EP0347393A2 - Automatische Verriegelungsvorrichtung zum Anhalten der Waschmaschinentrommel in einer vorgegebenen Position - Google Patents

Automatische Verriegelungsvorrichtung zum Anhalten der Waschmaschinentrommel in einer vorgegebenen Position Download PDF

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Publication number
EP0347393A2
EP0347393A2 EP89830268A EP89830268A EP0347393A2 EP 0347393 A2 EP0347393 A2 EP 0347393A2 EP 89830268 A EP89830268 A EP 89830268A EP 89830268 A EP89830268 A EP 89830268A EP 0347393 A2 EP0347393 A2 EP 0347393A2
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EP
European Patent Office
Prior art keywords
lever
cam
drum
motor
wheel
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.)
Withdrawn
Application number
EP89830268A
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English (en)
French (fr)
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EP0347393A3 (de
Inventor
Roberto Bertazzoni
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.)
Smeg SpA
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Smeg SpA
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Filing date
Publication date
Application filed by Smeg SpA filed Critical Smeg SpA
Publication of EP0347393A2 publication Critical patent/EP0347393A2/de
Publication of EP0347393A3 publication Critical patent/EP0347393A3/de
Withdrawn legal-status Critical Current

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    • 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

  • the present invention deals with an automatic locking device to stop at a given position a drum of washing machines or the like, in particular in order that its shutter stops in front of the loading and unloading door.
  • DE-A-34 31 807 discloses a device for determining the desired positioning of the drum, being controlled by lifting of the cover or outer door of the machine.
  • a solution shows further draw­backs due to the fact that the positioning does not occur immediately upon opening of the door and it is necessary to provide between the latter and the inner shutter of the drum an additional intermediate safety door to avoid that the hands of the user may come into contact with the rotating drum before reaching the final position.
  • a device comprising an electric motor with reduc­tion gear, the axis of which is capable of driving through rotation a wheel or disc with a shaped profile and provided with a projecting cam for actuating one end of a three-arms lever which is pivotedly mounted on the support of said geared motor and bears at another end means for radially fitting into a recess formed at the peripheral circumference of the fully driving the drum, there being provided means responsive to the posi­tion of said lever and said wheel with cam to control, alternately in turn and according to machine programmer, the switching on of said geared motor, of the main motor for rotating drum and of the controls of an electric lock.
  • microswitches are provided which are mounted so that, in connection with said lever being lifted under action of the cam to allow the free rotation of the drum, one of the microswitches is actuated by said lever, whereby the geared motor is switched off and keeps cam and thus lever at said posi­tion of drum being unlocked, while another microswitch operating with the control of said shaped wheel ensures that another operation of the geared motor is enabled upon control of the programmer device.
  • resilient means biasing to keep said lever end within said recess of the pulley for locking the drum, said cam operating with the opposite end against the action of said resilient means, such as formed of a spring working under a tensile stress bet­ween this end and the stationally point of the geared motor support, while a third arm of said lever coope­rates with a third microswitch for enabling, in turn, the operation of the main motor or of the electric lock.
  • a washing machine being loaded from the top has a cover or loading and unloading outer door 14, 14′ and relevant electric lock 12, 12′ as well as a drum (not shown) rotatably mounted within a washing tank 11, a­round its axis X as it is journaled on a pulley 1 driven by a main drum motor 13 by means of a belt 16.
  • an automa­tic locking device to stop the drum at a given position, namely such as its access door (not shown) is directly facing in front of the loading and unloading outer door 14 or 14′.
  • This device comprises an electric motor with reduction gear 2, which is mounted on a support plate 20 being in turn resiliently connected to the washing tank 11, said geared motor 2 driving a wheel or disc 3 with a shaped contour and eccentrically provided with a projection or cam 3a.
  • lever 4 On the same support 20 there is pivotally mounted in 4a a lever 4, which is substantial­ly L-shaped or, better, has three arms two of which are aligned each other and show respectively, at opposite ends, means 5 of engagement with a recess 15 radially formed on the periphery of the pulley 1, and the other anchoring means to an end of a spring 10 being fixed at the other end to said support 20. Between said two ends, lever 4 has a third arm, which on one side shows a re­cess 17 ending with a cam-shaped zone 9.
  • two microswitches 6, 7 are respectively provided, and a third microswitch is moun­ted, still on the support plate 20, in order to follow the shaped contour of the wheel 3 having in particular a recessed portion 18 which has been shown radiused with continuity from one side to the remaining portion of the wheel periphery and from the other side showing, with respect thereto, a tooth-shaped discontinuity.
  • FIGS 2a, 2b 2c schematically show also the electrical connections relating to said microswitches for controll­ing the geared motor 2, the motor for rotating the drum, or washing motor 13 and the electric lock 12.
  • said automatisms are illustrated and de­scribed only as an example, since equivalent solutions of the same technical problem can be suitably provided, as long as are based on the use of a geared motor, which is independent from the main washing motor and directly controlled by the machine programmer, provided that it is able to operate locking means to engage a peripheral groove on the drum pulley as the last step of the wa­shing cycle, being also able to carry out automatically the disengagement of such a means as the first step of a new washing cycle.
  • the microswitches 6, 7 in commutation, relating to the two arms of lever 4 defining the recess 17, are changed-over respectively to such positions to enable feeding power to motor 13, while switching off the geared motor 2 and the electric lock 12.
  • the third microswitch 8 with its detecting element being actuated by the contact with the periphery of cam wheel 3, ensures that the geared motor 2 is preset to be switched on.
  • the programmer controls, as a last step before the machine is off, that the geared motor 2 is fed through microswitch 8, whereby the disc 3 rotates in the direc­tion of arrow F until cam 3a disengages lever 4.
  • the programme in any case gives as a first step that device 2 is fed through the microswitch 7. Then the cam 3a reaches again the posi­tion of Fig. 2a causing lever 4 to rotate against the bias of spring 10 so as to release the pulley 1 thus unlocking the drum.
  • the micro­switch 6 Upon rotation of lever 4, the micro­switch 6, being no longer in contact with the cam 9 of said lever, takes out the electric feed from the elec­trical lock 12 and switches on the motor 13 which is caused to rotate under the exclusive control, in this step, of the programmer also through the enabling con­sent of the other microswitch 7, which at this stage, being pressed by lever 4, switches off the geared motor 2.
  • the microswitch 8 has brought its con­tact with the wheel 3 outside the recess 18, since the latter is suitably provided on the contour of wheel 3 in an area placed at the same side of cam 3a, with re­spect to the rotation axis, thus commutating its own controls to reset a subsequent operation of the geared motor 2 as soon as required, under control of the pro­grammer, at the end of the operation cycle, that has just started.
  • the usual consents to the various operations will be of course envisaged, in particular for actuation of the washing motor 13, e.g. depending on the door 14 being closed, as well as any timing with various delays which are usually predetermined for safety's reasons.
  • the device according to the invention can be used also in machines which are different from the washing machines and generally could be applied onto whichever apparatus wherein a rotating member like a drum, being controlled by a programme, must be stopped at the end of each ope­rating cycle, in front of a door for the access from outside. Examples thereof could be dry cleaning machines, dyeing machines, or also for tumbling of metallic parts, mixing machines, kneading machines or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
EP19890830268 1988-06-17 1989-06-16 Automatische Verriegelungsvorrichtung zum Anhalten der Waschmaschinentrommel in einer vorgegebenen Position Withdrawn EP0347393A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT21023/88A IT1218255B (it) 1988-06-17 1988-06-17 Dispositivo di bloccaggio automatico in una posizione prefissata del cestello di lavaggio di macchine lavabiancheria
IT2102388 1988-06-17

Publications (2)

Publication Number Publication Date
EP0347393A2 true EP0347393A2 (de) 1989-12-20
EP0347393A3 EP0347393A3 (de) 1991-08-14

Family

ID=11175537

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890830268 Withdrawn EP0347393A3 (de) 1988-06-17 1989-06-16 Automatische Verriegelungsvorrichtung zum Anhalten der Waschmaschinentrommel in einer vorgegebenen Position

Country Status (2)

Country Link
EP (1) EP0347393A3 (de)
IT (1) IT1218255B (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0483909A1 (de) * 1990-10-30 1992-05-06 Whirlpool Europe B.V. Vorrichtung zum Anhalten der Trommel einer mantelbeschickbaren Trommelwaschmaschine in der Beschickungsposition
FR2679269A1 (fr) * 1991-07-17 1993-01-22 Ardam Procede et dispositif d'arret du tambour d'une machine a laver le linge en position de dechargement.
EP0551238A1 (de) * 1992-01-07 1993-07-14 CROUZET Electrom˩nager Vorrichtung zum Anhalten der Trommel
EP0554194A1 (de) * 1992-01-31 1993-08-04 CROUZET Electrom˩nager Vorrichtung zum Anhalten der Trommel
EP0575266A1 (de) * 1992-06-18 1993-12-22 CROUZET Electrom˩nager Vorrichtung zum Anhalten einer Wachmaschinentrommel
US5398528A (en) * 1994-05-02 1995-03-21 Whirlpool Corporation Pulley system for automatic washer
FR2713675A1 (fr) * 1993-12-07 1995-06-16 Zanussi Elettrodomestici Lave-linge à chargement par le dessus, avec positionnement perfectionné du panier.
US5437168A (en) * 1994-05-02 1995-08-01 Whirlpool Corporation Top loading horizontal axis automatic washer
US5448900A (en) * 1994-05-02 1995-09-12 Whirlpool Corporation System for automatically opening basket doors of a top loading horizontal axis automatic washer
EP0681050A2 (de) * 1994-05-02 1995-11-08 Whirlpool Corporation Vorrichtung zum Anhalten der Trommel für eine horizontalachsige Waschmaschine in Topladerbauweise
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
US7111478B2 (en) * 2002-03-06 2006-09-26 Sanyo Electric Co., Ltd. Drum washing machine
WO2013117244A1 (en) 2012-02-09 2013-08-15 Electrolux Laundry Systems France Snc A locking device for a moving element, particularly of a washing machine, and associated method
US8522451B2 (en) 2008-07-02 2013-09-03 Whirlpool Corporation Method for spraying treating chemistry in a dispensing dryer
WO2018215004A1 (en) * 2017-05-26 2018-11-29 Alliance Laundry Ce S.R.O.. Two-positioning blocking device of a washing drums
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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110042623B (zh) * 2018-01-15 2021-06-15 无锡小天鹅电器有限公司 滚筒洗衣机

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6603508U (de) * 1965-08-19 1969-10-09 Siemens-Electrogeraete Gmbh Vorrichtung zur erzielung des trommelstillestandeseiner mantelbeschickten waeschebehandlungemaschinein der bedienungslage.
DE1585953A1 (de) * 1963-05-16 1970-07-16 Siemens Elektrogeraete Gmbh Vorrichtung zur Erzielung des Trommelstillstandes einer mantelbeschickten Waeschebehandlungsmaschine in der Bedienungslage
FR2296719A1 (fr) * 1974-12-30 1976-07-30 Chalectro Cie Machines Laver L Machine a laver le linge
CH624722A5 (en) * 1978-01-27 1981-08-14 Zug Verzinkerei Ag Laundry-treatment machine.
DE3431807A1 (de) * 1984-08-30 1986-03-13 Miele & Cie GmbH & Co, 4830 Gütersloh Positioniereinrichtung fuer die trommel einer mantelbeschickbaren trommelwaschmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1585953A1 (de) * 1963-05-16 1970-07-16 Siemens Elektrogeraete Gmbh Vorrichtung zur Erzielung des Trommelstillstandes einer mantelbeschickten Waeschebehandlungsmaschine in der Bedienungslage
DE6603508U (de) * 1965-08-19 1969-10-09 Siemens-Electrogeraete Gmbh Vorrichtung zur erzielung des trommelstillestandeseiner mantelbeschickten waeschebehandlungemaschinein der bedienungslage.
FR2296719A1 (fr) * 1974-12-30 1976-07-30 Chalectro Cie Machines Laver L Machine a laver le linge
CH624722A5 (en) * 1978-01-27 1981-08-14 Zug Verzinkerei Ag Laundry-treatment machine.
DE3431807A1 (de) * 1984-08-30 1986-03-13 Miele & Cie GmbH & Co, 4830 Gütersloh Positioniereinrichtung fuer die trommel einer mantelbeschickbaren trommelwaschmaschine

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0483909A1 (de) * 1990-10-30 1992-05-06 Whirlpool Europe B.V. Vorrichtung zum Anhalten der Trommel einer mantelbeschickbaren Trommelwaschmaschine in der Beschickungsposition
FR2679269A1 (fr) * 1991-07-17 1993-01-22 Ardam Procede et dispositif d'arret du tambour d'une machine a laver le linge en position de dechargement.
EP0551238A1 (de) * 1992-01-07 1993-07-14 CROUZET Electrom˩nager Vorrichtung zum Anhalten der Trommel
EP0554194A1 (de) * 1992-01-31 1993-08-04 CROUZET Electrom˩nager Vorrichtung zum Anhalten der Trommel
FR2686911A1 (fr) * 1992-01-31 1993-08-06 Sextant Avionique Dispositif d'arret d'un tambour de machine a laver.
EP0575266A1 (de) * 1992-06-18 1993-12-22 CROUZET Electrom˩nager Vorrichtung zum Anhalten einer Wachmaschinentrommel
FR2692604A1 (fr) * 1992-06-18 1993-12-24 Sextant Avionique Dispositif d'arrêt de tambour de machine à laver.
FR2713675A1 (fr) * 1993-12-07 1995-06-16 Zanussi Elettrodomestici Lave-linge à chargement par le dessus, avec positionnement perfectionné du panier.
EP0681049A2 (de) * 1994-05-02 1995-11-08 Whirlpool Corporation Riemenscheibe für Waschmaschine
US5437168A (en) * 1994-05-02 1995-08-01 Whirlpool Corporation Top loading horizontal axis automatic washer
US5448900A (en) * 1994-05-02 1995-09-12 Whirlpool Corporation System for automatically opening basket doors of a top loading horizontal axis automatic washer
EP0681050A2 (de) * 1994-05-02 1995-11-08 Whirlpool Corporation Vorrichtung zum Anhalten der Trommel für eine horizontalachsige Waschmaschine in Topladerbauweise
US5398528A (en) * 1994-05-02 1995-03-21 Whirlpool Corporation Pulley system for automatic washer
US5469593A (en) * 1994-05-02 1995-11-28 Whirlpool Corporation Basket positioning system for a top loading horizontal axis automatic washer
EP0681050A3 (de) * 1994-05-02 1997-07-09 Whirlpool Co Vorrichtung zum Anhalten der Trommel für eine horizontalachsige Waschmaschine in Topladerbauweise.
EP0681049A3 (de) * 1994-05-02 1997-07-09 Whirlpool Co Riemenscheibe für Waschmaschine.
AU681253B2 (en) * 1994-05-02 1997-08-21 Whirlpool Corporation Pulley system for automatic washer
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
US7111478B2 (en) * 2002-03-06 2006-09-26 Sanyo Electric Co., Ltd. Drum washing machine
US8522451B2 (en) 2008-07-02 2013-09-03 Whirlpool Corporation Method for spraying treating chemistry in a dispensing dryer
WO2013117244A1 (en) 2012-02-09 2013-08-15 Electrolux Laundry Systems France Snc A locking device for a moving element, particularly of a washing machine, and associated method
WO2018215004A1 (en) * 2017-05-26 2018-11-29 Alliance Laundry Ce S.R.O.. Two-positioning blocking device of a washing drums
CN111032946A (zh) * 2017-05-26 2020-04-17 联盟洗衣公司 洗涤滚筒的双位置阻滞装置
CN111032946B (zh) * 2017-05-26 2022-08-02 联盟洗衣公司 洗涤滚筒的双位置阻滞装置
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

Also Published As

Publication number Publication date
IT8821023A0 (it) 1988-06-17
EP0347393A3 (de) 1991-08-14
IT1218255B (it) 1990-04-12

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