Type of the compact freewheel body for bicycles

Details Type of the compact freewheel body for bicycles Type of the compact freewheel body for bicycles

1996-10-16

1998-01-06

Schoeppel, Roger J.

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Including belt shiftable axially from one to another surface...

474160, 474903, F16H 908

Patent

active

057048592

ABSTRACT:
A new type of the compact freewheel body for bicycle includes a freewheel casing, a ball seat, a hub, two rows of steel balls, an adjusting ring and a clutch located in the hub. The ball ring at the top of a convention freewheel casing is moved to the bottom to become a ball seat. The distance between two rows of steel balls is increased. The freewheel body can be made more compact. Smaller gear seat may be used and thus increasing the speed ratio and improving mechanical strength of the gear set. The wobbling of the freewheel can be effectively reduced to make the freewheel running and gear shifting smoother and more reliable.

REFERENCES:
patent: 3648519 (1972-03-01), Nakata et al.
patent: 3900088 (1975-08-01), Ozaki
patent: 3942615 (1976-03-01), Craig
patent: 4121474 (1978-10-01), Suinaga
patent: 5324100 (1994-06-01), James
patent: 5480357 (1996-01-01), Liang

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