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US 4,232,536 AGranted
Agitator-type washing machine
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsWasuke Koseki, Kunihito Mori, Hideo Obata, Yoshikazu Shinchi
Life of this patent
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Abstract
An agitator-type washing machine comprising an axial-airgap motor and a planetary reduction gear means, wherein a reciprocating motion of the axial-airgap motor is transmitted to an agitator via the reduction gear means in a washing action thereby making use of a high rotational speed, hence large torque and high efficiency of the axial-airgap motor.
Claims7
An agitator-type washing machine comprising a washing tub,
- a spin basket rotatably disposed in said washing tub,
- a reciprocal agitator rotatably disposed in said spin basket,
- a spin basket shaft rotatably journalled to said washing tub and on which said spin basket is mounted,
- an agitator shaft rotatably journalled in and held coaxially to said spin basket shaft,
- an axial-airgap motor having a motor shaft,
- a reduction gear having an input shaft and an output shaft, said input shaft being connected to said motor shaft and said output shaft being connected to said agitator shaft,
- a clutch having an input shaft and an output shaft, said input shaft being connected to said motor shaft and said output shaft connected to said spin basket shaft,
- motor control circuit means for changing motor operation between a washing mode, to drive said axial-airgap motor reciprocatingly, and a spinning mode to drive said axial-airgap motor continuously in one direction, and
- interlocking means for interlocking said motor control circuit means with said clutch in a manner that, when said clutch is disconnected, said motor control circuit means is changed to said washing mode.
6 more elements
Dependencies are inferred from the claim text.