Machine element or mechanism – Elements – Cranks and pedals
Patent
1992-06-04
1995-01-10
Luong, Vinh T.
Machine element or mechanism
Elements
Cranks and pedals
745341, 384545, 384512, G05G 114, F16C 1300
Patent
active
053796659
ABSTRACT:
A bicycle pedal for attaching to a crank arm having a pedal shaft including an attachment portion formed at one end thereof and attached to the crank arm, the pedal shaft defining a small diameter portion formed adjacent the other end thereof and having a smaller diameter than the attachment portion, and a first and a second ball bearings arranged in a region of the small diameter portion and spaced apart from each other axially of the pedal shaft. A needle bearing is disposed adjacent the ball bearings, and a pedal body is rotatably supported on the small diameter portion through the first and second ball bearings and the needle bearing. The pedal body defines at least one tread on a surface thereof. The needle bearing may be disposed between the first ball bearing and second ball bearing, or may be disposed closer than the first and second ball bearings to the crank arm or closer than the first and second ball bearings to an extreme end of the pedal shaft.
REFERENCES:
patent: 3760653 (1973-09-01), Hagenah
patent: 4398434 (1983-08-01), Kimura
patent: 4825719 (1989-05-01), Romano
patent: 4838115 (1989-06-01), Nagano
patent: 4873890 (1989-10-01), Nagano
patent: 5207118 (1993-05-01), Chen
Luong Vinh T.
Shimano Inc.
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