WO2016102565A1 - Dispositif d'enclenchement pour porte de fermeture d'appareils ménagers - Google Patents

Dispositif d'enclenchement pour porte de fermeture d'appareils ménagers Download PDF

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Publication number
WO2016102565A1
WO2016102565A1 PCT/EP2015/080975 EP2015080975W WO2016102565A1 WO 2016102565 A1 WO2016102565 A1 WO 2016102565A1 EP 2015080975 W EP2015080975 W EP 2015080975W WO 2016102565 A1 WO2016102565 A1 WO 2016102565A1
Authority
WO
WIPO (PCT)
Prior art keywords
interlock
door
slider
wheel
interlock device
Prior art date
Application number
PCT/EP2015/080975
Other languages
English (en)
Inventor
Stefano ROCCHITELLI
Original Assignee
Elettrotecnica Rold S.R.L.
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 S.R.L. filed Critical Elettrotecnica Rold S.R.L.
Priority to CN201580070067.5A priority Critical patent/CN107109758B/zh
Publication of WO2016102565A1 publication Critical patent/WO2016102565A1/fr

Links

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.
  • 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.
  • 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 1 1 , 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 1 1 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 1 1 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 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.
  • FIG. 4 is a perspective view of the main support body of the interlock device according to the present invention.
  • FIG. 5 is an perspective view of the second slider of the interlock device according to the present invention.
  • FIG. 6 is a perspective view of the cover of the interlock wheel of the device according to the present invention.
  • FIG. 7 is a sectional view of the interlock device according to the present invention in a rest condition in which the door is open;
  • Figure 8 is the same sectional view of Figure 7 in a condition in which the door is closed;
  • Figure 9 is the same sectional view of Figure 8 in a condition in which the door is locked;
  • FIG. 10 represents the same operative condition of the interlock device of Figure 9, sectioned with a section plane perpendicular to the section plane of Figure 9;
  • Figure 1 1 represents the same section view of Figure 9 in a disassembly of the interlock wheel situation
  • Figure 12 represents the same condition of Figure 1 1 corresponding to a disassembly of the interlock wheel, sectioned with a section plane perpendicular to the section plane of Figure 1 1.
  • the interlock device comprises a support or containing body ⁇ 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 ⁇ 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 ⁇ 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 1 ⁇ 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 1 ⁇ 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 ⁇ .
  • 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 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 1 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.
  • Figures 1 1 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 1 1 , and said first slider 7' moves with respect to the body ⁇ of an extra stroke, until the far internal end 1 1 ' a of the window 1 ⁇ matches against a corresponding part l ' a of the body ⁇ .
  • 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.

Landscapes

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

Abstract

La présente invention concerne un dispositif d'enclenchement pour porte de fermeture d'appareils ménagers, en particulier pour des lave-linge et/ou sèche-linge, du type convenant pour détecter un état fermé et verrouillé de la porte, pour détecter un état de démontage du couvercle qui contient et retient la roulette d'enclenchement servant à retenir le loquet de la porte et pour éviter le possibilité que l'appareil auquel il est associé soit allumé en cas de démontage de la roulette d'enclenchement.
PCT/EP2015/080975 2014-12-22 2015-12-22 Dispositif d'enclenchement pour porte de fermeture d'appareils ménagers WO2016102565A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201580070067.5A CN107109758B (zh) 2014-12-22 2015-12-22 家用电器的关闭门的互锁装置

Applications Claiming Priority (2)

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

Publications (1)

Publication Number Publication Date
WO2016102565A1 true WO2016102565A1 (fr) 2016-06-30

Family

ID=52146276

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/080975 WO2016102565A1 (fr) 2014-12-22 2015-12-22 Dispositif d'enclenchement pour porte de fermeture d'appareils ménagers

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)

Cited By (3)

* Cited by examiner, † Cited by third party
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
WO2019108514A1 (fr) 2017-11-30 2019-06-06 Illinois Tool Works Inc. Verrou de porte pour appareils électroménagers
WO2024027167A1 (fr) * 2022-08-05 2024-02-08 佛山市百斯特电器科技有限公司 Procédé et appareil de commande d'ouverture de porte, dispositif de lavage et support de stockage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060101869A1 (en) * 2004-11-05 2006-05-18 Ark-Les Corporation Washing machine lid lock with memory wire actuator
EP2159316A1 (fr) * 2008-08-26 2010-03-03 Electrolux Home Products Corporation N.V. Machine à laver le linge
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
WO2013109585A2 (fr) * 2012-01-18 2013-07-25 Illinois Tool Works Inc. Dispositif de verrou et appareil comprenant ledit dispositif de verrou

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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.
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060101869A1 (en) * 2004-11-05 2006-05-18 Ark-Les Corporation Washing machine lid lock with memory wire actuator
EP2159316A1 (fr) * 2008-08-26 2010-03-03 Electrolux Home Products Corporation N.V. Machine à laver le linge
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
WO2013109585A2 (fr) * 2012-01-18 2013-07-25 Illinois Tool Works Inc. Dispositif de verrou et appareil comprenant ledit dispositif de verrou

Cited By (5)

* Cited by examiner, † Cited by third party
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
WO2018118637A1 (fr) 2016-12-23 2018-06-28 Illinois Tool Works, Inc. Serrure de porte dotée d'un curseur de détection de crochet comportant une sécurité supplémentaire
US11124915B2 (en) 2016-12-23 2021-09-21 Illinois Tool Works Inc. Door-lock with a hook detection slider with additional security
WO2019108514A1 (fr) 2017-11-30 2019-06-06 Illinois Tool Works Inc. Verrou de porte pour appareils électroménagers
WO2024027167A1 (fr) * 2022-08-05 2024-02-08 佛山市百斯特电器科技有限公司 Procédé et appareil de commande d'ouverture de porte, dispositif de lavage et support de stockage

Also Published As

Publication number Publication date
CN107109758B (zh) 2020-05-22
EP3037579B1 (fr) 2018-03-28
PL3037579T3 (pl) 2018-10-31
TR201809086T4 (tr) 2018-07-23
CN107109758A (zh) 2017-08-29
EP3037579A1 (fr) 2016-06-29

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