Assembly for constituting a stepless speed change gear of fricti

Details Assembly for constituting a stepless speed change gear of fricti Assembly for constituting a stepless speed change gear of fricti

1986-07-18

1988-06-21

Herrmann, Allan D.

Machine element or mechanism

Gearing

Plural power paths to and/or from gearing

74191, F16H 1516, F16H 1552

Patent

active

047518545

ABSTRACT:
A type of a stepless speed change gear has a plurality of conical rollers each of which has a conical surface frictionally and internally engaging a ring-member moved axially by a speed changing device, a first annular surface frictionally engaging a disc of small diameter on an input shaft and a second annular surface frictionally engaging with a disc or large diameter arranged coaxially with the input shaft, and a contact pressure generating device of cam-type for generating contact pressures at three frictionally engaging points on each of the conical rollers. An assembly in which thrusting due to the friction-drive does not act onto the casing is provided. In the assembly, the disc of small diameter, the disc of large diameter and the contact pressure generating device are supported by a single shaft prohibiting running-out of them in axial direction. In addition, the conical rollers are bundled by the ring-member so that they will not drop out of the assembly.

REFERENCES:
patent: 2886986 (1959-05-01), Kopp
patent: 3108496 (1963-10-01), Kashihara
patent: 3108497 (1963-10-01), Kashihara
patent: 3127793 (1964-04-01), Kashihara
patent: 3525274 (1970-08-01), Kubota
patent: 3822610 (1974-07-01), Erban
patent: 4232561 (1980-11-01), Kashihara et al.
patent: 4653349 (1987-03-01), Kaneyuki

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