EP0347592A1 - Dispositif de verrouillage de porte pour appareils électriques - Google Patents

Dispositif de verrouillage de porte pour appareils électriques Download PDF

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Publication number
EP0347592A1
EP0347592A1 EP89109114A EP89109114A EP0347592A1 EP 0347592 A1 EP0347592 A1 EP 0347592A1 EP 89109114 A EP89109114 A EP 89109114A EP 89109114 A EP89109114 A EP 89109114A EP 0347592 A1 EP0347592 A1 EP 0347592A1
Authority
EP
European Patent Office
Prior art keywords
slide
driver
locking slide
locking
door
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
EP89109114A
Other languages
German (de)
English (en)
Other versions
EP0347592B1 (fr
Inventor
Fritz Krasser
Oswald Onderka
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
Priority to AT89109114T priority Critical patent/ATE66973T1/de
Publication of EP0347592A1 publication Critical patent/EP0347592A1/fr
Application granted granted Critical
Publication of EP0347592B1 publication Critical patent/EP0347592B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0009—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with thermo-electric actuators, e.g. heated bimetals
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door

Definitions

  • the invention relates to a door locking device for electrical equipment with the features specified in the preamble of claim 1.
  • door interlocking devices such as those known from FR-A-2 381 126, FR-A-2 477 620 or US-A-3 617 957 are used.
  • a plate-shaped locking slide between a release and a blocking position in its flat plane is guided in each case longitudinally displaceable on the insulating housing.
  • the gate valve is used to define a pawl of the door of the respective electrical device.
  • the locking slide on a driver in the form of a side nose, which can operate more control contacts.
  • this driver is realized by a motion-coupled slide.
  • a locking slide guided longitudinally displaceably in the insulating housing can intervene in the movement path of the locking slide, for example via bores (US Pat. No. 3,617,957) or recesses (FR-A-2 477 620), with which the latter in his Locking position fixed and the door of the electrical device is locked.
  • An optionally externally heated bimetallic strip is used for the displacement drive of the locking slide and for actuating further switching contacts of the door locking device. By switching these contacts, a control signal can be generated, with which the closed state of the door is monitored by the device control.
  • the displacement drive itself is effected by the engagement of the bimetal or an extension thereof in a recess in the locking slide. By the current applied to the bimetal and the heating caused thereby this is deflected and moves the bolt slide in its engaged position in the bore of the locking slide.
  • the mutual arrangement of the locking and locking slide in the door lock devices according to the prior art has various disadvantages. So engages the cost and weight reasons usually made of plastic locking slide directly into the bore or recess of the locking slide. In a violent operation of the pawl of the door of the locking slide with its bore or recess edge exerts a large shear on the bolt slide, which can be easily destroyed. This will lock the door during operation of the electric Device repealed, which is extremely questionable for safety reasons.
  • the built-in monitoring contacts switching contacts of the door lock device can also be operated when the bolt slide is violently destroyed.
  • the locking slide can be brought into its blocking position and actuate switching contacts via the drivers coupled with it, whereupon the device can be put into operation without a proper locking of the locking slide. This possibility must be excluded for safety reasons.
  • the present invention seeks to provide a door locking device of the type mentioned in such a way that it is significantly improved safety.
  • the particularly simple motion coupling of the driver with the gate valve on a pin further functions.
  • the claimed breaking point serves to ensure that in a violent operation of the pawl of the door and thus the gate valve, the door lock device controlled in one part - namely the pin - yields.
  • the movement coupling between the gate valve and the driver is canceled.
  • the locking slide can indeed be spent in its blocking position for the locking hook of the door, the switch contact associated with the driver, however, can not be actuated, which prevents the further operation of the device and in particular the drum rotation.
  • the driver thus exercises an additional control function.
  • the one-piece design of the pin with the driver (claim 2) is manufacturing technology particularly advantageous because simple.
  • the door locking device according to the invention is further improved in terms of safety.
  • the actuatable via the bolt slide control contacts are reliably opened and a continuation of the electrical device is prevented.
  • the sliding movement of the locking slide is transferred to the locking slide and acted upon in its unlocking direction.
  • two strip-shaped bimetals are arranged substantially parallel to the direction of displacement of the locking slide and with opposite deflection directions in the housing.
  • a heating resistor is used between the two bimetals. This thus fulfills a dual function, namely heating and mechanical coupling between the two bimetals.
  • one of the two bimetals is connected with its deflection end with the bolt slide.
  • the other bimetal is supported with its deflecting on a housing-fixed stop. Due to the mechanical coupling of the bimetals on the heating resistor is an amplification of the deflection movement of the first bimetal by the deflection of the second Bi achieved metal (claim 8).
  • the bolt slide can therefore pass through the bimetallic a relatively high displacement, which ensures a reliable blocking of the driver and thus the gate valve in the blocking position.
  • An optimization with respect to the displacement is achieved by the specified in claim 9 geometric arrangement of bimetallic and heating resistance to each other.
  • the displacement directions of the driver and the bolt slide and the deflection direction of the bimetal aligned parallel to the plane of the plate-shaped locking slide Consequently, since all kinematic processes within the locking device take place in a plane parallel to the plane of the locking slide plane, the overall height of the door locking device according to the invention can be advantageously kept low.
  • the door lock device has a substantially cuboid, molded plastic insulating housing 1, which is composed of a cup-shaped lower part 2 and a snap-on means of lateral spring hook 3 cover 4.
  • a lateral extension 5 of the bottom 6 of the lower part 2 integrally sleeve-like fastening elements 7 are integrally formed in the screws or rivets for fastening the door locking device to the corresponding electrical device - for example, a washing machine - can intervene.
  • the rectangular through-opening 8 for the pawl 9 (FIG. 6) of the door to be locked is furthermore formed in the center.
  • the lower part 2 which is produced as a one-piece plastic injection-molded part, has different webs, partitions and the like. (For example, intermediate wall 30, gutter 32), by means of which the inserted into the lower part 2 functional parts of the door locking device are held, guided and aligned.
  • the cover 4 has, in overlap with the lateral extension 5 of the lower part 2, a likewise integrally molded cover 10 which encloses the region of the lower part 2 located behind the passage opening 8.
  • the inner structure of the door lock device will be explained below.
  • An essential part of this is the approximately rectangular, plate-shaped locking slide 11 which under the bottom 6 of the lower part 2 in the formed between the bottom 6 and the extension 5 slot 12 between a release (Fig. 2) and a blocking position (Fig. 3,4) is guided longitudinally displaceable in its plane.
  • the locking slide 11 has an approximately square engagement opening 13, which is provided at its right angles to the direction of displacement 14 arranged side edges each with bending tabs 15. Furthermore, the locking slide 11 offset at its longitudinal side edges to each other opposite recesses 16,17.
  • rear recess 16 serves to receive the pin 18 of the driver 19 which is guided longitudinally displaceably in the insulating housing 1 on a longitudinal side of the lower part 2 parallel to the displacement direction 14 of the locking slide 11.
  • the driver 19 itself is a block-like plastic molding, which carries at its end pointing in the blocking direction 20, a contact bridge 21 which cooperates with two mating contacts 22 fixed to the housing.
  • the two mating contacts 22 are arranged one above the other and each have terminal lugs 23.
  • the contact bridge 21 is slidably guided on the driver 19 and is subject to the loading of the clamped in a pocket 24 of the driver 19 compression spring 25.
  • a lateral extension 27 is attached, between which and a housing-fixed abutment 28, a compression spring 29 is clamped. This acts on the driver 19 and thereby the movement with this over the pin 18 motion-coupled locking slide 11 in the release direction 26.
  • the anvil 28 serves together with the intermediate wall 30 of the lower part 2 as a longitudinal guide for the driver 19th
  • the locking slide 33 has a center approximately one Transverse slot 34, in which in the embodiment of FIG. 2-10, the deflection end 35 of a first, parallel to the displacement direction 14 arranged bimetal 36 engages.
  • a second bimetal 37 is arranged, which is supported with its deflection end 38 on the intermediate web 32.
  • the two bimetals 36, 37 are connected to one another via an interposed PTC heating resistor 39 both electrically and mechanically. Furthermore, they are anchored with their bent Festenden 40 to terminal lugs 41.
  • an elongated snap-in bimetal 55 and a support contact spring 56 are used instead of the two bimetals 36, 37. These components are anchored analogously to terminal lugs 41 and clamp between the PTC heating resistor 39 for electrical and mechanical connection.
  • the snap-on bimetal 55 engages with its deflection end 35 in the transverse slot 34 of the locking slide 33.
  • the support contact spring 56 is supported with its free end 57 on the intermediate piece 32. It is formed like a frame and has in its frame opening on a spring tongue 58, which acts on the PTC heating resistor 39.
  • the snap-on bimetal 55 abruptly snaps from its de-energized position shown in FIG. 12 to the energized position shown in FIG. 13, thereby achieving instantaneous switching between the unlatched and latched positions of the latch slide.
  • the snap-on bimetal 55 is made from a U-shaped bimetallic blank (not shown), the U-leg free ends 59 forming the deflection end 38 being bent inwards and welded together in the overlapping position (FIGS. 16, 17).
  • a locking hook 9 of a (not shown) door of the electrical device can be pushed through the passage opening 8 in the extension 5 and engage in the engagement opening 13 in the locking slide 11. Since the pawl 9 is spring-loaded in the blocking direction 20, this moves with its hook member 47, the locking slide 11 in the blocking direction 20. The hook portion 47 engages behind the passage opening 8 blocking istsungs document limiting side edge 54 of the extension 5 of the lower part 2. This position must be through the gate valve 11 are secured to ensure locking of the door. This is done indirectly via the driver 19, which is moved together with the locking slide 11 by the engagement of the pawl 9 in the blocking direction 20.
  • the displacement directions (14, 14 ') of the driver 19 and the latch slide 33 and the Auslenkraumen 48,49 of the bimetals 36,37 and the Schnappbimetalls 55 are aligned parallel to the plane of the plate-shaped locking slide 11. The latter is indirectly locked by the engagement of the bolt slide 33 in the path of movement of the driver 19.
  • the contacts formed by the contact springs 42,43 are opened, whereby the continued operation of the electrical device is completely prevented.
  • the contact bridge 21 lifts off from the mating contacts 22 and thus opens the door contact. Because of the break of the Predetermined breaking point 51 of the driver 19 and the locking slide 11 are movement decoupled, although the locking hook 9 may spend the locking slide 11 back into its blocking position, but while the Micultural 19 is not moved.
  • the contact formed by the contact bridge 21 and the mating contacts 22 remains open, whereby a tarnishing of the electrical device is prevented.
  • the door locking device is therefore only ready for use again when it has been placed in an orderly condition with an intact driver 19.
  • the PTC heating resistor 39 is arranged, starting from its fixed end 40, approximately in the region of one third of the total length of the bimetal 36. With respect to the second bimetal 37, it lies approximately in the middle. This arrangement is achieved by an offset in the displacement direction 14 arrangement of the fixed ends 40.
  • terminal lugs 23,41,46 of the various contacts and springs are arranged so that cable plug used in "Rast 5" execution and this can be contacted confusion by a corresponding coding.
  • all connections and moving parts are covered safe to touch, including in particular the cover 10 on the lid 2 is used.
  • the locking slide 11 can be influenced from the outside only via the pawl 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Electric Ovens (AREA)
  • Thermally Actuated Switches (AREA)
  • Lock And Its Accessories (AREA)
  • Push-Button Switches (AREA)
EP89109114A 1988-05-28 1989-05-20 Dispositif de verrouillage de porte pour appareils électriques Expired - Lifetime EP0347592B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89109114T ATE66973T1 (de) 1988-05-28 1989-05-20 Tuerverriegelungsvorrichtung fuer elektrische geraete.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8806999U 1988-05-28
DE8806999U DE8806999U1 (de) 1988-05-28 1988-05-28 Türverriegelungsvorrichtung für elektrische Geräte

Publications (2)

Publication Number Publication Date
EP0347592A1 true EP0347592A1 (fr) 1989-12-27
EP0347592B1 EP0347592B1 (fr) 1991-09-04

Family

ID=6824506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89109114A Expired - Lifetime EP0347592B1 (fr) 1988-05-28 1989-05-20 Dispositif de verrouillage de porte pour appareils électriques

Country Status (3)

Country Link
EP (1) EP0347592B1 (fr)
AT (1) ATE66973T1 (fr)
DE (2) DE8806999U1 (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600390A1 (fr) * 1992-12-01 1994-06-08 Carlo Gavazzi AG Structure de verrouillage de sécurite d'une porte en particulier pour les machines à laver avec un système électronique incorporé
EP0878576A1 (fr) * 1997-04-30 1998-11-18 Ellenberger & Poensgen GmbH Dispositif de verrouillage de porte pour appareils électriques
FR2772574A1 (fr) * 1997-12-22 1999-06-25 Bitron Spa Dispositif de blocage et de deblocage d'une porte d'un appareil electromenager
EP1001069A1 (fr) * 1997-12-23 2000-05-17 Elettrotecnica Rold Srl Dispositif pour ouvrir des portes à distance en particulier dans les machines à laver
EP1039012A1 (fr) * 1999-03-22 2000-09-27 Siber B.V. Système de verrouillage de sécurité d'une porte, en particulier pour les machines à laver avec un système électronique incorporé
US6345848B1 (en) 1998-11-04 2002-02-12 Ellenberger & Poensgen Gmbh Locking apparatus, for example, for household device doors
EP1420100A2 (fr) * 2002-11-12 2004-05-19 Miele & Cie. KG Dispositif de verrouillage de porte, en particulier pour la porte d'une machine de traitement du linge
WO2013011528A1 (fr) * 2011-07-20 2013-01-24 Elettrotecnica Rold S.R.L. Mécanisme de verrouillage pour fermer une porte de machine à laver ou de sèche-linge
CN107386817A (zh) * 2017-08-29 2017-11-24 金华市宏昌电器有限公司 一种电器的门锁开关
CN108634836A (zh) * 2018-05-09 2018-10-12 福建西河卫浴科技有限公司 阻挡器、插接器、插接组件、预制件、插接结构和淋浴房
IT201900015279A1 (it) * 2019-08-30 2021-03-02 Bitron Spa Dispositivo blocca-porta migliorato

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19852578C5 (de) * 1998-11-04 2005-11-17 Ellenberger & Poensgen Gmbh Verriegelungsvorrichtung z. B. für Hausgerätetüren
EP2159316B1 (fr) * 2008-08-26 2011-10-12 Electrolux Home Products Corporation N.V. Machine à laver le linge

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617957A (en) * 1968-12-12 1971-11-02 Texas Instruments Inc Locking devices for washing machines or electromechanical appliances with bimetallic element
DE2440133A1 (de) * 1973-08-21 1975-02-27 Texas Instruments Inc Verriegelungsvorrichtung fuer waschmaschinentueren
DE2708086A1 (de) * 1976-03-18 1977-09-22 Texas Instruments Italia Spa Tuerblockierungsvorrichtung
FR2381126A1 (fr) * 1977-02-18 1978-09-15 Thomson Brandt Machine a laver le linge a grande vitesse d'essorage
FR2418321A1 (fr) * 1978-02-24 1979-09-21 Omp Precisione Spa Dispositif de condamnation de porte, en particulier pour machine a laver de type menager ou machine equivalente
FR2477620A1 (fr) * 1980-03-07 1981-09-11 Kiekert Gmbh Co Kg Dispositif de verrouillage pour appareils menagers ou machines anlogues
WO1988005476A1 (fr) * 1987-01-27 1988-07-28 Onofrio Rocchitelli Verrou de porte, pour machine a laver en particulier

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3617957A (en) * 1968-12-12 1971-11-02 Texas Instruments Inc Locking devices for washing machines or electromechanical appliances with bimetallic element
DE2440133A1 (de) * 1973-08-21 1975-02-27 Texas Instruments Inc Verriegelungsvorrichtung fuer waschmaschinentueren
DE2708086A1 (de) * 1976-03-18 1977-09-22 Texas Instruments Italia Spa Tuerblockierungsvorrichtung
FR2381126A1 (fr) * 1977-02-18 1978-09-15 Thomson Brandt Machine a laver le linge a grande vitesse d'essorage
FR2418321A1 (fr) * 1978-02-24 1979-09-21 Omp Precisione Spa Dispositif de condamnation de porte, en particulier pour machine a laver de type menager ou machine equivalente
FR2477620A1 (fr) * 1980-03-07 1981-09-11 Kiekert Gmbh Co Kg Dispositif de verrouillage pour appareils menagers ou machines anlogues
WO1988005476A1 (fr) * 1987-01-27 1988-07-28 Onofrio Rocchitelli Verrou de porte, pour machine a laver en particulier

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0600390A1 (fr) * 1992-12-01 1994-06-08 Carlo Gavazzi AG Structure de verrouillage de sécurite d'une porte en particulier pour les machines à laver avec un système électronique incorporé
EP0878576A1 (fr) * 1997-04-30 1998-11-18 Ellenberger & Poensgen GmbH Dispositif de verrouillage de porte pour appareils électriques
US6145898A (en) * 1997-04-30 2000-11-14 Ellenberger & Poensgen Gmbh Door locking device for electric apparatus
FR2772574A1 (fr) * 1997-12-22 1999-06-25 Bitron Spa Dispositif de blocage et de deblocage d'une porte d'un appareil electromenager
EP1001069A1 (fr) * 1997-12-23 2000-05-17 Elettrotecnica Rold Srl Dispositif pour ouvrir des portes à distance en particulier dans les machines à laver
US6345848B1 (en) 1998-11-04 2002-02-12 Ellenberger & Poensgen Gmbh Locking apparatus, for example, for household device doors
EP0999326A3 (fr) * 1998-11-04 2003-02-12 Ellenberger & Poensgen GmbH Dispositif de verrouillage, par exemple pour des appareils ménagers
EP1039012A1 (fr) * 1999-03-22 2000-09-27 Siber B.V. Système de verrouillage de sécurité d'une porte, en particulier pour les machines à laver avec un système électronique incorporé
EP1420100A2 (fr) * 2002-11-12 2004-05-19 Miele & Cie. KG Dispositif de verrouillage de porte, en particulier pour la porte d'une machine de traitement du linge
EP1420100A3 (fr) * 2002-11-12 2006-05-03 Miele & Cie. KG Dispositif de verrouillage de porte, en particulier pour la porte d'une machine de traitement du linge
WO2013011528A1 (fr) * 2011-07-20 2013-01-24 Elettrotecnica Rold S.R.L. Mécanisme de verrouillage pour fermer une porte de machine à laver ou de sèche-linge
CN103814167A (zh) * 2011-07-20 2014-05-21 电工技术罗尔德股份公司 用于关闭洗衣机或转筒式干燥机的门的互锁机构
CN103814167B (zh) * 2011-07-20 2016-05-18 电工技术罗尔德股份公司 用于关闭洗衣机或转筒式干燥机的门的互锁机构
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
CN107386817A (zh) * 2017-08-29 2017-11-24 金华市宏昌电器有限公司 一种电器的门锁开关
CN108634836A (zh) * 2018-05-09 2018-10-12 福建西河卫浴科技有限公司 阻挡器、插接器、插接组件、预制件、插接结构和淋浴房
IT201900015279A1 (it) * 2019-08-30 2021-03-02 Bitron Spa Dispositivo blocca-porta migliorato

Also Published As

Publication number Publication date
EP0347592B1 (fr) 1991-09-04
DE8806999U1 (de) 1988-07-28
DE58900257D1 (de) 1991-10-10
ATE66973T1 (de) 1991-09-15

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