Machine element or mechanism – Elements – Cranks and pedals
Patent
1995-02-06
1997-03-11
Luong, Vinh T.
Machine element or mechanism
Elements
Cranks and pedals
745941, 280236, 280238, 280259, 475300, B62M 1114, G05G 114
Patent
active
056090714
ABSTRACT:
A shiftable pedal bearing gearing for use in a pedal bearing of a type having a pedal bearing housing and a crank axle axially traversing the pedal bearing housing and carrying at least one pedal crank, for use in a bicycle or the like, includes a chainwheel mounted on the crank axle and a disk extending parallel to the chainwheel. Arranged between the chainwheel and the disk is a coupler which is rotatably mounted on the crank axle and movable in axial direction between two switching positions. The coupler, on the one hand, and the chainwheel and disk, on the other hand, have opposing sides of complementary configuration to allow interlocking or form-fitting connection at uniform surface pressure between said coupler and the chainwheel in one switching position and the disk in the other switching position.
REFERENCES:
patent: 504168 (1893-08-01), Morris
patent: 516933 (1894-03-01), Jacoby
patent: 544776 (1895-08-01), Souder
patent: 603326 (1898-05-01), Feingold
patent: 3944253 (1976-03-01), Ripley
patent: 4283069 (1981-08-01), Citelli
patent: 4583422 (1986-04-01), Boyd
patent: 5303942 (1994-04-01), Schlumpf
patent: 5435583 (1995-07-01), Foster
Feiereisen Henry M.
Luong Vinh T.
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