SHOCK ABSORBER
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United States of America Patent
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Issued Date -
Jan 28, 2016
app pub date -
Mar 24, 2014
filing date -
Mar 27, 2013
priority date (Note) -
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Abstract
A shock absorber includes expanding-side and contracting-side chambers formed in a cylinder, a housing that forms a pressurizing chamber, a free piston that partitions the pressurizing chamber into an expansive pressurizing chamber communicating with the expanding-side chamber and a contractive pressurizing chamber communicating with the contracting-side chamber, and expanding-side and contracting-side springs that exert biasing forces for suppressing the free piston from being displaced from a neutral position. The contracting-side spring has a non-linear characteristic by which the spring constant increases as it is compressed.
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