Washing machine

Abstract

The invention provided a washing machine that effectively removes a foreign matter such as a detergent residue or mold sticking to the interior and exterior surface of a rotary drum having the center shaft of rotation nearly in the horizontal direction or nearly in the inclining direction and the inwall surface of a water receiving tank. The washing machine performs the combination of a first washing process in which a control means 20 rotates the rotary drum 1 at a first revolution by controlling a motor 5 after supplying water to a set water level by controlling a water supply valve 14 at a first set revolution, a second washing process in which the control means rotates the rotary drum at a second set revolution as a revolution causing a circulating stream between the outer surface of the rotary drum and an inner wall surface of the water receiving tank 3, higher than the first set revolution, and a rotation stopping process in which the control means stops the rotary drum, more than one time for a set time.

Description

technical field [0001] The invention relates to a washing machine, which performs washing, rinsing and dehydration of laundry in a rotating drum whose central axis of rotation is in a horizontal direction or an inclined direction, and at the same time hardens the laundry on the inner and outer wall surfaces of the rotating drum and Foreign matters such as washing powder and mildew stains on the inner barrel wall surface of the inner bucket of the rotary drum installed in it are also cleaned. Background technique [0002] Japanese Patent Publication No. 2002-248295 has disclosed a method for cleaning foreign objects. In a washing machine provided with a washing tub whose central axis of rotation is in the vertical direction, and an outer tub inside which the washing tub is located, the above-mentioned foreign matter cleaning method aims to remove foreign matter attached to the outer tub wall of the washing tub and the inner wall of the outer tub. The metal alkali (the produc...

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned second prior art (i.e. Japanese Patent Laid-Open No. Hei 10-201991), the central axis of rotation shown in the drum type washing machine is in the horizontal direction or in an inclined direction, and the water can only reach the bottom of the rotating drum. Part of the inner and outer walls and part of the inner wall of the bucket with a rotating drum inside, and this prior art does not propose a cleaning method for foreign matter attached to the wall.

In addition, even if the cleaning method in prior art 1 is used, it is not expected that a sufficient cleaning effect will be achieved.

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