KR20100035876A

KR20100035876A - Bush for automobile

Info

Publication number: KR20100035876A
Application number: KR1020080095249A
Authority: KR
Inventors: 이상민
Original assignee: 현대위아 주식회사
Priority date: 2008-09-29
Filing date: 2008-09-29
Publication date: 2010-04-07

Abstract

The present invention provides an automobile mounting bush comprising an inner pipe and an outer pipe, a rubber body for integrally coupling the inner and outer pipes, and a bridge portion formed on the rubber body to directly absorb vibration and impact of the vehicle. By providing an uneven surface on one side of the bridge portion to induce line contact with the other side, among the physical properties related to the durability of the bush, to reduce the contact noise due to deformation in the horizontal direction to improve the running stability of the vehicle To a mounting bush for automobiles.

Automobile, mounting bush, rubber body, bridge part, uneven surface

Description

Mounting Bush for Automobiles {Bush for automobile}

The present invention relates to a mounting bush for automobiles, and more particularly to a mounting bush for automobiles to facilitate the absorption of vibration and shock when the vehicle passes through a step or unevenness of the road.

In general, the CTBA (Coupled Torsion Beam Axle) for vehicles is mounted between the rear wheels of the vehicle and is responsible for adjusting stability and riding comfort during cornering and braking of the vehicle. to be.

The components constituting the CTBA are divided into a trailing arm, a torsion bar, and a mounting bush.

The trailing arm is treated as one rigid link and forms a structure in which all parts are mounted to the trailing arm as a link restraining the overall movement.

The torsion bar mainly controls the influence of the roll behavior of the vehicle and serves to restrain the movement of the trailing arm with respect to the roll stiffness and the lateral force.

In addition, the mounting bush serves to mitigate the vibration and impact coming from the ground.

CTBA is constructed with such a configuration, but the number of supporting points is smaller than that of other suspensions, but the incoming loads come in a variety of sizes and relatively large values are input.

Therefore, the performance of the vehicle varies depending on the performance of the mounting bush, and occupies an important part in terms of ride comfort and steering stability. In general, the mounting bush of the CTBA is largely set in terms of adjustment stability in terms of adjustment stability, In general, it is generally set smaller in terms of riding comfort.

In general, the shape of the automotive mounting bush is a symmetrical shape is mainly used to add a space to the cylindrical shape.

Conventional mounting bush, as shown in Figure 4, the inner pipe 110 and the outer pipe 120, the rubber body 130 for integrally binding the inner and outer pipes 110 and 120, and the rubber body It is formed in the 130 is made of a bridge portion 140 that directly absorbs the vibration and impact of the vehicle.

By the way, in the configuration of the conventional mounting bush having such a configuration, there is a problem that the contact noise is generated by the deformation when the interior of the bridge portion 140 absorbs vibration and shock of the vehicle.

Accordingly, the present invention has been invented to solve the above problems, by having a concave-convex surface on one side of the bridge portion formed in the automobile mounting bush to induce line contact with the other side, the physical performance related to the durability of the bush Among the characteristics, it is to provide a mounting bush for a vehicle that can improve the running stability of the vehicle by reducing the contact noise due to deformation in the horizontal direction.

In order to achieve the above object, the present invention, the inner pipe and the outer pipe, a rubber body for integrally binding the inner and outer pipes, and a bridge formed on the rubber body directly absorbs the vibration and impact of the vehicle In the vehicle mounting bush made of a portion, the bridge portion 14 is characterized in that the uneven surface 20 is formed on any one surface selected from one side or the other side of the inner surface.

As a preferred embodiment, the uneven surface 20 is characterized in that it consists of a plurality of straight structure having a predetermined length formed at equal intervals in the vertical direction.

As described above, according to the automotive mounting bush according to the present invention, among the physical properties related to the durability of the bush, the effect of improving the running stability of the vehicle by reducing the contact noise due to deformation in the horizontal direction There is.

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

1 is a partial cutaway perspective view showing a vehicle mounting bush according to the present invention, Figure 2 is a front view showing a mounting bracket for a vehicle according to the invention, Figure 3 is a side view showing a mounting bush for a vehicle according to the invention to be.

2 and 3, the rubber body 13 which integrally binds the inner pipe 11 and the outer pipe 12 having a constant diameter and the inner and outer pipes 11 and 12. And a bridge portion 14 formed on upper and lower sides of the center of the rubber body 13 to directly absorb vibration and shock of the vehicle.

In the preferred embodiment of the present invention, the bridge portion 14, as shown in Figures 1 to 3, the uneven surface 20 is formed on one side of the inner surface of the bridge portion 14 is deformed in the horizontal direction It is possible to reduce the contact noise caused by.

At this time, the concave-convex surface 20 is not limited to one side as in the embodiment according to the present invention, and even if formed on one side as well as the other side corresponding to implement the same effect does not matter the mounting position.

As shown in FIG. 1, the uneven surface 20 has a plurality of predetermined lengths formed at equal intervals in a vertical direction on one side of the inner surface of the bridge portion 14 or any one selected surface of the other side. Consists of two straight structures.

Such uneven surface 20 is provided on any one surface selected from one side or the other side of the inner surface of the bridge portion 14 is in line contact with the other surface corresponding to the road surface or the change in the weight of the vehicle body And, the surfaces are in close contact with each other to the sliding movement, the uneven surface 20 is to give a cushion effect to the surface corresponding to the uneven surface 20 to reduce the contact noise.

In addition, the uneven surface 20 and the contact surface is in line contact with each other, thereby reducing the contact area, thereby further reducing the contact noise.

As described above, the vibration and impact of the vehicle are directly absorbed by the bridge part 14 formed in the rubber body 13, which is the configuration of the mounting bush 10 according to the present invention. By placing the uneven surface 20 on the side surface it is possible to reduce the contact noise due to deformation in the horizontal direction to improve the running stability of the vehicle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the scope of the appended claims. It will be understood by those skilled in the art that various modifications may be made and equivalents may be resorted to without departing from the scope of the appended claims.

1 is a partial cutaway perspective view showing a vehicle mounting bush according to the present invention,

2 is a front view showing a mounting bush for automobiles according to the present invention;

Figure 3 is a side view showing a mounting bush for automobiles according to the present invention,

4 is a front view showing a conventional mounting bracket for a vehicle.

* Description of the symbols for the main parts of the drawings *

10 mounting bush 11: inner pipe

12: outer pipe 13: rubber body

14: bridge portion 20: uneven surface

Claims

An automobile mounting bush comprising an inner pipe and an outer pipe, a rubber body for integrally binding the inner and outer pipes, and a bridge portion formed on the rubber body to directly absorb vibration and impact of the vehicle,

The bridge portion 14 is an automobile mounting bush, characterized in that the concave-convex surface 20 is formed on any one surface selected from one side or the other side of the inner surface.

The method of claim 1,

The uneven surface 20 is a vehicle mounting bush, characterized in that made of a plurality of straight structure having a predetermined length formed at equal intervals in the vertical direction.