Single speed transmission for pedal-propelled vehicle

Details Single speed transmission for pedal-propelled vehicle Single speed transmission for pedal-propelled vehicle

1986-05-15

1987-09-22

Bonck, Rodney H.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74785, 74801, 280260, F16H 128, B62M 102

Patent

active

046947086

ABSTRACT:
A single speed planetary transmission located inside the wheel hub of a pedal-propelled vehicle such as a bicycle. The transmission is chainless and includes a pair of fixed ring gears, planetary gear carriers mounted for rotation with the drive shaft, planetary gears carried by the gear carriers and meshed with the fixed ring gears, and a sun gear meshed with the planetary gears and coupled to the hub by a conventional free-wheel ratchet mechanism. The transmission provides an optimum gear ratio in a compact, chainless, low maintenance assembly.

REFERENCES:
patent: 613601 (1898-11-01), Praul
patent: 619118 (1899-02-01), Barnes
patent: 705106 (1902-07-01), MacDonald
patent: 707359 (1902-08-01), Scharbach
patent: 1184321 (1916-05-01), Chapin
patent: 1506565 (1924-08-01), Clatworthy
patent: 1798384 (1931-03-01), Roberds
patent: 2505464 (1950-04-01), Debuit
patent: 3299745 (1967-01-01), Toplis
patent: 3863503 (1975-02-01), Loeb et al.
patent: 3920263 (1975-11-01), Bundschuh
patent: 3934481 (1976-01-01), Foster
patent: 4447068 (1984-05-01), Brooks

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