EP0172331A1 - Door-locking device for instant locking and delayed unlocking with water level supervision - Google Patents

Door-locking device for instant locking and delayed unlocking with water level supervision Download PDF

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Publication number
EP0172331A1
EP0172331A1 EP85106984A EP85106984A EP0172331A1 EP 0172331 A1 EP0172331 A1 EP 0172331A1 EP 85106984 A EP85106984 A EP 85106984A EP 85106984 A EP85106984 A EP 85106984A EP 0172331 A1 EP0172331 A1 EP 0172331A1
Authority
EP
European Patent Office
Prior art keywords
locking
contact
armature lever
door
plunger
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
EP85106984A
Other languages
German (de)
French (fr)
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EP0172331B1 (en
Inventor
Konrad Heydner
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
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Ellenberger and Poensgen GmbH
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Publication date
Application filed by Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Publication of EP0172331A1 publication Critical patent/EP0172331A1/en
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Publication of EP0172331B1 publication Critical patent/EP0172331B1/en
Expired 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
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S292/00—Closure fasteners
    • Y10S292/69—Washing machine or stove closure latch
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S70/00—Locks
    • Y10S70/48—Fluid pressure lock
    • 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
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/1014—Operating means
    • Y10T292/1021—Motor
    • 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]
    • 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]

Definitions

  • the invention relates to a door locking device for electrical appliances, in particular for washing machines, of the type mentioned in the preamble of claim 1.
  • a door locking device for electrical appliances in particular for washing machines, of the type mentioned in the preamble of claim 1.
  • Such devices are known, inter alia, from DE-32 14 436. They are bimetallic devices with the property of locking the door of an electrical device with a delay as well as unlocking it with a delay. Simultaneous water level monitoring when using these conventional door locking devices, for example in washing machines, is not provided.
  • the invention has for its object to provide a door locking device for electrical appliances, especially for washing machines, which ensures immediate locking and a delayed unlocking of the appliance door with simultaneous water level monitoring. This object is achieved in accordance with the characterizing features of claim 1.
  • a contact spring engages in the latching recess of the locking slide lying parallel to its passage openings, which together with a fixed contact piece lying opposite in parallel engages a signal contact forms.
  • this contact spring disengages from the latching recess and closes the signal contact due to its spatial displacement.
  • a locking plunger is mounted which, through the movement of the magnet armature lever, engages through a passage opening in the locking slide to prevent movement. This ensures instantaneous locking of the door locking device according to the invention.
  • the second contact arm of the magnet armature lever - hereinafter referred to as the main contact arm - is a bearing for a connecting piece which completely fills the through opening of a pressure chamber and is thereby guided in a longitudinally displaceable manner and is fastened to a membrane which divides the pressure chamber volume.
  • the diaphragm-side end of the connecting piece increasingly acts on a contact spring against its spring force.
  • the contact spring forms the main contact point, which can thus be closed by the locking movement and consequently also switches on the electrical device virtually without delay.
  • the membrane attached to the opposite side of the connecting piece divides the pressure chamber, which is connected to a pressure compensation chamber via a passage channel.
  • the pressure compensation chamber has a connection channel leading to the outside, as a result of which it can be filled with water, for example. Due to this design, the door locking device ensures a delayed unlocking with water level monitoring. If the electrical device is switched off, the locking relay pulls the Magnet armature lever no longer on. The restoring force of the main contact spring causes the unlocking movement, which is, however, delayed by the counterpressure on the membrane which forms in the pressure chamber. The delay time can be determined using the special design of the membrane and pressure chamber system. In this way, for example, the drum outlet in a washing machine can be protected against premature access from the outside. Due to the characterizing feature of claim 1 design of the pressure chamber system, water level monitoring is also possible, for example in a washing machine, spin dryer, dishwasher or the like.
  • the lever-side space of the pressure chamber is filled with water via the passage channel, the pressure compensation chamber and the connection channel. Since a liquid in a pressure chamber develops a significantly higher back pressure than a gas, the door locking device can only be unlocked very slowly or not at all. As a result, the door of the electrical device can only be opened when the water level has fallen below a certain level and the pressure chamber has been emptied via the passage channel, pressure compensation chamber and outlet channel. The emptying time can be determined via the length and cross-sectional area of the passage. This configuration of the door locking device prevents water from leaking out, for example, from washing machines by prematurely opening the appliance door.
  • the main contact arm of the armature lever during the locking process increasingly acting pressure spring supports the restoring force of the contact spring. Due to the adjustment possibility of this compression spring described in the characterizing feature of claim 7, a simple adjustment of the restoring force and thus the desired delay time for the unlocking is possible. Thus, the door locking device can be easily and quickly adapted to the conditions required for the practical use of the electrical device.
  • claim 10 enable the door locking device to be used both for doors with "left-hand” and doors with “right-closing” door locking hooks.
  • the door locking device for electrical appliances contains a locking slide 3, which is mounted in a longitudinally displaceable manner in a guide groove 1 in the housing 2 and is provided with a plurality of passage openings and a latching recess 4.
  • a through opening is penetrated as a closing opening 5 according to FIG. 2 by the door locking hook 6, which blocks the appliance door by engaging behind the housing wall 2.
  • the locking plunger 8 passes through one of the two locking openings 9 to prevent movement.
  • an extension of the guide groove 1 forming a free arm 1 ' is provided behind the locking slide 3 in the open position of the device.
  • the guide groove 10 for the locking plunger 8 has an extension 11.
  • the L-shaped free end 12 of the contact spring 13 engages in the latching recess 4 a.
  • the signal contact 1. 5 Due to the locking movement of the locking slide 3, the contact spring free end 12 disengages from the latching recess 4 and is thereby acted upon in the direction of the fixed contact piece 14 against the restoring force of the contact spring 13, as a result of which the signal contact 15 can be closed (FIG. 2).
  • This signal contact controls a locking relay 16 located to the side of locking slide 3, which is composed of magnetic yoke 17, coil 18, core 19 and double-armature armature lever 20.
  • This magnet armature lever 20 is located laterally next to the pole face 21 of the magnet and consists of a locking arm 22 and a main contact arm 23.
  • the free end of the locking arm 22 passes through the locking plunger 8, which is displaced along the guide groove 10 by pivoting movements of the magnet armature lever 20 during locking.
  • the free end of the main contact arm 23 is a bearing for the connecting piece 24, which passes through the passage opening 25 of the pressure chamber cover 26 and is thereby longitudinally displaceable.
  • the end of the connecting piece 24 lying in the pressure chamber is fastened via stiffening plates 27 to a membrane 28 which divides the pressure chamber 29 into two volumes.
  • This pressure chamber is connected to the washing drum space via a passage channel 30, a pressure compensation chamber 31 and a connection channel 32, for example in a washing machine. As explained in the description, this makes it possible to monitor the water level in electrical appliances in which water is used.
  • the end of the connecting piece 24 on the diaphragm side increasingly applies a contact spring 33 during the locking, which together with a fixed contact piece 34 lying opposite in parallel, the main contact point 35 forms.
  • the contact spring 33 In the locked position (FIG. 2), the contact spring 33 is spatially displaced by the action and the main contact point 35 is closed. The connected electrical device is then put into operation.
  • the magnet armature lever 20 is rotatably mounted on the housing part 36, which comprises the magnet coil 18 on the side opposite the locking plunger 8. Together with the obtuse angle 37, the locking 22 and the main contact arm 23 form each other, this arrangement provides sufficient working paths for locking plunger 8 and connecting piece 24, as well as a clean magnetic connection between the magnet yoke 17, core 19 and magnet armature lever 20 (FIG. 2).
  • the main contact arm 23 of the magnet armature lever 20 is acted upon on the side opposite the locking relay 16 by a compression spring 38 which is placed on an adjusting screw 39 inserted in a housing part 40.

Abstract

Die Türverriegelungsvorrichtung für Elektrogeräte, insbesondere für Waschmaschinen enthält einen längsverschiebbar gelagerten Verriegelungsschieber 3, der mit einer Schließöffnung 5 für einen Türverriegelungshaken 6, mit zwei von einem Verriegelungsstößel 8 durchgreifbaren Verriegelungsöffnungen 9 und einer Verrastausnehmung 4 versehen ist. In Offenstellung der Türverriegelungsvorrichtung greift in diese Verrastausnehmung 4 das Freiende einer Kontaktfeder 13 ein, die zusammen mit einem parallel gegenüberliegenden Festkontaktstück 14 einen Signalkontakt 15 bildet. Bei der Verriegelungsbewegung wird der Signalkontakt 15 geschlossen, der wiederum ein Verriegelungsrelais 16 steuert, das aus Magnetjoch 17, Spule 18, Kern 19 und einem doppelarmigen Magnetankerhebel 20 zusammengesetzt ist. Das Freiende des Verriegelungsarmes 22 des Magnetankerhebels 20 ist Lager für den Verriegelungsstößel 8, der durch die Schwenkbewegung des Magnetankerhebels 20 bei der Verriegelung verschoben wird. Das Freiende des Hauptkontaktarmes des Magnetankerhebels 20 ist Lager für ein Verbindungsstück 24, das an einer eine Druckkammer 29 teilenden Membran 28 befestigt ist. Die Druckkammer 29 ist über einen Durchtrittskanal 30 mit einer Druckausgleichskammer 31 verbunden, die wiederum über einen Anschlußkanal 32 mit einem Medium füllbar ist. Das membranabseitige Ende des Verbindungsstückes 24 beaufschlagt bei der Verriegelungsbewegung zunehmend eine Kontaktfeder 33, die zusammen mit einem Festkontaktstück 34 den Hauptkontakt zur endgültigen Inbetriebnahme des Gerätes bildet.The door locking device for electrical appliances, in particular for washing machines, contains a longitudinally displaceably mounted locking slide 3, which is provided with a closing opening 5 for a door locking hook 6, with two locking openings 9 through which a locking plunger 8 can pass and a latching recess 4. In the open position of the door locking device, the free end of a contact spring 13 engages in this latching recess 4, which forms a signal contact 15 together with a parallel fixed contact piece 14. During the locking movement, the signal contact 15 is closed, which in turn controls a locking relay 16, which is composed of magnetic yoke 17, coil 18, core 19 and a double-armature armature lever 20. The free end of the locking arm 22 of the magnet armature lever 20 is a bearing for the locking plunger 8, which is displaced by the pivoting movement of the magnet armature lever 20 when it is locked. The free end of the main contact arm of the magnet armature lever 20 is a bearing for a connecting piece 24 which is fastened to a membrane 28 which divides a pressure chamber 29. The pressure chamber 29 is connected via a passage channel 30 to a pressure compensation chamber 31, which in turn can be filled with a medium via a connection channel 32. The end of the connecting piece 24 on the diaphragm side increasingly applies a contact spring 33 during the locking movement, which together with a fixed contact piece 34 forms the main contact for the final commissioning of the device.

Description

Die Erfindung betrifft eine Türverriegelungsvorrichtung für Elektrogeräte, insbesondere für Waschmaschinen, der im Oberbegriff des Anspruches 1 genannten Art. Solche Vorrichtungen sind unter anderem aus DE-32 14 436 bekannt. Sie sind bimetallgesteuerte Geräte mit der Eigenschaft, die Tür eines Elektrogerätes sowohl verzögert zu verriegeln, als auch verzögert zu entriegeln. Eine gleichzeitige Wasserstandsüberwachung beim Einsatz dieser herkömmlichen Türverriegelungsvorrichtungen beispielsweise in Waschmaschinen ist dabei nicht vorgesehen.The invention relates to a door locking device for electrical appliances, in particular for washing machines, of the type mentioned in the preamble of claim 1. Such devices are known, inter alia, from DE-32 14 436. They are bimetallic devices with the property of locking the door of an electrical device with a delay as well as unlocking it with a delay. Simultaneous water level monitoring when using these conventional door locking devices, for example in washing machines, is not provided.

Der Erfindung liegt die Aufgabe zugrunde, eine Türverriegelungsvorrichtung für Elektrogeräte, insbesondere für Waschmaschinen, zu schaffen, die eine sofortige Verriegelung und eine verzögerte Entriegelung der Gerätetür mit gleichzeitiger Wasserstandsüberwachung gewährleistet. Diese Aufgabe wird gemäß den kennzeichnenden Merkmalen des Anspruches 1 gelöst.The invention has for its object to provide a door locking device for electrical appliances, especially for washing machines, which ensures immediate locking and a delayed unlocking of the appliance door with simultaneous water level monitoring. This object is achieved in accordance with the characterizing features of claim 1.

In Offenstellung der Verriegelungsvorrichtung greift in die parallel zu seinen Durchtrittsöffnungen liegende Verrastausnehmung des Verriegelungsschiebers eine Kontaktfeder ein, die zusammen mit einem parallel gegenüberliegenden Festkontaktstück einen Signalkontakt bildet. Bei der durch den Türverriegelungshaken gesteuerten Verriegelungsbewegung gelangt diese Kontaktfeder außer Eingriff mit der Verrastausnehmung und schließt durch ihre räumliche Verschiebung den Signalkontakt. Dadurch wird die Spule eines elektromagnetischen Verriegelungsrelais direkt oder über eine Programmsteuerung von Strom durchflossen, wodurch der Verriegelungsarm des Magnetankerhebels angezogen wird. Am Freiende des Verriegelungsarmes ist ein Verriegelungsstößel gelagert, der durch die Bewegung des Magnetankerhebels eine Durchtrittsöffnung im Verriegelungsschieber bewegungssperrend durchgreift. Dadurch ist die verzögerungsfreie Verriegelung der erfindungsgemäßen Türverriegelungsvorrichtung gewährleistet.In the open position of the locking device, a contact spring engages in the latching recess of the locking slide lying parallel to its passage openings, which together with a fixed contact piece lying opposite in parallel engages a signal contact forms. When the locking movement is controlled by the door locking hook, this contact spring disengages from the latching recess and closes the signal contact due to its spatial displacement. Thus, the coil of an electromagnetic V erriegelungsrelais directly or flowed through by a program control of electricity, is tightened whereby the locking arm of the magnet armature lever. At the free end of the locking arm, a locking plunger is mounted which, through the movement of the magnet armature lever, engages through a passage opening in the locking slide to prevent movement. This ensures instantaneous locking of the door locking device according to the invention.

Der zweite Kontaktarm des Magnetankerhebels - im folgenden Hauptkontaktarm genannt - ist Lager für ein die Durchtrittsöffnung einer Druckkammer vollständig ausfüllendes, dadurch geführt längsverschiebbares Verbindungsstück, das an einer das Druckkammervolumen teilenden Membran befestigt ist. Bei der Verriegelung beaufschlagt das membranabseitige Ende des Verbindungsstückes zunehmend eine Kontaktfeder gegen deren Federkraft. Die Kontaktfeder bildet zusammen mit einem Festkontaktstück die Hauptkontaktstelle, die durch die Verriegelungsbewegung damit schließbar ist und das Elektrogerät demzufolge ebenfalls quasi verzögerungsfrei einschaltet. Die an der gegenüberliegenden Seite des Verbindungsstückes befestigte Membran teilt die Druckkammer, die über einen Durchtrittskanal mit einer Druckausgleichskammer verbunden ist. Die Druckausgleichskammer weist einen nach außen führenden Anschlußkanal auf, wodurch sie z.B. mit Wasser füllbar ist. Durch diese Bauweise gewährleistet die Türverriegelungsvorrichtung eine verzögerte Entriegelung mit Wasserstandsüberwachung. Wird das Elektrogerät nämlich ausgeschaltet, zieht das Verriegelungsrelais den Magnetankerhebel nicht mehr an. Durch die rückstellende Kraft der Hauptkontaktfeder wird die Entriegelungsbewegung hervorgerufen, die allerdings durch den sich in der Druckkammer ausbildenden Gegendruck auf die Membran verzögert ist. Die Verzögerungszeit ist über die spezielle Bauweise von Membran und Druckkammersystem bestimmbar. Dadurch kann beispielsweise der Trommelauslauf bei einer Waschmaschine gegen vorzeitigen Zugriff von außen geschützt werden. Durch die dem kennzeichnenden Merkmal des Anspruches 1 gemäße Ausführung des Druckkammersystems ist weiterhin eine Wasserstandsüberwachung beispielsweise bei einer Waschmaschine, Wäscheschleuder, Spülmaschine od.dgl. möglich. Überschreitet der Wasserstand in einem solchen Gerät ein bestimmtes Niveau, ist der hebelabseitige Raum der Druckkammer über den Durchtrittskanal, die Druckausgleichskammer und den Anschlußkanal mit Wasser gefüllt. Da eine Flüssigkeit in einer Druckkammer einen wesentlich höheren Gegendruck als ein Gas entwickelt, kann die Türverriegelungsvorrichtung nur noch sehr langsam oder überhaupt nicht mehr entriegelt werden. Dadurch kann die Tür des Elektrogerätes erst geöffnet werden, wenn der Wasserstand ein bestimmtes Niveau unterschritten und sich die Druckkammer über Durchtrittskanal, Druckausgleichskammer und Austrittskanal entleert hat. Die Entleerzeit ist über Länge und Querschnittsfläche des Durchtrittskanals bestimmbar. Durch diese Ausgestaltung der Türverriegelungsvorrichtung wird es verhindert, daß Wasser beispielsweise aus Waschmaschinen durch vorzeitiges Öffnen der Gerätetür ausläuft.The second contact arm of the magnet armature lever - hereinafter referred to as the main contact arm - is a bearing for a connecting piece which completely fills the through opening of a pressure chamber and is thereby guided in a longitudinally displaceable manner and is fastened to a membrane which divides the pressure chamber volume. When locking, the diaphragm-side end of the connecting piece increasingly acts on a contact spring against its spring force. Together with a fixed contact piece, the contact spring forms the main contact point, which can thus be closed by the locking movement and consequently also switches on the electrical device virtually without delay. The membrane attached to the opposite side of the connecting piece divides the pressure chamber, which is connected to a pressure compensation chamber via a passage channel. The pressure compensation chamber has a connection channel leading to the outside, as a result of which it can be filled with water, for example. Due to this design, the door locking device ensures a delayed unlocking with water level monitoring. If the electrical device is switched off, the locking relay pulls the Magnet armature lever no longer on. The restoring force of the main contact spring causes the unlocking movement, which is, however, delayed by the counterpressure on the membrane which forms in the pressure chamber. The delay time can be determined using the special design of the membrane and pressure chamber system. In this way, for example, the drum outlet in a washing machine can be protected against premature access from the outside. Due to the characterizing feature of claim 1 design of the pressure chamber system, water level monitoring is also possible, for example in a washing machine, spin dryer, dishwasher or the like. possible. If the water level in such a device exceeds a certain level, the lever-side space of the pressure chamber is filled with water via the passage channel, the pressure compensation chamber and the connection channel. Since a liquid in a pressure chamber develops a significantly higher back pressure than a gas, the door locking device can only be unlocked very slowly or not at all. As a result, the door of the electrical device can only be opened when the water level has fallen below a certain level and the pressure chamber has been emptied via the passage channel, pressure compensation chamber and outlet channel. The emptying time can be determined via the length and cross-sectional area of the passage. This configuration of the door locking device prevents water from leaking out, for example, from washing machines by prematurely opening the appliance door.

Durch die kennzeichnenden Merkmale der Ansprüche 2 und 3 wird ein geringer Abstand des Magnetankerhebels vom Magnetkern bei gleichzeitig ausreichenden Hebelwegen für den Verriegelungsstößel und das Verbindungsstück erreicht, wodurch eine sichere und schnelle Verriegelung gewährleistet ist.Due to the characterizing features of claims 2 and 3, a small distance of the magnet armature lever from the magnet core is achieved with sufficient lever paths for the locking plunger and the connecting piece, thereby ensuring a secure and quick locking.

Trotz der nicht wenigen Bauelemente, die für die Vorrichtung benötigt werden, ist durch die kennzeichnenden Merkmale der Ansprüche 4 und 5 eine schmale, flache Bauweise möglich und ein funktionssicherer Aufbau gewährleistet.Despite the not a few components that are required for the device, the characterizing features of claims 4 and 5 make a narrow, flat design possible and ensure a functionally reliable structure.

Die gemäß dem kennzeichnenden Merkmal des Anspruches 6 den Hauptkontaktarm des Magnetankerhebels beim Verriegelungsvorgang zunehmend beaufschlagende Druckfeder unterstützt die Rückstellkraft der Kontaktfeder. Durch die im kennzeichnenden Merkmal des Anspruches 7 beschriebene Justiermöglichkeit dieser Druckfeder ist ein einfaches Anpassen der Rückstellkraft und damit der gewünschten Verzögerungszeit für die Entriegelung möglich. Damit kann die Türverriegelungsvorrichtung einfach und schnell den erforderlichen Bedingungen für den praktischen Einsatz des Elektrogerätes angepaßt werden.According to the characterizing feature of claim 6, the main contact arm of the armature lever during the locking process increasingly acting pressure spring supports the restoring force of the contact spring. Due to the adjustment possibility of this compression spring described in the characterizing feature of claim 7, a simple adjustment of the restoring force and thus the desired delay time for the unlocking is possible. Thus, the door locking device can be easily and quickly adapted to the conditions required for the practical use of the electrical device.

Durch die im Kennzeichnungsmerkmal des Anspruches 8 beschriebenen Versteifungsplatten ist eine sichere Befestigung der Membran am Verbindungsstück gewährleistet. Außerdem ist die Membran dadurch in sich stabiler und ihre Beschädigung durch Reißen oder Platzen wird vermieden.By the stiffening plates described in the characterizing feature of claim 8, a secure attachment of the membrane to the connector is guaranteed. It also makes the membrane more stable and prevents it from being damaged by tearing or bursting.

Durch das kennzeichnende Merkmal des Anspruches 9 ist ein gewaltsames Öffnen der Gerätetür weitgehend ausgeschlossen, da sich der Verriegelungsstößel beidseitig des Verriegelungsschiebers in den jeweiligen Gehäuseteilen abstützen kann.Due to the characterizing feature of claim 9, a violent opening of the appliance door is largely ruled out, since the locking plunger can be supported on both sides of the locking slide in the respective housing parts.

Die kennzeichnenden Merkmale des Anspruches 10 ermöglichen einen Einsatz der Türverriegelungsvorrichtung sowohl für Türen mit "links-" als auch Türen mit "rechts-schließenden" Türverriegelungshaken.The characterizing features of claim 10 enable the door locking device to be used both for doors with "left-hand" and doors with "right-closing" door locking hooks.

Durch die kennzeichnenden Merkmale der Ansprüche 11 und 12 ist eine besonders leichtgängige Betätigung des Verriegelungsschiebers durch den Türverriegelungshaken möglich, wobei gleichzeitig ein lagegenaues Verrasten der Kontaktfeder in Offenstellung gewährleistet ist.Due to the characterizing features of claims 11 and 12, a particularly smooth actuation of the locking slide by the door locking hook is possible, while at the same time a precise locking of the contact spring is ensured in the open position.

Eine erfindungsgemäß ausgestaltete Türverriegelungsvorrichtung ist im folgenden an Hand der Figuren in einem Ausführungsbeispiel näher erläutert. Es zeigen:

  • Fig. 1 eine Draufsicht auf eine erfindungsgemäße Türverriegelungsvorrichtung in Offenstellung (in teilweis geschnittener Darstellung),
  • Fig. 2 eine Draufsicht analog Fig. 1 in Verriegelungsstellung,
A door locking device designed according to the invention is explained in more detail below with reference to the figures in an exemplary embodiment. Show it:
  • 1 is a plan view of a door locking device according to the invention in the open position (in a partially sectioned representation),
  • 2 is a plan view analogous to FIG. 1 in the locked position,

Die Türverriegelungsvorrichtung für Elektrogeräte, insbesondere für Waschmaschinen enthält einen in einer Führungsnut 1 im Gehäuse 2 längsverschiebbar gelagerten Verriegelungsschieber 3, der mit mehreren Durchtrittsöffnungen und einer Verrastausnehmung 4 versehen ist. Eine Durchtrittsöffnung wird als Schließöffnung 5 gemäß Fig. 2 vom Türverriegelungshaken 6 durchgriffen, dieser blockiert die Gerätetür, indem er die Gehäusewandung 2 hintergreift. Je nach Verriegelungsrichtung 7 des Türverriegelungshakens 6 durchsetzt der Verriegelungsstößel 8 eine der beiden Verriegelungsöffnungen 9 bewegungssperrend. Für einen Einsatz der Türverriegelungsvorrichtung sowohl für "links-" wie "rechtsschließende" Türverriegelungshaken analog Pfeilrichtung 7 ist in Offenstellung der Vorrichtung hinter dem Verriegelungsschieber 3 eine einen Freiarm 1' bildende Verlängerung der Führungsnut 1 vorgesehen. Für eine sichere Blockierung der Verriegelungsvorrichtung weist die Führungsnut 10 für den Verriegelungsstößel 8 eine Verlängerung 11 auf. In Offenstellung (Fig. 1) der Türverriegelungsvorrichtung greift in die Verrastausnehmung 4 das L-förmige Freiende 12 der Kontaktfeder 13 ein. Diese bildet zusammen mit dem parallel gegenüberliegenden Festkontaktstück 14 den Signalkontakt 15. Durch die Verriegelungsbewegung des Verriegelungsschiebers 3 gelangt das Kontaktfederfreiende 12 außer Eingriff mit der Verrastausnehmung 4, wird dadurch in Richtung des Festkontaktstückes 14 gegen die Rückstellkraft der Kontaktfeder 13 beaufschlagt, wodurch der Signalkontakt 15 schließbar ist (Fig. 2). Durch diesen Signalkontakt wird ein seitlich vom Verriegelungsschieber 3 liegendes Verriegelungsrelais 16 gesteuert, das aus Magnetjoch 17, Spule 18, Kern 19 und dem doppelarmigen Magnetankerhebel 20 zusammengesetzt ist. Dieser Magnetankerhebel 20 liegt seitlich neben der Polfläche 21 des Magneten und besteht aus einem Verriegelungsarm 22 und einem Hauptkontaktarm 23. Das Freiende des Verriegelungsarms 22 durchgreift den Verriegelungsstößel 8, der durch Schwenkbewegungen des Magnetankerhebels 20 bei der Verriegelung längs der Führungsnut 10 verschoben wird. Das Freiende des Hauptkontaktarmes 23 ist Lager für das Verbindungsstück 24, das die Durchtrittsöffnung 25 des Druckkammerdeckels 26 durchgreift und dadurch geführt längsverschiebbar ist. Das in der Druckkammer liegende Ende des Verbindungsstückes 24 ist über Versteifungsplatten 27 an einer Membran 28 befestigt, die die Druckkammer 29 in zwei Volumina teilt. Diese Druckkammer ist über einen Durchtrittskanal 30, eine Druckausgleichskammer 31 und einen Anschlußkanal 32 beispielsweise bei einer Waschmaschine mit dem Waschtrommelraum verbunden. Dadurch ist, wie in der Beschreibung erläutert, eine Wasserstandsüberwachung bei Elektrogeräten, bei denen Wasser zum Einsatz kommt, möglich.The door locking device for electrical appliances, in particular for washing machines, contains a locking slide 3, which is mounted in a longitudinally displaceable manner in a guide groove 1 in the housing 2 and is provided with a plurality of passage openings and a latching recess 4. A through opening is penetrated as a closing opening 5 according to FIG. 2 by the door locking hook 6, which blocks the appliance door by engaging behind the housing wall 2. Depending on the locking direction 7 of the door locking hook 6, the locking plunger 8 passes through one of the two locking openings 9 to prevent movement. For use of the door locking device for both "left" and "right closing" door locking hooks analogous to arrow direction 7, an extension of the guide groove 1 forming a free arm 1 'is provided behind the locking slide 3 in the open position of the device. For a secure blocking of the locking device, the guide groove 10 for the locking plunger 8 has an extension 11. In the open position (FIG. 1) of the door locking device, the L-shaped free end 12 of the contact spring 13 engages in the latching recess 4 a. This, together with the parallel opposite fixed contact piece 14 the signal contact 1. 5 Due to the locking movement of the locking slide 3, the contact spring free end 12 disengages from the latching recess 4 and is thereby acted upon in the direction of the fixed contact piece 14 against the restoring force of the contact spring 13, as a result of which the signal contact 15 can be closed (FIG. 2). This signal contact controls a locking relay 16 located to the side of locking slide 3, which is composed of magnetic yoke 17, coil 18, core 19 and double-armature armature lever 20. This magnet armature lever 20 is located laterally next to the pole face 21 of the magnet and consists of a locking arm 22 and a main contact arm 23. The free end of the locking arm 22 passes through the locking plunger 8, which is displaced along the guide groove 10 by pivoting movements of the magnet armature lever 20 during locking. The free end of the main contact arm 23 is a bearing for the connecting piece 24, which passes through the passage opening 25 of the pressure chamber cover 26 and is thereby longitudinally displaceable. The end of the connecting piece 24 lying in the pressure chamber is fastened via stiffening plates 27 to a membrane 28 which divides the pressure chamber 29 into two volumes. This pressure chamber is connected to the washing drum space via a passage channel 30, a pressure compensation chamber 31 and a connection channel 32, for example in a washing machine. As explained in the description, this makes it possible to monitor the water level in electrical appliances in which water is used.

Das membranabseitige Ende des Verbindungsstückes 24 beaufschlagt bei der Verriegelung zunehmend eine Kontaktfeder 33, die zusammen mit einem parallel gegenüberliegenden Festkontaktstück 34 die Hauptkontaktstelle 35 bildet. In Verriegelungsstellung (Fig. 2) ist die Kontaktfeder 33 durch die Beaufschlagung räumlich verschoben und die Hauptkontaktstelle 35 geschlossen. Das angeschlossene Elektrogerät ist dadurch in Betrieb genommen.The end of the connecting piece 24 on the diaphragm side increasingly applies a contact spring 33 during the locking, which together with a fixed contact piece 34 lying opposite in parallel, the main contact point 35 forms. In the locked position (FIG. 2), the contact spring 33 is spatially displaced by the action and the main contact point 35 is closed. The connected electrical device is then put into operation.

Der Magnetankerhebel 20 ist drehbar an dem Gehäuseteil 36 gelagert, das die Magnetspule 18 auf der dem Verriegelungsstößel 8 gegenüberliegenden Seite umfaßt. Zusammen mit dem stumpfen Winkel 37, den Verriegelungs-22 und Hauptkontaktarm 23 zueinander bilden, sind durch diese Anordnung sowohl genügende Arbeitswege für Verriegelungsstößel 8 und Verbindungsstück 24, als auch ein sauberer magnetischer Schluß zwischen Magnetjoch 17, Kern 19 und Magnetankerhebel 20 gegeben (Fig. 2).The magnet armature lever 20 is rotatably mounted on the housing part 36, which comprises the magnet coil 18 on the side opposite the locking plunger 8. Together with the obtuse angle 37, the locking 22 and the main contact arm 23 form each other, this arrangement provides sufficient working paths for locking plunger 8 and connecting piece 24, as well as a clean magnetic connection between the magnet yoke 17, core 19 and magnet armature lever 20 (FIG. 2).

Der Hauptkontaktarm 23 des Magnetankerhebels 20 wird auf der dem Verriegelungsrelais 16 gegenüberliegenden Seite von einer Druckfeder 38 beaufschlagt, die auf eine in einem Gehäuseteil 40 eingesetzte Justierschraube 39 aufgesetzt ist.The main contact arm 23 of the magnet armature lever 20 is acted upon on the side opposite the locking relay 16 by a compression spring 38 which is placed on an adjusting screw 39 inserted in a housing part 40.

Ellenberger & Poensgen GmbHEllenberger & Poensgen GmbH BezugszeichenlisteReference symbol list

  • 1 = Führungsnut1 = guide groove
  • 1' = Freiraum durch Verlängerung von 11 '= free space by extending 1
  • 2 = Gehäuse2 = housing
  • 3 = Verriegelungsschieber3 = locking slide
  • 4 = Verrastausnehmung4 = latching recess
  • 5 = Schließöffnung5 = closing opening
  • 6 - Türverriegelungshaken6 - Door locking hook
  • 7 = Verriegelungsrichtung7 = locking direction
  • 8 = Verriegelungsstößel8 = locking plunger
  • 9 = Verriegelungsöffnung9 = locking opening
  • 10 = Führungsnut10 = guide groove
  • 11 = Verlängerung11 = extension
  • 12 = Kontaktfederfreiende12 = contact spring free end
  • 13 = Kontaktfeder13 = contact spring
  • 14 = Festkontaktstück14 = fixed contact piece
  • 15 = Signalkontakt15 = signal contact
  • 16 = Verriegelungsrelais16 = interlocking relay
  • 17 = Magnetjoch17 = magnetic yoke
  • 18 = Spule18 = coil
  • 19 = Kern19 = core
  • 20 = Magnetankerhebel20 = magnetic armature lever
  • 21 = Polfläche21 = pole face
  • 22 = Verriegelungsarm22 = locking arm
  • 23 = Hauptkontaktarm23 = main contact arm
  • 24 = Verbindungsstück24 = connector
  • 25 = Durchtrittsöffnung25 = passage opening
  • 26 = Druckkammerdeckel26 = pressure chamber cover
  • 27 = Versteifungsplatten27 = stiffening plates
  • 28 = Membran28 = membrane
  • 29 = Druckkammer29 = pressure chamber
  • 30 = Durchtrittskanal30 = passage channel
  • 31 = Druckausgleichskammer31 = pressure compensation chamber
  • 32 = Anschlußkanal32 = connection channel
  • 33 = Kontaktfeder33 = contact spring
  • 34 = Festkontaktstück34 = fixed contact piece
  • 35 = Hauptkontaktstelle35 = main contact point
  • 36 = Gehäuseteil36 = housing part
  • 37 = Winkel37 = angle
  • 38 = Druckfeder38 = compression spring
  • 39 = Justierschraube39 = adjusting screw
  • 40 = Gehäuseteil40 = housing part

Claims (12)

1. Türverriegelungsvorrichtung für Elektrogeräte, insbesondere für Waschmaschinen, mit einem in einer Führungsnut (1) im Gehäuse (2) längsverschiebbar gelagerten Verriegelungsschieber (3) mit mehreren Durchtrittsöffnungen, - von diesen Durchtrittsöffnungen ist -- eine als Schließöffnung (5) einem mit der zu verriegelnden Tür verbundenen Türverriegelungshaken (6) zugeordnet und von diesem durchgreifbar, -- mindestens eine andere als Verriegelungsöffnung (9) in Verriegelungsstellung der Vorrichtung von einem Verriegelungsstößel (8) bewegungssperrend durchsetzt,
wobei - der Verriegelungsschieber (3) parallel zu seinen Durchtrittsöffnungen versetzt eine Verrastausnehmung (4) aufweist,
gekennzeichnet durch folgende Merkmale: 1.1 In die Verrastausnehmung (4) greift in Offenstellung der Verriegelungsvorrichtung eine einem Festkontaktstück (14) gegenüberliegende Kontaktfeder (13) ein, 1.1.1 die durch die Verriegelungsbewegung des Verriegelungsschiebers (3) außer Eingriff mit der Verrastausnehmung (4) gelangt, 1.1.2 wodurch in Verriegelungsstellung ein aus Festkontaktstück (14) und Kontaktfeder (13) gebildeter Signalkontakt (15) durch die räumliche Verschiebung der Kontaktfeder (13) schließbar ist. 1.2 Die Verriegelungsvorrichtung enthält ein vom Signalkontakt (15) steuerbares, seitlich vom Verriegelungsschieber (3) liegendes Verriegelungsrelais (16), das aus Magnetjoch (17), Spule (18), Kern (19) und einem seitlich neben der Polfläche (21) des Magneten liegenden Magnetankerhebel (20) mit einem Verriegelungsarm (22) und einem Hauptkontaktarm (23) zusammengesetzt ist. 1.2.1 Das Freiende des Verriegelungsarms (22) ist Lager für den in einer Nut (10) im Gehäuse (2) verschiebbar geführten Verriegelungsstößel (8). 1.2.2 Das Freiende des Hauptkontaktarmes (23) ist Lager für ein die Durchtrittsöffnung (25) eines Druckkammerdeckels (26) vollständig ausfüllendes, dadurch geführt längsverschiebbares Verbindungsstück (24), das an einer das Volumen der Druckkammer (29) teilenden Membran (28) befestigt ist. 1.3 Die Druckkammer (29) ist über einen Durchtrittskanal (30) mit einer Druckausgleichskammer (31) verbunden, die über einen Anschlußkanal (32) von außen mit einem Medium füllbar ist. 1.4 Das membranabseitige Ende des Verbindungsstückes (24) beaufschlagt bei der Verriegelung zunehmend eine zusammen mit einem Festkontaktstück (34) die Hauptkontaktstelle (35) bildende Kontaktfeder (33) gegen deren Federkraft und schließt dadurch die Hauptkontaktstelle (35). 1. Door locking device for electrical appliances, in particular for washing machines, with a locking slide (3) mounted in a guide groove (1) in the housing (2) and having a plurality of passage openings, - from these openings - As a closing opening (5) assigned to a door locking hook (6) connected to the door to be locked and grasped by it, - At least one other than the locking opening (9) in the locking position of the device is penetrated by a locking plunger (8) to prevent movement,
in which - The locking slide (3) has a latching recess (4) offset parallel to its passage openings,
characterized by the following features: 1.1 In the latching recess (4), in the open position of the locking device, a contact spring (13) opposite a fixed contact piece (14) engages. 1.1.1 which comes out of engagement with the latching recess (4) due to the locking movement of the locking slide (3), 1.1.2 whereby in the locking position a signal contact (15) formed from a fixed contact piece (14) and contact spring (13) can be closed by the spatial displacement of the contact spring (13). 1.2 The locking device contains a locking relay (16) which can be controlled by the signal contact (15) and is located on the side of the locking slide (3) and which consists of a magnetic yoke (17), coil (18), core (19) and one to the side of the pole face (21) of the Magnet lying armature lever (20) with a locking arm (22) and a main contact arm (23) is composed. 1.2.1 The free end of the locking arm (22) is a bearing for the locking plunger (8) which is displaceably guided in a groove (10) in the housing (2). 1.2.2 The free end of the main contact arm (23) is a bearing for a connecting piece (24) which completely fills the through opening (25) of a pressure chamber cover (26) and is thereby guided in a longitudinally displaceable manner and which is connected to a membrane (28) dividing the volume of the pressure chamber (29). is attached. 1.3 The pressure chamber (29) is connected via a passage channel (30) to a pressure compensation chamber (31) which can be filled with a medium from the outside via a connection channel (32). 1 .4 The end of the connecting piece (24) on the side of the diaphragm increasingly acts upon the locking action of a contact spring (33) together with a fixed contact piece (34) forming the main contact point (35) against its spring force and thereby closes the main contact point (35). 2. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet,
daß der Magnetankerhebel (20) drehbar an dem Gehäuseteil (36) gelagert ist, das die Magnetspule (18) und das Joch (17) auf der dem Verriegelungsstößel (8) gegenüberliegenden Seite umfaßt.2. Device according to claim 1,
characterized,
that the magnet armature lever (20) is rotatably mounted on the housing part (36) which comprises the magnet coil (18) and the yoke (17) on the side opposite the locking plunger (8). 3. Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet,
daß die beiden Arme des Magnetankerhebels (20) einen stumpfen Winkel (37) zueinander bilden, dessen Spitze dem Verriegelungsrelais (16) zugewandt ist.3. Device according to claim 2,
characterized,
that the two arms of the magnet armature lever (20) form an obtuse angle (37) to one another, the tip of which faces the locking relay (16). 4. Vorrichtung nach mindestens einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
daß die Bewegungsrichtungen von Magnetankerhebel (20), Verriegelungsstößel (8), Verriegelungsschieber (3), Verbindungsstück (24) und der beiden Kontaktfedern (13,33) in einer gemeinsamen Ebene liegen.4. Device according to at least one of the preceding claims,
characterized,
that the directions of movement of the armature lever (20), locking plunger (8), locking slide (3), connecting piece (24) and the two contact springs (13, 33) lie in a common plane. 5. Vorrichtung nach mindestens einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
daß die Längsausdehnungsrichtungen des Verriegelungsschiebers (3), der Kontaktfedern (13,33), der Membran (28) und des Magnetankerhebels (20) im wesentlichen parallel verlaufen.5. The device according to at least one of the preceding claims,
characterized,
that the longitudinal directions of expansion of the locking slide (3), the contact springs (13, 33), the membrane (28) and the magnet armature lever (20) are essentially parallel. 6. Vorrichtung nach mindestens einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
daß der Hauptkontaktarm (23) des Magnetankerhebels (20) beim Verriegelungsvorgang zunehmend von einer Druckfeder (38) gegen seine Schwenkbewegung beaufschlagt ist.6. The device according to at least one of the preceding claims,
characterized,
that the main contact arm (23) of the magnetic armature lever (2 0 ) is increasingly acted upon by a compression spring (38) against its pivoting movement during the locking process. 7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet,
daß die Druckfeder (38) auf eine in einem Gehäuseteil (40) einliegende Schraube (39) aufgesetzt ist und dadurch in ihrer Rückstellkraft gegen den Hauptkontaktarm (23) justierbar ist.7. The device according to claim 6, characterized in
that the compression spring (38) is placed on a screw (39) lying in a housing part (40) and its restoring force can thereby be adjusted against the main contact arm (23). 8. Vorrichtung nach mindestens einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
daß die Membran (28) in ihrem radial inneren Bereich Versteifungsplatten (27) aufweist, die am Verbindungsstück (24) befestigbar sind.8. The device according to at least one of the preceding claims,
characterized,
that the membrane (28) in its radially inner region has stiffening plates (27) which can be fastened to the connecting piece (24). 9. Vorrichtung nach mindestens einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
daß die Führungsnut (10) für den Verriegelungsstößel (8) über die Ebene des Verriegelungsschiebers (3) hinaus verlängert ist.9. The device according to at least one of the preceding claims,
characterized,
that the guide groove (10) for the locking plunger (8) is extended beyond the level of the locking slide (3). 10. Vorrichtung nach mindestens einem der vorgenannten Ansprüche,
dadurch gekennzeichnet, - daß der Verriegelungsschieber (3) neben der Schließöffnung (5) für den Türverriegelungshaken (6) zwei Durchtrittsöffnungen für den Verriegelungsstößel (8) aufweist, wobei diese Verriegelungsöffnungen (9) in Offenstellung der Vorrichtung beiderseits der Führungsnut (10) für den Verriegelungsstößel (8) in gleichem Abstand liegen, - daß in Offenstellung der Vorrichtung die Führungsnut (1) für den Verriegelungsschieber (3) hinter dessen Freiende einen Freiraum (1') beläßt, dessen Länge mindestens dem halben Abstand der Zentren der Durchtrittsöffnungen entspricht. 10. The device according to at least one of the preceding claims,
characterized, - That the locking slide (3) next to the closing opening (5) for the door locking hook (6) has two through openings for the locking plunger (8), these locking openings (9) in the open position of the device on both sides of the guide groove (10) for the locking plunger (8 ) are at the same distance, - That in the open position of the device, the guide groove (1) for the locking slide (3) leaves a free space (1 ') behind its free end, the length of which corresponds to at least half the distance between the centers of the passage openings. 11. Vorrichtung nach mindestens einem der vorgenannten Ansprüche,
dadurch gekennzeichnet,
daß die Begrenzungsflächen der Verrastausnehmung (4) im Verriegelungsschieber (3) einen stumpfen Winkel zueinander bilden.11. The device according to at least one of the preceding claims,
characterized,
that the boundary surfaces of the latching recess (4) in the locking slide (3) form an obtuse angle to one another. 12. Vorrichtung nach Anspruch 11,
dadurch gekennzeichnet,
daß das in die Verrastausnehmung (4) eingreifende Ende (12) der Kontaktfeder (13) die Form eines "L" aufweist, dessen Horizontalschenkel einem Negativ der Form der Verrastausnehmung (4) gleicht.12. The device according to claim 11,
characterized,
that the end (12) of the contact spring (13) engaging in the latching recess (4) has the shape of an "L", the horizontal leg of which resembles a negative of the shape of the latching recess (4).
EP85106984A 1984-08-18 1985-06-05 Door-locking device for instant locking and delayed unlocking with water level supervision Expired EP0172331B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3430414 1984-08-18
DE19843430414 DE3430414A1 (en) 1984-08-18 1984-08-18 DOOR LOCKING DEVICE WITH IMMEDIATE LOCKING AND DELAYED UNLOCKING WITH WATER LEVEL MONITORING

Publications (2)

Publication Number Publication Date
EP0172331A1 true EP0172331A1 (en) 1986-02-26
EP0172331B1 EP0172331B1 (en) 1988-03-30

Family

ID=6243344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106984A Expired EP0172331B1 (en) 1984-08-18 1985-06-05 Door-locking device for instant locking and delayed unlocking with water level supervision

Country Status (3)

Country Link
US (1) US4620735A (en)
EP (1) EP0172331B1 (en)
DE (2) DE3430414A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354191A2 (en) * 1988-08-02 1990-02-07 BITRON S.p.A. A door lock for a washing machine or drier
IT201700039100A1 (en) * 2017-04-10 2018-10-10 Bitron Spa Door locking device, particularly for domestic appliances.
IT201700039143A1 (en) * 2017-04-10 2018-10-10 Bitron Spa Door locking device, particularly for domestic appliances.

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4995650A (en) * 1989-02-28 1991-02-26 U.S. Controls Corp. Bimetal operated lid switch and lock for appliances
DE59006871D1 (en) * 1989-04-13 1994-09-29 Ellenberger & Poensgen Security door lock for doors of electrical appliances.
ATE244330T1 (en) * 1997-04-30 2003-07-15 Ellenberger & Poensgen DOOR LOCKING DEVICE FOR ELECTRICAL APPLIANCES
IT1296669B1 (en) * 1997-12-22 1999-07-14 Bitron Spa DEVICE FOR LOCKING AND UNLOCKING A DOOR OF A HOUSEHOLD APPLIANCE.
ITTO980511A1 (en) * 1998-06-11 1999-12-13 Bitron Spa DEVICE FOR LOCKING A DOOR OF A DOMESTIC APPLIANCE.
DE10154850C1 (en) * 2001-11-08 2003-06-18 Ellenberger & Poensgen door lock
FR2865491B1 (en) * 2004-01-28 2006-04-28 Procofi ELECTROMAGNETIC LOCK WITH RETRACTABLE PEN FOR A SWING DOOR
EP1619287B1 (en) * 2004-07-13 2007-01-03 C.R.F. Società 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
US20070200673A1 (en) * 2006-02-13 2007-08-30 Godwin Bryan W Apparatus and Method for Controlling and Monitoring Access to a Storage Container
ITMI20070601A1 (en) * 2007-03-26 2008-09-27 Elettrotecnica Rold Srl LOCKING DEVICE FOR THE WINDOW CLOSING DOOR
SI22866A (en) * 2008-09-03 2010-03-31 ITW@METALFLEX@@d@o@o@@Tolmin Safety door lock of household appliance, preferably washing machine
US8925981B2 (en) * 2010-10-15 2015-01-06 II John W. Ray Method and apparatus for locking an elevator or transport system
ITTO20110569A1 (en) * 2011-06-29 2012-12-30 Bitron Spa LOCKING AND UNLOCKING DEVICE OF THE DOOR OF A HOUSEHOLD APPLIANCE
EP2734666B1 (en) * 2011-07-20 2016-01-13 Elettrotecnica Rold Srl Interlock mechanism for the closing door of washing machines or tumble dryers
CZ28601U1 (en) * 2015-05-14 2015-09-07 Alliance Laundry Ce S.R.O. Safety device for detection of locking door of wash machine-washing drum
DE102016008317B4 (en) * 2016-07-07 2018-10-31 Emz-Hanauer Gmbh & Co. Kgaa Door lock for a household electrical appliance
CN109138620B (en) * 2017-06-19 2022-01-07 伊利诺斯工具制品有限公司 Door lock
IT201800006542A1 (en) * 2018-06-22 2018-09-22 Door lock device.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2059318A1 (en) * 1970-11-25 1972-05-31 Bosch Siemens Hausgeraete Spin-dryer, in particular a drum-type washing machine equipped for spin-drying
DE2257587A1 (en) * 1971-11-26 1973-05-30 Onofrio Rocchitelli DEVICE FOR THE INTERLOCKING AND DELAYED RELEASE OF THE LOCKING OF DOORS OR COVERS OF MACHINERY
DE2254595A1 (en) * 1971-12-17 1973-07-12 F E M E Spa DEVICE FOR LOCKING AND DELAYED UNLOCKING OF A DOOR, LOCKING COVER, HOUSING LID OR ANY OTHER ORGANIZATION FOR ENABLING THE INTERIOR OF APPLIANCES OF GENERAL TYPE AND OF WASHING MACHINES IN PARTICULAR
EP0092162A2 (en) * 1982-04-20 1983-10-26 Ellenberger & Poensgen GmbH Door locking device for electrical apparatuses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665383A1 (en) * 1967-09-15 1970-12-10 Patinvest Patent Und Invest Ag Multipole switch, especially for washing machines or the like.
IT994158B (en) * 1973-08-21 1975-10-20 Texas Instruments Italia Spa LOCKING DEVICE WITH VOLTMETRIC OPERATED THERMAL DELAY SWITCH FOR DOORS
US4262945A (en) * 1979-04-27 1981-04-21 Inglis Limited Safety latch for washer closure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2059318A1 (en) * 1970-11-25 1972-05-31 Bosch Siemens Hausgeraete Spin-dryer, in particular a drum-type washing machine equipped for spin-drying
DE2257587A1 (en) * 1971-11-26 1973-05-30 Onofrio Rocchitelli DEVICE FOR THE INTERLOCKING AND DELAYED RELEASE OF THE LOCKING OF DOORS OR COVERS OF MACHINERY
DE2254595A1 (en) * 1971-12-17 1973-07-12 F E M E Spa DEVICE FOR LOCKING AND DELAYED UNLOCKING OF A DOOR, LOCKING COVER, HOUSING LID OR ANY OTHER ORGANIZATION FOR ENABLING THE INTERIOR OF APPLIANCES OF GENERAL TYPE AND OF WASHING MACHINES IN PARTICULAR
EP0092162A2 (en) * 1982-04-20 1983-10-26 Ellenberger & Poensgen GmbH Door locking device for electrical apparatuses

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354191A2 (en) * 1988-08-02 1990-02-07 BITRON S.p.A. A door lock for a washing machine or drier
EP0354191A3 (en) * 1988-08-02 1990-08-08 O.M.P. Officine Meccano-Plastiche Di Precisione S.P.A. A door lock for a washing machine or drier
IT201700039100A1 (en) * 2017-04-10 2018-10-10 Bitron Spa Door locking device, particularly for domestic appliances.
IT201700039143A1 (en) * 2017-04-10 2018-10-10 Bitron Spa Door locking device, particularly for domestic appliances.
WO2018189640A1 (en) * 2017-04-10 2018-10-18 Bitron S.P.A. Door locking device, particularly for electrical household appliances
KR20200014731A (en) * 2017-04-10 2020-02-11 비트론 에스.피.에이. Door locks especially for home appliances
KR20200014733A (en) * 2017-04-10 2020-02-11 비트론 에스.피.에이. Door locks especially for home appliances
US11299913B2 (en) 2017-04-10 2022-04-12 Bitron S.P.A. Door locking device, particularly for electrical household appliances
KR102481001B1 (en) 2017-04-10 2022-12-23 비트론 에스.피.에이. Door locks especially for household appliances
KR102482397B1 (en) * 2017-04-10 2022-12-28 비트론 에스.피.에이. Door locks especially for household appliances
US11591823B2 (en) 2017-04-10 2023-02-28 Bitron S.P.A. Door locking device, particularly for electrical household appliances

Also Published As

Publication number Publication date
DE3562028D1 (en) 1988-05-05
DE3430414A1 (en) 1986-02-27
EP0172331B1 (en) 1988-03-30
US4620735A (en) 1986-11-04

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