Multiple sprocket assembly for a bicycle

Details Multiple sprocket assembly for a bicycle Multiple sprocket assembly for a bicycle

1996-12-20

1999-09-21

Jeffery, John A.

Endless belt power transmission systems or components

Positive drive pulley or guide roll

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

474158, 474 78, F16H 900, F16H 5512, F16H 5530

Patent

active

059546042

ABSTRACT:
A plurality of sprockets are coaxially mounted together, wherein a spacing between each pair of adjacent sprockets is less than a thickness of at least one of the plurality of sprockets. In another embodiment of the invention, a plurality of sprockets are coaxially mounted together, wherein a spacing between each pair of adjacent sprockets is less than or equal to approximately 2.0 millimeters. In yet a further embodiment of the present invention, at least ten sprockets are coaxially mounted together to form a first free side sprocket surface facing laterally outwardly and a second free side sprocket surface facing laterally inwardly. A spacing between the first free side sprocket surface and the second free side sprocket surface is less than or equal to approximately 50 millimeters.

REFERENCES:
patent: 4121474 (1978-10-01), Arregui Suinaga
patent: 5205794 (1993-04-01), Browning
patent: 5292286 (1994-03-01), Lan
patent: 5362278 (1994-11-01), Bergles et al.
patent: 5569107 (1996-10-01), Mu

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