Washing machine

• US 6,058,743 A
• Filed: 03/10/1997
• Issued: 05/09/2000
• Est. Priority Date: 05/23/1994
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Fujii, Hiroyuki, Ota, Fumio, Omura, Yuko
• Primary Examiner(s): Coe, Philip R.
• Application Number:
  US08/813,298
• Time in Patent Office: 1,156 Days
• Field of Search: 68/23.5, 68/58, 68/148, 68/12.18, 68/17 R, 68/207
• US Class Current: 68/12.18
• CPC Class Codes: D06F 39/022 in a liquid state D06F39/024 takes precedence

Abstract

A washing machine includes a wash-and-dewatering sink 4, a motor 6 rotating the wash-and-dewatering sink 4, a detergent fluid supply device 12 supplying detergent fluid to clothes in the wash-and-dewatering sink 4, and control unit controlling both the motor 6 and the detergent fluid supply device 12 in such a manner, when the wash-and-dewatering sink 4 is rotated by the motor 6, detergent fluid is supplied to the clothes in the wash-and-dewatering sink 4 by the detergent fluid supply device 12.

Claims

1. A washing machine comprising:

a water receiver sink for accommodating therewithin a wash-and-dewatering sink;

actuating means for rotating said wash-and-dewatering sink;

detergent fluid supply means for supplying detergent fluid to clothes in said wash-and-dewatering sink, said detergent fluid containing detergent component chemically acting against stains or dirt of the clothes; and

control means for cooperatively controlling said actuating means and said detergent fluid supply means in such a manner that said detergent fluid is supplied to the clothes in said wash-and-dewatering sink from said detergent fluid supply means only when the rotational speed or acceleration of said wash-and-dewatering sink effected by said actuating means is being reduced so that a decreasingly smaller centrifugal force acts on said clothes.

2. The washing machine in accordance with claim 1, wherein said control means effects said detergent fluid supply means to supply said detergent fluid to the clothes only when the rotational speed of said wash-and-dewatering sink is being reduced from a predetermined speed to a predetermined lower speed.

3. The washing machine in accordance with claim 1, wherein said control means effects said detergent fluid supply means to supply said detergent fluid to the clothes only when the rotational speed or acceleration of said wash-and-dewatering sink is continuously being reduced.

4. The washing machine in accordance with claim 1, wherein said control means effects said actuating means to vary the rotational speed or acceleration of said wash-and-dewatering sink cyclically.