KR100232472B1 - Bumper mounting structure for a vehicle - Google Patents

Abstract

The present invention relates to a bumper mounting structure for a vehicle that can protect a passenger by installing a shock absorber tube on a frame on which a bumper is mounted and absorbing a shock transmitted from the outside during a crash accident. A bumper stay 8 on which the bumper face 10 is installed, and a bracket 30 to which the bumper stay 8 is attached, via a face 10 and an energy absorber 12 absorbing an impact transmitted from the outside. A guide pipe 32 extending in the longitudinal direction from the frame 20, a frame 20 having a guide tube 20a inserted to slide the guide pipe 32, and a guide pipe 32 by the stopper 22. It is fixed to the guide tube (20a) of the frame 20 opposite to the (), it is composed of a shock absorbing tube 26 having a plurality of buffer holes and refractions (26b).

Description

Bumper Mounting Structure for Automobile

The present invention relates to a bumper mounting structure for an automobile, and more particularly, by installing a shock absorber on a frame on which a bumper is mounted, and absorbing a shock transmitted from the outside during a crash, thereby protecting a passenger safely. It relates to a bumper mounting structure.

In general, a car is roughly divided into a body and a chassis. Here, the vehicle body is a part of the vehicle, which can be classified into an interior of a vehicle providing a boarding space for a person, an engine room in which an engine is installed, and a trunk chamber for storing and transporting luggage. In addition, the vehicle body may be divided into a front vehicle body, an intermediate vehicle body and a rear vehicle body according to the configuration position. The front body can be divided into inner panel parts such as dash panels and outer plate parts such as hoods covering the engine compartment, and trunks are arranged in the rear body.

In general, a vehicle is equipped with a hood that constitutes a front vehicle body and a front bumper for protecting an engine mounted in an engine room in the event of a crash. A rear bumper is mounted on the rear body, and thus, a conventional front bumper mounting structure will be described with reference to FIG. 1 attached to assist in understanding the present invention.

As shown in FIG. 1, in the conventional bumper mounting structure, the bumper stay 8 is fixed to the frame 2 via the bracket 14 by the bolt 4 and the nut 6, and then the bumper stay 8 In front of 8), an energy absorber 12 that absorbs an external impact amount and a bumper face 10 are disposed in this order.

In the conventional vehicle bumper mounting structure having such a configuration, when the amount of impact transmitted from the outside is not very large, the energy absorber can sufficiently absorb the impact energy, but when the amount of impact is large enough to cause injury to the occupant, the external impact This frame has the problem of being fatally wounded as it is delivered to passengers in the cabin.

In order to solve the above problems, the present invention forms a guide tube inside the frame on which the bumper is mounted, and then installs a shock absorber tube in the guide tube, thereby effectively absorbing the impact energy transmitted from the outside and providing a passenger. The object is to provide a bumper mounting structure for automobiles that can be safely protected.

1 is a cross-sectional view showing a conventional bumper mounting structure for a vehicle,

2 is a cross-sectional view showing a bumper mounting structure for automobiles of the present invention.

* Explanation of symbols for main parts of the drawings

8: bumper stay 10: bumper face

12: energy absorber 20: frame

20a: Guide 22: Stopper

26: shock absorber tube 26a: buffer hole

SUMMARY OF THE INVENTION An object of the present invention as described above is in the bumper mounting structure for a vehicle comprising a bumper face and a bumper face provided with an energy absorber absorbing an impact transmitted from the outside, the longitudinal direction from the bracket to which the bumper stay is attached. And a frame having a guide pipe extending along the guide pipe, the guide pipe inserted to slide the guide pipe, and fixed to the guide pipe of the frame by a stopper to face the guide pipe. It is achieved by a bumper mounting structure for automobiles, characterized in that it comprises a shock absorber tube.

According to the bumper mounting structure for automobiles of the present invention, the impact energy transmitted from the outside in the event of a collision of the vehicle is transmitted to the shock absorber installed in the inner guide tube of the frame. At this time, the shock absorbing tube is formed with a plurality of buffer holes and refractions, the buffer holes and the refraction portion is deformed in order to absorb the impact energy, thereby preventing the external shock from being transmitted to the passengers in the cabin. It is possible to protect the passengers safely.

Hereinafter, a bumper mounting structure for an automobile according to a preferred embodiment of the present invention will be described in detail with reference to FIG. 2.

Figure 2 is a cross-sectional view showing a bumper mounting structure for a vehicle of the present invention, the same parts as the conventional structure described in Figure 1 are denoted by the same reference numerals.

As shown here, in the preferred embodiment of the present invention, the small amount of impact applied from the outside is absorbed by the energy absorber 12, while the amount of impact in which the impact energy is strongly transmitted to the frame 20 is transmitted to the frame 20. The structure which absorbs by the shock absorber tube 26 of this invention provided in the inside of) is adopted.

The schematic configuration thereof includes a bumper face 10, an energy absorber 12 that absorbs shocks transmitted from the outside, a bumper stay 8 on which the bumper face 10 is mounted, and a bumper stay 8. Frame 20 having a guide pipe 32 integrally attached to the head), a guide tube 20a into which the guide pipe 32 is inserted, and a frame opposite to the guide pipe 32 by the stopper 22. It consists of the shock absorption tube 26 fixed to the guide tube 20a of the 20.

Here, the guide pipe 32 is formed to extend in the longitudinal direction from one side of the bracket 30 to which the bumper stay 8 is attached, which is formed at the inside of the frame 20 during assembly. Is inserted into The middle portion of the guide pipe 32 is preferably formed hollow to increase rigidity and reduce weight.

As indicated by the numeral 24, the stopper 22 is fixed to the guide tube 20a of the frame 20 into which the guide pipe 32 is inserted by welding. The stopper 22 is welded with a shock absorbing tube 26 extending in the longitudinal direction opposite to the guide pipe 32. The shock absorbing tube 26 is formed with a plurality of buffer holes 26a and refracting portions 26b in order to be able to absorb the impact energy while being deformed by an external impact.

In the bumper mounting structure of the present invention having such a configuration, for example, when a frontal crash occurs, the bumper stay 8 is pushed backward together with the energy absorber 12 by an impact transmitted from the outside. At this time, while the guide pipe 32 formed integrally with the bumper stay 8 moves in a sliding contact state along the guide tube 20a of the frame 20, the shock is partially absorbed. In addition, the external impact amount is transmitted to the shock absorbing tube 26 by the guide pipe 32, and is absorbed by the deformation of the plurality of buffer holes 26a and the refraction portion 26b formed in the shock absorbing tube 26. Delivery to the vehicle is blocked.

According to the present invention described above, since the shock transmitted from the outside is absorbed by a plurality of buffer holes and refractions formed in the shock absorber, the external shock is prevented from being transmitted to the passenger in the vehicle compartment. It is effective to protect it safely.

Claims (1)

In the bumper mounting structure for automobiles which consists of the bumper face 10 and the bumper stay 8 in which the bumper face 10 is installed through the energy absorber 12 which absorbs the shock transmitted from the outside, A guide pipe 32 extending in the longitudinal direction from the bracket 30 to which the bumper stay 8 is attached; A frame 20 having a guide tube 20a inserted to slide the guide pipe 32; It is fixed to the guide tube 20a of the frame 20 by the stopper 22 to face the guide pipe 32. The shock absorber tube 26 having a plurality of buffer holes and deflection portions 26b is provided. Bumper mounting structure for an automobile, characterized in that it comprises a.

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