Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1982-03-08
1984-10-23
Staab, Lawrence J.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
74804, 74211, F16H 1302, F16H 1310, F16H 128
Patent
active
044781008
ABSTRACT:
An infinitely variable speed automatic transmission employs a housing that fixedly supports an annular toothed raceway. A toothed wheel having an inner raceway is disposed within the toothed raceway and has rolling contact and tooth interengagement therewith. The housing supports a rotatable drive shaft that is concentric with the toothed raceway and supports a radially moveable roller bearing. A drive roller engages the roller bearing and the wheel's inner raceway. A stabilizing roller contacts the wheel's inner raceway and is supported by an arm that is secured to an output shaft. The output and input shafts are axially aligned. Rotation of the drive shaft will cause the roller bearing to impart radial driving impulses to the wheel through the drive roller. In turn the wheel transmits planetary rotation to the stabilizing roller, which rotates the output shaft through the connecting arm.
The wheel acts as a circular lever with the fulcrum being on the wheel's contact point with the toothed raceway. The load resistance on the output shaft plus the magnitude of the driving impulses on the wheel determines the length of the wheel's effort arm, which in turn determines the output shaft speed.
REFERENCES:
patent: 3364761 (1968-01-01), Nasvytis
patent: 3530742 (1970-09-01), Sfredda
patent: 3602070 (1971-08-01), Verge
patent: 3945270 (1976-03-01), Nelson et al.
patent: 4112788 (1978-09-01), Sfredda
patent: 4184388 (1980-01-01), Sfredda
patent: 4237751 (1980-12-01), Davis
patent: 4302988 (1981-12-01), Takahashi et al.
Bednarek Michael D.
Staab Lawrence J.
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