Spring having coils of varying diameters
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United States of America Patent
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-
Nov 19, 2002
Grant Date -
Sep 12, 2002
app pub date -
Mar 9, 2001
filing date -
Mar 9, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
A spring includes intermediate coils of larger and smaller diameter so that upon compression of the spring the smaller diameter coil may nest within one of the large diameter coils, thereby reducing the overall length of the spring without causing the coils to come in contact with one another. The spring may be used in automotive vehicle suspension assemblies and other applications. The axis of the smaller coil may be offset from the axes of the other coils, thereby providing a spring in which one side is softer and the other is stiffer, so that upon compression the spring bows or deflects along a curved line. In addition to the small diameter coil being offset from the remaining coils, the wire diameter of one or more of the coils may be changed to affect the local stiffness of the spring.
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