192 clutches and power-stop control – Clutches – Automatic
Patent
1993-12-06
1995-02-21
Marmor, Charles A.
192 clutches and power-stop control
Clutches
Automatic
192 41R, 192 64, 192 84PM, 74143, 280253, F16D 4106
Patent
active
053907736
ABSTRACT:
A clutch mechanism for use on a conventional bicycle which permits independent actuation of both pedals and provides a driving force through 100% of a pedal stroke. The clutch is generally comprised of a single, outer, cylindrical rotor which extends between the two pedals, and two internal rotors, respective to each pedal, positioned within the outer rotor. The internal rotors each include respective longitudinally extending, annularly spaced webs and longitudinally extending V-shaped portions integrally positioned between successive webs. In addition, magnets are attached to each rotor and positioned at the vortices of the V-shaped portions. The clutch further includes a set of cylindrical rods positioned between the two rotors which become wedgingly engaged between the magnets and the outer rotor when the pedal is actuated by a user of the bike. In addition, each pedal is attached to the frame of the bike via a spring which prohibits the pedal from being rotated a full 360.degree.. After the pedal has been extended through a predetermined stroke, the resiliency of the spring causes the return of the pedal to its original position. This, in essence provides for 100% of the user's energy to be converted into useful work.
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Marmor Charles A.
McGuire George R.
Pitts Andrea
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