape.

The back beam 110 forming a cross section having a “B” shape includes sidewalls that are bent horizontally from the top and bottom sides of the web vertically formed to the rear of the center, and first walls extending vertically to the outside of each sidewall. And an outer wall that is formed horizontally from the first wall to the front wall and a second wall that vertically meets to abut on the outer wall. The second wall bends backwards and faces each other.

The reinforcement part 150 is disposed at both left and right ends of the back beam 110 and is formed to correspond to the shape of the cross section of the back beam 110 as shown in FIG. 3.

And the back beam 110 and the reinforcement 150 is screwed. The reinforcement part 150 and the back beam 110 are formed to face each other to face each other and face each other. Preferably, the reinforcement part 150 and the back beam 110 are coupled to each other by interference fit and the opposite surface of the reinforcement part 150. The 155 is formed in a stage as shown in FIG. 4 so as to be inserted into the back beam 110.

Here, the screw coupling is a hole 160 is formed on the front surface coupled to the reinforcement 150 and the back beam 110, the fastening portion (B) for coupling the reinforcement 150 and the back beam 110 is a hole 160 Is inserted into

In the bumper 100 including the reinforcement part 150, even when both the left and right sides of the contour bumper barrier C and the bumper 100 collide through the offset collision test, the reinforcement part 150 absorbs the shock and thus the bumper ( 100) damage can be reduced.

In the embodiment of the present invention, the opposite surface 155 of the reinforcing part 150 is formed horizontally from the reinforcing part 150, but this is only an example, and the ends of the reinforcing part 150 and the back beam 110 are bent. Of course, it may be screwed in the contact surface.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. Will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

As described above, the bumper back beam reinforcement apparatus according to the present invention, unlike the prior invention, is provided with reinforcement portions at the left and right ends of the back beam can absorb the bumper collision energy during the offset collision to reduce damage to the bumper.

In addition, the present invention can reduce the damage caused by the bumper by reducing the damage to the bumper.

In addition, the present invention is formed corresponding to the cross section of the bumper back beam does not require a separate roll forming equipment, and the rear portion is fastened to the locking jaw, so it does not require a separate fastening portion, so the coupling is easy and the cost can be minimized. have.

In addition, in the present invention, since the reinforcement part is separately fastened from the bumper back beam, in the case of the offset collision test, the repair cost may be reduced by replacing only the reinforcement part without replacing the back beam when the bumper is repaired due to the left and right collision of the bumper.

Claims

A back bend in which a panel is bent to form a space at an upper side and a lower side, the cross section having a “B” shape, and a center of a rear side protruding toward the front side; And

And a reinforcement part disposed at left and right ends of the back beam and formed to correspond to a shape of a cross section of the back beam.

The method of claim 1,

And the back beam and the reinforcement part are screwed together.

The method of claim 2,

The reinforcement part and the back beam is a bumper back beam reinforcement device, characterized in that the opposite surface is formed facing each other.