Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1988-05-02
1989-08-22
Braun, Leslie A.
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
192 64, 192 81C, F16H 344, F16H 5710, F16D 2300, F16D 1106
Patent
active
048584940
ABSTRACT:
A torque responsive five-stage automatic shifting hub utilizes inner wrapped spring clutches to rotate a plurality of co-axial cylinders except for the cylinder at one end of the axis rotated by a sprocket. Gearing is interposed between the cylinders to rotate them at progressively different rpm. The wheel hub is rotated by outer wrapped springs, one over each cylinder, having one end secured to the hub and the other end floating. The outer wrapped springs automatically wrap on a cylinder rotating faster than the hub and automatically release a cylinder rotating slower than the hub. The inner wrapped spring clutches are actuated by compression springs between the cylinders which expand to actuate the associated clutch and compress to deactivate the clutch. The compression springs are of progressively different strengths along the axis of the cylinders. When the applied torque equals the strength of a particular compression springs between two cylinders, the compression springs expand to activate the associated clutch and rotate the associated cylinder.
REFERENCES:
patent: 2229654 (1941-01-01), Hubbel
patent: 3008558 (1961-11-01), Bennet et al.
patent: 3180181 (1965-04-01), Schwerdhofer
patent: 3351165 (1967-11-01), Shimano
patent: 3372608 (1968-03-01), Gleasman
patent: 3388617 (1968-06-01), Nelson
patent: 3608398 (1971-09-01), Segawa et al.
patent: 3874253 (1975-04-01), Waddington
patent: 3934493 (1976-01-01), Hillyer
patent: 3937309 (1976-02-01), Schulz et al.
patent: 3995503 (1976-12-01), Schulz
patent: 4240533 (1980-12-01), Fukui
patent: 4461375 (1984-07-01), Brown
patent: 4644828 (1987-02-01), Kozakae
Braun Leslie A.
Brelsford Harry W.
Macris Harold F.
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