Method for washing and washing machine

Patent metadata

Field	Value
Publication number	US-8997290-B2
Application number	US-91777610-A
Country	US
Kind code	B2
Filing date	Nov 2, 2010
Priority date	Nov 2, 2009
Publication date	Apr 7, 2015
Grant date	Apr 7, 2015

Abstract

Provided is a method for washing laundry in a washing machine, wherein the washing machine includes a tub and a drum disposed inside the tub, the method comprising: supplying wash water into the tub; rotating the drum such that the laundry is attached the drum and spraying the wash water changed to whirling water into the drum; and draining the wash water from the tub.

First claim

What is claimed is:

1. A method for washing laundry in a washing machine, wherein the washing machine includes:
a cabinet,
a drum provided in the cabinet for holding laundry,
a tub provided in the cabinet and holding the drum for holding wash water,
a gasket provided between the cabinet and the tub,
a spray nozzle provided at an upper portion of the gasket to spray wash water supplied from an external water source into the drum,
a circulation nozzle provided at the gasket to spray circulating wash water into the drum,
the method comprising:
supplying wash water mixed with detergent into the tub;
spraying wash water without detergent through the spray nozzle into the drum during supplying water mixed with detergent;
rotating the drum, circulating the wash water in the tub and spraying the circulating wash water through the circulation nozzle into the drum for soaking the laundry;
balancing the laundry by repeating acceleration and deceleration of the drum in a state where wash water is filled in the tub;
rotating the drum for moving a laundry against an inner wall of the drum, circulating the wash water in the tub, and spraying the circulating wash water through the circulation nozzle into the drum; and
draining the wash water from the tub;
wherein the wash water is sprayed on an inner side surface and an inner rear surface of the drum.

2. The method for washing laundry according to claim 1 , wherein supplying wash water into the tub further comprises:
sensing the laundry load by measuring a deceleration time of the drum.

3. The method for washing laundry according to claim 1 , wherein the drum rotates at a rate of about 150 rpm.

4. The method for washing laundry according to claim 1 , wherein rotating the drum and spraying the wash water is accomplished when a laundry damage prevention key or a laundry damage prevention course is selected.

5. The method for washing laundry according to claim 1 , wherein the spray nozzle comprises:
a dome having a receiving space therein; and
a core provided in the receiving space and formed of a twisted plate to form a plurality of twisted flow paths together with the receiving space,
wherein the wash water passing through the plurality of twisted flow paths is changed to whirling water,

wherein the circulation nozzle comprises:
a main body having a flow path through which the circulating wash water passes, and
a bent surface, wherein the circulating wash water having passed through a flow path of the main body runs against the bent surface and is sprayed therefrom.

Assignees

• Kim Wooyoung
• Kim Youngho
• Kim Jaehyun
• Hong Moonhee
• Kim Changoh
• Woo Kyungchul
• Im Myonghun
• Lee Sangheon
• Chang Jaewon
• Oh Sooyoung
• Lee Jongmin
• Lg Electronics Inc

Inventors

• Kim Wooyoung
• Kim Youngho
• Kim Jaehyun
• Hong Moonhee
• Kim Changoh
• Woo Kyungchul
• Im Myonghun
• Lee Sangheon
• Chang Jaewon
• Oh Sooyoung
• Lee Jongmin

Classifications

• D06F35/006 Primary

  for washing or rinsing only · CPC title

• D06F39/005

  Textiles & Paper · mapped topic

• D06F39/003

  Textiles & Paper · mapped topic

• D06F39/083

  Liquid discharge or recirculation arrangements · CPC title

• D06F39/088 Primary

  Liquid supply arrangements · CPC title