EP0600390A1 - Sicherheitstürverschluss-Struktur insbesondere für Waschmaschinen mit eingebautem elektronischem System - Google Patents

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

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Publication number
EP0600390A1
EP0600390A1 EP93119089A EP93119089A EP0600390A1 EP 0600390 A1 EP0600390 A1 EP 0600390A1 EP 93119089 A EP93119089 A EP 93119089A EP 93119089 A EP93119089 A EP 93119089A EP 0600390 A1 EP0600390 A1 EP 0600390A1
Authority
EP
European Patent Office
Prior art keywords
door
slider member
slider
engages
structure according
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
EP93119089A
Other languages
English (en)
French (fr)
Other versions
EP0600390B1 (de
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 SpA
Original Assignee
Carlo Gavazzi AG
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 Carlo Gavazzi AG filed Critical Carlo Gavazzi AG
Publication of EP0600390A1 publication Critical patent/EP0600390A1/de
Application granted granted Critical
Publication of EP0600390B1 publication Critical patent/EP0600390B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0009—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with thermo-electric actuators, e.g. heated bimetals
    • 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 relates to a safety door lock structure particularly for washing machines with built-in electronic system.
  • the temperature at the end of the operating cycle is in fact extremely high and therefore decisively affects for example devices for releasing the slider of doors which use, for their operation, the expansivity of solid bodies or the expansion of a substance which has a high expansion coefficient.
  • the aim of the present invention is to eliminate the drawbacks described above by providing a safety door lock structure particularly for washing machines with built-in electronic system which allows immediate startup of the machine as soon as the door has been closed and no delay at the end of the cycle, when the basket has stopped.
  • an important object of the invention is to provide a safety door lock structure particularly for washing machines with built-in electronic system which allows immediate startup of the machine as soon as the door is closed, both during drying and during inspection of the dried clothes, even if the cycle of the machine has not ended.
  • Another object of the invention is to provide a safety door lock structure particularly for washing machines with built-in electronic system which, in addition to being applicable indifferently to any model of washing machine, allows the immediate blocking of the door latch, once the door has been closed, and keeps it blocked for all programmed functions, such as for example the rpm rate of the basket, the water level, the water temperature, etc.
  • a safety door lock structure particularly for washing machines with built-in electronic system which has an electromechanical device, contained in a containment body which can be associated with the cabinet of the washing machine, which includes a power microswitch for starting the washing machine and an electromagnet which is connected to a mechanical means for blocking and releasing the door of the machine, characterized in that the mechanical means has a first slider member and a second slider member, both of which are activated, in contrast with and by virtue of the action of a first elastic means, both by the door to block it automatically in closed position and by the electromagnet to instantly release the door from the closed position to an open position.
  • the door lock structure according to the invention includes an electromechanical device, generally designated by the reference numeral 2, which can be associated with the cabinet or with the frame of the washing machine by means of the two holes 4.
  • the electromechanical device 2 includes a power microswitch 5 for starting the washing machine; the microswitch is connected to a mechanical means for blocking and releasing the door 12; the door is partially shown in the drawings, and the means is formed by a first slider member 8 and by a second slider member 9.
  • the mechanical means 7 is conveniently activated, in contrast with and by virtue of the action of a first elastic means, more precisely of two springs 10, both by the latch 11 of the door 12, so as to block the door in a closed position, and by the electromagnet 6, in order to release the latch 11 and thus allow the door 12 to move from a closed position to an open position.
  • the first and second slider members 8 and 9 include a means to allow their offset movement during blocking and release of the door 12.
  • the movement means is formed by a second elastic means and more precisely by a second spring 24 accommodated in a first and second seats 14 which are formed in the first and second slider members one above the other and mutually communicating.
  • the spring 24 is on one side retained between the wall 15 of the second slider member and on the other side by the wall 16 of the first slider member respectively.
  • the end of the wall 15 is engaged in the first seat 14 of the first slider member 8 and abuts the wall 17 of the slider member.
  • the end of the wall 16 is engaged in the second seat 14 of the second slider member 9 and abuts the wall 60 of the second slider member.
  • the first and second slider members can slide selectively in contrast and by the action of the two springs 10 and of spring 24. It is apparent that the use of only one spring 24, for operating both the first and second slider members, allows to reduce considerably the size of the mechanical means for locking and releasing the door.
  • At least the second slider member 9 includes an opening 19 inside which the latch 11 of the door 12 engages.
  • the opening 19 has an inclined wall 20 which during door closure engages, so that it can slide, the inclined wall 21 of the latch 11 to move the second slider member to the right.
  • the latch 11 furthermore compresses, for example, a third elastic means, and more precisely a third spring 25 which, during the opening of the door 12, facilitates the protrusion of the latch 11 from the opening 19.
  • the first slider member 8 is connected to the electromagnet 6 and has two arms 30 and 31 which extend perimetrically with respect to the electromagnet 6.
  • the ends of the two arms 30 and 31 thus face each other, are spaced and are suitable to actuate, by means of two fingers 33, the microswitch 5 during their movement from left to right and vice versa, respectively during the blocking of the door 12 and during its release.
  • the power microswitch 5 includes a first fulcrum member 40 of a moving contact 41 and a second fulcrum member 42 of a spring 43.
  • the spring 43 engages a pin which is located at one end of the rod which forms the moving contact, whereas the opposite end of the spring is rounded and engages the first fulcrum member 40.
  • the moving contact 41 is moved from a first position to a second position and vice versa, with a transfer speed which is independent of the movement speed of the two end fingers 33 of the arms 30 and 31 of the first slider member.
  • This solution advantageously allows to close and open the electrical contacts with no sliding between the moving contact and the slider and thus without friction and wear.
  • the closure of the contact furthermore has a snap action without uncertainties, thereby limiting the forming of microwelds between the moving contact and the fixed contact 50.
  • the device in any case maintains its block on the latch 11 and does not allow to open the door.
  • the moving contact 41 can rest on the side of the body 2 or on a second fixed contact, not shown in the drawings, which allows for example to activate a light-emitting signal which is suitable to indicate that it is possible to access the inside of the machine.
  • the power microswitch is open, and the first slider member 8 and the second slider member 9 are in release position.
  • the power microswitch 5 does not allow the machine to start.
  • step 2 the door is closed and the latch 11 is thus blocked.
  • the latch 11 performs its closure stroke and presses on the inclined wall 20 of the second slider member 9, moving it to the right ( Figure 4).
  • This movement loads the spring 24 which, in turn, pushes the first slider member 8 below the tooth of the latch 11 only and exclusively when it has performed a further stroke of at least 0.5-1 mm.
  • the coil 6 is energized by means of an external button, not shown in the drawings, which is present on the panel of the machine.
  • the coil When the coil is energized, it generates a magnetic field which attracts its core, which is fixed to the first slider member 8, which in this case moves to the left, releasing the latch 11 and simultaneously switching the power microswitch 5 from the closed-contact position to the open-contact position. At the same time, since the latch 11 is disengaged from the second slider member 9, the thrust of the spring 25 expels the latch from its seat, resuming the conditions of step 1.
  • the door lock structure according to the invention is particularly advantageous in that it allows the machine to start immediately as soon as the door has been closed and allows no delay at the end of the cycle, when the basket has stopped both during the drying step, if any, and for inspecting the dry clothes, even if the complete cycle of the machine has not ended.
  • the materials employed, as well as the dimensions, may be any according to the requirements and the state of the art.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Electric Ovens (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Lock And Its Accessories (AREA)
EP93119089A 1992-12-01 1993-11-26 Sicherheitstürverschluss-Struktur, insbesondere für Waschmaschinen mit eingebautem elektronischen System Expired - Lifetime EP0600390B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI921026U 1992-12-01
IT92MI001026U IT227025Y1 (it) 1992-12-01 1992-12-01 Struttura di bloccaporta di sicurezza particolarmente per macchine lavabiancheria con sistema elettronico a bordo

Publications (2)

Publication Number Publication Date
EP0600390A1 true EP0600390A1 (de) 1994-06-08
EP0600390B1 EP0600390B1 (de) 1997-03-26

Family

ID=11363121

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93119089A Expired - Lifetime EP0600390B1 (de) 1992-12-01 1993-11-26 Sicherheitstürverschluss-Struktur, insbesondere für Waschmaschinen mit eingebautem elektronischen System

Country Status (5)

Country Link
EP (1) EP0600390B1 (de)
AT (1) ATE150811T1 (de)
DE (1) DE69309230T2 (de)
ES (1) ES2100430T3 (de)
IT (1) IT227025Y1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1001069A1 (de) * 1997-12-23 2000-05-17 Elettrotecnica Rold Srl Vorrichtung zum Fernöffnen von Türen insbesondere bei Waschmaschinen
EP1039012A1 (de) * 1999-03-22 2000-09-27 Siber B.V. Sicherheitstürverschluss-System insbesondere für Waschmaschinen mit eingebautem elektronischem System
EP1619287A1 (de) * 2004-07-13 2006-01-25 C.R.F. Società Consortile per Azioni Maschine zum Waschen und/oder Trocknen von Wäsche, mit einer elektrisch betätigbaren Verriegelungs-/Entriegelungsvorrichtung der Tür
KR100606695B1 (ko) * 1999-12-29 2006-08-01 엘지전자 주식회사 드럼세탁기의 도어 록 스위치 어셈블리
CN1316107C (zh) * 2002-07-05 2007-05-16 乐金电子(天津)电器有限公司 滚筒式洗衣机用门锁开关组合的门被锁状态下的滑座固定装置
EP1975300A1 (de) * 2007-03-26 2008-10-01 Elettrotecnica Rold Srl Sperrvorrichtung für die Tür von Waschmaschinen
US8991877B2 (en) 2004-12-16 2015-03-31 Emz-Hanauer Gmbh & Co. Kgaa Door lock for the door of a household appliance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2165554A5 (de) * 1971-12-17 1973-08-03 Feme
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2165554A5 (de) * 1971-12-17 1973-08-03 Feme
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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1001069A1 (de) * 1997-12-23 2000-05-17 Elettrotecnica Rold Srl Vorrichtung zum Fernöffnen von Türen insbesondere bei Waschmaschinen
EP1039012A1 (de) * 1999-03-22 2000-09-27 Siber B.V. Sicherheitstürverschluss-System insbesondere für Waschmaschinen mit eingebautem elektronischem System
KR100606695B1 (ko) * 1999-12-29 2006-08-01 엘지전자 주식회사 드럼세탁기의 도어 록 스위치 어셈블리
CN1316107C (zh) * 2002-07-05 2007-05-16 乐金电子(天津)电器有限公司 滚筒式洗衣机用门锁开关组合的门被锁状态下的滑座固定装置
EP1619287A1 (de) * 2004-07-13 2006-01-25 C.R.F. Società Consortile per Azioni Maschine zum Waschen und/oder Trocknen von Wäsche, mit einer elektrisch betätigbaren Verriegelungs-/Entriegelungsvorrichtung der Tür
US7585006B2 (en) 2004-07-13 2009-09-08 C.R.F. Societa Consortile Per Azioni Household appliance, namely a machine for washing and/or drying laundry, with a door block/release device that can be actuated electrically
US8991877B2 (en) 2004-12-16 2015-03-31 Emz-Hanauer Gmbh & Co. Kgaa Door lock for the door of a household appliance
EP1975300A1 (de) * 2007-03-26 2008-10-01 Elettrotecnica Rold Srl Sperrvorrichtung für die Tür von Waschmaschinen

Also Published As

Publication number Publication date
ITMI921026U1 (it) 1994-06-01
DE69309230D1 (de) 1997-04-30
ATE150811T1 (de) 1997-04-15
ITMI921026V0 (it) 1992-12-01
DE69309230T2 (de) 1998-01-02
EP0600390B1 (de) 1997-03-26
ES2100430T3 (es) 1997-06-16
IT227025Y1 (it) 1997-09-09

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