Land vehicles – Wheeled – Occupant propelled type
Reexamination Certificate
2004-05-13
2008-11-04
Morris, Lesley D. (Department: 3611)
Land vehicles
Wheeled
Occupant propelled type
C280S259000, C280S253000, C280S257000, C280S255000, C475S297000, C475S289000, C475S296000, C475S312000
Reexamination Certificate
active
07445223
ABSTRACT:
The present invention relates to a bicycle drive unit that moves forward and backward and idles upon clockwise and counterclockwise pedaling, comprising: a drive shaft having one end located in an inner bearings of an internal bearing housing integrally formed with a rotary plate and the other end fixed to a clockwise one-way clutch and the inner wheel of a counterclockwise one-way clutch by means of a sunk key; a counterclockwise one-way clutch having a central gear press-fitted on its outer wheel; a ring gear engaged with the turnabout gear; a gear flange connected to a ring gear by means of a locking screw; a bearing housing of a dual structure consisting of an outer bearing housing having outer bearings; a brace attached to the outer circumference of the outer bearing housing by means of the locking screw; a detent pin unit for curving the internal bearing housing and the rotary plate; and a bicycle backward movement control unit having a hand lever and a detent latch.
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Arce Diaz Marlon A
Bame James E.
IPLA P.A.
Morris Lesley D.
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