Machine element or mechanism – Gearing – Rotary bodies
Patent
1991-03-28
1992-09-15
Herrmann, Allan D.
Machine element or mechanism
Gearing
Rotary bodies
74 25, F16H 4900, F16H 2116
Patent
active
051468034
ABSTRACT:
A rolling joint is provided for obtaining slewing maneuvers for various apparatuses including space structures, space vehicles, robotic manipulators and simulators. Two noncircular cylinders, namely a drive and a driven cylinder, are provided in driving contact with one another. This contact is maintained by two pairs of generally S-shaped bands, each pair forming a generally 8-shaped coupling tightly about the circumferential periphery of the noncircular drive and driven cylinders. A stationarily fixed arm extends between and is rotatably journalled with a drive axle and a spindle axle respectively extending through selected rotational points of the drive cylinder and of the driven cylinder. The noncircular cylinders are profiled to obtain the desired varying gear ratio.
REFERENCES:
patent: 2552572 (1951-05-01), Mikina
patent: 2700285 (1955-01-01), Bellini
patent: 2861635 (1958-11-01), Orr
patent: 2957363 (1960-10-01), Ingham et al.
patent: 3178959 (1965-04-01), Schwesinger
patent: 3301244 (1967-01-01), Renshaw
patent: 3606795 (1971-09-01), Simons
patent: 4077267 (1978-03-01), Schottler
Chew Meng-Sang
Juang Jer-Nan
Yang Li-Farn
Administrator of the National Aeronautics and Space Administrati
Herrmann Allan D.
Osborne Kevin B.
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