Textiles: fluid treating apparatus – Machines – Combined
Patent
1990-05-17
1991-07-09
Coe, Philip R.
Textiles: fluid treating apparatus
Machines
Combined
68 20, 68 231, 68 24, 68207, 68208, D06F 2302, D06F 2500
Patent
active
050294580
ABSTRACT:
A full-automatic washing and drying machine has a drum mounted in an outer tank for rotation about a substantially horizontal axis, a reversible motor operable at a fixed speed for driving the drum, and a power transmission device for transmitting the torque of the motor to the drum axle. The power transmission means include a reduction device. The motor and the reduction device are controlled by a control device such that, during washing and drying operations, the direction of rotation of an output shaft of the motor is switched in short periods while the speed-changing device transmits the rotation of the output shaft of the motor to the drum axle at a reduced speed, whereas, during dehydration operation, the motor operates unidirectionally and the speed-changing device transmits the unidirectional rotation of the motor output shaft to the drum axle with a speed reduction in an initial stage of the dehydration operation and, thereafter, without speed reduction.
REFERENCES:
patent: 2660870 (1953-12-01), Kennedy
patent: 2777313 (1957-01-01), Dodge
patent: 3006176 (1961-10-01), Behrens
patent: 3106832 (1963-10-01), Bochan
patent: 3172277 (1965-03-01), Burkland
patent: 3349579 (1967-10-01), Geschka et al.
patent: 4856301 (1989-08-01), Broadbent
Obata Yukio
Ogasahara Hitoshi
Coe Philip R.
Hitachi , Ltd.
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