Machine element or mechanism – Gearing – Interchangeably locked
Patent
1999-07-19
2000-07-18
Marmor, Charles A
Machine element or mechanism
Gearing
Interchangeably locked
74331, 74348, 745942, 74665GA, F16H 310, F16H 334
Patent
active
060891149
ABSTRACT:
A multi-speed transmission for bicycles, comprising: a housing including spaced, opposing face plates, each face plate having a pedal shaft opening and a secondary shaft opening; a pedal shaft rotatably disposed within said pedal shaft openings; a secondary shaft disposed within said secondary shaft openings, wherein the secondary shaft is spaced from the pedal shaft and substantially parallel thereto; and a pedal shaft set of gears mounted on the pedal shaft between the face plates, comprising: (1) a first set of pedal shaft gears mounted on the pedal shaft, (2) a second set of pedal shaft gears rotatably mounted on the pedal shaft, and (3) a third set of pedal shaft gears rotatably mounted on the pedal shaft including first means for selective driving engagement with the second set of pedal shaft gears, the third set of pedal shaft gears including a drive gear means.
REFERENCES:
patent: 652275 (1900-06-01), Krastin
patent: 2538625 (1951-01-01), Moore
patent: 3162058 (1964-12-01), Matthew
patent: 3209609 (1965-10-01), Kirschmann
patent: 3920263 (1975-11-01), Bundschuh
patent: 5553510 (1996-09-01), Balhorn
Ho Ha
Marmor Charles A
Park John K.
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