EP0483909A1 - Vorrichtung zum Anhalten der Trommel einer mantelbeschickbaren Trommelwaschmaschine in der Beschickungsposition - Google Patents

Vorrichtung zum Anhalten der Trommel einer mantelbeschickbaren Trommelwaschmaschine in der Beschickungsposition Download PDF

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Publication number
EP0483909A1
EP0483909A1 EP91202725A EP91202725A EP0483909A1 EP 0483909 A1 EP0483909 A1 EP 0483909A1 EP 91202725 A EP91202725 A EP 91202725A EP 91202725 A EP91202725 A EP 91202725A EP 0483909 A1 EP0483909 A1 EP 0483909A1
Authority
EP
European Patent Office
Prior art keywords
drum
movable member
pulley
recess
loading
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
EP91202725A
Other languages
English (en)
French (fr)
Other versions
EP0483909B1 (de
Inventor
Daniele C/O Internationaal Octrooibureau Turetta
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.)
Whirlpool Europe BV
Original Assignee
Whirlpool Europe BV
Whirlpool International BV
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 Whirlpool Europe BV, Whirlpool International BV filed Critical Whirlpool Europe BV
Publication of EP0483909A1 publication Critical patent/EP0483909A1/de
Application granted granted Critical
Publication of EP0483909B1 publication Critical patent/EP0483909B1/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
    • D06F37/30—Driving arrangements 
    • D06F37/302—Automatic drum positioning

Definitions

  • This invention relates to a device for halting a drum in the loading and unloading position in a top-loading washing machine containing the drum, which is provided with an aperture having its own closure element and is driven by an electric motor via a linkage comprising a belt and pulleys.
  • An object of the present invention is to provide a device of the aforesaid type which is operationally reliable and provides precise halting of the drum in the loading and unloading position.
  • a further object is to provide a device of the aforesaid type which is of low cost, of simple construction and can be fitted to washing machines of known construction with only slight modification to them.
  • a device fitted to a washing machine of the aforesaid type characterised in that the pulley associated with the drum has in its peripheral edge a recess arranged to cooperate with a movable member which can assume at least two working positions, in one of which it is inserted into said recess and in the second of which it is spaced therefrom, said movable member cooperating with sensor means arranged to operate on said motor to halt it on sensing that one of said working positions has been attained by the movable member, said recess being positioned advantageously such that the said halting of the motor and thus of the rotation of the drum takes place when this latter has its aperture in the loading and unloading position.
  • a washing machine comprises a drum 1 provided with a loading-unloading aperture 2 having its own closure door 3 (shown in the open position in Figure 1).
  • a pulley 4 is fixed to the drum in any known manner, and is connected to a second pulley 5 by a belt 6 or similar transmission member.
  • the pulley 5 is connected to the output shaft 7 of a usual electric motor 8 which when operated in known manner by a timer 9 rotates the drum 1 during the various wash stages of the washing machine.
  • a device is associated with said machine to halt its drum in the loading and unloading position each time the machine stops.
  • Said device comprises a pin 15 carrying at one end 16 a roller or wheel 17 to cooperate with the peripheral edge 18 of the pulley 4 associated with the drum 1.
  • This pulley comprises in its edge 18 a recess 19 in a position corresponding with the aperture 2 in said drum.
  • the pin 15 cooperates with a coil 20 within which said pin can slide (arrows F and G of Figure 1), said coil being connected to the timer 9 via an electrical line 9A.
  • the pin 15 At its other end 21, distant from the end 16, the pin 15 is provided with a collar 22 which retains one end 23 of a compression spring 24 mounted about said pin.
  • the other end 25 of the spring 24 cooperates with the coil 20 (or with a support member for it).
  • the end 23 of the pin 15 cooperates with a part 26, urged by a spring 26A, of a switch 27 connected to the power line (not shown) of the motor 8.
  • the timer 9 is also connected to said motor 8 in known manner (for example via an electrical line 30).
  • the device of the invention is fitted in any known manner within the usual cabinet of the washing machine.
  • the timer 9 in known manner causes the motor 8 to rotate the drum at a very low speed (eg. 15 r.p.m.). At the same time the coil is powered with direct current so that the electromagnetic field generated within it draws the pin 15 close to the pulley 4.
  • roller 17 reaches the edge 18 of said pulley and presses against it.
  • the switch interrupts the power feed to the motor 8 in known manner, so that it stops.
  • the drum 1 is retained in the loading and unloading position either by coupling means of known type or by the pin 15.
  • the timer 9 powers the coil 20 until power is totally switched off from the washing machine. This powering of the coil 20 enables the pin 15 to overcome the action of the spring 24 which would otherwise tend to return it to its initial position distanced from the pulley 4.
  • a permanent magnet can be associated with the end 16 of said pin (in proximity to the roller 17) to cooperate with another permanent magnet associated with the pulley 4 at said recess.
  • the coil 20 is powered only for the time required to halt the motor 8. After power is switched off from the coil 20, the pin is retained at the pulley 4 by the cooperation between said permanent magnets.
  • a further embodiment can comprise two superposed coils arranged about the pin, the first coil being powered by the timer 9 to draw the pin to the pulley 4, and the second coil being powered by the timer to withdraw it.
  • the actuator for moving the pin 15 can be of a type other than the described electromagnetic type.
  • the pin 15 is connected to one end 40 of an arm 44 pivoted at 42 to a fixed support element 43.
  • the other end 48 of the spring 46 cooperates with a movable element 49 connected to a thermal actuator 50.
  • This latter can be of the known type containing a PTC (positive temperature coefficient) resistor which, when powered under the control of the timer 9 in any known manner, causes the element 49 to move towards the arm 41.
  • PTC positive temperature coefficient
  • the drum 1 moves at very low speed and at the same time the timer 9 powers the PTC resistor.
  • This generates heat which causes a usual element positioned in proximity to it (or in contact with it) to expand, and act on the element 49 to cause it to move towards the arm 41.
  • This movement firstly only compresses the spring 46, but then causes the end 44 of said arm to lower and the end 40 to rise, consequently moving the roller 17 to the edge 18 of the pulley.
  • the motor 8 stops when the roller penetrates into the recess 19, as already described.
  • the PTC resistor is immersed in a volume of wax which, on expanding under the heat generated by said electrical member, results in said movement of the element 49.
  • the thermal actuator has therefore the same purpose as the "electromagnetic" coil-type actuator of Figures 1 and 2. However, it has a different operating time, even though it is reliable.
  • the case in which the drum is positioned at the end of the washing machine wash cycle has been considered. However the operation of the device is identical when the user stops the machine during washing.
  • the timer 9 is modified such that after stopping the washing machine, it operates the motor 8 in any known manner to rotate the drum at low speed and (in the already described manner) powers the device for halting the drum in the loading and unloading position.
  • the device of the invention is of simple construction, and can also be used on machines of usual production by slightly modifying them (for example in terms of the drum pulley).
  • the device is also reliable and enables the drum to be correctly halted in the loading and unloading position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Centrifugal Separators (AREA)
EP91202725A 1990-10-30 1991-10-22 Vorrichtung zum Anhalten der Trommel einer mantelbeschickbaren Trommelwaschmaschine in der Beschickungsposition Expired - Lifetime EP0483909B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT02191590A IT1246485B (it) 1990-10-30 1990-10-30 Dispositivo per l'arresto di un cestello nella posizione di carico- scarico in una lavabiancheria del tipo a carica dall'alto
IT2191590 1990-10-30

Publications (2)

Publication Number Publication Date
EP0483909A1 true EP0483909A1 (de) 1992-05-06
EP0483909B1 EP0483909B1 (de) 1996-03-20

Family

ID=11188723

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91202725A Expired - Lifetime EP0483909B1 (de) 1990-10-30 1991-10-22 Vorrichtung zum Anhalten der Trommel einer mantelbeschickbaren Trommelwaschmaschine in der Beschickungsposition

Country Status (3)

Country Link
EP (1) EP0483909B1 (de)
DE (1) DE69118102T2 (de)
IT (1) IT1246485B (de)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713675A1 (fr) * 1993-12-07 1995-06-16 Zanussi Elettrodomestici Lave-linge à chargement par le dessus, avec positionnement perfectionné du panier.
EP0823503A2 (de) * 1996-08-08 1998-02-11 Miele & Cie. GmbH & Co. Mantelbeschickbare Trommelwaschmaschine
WO2000028126A1 (en) * 1998-11-09 2000-05-18 Fisher & Paykel Limited Top loading laundry appliance
WO2000028127A1 (en) * 1998-11-09 2000-05-18 Fisher & Paykel Limited Top loading washing machine
FR2788791A1 (fr) * 1999-01-27 2000-07-28 Electrolux Syst Blanchisserie Procede d'indexage en pratique d'un tambour de lave-linge et lave-linge mettant en oeuvre ce procede
US6968632B2 (en) 2002-04-10 2005-11-29 Fisher & Paykel Appliances Limited Laundry appliance
US7065905B2 (en) 2002-04-10 2006-06-27 Fisher & Paykel Appliances Limited Laundry appliance
FR2894601A1 (fr) * 2005-12-13 2007-06-15 Brandt Ind Sas Dispositif et procede de positionnement d'un tambour rotatif d'une machine a laver et/ou secher le linge
US7249742B2 (en) 2002-04-10 2007-07-31 Fisher & Paykel Appliances Limited Self-levelling foot arrangement for an appliance
US8522451B2 (en) 2008-07-02 2013-09-03 Whirlpool Corporation Method for spraying treating chemistry in a dispensing dryer
CN103835093A (zh) * 2014-03-06 2014-06-04 江苏海狮机械集团有限公司 隔离式洗涤装置
CN109518402A (zh) * 2017-09-18 2019-03-26 青岛海尔洗衣机有限公司 衣物处理设备及其定位装置
CN111041782A (zh) * 2018-10-12 2020-04-21 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111041758A (zh) * 2018-10-12 2020-04-21 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111041760A (zh) * 2018-10-12 2020-04-21 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111118806A (zh) * 2018-10-12 2020-05-08 青岛海尔洗衣机有限公司 一种滚筒洗衣机
WO2022233228A1 (zh) * 2021-05-07 2022-11-10 青岛海尔滚筒洗衣机有限公司 一种定位环及洗衣机
WO2022262627A1 (zh) * 2021-06-16 2022-12-22 青岛海尔滚筒洗衣机有限公司 一种衣物处理设备的洗涤筒的定位单元及衣物处理设备

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1303116B1 (it) * 1998-10-09 2000-10-30 Elbi Int Spa Dispositivo sensore di posizione per il cestello di una macchina peril trattamento di biancheria.
CN112430983B (zh) * 2019-08-20 2022-11-18 重庆海尔滚筒洗衣机有限公司 一种定位装置及洗衣机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1526873A (fr) * 1966-08-25 1968-05-31 Sedelem Soc D Etudes Et De Dev Dispositif d'arrêt automatique d'une pièce tournante, en particulier le tambour d'une machine à laver et à essorer le linge
FR2296719A1 (fr) * 1974-12-30 1976-07-30 Chalectro Cie Machines Laver L Machine a laver le linge
EP0347393A2 (de) * 1988-06-17 1989-12-20 SMEG S.p.A. Automatische Verriegelungsvorrichtung zum Anhalten der Waschmaschinentrommel in einer vorgegebenen Position

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1526873A (fr) * 1966-08-25 1968-05-31 Sedelem Soc D Etudes Et De Dev Dispositif d'arrêt automatique d'une pièce tournante, en particulier le tambour d'une machine à laver et à essorer le linge
FR2296719A1 (fr) * 1974-12-30 1976-07-30 Chalectro Cie Machines Laver L Machine a laver le linge
EP0347393A2 (de) * 1988-06-17 1989-12-20 SMEG S.p.A. Automatische Verriegelungsvorrichtung zum Anhalten der Waschmaschinentrommel in einer vorgegebenen Position

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2713675A1 (fr) * 1993-12-07 1995-06-16 Zanussi Elettrodomestici Lave-linge à chargement par le dessus, avec positionnement perfectionné du panier.
EP0823503A2 (de) * 1996-08-08 1998-02-11 Miele & Cie. GmbH & Co. Mantelbeschickbare Trommelwaschmaschine
EP0823503A3 (de) * 1996-08-08 1998-12-09 Miele & Cie. GmbH & Co. Mantelbeschickbare Trommelwaschmaschine
CN1327073C (zh) * 1998-11-09 2007-07-18 菲舍尔和佩克尔有限公司 洗衣机滚筒和采用该滚筒的洗衣机
WO2000028126A1 (en) * 1998-11-09 2000-05-18 Fisher & Paykel Limited Top loading laundry appliance
WO2000028127A1 (en) * 1998-11-09 2000-05-18 Fisher & Paykel Limited Top loading washing machine
US6343492B1 (en) 1998-11-09 2002-02-05 Fisher & Paykel Limited Top loading washing machine
US6481035B2 (en) 1998-11-09 2002-11-19 Fisher & Paykel Limited Top loading washing machine
US6578391B2 (en) 1998-11-09 2003-06-17 Fisher & Paykel Limited Top loading washing machine
AU766902B2 (en) * 1998-11-09 2003-10-23 Fisher & Paykel Appliances Limited Top loading washing machine
FR2788791A1 (fr) * 1999-01-27 2000-07-28 Electrolux Syst Blanchisserie Procede d'indexage en pratique d'un tambour de lave-linge et lave-linge mettant en oeuvre ce procede
DE10003474B4 (de) * 1999-01-27 2011-08-11 Electrolux Systemes De Blanchisserie Verfahren zur rotatorischen Ausrichtung einer Waschmaschinentrommel und Waschmaschine zur Ausführung des Verfahrens
US7257905B2 (en) 2002-04-10 2007-08-21 Fisher & Paykel Appliances Limited Laundry appliance
US7225562B2 (en) 2002-04-10 2007-06-05 Fisher & Paykel Appliances Limited Laundry appliance
US7117613B2 (en) 2002-04-10 2006-10-10 Fisher & Paykel Appliances Limited Laundry appliance
US7249742B2 (en) 2002-04-10 2007-07-31 Fisher & Paykel Appliances Limited Self-levelling foot arrangement for an appliance
US7065905B2 (en) 2002-04-10 2006-06-27 Fisher & Paykel Appliances Limited Laundry appliance
US7412783B2 (en) 2002-04-10 2008-08-19 Fisher & Paykel Appliances Limited Laundry appliance
US7467483B2 (en) 2002-04-10 2008-12-23 Fisher & Paykel Appliances Limited Laundry appliance
US7762007B2 (en) 2002-04-10 2010-07-27 Fisher & Paykel Appliances Limited Laundry appliance
US6968632B2 (en) 2002-04-10 2005-11-29 Fisher & Paykel Appliances Limited Laundry appliance
FR2894601A1 (fr) * 2005-12-13 2007-06-15 Brandt Ind Sas Dispositif et procede de positionnement d'un tambour rotatif d'une machine a laver et/ou secher le linge
EP1798323A1 (de) * 2005-12-13 2007-06-20 Brandt Industries Vorrichtung und Verfahren zum Positionieren einer Trommel einer Waschmaschine und/oder Wäschetrockner
US8522451B2 (en) 2008-07-02 2013-09-03 Whirlpool Corporation Method for spraying treating chemistry in a dispensing dryer
CN103835093B (zh) * 2014-03-06 2016-04-06 江苏海狮机械集团有限公司 隔离式洗涤装置
CN103835093A (zh) * 2014-03-06 2014-06-04 江苏海狮机械集团有限公司 隔离式洗涤装置
CN109518402A (zh) * 2017-09-18 2019-03-26 青岛海尔洗衣机有限公司 衣物处理设备及其定位装置
CN109518402B (zh) * 2017-09-18 2024-03-26 佛山市顺德海尔电器有限公司 衣物处理设备及其定位装置
CN111041782A (zh) * 2018-10-12 2020-04-21 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111041758A (zh) * 2018-10-12 2020-04-21 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111041760A (zh) * 2018-10-12 2020-04-21 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111118806A (zh) * 2018-10-12 2020-05-08 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111041782B (zh) * 2018-10-12 2022-11-18 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111041758B (zh) * 2018-10-12 2023-08-18 青岛海尔洗衣机有限公司 一种滚筒洗衣机
CN111118806B (zh) * 2018-10-12 2023-09-05 青岛海尔洗衣机有限公司 一种滚筒洗衣机
WO2022233228A1 (zh) * 2021-05-07 2022-11-10 青岛海尔滚筒洗衣机有限公司 一种定位环及洗衣机
WO2022262627A1 (zh) * 2021-06-16 2022-12-22 青岛海尔滚筒洗衣机有限公司 一种衣物处理设备的洗涤筒的定位单元及衣物处理设备

Also Published As

Publication number Publication date
IT1246485B (it) 1994-11-19
EP0483909B1 (de) 1996-03-20
DE69118102T2 (de) 1996-10-02
IT9021915A0 (it) 1990-10-30
DE69118102D1 (de) 1996-04-25
IT9021915A1 (it) 1992-04-30

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