Title:
【発明の名称】全自動洗濯機
Document Type and Number:
Japanese Patent JP3099467
Kind Code:
B2
Abstract:
PURPOSE:To extract water always in a constant condition regardless of the conditions of the laundry and drainage. CONSTITUTION:A water tank including a washing and hydro-extracting tank wherein a pulsator is rotatably disposed at the center of bottom wall is supported by a suspension rod with a vibro-isolating device. In a hydroextracting step, a motor is turned on and after the number of revolution of the motor has reached a number of revolution V1 which is lower than the resonance frequency of the water tank, the motor is turned off for a predetermined time (ti) and then the motor is turned on again. This operation is repeated m-times. Next, the motor is turned on to rotate it at a number of revolution higher than the resonance frequency and after a number of revolution V2 has been established, the motor is turned off for a predetermined time (tj) and then it is turned on again. This operation is repeated n-times and thereafter the motor is turned on to drive it continuously, thereby performing hydro-extraction and when a predetermined time Tx has passed after the start of hydro- extracting step, the motor is turned on continuously to obtain always a constant hydro-extracting condition without performing hydro-extracting operation for an exceedingly long time.
Inventors:
Kenichi Akasaka
Koji Mitsushiro
Koji Mitsushiro
Application Number:
JP28590091A
Publication Date:
October 16, 2000
Filing Date:
October 31, 1991
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
D06F33/02; (IPC1-7): D06F33/02
Domestic Patent References:
| JP1314599A | ||||
| JP62122696A | ||||
| JP5819291A | ||||
| JP62397A | ||||
| JP1284297A | ||||
| JP59155288A | ||||
| JP1314598A | ||||
| JP277297A | ||||
| JP5670797A | ||||
| JP4105698A | ||||
| JP4150894A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)