EP0808935A2 - Waschmaschine mit einer sofortwirkenden Türverriegelungsvorrichtung - Google Patents

Waschmaschine mit einer sofortwirkenden Türverriegelungsvorrichtung Download PDF

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Publication number
EP0808935A2
EP0808935A2 EP97106498A EP97106498A EP0808935A2 EP 0808935 A2 EP0808935 A2 EP 0808935A2 EP 97106498 A EP97106498 A EP 97106498A EP 97106498 A EP97106498 A EP 97106498A EP 0808935 A2 EP0808935 A2 EP 0808935A2
Authority
EP
European Patent Office
Prior art keywords
door
moving element
washing machine
machine
clothes washing
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
EP97106498A
Other languages
English (en)
French (fr)
Other versions
EP0808935A3 (de
EP0808935B1 (de
Inventor
Giuseppe Frucco
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.)
Electrolux Zanussi SpA
Original Assignee
Electrolux Zanussi Elettrodomestici SpA
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 Electrolux Zanussi Elettrodomestici SpA filed Critical Electrolux Zanussi Elettrodomestici SpA
Publication of EP0808935A2 publication Critical patent/EP0808935A2/de
Publication of EP0808935A3 publication Critical patent/EP0808935A3/de
Application granted granted Critical
Publication of EP0808935B1 publication Critical patent/EP0808935B1/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
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

  • the present invention generally refers machines for washing clothes, in particular clothes washing machines of the front-loading type, provided with an improved type of safety door interlock arrangement.
  • Household-type washing machines are known in the art which are provided with door interlock arrangements of various type and with different characteristics. According to their mode of operation, all such arrangements can be grouped into following homogeneous categories:
  • Such a door interlock arrangtement has a third major drawback in that, should the coil of the same door interlock arrangement happen to become energized accidentally, eg. due to a short-circuit condition of the Triac, the washing machine remains electrically energized as well, so that it is still enabled to carry out all the various operations and working steps provided for by the washing cycle that is being performed (including therefore also those steps and phases involving hazardous operating conditions), while the door can in fact be opened all the time.
  • the European patent specification no. 0 384 148 to the same Applicant discloses a door interlock arrangement for clothes washing or clothes drying machines which comprises an electromechanical actuator associated to a latch or bolt interacting with the lock of the loading door, so as top lock and unlock the same loading door, said door interlock arrangement further comprising an electrical contact connected in the electric circuit of the electromechanical actuator and adapted to energize and de-energize the same actuator.
  • Such a door interlock arrangement shall furthermore be constructed so as to be able to prevent, after the machine has been switched on, but before the door is closed, the electric loads thereof from being energized, thereby preventing them from being started or actuated and, therefore, eliminating another of the afore cited drawbacks.
  • Safety conditions as provided for by the applying standard regulations must furthermore be ensured, according to which a single command pulse that may be transmitted to the electrically operated door-release device shall not be sufficient to cause it to actually release the door.
  • a construction shall also be provided so that a possible interruption of the power supply to the electromagnet, ie. a de-energization thereof, owing to some failure whatsoever (eg. a short-circuit condition in a Triac) is not capable of affecting the overall safety of the machine in any way.
  • Said door interlock arrangement shall further be of simple, inexpensive construction, shall be capable of operating reliably, and shall make use of readily available, normally used techniques.
  • the solution according to the invention basically consists in making use of and combining the:
  • the door interlock arrangement 1 which is normally positioned in the machine on the inner surface of the frame defining the clothes loading opening of the machine that is closed by the door, comprises an electric actuator 2, which is typically an electromagnet, but may be formed as well by any other device offering equivalent performance profiles in terms of instantaneous or almost instantaneous operation capabilities, said actuator being energized through a first conductor 3 that is connected to the power supply, and a second conductor 4 that is connected to a current control device 5, typically a Triac.
  • an electric actuator 2 which is typically an electromagnet, but may be formed as well by any other device offering equivalent performance profiles in terms of instantaneous or almost instantaneous operation capabilities, said actuator being energized through a first conductor 3 that is connected to the power supply, and a second conductor 4 that is connected to a current control device 5, typically a Triac.
  • Such a door interlock arrangement is adapted to be energized by electric pulses, wherein at each pulse a moving element 6 extends from the door interlock arrangement, said moving element being adapted to extend to progressively more or less protruding positions in accordance with the number and the polarity of the pulses received, as well as to retract to a withdrawal position in which said moving element is fully disengaged from the rest of the machine.
  • Said extended positions are at least in the number of two.
  • an appropriate catch means 11 adapted to engage said moving element when the latter extends to its first or second extracted position, thereby preventing the door from being opened, whereas in the retracted position of said moving element said catch means is disengaged, thereby enabling the door to be opened.
  • a switch 7 Connected to and actuated by said moving element there is provided a switch 7 which is closed when the moving element is in its first or its second extracted position, and is on the contrary opened when the moving element moves back to its retracted position.
  • a terminal 8 of said switch connects to the power supply, while the other terminal 9 thereof is connected to a control and command device 10, to which also said current control device 5 is connected along, via further connections 13, also other operational and sensing devices of the machine.
  • a plurality of signals that may possibly be present at said connections 13 relating to operating conditions that have been previously defined as "non hazardous” and are therefore compatible with an immediate or instantaneous opening of the door, are stored in the control and command device 10.
  • Said control device is then constructed so as to enable following operational sequences and modes:
  • the terminal 9 of the switch 7 sends an appropriate electric signal to the control device 10, which is capable of verifying the congruity between the door locking command transmitted and the confirmation that the door has been actually locked.
  • a first such improvement can be noticed to consist in arranging between a plurality of loads 20 and the related power-supply line 21 an appropriate switch 22 of the normally open type, which is adapted to be closed by the action of the prong 23 of the door when the latter is shut.
  • the pole of said switch 22 opposite to the live pole thereof is connected via the connection 25 to said control device 10.
  • the second improvement can be noticed to essentially consist in the provision of a indicating device 27 arranged through an appropriate connection 26 between said connection 9 (connecting the switch 7 to the device 10) and the other pole of the power supply with respect to the power supply to the connection 8.
  • such an indicating device When so connected, such an indicating device enables the user of the machine to immediately make out whether said door interlock arrangement is locking due to the position of the moving element 6 thereof and, therefore, to know whether in that very moment it is possible for the door to be opened or not.
  • said indicating device 27 which shall preferably be of the illuminating type, inform that the loading door is locked, the user will immediately conform to the situation and, in particular, will therefore avoid tampering in an effort to force the loading door open, as well as running into hazardous situations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Washing Machine And Dryer (AREA)
  • Lubricants (AREA)
EP97106498A 1996-05-22 1997-04-19 Waschmaschine mit einer sofortwirkenden Türverriegelungsvorrichtung Expired - Lifetime EP0808935B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN960030 1996-05-22
IT96PN000030A IT1289378B1 (it) 1996-05-22 1996-05-22 Lavabiancheria con bloccoporta istantaneo

Publications (3)

Publication Number Publication Date
EP0808935A2 true EP0808935A2 (de) 1997-11-26
EP0808935A3 EP0808935A3 (de) 1998-08-05
EP0808935B1 EP0808935B1 (de) 2002-06-19

Family

ID=11395143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97106498A Expired - Lifetime EP0808935B1 (de) 1996-05-22 1997-04-19 Waschmaschine mit einer sofortwirkenden Türverriegelungsvorrichtung

Country Status (4)

Country Link
EP (1) EP0808935B1 (de)
DE (1) DE69713455T2 (de)
ES (1) ES2178728T3 (de)
IT (1) IT1289378B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1039012A1 (de) * 1999-03-22 2000-09-27 Siber B.V. Sicherheitstürverschluss-System insbesondere für Waschmaschinen mit eingebautem elektronischem System
WO2009000690A1 (en) * 2007-06-26 2008-12-31 Arcelik Anonim Sirketi A washer/dryer
WO2010070399A2 (en) 2008-12-19 2010-06-24 Indesit Company S.P.A. Household appliance with a door locking device
DE102014209113A1 (de) 2014-05-14 2015-11-19 BSH Hausgeräte GmbH Verriegelungseinrichtung zum Verriegeln einer Tür eines Haushaltsgeräts, Haushaltsgerät und entsprechendes Verfahren
CN107810294A (zh) * 2015-08-17 2018-03-16 三星电子株式会社 洗衣机及其控制方法
WO2021032040A1 (zh) * 2019-08-20 2021-02-25 青岛海尔滚筒洗衣机有限公司 一种洗涤设备及洗涤设备滚筒解锁的判定方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007058380A1 (de) * 2007-12-05 2009-06-10 BSH Bosch und Siemens Hausgeräte GmbH Schaltungsanordnung zum Betreiben eines Hausgeräts

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381022A1 (de) * 1989-01-30 1990-08-08 INDUSTRIE ZANUSSI S.p.A. Türverriegelungsvorrichtung für eine Waschmaschine oder einen Wäschetrockner
EP0384148A1 (de) * 1989-02-21 1990-08-29 INDUSTRIE ZANUSSI S.p.A. Türverriegelungsvorrichtung für eine Waschmaschine oder einen Trockner
EP0483697A1 (de) * 1990-11-02 1992-05-06 YMOS AKTIENGESELLSCHAFT Industrieprodukte Magnetverschluss
EP0588041A1 (de) * 1992-09-17 1994-03-23 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Türverriegelung für Waschmaschinen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0381022A1 (de) * 1989-01-30 1990-08-08 INDUSTRIE ZANUSSI S.p.A. Türverriegelungsvorrichtung für eine Waschmaschine oder einen Wäschetrockner
EP0384148A1 (de) * 1989-02-21 1990-08-29 INDUSTRIE ZANUSSI S.p.A. Türverriegelungsvorrichtung für eine Waschmaschine oder einen Trockner
EP0483697A1 (de) * 1990-11-02 1992-05-06 YMOS AKTIENGESELLSCHAFT Industrieprodukte Magnetverschluss
EP0588041A1 (de) * 1992-09-17 1994-03-23 ELECTROLUX ZANUSSI ELETTRODOMESTICI S.p.A. Türverriegelung für Waschmaschinen

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1039012A1 (de) * 1999-03-22 2000-09-27 Siber B.V. Sicherheitstürverschluss-System insbesondere für Waschmaschinen mit eingebautem elektronischem System
WO2009000690A1 (en) * 2007-06-26 2008-12-31 Arcelik Anonim Sirketi A washer/dryer
CN101688355B (zh) * 2007-06-26 2012-05-23 阿塞里克股份有限公司 洗涤机/干燥机
US8590346B2 (en) 2007-06-26 2013-11-26 Arcelik Anonim Sirketi Washer/dryer
WO2010070399A2 (en) 2008-12-19 2010-06-24 Indesit Company S.P.A. Household appliance with a door locking device
DE102014209113A1 (de) 2014-05-14 2015-11-19 BSH Hausgeräte GmbH Verriegelungseinrichtung zum Verriegeln einer Tür eines Haushaltsgeräts, Haushaltsgerät und entsprechendes Verfahren
CN107810294A (zh) * 2015-08-17 2018-03-16 三星电子株式会社 洗衣机及其控制方法
EP3287557A4 (de) * 2015-08-17 2018-05-30 Samsung Electronics Co., Ltd. Waschmaschine und verfahren zur steuerung davon
AU2016307570B2 (en) * 2015-08-17 2018-10-18 Samsung Electronics Co., Ltd. Washing machine and method for controlling same
AU2019200385B2 (en) * 2015-08-17 2020-05-07 Samsung Electronics Co., Ltd. Washing machine and method for controlling same
US10745851B2 (en) 2015-08-17 2020-08-18 Samsung Electronics Co., Ltd. Washing machine and method for controlling same
US11578445B2 (en) 2015-08-17 2023-02-14 Samsung Electronics Co., Ltd. Washing machine and method for controlling same
WO2021032040A1 (zh) * 2019-08-20 2021-02-25 青岛海尔滚筒洗衣机有限公司 一种洗涤设备及洗涤设备滚筒解锁的判定方法

Also Published As

Publication number Publication date
DE69713455T2 (de) 2003-02-20
ES2178728T3 (es) 2003-01-01
ITPN960030A0 (it) 1996-05-22
EP0808935A3 (de) 1998-08-05
ITPN960030A1 (it) 1997-11-22
DE69713455D1 (de) 2002-07-25
EP0808935B1 (de) 2002-06-19
IT1289378B1 (it) 1998-10-02

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