BICYCLE GEARSHIFT
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United States of America Patent
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-
N/A
Issued Date -
Apr 30, 2009
app pub date -
Oct 15, 2008
filing date -
Oct 25, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The disclosed bicycle gearshift (20) includes a support member (22) configured for mounting on a bicycle frame, a driving member (24) for driving of a bicycle chain, and at least one articulation arm (28) to movably connect the driving member (24) to the support member (22). The articulation arm (28) is connected to at least one portion of the support member (22) and the driving member (24) so that it can rotate about a respective rotational axis (30a) through at least one respective connecting pin (40a) extending along the rotational axis (30a). At least one first rolling element (54) is operatively arranged in the radial direction between the connecting pin (40a), one of the articulation arms (28), the portion of the support member (22), and the driving member (24).
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