Bicycle, a front fork and a shock absorber mechanism for the front fork of a bicycle
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United States of America Patent
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-
Sep 16, 1997
Grant Date -
N/A
app pub date -
Dec 22, 1995
filing date -
Dec 24, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A telescoping front fork of a bicycle which has a spring system which acts between an upper cylindrical housing and a lower cylindrical housing and includes at least one suspension spring, a supplemental spring and a spring in the rebound direction, each of which is made of a compressible elastic foamed, or expanded cellular elastomer. The spring constant of the supplemental spring is lower than that of the suspension spring. This arrangement has the advantage that acceleration peaks are reduced during the transition from a situation in which the two cylindrical houses are at rest and one in which the two cylindrical houses slide in relation to one another. The breakaway force is oriented to the weaker supplemental spring in connection with the rebound direction spring and as the support force increases, the suspension spring is compressed on a delayed basis, without any measurable additional breakaway force.
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