Machine element or mechanism – Gearing – Toothed gear and recirculated unconnected elements
Patent
1985-09-19
1986-09-30
Dorner, Kenneth J.
Machine element or mechanism
Gearing
Toothed gear and recirculated unconnected elements
74190, 741905, F16H 1508, F16H 1500
Patent
active
046141251
ABSTRACT:
An infinitely variable traction roller transmission having a housing, an input shaft and an output shaft rotatably and coaxially supported on the housing, an input toric disc and an output toric disc fitted on the input and output shafts, respectively, and engaged with the shafts for rotation therewith, the opposed surfaces of the toric discs cooperating with each other to form a toroidal cavity, a plurality of traction rollers disposed in the toroidal cavity symmetrically with the axes of the input and output shafts, trunnion devices rotatably supporting the traction rollers and supported by the housing for pivotal movement about a pivot axis perpendicular to the axis of rotation of the traction rollers, and pressing means for urging the input and output toric discs and the traction rollers against each other to bring them into engagement with each other and cause a traction force to be produced, is provided with a supporting device for mounting the trunnion devices on the housing for slight movement in the direction of the pivot axis, a screw device provided at the end of the pivot axis of the trunnion devices, and a speed change link mechanism provided on the screw device to rectilinearly move the trunnion devices in the direction of the pivot axis through the screw device.
REFERENCES:
patent: 1698229 (1929-01-01), Hayes
patent: 2086491 (1937-07-01), Dodge
patent: 2907220 (1959-10-01), Weisel
patent: 3142189 (1964-07-01), Davis et al.
patent: 3810398 (1974-05-01), Kraus
patent: 4434676 (1984-03-01), Horton
patent: 4444068 (1984-04-01), Kraus
patent: 4453427 (1984-06-01), Kraus et al.
Bednarek Michael D.
Dorner Kenneth J.
Nippon Seiko Kabushiki Kaisha
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