EP1039012A1 - Sicherheitstürverschluss-System insbesondere für Waschmaschinen mit eingebautem elektronischem System - Google Patents

Sicherheitstürverschluss-System insbesondere für Waschmaschinen mit eingebautem elektronischem System Download PDF

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Publication number
EP1039012A1
EP1039012A1 EP99830159A EP99830159A EP1039012A1 EP 1039012 A1 EP1039012 A1 EP 1039012A1 EP 99830159 A EP99830159 A EP 99830159A EP 99830159 A EP99830159 A EP 99830159A EP 1039012 A1 EP1039012 A1 EP 1039012A1
Authority
EP
European Patent Office
Prior art keywords
sliding member
door
fact
accordance
previous
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Withdrawn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
EP99830159A
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English (en)
French (fr)
Inventor
Giuseppe Bussini
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.)
Siber BV
Original Assignee
Siber 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 Siber BV filed Critical Siber BV
Priority to EP99830159A priority Critical patent/EP1039012A1/de
Publication of EP1039012A1 publication Critical patent/EP1039012A1/de
Withdrawn legal-status Critical Current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
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

  • the present invention regards a safety door lock system for use in particular on washing machines with an electronic system on board.
  • washing machines with rotating drums must be provided with a means which allows the door or port hole to open only when the machine is disconnected or when the drum has stopped or has almost stopped turning.
  • the known devices are always activated by the electronic system on board the machine so, in the case of a breakdown in the electronic system, this will automatically result in a breakdown in the safety door locking system.
  • the aim of the present invention is to eliminate the above listed drawbacks by achieving a safety door lock system, in particular for washing machines with an electronic system on board, which allows the machine to start immediately, as soon as the door is closed, and with no delay at the end of the cycle when the drum has stopped.
  • An important aim of the invention within the sphere of this objective, is to design, in particular, a safety door lock system for washing machines with an electronic system on board, which permits the machine to start immediately the door is closed, both during the drying phase and during the checking for dryness of clothes phase, even if the machine cycle has not finished.
  • Another aim of the invention is to achieve, in particular, a safety door lock system for washing machines with an electronic system on board which, besides being able to apply it indifferently to any model of washing machine, immediately locks the door catch once this is closed, and keeps it locked for all the programmed operations such as, the number of drum turns, the water level, the water temperature, etc..
  • a safety door lock system for washing and drying machines, with electronic systems on board, which include a housing or body containing an electromechanical device having at least one power micro-switch for starting the machine and an electromagnet connected to a slide system for locking and releasing the door of said machine.
  • Said slide system must include at least one slide element activated by the dosing of said door and at least one further slide element activated by said electromagnet, characterised by the fact that it includes a means of selection both to enable the movement of said latter element from a first position to a second position only following the shifting of position of said former slide element from a first to a second locking position of said door, opposed by an elastic means, and for the retaining of said first slide element in said second position when said second slide element is in said second position.
  • the door lock system in accordance with the invention, indicated as a whole by the reference number 1, includes a housing or body, as a whole indicated by 2, which is attached to the bodywork or frame of the washing machine by means of the two holes 4.
  • the body 2 contains an electromechanical device with at least one power micro-switch 5 to start the washing machine and an electromagnet 6 connected to a slide system for locking and releasing the door of the machine, not shown in the drawings.
  • the slide system includes at least one primary sliding member 7 which is moved by the door being closed, and in particular by the introduction of its connecting section into the opening 8, and at least one second sliding member 9 which is moved by the electromagnet 6.
  • the door lock includes a means of selection, indicated by the number 10, which allows the changing of position of the second sliding member from an initial position to a second locking position of said door only after the change of position of the first sliding member 7 has taken place on closing the door.
  • the first sliding member 7 will also be held by the selection means in the second position thus locking the door.
  • the safety measures include a labyrinth type member 12, sliding in a seating 13 in the body 2, with which it engages by means of a pin 14, the core 15 of the electromagnet.
  • the safety measures also include at least one electromechanical semiconductor 18 so as to limit the feed current to the electromagnet 6 in the case of an operating fault in the electronic system on board the machine.
  • This solution prevents, for example, the unwanted opening of the door should an element short circuit resulting in continuous feed of the electromagnet with consequent opening of the door of the machine.
  • the labyrinth type member 12 locks the movement of the second sliding member 9 in the first opening position of the door even if the electromagnet has been energised and the electromechanical semiconductor 18, on interrupting the feed to the electromagnet, prevents the latter from being successively energised to return the second sliding member to the release position of the door after a further "n" number of impulses.
  • the selection means 10 includes at least one catch 20 the end section of which protrudes from a opening 21 obtained in the housing 2.
  • the catch 20 turns in relation with the first sliding member 7 so as to protrude from the opening 21 when the first sliding member is in the initial position so as to prevent the movement of the second sliding member 9 in the second position.
  • the catch 20 is made to re-enter the opening 21 when the first sliding member is in the second position so as to enable also the movement of the second sliding member in the second position.
  • the second sliding member has a catch restraining face 22 in opening 21 when it is in the second position so as to prevent the return, caused by the action of the spring 11, of the first sliding member to the first position.
  • opening 21 has at least one lead-in delimited on one side by a sloping edge 23 and on the opposite side by a rounded edge 24.
  • the second sliding member 9 has control means, delimited by a tailpiece 25 of the power micro-switch 5.
  • the power micro-switch 5 includes a first part fulcrum element 40 of a movable contact 41 and a second fulcrum element 42 of a spring 43.
  • the spring 43 engages a pin placed at one end of a rod which limits the movable contact whereas the opposite end of the same is rounded and engages the first fulcrum element 40.
  • the movable contact 41 is moved from a first position into a second position and vice versa at a speed which does not depend on the speed of the movement of the tailpiece of the second sliding member.
  • the contact is snapped closed thus limiting the formation of micro-welding between the movable and fixed contacts 50.
  • phase 2 the door is closed and the catch is inserted into opening 8.
  • the movement loads the spring 11 and causes the catch 20 to retract into the opening 21 allowing the electromagnet to move the second sliding member 9.
  • the electromagnet When the electromagnet is powered it energises generating a magnetic field which attracts its integral core 15 to the second sliding member 9 which, by means of pin 14 moves the labyrinth unit 12 one or more positions depending on the number of excitations of the electromagnet.
  • the door lock in accordance with the invention is particularly advantageous in allowing the machine to start immediately as soon as the door is closed and no delay occurs at the end of the cycle when the drum is stopped. Stopping may also take place during any drying phase to check if clothes are dry, where complete safety is guaranteed on opening the door both when the complete cycle of the machine is not completed and in the case of an operating fault in the electronic system on board the machine.
  • the door is released by pulling the rod twice or "N" times where the same operating conditions exist as when there is power.
EP99830159A 1999-03-22 1999-03-22 Sicherheitstürverschluss-System insbesondere für Waschmaschinen mit eingebautem elektronischem System Withdrawn EP1039012A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP99830159A EP1039012A1 (de) 1999-03-22 1999-03-22 Sicherheitstürverschluss-System insbesondere für Waschmaschinen mit eingebautem elektronischem System

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99830159A EP1039012A1 (de) 1999-03-22 1999-03-22 Sicherheitstürverschluss-System insbesondere für Waschmaschinen mit eingebautem elektronischem System

Publications (1)

Publication Number Publication Date
EP1039012A1 true EP1039012A1 (de) 2000-09-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP99830159A Withdrawn EP1039012A1 (de) 1999-03-22 1999-03-22 Sicherheitstürverschluss-System insbesondere für Waschmaschinen mit eingebautem elektronischem System

Country Status (1)

Country Link
EP (1) EP1039012A1 (de)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1113103A2 (de) * 1999-12-29 2001-07-04 Lg Electronics Inc. Türverriegelung für eine Trommelwaschmaschine
KR100606695B1 (ko) * 1999-12-29 2006-08-01 엘지전자 주식회사 드럼세탁기의 도어 록 스위치 어셈블리
KR100675742B1 (ko) 2005-08-08 2007-01-30 두얼메카닉스 주식회사 드럼세탁기 도어의 회전락장치
WO2009004447A1 (en) * 2007-06-29 2009-01-08 Itw Metalflex, Druzba Za Proizvodnjo Delov Za Gospodinjske Aparate, D.O.O. Electromagnetic blocking device for the door of an electric household appliance
EP1621658A3 (de) * 2004-07-30 2009-07-01 BITRON S.p.A. Eine Türverriegelungseinrichtung, insbesondere für ein Haushaltgerät
EP2278058A1 (de) * 2009-07-17 2011-01-26 Elettrotecnica Rold Srl Vorrichtung zum Sperren der Bullaugentür von Waschmaschinen und Trocknern
CN104233712A (zh) * 2014-09-11 2014-12-24 杭州神林电子有限公司 一种电磁门锁装置
US8991877B2 (en) 2004-12-16 2015-03-31 Emz-Hanauer Gmbh & Co. Kgaa Door lock for the door of a household appliance
CN107190477A (zh) * 2017-05-26 2017-09-22 无锡小天鹅股份有限公司 洗衣机及其洗涤剂抽斗控制方法
CN113981648A (zh) * 2021-11-16 2022-01-28 江苏海狮机械股份有限公司 一种车载洗脱烘一体机
US11578508B2 (en) * 2016-12-09 2023-02-14 Bitron S.P.A. Door-locking device with safety system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1604581A (en) * 1978-05-30 1981-12-09 Servis Domestic Appliances Ltd Latching mechanisms
EP0347592A1 (de) * 1988-05-28 1989-12-27 Ellenberger & Poensgen GmbH Türverriegelungsvorrichtung für elektrische Geräte
EP0439849A1 (de) * 1989-12-18 1991-08-07 Onofrio Rocchitelli Türverriegelungsvorrichtung mit schneller Verriegelung und verzögerter Entriegelung, insbesondere für eine Waschmaschine
EP0600390A1 (de) * 1992-12-01 1994-06-08 Carlo Gavazzi AG Sicherheitstürverschluss-Struktur insbesondere für Waschmaschinen mit eingebautem elektronischem System
EP0808935A2 (de) * 1996-05-22 1997-11-26 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Waschmaschine mit einer sofortwirkenden Türverriegelungsvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1604581A (en) * 1978-05-30 1981-12-09 Servis Domestic Appliances Ltd Latching mechanisms
EP0347592A1 (de) * 1988-05-28 1989-12-27 Ellenberger & Poensgen GmbH Türverriegelungsvorrichtung für elektrische Geräte
EP0439849A1 (de) * 1989-12-18 1991-08-07 Onofrio Rocchitelli Türverriegelungsvorrichtung mit schneller Verriegelung und verzögerter Entriegelung, insbesondere für eine Waschmaschine
EP0600390A1 (de) * 1992-12-01 1994-06-08 Carlo Gavazzi AG Sicherheitstürverschluss-Struktur insbesondere für Waschmaschinen mit eingebautem elektronischem System
EP0808935A2 (de) * 1996-05-22 1997-11-26 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Waschmaschine mit einer sofortwirkenden Türverriegelungsvorrichtung

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1113103A2 (de) * 1999-12-29 2001-07-04 Lg Electronics Inc. Türverriegelung für eine Trommelwaschmaschine
EP1113103A3 (de) * 1999-12-29 2001-09-12 Lg Electronics Inc. Türverriegelung für eine Trommelwaschmaschine
KR100606695B1 (ko) * 1999-12-29 2006-08-01 엘지전자 주식회사 드럼세탁기의 도어 록 스위치 어셈블리
EP1621658A3 (de) * 2004-07-30 2009-07-01 BITRON S.p.A. Eine Türverriegelungseinrichtung, insbesondere für ein Haushaltgerät
EP2075365A1 (de) * 2004-07-30 2009-07-01 BITRON S.p.A. Eine Türverriegelungseinrichtung, insbesondere für ein Haushaltgerät
US8991877B2 (en) 2004-12-16 2015-03-31 Emz-Hanauer Gmbh & Co. Kgaa Door lock for the door of a household appliance
KR100675742B1 (ko) 2005-08-08 2007-01-30 두얼메카닉스 주식회사 드럼세탁기 도어의 회전락장치
US8556308B2 (en) 2007-06-29 2013-10-15 Itw Metalflex, Druzba za Proizvodnjo Delov za Gospondinjske Aparate, D.O.O. Electromagnetic blocking device for the door of an electric household appliance, in particular the door of a washing machine
WO2009004447A1 (en) * 2007-06-29 2009-01-08 Itw Metalflex, Druzba Za Proizvodnjo Delov Za Gospodinjske Aparate, D.O.O. Electromagnetic blocking device for the door of an electric household appliance
EP2278058A1 (de) * 2009-07-17 2011-01-26 Elettrotecnica Rold Srl Vorrichtung zum Sperren der Bullaugentür von Waschmaschinen und Trocknern
CN104233712A (zh) * 2014-09-11 2014-12-24 杭州神林电子有限公司 一种电磁门锁装置
CN104233712B (zh) * 2014-09-11 2018-06-08 杭州神林电子有限公司 一种电磁门锁装置
US11578508B2 (en) * 2016-12-09 2023-02-14 Bitron S.P.A. Door-locking device with safety system
CN107190477A (zh) * 2017-05-26 2017-09-22 无锡小天鹅股份有限公司 洗衣机及其洗涤剂抽斗控制方法
CN107190477B (zh) * 2017-05-26 2019-08-16 无锡小天鹅电器有限公司 洗衣机及其洗涤剂抽斗控制方法
CN113981648A (zh) * 2021-11-16 2022-01-28 江苏海狮机械股份有限公司 一种车载洗脱烘一体机
CN113981648B (zh) * 2021-11-16 2023-08-18 江苏海狮机械股份有限公司 一种车载洗脱烘一体机

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