KR19980013796A - Bushing structure for trailing link of automobile suspension - Google Patents

Abstract

The present invention relates to a bushing structure for a trailing link of an automobile suspension, in which the pipe (4) is assembled in the transverse direction on the front and rear of the trailing link (1) 5 is inserted and a cover 6 is coupled to the outer circumferential surface of the rubber 5 so that a separate reinforcing member is provided on the outer peripheral surface of the pipe 4 passing through the center of the bush 3, And a reinforcing member, which is non-linearly attached to the inside of the bush installed on the rear side of the trailing link, is attached to reinforce the rigidity of the bush itself, thereby reliably absorbing and cushioning vibration and impact . Further, as the direction of the rear bushing is directed back and forth, not only the lateral rigidity but also the back and forth rigidity are reinforced. The present invention can improve the assemblability of the trailing link by improving the durability of the bush attached to the rear of the trailing link and facilitating assembly with the trailing link, Can be reduced to a minimum, so that safety at the time of traveling can be expected.

Description

Bushing structure for trailing link of automobile suspension

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a bush structure for a trailing link of an automobile suspension, and more particularly, to a bush structure for a trailing link of an automobile suspension, which includes a reinforcing member inserted into a rear bushing of the trailing link to reinforce its own rigidity, And more particularly to a bush structure for a trailing link of an automotive suspension for effectively absorbing and cushioning impacts.

Suspension is a device that connects the axle and the vehicle body to prevent damage to the vehicle body and cargo and improves the ride quality by preventing the vibration or shock that the axle receives from the road surface from being transmitted directly to the vehicle body while driving. A chassis spring for relieving the impact, and a stabilizer for preventing the chassis spring from rolling.

In addition, the suspension plays an important role in transmitting the driving force generated from the driving wheels or the braking force of each wheel at the time of braking to the vehicle body, enduring the centrifugal force at the time of turning, and maintaining each wheel at the correct position with respect to the vehicle body.

Such a suspension has a rigid axle type in which right and left wheels are connected to the vehicle side and an independent type (Indepedent Suspension or Divided Axle) in which the left and right wheels operate respectively.

The axle type is divided into a front axle and a front suspension. The independent type is divided into a wishbones type, a leaf spring type, a trailing link type, and a strut type (Mc The present invention particularly relates to a bush used in a trailing link type.

The trailing link type supports the wheels by one or two arms toward the rear of the vehicle and the axis of the trailing arm is perpendicular to the direction of the vehicle. There is no change in tread or camber, but the caster changes significantly.

However, in the case of two arms, the caster is not changed either, and the wheel base is slightly changed.

This type has few defects such as alignment change and tire wear, but it has a weak resistance to forces acting in the horizontal direction in the lateral direction and has a drawback that it is liable to cause a nose-down in regulating.

As shown in FIGS. 4 and 5, the bush structure for the trailing link of such an automobile suspension includes a pipe 4 passing through the center of the bushes 2 and 3, A rubber 5 for absorbing and cushioning the rubber 5, and a cover 6 on the outer peripheral surface of the rubber 5.

The bush structure for the trailing link of the conventional automobile suspension thus constructed is constructed such that the pipe 4 is passed through the center of the inside of the bushes 2 and 3 while the shock absorbing and buffering rubber 5 is inserted into the outer peripheral surface of the pipe 4, The cover 6 is engaged with the outer circumferential surface of the rubber 5.

The bushes described above are assembled transversely to the front and rear of the trailing link 1, respectively, and are oriented in the same direction.

On the other hand, the bushes (2) and (3) assembled on the front and rear sides of the trailing link (1) buffer and absorb shock and vibration during traveling of the vehicle.

The bush structure for a trailing link of an automobile suspension as described above can not effectively absorb and cushion vibrations and impacts when the vehicle is running because the bush of the trailing link is simply inserted into the bush, , And the front and rear bushes are provided in the same direction in the same direction, and the lateral stiffness is lowered.

Accordingly, it is an object of the present invention to assemble the bushes assembled before and after the trailing link differently, and to insert the additional reinforcing member in the bushing so that the own rigidity of the bushing and the vibrations during running, And to provide a bush structure for a trailing link of an automotive suspension for effectively absorbing and cushioning shocks.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary view showing an application site of the present invention. FIG.

2 is an exploded perspective view of the present invention.

3 is a sectional view of the present invention.

4 is a perspective view of a conventional one.

5 is a cross-sectional view of a prior art;

DESCRIPTION OF THE REFERENCE NUMERALS (S)

One ; Trailing links 2, 3; bush

4 ; Pipe 5; Rubber

6; A cover 7; The reinforcing member

8 ; Curved surface 9; Spindle

In order to achieve the above object, the bush structure for a trailing link of an automobile suspension of the present invention is assembled horizontally in front of and behind a trailing link (1), a pipe (4) The bush 3 having the cover 5 attached to the outer circumferential surface of the rubber 5 after inserting the rubber 5 into the outer periphery of the pipe 4 passing through the center of the bush 3, And a separate reinforcing member 7 is attached to the upper surface of the base plate.

Reference numeral 8 denotes a curved surface, and reference numeral 9 denotes a spindle.

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

A spindle 9 is formed at the rear end of the trailing link 1 and one side of the pipe 4 protruded to both sides of the rear bush 3 is press-fitted into the spindle 9 Assemble the rear bush (3) to the rear of the trailing link (1).

Preferably, the reinforcing member 7 attached to the pipe 4 of the rear bush 3 is formed in a non-linear shape having a curved surface 8 at a central portion thereof to more effectively absorb and cushion vibrations and shocks when the vehicle is traveling. .

It is more preferable that the bushes 2 to be assembled on the front side of the trailing link 1 are oriented in the lateral direction as in the conventional manner and the bushes 3 to be assembled on the rear side are directed in the forward and backward directions.

Hereinafter, the operation of the present invention will be described.

In the bushes 2 and 3 assembled before and after the trailing link 1, the bushes 2 assembled on the front side are oriented transversely as in the conventional manner, Direction.

The bush 3 assembled with the rear of the trailing link 1 is connected to the spindle 9 formed at the rear end of the trailing link 1 through a pipe 4 projected to both sides through the center of the bush 3, So as to be assembled by press-fitting.

A separate reinforcing member 7 is attached to the outer peripheral surface of the pipe 4 of the rear bush 3 so that the reinforcing member 7 has a curved surface 8 on the central portion thereof, So as to be nonlinearly formed.

The bush 3 assembled to the rear of the trailing link 1 of the present invention is assembled by inserting a nonlinear reinforcing member 7 having a curved surface 8 into the inside of the bush 3, A predetermined space is formed between the outer circumferential surface of the pipe 4 and the rubber 5 by the reinforcing member 7.

The present invention absorbs and absorbs vibrations and shocks when the vehicle travels. This is because the curved surface 8 of the reinforcing member 7 coupled to the inside of the bushing 3 is expanded and contracted up and down to absorb or cushion impact, The space formed between the pipe 4 and the curved surface 8 of the reinforcing member 7 more reliably prevents absorption and tilting of the vehicle body.

The bush structure for a trailing link of an automobile suspension according to the present invention as described above is constructed such that a reinforcing member, which is non-linear, is coupled to the inside of a bush installed at the rear of a trailing link to reinforce the rigidity of the bush itself, So as to more reliably absorb and cushion it.

Further, as the direction of the rear bushing is directed back and forth, not only the lateral rigidity but also the back and forth rigidity are reinforced.

The present invention can improve the assemblability of the trailing link by improving the durability of the bush attached to the rear of the trailing link and facilitating assembly with the trailing link, Can be reduced to a minimum, so that safety at the time of traveling can be expected.

Claims (1)

The pipe 5 is inserted into the pipe 4 and the outer peripheral surface of the rubber 5 is covered with the cover 5, In the bush (3) combined with the bush (6) Wherein a reinforcing member (7) is attached to the outer peripheral surface of the pipe (4) passing through the center of the bush (3).