KR19980028530U - Mounting Structure of Automobile Strut Bar - Google Patents

Abstract

The present invention relates to a mounting structure of an automobile strut bar that can improve the riding comfort by absorbing the vibration of the strut bar that quickly maintains its equilibrium and returns to its original position when the vehicle is shaken by the vibration transmitted from the road surface. This is the first to secure the strut bar 28 to the bracket 42, one end of which is fixed to the lower control arm 20 by a ball joint and the other end of which is fixed to the bracket 42 of the frame via a threaded portion 28a. The plate 46 and the second plate 50 are fitted with first and second buffers 48 and 52 made of rubber, respectively, to absorb vibrations.

Description

Mounting Structure of Automobile Strut Bar

The present invention relates to a suspension device for an automobile, and more particularly, by fixing the strut bar to the frame using a plate with a rubber cushioning material, preventing the damage to the strut bar and at the same time absorbing vibration to ride comfort It relates to a mounting structure of an automobile strut bar that can be improved.

In general, the suspension system of the automobile connects the axle to the vehicle body, and prevents damage to the vehicle body or the cargo by absorbing vibrations or shocks received from the road surface while the vehicle is not directly transmitted to the vehicle body. It plays a role in maintaining a good ride quality. These suspensions are used in various forms depending on the driving method of the wheel and the type of the spring system, for the configuration of the independent suspension system widely adopted in passenger vehicles with reference to Figure 1 to help understand the present invention. Explain.

Figure 1 is a cross-sectional view showing a configuration of a general front wheel suspension, the overall configuration of the steering wheel to enable the steering of the vehicle by turning by the steering force transmitted through the steering mechanism while rotatably supporting the wheel (10) Disposed at the lower portion of the steering knuckle 12 via the knuckle 12, the upper control arm 16 disposed above the steering knuckle 12 via the ball joint 14, and the ball joint 30; The lower control arm 20, the coil spring 22 mounted on the lower control arm 20 to absorb vibrations or shocks transmitted from the road surface, and the free vibration of the coil spring 22 are suppressed to improve ride comfort. Shock absorber 24, a stabilizer 26 which reduces the inclination of the vehicle body during rolling and maintains equilibrium, and one end of which is connected to the lower control arm 20 by a ball joint. Combined and the other end It consists of a strut bar 28 which is fixed to the frame via damping rubber 18 to balance the vehicle body.

2 is an exploded perspective view showing a mounting structure of a conventional automobile strut bar 28, one end of the strut bar 28 is fixed to the lower control arm 20 by a ball joint, as described above, the other end is It is attached to the fixing hole 42a formed in the bracket 42 of the frame through the screw portion 28a, and serves to quickly maintain the balance and return to the original posture when the vehicle is swung by the vibration transmitted from the road surface. do.

Here, the strut bar 28 is fixed to the bracket 42 by the first plate 34 and the second plate 35, wherein the first plate 34 and the second plate 35 are respectively The first flange 34a and the second flange 35a for providing the buffer region were formed. Further, in order to absorb the vibration of the strut bar 28, a first damping rubber 18 is disposed between the rubber support 32 and the first plate 34 of the strut bar 28, and for the same purpose, The second damping rubber 36 is inserted between the second plate 35 and the washer 38, and then the double nut 40 is fastened to be assembled.

In the conventional structure for mounting a strut bar for a vehicle having such a configuration, since the first flange 34a of the first plate 34 and the second flange 35a of the second plate 35 are in direct frictional contact, If a strong shock or severe vibration is transmitted from the road surface, these contact sites may be broken. In particular, in the case of a vehicle traveling on off-road or unpaved irregular roads such as mountains, the flanges 34a and 35a are damaged by the impact transmitted directly from the road surface, resulting in a sudden drop in ride comfort. have.

The present invention devised to solve such a problem is to assemble the shock absorbing material on the contact portion of the first plate and the second plate that secures one end of the strut bar to the bracket of the frame, so that the shock or vibration transmitted from the road surface while driving It is an object of the present invention to provide a mounting structure of an automobile strut bar that prevents the plate from being damaged by the plate and always maintains a good ride comfort.

1 is a cross-sectional view showing the configuration of a typical front wheel suspension

2 is an exploded perspective view showing a mounting structure of a conventional strut bar for a vehicle

Figure 3 is a cross-sectional view showing a mounting structure of the strut bar for automobiles of the present invention

4 is an enlarged cross-sectional view of portion A of FIG.

♣ Explanation of symbols for the main parts of the drawing

28: strut bar 32: rubber support

44, 54: 1st, 2nd damping rubber 46, 50: 1st, 2nd plate

46a, 50a: 1st, 2nd flange 48, 52: 1st, 2nd buffer

56: Washer 58: Nut

The object of the present invention described above is a strut bar, one end of which is fixed to the lower control arm by a ball joint and the other end of which is fixed to the bracket of the frame via a screw, a first plate and a second plate that couple the strut bar to the bracket, and a strut bar. In the mounting structure of an automobile strut bar comprising a first damping rubber disposed between the formed rubber support and the first plate, a second damping rubber sandwiched between the second plate and the washer, and a nut coupled to the threaded portion of the strut bar, By the mounting structure of the strut bar for automobiles, characterized in that it comprises a first buffer disposed on the outer peripheral portion of the first flange formed on the first plate, and a second buffer disposed on the inner peripheral portion of the second flange formed on the second plate. Is achieved.

Hereinafter, with reference to the accompanying Figures 3 and 4 will be described in detail with respect to the mounting structure of the strut bar for a vehicle according to a preferred embodiment of the present invention.

Figure 3 is a cross-sectional view showing a mounting structure of the strut bar for automobiles of the present invention, Figure 4 is an enlarged cross-sectional view of the portion A of Figure 3, the same parts as the conventional structure of the strut bar shown in Figs. Display.

First, as described in FIG. 2, one end of the strut bar 28 is fixed to the lower control arm (20 in FIG. 1) by a ball joint, and the other end is fixed to the bracket 42 of the frame through the threaded portion 28a. do. Here, the first plate 46 is disposed on one side of the bracket 42, the second plate 50 is disposed on the other side. In addition, the first damping rubber 44 is disposed between the first plate 46 and the rubber support 32 of the strut bar 28, and the second damping rubber 54 between the second plate 50 and the washer 56. ) To absorb the vibration transmitted from the road surface to the strut bar 28.

The washer 56 was fitted to the outside of the second plate 50, and then the double nut 58 was fastened to the threaded portion 28a of the strut bar 28, whereby the nut 58 was removed by the washer 56. It will prevent loosening.

In the mounting structure of the strut bar according to the present invention having such a configuration as a method for damping the vibration of the strut bar 28, the first plate 46 and the second plate 50, respectively, the first buffer 48 And a second buffer member 52 were assembled together, which will be described in detail with reference to FIG. 4.

4 is an enlarged cross-sectional view of a portion A in FIG. 3.

As shown, in order to prevent damage to the strut bar 28 and absorb vibration to some extent, a first buffer 48 is attached to the outer circumferential portion of the first flange formed on the first plate 46. A second buffer 52 is attached to the inner circumferential portion of the second flange formed on the second plate 50.

Thus, when the strut bar 28 flows, the first flange 46a of the first plate 46 and the second flange 50a of the second plate 50 move along the longitudinal direction of the strut bar 28. The damping action of the first buffer 48 and the second buffer attached to the flanges 46a and 50a absorbs vibration and damages the first plate 46 and the second plate 50. To prevent it.

Here, it is preferable that the first buffer 48 and the second buffer 52 disposed on the first flange 46a and the second flange 50a are made of rubber having excellent elasticity.

Next will be described the process of assembling the strut bar according to the present invention having such a configuration to the bracket attached to the frame.

First, one end of the strut bar 28 is fixed to the lower control arm 20 by a ball joint, and then the first damping rubber 44 is fitted to the rubber support 32 at the other end. Next, the first buffer member 48 attached to the first flange 46a of the first plate 46 is inserted into the assembly hole 42a of the bracket 42.

Next, the second plate 50 is inserted from the other side of the bracket 42 opposite to the first plate 46. At this time, the first attached to the inner peripheral portion of the second flange 50a of the second plate 50 on the outside of the first buffer member 48 attached to the outer peripheral portion of the first flange 46a formed on the first plate 46 2 Insert the buffer 52 to assemble. After assembling in this way, the second damping rubber 54 and the anti-loosening washer 56 are sequentially inserted to the outside of the second plate 50, and then the double nut 58 is fastened to complete the assembly.

In the strut bar 28 assembled as described above, when the vehicle oscillates by traveling on an irregular road surface, the vibration or shock transmitted to the strut bar 28 is transmitted to the first damping rubber 44 and the second damping rubber 54. At the same time, the minute shock and the vertical vibration are sufficiently absorbed by the first shock absorber 48 and the second shock absorber 52 of the present invention, so that it is not transmitted to the vehicle body, thereby improving the riding comfort.

According to the mounting structure of an automobile strut bar according to the present invention described above, by attaching a buffer material made of rubber to each of the first flange formed on the first plate and the second flange formed on the second plate, By preventing direct contact of the second plate to prevent damage and at the same time absorbing the vibration of the strut bar, there is an effect that can always maintain a good ride comfort.

Claims (2)

One end is fixed to the lower control arm 20 by a ball joint and the other end is connected to the bracket 42 of the frame via the threaded portion 28a, and the strut bar 28 is connected to the bracket 42. A first damping rubber 44 disposed between the first plate 46 and the second plate 50 and the rubber support 32 formed on the strut bar 28 and the first plate 46. And a second damping rubber 54 fitted between the second plate 50 and the washer 56 and a nut 58 coupled to the threaded portion 28a of the strut bar 28. In the mounting structure of the first buffer 46 formed in the first plate 46 formed in the outer peripheral portion of the 48, and the second flange 50a formed in the second plate 50 of the Mounting structure of a strut bar for a vehicle, characterized in that it comprises a second buffer member (52) disposed in the inner circumference. 2. The mounting structure of an automobile strut bar according to claim 1, wherein the first shock absorber (48) and the second shock absorber (52) are made of rubber.