KR19980020412A - Pressure soba with adjustable height of spring seat - Google Patents

Abstract

The present invention relates to a shock absorber capable of adjusting the height of a lower spring seat supporting a lower end of a coil spring in a front strut suspension of a passenger car.

The shock absorber 21 of the present invention is composed of a hollow cylindrical body 22 and a shock absorber shaft 23 coupled to the main body to move up and down in the axial direction, wherein the body 23 is a height adjusting nut of the spring seat. The screw part 24 to which 30 is fastened and the stopper part 25 of the upper end are provided.

The spring seat 10 is fitted to the threaded portion 24 and is supported by the height adjustment nut 30 to be adjustable in height.

Accordingly, the height of the spring seat can be easily adjusted by the height adjusting nut fastened to the screw part, thereby shortening the development period related to the performance review of the suspension device, and having compatibility with tires of various sizes. It works.

Description

Pressure soba with adjustable height of spring seat

1 is an exploded perspective view of a typical strut suspension system

2 is a partial front view showing a conventional pressure soba structure in more detail.

3 is a partial front view showing a state in which the coil spring and the spring sheet are assembled to the pressure soba according to the present invention;

Figure 4 is a front view showing the structure of the shock absorber according to the present invention

Explanation of symbols on the main parts of the drawings

1,21: Shock absorber 2: Lower spring pad

3: coil spring 4: dust cover

5: rubber bumper 6: upper spring seat

7: Lower bracket 8: Body mounting bracket

9: knuckle 10: lower spring seat

11,23: Push-pull shaft 11a, 23a: Screw end

15 welded portion 16 tire

22: main body 24: screw

25: stopper portion 30: height adjustment nut

[Purpose of invention]

[Technical Field]

The present invention relates to a shock absorber capable of adjusting the height of a spring seat, and more specifically, a shock absorber capable of adjusting a height of a lower spring seat supporting a lower end of a coil spring in a strut type suspension device mainly as a front side suspension device of a passenger car. It is about.

[Private Technology]

Referring to Figs. 1 and 2, the conventional case is an exploded perspective view of a conventional strut-type suspension device, which is a pressure absorber 1 for absorbing vibration of a vehicle body and attached to the pressure absorber. The lower spring seat 10 and a predetermined distance from the outer circumference of the shaft 11 of the pressure absorber 1 and are supported in a state in which the lower spring pad 2 is interposed on the lower spring seat 10. A dust cover 4 inserted into the upper portion of the coil spring 3 and the coil spring 3 to surround the shock absorber shaft 11 to prevent dust from entering the upper portion of the coil spring 3; A rubber bumper 5 positioned and buffered; an upper spring seat 6 for limiting upward movement of the upper end of the coil spring 2; and a lower bracket 7 welded on the upper spring seat 6; ) And abuts on the lower bracket (7) The upper bracket 13, the vehicle body mounting bracket (8) for fixing the upper end of the shock absorber (1) to the vehicle body side, and the screw end (11a) of the pressure absorber shaft (11) to the upper bracket (13) The nut 12 to be fastened to the c) and the knuckle soba 1 are welded to the lower end of the knuckle soba 1 to be fastened to both sides of the cross member (not shown).

Referring to FIG. 2, the pressure soba 1 is hydraulic and has a pressure soba shaft 11 extending coaxially with the coil spring 3 which is supported by the spring seat 10 while driving. The shock absorber shaft 11 moves up and down to alleviate vibration and shock of the vehicle.

However, in the related art, the spring sheet 10 supporting the lower end of the coil spring 3 is fixedly welded to the shock absorber 1, as shown by the welding portion 15, so that the tire 16 is replaced. When mounting the tire of the size and tires slightly larger in width or height in the city vehicle was not applicable because it interferes with the spring seat 10, the processing jig according to the height change of the spring seat when examining the suspension performance The change, and therefore the cost of reproduction, and its development took a lot of time.

[Technical problem to be achieved]

Accordingly, the present invention is to overcome the above-mentioned conventional problems, an object of the present invention is to prevent interference with the spring seat due to the tire size change and to shorten the development period related to the performance review of the suspension device To provide a pressure soba that can adjust the height of the spring seat.

[Summary of invention]

As an example of a shock absorber for achieving the object of the present invention, in the shock absorber of the strut-type suspension device for mitigating vibration and shock while driving with the coil spring supported by the spring seat, the hollow cylindrical body and the main body Composed in the axial direction so that up and down in the axial direction coupled to the shaft, the main body is characterized in that it comprises a screw portion to which the height adjustment nut of the spring sheet and the stopper portion of the upper end.

The spring seat is fitted to the screw portion and is supported by the height adjustment nut so that the height is adjustable.

[Configuration and Function of Invention]

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

3 and 4, the pressure soba 21 of the present invention, together with the coil spring (3) supported by the spring seat 10, the front side on-vehicle device of the passenger car to mitigate the vibration and shock of the running circumference It is a component of strut type suspension system.

The shock absorber 21 is composed of a hollow cylindrical body 22 and a shock absorber shaft 23 coupled to the main body to move up and down in an axial direction, and a knuckle (not shown) is welded to the lower end of the body 22. It is fixed on the cross member of the vehicle body and the screw end 23a of the shock absorber shaft 23 is fixed by a bracket attached to the top of the wheel housing of the vehicle body.

Preferably, the main body 23 has a screw portion 24 to which the height adjustment nut 30 of the spring sheet 10 is fastened and a stopper portion 25 at an upper end thereof.

The spring seat 10 is fitted to the threaded portion 24 and is supported by the height adjustment nut 30 to be adjustable in height.

On the other hand, the diameter of the screw portion 24 is smaller than the stopper portion 25 and larger than the diameter of the main body.

By the above configuration, the pressure soba of the present invention acts as follows.

As shown in FIG. 3, the lower end of the coil spring 3 is supported by the spring seat 10, and the spring seat 10 is fitted to the threaded portion 24 of the pressure shock absorber 21 to allow the threaded portion ( In the state supported by the height adjusting nut 30 fastened to 24, the height of the tire 16 is interfered with the spring seat 10 according to the performance review of the suspension system or the replacement of tires of different sizes. Needs to be.

Therefore, in this case, by turning the height adjustment nut 30 with a tool such as a spanner, the height of the spring sheet 10 can be adjusted by the length of the screw portion 24 in the direction of the arrow in the drawing.

At this time, the stopper portion 25 located at the upper end of the screw portion 24 limits the top height of the spring sheet 10.

[Effects of the Invention]

As described above, the shock absorber of the strut-type suspension device according to the present invention supports the spring sheet of the coil spring by having a screw portion, and the height of the spring sheet can be easily adjusted by the height adjusting nut fastened to the screw portion. Performance review of related parts can shorten the development period of the parts, and there is an effect of having compatibility for tires of various sizes.

Claims (3)

In the shock absorber 21 of the strut-type suspension device for mitigating vibration and shock while traveling together with the coil spring 3 supported by the spring seat 10, It is composed of a hollow cylindrical body 22 and a shock absorber shaft 23 coupled to the body and moving in the axial direction. The main body 23 is a pressure soba that can adjust the height of the spring seat, characterized in that it comprises a screw portion 24 and the stopper portion 25 of the upper end to which the height adjustment nut 30 of the spring seat is fastened. The method of claim 1, The spring seat 10 is inserted into the threaded portion 24 is supported by the height adjustment nut 30, the pressure adjustment so that the height adjustment of the spring seat. The method of claim 2, The screw portion 24 is a pressure soba is capable of adjusting the height of the spring sheet, characterized in that the diameter is smaller than the stopper portion 25 and larger than the diameter of the main body 22.