JPS5484766A - Water level controller of washing machine - Google Patents

Water level controller of washing machine

Info

Publication number
JPS5484766A
JPS5484766A JP15180477A JP15180477A JPS5484766A JP S5484766 A JPS5484766 A JP S5484766A JP 15180477 A JP15180477 A JP 15180477A JP 15180477 A JP15180477 A JP 15180477A JP S5484766 A JPS5484766 A JP S5484766A
Authority
JP
Japan
Prior art keywords
washing
tank
water
objects
weights
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP15180477A
Other languages
Japanese (ja)
Inventor
Takashi Tazawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP15180477A priority Critical patent/JPS5484766A/en
Publication of JPS5484766A publication Critical patent/JPS5484766A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

PURPOSE: To perform automatic water supply of optimum volume to the washing machine according to the weights of washing objects by detecting the elastic deformations of the bottom and side wall of the washing tank with two sets of strain gauges and controlling water feeding.
CONSTITUTION: Voltages V1, V2 corresponding to the bottom distortion of a tank 1 owing to the weight of washing objects 25 and water feed rate and the elastic distortion of the side wall of a tank 1 according to the water feed rate are detected by the strain gauges 6, 8 provided to the bottom and side parts of the washing tank 1. When the washing objects 25 are light in weight, the time until the voltage difference V2 - V1 becomes threshold voltage is shorter as compared to the case when they are heavy. Hence, if the required threshold value is selected and a thyristor 20 is conducted to de-energize a solenoid 12 and close a valve 11 when the differential voltage V2 - V1 becomes above the threshold value, then water supply stops and at the same time power is supplied to a motor 19 for turning a pulsator 2 and washing is started after the optimum volume of water has been automatically supplied into the washing tank according to the weights of the washing objects.
COPYRIGHT: (C)1979,JPO&Japio
JP15180477A 1977-12-19 1977-12-19 Water level controller of washing machine Pending JPS5484766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15180477A JPS5484766A (en) 1977-12-19 1977-12-19 Water level controller of washing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15180477A JPS5484766A (en) 1977-12-19 1977-12-19 Water level controller of washing machine

Publications (1)

Publication Number Publication Date
JPS5484766A true JPS5484766A (en) 1979-07-05

Family

ID=15526657

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15180477A Pending JPS5484766A (en) 1977-12-19 1977-12-19 Water level controller of washing machine

Country Status (1)

Country Link
JP (1) JPS5484766A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56161531U (en) * 1980-04-30 1981-12-01
JPS58189522A (en) * 1982-04-30 1983-11-05 Nippon Soken Inc Detecting device of liquid quantity in container

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56161531U (en) * 1980-04-30 1981-12-01
JPS58189522A (en) * 1982-04-30 1983-11-05 Nippon Soken Inc Detecting device of liquid quantity in container

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