EP3312333B1 - Dispositif de verrouillage de porte pour une porte d'appareil ménager - Google Patents

Dispositif de verrouillage de porte pour une porte d'appareil ménager Download PDF

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Publication number
EP3312333B1
EP3312333B1 EP17181006.2A EP17181006A EP3312333B1 EP 3312333 B1 EP3312333 B1 EP 3312333B1 EP 17181006 A EP17181006 A EP 17181006A EP 3312333 B1 EP3312333 B1 EP 3312333B1
Authority
EP
European Patent Office
Prior art keywords
lug
rotary hook
retaining member
door
blocking
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.)
Active
Application number
EP17181006.2A
Other languages
German (de)
English (en)
Other versions
EP3312333A1 (fr
Inventor
Fabrizio Promutico
Stefano Colucci
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 EP3312333A1 publication Critical patent/EP3312333A1/fr
Application granted granted Critical
Publication of EP3312333B1 publication Critical patent/EP3312333B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/14—Doors or covers; Securing means therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/02—Automatic catches, i.e. released by pull or pressure on the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
    • E05Y2900/312—Application of doors, windows, wings or fittings thereof for domestic appliances for washing machines or laundry dryers

Definitions

  • the present invention relates to an improved dual push door-lock device.
  • the invention concerns a door-lock device of the known type, also known as push-push opening device, designed and manufactured in particular for allowing an easy opening of the door and at the same time for allowing the ease exit of a child, who is introduced into a household appliance.
  • a technical problem with the lock-door devices of the type described above is that in case of the door is open and can be closed in push-push mode, it is not generally possible to lock it when the washing machine is operating. This made this type of door-lock device not applicable in washing machines, which, as it is well known, should provide that the door cannot be opened when the washing machine is operating.
  • a door-lock device for locking a door of a household appliance, such as a washing machine and the like, said door being of the type comprising a lug
  • said device comprising a containment casing, having an opening, in which said lug is insertable, a closing assembly, arranged within said containment casing, comprising a retaining member intended to engage with said lug, such that when said lug is pushed towards said retaining member, said retaining member retains said lug, and when said lug is then pushed toward said retaining member, said retaining member free said lug, an blocking assembly arranged in said containment casing, said blocking assembly interfering with said retaining member, so as to allow in turn said lug to disengage, when engaged, from said retaining member due to a traction of said retaining member over a presettable threshold, and a safety pin, movable between a retracted position, in which said household appliance is not operating, and an extracted position, in which said household appliance operates and
  • said retaining member could be a rotary hook.
  • said blocking assembly could comprise a disengagement member, for disengaging said retaining member, so as to allow said lug to disengage from said retaining member due to a traction of said retaining member over a presettable threshold.
  • said closing assembly could comprise a support, on which said rotary hook is pivoted to rotate, said support being in its turn pivoted to said containment casing, and a lever hinged at one end to said support, and having a pawl
  • said rotary hook could have on the surface a constrained path, on which said pawl is constrained, such that: when said lug is pushed towards said rotary hook, said pawl follows a first part of said constrained path, in which it also carries out lateral movements, parallel to the axis of rotation of said rotary hook, causing the rotation of said rotary hook, engaging said lug; and when said lug is then pushed towards said rotary hook, said pawl follows a second part of said constrained path, in which it also carries out lateral movements, parallel to the axis of rotation of the rotary hook, causing a further rotation of said rotary hook disengaging said lug; and said disengagement member for disengaging said rotary hook being arranged to interfere with said lever,
  • said closing assembly could comprise at least one compensation spring, preferably two compensation springs, interposed between said containment casing and said support, said compensation spring being adapted to compensate the stresses on said rotary hook and/or the deviations of the position of said door, when said rotary hook is engaged with said lug.
  • said blocking assembly could comprise a control slider, integral with said lever of said closing assembly, said control slider comprising said disengagement member.
  • said disengagement member could have a tapered shape
  • said lever could have a slot, the top of said relief being inserted in said slot, while the base of said relief is wider than said slot, such that, when said rotary hook undergoes a traction over said presettable threshold, said slot of said lever interferes with the wider base of the relief of the control slider, causing the lifting of said lever with respect to said rotary hook, thus disengaging said pawl from said constrained path, releasing the hook and allowing the disengagement of said lug from said rotating hook.
  • said blocking assembly could comprise a blocking slider having a first end, intended to interfere with said lug of the door once it is inserted in said opening, and an engagement spring, arranged between said blocking slider and said containment casing, said engagement spring pushing said blocking slider, so that it interferes with said lug.
  • said blocking slider could be interposed between said support itself and said containment casing.
  • said safety pin when it is in said extracted position, in which said household appliance operates, does not allow the lateral movement of said control slider and the movement of said blocking slider.
  • said control slider could comprise a tongue, which interferes with said safety pin, when it is extracted.
  • a door-lock device 1 according to the present invention is observed.
  • Said block-door device 1 essentially comprises a containment casing 2, a closing assembly 3, a blocking assembly 4 and a blocking module 5.
  • the containment casing 2 has an opening 21, in which it is insertable a lug N, integral with the household appliance door (not shown in the figure).
  • said closing assembly 3 Within said containment casing 2, said closing assembly 3, said blocking assembly 4 and said blocking module 5 are arranged.
  • Said closing assembly 3 comprises a support 31 having a substantially planar shape.
  • Said support 31 is pivoted, at one end, about said containment casing 2. At the other end, instead, between said support 31 and said containment casing 2, and substantially in correspondence with said opening 21, two compensation springs 32 are arranged, the operation thereof will be better defined in the following.
  • Said closing assembly 3 also includes a retaining member, which, in this embodiment, is a rotary hook 33, and a lever 34.
  • the rotary hook 33 is capable of engaging with said lug N when the door is closed. On the surface of said rotary hook 33, a constrained path 331 is also obtained.
  • the lever 34 has a first end 341, hinged to said support 31, and a second end 342 constrained to said constrained path 331 by means of a pawl 343.
  • the lever 34 is also capable of moving laterally to follow said constrained path 331. Further, said lever 34 has also a slot 344, the function thereof will be better defined below.
  • the blocking assembly 4 comprises a blocking slider 41, arranged substantially parallel to said support 31, between the support 31 itself and the containment casing 2.
  • Said blocking slider 41 has a first end 411, intended to interfere with the lug N of the door when the latter is inserted in said opening 21, and a second end 412, opposite the first end 412. Between said second end 412 of said blocking slider 41 and said containment casing 2, an engagement spring 42 is provided, which is capable of pushing said blocking slider 41, so that it interferes with said lug N.
  • Said blocking assembly 4 also includes a control slider 43, integral with said lever 34.
  • Said control slider 43 includes a tongue 431 and a disengagement member, which, in this embodiment, is a disengagement relief 432.
  • Said disengagement relief 432 is arranged vertically, i.e. perpendicular to the surface of said control slider 43, and has an upward tapered shape. The top of said disengagement relief 432 is inserted into said slot 344, while the base of said disengagement relief 432 is wider than said slot 344. The function of said disengagement relief 432 will be better described below.
  • the blocking module 5 of the door-lock device 1 comprises a logic board (not shown in the figures) controlled by the machine control logic, and a safety pin 51, movable between a retracted position, in which the washing machine is not operating, and an extracted position, in which the washing machine is operating.
  • said safety pin 51 When said safety pin 51 is in said extracted position, it does not allow the lateral movement of said control slider 43, according to the arrows C (parallel to the axis of rotation of the rotary hook 33), and the movement of said blocking slider 41, always according to the arrow A.
  • Said blocking slider 41 is in contact with said lug N by pushing the engagement spring 42 without, however, preventing its free entry and exit from said opening 21.
  • the hook 33 drags the support 31 by overcoming the compression resistance of said compensation springs 32.
  • the movement of said support 31 simply allows the compensation of the gaskets that can be around the door or around the seat that houses said door when it is closed. In fact, due to temperature or degradation, door seals may increase or decrease in volume.
  • the compensation springs 32 may be slightly compressed or extended.
  • the safety pin 51 interferes, with its encumbrance with the tongue 431 of said control slider 43, preventing lateral movements thereof and thus any possibility of lateral movement to said lever 34. Therefore, the rotary hook 33 can no longer rotate, releasing the lug N.
  • the first slider interferes with the safety pin 51, remaining engaged with said lug N.
  • said door is blocked, preventing the opening thereof.
  • An advantage of the door-lock device according to the present invention is that of allowing a push-push opening and at the same time both the opening by pulling, in case of a force greater than a predetermined threshold, and the blocking of the door when the washing machine or household appliance in general is activated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Lock And Its Accessories (AREA)

Claims (10)

  1. Dispositif de verrouillage de porte (1) pour verrouiller une porte d'un appareil ménager, tel qu'un lave-linge et similaire, ladite porte étant du type comprenant un ergot (N), ledit dispositif (1) comprenant
    une enveloppe de confinement (2), ayant une ouverture, dans laquelle ledit ergot (N) peut être inséré,
    un ensemble de fermeture (3), agencé au sein de ladite enveloppe de confinement (2), comprenant un élément de retenue (33) prévu pour venir en prise avec ledit ergot (N), de sorte que lorsque ledit ergot (N) est poussé en direction dudit élément de retenue (33), ledit élément de retenue (33) retient ledit ergot (N), et lorsque ledit ergot (N) est ensuite poussé en direction dudit élément de retenue (33), ledit élément de retenue (33) libère ledit ergot (N),
    un ensemble de blocage (4) agencé dans ladite enveloppe de confinement (2), ledit ensemble de blocage (4) interférant avec ledit élément de retenue (33), de façon à permettre à son tour audit ergot (N) de se désolidariser, lorsqu'il est en prise, dudit élément de retenue (33) du fait d'une traction dudit élément de retenue (33) sur un seuil préréglable, et
    une goupille de sécurité (51), mobile entre une position rétractée, dans laquelle ledit appareil ménager ne fonctionne pas, et une position extraite, dans laquelle ledit appareil ménager fonctionne et ladite goupille de sécurité (51) interférant avec ledit ensemble de blocage, de façon à bloquer ledit ergot (N) et garder ainsi ladite porte fermée,
    caractérisé en ce que ledit ensemble de blocage (4) comprend un élément de désolidarisation (432), pour désolidariser ledit élément de retenue (33), de façon à permettre audit ergot (N) de se désolidariser dudit élément de retenue (33) du fait d'une traction dudit élément de retenue (33) sur un seuil préréglable.
  2. Dispositif (1) selon la revendication 1, caractérisé en ce que ledit élément de retenue est un crochet rotatif (33).
  3. Dispositif (1) selon l'une quelconque des revendications précédentes, caractérisé
    en ce que ledit ensemble de fermeture (3) comprend un support (31), sur lequel ledit crochet rotatif (33) pivote pour tourner, ledit support (31) pivotant à son tour sur ladite enveloppe de confinement (2), et
    un levier (34) articulé à une extrémité (341) audit support (31), et ayant un cliquet (343), et
    en ce que ledit crochet rotatif (33) a sur la surface un trajet contraint (331), sur lequel ledit cliquet (343) est contraint, de sorte que :
    - lorsque ledit ergot (N) est poussé en direction dudit crochet rotatif (33), ledit cliquet (343) suit une première partie dudit trajet contraint (331), dans laquelle il effectue également des mouvements latéraux, parallèles à l'axe de rotation dudit crochet rotatif (33), amenant la rotation dudit crochet rotatif (33), venant en prise avec ledit ergot (N) ; et
    - lorsque ledit ergot (N) est ensuite poussé en direction dudit crochet rotatif (33), ledit cliquet (343) suit une deuxième partie dudit trajet contraint (331), dans laquelle il effectue également des mouvements latéraux, parallèles à l'axe de rotation du crochet rotatif (33), amenant une rotation supplémentaire dudit crochet rotatif (33) désolidarisant ledit ergot (N) ; et
    ledit élément de désolidarisation (432) pour désolidariser ledit crochet rotatif (33) étant agencé pour interférer avec ledit levier (34), désolidarisant ledit cliquet (343) dudit trajet contraint (331).
  4. Dispositif (1) selon la revendication 3, caractérisé en ce que ledit ensemble de fermeture (3) comprend au moins un ressort de compensation (32), de préférence deux ressorts de compensation (32), interposés entre ladite enveloppe de confinement (2) et ledit support (31), ledit ressort de compensation (32) étant conçu pour compenser les contraintes sur ledit crochet rotatif (33) et/ou les déviations de la position de ladite porte, lorsque ledit crochet rotatif (33) est en prise avec ledit ergot (N).
  5. Dispositif (1) selon l'une quelconque des revendications 3 ou 4, caractérisé en ce que ledit ensemble de blocage (4) comprend un coulisseau de commande (43), solidaire dudit levier (34) dudit ensemble de fermeture (3), ledit coulisseau de commande (43) comprenant ledit élément de désolidarisation (432).
  6. Dispositif (1) selon la revendication 5, caractérisé
    en ce que ledit élément de désolidarisation (432) a une forme effilée, et
    en ce que ledit levier (34) a une encoche (344), la partie supérieure dudit dégagement (432) étant insérée dans ladite encoche (344), alors que la base dudit dégagement (432) est plus large que ladite encoche (344),
    de sorte que, lorsque ledit crochet rotatif (33) subit une traction sur ledit seuil préréglable, ladite encoche (344) dudit levier (34) interfère avec la base plus large du dégagement (432) du coulisseau de commande (43), amenant le soulèvement dudit levier (34) par rapport audit crochet rotatif (33), désolidarisant ainsi ledit cliquet (343) dudit trajet contraint (331), libérant le crochet (33) et permettant la désolidarisation dudit ergot (N) dudit crochet rotatif (33).
  7. Dispositif (1) selon l'une quelconque des revendications précédentes, caractérisé
    en ce que ledit ensemble de blocage (4) comprend un coulisseau de blocage (41) ayant une première extrémité (411), prévue pour interférer avec ledit ergot (N) de la porte une fois qu'il est inséré dans ladite ouverture (21), et
    un ressort de mise en prise (42), agencé entre ledit coulisseau de blocage (41) et ladite enveloppe de confinement (2), ledit ressort de mise en prise (42) poussant ledit coulisseau de blocage (41), de sorte qu'il interfère avec ledit ergot (N).
  8. Dispositif (1) selon la revendication 7, caractérisé en ce que ledit coulisseau de blocage (41) est interposé entre ledit support (31) lui-même et ladite enveloppe de confinement (2).
  9. Dispositif (1) selon l'une quelconque des revendications 5 à 8, caractérisé en ce que ladite goupille de sécurité (51), lorsqu'elle est dans ladite position extraite, dans laquelle ledit appareil ménager fonctionne, ne permet pas le mouvement latéral dudit coulisseau de commande (43) et le mouvement dudit coulisseau de blocage (41).
  10. Dispositif (1) selon la revendication 9, caractérisé en ce que ledit coulisseau de commande (43) comprend une languette (431), qui interfère avec ladite goupille de sécurité (51), lorsqu'elle est extraite.
EP17181006.2A 2016-10-20 2017-07-12 Dispositif de verrouillage de porte pour une porte d'appareil ménager Active EP3312333B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102016000105630A IT201600105630A1 (it) 2016-10-20 2016-10-20 Dispositivo blocco-porta a doppia spinta perfezionato.

Publications (2)

Publication Number Publication Date
EP3312333A1 EP3312333A1 (fr) 2018-04-25
EP3312333B1 true EP3312333B1 (fr) 2019-05-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP17181006.2A Active EP3312333B1 (fr) 2016-10-20 2017-07-12 Dispositif de verrouillage de porte pour une porte d'appareil ménager

Country Status (4)

Country Link
EP (1) EP3312333B1 (fr)
KR (1) KR102492086B1 (fr)
CN (1) CN107965202B (fr)
IT (1) IT201600105630A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT202000010906A1 (it) * 2020-05-13 2021-11-13 Elettrotecnica Rold Srl Dispositivo per la chiusura e apertura di sportelli, in particolare di sportelli di elettrodomestici quali lavastoviglie o simili

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7306266B2 (en) * 2004-03-05 2007-12-11 Illinois Tool Works, Inc. Appliance latch having a rotating latch hook mounted on a linear slide
KR101056813B1 (ko) * 2009-10-22 2011-08-16 동우정밀(주) 도어용 래치 어셈블리
IT1396735B1 (it) * 2009-11-26 2012-12-14 Bitron Spa Dispositivo di chiusura porta per il portello di un elettrodomestico.
CN102094305B (zh) * 2009-12-11 2013-07-24 杭州神林电子有限公司 门锁装置
IT1399631B1 (it) * 2010-04-21 2013-04-26 Elettrotecnica Rold Srl Dispositivo di chiusura "push-pull"
IT1402674B1 (it) * 2010-11-08 2013-09-13 Eltek Spa Dispositivo bloccoporta per elettrodomestici e meccanismo bistabile
EP2734666B1 (fr) * 2011-07-20 2016-01-13 Elettrotecnica Rold Srl Mécanisme de verrouillage pour fermer une porte de machine à laver ou de sèche-linge
CN103015810B (zh) * 2011-09-23 2016-02-17 伊利诺斯工具制品有限公司 门锁和安装有相同门锁的设备
ITRM20120055A1 (it) * 2012-02-20 2013-08-21 Bitron Spa Dispositivo blocco-porta per un portello di un elettrodomestico.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
IT201600105630A1 (it) 2018-04-20
CN107965202A (zh) 2018-04-27
EP3312333A1 (fr) 2018-04-25
CN107965202B (zh) 2019-12-13
KR20180043750A (ko) 2018-04-30
KR102492086B1 (ko) 2023-01-25

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