HUB RATCHET DRIVING DEVICE FOR BICYCLES
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United States of America Patent
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-
N/A
Issued Date -
Sep 15, 2011
app pub date -
Mar 9, 2010
filing date -
Mar 9, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A hub ratchet driving assembly includes a hub and a driving member is connected to an end of the hub. The driving member includes a driving portion which has first and second recesses defined in an outer surface thereof so as to receive a pawl and a spring member therein. A teeth ring is connected to the hub and includes multiple teeth in an inner periphery thereof. The spring member biases the pawl so as to provide a return force to the pawl. The pawl includes two ratchet teeth which are engaged with the teeth of the teeth ring. A positioning unit has a first positioning slot defined in the driving portion and a second positioning slot is defined in the pawl. A positioning ring is mounted to the first and second slots so as to prevent the pawl from disengaging from the driving portion in axial direction.
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