EP0007637A1 - Dispositif de verrouillage des portes d'appareils ménagers - Google Patents

Dispositif de verrouillage des portes d'appareils ménagers Download PDF

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Publication number
EP0007637A1
EP0007637A1 EP19790102685 EP79102685A EP0007637A1 EP 0007637 A1 EP0007637 A1 EP 0007637A1 EP 19790102685 EP19790102685 EP 19790102685 EP 79102685 A EP79102685 A EP 79102685A EP 0007637 A1 EP0007637 A1 EP 0007637A1
Authority
EP
European Patent Office
Prior art keywords
extension
slide
locking device
plunger
pin
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
EP19790102685
Other languages
German (de)
English (en)
Other versions
EP0007637B1 (fr
Inventor
Fritz Krasser
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen GmbH
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 Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Publication of EP0007637A1 publication Critical patent/EP0007637A1/fr
Application granted granted Critical
Publication of EP0007637B1 publication Critical patent/EP0007637B1/fr
Expired 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7051—Using a powered device [e.g., motor]
    • Y10T70/7062—Electrical type [e.g., solenoid]
    • Y10T70/7113—Projected and retracted electrically

Definitions

  • the invention relates to a locking device, in particular for washing machine doors, according to the preamble of claim 1.
  • Electrically operated locking devices that are used in particular in washing machine doors are already available. is known, for example from DE-OS 22 58 812.
  • the known locking devices have a housing for accommodating the electrical and mechanical switching parts and a plunger which can generally be displaced transversely to the longitudinal direction of the housing and which represents the actual locking member.
  • the tappet is moved with the aid of bimetal strips.
  • an electromagnet is additionally provided, which quickly moves the plunger into the locking position when excited.
  • This position is mechanically locked by an angle lever, which is moved by the force of a torsion spring when the plunger is moved and to which a pin is attached, which engages behind a retaining lug when the plunger end position is reached and engages there.
  • the plunger is pushed back into the unlocked position with the help a bimetallic strip, which pushes back the mentioned retaining lug due to its bending movement and thus unlocks the rotary lever together with the pin.
  • Semi-electronic or also fully electronic control circuits are used in washing machines of a more recent design, which operate, for example, with the aid of microprocessors.
  • the locking device for the washing machine door also receives its commands exclusively in the form of pulses, both for locking and for unlocking.
  • the invention is therefore based on the object of designing a locking device, in particular for washing machine doors, in such a way that it can only be controlled by pulses, the plunger being shifted alternately into a stable locking position or into a stable unlocking position after each pulse. This object is achieved by the features in the characterizing part of claim 1.
  • a preferred embodiment of the locking device is specified in sub-claim 2, which is characterized by a particularly simple construction and in which only a few parts are used.
  • a further preferred embodiment of the locking device is specified in subclaim 3, which compared to the embodiment according to An Say 2 has the particular advantage that it remains securely in the intended end position even with strong vibrations.
  • preferred configurations of the locking device are described which are suitable for increasing the operational reliability of the device and / or the simplicity of assembly with the simplest design.
  • FIG. 1 A housing shell 1 is shown in FIG. 1, in which all the functionally important parts are already inserted. After assembly, the housing shell 1 is closed with a cover, not shown, which is plugged onto pins formed on the housing shell and then fastened, for example, by hot upsetting the pins or even only by gluing.
  • the locking device also has a plunger 12 which is connected via a bearing rod 12b ′ to an extension 14 arranged inside the housing shell 1.
  • this has a further bearing rod 12a.
  • the plunger 12, the bearing rods 12a and 12b and the extension 14 can be pushed back and forth in the direction of a double arrow 31.
  • the extension 14 must be shorter than the inside clear width of the housing shell 1.
  • An electromagnet is also arranged in the housing shell 1 and consists of a coil body 2, an excitation winding 3, a magnetic yoke 6 and an armature 7.
  • the connection ends 4 and 4 1 of the excitation winding 3 are electrically connected to connection pins 5 and 5 '.
  • the armature 7 is mounted in the direction of a double arrow 30 in the interior of the coil body 2.
  • a mechanical switching device is arranged which, when the armature 7 is displaced, brings the plunger 12 together with the extension 14 into one or the other end position and holds it there in a stable manner.
  • the switching device has a slide 8 with a molded-on tab 13 and a compression spring 9 which is arranged between a pin 11a formed on the slide 8 and a pin 11b projecting from the extension 14.
  • the stop surface consists of two inclined surfaces 15a and 15b arranged on both sides of the pin 11b, which run in opposite directions, and of two adjoining inclined surfaces running towards the slide Surfaces 16a and 16b.
  • an extension 19 is formed on the extension 14 of the plunger 12, on or in which a contact bridge 20 is formed; In the housing 1, this contact bridge 20 is assigned two connections 21 and 21 '.
  • the signal circuit is open in the unlocked position, while it is closed in the locked position in FIG. With the help of this signal circuit, the mechanical locking or unlocking of the control can be indicated by the respective contact position. This signal circuit can then be used to detect faults in the locking device.
  • the locking device works as follows: If the plunger 12 and the extension 14 are in the position shown in FIG. 1, this corresponds to the "unlocked" position. In this case, the extension 14 rests with its left end face on the corresponding wall of the housing shell 1 and is held in this position by the compression spring 9 in that the pin 11b of the extension 14 is offset somewhat to the left relative to the longitudinal axis 17 in FIG , while the pin 11a on the slide 8, against which the other end of the compression spring 9 is supported, lies exactly on the longitudinal axis 17 of the housing.
  • the spring 9 When the excitation winding is switched off after the excitation pulse has ended, the spring 9 then pushes the slide 8 and thus also the armature 7 downward until the armature 7 abuts against the lower stop 10 in FIG. Since the pin 11b has now been moved so far to the right as a result of the displacement of the extension 14 that it lies to the right of the housing longitudinal axis 17 in FIG. 1, the spring 9 presses the extension 14 into the position shown in FIG the right end face of the extension bears against the corresponding housing inner wall. The plunger 12 and the extension 14 are then in a stable position.
  • the pin 11a of the slide 8 is advantageously arranged on the longitudinal axis 17 of the housing, which is also the axis of the slide 8.
  • the pin 11b on the extension 14 must lie next to the longitudinal axis 17, the distance between the center of the pin 11b and the longitudinal axis 17 preferably being smaller than the displacement path of the extension 14.
  • a so-called leg spring is advantageously used as the compression spring 9. Springs of this type are generally known and are particularly suitable for assembly due to their simple structure.
  • the slide 8 and the flag 13 can advantageously be made in one piece from plastic. This then creates a compact assembly unit that can be easily inserted into the open housing shell 1.
  • the switching part 22 has on the side facing the extension 14 'a fork-like incision 24 which partially engages around the pin 11b' projecting from the extension 14 '.
  • a stop surface oriented towards the slide 8 ' is formed in the form of an inverted W which is symmetrical to the bearing pin 23 on the changeover part 22 and in particular the inclined surfaces 15a', 15b ', 16a "and 16b 'which, in the first embodiment, correspond to the corresponding surfaces 15a, 15b, 16a and 16b of the stop surface formed on the extension 14.
  • an extension 22a is formed on the upper side of the switching part 22.
  • the operation of the second embodiment is basically the same as that of the first embodiment.
  • the armature 7 is drawn into the magnetic field and then abuts with its upper end face against the slide 8 ′ and moves it upward against the force of the S- shaped compression spring 9 ′.
  • Characterized the flag 13 ' which is also made of compression-resistant but elastic material, against the inclined surface 15a' of the stop surface of the um-. switching part 22 is deflected by this and abuts against the steeper, sloping surface 16a 'on the switching part 22.
  • the switching part is pivoted clockwise and takes the pin 11b' via its fork-like incision 24. of the extension 14'mit, so that the extension 14 'and the plunger 12' connected to it are moved to the right.
  • This state is shown in Fig.6.
  • the spring 9 'then pushes the slide 8' and thus the armature 7 downwards until it abuts the stop (not shown) at the lower end of the housing.
  • an extension 19 ' is formed on the extension 14', on or in which the contact bridge 20 'is accommodated.
  • Connections 21 and 21 ' are again assigned to this contact bridge as in the first embodiment, so that the corresponding position of the locking device is indicated by the respective contact position of the signal bridge 20' with respect to the contact connections 21 and 21 '.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Electromagnets (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Push-Button Switches (AREA)
  • Lock And Its Accessories (AREA)
EP19790102685 1978-08-02 1979-07-27 Dispositif de verrouillage des portes d'appareils ménagers Expired EP0007637B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782833860 DE2833860A1 (de) 1978-08-02 1978-08-02 Bistabile verriegelungsvorrichtung fuer waschmaschinentueren
DE2833860 1978-08-02

Publications (2)

Publication Number Publication Date
EP0007637A1 true EP0007637A1 (fr) 1980-02-06
EP0007637B1 EP0007637B1 (fr) 1981-09-23

Family

ID=6046021

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19790102685 Expired EP0007637B1 (fr) 1978-08-02 1979-07-27 Dispositif de verrouillage des portes d'appareils ménagers

Country Status (4)

Country Link
US (1) US4314217A (fr)
EP (1) EP0007637B1 (fr)
JP (1) JPS5916629B2 (fr)
DE (2) DE2833860A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487390A1 (fr) * 1980-07-24 1982-01-29 Zanussi Grandi Impianti Spa Dispositif de securite a double electro-aimant pour l'ouverture de la porte d'une machine a laver ou analogue, notamment du type industriel
EP0359728A2 (fr) * 1988-09-16 1990-03-21 Aktiebolaget Electrolux Dispositif de verrouillage pour porte de machine à laver, essoreuse ou similaire
EP0483697A1 (fr) * 1990-11-02 1992-05-06 YMOS AKTIENGESELLSCHAFT Industrieprodukte Verrouillage magnétique

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6126517U (ja) * 1984-07-23 1986-02-17 株式会社 富士薬品 配置薬箱
EP0392200B1 (fr) * 1989-04-13 1994-08-24 Ellenberger & Poensgen GmbH Dispositif de verrouillage à sécurité pour une porte d'appareil électrique
DE29612424U1 (de) * 1996-07-17 1996-09-12 Fließ, Fernando, Dipl.-Ing., 15366 Neuenhagen Elektrisch betriebener Sicherheitsverschluß mit zusätzlichem Betätigungsantrieb für Türen und Fenster
US5879036A (en) * 1996-09-19 1999-03-09 Moline; Steven S. Door interlock for an appliance such as a washer
US7900979B2 (en) * 2003-06-27 2011-03-08 Illinois Tool Works, Inc. Low power consumption lock for appliance latch
EP1740752B1 (fr) 2004-04-27 2013-03-27 Marquardt GmbH Verrou pour appareil menager
DE102004060607B3 (de) * 2004-12-16 2006-03-23 Emz-Hanauer Gmbh & Co. Kgaa Türverriegelung für eine Tür eines Haushaltsgeräts
ITTO20050333A1 (it) * 2005-05-17 2006-11-18 Itw Ind Components Srl Dispositivo bloccaporta per un elettrodomestico, in particolare un forno pirolitico
US7858307B2 (en) * 2005-08-09 2010-12-28 Maxwell Sensors, Inc. Light transmitted assay beads
DE102006047715A1 (de) * 2006-10-09 2008-04-10 Dometic Gmbh Schließvorrichtung zum Verriegeln des Innenraums eines Gerätes und Gerät mit Schließvorrichtung
ITTO20070476A1 (it) * 2007-06-29 2008-12-30 Itw Metalflex Druzba Za Proizv Dispositivo elettromagnetico di bloccaggio per una porta di un elettrodomestico, in particolare un oblo' di una lavatrice
DE102013019938A1 (de) * 2013-10-14 2015-04-16 Kiekert Ag Verriegelungseinheit für ein Kraftfahrzeug
EP3093416B1 (fr) * 2015-05-13 2019-07-03 dormakaba Deutschland GmbH Serrure

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1170822B (de) * 1963-06-06 1964-05-21 Neff Werke Tuerschloss mit elektromagnetischer Sicherungseinrichtung
CH385779A (de) * 1961-07-28 1964-12-31 Schulthess & Co Ag Maschf Waschautomat mit Programmsteuerung
DE1910239A1 (de) * 1969-02-28 1970-09-10 Bbc Brown Boveri & Cie Elektromagnetische Sperre,insbesondere fuer Waschautomaten oder dergleichen Maschinen
DE1585858A1 (de) * 1966-01-17 1971-06-16 Philips Nv Sicherheitsvorrichtung fuer eine Wasch- und Zentrifugier-Geschirrspuelmaschine od.dgl.
DE2124895A1 (de) * 1971-05-14 1972-11-23 Siemens-Electrogeräte GmbH, 1000 Berlin u. 8000 München Zum Schleudern dienende und von der Frontseite beschickbare Trommelwaschmaschine
DE2257587A1 (de) * 1971-11-26 1973-05-30 Onofrio Rocchitelli Einrichtung zur verriegelung und verzoegerten freigabe des verschlusses von tueren oder abdeckungen von maschinen
DE2258812A1 (de) * 1972-12-01 1974-06-12 Ellenberger & Poensgen Verriegelungsvorrichtung fuer waschmaschinentueren
DE2303226A1 (de) * 1973-01-24 1974-08-01 Kiekert Soehne Arn Verschluss fuer haushaltsmaschinendeckel
DE1953983B2 (de) * 1969-10-27 1976-04-08 Ellenberger & Poensgen Gmbh, 8503 Altdorf Verriegelungsvorrichtung fuer waschmaschinentueren
DE2117150B2 (de) * 1971-04-08 1977-12-15 Ako-Werke Gmbh & Co, 7988 Wangen Elektrothermischer verriegelungsschalter fuer waschmaschinen, geschirrspuelmaschinen o.dgl.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2830149A (en) * 1956-09-04 1958-04-08 Joseph D Winans Over-center relay switch
US3728651A (en) * 1971-08-05 1973-04-17 Amf Inc Bistable relay
US3893723A (en) * 1974-01-31 1975-07-08 Esdras Boule Electromagnetic door lock
US4003010A (en) * 1975-12-02 1977-01-11 The Singer Company Latch relay
US4142167A (en) * 1977-10-06 1979-02-27 Keeler Corporation Solenoid operated, oppositely rotated actuator

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH385779A (de) * 1961-07-28 1964-12-31 Schulthess & Co Ag Maschf Waschautomat mit Programmsteuerung
DE1170822B (de) * 1963-06-06 1964-05-21 Neff Werke Tuerschloss mit elektromagnetischer Sicherungseinrichtung
DE1585858A1 (de) * 1966-01-17 1971-06-16 Philips Nv Sicherheitsvorrichtung fuer eine Wasch- und Zentrifugier-Geschirrspuelmaschine od.dgl.
DE1910239A1 (de) * 1969-02-28 1970-09-10 Bbc Brown Boveri & Cie Elektromagnetische Sperre,insbesondere fuer Waschautomaten oder dergleichen Maschinen
DE1953983B2 (de) * 1969-10-27 1976-04-08 Ellenberger & Poensgen Gmbh, 8503 Altdorf Verriegelungsvorrichtung fuer waschmaschinentueren
DE2117150B2 (de) * 1971-04-08 1977-12-15 Ako-Werke Gmbh & Co, 7988 Wangen Elektrothermischer verriegelungsschalter fuer waschmaschinen, geschirrspuelmaschinen o.dgl.
DE2124895A1 (de) * 1971-05-14 1972-11-23 Siemens-Electrogeräte GmbH, 1000 Berlin u. 8000 München Zum Schleudern dienende und von der Frontseite beschickbare Trommelwaschmaschine
DE2257587A1 (de) * 1971-11-26 1973-05-30 Onofrio Rocchitelli Einrichtung zur verriegelung und verzoegerten freigabe des verschlusses von tueren oder abdeckungen von maschinen
DE2258812A1 (de) * 1972-12-01 1974-06-12 Ellenberger & Poensgen Verriegelungsvorrichtung fuer waschmaschinentueren
DE2303226A1 (de) * 1973-01-24 1974-08-01 Kiekert Soehne Arn Verschluss fuer haushaltsmaschinendeckel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2487390A1 (fr) * 1980-07-24 1982-01-29 Zanussi Grandi Impianti Spa Dispositif de securite a double electro-aimant pour l'ouverture de la porte d'une machine a laver ou analogue, notamment du type industriel
EP0359728A2 (fr) * 1988-09-16 1990-03-21 Aktiebolaget Electrolux Dispositif de verrouillage pour porte de machine à laver, essoreuse ou similaire
EP0359728A3 (en) * 1988-09-16 1990-08-08 Aktiebolaget Electrolux Locking device for a door of a washing machine, a spin dryer or the like
EP0483697A1 (fr) * 1990-11-02 1992-05-06 YMOS AKTIENGESELLSCHAFT Industrieprodukte Verrouillage magnétique

Also Published As

Publication number Publication date
DE2960894D1 (en) 1981-12-10
EP0007637B1 (fr) 1981-09-23
DE2833860A1 (de) 1980-02-21
JPS5916629B2 (ja) 1984-04-17
US4314217A (en) 1982-02-02
JPS5552476A (en) 1980-04-16

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