Machine element or mechanism – Gearing – Plural power paths to and/or from gearing
Patent
1978-05-04
1980-09-30
Braun, Leslie
Machine element or mechanism
Gearing
Plural power paths to and/or from gearing
74204, 74206, 74208, 74209, F16H 1306, F16H 1500, F16H 1302
Patent
active
042248400
ABSTRACT:
A traction roller transmission comprising coaxial input and output shafts with a sun roller associated with one and a traction ring surrounding the sun roller associated with the other shaft and traction transmitting roller casters disposed in the annular space between, and in engagement with, the sun roller and the traction ring for the transmission of motion therebetween. Each roller caster includes two transmission rollers whose combined diameters are slightly larger than the gap between the sun roller and the traction ring, one of the transmission rollers being in engagement with the sun roller and the other with the traction ring such that a torque transmitted through the transmission tends to pivot the casters, which are slightly tilted, into a more upright position with respect to the sun roller and traction ring surfaces thereby forcing the transmission rollers into firm engagement with each other and with the traction ring and the sun roller. The casters have a pivotal support disposed in front of them, with respect to their direction of movement relative to the traction ring and sun roller, which both rotate in the same direction, so that the casters swing into perfect parallel alignment with the axis of the sun roller and the traction ring.
REFERENCES:
patent: 661909 (1900-11-01), Foster
patent: 1093922 (1914-04-01), Dieterich
patent: 1291654 (1919-01-01), Morison
patent: 1737695 (1929-12-01), Zadow
patent: 2704459 (1955-03-01), Nanni
patent: 3160031 (1964-12-01), Bugg
patent: 3364761 (1968-01-01), Nasvytis
patent: 3433099 (1969-03-01), Nasvytis
patent: 3889554 (1975-06-01), Sinclair
patent: 4052915 (1977-10-01), Kraus
patent: 4121331 (1978-10-01), Fukuma et al.
patent: 4128016 (1978-12-01), Nasvytis
"Mechanical Design and Systems" pp. 14-8 and 14-9, McGraw Hill, New York, 1964.
Bach Klaus J.
Braun Leslie
Excelermatic Inc.
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