JPS6126082Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a helper mounting structure in a wheel suspension system.

A wheel suspension system for an automobile consists of a wheel support member such as a suspension arm that supports the wheel on the vehicle body side so that the wheel can swing vertically, a main spring such as a coil spring or torsion bar that buffers the vertical swing of the wheel, and the wheel support member mentioned above. It is composed of a helper made of elastic material such as rubber that is interposed between the member and the vehicle body and restricts excessive deflection of the main spring. Normal vertical loads are supported by the spring force of the main spring, and large vertical loads are supported by the spring force of the main spring. Usually, the support is provided by the elasticity of the helper.

However, in the case of a truck that has a wide load range during use, the spring constant of the main spring is determined so that the main spring provides a suitable buffering effect when a certain weight is loaded, that is, at a constant load. If this happens, the riding comfort when the vehicle is empty becomes extremely poor, which is extremely inconvenient for vehicles that are often used as cargo and passenger vehicles, such as light trucks.

The present invention aims to solve the above-mentioned conventional disadvantages with an extremely simple structure, and the present invention will be explained below with reference to the accompanying drawings.

In FIGS. 1 and 2, 1 is a helper made of an elastic material such as rubber, and 2 is a bracket on the vehicle body side. 3
A helper mounting member made of a spring steel plate, the mounting member 3 has a helper mounting surface 3a and a helper mounting surface 3.
It has a butt-shaped cross-sectional shape having a leg-shaped portion 3b formed by bending both sides of the leg-shaped portion a, and a mounting flange portion 3c formed by bending the tip of the leg-shaped portion 3b outward.

The helper 1 is fixed to the surface of the helper mounting surface 3a of the helper mounting member 3 made of the spring steel plate by, for example, baking, and an elastic material 4 such as rubber is fixed to the back surface of the helper mounting surface 3a. When the mounting flanges 3c and 3c are joined to the vehicle body side bracket 2 and fixed with bolts 5, nuts 6, etc., there is a predetermined gap between the end surface of the elastic material 4 provided on the back side of the helper mounting surface 3a and the vehicle body side bracket 2. The structure is such that h is formed.

In the above configuration, as shown in Fig. 3, when the vehicle is empty, the main spring of the wheel suspension system (not shown) supports the upward vibration, and the suspension arm supports the vertical vibration in the range of A to B, that is, the helper 1. It is supported by the vertical deflection of the helper mounting member 3 mainly made of a spring steel plate, and in the range of A to C, that is, when overloaded, the elastic member 4 hits the vehicle body side bracket 2 and the helper 1
The natural frequencies of each are set so that 1≒2≒3 so as to be supported by compressive deformation of .

According to the present invention, which overcomes such a configuration, an accurate spring constant corresponding to each cargo loading condition can be obtained with an extremely simple configuration that only incorporates a helper mounting member made of a spring steel plate into the helper. It is possible to significantly improve riding comfort under all conditions, and together with its low cost and easy assembly, it can bring about great practical effects.

The length of the helper mounting surface 3a of the helper mounting member 3 made of a spring steel plate can be arbitrarily selected in consideration of the relationship with the durability of the spring steel plate.

Further, although the above embodiment shows an example in which the helper is installed on the vehicle body side, the present invention can also be applied to a case where the helper is installed on the side of a wheel support member such as a suspension arm so as to face the vehicle body side. It goes without saying that there is one thing.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a bottom view of FIG. 1, and FIG. 3 is an explanatory diagram showing the spring characteristics of the wheel suspension system according to the present invention. 1... Helper, 2... Vehicle side bracket, 3...
...Helper mounting member, 3a...Helper mounting surface, 3b
...Legs, 3c...Mounting flange, 4...Elastic material.

Claims (1)

[Scope of utility model registration request] A helper made of an elastic material such as rubber is fixed to the helper mounting surface of a helper mounting member made of a spring steel plate, and the helper mounting member is supported on the side of the wheel support member that supports the wheel so that it can move up and down, or on the vehicle body side opposite thereto. A helper mounting structure for a wheel suspension system, characterized in that the helper is mounted on one of the two sides with a predetermined gap so that the helper mounting surface can be elastically deformed when the tip of the helper hits the other side.