Machine element or mechanism – Elements – Cranks and pedals
Patent
1998-03-10
1999-08-03
Herrmann, Allan D.
Machine element or mechanism
Elements
Cranks and pedals
745944, B62M 308, G05G 114
Patent
active
059310537
ABSTRACT:
A bicycle pedal assembly includes a pedal body having a front part formed with a fixed first jaw projection, a rear part, an intermediate part to mount the pedal body rotatably on an axle, and a cavity formed in the rear part and opened at a top side of the pedal body. A first retaining member has a first spring seat received in the cavity, and an elongated flank formed on top of the first spring seat. The flank has two spaced apart forwardly projecting second jaw projections opposite to the first jaw projection. A second retaining member has a second spring seat which is juxtaposed to the first spring seat in the cavity and which has a top end that projects rearwardly and upwardly from the cavity below the flank. A pivot shaft extends through the cavity to mount pivotally the first and second spring seats thereon. A first torsion spring is sleeved around the pivot shaft in the first spring seat to bias the flank and the second jaw projections to move forwardly. A second torsion spring is sleeved around the pivot shaft in the second spring seat to bias the top end of the second spring seat to move forwardly. A cover plate is disposed at the top side and is mounted on the rear part of the pedal body to cover the cavity.
REFERENCES:
patent: 4928549 (1990-05-01), Nagano
patent: 5697262 (1997-12-01), Chen
patent: 5848560 (1998-12-01), Lin
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