Bicycle crankset

Details Bicycle crankset Bicycle crankset

1999-07-14

2000-12-26

Green, Mary Ann

Machine element or mechanism

Elements

Cranks and pedals

F16C 902

Patent

active

06164157&

ABSTRACT:
A bicycle crankset includes a chain ring, a sleeve, two bearing sets, two bearings, two fastening nuts, two rubber washers, a retaining washer, a tightening nut, and a crank arm provided with outer threads. The crankset is mounted on the crank arm by the sleeve in conjunction with the retaining washer and the tightening nut which is engaged with the outer threads of the crank arm. The two fastening nuts are provided with a circular groove for retaining the rubber washer which is semicircular in its cross section and is provided at both edges on the flat side with an angled corner to facilitate the inserting of the rubber washer into the circular groove of the fastening nuts.

REFERENCES:
patent: 4950521 (1990-08-01), Takamura et al.

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