Multiple sprocket assembly for bicycle

Details Multiple sprocket assembly for bicycle Multiple sprocket assembly for bicycle

1998-01-13

1999-10-26

Jeffery, John A.

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, F16H 900, F16H 5512

Patent

active

059718781

ABSTRACT:
A multiple sprocket device for a bicycle includes a chain and two or more sprockets having different sizes and having a number of peripheral teeth for engaging with the chain. A number of guiding members are secured to the peripheral portion of the sprockets for securing the chain to the larger sprocket before the chain is engaged with the teeth of the larger sprocket when the chain is moved from the smaller sprocket to the larger sprocket. The guiding members each has a hook for engaging with the chain and for securing the chain to the larger sprocket.

REFERENCES:
patent: 5078653 (1992-01-01), Nagano
patent: 5087226 (1992-02-01), Nagano
patent: 5192248 (1993-03-01), Nagano
patent: 5413534 (1995-05-01), Nagano
patent: 5738603 (1998-04-01), Schmidt et al.

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