Helical spring and suspension gear

A suspension device and vehicle technology, which is applied in the field of coil springs and vehicle suspension devices, and can solve the problems of impossibility to apply to occasions with limited installation space, low-cost manufacturing, large buckling displacement, etc.
CN100365315CActive Publication Date: 2008-01-30NHK SPRING CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
NHK SPRING CO LTD
Publication Date
2008-01-30

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Abstract

To provide a coil spring with a load axis offset from a geometric axis, and to provide a vehicular suspension system using the same. The coil spring 1 is wound with its winding diameter larger at an intermediate in the axial direction than at the end. At one sidewise position 8, the contour of a coil is aligned almost straight to the axial direction, while at the other sidewise position 9, the contour of the coil is swollen to be protruded outward. Namely, the contour of the coil is in a D-shape in view from a specified sidewise direction. Thus, the coil spring is actualized with the load axis offset in parallel to the axis without being affected by buckling deformation.
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Description

technical field

[0001] The present invention relates to a coil spring having a load shaft offset with respect to a geometric central axis and a suspension device for a vehicle using the coil spring. Background technique

[0002] In the prior art such as a strut type suspension device for automobiles etc., there is a suspension device in which an assembly consisting of a cylindrical shock absorber and a compression coil spring is assembled in such a manner that a vehicle body and a wheel bracket are connected, wherein , The barrel-type shock absorber has an oil cylinder filled with oil and a piston accommodated in the oil cylinder, and a compression coil spring is arranged around the barrel-type shock absorber. However, the force input from the tire does not necessarily coincide with the axis of the shock absorber, and since it is accompanied by a lateral load, there is a problem that the lateral load and moment act on the sliding part between the cylinder and the piston of t...

Claims

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