JPS6154608B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a suspension system for a motor vehicle, and more particularly to a front wheel suspension system for a motor vehicle.

As a front wheel suspension system for an automobile, a knee-action suspension system, that is, an independent suspension system (hereinafter referred to as an independent suspension system) is usually used.
In this independent suspension system, the left and right ends move independently, so when the vehicle makes a curve at high speed or drives on a bumpy road, the vehicle tilts significantly, and this tilt causes rolling, or swaying. Therefore, in order to prevent this horizontal shaking, it is preferable that the independent suspension system includes a stabilizer. This stabilizer consists of a roughly U-shaped torsion bar, which transmits the displacement on one side to the other side to reduce the difference in the amount of displacement on both sides and to restore the inclination to its original state as soon as possible. It is something that works. This stabilizer is effective to some extent not only when the road is uneven, but also when the load is unevenly applied to the car body, but when only the driver is on board, that is, when there is only one person on board, the driver's seat side of the car body sinks. It is not possible to completely prevent the vehicle from tilting. This tilting of the vehicle body not only makes the vehicle look unsightly, but also increases torque steering, which impairs straight-line driving performance.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a suspension system for an automobile that can reduce the above-mentioned inclination of the vehicle height when one person is riding and can eliminate various drawbacks derived from the inclination of the vehicle height. be.

The suspension system for an automobile according to the present invention has a stabilizer connected between the left and right suspension arms so as to receive a torsional load when the arms undergo relative displacement, and the stabilizer is connected to the left and right suspension arms. A torsional load is applied in advance when the vehicle is attached to the vehicle, and the direction of the torsional load is such that the torsional load increases when one person rides the vehicle. Specifically, the stabilizer consists of a substantially U-shaped member with two arms at both ends, and the stabilizer is bent in advance so that the arm on the driver's seat side is located relatively lower than the arm on the passenger seat side. It is attached to the left and right suspension arms with the two arms positioned at the same height. Alternatively, a stabilizer consisting of a substantially U-shaped member with two arms formed approximately parallel to each other on both ends within the same plane can be positioned upward by twisting the arm on the driver's seat side relative to the arm on the passenger seat side. You can also attach it to the left and right suspension arms while it is in this state.

According to the automobile suspension system of the present invention having the configuration described above, the stabilizer is attached to the left and right suspension arms, and the stabilizer is attached to the driver's seat of the vehicle body by the elastic force mainly generated by the torsion of the stabilizer. Since it acts to lift the side of the car, the inclination of the car body when riding alone is reduced, resulting in a good appearance and especially
Torque steering in FF cars is reduced,
Improves straight-line driving performance.

Hereinafter, a suspension system for an automobile according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing the entire front wheel suspension system 1 for an automobile according to the present invention. As shown in FIG. 1, the front wheel suspension system 1 is a strut-type front wheel suspension system, and the lower end is integrated with a knuckle (not shown), and the upper end is integrated with a rubber bush (not shown). The left and right shock absorbers 2 are attached to the vehicle body B by means of the left and right transverses, one end of which is connected to the lower end of the shock absorber via a ball joint (not shown), and the other end of which is fixed to the vehicle body 8. It is composed of a link, that is, a suspension arm 3, and a stabilizer 4 that connects the left and right suspension arms 3, and suspends the front wheel 5. In addition, the symbol 6 in the figure
7 indicates a suspension member, and 7 indicates a drive shaft. The main parts of the front wheel drive device 1 of the present invention are shown in the bottom view of FIG.

As is clear from FIG. 2, the stabilizer 4 is comprised of a substantially U-shaped member having a driver seat side arm 4A and a passenger seat side arm 4B facing each other. In order to prevent the vehicle body from tilting when one person is riding, the stabilizer 4 is temporarily subjected to the same load as when a person is in the driver's seat when attached to the left and right suspension arms 3. It is attached to the suspension arm 3 in a twisted state.

To apply a load to the stabilizer 4 in this way, for example, the stabilizer 4 must be twisted in advance so that the driver's seat arm 4A is located below the passenger seat arm 4B in an unloaded state as shown in FIG. This stabilizer 4 is attached to both arms 4.
It is sufficient to attach it to the suspension arm 3 by torsionally elastically deforming it so that A and 4B are located on the same plane.

Or, replace the stabilizer 4 with both arms 4 as before.
A and 4B are formed so that they are located in the same plane, and as shown in FIG.
It may be attached to the left and right suspension arms 3 while being twisted and positioned upward.

In short, when the vehicle body is horizontal to the road surface, the stabilizer 4 may be attached to the arm with the driver's seat side twisted upwards compared to the other side.

As described above, an initial load is applied to the stabilizer, and the stabilizer in the attached state exerts an upward force on the driver's seat side of the vehicle body. Therefore,
According to the suspension system of the present invention, the inclination of the vehicle body when one person is riding is eliminated without using additional means such as spacers, and the straight-line running performance is improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the overall structure of the suspension system for an automobile according to the present invention, FIG. 2 is a bottom view showing the main parts of the suspension system shown in FIG. 1, and FIG. FIG. 4 is a side view showing a stabilizer used in the suspension system shown in FIG. 4, and is a diagram showing a modification of the suspension system of the present invention. 1... Front wheel suspension system, 2... Shock absorber, 3... Suspension arm, 4... Stabilizer, 4A... Driver's seat side arm, 4B... Passenger seat side arm, 5... Front wheel, B... Vehicle body .

Claims (1)

[Scope of Claims] 1. A suspension system for an automobile including a stabilizer connected between left and right suspension arms so as to receive a torsional load when a relative displacement occurs in the left and right suspension arms, wherein the stabilizer has been torsioned in advance. It is attached to the left and right suspension arms in a loaded state, and the direction of the pre-applied torsional load is determined such that the torsional load increases as the load on the driver's seat side increases. Automobile suspension system. 2. The stabilizer consists of a substantially U-shaped member having two substantially parallel arms formed at both ends, and in a no-load state, the arm on the driver's seat side is positioned relative to the arm on the passenger's seat side. The stabilizer is formed in a twisted shape so as to be positioned downwardly, and the stabilizer is attached to the left and right suspension arms with the two arms positioned at the same height. A suspension system for an automobile according to claim 1. 3. The stabilizer is comprised of a substantially U-shaped member having two arms formed substantially parallel to each other on both ends within the same plane, and the stabilizer is arranged so that the arm on the driver's seat side is positioned upwardly relative to the arm on the passenger's seat side. 2. The suspension system for an automobile according to claim 1, wherein the suspension system is attached to the left and right suspension arms in a state where the suspension arm is positioned at the left and right suspension arms.