EP3269868A1 - Dispositif de verrouillage de porte-crochet amélioré pour appareils ménagers et appareil ménager pourvu d'un tel ensemble - Google Patents

Dispositif de verrouillage de porte-crochet amélioré pour appareils ménagers et appareil ménager pourvu d'un tel ensemble Download PDF

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Publication number
EP3269868A1
EP3269868A1 EP17178335.0A EP17178335A EP3269868A1 EP 3269868 A1 EP3269868 A1 EP 3269868A1 EP 17178335 A EP17178335 A EP 17178335A EP 3269868 A1 EP3269868 A1 EP 3269868A1
Authority
EP
European Patent Office
Prior art keywords
door
hook
lock device
assembly
slider
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.)
Withdrawn
Application number
EP17178335.0A
Other languages
German (de)
English (en)
Inventor
Fabrizio Promutico
Felice Paglia
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 EP3269868A1 publication Critical patent/EP3269868A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention relates to an improved hook-door-lock device assembly for household appliances and household appliance provided with such an assembly.
  • the invention concerns a door-lock device for washers designed and realized, in particular, to allow the opening of the related door by a child, who may have been introduced internally, but which can be used for any type of household appliance.
  • door-lock devices of the latest generation must have a configuration such that, in combination with other factors or technical elements of the washing machine or household appliances in general, such as gaskets, hinges, etc., can guarantee an opening from the inside of the household appliance door in the above-mentioned terms.
  • a door-lock device generally comprises an opening, wherein a hook can be inserted, and a slider, movable from a first position to a second locking position of the door.
  • the hook When the door is closed, the hook is inserted into the door-lock through said opening.
  • the end of the hook is generally bulky and shaped so as to push said slider from said first position to said second position, thereby holding the hook and then the door.
  • a technical problem of the solution described above is that the hook has the end that is introduced into the door-lock device, as said relatively bulky, in order to interfere with the slider and to slide it from an unlocking position to a locking position.
  • the opening must have dimensions proportional to that of the hook, which usually are such as to allow a child to insert a finger.
  • the door-lock devices comprise a so called bridge hook, which is associated with an appropriate mechanical structure of the door-lock device, which is generally rather complex, for which, therefore, much maintenance is required.
  • the technical problem of this solution is that the door-lock has a high mechanical complication and a remarkable thickness due to the presence of a rotating hook, suitable to pass from a disengagement position to an engagement position with the door hook, wherein it is rotated with respect to the disengagement position.
  • Another object of the invention is to provide a hook-door-lock device assembly that prevents any risk for a child to insert a finger inside the door hook opening obtained on the door-lock device itself.
  • a hook-door-lock device assembly for a household appliance that is provided with a door, comprising a door-lock device and a hook, fixable to the door of a household appliance, said hook being intended to engage with said door-lock device, characterized in that said assembly comprises contrast means, arranged so as to keep said hook in a predefined position, and in that said door-lock device comprises an engaging relief shaped so that: when said door is closed, said hook engages with said engaging relief, overcoming the resistance of said contrast means; and when said door is opened, said hook disengages from said engaging relief, overcoming the resistance of said contrast means.
  • said contrast means could comprise a contrast spring.
  • said contrast spring could be arranged so as to exert on said hook a counter force to a predefined rotation angle of said hook with respect to a rotation axis.
  • said engaging relief could have a first surface, facing and inclined towards the outside of said door-lock device, and a second surface adjacent and inclined in the opposite direction with respect to said the first surface, facing towards the inside of said door-locking device.
  • said door-lock device could comprise a containment casing, whereon an opening is obtained, through which said hook is insertable, and said engaging relief could be arranged or obtained on one side of said opening.
  • said hook could comprise a base, said contrast means acting on said base, an engagement portion, fixed with two braces to said base, intended to interfere with said engaging relief, said engagement portion, said braces and said base identifying a slot, such that, when the door is closed, said engaging relief is inserted in said slot.
  • said door-lock device could comprise a slider, movable between a rest position and an operating position, having a first window, and when said door is closed, said hook is inserted in said first window, interfering with said slider, so as to pass it from said rest position to said operating position; and when said door is opened, said hook is extracted from said first window, interfering with said slider so as to pass it from said operative position to said rest position.
  • said first window of said slider could be arranged in correspondence of said opening, when said slider is in said rest position.
  • said slider could have a second opening and said door-lock device could also comprise a locking pin movable between an unlocked position and a locked position, in which it is inserted in said second window of said slider, engaging said slider.
  • an electric household appliance such as a washing machine or the like, comprising a chassis, having a compartment delimited by an access opening to said compartment, and a door, hinged to said chassis, for closing said access opening to said compartment, characterized in that said electric household appliance comprises a hook-door-lock device assembly as defined above, wherein said door-lock device is installed on said chassis close to said opening for the access to said compartment, and said hook is installed on said door, so as to be inserted in said opening of said door-lock device when the door is closed.
  • FIG. 1 it can be seen a hook-door-lock device assembly 1 according to the present invention.
  • the hook-door-lock device assembly 1 comprises essentially a door-lock device 2 and a hook 3, the latter being integral with a door (not shown in the figure) of a household appliance (not shown in the figure), such as a washing machine or the like.
  • the household appliance comprises a chassis having a compartment delimitated by an access opening to said compartment, and a door hinged to said chassis for closing said access opening to said compartment.
  • the door-lock device 2 can be installed on said chassis, close to said access opening to said compartment.
  • the hook 3 is installed on said door so as to interfere, as defined below, with said door locking device 2 when the door is closed.
  • the door locking device 2 comprises a containment casing 21, whereon an opening 22 is formed.
  • Said opening 22 has on one side an engaging relief 23 having a first surface 24 facing outwardly of said containment casing 21 and inclined toward the outside of said door-lock device 2, the function thereof will be better described below; and a second surface 25 adjacent to said first surface 24, but inclined in the opposite direction and in particular facing inwardly of said containment casing 21.
  • Said lock-door device 2 also includes a slider 4 having a substantially planar shape, movable in the directions indicated by the double arrow A, between a rest position (as shown in figure 4 ) and an operating position.
  • the slider 4 also has a first window 41, arranged in correspondence of said opening when said slider 4 is in said rest position, and a second window 42.
  • the operation of said first 41 and said second window 42 will be better described below.
  • the door-lock device 2 also includes a locking pin 5, which moves substantially perpendicular with respect to said slider 4.
  • Said locking pin 5 is arranged in correspondence of said second opening 42 of said slider 4 when said slider 4 is in said operating position.
  • Said locking pin 5 is movable in the directions indicated by the double arrow B between an unlocked position, in which it is lifted, and a locked position, in which it is lowered and inserted into said second window 42 of said slider 4, engaging with said slider 4.
  • said locking pin 5 is moved by means of suitable means from said unlocked position to said locked position, when the household appliance is activated.
  • the hook 3 is of the "bridge” type and comprises a base 31 fixed to the door of the household appliance and rotatable with respect to an axis R, as shown by the arrow C, and an engagement portion 33, fixed with two braces 34 to said base 31.
  • Said engagement portion 33, said braces 34 and said base 31 individually define a slot 35, which in this case is closed.
  • a contrast spring 32 is associated to this hook, acting on the base 31 and fixed thereon.
  • the hook 3 is arranged so that when the door is closed, the engagement portion 33 interferes with said first surface 24 of said engaging relief 23.
  • said engagement portion 33 slides over the whole first surface 24.
  • said engagement portion 33 or said braces 34 of said hook 3 slide on said second surface 25, entering in said opening 41 and interfering with said slider 4. In this way, said engaging relief 23 is inserted into said slot 35 of said hook 3.
  • said engagement portion 33 (or said braces 34) of said hook 3 pushes said slider 4 by moving it from said rest position to said operating position, in which, as said, said second window 42 arranges in correspondence of said locking pin 5.
  • the engagement portion 33 of said hook 3 is able to run the whole second surface 25 of said engaging relief 23, by passing said slider 4 from said operating position to said rest position, to reach said first surface 24 of said engaging relief 23 so that the contrast spring eases the sliding of said engagement portion 33 of said hook 3, by facilitating the ejection of the hook 3 from said opening 22, as well as the opening of the door, thereby allowing the child to go out.
  • the locking pin 5 passes from said unlocked position to said locked position, engaging and inserting in said second window 42 and blocking the door closed.
  • the shape of the hook 3 according to the present invention allows the realization of opening 22 small enough to prevent the insertion of the fingers of a child therein.
  • An advantage of the hook-door-lock assembly is that of allowing a simplified design of the door-lock device, providing at the same time a high level of safety.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Support Devices For Sliding Doors (AREA)
  • Lock And Its Accessories (AREA)
EP17178335.0A 2016-07-11 2017-06-28 Dispositif de verrouillage de porte-crochet amélioré pour appareils ménagers et appareil ménager pourvu d'un tel ensemble Withdrawn EP3269868A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102016000072028A IT201600072028A1 (it) 2016-07-11 2016-07-11 Assieme gancio-dispositivo blocco-porta perfezionato per elettrodomestici ed elettrodomestico provvisto di tale assieme.

Publications (1)

Publication Number Publication Date
EP3269868A1 true EP3269868A1 (fr) 2018-01-17

Family

ID=57610075

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17178335.0A Withdrawn EP3269868A1 (fr) 2016-07-11 2017-06-28 Dispositif de verrouillage de porte-crochet amélioré pour appareils ménagers et appareil ménager pourvu d'un tel ensemble

Country Status (2)

Country Link
EP (1) EP3269868A1 (fr)
IT (1) IT201600072028A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001081696A1 (fr) * 2000-04-21 2001-11-01 Bitron S.P.A. Dispositif de verrouillage de porte pour appareil menager electrique
EP2154287A1 (fr) * 2008-08-12 2010-02-17 Elettrotecnica Rold Srl Dispositif de verrouillage pour la fermeture du couvercle de machines à laver

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001081696A1 (fr) * 2000-04-21 2001-11-01 Bitron S.P.A. Dispositif de verrouillage de porte pour appareil menager electrique
EP2154287A1 (fr) * 2008-08-12 2010-02-17 Elettrotecnica Rold Srl Dispositif de verrouillage pour la fermeture du couvercle de machines à laver

Also Published As

Publication number Publication date
IT201600072028A1 (it) 2018-01-11

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