Friction gear transmission systems or components – Condition responsive ratio change – Centrifugal actuator
Patent
1998-04-01
1999-11-23
Herrmann, Allan D.
Friction gear transmission systems or components
Condition responsive ratio change
Centrifugal actuator
74336R, 74344, 74606R, 476 11, 476 59, F16H 1546, F16H 5942
Patent
active
059891491
ABSTRACT:
An automatic friction wheel transmission that includes an enclosed case, an input shaft assembly rotatively mounted through the enclosed case, and an output shaft assembly rotatively mounted through the enclosed case and operatively connected to the input shaft assembly for selective rotation therewith. An input low speed friction wheel engages an output low speed friction wheel and an input high speed friction wheel is disengaged from an output high speed friction wheel when a speed sensor initially senses a low speed of an input shaft. The input low speed friction wheel is disengaged from the output low speed friction wheel and the input high speed friction wheel engages the output high speed friction wheel when the speed sensor senses a high speed of the input shaft, by virtue of the speed sensor activating a solenoid, which causes a fork to pivot, which causes the sleeve to slide axially along the input shaft, with the input low speed friction wheel and the input high speed friction wheel moving therewith.
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patent: 5328419 (1994-07-01), Motl et al.
patent: 5445567 (1995-08-01), Chattin
Herrmann Allan D.
Miller, P.E Richard L.
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