Protective plate for bicycle chain

Details Protective plate for bicycle chain Protective plate for bicycle chain

1998-02-13

2000-09-12

Bucci, David 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...

474 69, F16H 900, F16H 5900

Patent

active

061170321

ABSTRACT:
A protective plate for attachment to a bicycle frame for guiding a chain includes a plate body having a first side for facing laterally toward the bicycle frame, a second side for facing laterally away from the bicycle frame, a lower portion, and an upper portion. The lower portion of the first side of the plate body is structured to align with a bottom bracket of the bicycle, and a positioning abutment member is disposed on the upper portion of the first side of the support body. An upper surface of the positioning abutment member forms a positioning abutment for positioning a front derailleur to the bicycle frame. Additionally, a chain guiding abutment may be formed on the upper portion of the second side of the support body for guiding the chain as the chain shifts from a larger chainring to a smaller chainring.

REFERENCES:
patent: 4330137 (1982-05-01), Nagano
patent: 4337933 (1982-07-01), Egami
patent: 5496222 (1996-03-01), Kojima et al.
patent: 5620384 (1997-04-01), Kojima et al.
patent: 5728018 (1998-03-01), Terada et al.
patent: 5846148 (1998-12-01), Fujii

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