Windshield wiper transmission

Details Windshield wiper transmission Windshield wiper transmission

1984-01-16

1985-10-01

Yuen, Henry C.

Machine element or mechanism

Mechanical movements

Oscillating to oscillating

74437, F16H 2144, F16H 5517

Patent

active

045438390

ABSTRACT:
A transmission for a windshield wiper includes a non-circular pinion gear having a closed pitch curve with a basic elliptical segment and a circular segment and a non-circular output gear having an open pitch curve with a third order elliptical segment and a circular segment. The pinion and the output gears mesh such that the basic elliptical and third order elliptical pitch curve segments roll against each other and the circular pitch curve segments roll against each other so that the gear ratio of the combination varies sinusoidally through a first included angle of output gear rotation and remains substantially constant through a second included angle of output gear rotation.

REFERENCES:
patent: 1142051 (1915-06-01), O'Connor
patent: 2027818 (1936-01-01), Golber
patent: 2477441 (1949-07-01), Cole
patent: 2957363 (1960-10-01), Ingham et al.
patent: 3098399 (1963-07-01), Berthiaume
patent: 3208299 (1965-09-01), Leonard et al.
patent: 4160389 (1979-07-01), Kubono

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