EP1544387B1 - A door lock device of increased safety, particularly for domestic electrical appliances - Google Patents

A door lock device of increased safety, particularly for domestic electrical appliances Download PDF

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Publication number
EP1544387B1
EP1544387B1 EP04106630A EP04106630A EP1544387B1 EP 1544387 B1 EP1544387 B1 EP 1544387B1 EP 04106630 A EP04106630 A EP 04106630A EP 04106630 A EP04106630 A EP 04106630A EP 1544387 B1 EP1544387 B1 EP 1544387B1
Authority
EP
European Patent Office
Prior art keywords
door
lever
aperture
hook member
slide
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.)
Expired - Fee Related
Application number
EP04106630A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1544387A2 (en
EP1544387A3 (en
Inventor
Fabrizio Promutico
Andrea Saccocci
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.)
Bitron SpA
Original Assignee
Bitron SpA
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 Bitron SpA filed Critical Bitron SpA
Publication of EP1544387A2 publication Critical patent/EP1544387A2/en
Publication of EP1544387A3 publication Critical patent/EP1544387A3/en
Application granted granted Critical
Publication of EP1544387B1 publication Critical patent/EP1544387B1/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0603—Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving rectilinearly
    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B17/00—Accessories in connection with locks
    • E05B17/22—Means for operating or controlling lock or fastening device accessories, i.e. other than the fastening members, e.g. switches, indicators
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/24—Arrangements in which the fastening members which engage one another are mounted respectively on the wing and the frame and are both movable, e.g. for release by moving either of them
    • E05B63/244—Arrangements in which the fastening members which engage one another are mounted respectively on the wing and the frame and are both movable, e.g. for release by moving either of them the striker being movable for latching, the bolt for unlatching, or vice versa
    • 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
    • E05B2047/0048—Circuits, feeding, monitoring
    • E05B2047/0067—Monitoring
    • E05B2047/0069—Monitoring bolt position
    • 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
    • E05B47/0046—Electric or magnetic means in the striker or on the frame; Operating or controlling the striker plate

Definitions

  • the present invention relates to a door lock, particularly for domestic electrical appliances such as, for example, washing machines or the like.
  • the particular object of the invention is a device for locking a door or the like, particularly for a domestic electrical appliance, of the type comprising:
  • Door lock devices of this type are well known. Such a device is described for example in Italian Patent Application TO2000A000658 in the name of the same applicant or in EP-A-0 965 677 and GB 2 015 070 A , both disclosing a locking device according the preamble of claim 1.
  • One object of the present invention is therefore to provide a door lock device of increased safety which makes it possible to overcome the above-indicated disadvantage of prior art devices.
  • a safety mechanism including:
  • a door lock device according to the invention is generally indicated 1.
  • this device comprises a body 2 of moulded plastics material at one end of which is formed an aperture 3 (see in particular Figures from 3 to 5).
  • the aperture 3 is able to allow introduction of a hook member, such as that indicated 4 in Figures 4 and 5 .
  • the door lock device 1 can be fixed close to an opening of a domestic electric appliance, and the hook member 4 is intended to be connected, for example in an articulated manner, to the movable door P associated with this aperture of the domestic electrical appliance.
  • the hook member 4 comprises a leg 4a having an end articulated at 5 to the door P and another end which, after a narrowed section or neck 4b, forms an enlarged head indicated 6.
  • the reference numeral 7 indicates a shaped slide, axially translatable with respect to the support body 2 along a direction approximately orthogonal to the direction of introduction of the hook member 4 into the apparatus 3.
  • the slide 7 has a main aperture 8 which in the various operative conditions or positions of the slide are at least partially facing and aligned with the aperture 3 of the support structure 2.
  • a coil spring 10 ( Figures 2 and 3 ) is interposed between the slide 7 and the support structure 2 and tends to maintain the slide 7 in the rest position shown in Figure 3 in which the aperture 8 of this slide is aligned with the aperture 3 of the body 2.
  • the hook member 4 of the door P can be introduced through the aperture 3 in such a way that its terminal head 6 projects beyond this aperture 3 and engages in the aperture 8 formed in the slide 7 as shown in Figure 4 .
  • an electro-mechanical control device of type known per se.
  • This device is, for example, of the type illustrated in detail and described in the earlier Italian Patent Application mentioned above.
  • This electro-mechanical control device will therefore not be further described in all its detail, but rather solely in relation to the aspects relevant to the purpose of understanding of the present invention.
  • the electro-mechanical control device contained in the support casing 2 includes a movable lock member, indicated 27 in Figures from 3 to 5. This member is mounted so as to be axially translatable, in a vertical direction as seen in Figures from 3 to 5, through an aperture 28 formed in the wall of the support casing 2 ( Figures 4 and 5 ).
  • the movable lock member 27 is displaceable, following activation of the apparatus with which the door lock device 1 is associated, from an inactive or release position shown in Figure 3 , to a locked position shown in broken outline in Figure 4 , in which it is able respectively to allow and to prevent passage of the retainer slide 7 from the working position to the rest position.
  • the lock member 27 is associated, in a manner known per se and not illustrated, with an electric switch capable of changing condition or state when this lock member 27 passes from the release position to the locked position, and vice versa.
  • an electric switch capable of changing condition or state when this lock member 27 passes from the release position to the locked position, and vice versa.
  • One way of associating an electric switch with the lock member is described in detail in the above-mentioned Italian Patent Application.
  • the electric switch associated with the lock member 27 in particular makes it possible to signal to the control unit of the domestic electric appliance, that the door P is closed and locked.
  • the door lock device according to the invention corresponds substantially to the prior art devices, and functions essentially in the following way.
  • the door lock device 1 assumes the rest configuration shown in Figure 3 .
  • the electro-mechanical control device contained in the support casing 2 has no current flowing through it.
  • the lock member 27 is maintained in a retracted position shown in Figure 3 , in which it does not project out of the support casing 2.
  • the spring 10 maintains the slide 7 in the rest position, in which its aperture 8 faces the aperture 3 of the body 2.
  • the hook member 4 associated with this door passes through the aperture 3 of the body 2 and engages in the aperture 8 of the slide 7 as shown in Figure 4 .
  • the slide 7 is correspondingly translated towards the retention position as shown in Figure 4 , against the action of the spring 10 which is compressed.
  • the door P can subsequently be reopened only if the current flowing in the electro-mechanical control device housed in the support member casing 2 is interrupted, for example, at the end of an operating cycle of the domestic electrical appliance, or following interruption of the electrical energy supply to this appliance.
  • the door lock device 1 further includes a security mechanism generally indicated 30.
  • This mechanism comprises a lever generally indicated 31, having one end 31a articulated to the support structure 2 about an axis defined by two aligned pegs or pins 32 ( Figure 2 et seq).
  • the opposite end 31b of the lever 31 faces the aperture 8 of the slide 7 on the opposite side of the aperture 3 of the casing 2 from the said slide.
  • a coil spring indicated 33 has one end anchored to the lever 31, at an intermediate point between its ends 31a and 31b, and the other end anchored to the support structure or casing 2.
  • the spring 33 tends to bias the lever 31 towards the support casing 2 of the door lock device.
  • the end 31b of the lever 31 acts, when the door is closed, as a feeler member 4 sensitive to the position of the hook member 4 of the door P.
  • the lever 31 remains in the position illustrated in Figure 4 even when, after the operation of the domestic electrical appliance has started, the lock member 27 moves into the extended position in which it prevents return of the retainer slide 7 to the rest condition of Figure 3 .
  • the slide 7 partially obstructs the opening of the aperture 3 in the casing 2, the aperture 8 of this slide being in part transversely offset with respect to the aperture 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Structural Engineering (AREA)
  • Lock And Its Accessories (AREA)
  • Electric Ovens (AREA)
  • Casings For Electric Apparatus (AREA)
EP04106630A 2003-12-18 2004-12-16 A door lock device of increased safety, particularly for domestic electrical appliances Expired - Fee Related EP1544387B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001021A ITTO20031021A1 (it) 2003-12-18 2003-12-18 Dispositivo blocca-porta a sicurezza incrementata, particolarmente per apparecchi elettrodomestici.
ITTO20031021 2003-12-18

Publications (3)

Publication Number Publication Date
EP1544387A2 EP1544387A2 (en) 2005-06-22
EP1544387A3 EP1544387A3 (en) 2008-05-28
EP1544387B1 true EP1544387B1 (en) 2010-12-15

Family

ID=34509523

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04106630A Expired - Fee Related EP1544387B1 (en) 2003-12-18 2004-12-16 A door lock device of increased safety, particularly for domestic electrical appliances

Country Status (4)

Country Link
EP (1) EP1544387B1 (es)
DE (1) DE602004030530D1 (es)
ES (1) ES2358108T3 (es)
IT (1) ITTO20031021A1 (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016008317A1 (de) 2016-07-07 2018-01-11 Emz-Hanauer Gmbh & Co. Kgaa Türverschluss für ein elektrisches Haushaltsgerät
US11624209B2 (en) 2019-05-10 2023-04-11 Emz Hanauer Gmbh & Co. Kgaa Door lock for a domestic electrical appliance

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20050473A1 (it) * 2005-07-08 2007-01-09 Bitron Spa Dispositivo di ritenuta, particolarmente per una porta di un apparecchio elettrodomestico
ITTO20060912A1 (it) 2006-12-21 2008-06-22 Bitron Spa Sistema per il fissaggio senza viti di un corpo ad un pannello
IT1392570B1 (it) * 2008-12-24 2012-03-09 Bitron Spa Dispositivo blocca-porta, particolarmente per apparecchi elettrodomestici
IT1398984B1 (it) * 2010-03-22 2013-03-28 Bitron Spa Dispositivo blocco-porta perfezionato.
IT1402143B1 (it) 2010-09-27 2013-08-28 Bitron Spa Sistema per l apertura di un portello, in particolare per il portello di un elettrodomestico.
ITTO20110564A1 (it) * 2011-06-28 2012-12-29 Bitron Spa Dispositivo blocca-porta, particolarmente per apparecchi elettrodomestici
CN104481277B (zh) * 2014-12-16 2017-07-21 付方安 信号控制电动钩锁
US11352731B2 (en) * 2017-06-21 2022-06-07 Illinois Tool Works Inc. Contamination resistant appliance latch
CN108824966B (zh) 2018-06-04 2020-11-10 东莞安联电器元件有限公司 门锁、锁盖结构及锁止机构
CN110565330B (zh) * 2019-10-23 2021-08-06 温州天健电器有限公司 一种锁定装置及洗衣机

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4074545A (en) * 1976-08-26 1978-02-21 Franklin Manufacturing Company Bimetal lid lock
IT1162081B (it) * 1978-02-24 1987-03-18 Omp Off Meccano Plast Dispositivo di bloccaggio della porta,in particolare per lavabiancheria domestiche e simili
GB8410796D0 (en) * 1984-04-27 1984-06-06 Hotpoint Ltd Interlock mechanism
DE19815591A1 (de) * 1998-04-08 1999-10-14 Ellenberger & Poensgen Türverriegelungsvorrichtung für elektrische Geräte
ITTO980511A1 (it) * 1998-06-11 1999-12-13 Bitron Spa Dispositivo di bloccaggio di un portello di un apparecchio elettrodome stico.
DE19848275C2 (de) * 1998-10-20 2002-01-10 Zangenstein Elektro Vorrichtung zum Verriegeln einer Tür eines Haushaltsgerätes

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016008317A1 (de) 2016-07-07 2018-01-11 Emz-Hanauer Gmbh & Co. Kgaa Türverschluss für ein elektrisches Haushaltsgerät
DE102016008317B4 (de) 2016-07-07 2018-10-31 Emz-Hanauer Gmbh & Co. Kgaa Türverschluss für ein elektrisches Haushaltsgerät
US10806322B2 (en) 2016-07-07 2020-10-20 Emz-Hanauer Gmbh & Co. Kgaa Door latch for a domestic electrical appliance
US11624209B2 (en) 2019-05-10 2023-04-11 Emz Hanauer Gmbh & Co. Kgaa Door lock for a domestic electrical appliance
US11629528B2 (en) 2019-05-10 2023-04-18 Emz-Hanauer Gmbh & Co. Kgaa Door lock for a domestic electrical appliance with a movably arranged locking member
US11891838B2 (en) 2019-05-10 2024-02-06 Emz-Hanauer Gmbh & Co. Kgaa Door lock for a domestic electrical appliance

Also Published As

Publication number Publication date
EP1544387A2 (en) 2005-06-22
ITTO20031021A1 (it) 2005-06-19
DE602004030530D1 (de) 2011-01-27
ES2358108T3 (es) 2011-05-05
EP1544387A3 (en) 2008-05-28

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