JP3023419B2 - Automotive suspension equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension device for a motor vehicle, and more particularly to a suspension device for a rear wheel of a strut type vehicle.

[0002]

2. Description of the Related Art Conventionally, in a strut-type rear wheel suspension device for a vehicle, one end is pivotally supported by a wheel support for supporting the rear wheel via a bush, and the other end is connected to a body frame via the same bush. It has a plurality of suspension arms consisting of an upper control arm and a lower control arm which are pivotally supported, and a bracket is provided on any of these suspension arms to pivotally support the lower end of the shock absorber damper and provide another suspension arm. A dedicated bracket is provided to connect and support the free end of the stabilizer extending in the vehicle width direction (for example, see Japanese Utility Model Laid-Open No. 47611/1985).

[0003]

However, in the above-mentioned conventional suspension device, a dedicated bracket is provided on the suspension arm to connect and support the free end of the stabilizer. Therefore, the torsional force acting in the direction in which the suspension arm is twisted is directly transmitted to the suspension arm, and torsion is applied to the bushes arranged at both ends of the suspension arm, and the durability of the bush decreases. At the same time, the suspension arm swings due to the bush being inclined with respect to the shaft, so that a smooth swinging operation cannot be obtained, and there is a possibility that ride comfort may be degraded.

An object of the present invention is to prevent the torsional force from the stabilizer from being transmitted to the suspension arm, thereby improving the durability of the bushes arranged at both ends of the suspension arm and improving the riding comfort. An object of the present invention is to provide an automobile suspension device.

[0005]

According to the present invention, there is provided a suspension apparatus for an automobile, wherein a suspension arm for supporting an axle is provided with a damper having a lower end pivotally supported via a bolt, and one end of the bolt is connected to the suspension arm. The control link extends from the suspension arm in the front-rear direction of the vehicle body, and a control link that supports the free end of the stabilizer is pivotally supported on this extension. The torsional force generated by the stabilizer is absorbed by the bolt as the control link swings Therefore, the durability of the bushes arranged at both ends of the suspension arm can be improved, and the suspension arm can swing smoothly to improve the riding comfort.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A suspension apparatus to which an embodiment of the present invention is applied will be described with reference to FIGS. 1 to 3. FIG. Outer end 2A on the vertex side of the mold
Is swingably connected via a bush, and the lower mounting seat 1C
The outer end of the lower control arm 3 is swingably connected via a bush, and the outer end 5B of the toe control link 5 can swing on the intermediate mounting seat 1B between the upper mounting seat 1A and the lower mounting seat 1C. It is connected to.

The inner end 2B of the upper control arm 2
2B is swingably connected to mounting seats 6A, 6A provided on a rear frame 6, which is a vehicle body component, via a bush. An inner end of the lower control arm 3 connects a rear differential 110 to the wheel support 1. An inner end of the toe control link 5, that is, a vehicle body side end 5 </ b> A is connected to a mounting seat provided on a cross member 14 located behind the rear axle 11 through a bush via an oil-filled bush. Mounting seat 6B provided on 6
Is swingably connected to the

A trailing end of the trailing link 4 is swingably connected near an outer end of the lower control arm 3, and a front end of the trailing link 4 is swingably connected to a mounting seat provided on the rear frame 6. I have.

A suspension cross member 70 extending in the width direction of the vehicle body and having both ends connected to rear frames 6 disposed on both sides is provided with a center member 8 disposed at the center, and both sides of the center member 8 and the rear frame. 6 and a side member 7 whose both ends are connected to each other.

A shock absorber having an upper end fixed to the vehicle body near an outer end of the upper control arm 2.
The lower end 12 of the shock absorber 13 is attached with the bolt 20 across the upper control arm 2, and the one end of the control link 9 is extended by extending the bolt 20 rearward. A free end of a rear stabilizer 10 is swingably connected to the other end of the control link 9 and is swingably connected to the other end of the control link 9. The rear stabilizer 10 is supported on the vehicle body by a bracket 10A at an intermediate position. ing.

With this configuration, when a torsional force is generated in the rear stabilizer 10 by a bump or the like of the rear wheel T, the free end of the rear stabilizer 10 swings the control link 9 around the bolt 20, and the bolt 20 Since the torsion load is borne and the torsional force is not transmitted to the upper control arm 2, the durability of the bushes disposed at both ends of the upper control arm 2 is improved, and the upper control arm 2 Swings smoothly to improve ride comfort performance.
Also, since the lower end 12 of the damper of the shock absorber 13 is connected to the upper control arm 2 so as to straddle the upper control arm 2, the load from the shock absorber 13 is applied from a direction perpendicular to the upper control arm 2, Twisting does not occur, and a special bracket is not required, so that the assembling work is facilitated.

[0012]

According to the present invention, the lower end of the damper is pivotally supported by a bolt over the suspension arm, the bolt is extended in one direction, and a control link for supporting the free end of the stabilizer is pivotally supported by the bolt extension. As a result, when a torsional force is generated in the stabilizer due to wheel bumps, the control link swings around the bolt at the free end of the stabilizer, and the torsional force is received by the bolt. Since it does not transmit force, it improves the durability of the bushes located at both ends of the upper control arm,
The upper control arm swings smoothly to improve ride comfort. In addition, since the lower end of the damper of the shock absorber is connected to the upper control arm so as to straddle the upper control arm, the load from the shock absorber is applied from a direction perpendicular to the upper control arm, and there is no torsion. At the same time, a special bracket is not required, and the assembling work is facilitated.

[Brief description of the drawings]

FIG. 1 is a plan view of a rear suspension device to which the present invention is applied.

FIG. 2 is a front view of a rear suspension device to which the present invention is applied.

FIG. 3 is a side view of a rear suspension device to which the present invention is applied.

[Explanation of symbols]

 2 Upper control link 3 Lower control link 9 Control link 10 Rear stabilizer 13 Damper device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60G 21/055 B60G 3/18

Claims (1)

(57) [Claims] A suspension arm for supporting an axle is provided with a damper having a lower end pivotally supported via a bolt, and one end of the bolt is extended from the suspension arm in the longitudinal direction of the vehicle body. A control link for supporting a free end of the stabilizer on the vehicle.