EP0247918A1 - Behälter mit einer integrierten Druckkammer - Google Patents

Behälter mit einer integrierten Druckkammer Download PDF

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Publication number
EP0247918A1
EP0247918A1 EP87401009A EP87401009A EP0247918A1 EP 0247918 A1 EP0247918 A1 EP 0247918A1 EP 87401009 A EP87401009 A EP 87401009A EP 87401009 A EP87401009 A EP 87401009A EP 0247918 A1 EP0247918 A1 EP 0247918A1
Authority
EP
European Patent Office
Prior art keywords
tank
compression chamber
opening
chamber
integrated
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.)
Granted
Application number
EP87401009A
Other languages
English (en)
French (fr)
Other versions
EP0247918B1 (de
Inventor
Henri Grabarcsyk
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.)
Compagnie Industrielle dAppareils Menagers SA CIAPEM
Original Assignee
Compagnie Industrielle dAppareils Menagers SA CIAPEM
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 Compagnie Industrielle dAppareils Menagers SA CIAPEM filed Critical Compagnie Industrielle dAppareils Menagers SA CIAPEM
Priority to AT87401009T priority Critical patent/ATE52114T1/de
Publication of EP0247918A1 publication Critical patent/EP0247918A1/de
Application granted granted Critical
Publication of EP0247918B1 publication Critical patent/EP0247918B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/261—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements
    • D06F37/262—Tubs made by a specially selected manufacturing process or characterised by their assembly from elements made of plastic material, e.g. by injection moulding
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/26—Casings; Tubs
    • D06F37/267—Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/087—Water level measuring or regulating devices

Definitions

  • the present invention relates to a tank with integrated compression chamber, and in particular a molded tank made of synthetic material from a washing machine or dishwasher, provided with an integrated compression chamber.
  • a washing machine for example usually comprises a tank, a washing drum, a drum driving device, a water supply system, a device for emptying the tank, etc.
  • Water is often a controlled water level supply system.
  • the system frequently comprises a solenoid valve ensuring a supply of water to the tank of the machine, an air compression chamber converting a variation of the level of water in the tank, into a variation of air pressure, a pressure switch sensitive to the air pressure in the compression chamber, which controls the operation of this solenoid valve in cooperation with a programmer of the machine, to ensure the opening and closing of this solenoid valve, a pipe connecting the lower end of this chamber compression of air, at the lowest part of the tank of the machine, to bring the water level in this tank into contact with the volume of air in this compression chamber, and an air duct transmitting to this pressure switch the variation of air pressure in this compression chamber, and possibly a drip trap constituted by a container which collects water escaping from this compression chamber or produced by condensation and prevents it from reaching this pressure switch,
  • the air compression chamber is a separate part from the tank, and the pipe connecting the air compression chamber and the tank, is often mounted on a tubular outlet formed either in the bottom of the tank, either in the wall of a connection pipe which connects the tank to an inlet of a drain pump.
  • the manufacture and assembly of such an air compression chamber and the formation of a tubular outlet either in the bottom of the tank or in the connection pipe "tank-drain pump" are long and expensive operations which increase the cost price of known washing machines.
  • washing machines have a molded plastic tub, the drain pipe of which is paired with an integrated compression chamber, the end of which protrudes or penetrates inside the tub.
  • an integrated compression chamber one of the ends of which protrudes inside the tank and which may or may not be combined with a tubing for emptying this tank results in a complex demolding operation which results in a loss of time. , a difficulty in the mass production of this tank, and an increase in the cost price of the latter, and therefore that of the washing machine.
  • the aim of the present invention is to avoid these drawbacks and makes it possible to produce, for washing machines or dishwashers, a tank with an integrated chamber of economical compression, made of molded or injected synthetic material, easy to be removed from the mold and produced in large quantities. series.
  • the invention is applicable to both a washing machine and a dishwasher.
  • a washing machine 1 according to an exemplary embodiment of the invention schematically illustrated in Figures 1 to 3 comprises a body 2, a tub of synthetic material or a moldable material 3, a washing drum 4, an electric drive motor 5 of the laundry drum, a drain pump 6, and a water supply system 7 which comprises an air compression chamber 8, a pressure switch 9, a solenoid valve 10, and operates in cooperation with a programmer 11 to supply in water the tank 3 at a predetermined level.
  • the other known members of lavelinge 1 are not described and illustrated, with a view to making clear the description of the invention.
  • the molded or injected plastic tank 3, having a tubular shape defining a substantially cylindrical interior space 12, intended to receive the laundry drum 4, is closed at one of its ends by an integrated wall 13 and covered at its other end by a removable waterproof cover 14, and provided in its upper part, with an access opening 15.
  • the tank 3 comprises outside its internal space 12 and in its lower zone, that is to say in the zone where the bottom 16 of the tank 3 is located, an integrated compression chamber 8 in communication with the bottom 16 by a pressure tapping opening 17, and having on the one hand, an upper part or end 18 extending outside the tank 3, above the level of this bottom 16, and provided with an air intake pipe 19, and on the other hand, a part or lower end 20 open downwards.
  • the compression chamber 8 is formed simultaneously with the plastic tank 3 during the molding of the latter.
  • the arrangement of the compression chamber 8 outside the interior space 12 of the tank 3 and open by its lower end 20, facilitates demolding of the tank 3-integrated compression chamber 8 assembly.
  • the integrated compression chamber 8 is formed near one of the ends 13, 14 of the tank 3.
  • the pressure tapping opening 17 which connects the compression chamber 8 to the bottom or bottom 16 of the tank 3 is then advantageously in a free space delimited by the washing drum 4 and the adjacent end 13 or 14 of the tank 3, where the liquid remaining in the tank 3 is not subjected to a strong disturbance created by a rotation of the laundry drum 4 or accentuated by an alternating rotation of this drum 4 in two opposite directions, and the compression chamber 8 can then translate with greater precision or better regularity, a variation in the level of liquid in the tank 3 and consequently of the liquid level in its lower part, in a variation of pressure of air trapped in its upper part, and transmit this variation of pressure to the pressure switch 9 through the air intake pipe 19.
  • the integrated compression chamber 8 comprises an open lower end 20 accessible from the outside of the tank 3 and connected by a pipe 21, to the inlet of the drain pump 6, and an upper end 18 placed in communication with the pressure switch 9 by a pipe 22 mounted on the air intake pipe 19, of diameter smaller than that of the body of the chamber 8.
  • the open lower part 20 of the compression chamber 8 performs a double function, that of a part of a compression chamber intended for receiving the liquid and that of a drain pipe from the tank 3, and the opening 17 for communication between tank 3 and chamber 8 also fulfills a double function, that of a pressure tapping opening of the compression chamber 8 and that of a liquid outlet opening of the tank 3.
  • the compression chamber 8 which is located near the integrated end wall 13 of the tank 3, has an advantage indicated in a previous paragraph that of being in communication with a space where the liquid remaining in the tank 3 is relatively calm or less disturbed by a rotation of the laundry drum 4.
  • the compression chamber 8 is independent of a drain circuit 24 of the tank 3.
  • the tank 3 in this case comprises drain pipe 25 which communicates with the bottom 16 of the tank 3 by an opening (not shown), distinct from the pressure tap opening 17 which places the bottom 16 of the tank 3 in communication with the compression chamber 8.
  • the lower part 20 of this compression chamber 8 is in this case closed in a sealed manner at its end by a part constituted either by a tight plug or by a thermostat 26 intended to measure the temperature of the liquid remaining in the tank 3, this thermostat being provided with a seal.
  • the tank 3 comprises a first of its ends hermetically closed by an integrated wall 28, and a second end provided in the plane of its rim 29, with a lateral tab 30, and closed in a leaktight manner by means of a seal 31, by a hollow cover 32 which covers the rim 29 and this tongue 30.
  • the tank 3 comprises outside its internal space 12 and in the zone where the bottom 16 of the tank 3 is located, an integrated compression chamber 35.
  • the compression chamber 35 comprises a lower part or end 36 which opens into the rim 29 of the tank 3 and forms in the lateral tab 30, an opening 37 facing the hollow of the end cover 32, and an upper part or end 38 which extends outside the tank 3 above the level of the bottom 16 of the latter and extends e by an air intake pipe 39.
  • the lower end 36 of the compression chamber 35 is in communication with the hollow of this cover 32 and therefore with the interior space 12 of the tank 3, through its opening 37.
  • the opening 37 of the compression chamber 35 then plays the role of a pressure tapping opening.
  • This pressure tap opening 37 is thus located in a zone of the interior space 12 of the tank 3 where the liquid staying in this tank 3 is not subjected to a strong disturbance created by a rotation of the laundry drum 4.
  • the compression chamber 35 can thus translate with good precision, a variation of the liquid level in its lower part 36, that is to say a variation of the liquid level in the tank 3, into a variation of air pressure trapped in its upper part 38 and transmit this variation in pressure to the pressure switch 9 through its air intake pipe 39 and a pipe 40 for connecting "pressure switch 9 - compression chamber 35".
  • the compression chamber 8 or 35 comprises in its upper part an air intake pipe 19 or 39 which is formed laterally on its wall instead of being coaxial with the compression chamber 8 ( Figures 2 to 4) or oriented vertically as shown in Figure 6.
  • the tubing 19 is in one piece with the body of the chamber 8.
  • the chamber 8 has a uniform section and the pressure switch pipe 45 ends in a cap 46 covering the end 18 of chamber 8.

Landscapes

  • Textile Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Processing Of Solid Wastes (AREA)
  • Refuse Collection And Transfer (AREA)
  • Ink Jet (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Debugging And Monitoring (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Braking Systems And Boosters (AREA)
EP87401009A 1986-05-27 1987-04-30 Behälter mit einer integrierten Druckkammer Expired - Lifetime EP0247918B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87401009T ATE52114T1 (de) 1986-05-27 1987-04-30 Behaelter mit einer integrierten druckkammer.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8607580 1986-05-27
FR8607580A FR2599394B1 (fr) 1986-05-27 1986-05-27 Cuve a chambre integree de compression

Publications (2)

Publication Number Publication Date
EP0247918A1 true EP0247918A1 (de) 1987-12-02
EP0247918B1 EP0247918B1 (de) 1990-04-18

Family

ID=9335693

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87401009A Expired - Lifetime EP0247918B1 (de) 1986-05-27 1987-04-30 Behälter mit einer integrierten Druckkammer

Country Status (7)

Country Link
EP (1) EP0247918B1 (de)
AT (1) ATE52114T1 (de)
DE (1) DE3762357D1 (de)
ES (1) ES2015307B3 (de)
FR (1) FR2599394B1 (de)
GR (1) GR3000604T3 (de)
IN (1) IN170943B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2755705A1 (fr) * 1996-11-11 1998-05-15 Bosch Siemens Hausgeraete Cuve a lessive en matiere plastique pour un lave-linge menager
EP1029963A2 (de) * 1999-02-16 2000-08-23 IAR-SILTAL S.p.A. Waschmaschine
FR2828503A1 (fr) * 2001-08-08 2003-02-14 Georges Mathias Martinez Machine a laver et a essorer a concept de cuve recyclant l'eau
EP1662035A1 (de) * 2004-11-30 2006-05-31 Miele & Cie. KG Kunststofflaugenbehälter mit Luftfalle für eine Waschmaschine
WO2008052980A1 (en) * 2006-10-31 2008-05-08 Arcelik Anonim Sirketi A washing machine
WO2008052979A1 (en) * 2006-10-31 2008-05-08 Arcelik Anonim Sirketi A washing machine
WO2008107022A1 (de) * 2007-03-02 2008-09-12 BSH Bosch und Siemens Hausgeräte GmbH Laugenbehälter für eine waschmaschine
EP2679717A1 (de) * 2011-02-23 2014-01-01 Panasonic Corporation Trommelwaschmaschine
EP2746450A1 (de) * 2012-12-21 2014-06-25 Electrolux Home Products Corporation N.V. Waschmaschine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004057942B3 (de) * 2004-11-30 2005-12-08 Miele & Cie. Kg Kunststofflaugenbehälter für eine Waschmaschine mit Luftfalle
DE102004057943B3 (de) * 2004-11-30 2005-12-08 Miele & Cie. Kg Kunststofflaugenbehälter für eine Waschmaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1503759A1 (de) * 1965-10-14 1969-04-17 Constructa Werke Gmbh Geschirrspuelmaschine
US4066094A (en) * 1976-03-17 1978-01-03 General Electric Company Combination drain sump and air pressure chamber for automatic clothes washing machine
EP0110482A1 (de) * 1982-12-06 1984-06-13 Constructions Electro-Mecaniques D'amiens Waschmaschine für Wäsche mit im Behälterunterteil anfangender Ablaufleitung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1503759A1 (de) * 1965-10-14 1969-04-17 Constructa Werke Gmbh Geschirrspuelmaschine
US4066094A (en) * 1976-03-17 1978-01-03 General Electric Company Combination drain sump and air pressure chamber for automatic clothes washing machine
EP0110482A1 (de) * 1982-12-06 1984-06-13 Constructions Electro-Mecaniques D'amiens Waschmaschine für Wäsche mit im Behälterunterteil anfangender Ablaufleitung

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19646440C2 (de) * 1996-11-11 2003-04-10 Bsh Bosch Siemens Hausgeraete Aus Kunststoff gefertigter Laugenbehälter für eine Haushalt-Waschmaschine
ES2154524A1 (es) * 1996-11-11 2001-04-01 Bosch Siemens Hausgeraete Deposito de lejia para lavadora domestica construido de plastico.
FR2755705A1 (fr) * 1996-11-11 1998-05-15 Bosch Siemens Hausgeraete Cuve a lessive en matiere plastique pour un lave-linge menager
EP1029963A2 (de) * 1999-02-16 2000-08-23 IAR-SILTAL S.p.A. Waschmaschine
EP1029963A3 (de) * 1999-02-16 2000-11-08 IAR-SILTAL S.p.A. Waschmaschine
FR2828503A1 (fr) * 2001-08-08 2003-02-14 Georges Mathias Martinez Machine a laver et a essorer a concept de cuve recyclant l'eau
EP1284317A1 (de) * 2001-08-08 2003-02-19 Georges Martinez Wasch-und Schleudermaschine mit einem zum Zurückgewinnen von Wasser ausgerüstetem Laugenbehälter
EP1662035A1 (de) * 2004-11-30 2006-05-31 Miele & Cie. KG Kunststofflaugenbehälter mit Luftfalle für eine Waschmaschine
WO2008052979A1 (en) * 2006-10-31 2008-05-08 Arcelik Anonim Sirketi A washing machine
WO2008052980A1 (en) * 2006-10-31 2008-05-08 Arcelik Anonim Sirketi A washing machine
WO2008107022A1 (de) * 2007-03-02 2008-09-12 BSH Bosch und Siemens Hausgeräte GmbH Laugenbehälter für eine waschmaschine
EP2679717A1 (de) * 2011-02-23 2014-01-01 Panasonic Corporation Trommelwaschmaschine
EP2679717A4 (de) * 2011-02-23 2014-07-09 Panasonic Corp Trommelwaschmaschine
EP2746450A1 (de) * 2012-12-21 2014-06-25 Electrolux Home Products Corporation N.V. Waschmaschine

Also Published As

Publication number Publication date
GR3000604T3 (en) 1991-09-27
EP0247918B1 (de) 1990-04-18
FR2599394A1 (fr) 1987-12-04
ATE52114T1 (de) 1990-05-15
IN170943B (de) 1992-06-20
FR2599394B1 (fr) 1988-07-29
DE3762357D1 (de) 1990-05-23
ES2015307B3 (es) 1990-08-16

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