KR20210029601A - chung-gyeogheubsuga yong-ihan jadongchayong beompeo jangchaggujo - Google Patents

Abstract

The present invention relates to a bumper mounting structure for an automobile, which is able to install an impact absorption pipe on a frame, on which a bump is mounted, to absorb an impact transferred from outside in case of a collision, and to protect the passenger′s safety. The bumper mounting structure comprises: a bumper face (10); a bumper stay (8) on which the bumper face (10) is installed by interposing an energy absorber (12) for absorbing an impact transferred from outside; a guide pipe extended in a longitudinal direction from a bracket (30) to which the bumper stay (8) is attached; a frame (20) which has a guide tube (20a) inserted to allow the guide pipe (32) to slide and move; and an impact absorption pipe (26) fixed on the guide tube (20a) of the frame (20) facing the guide pipe (32) by a stopper (22), including a large number of buffer holes and a refraction unit (26b).

Description

Vehicle bumper mounting structure with easy shock absorption{chung-gyeogheubsuga yong-ihan jadongchayong beompeo jangchaggujo}

The present invention relates to a bumper mounting structure for a vehicle, and more particularly, by installing a shock absorber in a frame on which the bumper is mounted, and absorbing the shock transmitted from the outside in the event of a collision, for a vehicle that can safely protect passengers. It relates to a bumper mounting structure.

In general, when looking at a car roughly, it is composed of a body and a chassis. Here, the vehicle body is a part constituting the exterior of the vehicle, and can be divided into a vehicle interior that provides a boarding space for a person, an engine room in which an engine is installed, and a trunk room that stores and transports luggage. In addition, the vehicle body can be divided into a front body, an intermediate body, and a rear body according to the configuration position. The front body can be divided into an inner plate part such as a dash panel and an outer plate part such as a hood covering the engine room, and a trunk is arranged on the rear body.

Typically, a vehicle is equipped with a hood constituting the front body by absorbing the impact to some extent in the event of a collision, and a front bumper to protect the engine installed in the engine room, and a rear bumper for the same purpose ( rear bumper) is mounted on the rear body, and a conventional front bumper mounting structure will be described with reference to FIG. 1 attached to aid understanding of the present invention.

As shown in Fig. 1, in the conventional bumper mounting structure, the bumper stay 8 is fixed to the frame 2 through the bracket 14 by bolts 4 and nut 6, and then the bumper stay ( In front of 8), an energy absorber 12 for absorbing an external impact amount and a bumper face 10 are sequentially disposed.

In the conventional automobile bumper mounting structure having such a configuration, when the amount of impact transmitted from the outside is not very large, the impact energy can be sufficiently absorbed through the energy absorber, but when the amount of impact is large enough to injure the occupants, the external impact It has the problem of causing a fatal injury by being transmitted to the passengers inside the vehicle as it is riding on this frame.

The present invention conceived to solve such a problem is to form a guide tube inside the frame on which the bumper is mounted, and then install a shock absorbing tube in the guide tube, thereby effectively absorbing the impact energy transmitted from the outside to protect passengers. Its purpose is to provide a bumper mounting structure for automobiles that can be safely protected.

An object of the present invention described above is a bumper mounting structure for a vehicle comprising a bumper face and a bumper stay in which the bumper face is installed through an energy absorber that absorbs shock transmitted from the outside, in the longitudinal direction from the bracket to which the bumper stay is attached. A frame having a guide pipe extending along the line and a guide tube inserted so that the guide pipe can slide, and a stopper that is fixed to the guide tube of the frame opposite to the guide pipe, and has a plurality of buffer holes and bends. It is achieved by a bumper mounting structure for a vehicle, characterized in that it includes a shock absorbing tube. According to the bumper mounting structure for a vehicle of the present invention, impact energy transmitted from the outside when a vehicle collision occurs is transmitted to the inner guide tube of the frame. It is transmitted to the installed shock absorber tube. At this time, a number of buffer holes and bends are formed in the shock absorber, and these buffer holes and bends are sequentially deformed to absorb impact energy, so that external shocks are blocked from being transmitted to passengers in the vehicle interior. It is possible to keep the passengers safe.

According to the present invention described above, since the shock transmitted from the outside is absorbed by a plurality of buffer holes and bends formed in the shock absorbing tube, by blocking transmission of the external shock to the passenger in the vehicle interior, the passenger is prevented. There is an effect that can be safely protected.

1 is a cross-sectional view showing a conventional bumper mounting structure for a vehicle,
Figure 2 is a cross-sectional view showing a bumper mounting structure for a vehicle of the present invention.

2 is a cross-sectional view showing a bumper mounting structure for a vehicle according to the present invention, and components identical to those of the conventional structure described in FIG. 1 are denoted by the same reference numerals.

As shown here, in a preferred embodiment of the present invention, a small amount of impact applied from the outside is absorbed by the energy absorber 12, while the amount of impact that is strongly transmitted to the frame 20 due to the large impact energy is the frame ( The structure absorbed by the shock absorbing tube 26 of the present invention installed in the interior of 20) was adopted.

Looking at its schematic configuration, a bumper face 10, an energy absorber 12 for absorbing shock transmitted from the outside, a bumper stay 8 to which the bumper face 10 is mounted, and a bumper stay 8 ), a frame 20 having a guide pipe 32 integrally attached to the guide pipe 32, a guide tube 20a into which the guide pipe 32 is inserted, and a frame opposite to the guide pipe 32 by a stopper 22 It consists of a shock absorbing tube 26 fixed to the guide tube 20a of (20).

Here, the guide pipe 32 is formed to be elongated along the longitudinal direction from one side of the bracket 30 to which the bumper stay 8 is attached, and when assembling, the guide tube 20a formed inside the frame 20 Is inserted into It is preferable that the middle portion of the guide pipe 32 is formed in a hollow shape to increase rigidity and reduce weight.

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

In the bumper mounting structure of the present invention having such a configuration, for example, when a frontal collision occurs, the bumper stay 8 together with the energy absorber 12 is pushed to the rear by an impact transmitted from the outside. At this time, the guide pipe 32 integrally formed in the bumper stay 8 moves along the guide pipe 20a of the frame 20 in a sliding contact state, and the shock is partially absorbed. In addition, the amount of external impact 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 bent portions 26b formed in the shock absorbing tube 26. It is blocked from being transmitted to the interior of the vehicle.

8: bumper stay 10: bumper face
12: energy absorber 20: frame
20a: guide tube 22: stopper
26: shock absorber 26a: buffer hole

Claims (1)

In the bumper mounting structure for a vehicle comprising a bumper face 10 and a bumper stay 8 in which the bumper face 10 is installed through an energy absorber 12 that absorbs shock transmitted from the outside,
A guide pipe 32 extending along the longitudinal direction from the bracket 30 to which the bumper stay 8 is attached,
A frame 20 having a guide tube 20a inserted so that the guide pipe 32 can slide, and a guide tube of the frame 20 opposite to the guide pipe 32 by a stopper 22 A bumper mounting structure for a vehicle, which is fixed to (20a), and includes a shock absorber (26) having a plurality of buffer holes and bends (26b).

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