EP0172331A1 - Dispositif de verrouillage de porte avec verrouillage immédiat et déverrouillage à retardement avec surveillance de niveau d'eau - Google Patents

Dispositif de verrouillage de porte avec verrouillage immédiat et déverrouillage à retardement avec surveillance de niveau d'eau 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)
English (en)
Other versions
EP0172331B1 (fr
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
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 EP0172331A1 publication Critical patent/EP0172331A1/fr
Application granted granted Critical
Publication of EP0172331B1 publication Critical patent/EP0172331B1/fr
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.
EP85106984A 1984-08-18 1985-06-05 Dispositif de verrouillage de porte avec verrouillage immédiat et déverrouillage à retardement avec surveillance de niveau d'eau Expired EP0172331B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843430414 DE3430414A1 (de) 1984-08-18 1984-08-18 Tuerverriegelungsvorrichtung mit sofortverriegelung und verzoegerter entriegelung mit wasserstandsueberwachung
DE3430414 1984-08-18

Publications (2)

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

Family

ID=6243344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106984A Expired EP0172331B1 (fr) 1984-08-18 1985-06-05 Dispositif de verrouillage de porte avec verrouillage immédiat et déverrouillage à retardement avec surveillance de niveau d'eau

Country Status (3)

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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354191A2 (fr) * 1988-08-02 1990-02-07 BITRON S.p.A. Verrouillage de porte pour machine à laver ou sèche-linge
IT201700039100A1 (it) * 2017-04-10 2018-10-10 Bitron Spa Dispositivo blocca-porta, particolarmente per apparecchi elettrodomestici.
IT201700039143A1 (it) * 2017-04-10 2018-10-10 Bitron Spa Dispositivo blocca-porta, particolarmente per apparecchi elettrodomestici.

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
ATE110493T1 (de) * 1989-04-13 1994-09-15 Ellenberger & Poensgen Sicherheits-türschloss für türen von elektrogeräten.
ATE244330T1 (de) * 1997-04-30 2003-07-15 Ellenberger & Poensgen Türverriegelungsvorrichtung für elektrische geräte
IT1296669B1 (it) * 1997-12-22 1999-07-14 Bitron Spa Dispositivo di bloccaggio e sbloccaggio di un portello di un apparecchio elettrodomestico.
ITTO980511A1 (it) * 1998-06-11 1999-12-13 Bitron Spa Dispositivo di bloccaggio di un portello di un apparecchio elettrodome stico.
DE10154850C1 (de) * 2001-11-08 2003-06-18 Ellenberger & Poensgen Türverriegelung
FR2865491B1 (fr) * 2004-01-28 2006-04-28 Procofi Serrure electromagnetique a pene escamotable pour porte battante
ATE350527T1 (de) * 2004-07-13 2007-01-15 Fiat Ricerche Maschine zum waschen und/oder trocknen von wäsche,mit einer elektrisch betätigbaren verriegelungs- /entriegelungsvorrichtung der tür
US20070200673A1 (en) * 2006-02-13 2007-08-30 Godwin Bryan W Apparatus and Method for Controlling and Monitoring Access to a Storage Container
ITMI20070601A1 (it) * 2007-03-26 2008-09-27 Elettrotecnica Rold Srl Dispositivo di bloccaggio del portello di chiusura di lavatrici
SI22866A (sl) * 2008-09-03 2010-03-31 ITW@METALFLEX@@d@o@o@@Tolmin Varnostna zapora vrat gospodinjskega aparata prednostno pralnega stroja
US8925981B2 (en) * 2010-10-15 2015-01-06 II John W. Ray Method and apparatus for locking an elevator or transport system
ITTO20110569A1 (it) * 2011-06-29 2012-12-30 Bitron Spa Dispositivo di bloccaggio e sbloccaggio del portello di un apparecchio elettrodomestico
US9469932B2 (en) * 2011-07-20 2016-10-18 Elettrotecnica Rold S.R.L. Interlock mechanism for the closing door of washing machines or tumble dryers
CZ28601U1 (cs) * 2015-05-14 2015-09-07 Alliance Laundry Ce S.R.O. Bezpečnostní zařízení pro detekci zajištění dveří pracího bubnu pračky
DE102016008317B4 (de) * 2016-07-07 2018-10-31 Emz-Hanauer Gmbh & Co. Kgaa Türverschluss für ein elektrisches Haushaltsgerät
CN109138620B (zh) * 2017-06-19 2022-01-07 伊利诺斯工具制品有限公司 门锁
IT201800006542A1 (it) * 2018-06-22 2018-09-22 Dispositivo blocco-porta.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2059318A1 (de) * 1970-11-25 1972-05-31 Bosch Siemens Hausgeraete Waescheschleuder,insbesondere eine zum Schleudern eingerichtete 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
DE2254595A1 (de) * 1971-12-17 1973-07-12 F E M E Spa Vorrichtung zum verriegeln und verzoegertem entriegeln eines tuerchens, verschluss- oder gehaeusedeckels oder eines anderen organs zum zugaenglichmachen des inneren von geraeten allgemeiner art und von waschmaschinen im besonderen
EP0092162A2 (fr) * 1982-04-20 1983-10-26 Ellenberger & Poensgen GmbH Dispositif de verrouillage de porte pour appareils électriques

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
DE1665383A1 (de) * 1967-09-15 1970-12-10 Patinvest Patent Und Invest Ag Mehrpoliger Schalter,insbesondere fuer Waschmaschinen od.dgl.
IT994158B (it) * 1973-08-21 1975-10-20 Texas Instruments Italia Spa Dispositivo di bloccaggio con interruttore ritardatore termico ad azionamento voltmetrico per sportelli
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 (de) * 1970-11-25 1972-05-31 Bosch Siemens Hausgeraete Waescheschleuder,insbesondere eine zum Schleudern eingerichtete 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
DE2254595A1 (de) * 1971-12-17 1973-07-12 F E M E Spa Vorrichtung zum verriegeln und verzoegertem entriegeln eines tuerchens, verschluss- oder gehaeusedeckels oder eines anderen organs zum zugaenglichmachen des inneren von geraeten allgemeiner art und von waschmaschinen im besonderen
EP0092162A2 (fr) * 1982-04-20 1983-10-26 Ellenberger & Poensgen GmbH Dispositif de verrouillage de porte pour appareils électriques

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354191A2 (fr) * 1988-08-02 1990-02-07 BITRON S.p.A. Verrouillage de porte pour machine à laver ou sèche-linge
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 (it) * 2017-04-10 2018-10-10 Bitron Spa Dispositivo blocca-porta, particolarmente per apparecchi elettrodomestici.
IT201700039143A1 (it) * 2017-04-10 2018-10-10 Bitron Spa Dispositivo blocca-porta, particolarmente per apparecchi elettrodomestici.
WO2018189640A1 (fr) * 2017-04-10 2018-10-18 Bitron S.P.A. Dispositif de verrouillage de porte, en particulier pour appareils électroménagers
KR20200014731A (ko) * 2017-04-10 2020-02-11 비트론 에스.피.에이. 특히 가전기기를 위한 도어 잠금 장치
KR20200014733A (ko) * 2017-04-10 2020-02-11 비트론 에스.피.에이. 특히 가전기기를 위한 도어 잠금 장치
US11299913B2 (en) 2017-04-10 2022-04-12 Bitron S.P.A. Door locking device, particularly for electrical household appliances
KR102481001B1 (ko) 2017-04-10 2022-12-23 비트론 에스.피.에이. 특히 가전기기를 위한 도어 잠금 장치
KR102482397B1 (ko) * 2017-04-10 2022-12-28 비트론 에스.피.에이. 특히 가전기기를 위한 도어 잠금 장치
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
US4620735A (en) 1986-11-04
DE3430414A1 (de) 1986-02-27
DE3562028D1 (en) 1988-05-05
EP0172331B1 (fr) 1988-03-30

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