Multi-gear free wheel assembly for derailleurs for bicycles

Details Multi-gear free wheel assembly for derailleurs for bicycles Multi-gear free wheel assembly for derailleurs for bicycles

1980-11-07

1984-09-18

Murtagh, John E.

Endless belt power transmission systems or components

Positive drive pulley or guide roll

And additional coaxial surface for engaging same belt in...

192 64, 403349, F16H 5530, B25G 316, F16D 2300

Patent

active

044721633

ABSTRACT:
The invention concerns a multi-gear free wheel assembly, in particular for derailleurs for bicycle, comprising a sprocket mounted on a hub by means of a unidirectional clutch, characterized by the fact that the toothed wheels on the sprocket form a single whole with a bell which can be solidly coupled to said sprocket by locking means which are manually connectable and disconnectable without the aid of tools, said bell being held firm by a pressure spring.

REFERENCES:
patent: 1130726 (1915-03-01), Greve
patent: 3168836 (1965-02-01), Militana
patent: 3900088 (1975-08-01), Ozaki

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