Suspension coil spring
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United States of America Patent
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Apr 23, 2019
Grant Date -
Jan 19, 2017
app pub date -
Sep 27, 2016
filing date -
Mar 28, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
An end turn portion of a coil spring includes a first portion, a second portion, and a third portion. The first portion is always in contact with a spring seat irrespective of the magnitude of a load applied to the coil spring. The second portion contacts the spring seat when the load applied to the coil spring is large, and is separated from the spring seat when the load is small. The third portion is always separated from the spring seat irrespective of the magnitude of the load. An insulating sheet made of a material having rubber elasticity is attached to a lower surface of a wire at the end turn portion by means of adhesive bonding. The insulating sheet is provided on a lower surface of a region including at least the second portion.
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