EP3037579B1 - Dispositif de verrouillage pour la porte de fermeture d'appareils électroménagers - Google Patents

Dispositif de verrouillage pour la porte de fermeture d'appareils électroménagers Download PDF

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Publication number
EP3037579B1
EP3037579B1 EP14199608.2A EP14199608A EP3037579B1 EP 3037579 B1 EP3037579 B1 EP 3037579B1 EP 14199608 A EP14199608 A EP 14199608A EP 3037579 B1 EP3037579 B1 EP 3037579B1
Authority
EP
European Patent Office
Prior art keywords
interlock
wheel
door
slider
interlock device
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.)
Active
Application number
EP14199608.2A
Other languages
German (de)
English (en)
Other versions
EP3037579A1 (fr
Inventor
Stefano ROCCHITELLI
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.)
Elettrotecnica Rold SRL
Original Assignee
Elettrotecnica Rold SRL
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 Elettrotecnica Rold SRL filed Critical Elettrotecnica Rold SRL
Priority to PL14199608T priority Critical patent/PL3037579T3/pl
Priority to TR2018/09086T priority patent/TR201809086T4/tr
Priority to EP14199608.2A priority patent/EP3037579B1/fr
Priority to CN201580070067.5A priority patent/CN107109758B/zh
Priority to PCT/EP2015/080975 priority patent/WO2016102565A1/fr
Publication of EP3037579A1 publication Critical patent/EP3037579A1/fr
Application granted granted Critical
Publication of EP3037579B1 publication Critical patent/EP3037579B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open

Definitions

  • the present invention relates to an interlock device for the closing door of household appliances, particularly for washing machines and/or tumble dryers.
  • the drum is closed by a door with a hermetic seal, hinged to the front panel of the machine and provided with a closing catch that engages with an interlock device, also mounted on the front panel of the machine.
  • the interlock device also comprises an electromechanical delaying device for instantaneous interlocking and delayed release of the door which has the function of preventing opening of the door after the machine has been started and of delaying opening thereof at the end of the working cycle, for example to ensure that inside it the inertial rotation of the drum has ceased.
  • Door interlock devices are known that also perform the function of preventing starting of the machine with the door open by means of a microswitch that closes the machine operating circuit only when the door is closed and interlocked. Additionally, known devices, as well as inhibiting starting of the machine with the door open, also make it possible to interrupt its operating cycle in the case that, during operation of the machine, the door catch accidentally becomes detached from its seating, for example as a result of yielding of the catch or of the striking zone or through incorrect dimensioning thereof.
  • such kind of interlock device already known in the art comprises a support or containing body 1, preferably of thermoplastic material, which comprises, in a known way, a portion for fixing to the panel of the washing machine, closed by a cover 2, and a portion for housing a door interlock 3.
  • the door interlock or delaying device 3 is an electromechanical device, provided in a known manner with a latch 4, actuated by a thermal system, for example by the plate of the moving contact of a microswitch mounted in series on one phase of the machine operating current.
  • the door interlock 3 is provided with three terminals that extend to the outside in the form of quick-coupling or faston or blade contacts 15, 15', 15".
  • One of the contacts 15, called the locked-door contact has the function of detecting whether the device is in the "door closed” position and locked, and is actuated by a solenoid simultaneously with the interlock latch 4.
  • a second contact called the open-door contact, since it has the function of detecting whether the door catch 19 is inserted in the device, is actuated by an actuator 20.
  • the support 1 is provided with an opening 5, preferably having a rectangular shape, that receives the door catch 19 when the latter is closed.
  • the mechanical device for locking the door catch 19 consists of a catch or interlock wheel 6, able to rotate to correspond to opening 5 and subject to the action of a torsional spring 17.
  • Two sliders 7 and 8 are housed in the support 1 and, subject respectively to the action of coil springs 9 and 10, engage the interlock wheel 6 with their shaped ends, 13 and 16 respectively.
  • the first slider 7, in the central position, is provided with a window 11, for receiving the interlock latch 4 of the electromechanical delaying device 3, and has a shaped notch 12 for actuation of the actuator 20.
  • the second slider 8 carries, corresponding to notch 12 of the first slider 7, a shaped notch 14 for actuation of the actuator 20.
  • a further technical problem afflicts the interlock devices of the type described above, and in particular of the type comprising a containing body 1 which in turn comprises a portion for fixing to the panel of the washing machine, closed by a cover, and a portion for housing a door interlock, as per the example of interlock device.
  • the cover 2 houses the mechanical device for locking the door catch 19 which comprises the catch or interlock wheel 6, able to rotate to correspond to opening 5, and the torsional spring 17.
  • a drawback that afflicts the interlock device of the type described above is the disassembly of the cover 2 from the containing body 1 to which the latter is associated.
  • the disassembly of the interlock wheel 6 and/or of the cover 2 from the containing body 1 may therefore occur under different circumstances. Disassembly of the cover 2 could be caused for example by the hitting of the door catch 19 against the interlock wheel 6 during the closing of the door and when the interlock wheel 6 is in open position.
  • cover 2 disassembly could be caused by problems related to the interlock wheel 6 dimensions and position which could be out of tolerance, allowing the door catch 19 to slip off the interlock device before the snapping point position of the interlock wheel 19.
  • cover 2 disassembly may occur when the interlock wheel 6 does not fully rotate to its open position due to some friction with the containing body 1. In this case a little portion of the interlock wheel 6 could face the opening 5 and hit by the door catch 19 when the same is inserted into the opening 5 during the closing of the door.
  • the sliders 7 and 8 are, with their ends 13 and 16 respectively, up against the interlock wheel 6, which is arranged with the concavity facing the opening 5 so that it can receive the door catch 19.
  • the door catch 19, inserted in the opening 5 causes rotation of the interlock wheel 6 to the closing position and, at the same time, acts upon the shaped end 16 of the second slider 8, which moves to oppose the action of the spring 10.
  • the interlock device reveals a situation in which the door is closed and locked, and therefore the machine can be switched on.
  • the door interlock is supplied with current and moves the interlock latch 4 which enters window 11 on the first slider 7 locking it in the retaining position of the door catch 19, thus obstructing the rotation of the interlock wheel 6 to the opening position for the entire duration of the operating cycle.
  • the actuator 20 reveals a condition of door closed and locked, the door interlock 3 is supplied with current and moves the interlock latch 4 which enters window 11 on the first slider 7 and the machine can be switched on.
  • the present invention relates to an interlock device for the closing door of household appliances, particularly for washing machines and/or tumble dryers, of the kind suitable to detect closed and locked condition of the door, suitable to solve the problem left unsolved by the prior art, the device comprising the features as recited in claim 1.
  • the present invention relates to an interlock device for the closing door of household appliances suitable to solve the problems related to the disassembling of the cover which contains and retains the interlock wheel for retaining the door catch.
  • the present invention relates to an interlock device for the closing door of household appliances suitable to avoid the possibility that the appliance to which it is associated is switched on in case of disassembling of the interlock wheel.
  • the interlock device comprises a support or containing body 1' which comprises a portion for fixing to the panel of the washing machine, closed by a cover 2', and a portion for housing a door interlock 3'.
  • the door interlock or delaying device 3' is an electromechanical device, provided in a known manner with an interlock latch 4', actuated by a thermal system, for example by the plate of the moving contact of a microswitch mounted in series on one phase of the machine operating current.
  • the door interlock 3' is provided with three terminals that extend to the outside in the form of quick-coupling or faston or blade contacts.
  • locked-door contact has the function of detecting whether the device is in the "door closed” position and locked, and is actuated by a solenoid simultaneously with the interlock latch 4'.
  • a second contact has the function of detecting whether the door catch 19' is inserted in the device, is actuated by an actuator.
  • the support 1' is provided with an opening 5', preferably having a rectangular shape, that receives the door catch 19' when the latter is closed.
  • the mechanical device for locking the door catch 19' consists of a catch or interlock wheel 6', able to rotate to correspond to opening 5' and subject to the action of a torsional spring 17'.
  • Two sliders are housed in the support 1' and, each subject to the action of a coil spring, engage the interlock wheel 6' with their shaped ends.
  • the first slider 7' comprises a substantially elongated body 7'a provided with a window 11' for receiving the interlock latch 4' of the electromechanical interlock or delaying device 3', and has a shaped notch 12' for actuation of the actuator.
  • the interlock device comprises means for detecting a disassembly condition of the interlock wheel 6' and safety means for preventing the switching on of the household appliance when a disassembly condition of the interlock wheel 6' is detected.
  • safety means for preventing the switching on of the appliance are configured to hamper the closure of the operating circuit of the interlock or delaying device 3' when a disassembly condition of the interlock wheel 6' is detected.
  • said means for detecting a disassembly condition of the interlock wheel 6' and safety means are provided on said first slider 7'.
  • means for hampering the closure of the operating circuit of the interlock or delaying device 3' when a disassembly condition of the interlock wheel 6' is detected comprise, provided on the first slider 7', a locking pin 7'b which projects into the window 11' along the longitudinal direction of the elongated body 7'a, the longitudinal direction corresponding to the moving direction of the first slider 7' with respect to the support body 1'.
  • Means for detecting a disassembly condition of the interlock wheel 6' comprise, on the first slider 7', a longitudinal groove 7'd from which an arrest element 7'c projects upwardly from the body 7'a in a substantially orthogonal direction with respect to the longitudinal direction of the elongated body 7'.
  • the second slider not shown in the drawings is moved backward against a coil spring and acts on the actuator of the interlock or delaying device 3' revealing the condition of door closed.
  • the first slider 7' remains in its resting position of Figure 7 in which it obstructs the movement of the interlock latch 4' until the interlock wheel 6' has completed its rotation.
  • the stroke of the first slider 7' is limited by the arrest element 7'c which matches against a correspondent part 2'a of the cover 2', thus detecting the presence of the cover 2' and, consequently, of the interlock wheel 6'.
  • the interlock latch 4' enters the window 11' as visible in Figure 9 , closing the operating circuit of the interlock or delaying device 3', while the notch 12' actuates the actuator and closes the door-locked contact.
  • FIGS 11 and 12 show an interlock wheel 6' disassembly condition.
  • the door interlock 6' is supported and partially contained by the cover 2', which comprises the interlock wheel 6' and the torsional spring 17', as represented in the Figures, therefore when a disassembly of the cover 2' occurs, the interlock wheel 6' results disassembled too.
  • the first slider's arrest element 7'c does not match against the part 2'a of the cover 2' and consequently, under the action of the coil spring 9', the first slider 7' moves forward along the opening 5' area.
  • the arrest element 7'c is therefore suitable to detect a disassembly condition of the cover 2'.
  • the first slider 7' moves under the action of the spring 9' as represented in Figure 11 , and said first slider 7' moves with respect to the body 1' of an extra stroke, until the far internal end 11' a of the window 11' matches against a corresponding part 1'a of the body 1'.
  • the locking pin 7'b hampers the stroke of the interlock latch 4' and so, even on supplying current to the appliance, the operating circuit of the interlock or delaying device 3' cannot be closed because the locked-door contact is open.
  • the interlock device according to the present invention As described solves the technical problems left unsolved by the prior art. More in details, it has been shown that the interlock device according to the present invention allows to detect a disassembly condition of the interlock wheel 6' and, at the same time, to avoid the switching on of the machine by hampering the closure of the micro-switch 4' revealing the locked-door condition.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Patch Boards (AREA)

Claims (9)

  1. Dispositif de verrouillage réciproque de la porte de fermeture d'appareils ménagers, en particulier pour des lave-linge et/ou sèche-linge, comprenant un corps de support (1) qui comprend une partie destinée à une fixation au panneau de l'un desdits appareils ménagers, fermée par un couvercle (2') qui loge une roue de verrouillage réciproque (6') actionnée par des moyens élastiques (17'), un premier coulisseau (7') configuré pour verrouiller ladite roue de verrouillage réciproque (6'), et une partie logeant un dispositif de verrouillage réciproque de porte électromécanique (3') comprenant un circuit de fonctionnement adapté pour être connecté de manière fonctionnelle audit appareil et comprenant en outre un loquet de verrouillage (4') capable de verrouiller ledit premier coulisseau (7') dans la position de verrouillage de ladite roue (6'), caractérisé en ce qu'il comprend en outre des moyens pour détecter un état de désassemblage de la roue de verrouillage réciproque (6') par rapport audit corps de support (1), dans lequel ledit premier coulisseau (7') reste dans sa position de repos dans laquelle il obstrue le mouvement dudit loquet de verrouillage (4') jusqu'à ce que ledit loquet de verrouillage (6') ait achevé sa rotation, dans lequel la course dudit premier coulisseau (7') est limité par un élément d'arrêt (7'c) qui s'apparie contre des parties correspondantes (2'a) dudit couvercle (2'), en détectant ainsi la présence dudit couvercle (2') et, par conséquent, dudit loquet de verrouillage réciproque (6'), et en ce qu'il comprend en outre des moyens de sécurité pour empêcher la fermeture dudit circuit de fonctionnement dudit dispositif de verrouillage réciproque de porte électromécanique (3'), en évitant ainsi la mise en marche de l'appareil ménager lorsqu'un état de désassemblage du loquet de verrouillage réciproque (6') est détecté.
  2. Dispositif de verrouillage réciproque selon la revendication 1, caractérisé en ce que lesdits moyens pour détecter un état de désassemblage de la roue de verrouillage mutuel (6') et des moyens de sécurité pour empêcher la fermeture dudit circuit de fonctionnement dudit dispositif de verrouillage réciproque électromécanique (3'), en évitant ainsi la mise en marche de l'appareil, sont fournis sur ledit premier coulisseau (7').
  3. Dispositif de verrouillage réciproque selon une ou plusieurs des revendications précédentes, caractérisé en ce que ledit premier coulisseau (7') comprend un corps sensiblement allongé (7'a) pourvu d'une fenêtre (11') pour recevoir ledit loquet de verrouillage réciproque (4') dudit dispositif de verrouillage réciproque de porte électromécanique (3'), et une encoche mise en forme (12') pour l'actionnement d'un actionneur associé audit dispositif de verrouillage réciproque de porte électromécanique (3').
  4. Dispositif de verrouillage réciproque selon une ou plusieurs des revendications précédentes, caractérisé en ce que lesdits moyens pour détecter un état de désassemblage du loquet de verrouillage réciproque (6') comprennent, sur ledit premier coulisseau (7'), une rainure longitudinale (7'd) à partir de laquelle un élément d'arrêt (7'c) fait saillie vers le haut à partir du corps (7'a) dans une direction sensiblement orthogonale par rapport à la direction longitudinale du corps allongé (7'a).
  5. Dispositif de verrouillage réciproque selon une ou plusieurs des revendications précédentes, caractérisé en ce que lesdits moyens de sécurité pour empêcher la fermeture du circuit de fonctionnement du dispositif de verrouillage réciproque de porte électromécanique (3') comprennent, disposés sur ledit premier coulisseau (7'), une goupille de verrouillage (7'b) qui fait saillie dans ladite fenêtre (11') le long de la direction longitudinale du corps allongé (7'a).
  6. Dispositif de verrouillage réciproque selon une ou plusieurs des revendications précédentes, caractérisé en ce que ladite goupille de verrouillage (7'b) est configurée pour entraver la course dudit loquet de verrouillage réciproque (4') lorsqu'un état de désassemblage du loquet de verrouillage réciproque (6') est détecté de sorte que, même en fournissant du courant à l'appareil, le circuit de fonctionnement du dispositif de verrouillage réciproque de porte (3') ne peut pas être fermé.
  7. Dispositif de verrouillage réciproque selon une ou plusieurs des revendications précédentes, caractérisé en ce que lesdits moyens de sécurité comprennent en outre sur ledit corps de support (1') une partie (1'a) appropriée pour s'apparier contre l'extrémité interne distante (11'a) de ladite fenêtre (11').
  8. Dispositif de verrouillage réciproque selon une ou plusieurs des revendications précédentes, caractérisé en ce que lesdits moyens pour détecter un état de désassemblage de la roue de verrouillage réciproque (6') comprennent, sur ledit couvercle (2'), une partie (2'a) appropriée pour s'apparier contre ledit élément d'arrêt (7'c) dudit premier coulisseau (7').
  9. Appareil ménager comprenant un dispositif de verrouillage réciproque selon une ou plusieurs des revendications précédentes.
EP14199608.2A 2014-12-22 2014-12-22 Dispositif de verrouillage pour la porte de fermeture d'appareils électroménagers Active EP3037579B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PL14199608T PL3037579T3 (pl) 2014-12-22 2014-12-22 Urządzenie ryglujące do zamykania drzwi urządzeń gospodarstwa domowego
TR2018/09086T TR201809086T4 (tr) 2014-12-22 2014-12-22 Ev aletleri̇n kapatma kapisi i̇çi̇n ki̇li̇tleme terti̇bati.
EP14199608.2A EP3037579B1 (fr) 2014-12-22 2014-12-22 Dispositif de verrouillage pour la porte de fermeture d'appareils électroménagers
CN201580070067.5A CN107109758B (zh) 2014-12-22 2015-12-22 家用电器的关闭门的互锁装置
PCT/EP2015/080975 WO2016102565A1 (fr) 2014-12-22 2015-12-22 Dispositif d'enclenchement pour porte de fermeture d'appareils ménagers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14199608.2A EP3037579B1 (fr) 2014-12-22 2014-12-22 Dispositif de verrouillage pour la porte de fermeture d'appareils électroménagers

Publications (2)

Publication Number Publication Date
EP3037579A1 EP3037579A1 (fr) 2016-06-29
EP3037579B1 true EP3037579B1 (fr) 2018-03-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP14199608.2A Active EP3037579B1 (fr) 2014-12-22 2014-12-22 Dispositif de verrouillage pour la porte de fermeture d'appareils électroménagers

Country Status (5)

Country Link
EP (1) EP3037579B1 (fr)
CN (1) CN107109758B (fr)
PL (1) PL3037579T3 (fr)
TR (1) TR201809086T4 (fr)
WO (1) WO2016102565A1 (fr)

Families Citing this family (5)

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Publication number Priority date Publication date Assignee Title
IT201600130683A1 (it) 2016-12-23 2018-06-23 Illinois Tool Works Blocco-porta con un cursore di rilevamento gancio con sicurezza addizionale
EP3717687B1 (fr) 2017-11-30 2021-07-28 Illinois Tool Works Inc. Verrou de porte pour appareils électroménagers
CN108742416B (zh) * 2018-06-01 2021-09-21 佛山市顺德区美的洗涤电器制造有限公司 自动开门系统和家用电器
DE102019005564B3 (de) * 2019-05-10 2020-09-17 Emz-Hanauer Gmbh & Co. Kgaa Türverschluss für ein elektrisches Haushaltsgerät
CN115299832A (zh) * 2022-08-05 2022-11-08 佛山市百斯特电器科技有限公司 一种开门控制方法、装置、洗涤设备及存储介质

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US7617703B2 (en) * 2004-11-05 2009-11-17 Illinois Tool Works, Inc. Washing machine lid lock with memory wire actuator
EP2159316B1 (fr) * 2008-08-26 2011-10-12 Electrolux Home Products Corporation N.V. Machine à laver le linge
IT1392570B1 (it) * 2008-12-24 2012-03-09 Bitron Spa Dispositivo blocca-porta, particolarmente per apparecchi elettrodomestici
EP2415384B1 (fr) * 2010-08-03 2013-05-15 Miele & Cie. KG Serrure de porte pour appareils ménagers et lave-vaisselle doté d'une serrure de porte
IT1402143B1 (it) * 2010-09-27 2013-08-28 Bitron Spa Sistema per l apertura di un portello, in particolare per il portello di un elettrodomestico.
IT1402148B1 (it) * 2010-10-01 2013-08-28 Bitron Spa Modulo attuatore, sistema di bloccaggio-sbloccaggio di un portello di un elettrodomestico e relativo metodo di funzionamento.
WO2013011528A1 (fr) 2011-07-20 2013-01-24 Elettrotecnica Rold S.R.L. Mécanisme de verrouillage pour fermer une porte de machine à laver ou de sèche-linge
CN103233634B (zh) * 2012-01-18 2016-11-02 伊利诺斯工具制品有限公司 锁装置和安装锁装置的设备
FR2992157B1 (fr) * 2012-06-25 2015-01-09 Fagorbrandt Sas Machine a laver et a secher la vaisselle comprenant un dispositif d'ouverture de porte

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Also Published As

Publication number Publication date
EP3037579A1 (fr) 2016-06-29
WO2016102565A1 (fr) 2016-06-30
CN107109758B (zh) 2020-05-22
CN107109758A (zh) 2017-08-29
TR201809086T4 (tr) 2018-07-23
PL3037579T3 (pl) 2018-10-31

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