KR20100119918A - Bracket unit for bumper - Google Patents

Abstract

PURPOSE: A bracket unit for a bumper, which prevents the loosing of a screwing part of a cover bracket by absorbing the vibration due to air resistance or the vibration of an engine, is provided to prevent damage and self-deformation by hinged-operating a lower beam bracket toward an upper beam bracket. CONSTITUTION: A bracket unit for a bumper comprises an upper beam bracket(13), a lower beam bracket(15), a return spring and a cover bracket(21). The upper beam bracket is installed at the rear side of the vehicle bumper beam along a longitudinal direction. The lower beam bracket is connected to the lower part of the upper beam bracket through the contraction part of a hinge. The lower beam bracket is bent from the center part in order to form a front side and an upper side. The cover bracket is fixed to the bottom inner surface of the bumper cover.

Description

Bracket unit for bumper {BRACKET UNIT FOR BUMPER}

The present invention relates to a bumper bracket unit, and more particularly, to a bumper bracket unit provided between a vehicle bumper beam and a bumper cover to fix and support a rear surface of the bumper beam and a lower part of the bumper cover.

In general, the bumper in a vehicle absorbs the impact when the vehicle collides with another vehicle or a fixed body to promote the safety of the occupant, and at the same time, a buffer installed at the front and rear of the vehicle so as to minimize the deformation of the vehicle body. Unit.

As shown in FIG. 1, the bumper 100 has a stay 103 mounted on both rear sides of the bumper beam 101 disposed in the vehicle width direction from the front and the rear of the vehicle, so that the bumper 100 is mounted on the vehicle side side member 111. It is fixed, in front of the bumper beam 101, the energy absorber 107 is disposed to absorb the impact force, the bumper cover 101 and the bumper cover 109 surrounding the energy absorber 107 forms the appearance of the vehicle body. .

Here, between the bumper beam 101 and the bumper cover 109, as shown in FIG. 2, the bumper bracket unit 105 may cover the rear surface of the bumper beam 101 and the lower part of the bumper cover 109. The bumper cover 109 is configured to be fixedly supported by the bumper beam 101.

That is, in the bumper bracket unit 105, four beam brackets 121 are welded and fixed to the rear surface of the bumper beam 101 along its longitudinal direction, and the lower portion of the bumper cover 109 corresponds to the lower portion thereof. It is composed of four cover brackets 123 fixed to the inner surface, and each of the beam bracket 121 and the cover bracket 123 is fastened to each other by a screw 125 to the bumper cover 109 to the bumper beam 101 To be fixed and supported.

However, in the conventional bumper bracket unit 105 as described above, the beam bracket 121 and the cover bracket 123 are fixed to each other with the screw 125 so that vibration or air resistance of the engine generated when the vehicle is driven. There is a problem in that the screw fastening portion is loosened due to the vibration caused by the vibration.

In addition, in the conventional bumper bracket unit 105, since both the beam bracket 121 and the cover bracket 123 are made of metal, the lower part of the bumper cover 109 may be overspeed bumps or obstacles on the road during driving of the vehicle. In the case of being deformed or damaged by the impact force, the bumper cover 109, which is rather restorable, is restrained from being restored, thereby maintaining the deformed state. There is a problem.

Therefore, the present invention has been invented to solve the problems of the prior art as described above, the problem to be solved by the present invention is to apply a beam bracket with a hinge structure having a spring restoring force between the bumper beam and the bumper cover for the vehicle by applying a beam bracket It provides a bumper bracket unit that absorbs vibration caused by vibration or air resistance, and at the same time prevents deformation or breakage by the impact force even when colliding with an obstacle on the road, and guides the bumper cover to be easily restored by self-resilience. will be.

Bumper bracket unit of the present invention for realizing the technical problem as described above is a flat beam-shaped upper beam bracket which is installed along the longitudinal direction on the rear surface of the bumper beam for a vehicle; A lower beam bracket of a shape bent at a central portion to form a hinge fastening portion through a hinge pin at a lower portion of each upper beam bracket, and to have a front surface and an upper surface; A restoring spring that provides restoring force outwardly to the lower beam bracket with respect to the upper beam bracket while being fitted to the hinge pin; It is characterized in that the cover bracket is fixed to the lower inner surface of the bumper cover for the vehicle corresponding to the lower portion of the lower beam bracket, one side is fastened to the lower beam bracket.

Here, the hinge fastening portion forms upper rib ends having pin holes on both lower sides of the upper beam bracket, respectively, and lower rib ends having pin holes on both sides of the upper end of the upper beam bracket, respectively, to form the upper and lower portions. Characterized in that the hinge ends are fastened through each pin hole in the state overlapping the rib end.

And the lower beam bracket forms a support end bent forward on both front sides thereof to support both sides of the cover bracket, and a fastening hole for screwing the cover bracket in the center of the front face. .

In addition, the restoring spring is fitted to the hinge pin, it is preferable that one end of the torsion coil spring is supported on the front surface of the upper beam bracket, the other end is supported on the upper surface of the lower beam bracket.

As described above, according to the bumper bracket unit according to the present invention, the beam bracket is connected to the upper and lower beam brackets such that the bumper beam for the vehicle and the bumper cover are interconnected through a hinge fastening portion to have self-resilience by a torsion coil spring. By constructing in a binary manner, it is possible to solve the problem of loosening the screw fastening part with the cover bracket by absorbing vibration caused by engine vibration or air resistance force generated during driving of the vehicle.

In addition, even if the lower part of the bumper cover collides with an overspeed bump or an obstacle on the road while the vehicle is driving, the lower beam bracket hinges with respect to the upper beam bracket even if the bumper cover is temporarily deformed by the impact force. It can be prevented, and the restoring force of the torsion coil spring has an effect of assisting the restoring operation of the bumper cover, thereby preventing the occurrence of abnormal noise during driving.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in detail as follows.

3 is a rear perspective view of a bumper cover to which a bumper bracket unit according to an exemplary embodiment of the present invention is applied, and FIG. 4 is an enlarged view of portion A of FIG. 3.

In the bumper bracket unit 10 according to the present embodiment, as shown in FIGS. 3 and 4, four sets are provided between the vehicle bumper beam 1 and the bumper cover 3 along the longitudinal direction thereof. A beam bracket 11 is installed on the rear surface of the bumper beam 1.

That is, the beam bracket 11 is divided into the upper beam bracket 13 and the lower beam bracket 15, as shown in FIG.

The upper beam bracket 13 is formed in a flat plate shape made of metal and welded to the rear surface of the bumper beam 1 to be fixed.

In addition, the lower beam bracket 15 is connected to form a hinge fastening portion HP through the hinge pin 17 at the lower portion of the upper beam bracket 13, and has a central portion to have a front surface F1 and an upper surface F2. Consists of a sheet of metal bent in a "??" shape.

Here, the hinge fastening portion HP forms upper rib ends P1 having pin holes on both lower sides of the upper beam bracket 13, respectively, and both ends of the upper surface F2 of the lower beam bracket 15. Lower hinge ends P2 having pin holes respectively formed therein to fasten the hinge pins 17 through the respective pin holes in a state where the upper rib ends P1 and the lower rib ends P2 overlap each other. It is configured by.

In addition, a restoring spring 19 is installed at the hinge fastening part HP, and the restoring spring 19 is made of a torsion coil spring and fitted to the hinge pin 17, and one end of the restoring spring 19 is provided at the upper beam bracket 13. It is supported on the front surface (F3) of the other end is supported on the upper surface (F2) of the lower beam bracket 15 is installed to provide an outward restoring force to the lower beam bracket 15 with respect to the upper beam bracket (13) .

In addition, the bumper bracket unit 10 of the present embodiment includes a cover bracket 21 installed on the bumper cover 3, and the cover bracket 21 corresponds to a lower portion of each lower beam bracket 15. It is fixed to the lower inner surface of the bumper cover (3) and one side is fastened to the lower beam bracket (15).

That is, the cover bracket 21 is fixed to the lower beam bracket 15 by fastening with a screw (S).

At this time, the lower beam bracket 15 forms support ends P3 that are bent forwards on both front sides of the cover bracket 21 to support both sides of the cover bracket 21, and the cover bracket 21 has both sides thereof. In a state sandwiched between the support end (P3), it is fastened with a screw (S) to the fastening hole (H) formed in the front surface (F1) of the lower beam bracket (15).

Therefore, the bumper bracket unit 10 having the configuration as described above is installed along the longitudinal direction between the rear surface of the bumper beam 1 and the lower inner surface of the bumper cover 3 to bumper the bumper beam 1. The lower part of the cover 3 is fixed to be supported.

In this state, the beam bracket 11 fixed to the bumper beam 1 is a restoring spring made of a torsion coil spring in which the upper beam bracket 13 and the lower beam bracket 15 are interconnected through a hinge fastening portion HP. The lower beam bracket 15 is configured to have a self restoring force by absorbing vibrations of the engine or vibrations caused by air resistance force generated when the vehicle is driven by the restoring spring 19 on the hinge fastening portion HP. ) And the screw (S) fastening portion of the cover bracket 21 is prevented from loosening by vibration.

In addition, as shown in FIG. 6, while the vehicle is running, the lower portion of the bumper cover 3 collides with an overspeed bump or an obstacle on the road, and the lower portion of the bumper cover 3 is temporarily deformed by the impact force F thereof. Even if the lower beam bracket 15 is hinged with respect to the upper beam bracket 13 it is possible to prevent the deformation and breakage of the beam bracket 11 itself.

At this time, the restoring force of the restoring spring 19 helps the restoring operation of the bumper cover 3 to add restoring force to its original state, and as a result, abnormal noise caused by deformation of the lower part of the bumper cover 3 during driving. Will be prevented.

1 is an exploded perspective view of a general vehicle bumper.

2 is a rear perspective view of a bumper cover to which a bumper bracket unit according to the related art is applied.

3 is a rear perspective view of the bumper cover to which the bumper bracket unit according to the embodiment of the present invention is applied.

4 is an enlarged view of a portion A of FIG. 3.

5 is an assembled perspective view of the beam bracket applied to the bumper bracket unit according to the embodiment of the present invention.

6 is a cross-sectional view taken along the line B-B of Figure 3 showing the operating state of the bumper bracket unit according to an embodiment of the present invention.

Claims (8)

 In the bumper bracket unit, An upper beam bracket having a flat plate shape installed on a rear surface of the vehicle bumper beam along its longitudinal direction; A lower beam bracket of a shape bent at a central portion to form a hinge fastening portion through a hinge pin at a lower portion of each upper beam bracket, and to have a front surface and an upper surface; A restoring spring that provides restoring force outwardly to the lower beam bracket with respect to the upper beam bracket while being fitted to the hinge pin; The bumper bracket unit, characterized in that the cover bracket is fixed to the lower inner surface of the bumper cover for the vehicle corresponding to the lower portion of the lower beam bracket and one side is fastened to the lower beam bracket. In claim 1, The hinge fastening portion Upper rib ends having pin holes are formed on both lower sides of the upper beam bracket, respectively, and lower rib ends having pin holes are formed on both sides of an upper end of the upper beam bracket, so that the upper and lower rib ends overlap each other. Bumper bracket unit, characterized in that consisting of fastening the hinge pin through each pin hole. In claim 1, The lower beam bracket is Bumper bracket unit, characterized in that for supporting both sides of the cover bracket to form a support end bent forward on both sides of the front, the fastening hole for screwing the cover bracket in the center of the front. In claim 1, The restoring spring Bumper bracket unit, characterized in that the end of the hinge pin, the one end is supported on the front of the upper beam bracket, the other end is made of a torsion coil spring supported on the upper surface of the lower beam bracket. A plurality of beam brackets installed on a rear surface of the vehicle bumper beam along a longitudinal direction thereof, and a plurality of cover brackets fixed to the lower inner surface of the bumper cover corresponding to each lower portion of the beam bracket and fastened to one side of the beam bracket; In the bumper bracket unit, The beam bracket is A flat beam-shaped upper beam bracket welded to the rear surface of the bumper beam; A lower beam bracket bent in a “??” shape to be connected to a hinge fastening portion through a hinge pin at a lower portion of the upper beam bracket, and screwed to the cover bracket; Bumper bracket unit, characterized in that consisting of a restoring spring for providing a restoring force outwardly to the lower beam bracket with respect to the upper beam bracket in the state fitted to the hinge pin. In claim 5, The hinge fastening portion Upper rib ends having pin holes are formed on both lower sides of the upper beam bracket, respectively, and lower rib ends having pin holes are formed on both sides of an upper end of the upper beam bracket, so that the upper and lower rib ends are overlapped. Bumper bracket unit, characterized in that the hinge pin is configured through each pin hole. In claim 5, The lower beam bracket is Bumper bracket unit, characterized in that for supporting both sides of the cover bracket to form a support end bent forward on both sides of the front, the fastening hole for screwing the cover bracket in the center of the front. In claim 5, The restoring spring Bumper bracket unit, characterized in that the end of the hinge pin, the one end is supported on the front of the upper beam bracket, the other end is made of a torsion coil spring supported on the upper surface of the lower beam bracket.

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