Low torque washing machine transmission

Details Low torque washing machine transmission Low torque washing machine transmission

1996-12-17

1998-02-24

Coe, Philip R.

Textiles: fluid treating apparatus

Machines

Impulsing

68 237, 74 78, D06F 1708, D06F 3740

Patent

active

057201900

ABSTRACT:
A transmission for driving an agitator in a washing machine includes a housing, an input shaft for being driven by a motor, and an output shaft for driving the agitator. The input shaft includes a crank disposed in the housing, and the output shaft includes a pinion disposed in the housing adjacent to the crank. A yoke is slidably mounted in the housing between the crank and pinion, and includes a rack operatively engaging the pinion along a pitchline, and a slot having a slot axis disposed perpendicularly to the pitchline which receives therein a slider rotatably joined to the crank. Rotation of the crank sinusoidally reciprocates the rack as the slider reciprocates in the slot, and reciprocation of the rack sinusoidally oscillates the pinion for driving the output shaft with minimum peak torque and drive power.

REFERENCES:
patent: 1787724 (1931-01-01), Fedler
patent: 1890602 (1932-12-01), Dunham
patent: 2720790 (1955-10-01), Sacchini
patent: 3845642 (1974-11-01), Cochran

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