JP3113995U - Automotive strut tower bar - Google Patents

Abstract

The present invention proposes a damper that can change the rigidity of a strut tower bar as necessary and absorbs an impact.
The present invention integrates a strut tower bar pipe 2 and a shock absorber 6 with a connecting nut 4 via a vehicle side fixing tool 8 on the left and right strut towers 1, so that the other strut tower 1 If there is a large input, the influence on the other strut tower is alleviated, and the shock absorber 6 connected by the connecting nut 4 is removed depending on the operation state, or the spring 12 and the spring 10 (see FIG. The problem is solved by changing the hardness of 2) [Selection] Fig. 1

Description

  The present invention relates to a strut tower bar for an automobile that can change the rigidity as needed and has a function of absorbing an impact.

The input in one direction with respect to the impact has an influence on the facing side, which accelerates the deterioration of the vehicle, and the strut tower bar is attached and detached according to the driving conditions such as a wet road surface.

Each strut tower bar can achieve a certain reinforcing effect. However, they are reinforcement methods in which the effect is limited to a certain extent by connecting the left and right strut towers with metal pipes.

Therefore, depending on the driving situation of the car, if there was a large input to the other strut tower, the other strut tower was also affected, leading to a decrease in steering stability and fatigue or damage to the car body. In addition, there are various factors when trying to improve the driving stability of an automobile, and it may be better not to reinforce depending on the road surface condition, etc. In such a case, a large work such as removing a metal pipe It is necessary, and the degree of reinforcement can be easily changed, so that the above-mentioned drawbacks are solved.

The present invention integrates metal pipes and shock absorbers with the connecting nuts on the left and right strut towers via the vehicle side fasteners, so that when the other strut tower receives a large input, The problem is solved by mitigating the influence on the strut tower, removing the shock absorber connected by the connecting nut according to the operation status, or changing the stiffness of the spring inside the shock absorber.

As described above, the strut tower bar for automobiles of the present invention is not only reinforced for the vehicle strut tower but also provided with a shock absorber on the strut tower bar via the connecting nut, so that the other strut tower bar can If there is an input, the impact on the other strut tower is mitigated, and it is easy to remove the shock absorber connected by the connecting nut or change the stiffness of the spring inside the shock absorber depending on the driving situation Reinforcement can be performed according to the driving situation of the car.

In the tower bar main body to which the tower bar pipe is attached via a fixing member fixed to the vehicle strut, a shock absorber using a spring is connected to the tower bar pipe with a connecting nut. By using the connecting nut, the shock absorber can be easily attached and detached.

1 and 2, the shock absorber 6 has coil springs 10 and 12 end caps on a piston rod spring seat 26 and a piston rod spring seat 26 which are screwed to a cylinder 14 via slide guides 15 and 16. 18 and 20 with some compression applied.

The strut tower bar pipe 2 according to FIG.
The connecting nut 4 provided on the strut tower bar pipe 2 can slide on the strut tower bar pipe 2, but is provided on the tapered portion provided on the strut tower bar pipe 2 (see FIGS. 2 and 3) and the connecting nut 4. Each of the tapered portions is restricted in the direction of the shock absorber 6. The connecting nut 4 is provided with an internal thread, and the end cap 18 and the piston rod 24 of the shock absorber 6 are provided with external threads. By tightening the connecting nut 4, the tapered portion of the strut tower bar pipe 2 and the connecting nut 4 are provided. The center of the pipe can be positioned by the taper portion and can be fastened to the shock absorber 6.

1 and 4, when the strut tower 1 is input in the A direction, an axially extending load is applied to the strut tower bar pipe 2 according to FIG. 4-2, and the piston rod spring seat 26 and the piston rod spring seat are applied. The piston rod 24 screwed to 26 moves in the direction of compressing the coil spring 12 along the slide guides 15 and 16, respectively.

In FIG. 1 and FIG. 4, when there is an input in the B direction to the strut tower 1, an axial compressive load is applied to the strut tower bar pipe 2 according to FIG. 4-3, and the piston rod spring seat 26 causes the coil spring 10 to move. The piston rod 24 screwed to the piston rod spring seat 26 moves in the direction of compressing the coil spring 12 along the slide guides 15 and 16, respectively.

As described above, the shock absorber 6 acts in both the compression direction and the extension direction, and the coil springs 10 and 12 are compressed to receive the load and absorb the impact. Therefore, the rigidity between the strut towers can be changed by selecting the spring constants of the coil springs 10 and 12.

The shock absorber 6 can be attached / detached by the connecting nut 4. A plurality of shock absorbers 6 having the same dimensions between the end faces of the end cap 18 and the piston rod 24 and changing the spring constants of the built-in coil springs 10 and 12 are provided. By preparing and exchanging, it becomes possible to change the degree of reinforcement of the vehicle body without detaching the strut tower bar pipe 2 or the vehicle side fixing tool 8 from the vehicle body.

It is explanatory drawing which shows the whole this invention. It is sectional drawing of the buffering device and fastening device in this invention. It is a separated view of the shock absorber and the fastening device in the present invention. It is a figure explaining operation | movement of the buffering device in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Strut tower 14 Cylinder 2 Strut tower bar pipe 15 Slide guide 4 Connection nut 16 Slide guide 6 Shock absorber 18 End cap 8 Vehicle side fixing tool 20 End cap 10 Coil spring 22 Piston rod 12 Coil spring 24 Piston rod spring seat

Claims (2)

A strut tower bar for a vehicle that connects the upper ends of strut towers provided on the left and right sides of the front and rear of an automobile to prevent the strut tower from falling down. A strut tower bar for an automobile comprising a tower bar fixing tool and a shock absorber having a structure for absorbing an impact that can be attached to and detached from a pipe-like tower bar main body by a connecting nut. 2. The strut tower bar for an automobile according to claim 1, wherein in the shock absorber connected to the tower bar main body by a connecting nut, the hardness can be adjusted freely and easily by changing the spring.

Images