Gas actuating mechanism for a bicycle derailleur

Details Gas actuating mechanism for a bicycle derailleur Gas actuating mechanism for a bicycle derailleur

1999-07-22

2000-12-12

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 78, F16H 6100, F16H 6300

Patent

active

06159119&

ABSTRACT:
A gas actuated derailleur for a bicycle includes a base member, a movable member supporting a chain guide, a coupling mechanism coupling the base member to the movable member so that the movable member moves relative to the base member, and an actuation mechanism responsive to compressed gas for causing the movable member to move relative to the base member.

REFERENCES:
patent: 3742777 (1973-07-01), Mathauser
patent: 4352503 (1982-10-01), Cotter
patent: 4854191 (1989-08-01), Nagano
patent: 5358451 (1994-10-01), Lacombe et al.
Hydraulics & Pneumatics, Jul. 1982, vol. 35, No. 7, p. 14, "Air shifts bicycle gears . . . automatically."

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