Free wheel rotary body structure of a bicycle

Details Free wheel rotary body structure of a bicycle Free wheel rotary body structure of a bicycle

1996-11-19

1999-07-13

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Velocipede free wheel

192 46, F16D 4130

Patent

active

059213639

ABSTRACT:
A free wheel rotary body structure for use in a bicycle is disclosed. It includes a free wheel kernel having a pair of axially extending ratchet pawl bearings at diametrically opposite positions relative to each other and a pair of ring grooves. The rotary body structure also includes first and second sets of one-way clutches. Each of the one-way clutches includes a c-spring and a pair of ratchet pawls. The pair of c-springs are received in the pair of ring grooves, respectively, of the free wheel kernel, and the pairs of ratchet pawls are received in the diametrically opposing pawl bearings, respectively, of the free wheel kernel. The pair of ratchet pawls in the first set of one-way clutch are of different shapes and dimensions from the pair of ratchet pawls in the second set of one-way clutch, so as to form phase difference when one of each pair of the ratchet pawls is engaged with the ratchet teeth groove of the free wheel housing.

REFERENCES:
patent: 1429196 (1922-09-01), Dughera
patent: 4254852 (1981-03-01), Orozco
patent: 4363390 (1982-12-01), Eisend et al.
patent: 5518096 (1996-05-01), Lin
patent: 5642796 (1997-07-01), Tabe

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