KR100391788B1 - Impact Absorbing Apparatus of Car - Google Patents

Abstract

The present invention relates to a shock absorbing device of a vehicle, wherein a gas shock absorber is installed inside the door, but the rod of the gas shock absorber is extended to the fender apron so that the rod is prevented by the gas pressure during frontal collision and offset collision. The purpose is to be able to effectively attenuate the impact force generated when the vehicle crash by retreating gradually to the rear. In order to achieve the above object, the present invention provides a shock absorbing device for a vehicle installed inside the front door and the fender apron, the inner panel of the front door is provided with a gas shock absorber, the outer panel of the fender apron The rod of the gas shock absorber is extended and a universal joint is installed between the gas shock absorber and the rod to prevent the rod from being bent.

As described above, the present invention allows the rod of the gas shock absorber to be extended to the fender apron, thereby effectively reducing the impact force generated during the collision of the vehicle by retreating the rod gradually back to the rear during gas collision and offset collision. have.

Description

Impact Absorbing Apparatus of Car}

The present invention relates to a shock absorber of a vehicle, and more particularly, a gas shock absorber is fixed to a front door side to absorb and disperse shock energy generated during frontal or offset collision, and the rod of the gas shock absorber At the same time, a universal joint is installed at the connection part of the gas shock absorber and the rod to prevent the rod from bending when opening or closing the front door. The present invention relates to a shock absorbing device for a vehicle in which the load is not bent even when the door is opened and closed, as well as effectively protecting and absorbing the generated impact force.

In general, three of the most important performance of a car is driving, braking and safety. The most important of these problems is human life and deep safety, which is closely related to car crashes and crashes.

The collision of automobiles is called as a primary collision and a secondary collision. The first collision refers to the deformation of the vehicle body, and the second collision refers to the phenomenon in which the passenger starts to move and hits the steering wheel or the interior part of the vehicle after some progress. At this time, you will be injured in two collisions.

Therefore, the vehicle body must absorb the impact energy effectively during the collision.

Bumpers are installed in the front and rear of a general vehicle so as to absorb the impact force generated during a vehicle crash, and recently, a technology in which a shock absorber is incorporated inside the vehicle body panel has been proposed.

However, the conventional shock absorbing device has a problem that is partially installed on one side of the body panel does not effectively absorb the impact force generated during frontal and offset collision.

The present invention has been made to solve the above-described problems, the rod of the gas shock absorber to be extended to the fender apron so that when the front collision and offset collision of the vehicle, the rod is retracted backward by the gas pressure when the vehicle crash It is an object of the present invention to provide a shock absorbing device for a vehicle that can effectively reduce the generated impact force.

1 is a perspective view showing a shock absorbing device according to the present invention.

2 is a longitudinal cross-sectional view of FIG.

Figure 3 is a "B" enlarged perspective view of Figure 1, Figures 4a and 4b is a perspective view showing a coupling relationship of the rod, the universal joint and the gas absorber of the present invention.

※ Explanation of symbols about main part of drawing ※

1: inner panel

110: gas shock absorber

112: loaded

120: universal joint

In order to achieve the above object, the present invention provides a shock absorbing device for a vehicle installed inside the front door and the fender apron, the inner panel of the front door is provided with a gas shock absorber, the outer panel of the fender apron The rod of the gas shock absorber is extended and a universal joint is installed between the gas shock absorber and the rod to prevent the rod from being bent.

The end of the gas shock absorber described above is welded and fixed by a mounting bracket fixed to the inner panel of the front door, and the middle of the gas shock absorber is supported by a mounting bracket fixed to the inner panel of the front door. The end of is characterized in that the welding fixed to the mounting bracket fixed to the fender apron.

In other words, the shock absorbing device of the present invention is fixed to the gas shock absorber having a lor on the inner panel of the front door, the rod is extended to the outer panel of the fender apron so that the rod to the inside of the gas shock absorber in the event of a vehicle collision As it retreats, it can absorb and absorb impact force.

The support of the gas shock absorber is supported by a mounting bracket, and the mounting bracket supporting the body of the gas shock absorber preferably supports only the gas shock absorber and is not fixed to the door inner panel. This is because, if the gas shock absorber is completely fixed to the door inner panel, the door may be deformed by the gas shock absorber during a very strong vehicle crash.

Meanwhile, a universal joint is installed at the connection portion between the gas shock absorber and the rod, and the universal joint serves to prevent the rod from bending when the door is opened and closed.

In addition, the gas shock absorber and the rod are fixed to the front door and the fender apron by using the mounting bracket.

Hereinafter, a shock absorbing device for a vehicle according to the present invention will be described in detail.

1 is a perspective view showing a shock absorbing device according to the invention, Figure 2 is a "A" longitudinal cross-sectional view of Figure 1, Figure 3 is a "B" enlarged perspective view of FIG.

As shown in Figure 1 to Figure 3, when looking at the configuration of the shock absorbing device according to the present invention, the inner panel 1 of the front door is provided with a gas shock absorber 110, the outer panel 2 of the fender apron ), The rod 112 of the gas shock absorber 110 is extended.

A universal joint 120 is installed between the gas shock absorber 110 and the rod 112 to prevent bending of the rod 112.

One side of the inner panel 1 of the front door is preferably processed to a hole (not shown) as much as the diameter of the rod 112 so that the rod 112 can penetrate.

A flange 113 is formed at the end of the rod 112 to facilitate welding to the mounting bracket 150.

The end of the gas shock absorber 110 is welded and fixed by a mounting bracket 130 fixed to the inner panel 1 of the front door, and the middle of the gas shock absorber 110 is the inner panel 1 of the front door. It is supported by a mounting bracket 140 fixed to.

Here, in order to effectively absorb the impact force and the safety of the passengers, the middle of the gas shock absorber 110 is preferably fixed to the mounting bracket 140 without being fixed to the door inner panel 1.

The end of the rod 112 is welded to the mounting bracket 150 fixed to the outer panel 2 of the fender apron.

Referring to the operation of the shock absorbing device of the vehicle according to the present invention configured as described above are as follows.

1 to 3, in a front collision or offset collision of the vehicle, a collision force is transmitted to the rod 112, which causes the rod 112 to retreat backward.

The rod 112 is retracted through the universal joint 120 while absorbing the impact force by the gas pressure of the gas shock absorber 110.

Thus, the impact force is reduced due to the retreat of the rod 112 to protect the occupant from the vehicle collision.

On the other hand, the front door is normally opened and closed around a door hinge (not shown). When the gas shock absorber 110 and the rod 112 are installed in a straight line inside the front door and the fender apron, the front door and the predetermined front fender are predetermined. There is a problem that the operation of the front door to be opened at an angle becomes impossible. At this time, if the door is forcibly opened by applying external force to the front door, the door may be damaged or severely cause the rod 112 to be bent by the door. Thus, the rod 112 and the gas shock absorber 110 may occur. By installing the above universal joint 120 to enable the angle conversion between the shock force transmitted from the rod 112 to the gas shock absorber 110 as it is, when the front door is opened, the universal shown in Figure 4a The rod 112 and the gas shock absorber 110, which were placed in a straight line, may be deflected so that angle conversion is performed between the rod 112 and the gas shock absorber 110 about one axis of the joint 120. In addition, the universal joint of the present invention does not have to have an intersecting cross axis as shown in FIG. 4a, and as shown in FIG. 4b, the universal joint moves up and down to coincide with the boundary between the fender apron and the front door. It is more desirable to take up less space on the fender apron front door and have a date axis.

As described above, the present invention allows the rod of the gas shock absorber to be extended to the fender apron, thereby effectively reducing the impact force generated during the collision of the vehicle by retreating the rod gradually backward by the gas pressure during the frontal collision and offset collision of the vehicle. Can be.

Claims (3)

In the shock absorber of the vehicle installed in the front door and the fender apron, A gas shock absorber 110 is provided in the inner panel 1 of the front door, and an rod 112 of the gas shock absorber 110 is extended in the outer panel 2 of the fender apron, and the gas Shock absorber of the vehicle, characterized in that the universal joint (120) is installed between the shock absorber (110) and the rod (112) to prevent bending of the rod (112). The method of claim 1, The shock absorbing device of the vehicle, characterized in that the flange 113 is formed at the end of the rod (112). The method of claim 1, An end of the gas shock absorber 110 is welded and fixed by a mounting bracket 130 fixed to the inner panel 1 of the front door, and the middle of the gas shock absorber 110 is an inner panel of the front door. It is supported by the mounting bracket 140 fixed to 1), End of the rod (112) is shock-absorbing device of the vehicle, characterized in that the welding bracket fixed to the mounting bracket (150) fixed to the outer panel (2) of the fender apron.