EP2840208B1 - Dispositif de verrouillage et appareil ménager - Google Patents

Dispositif de verrouillage et appareil ménager Download PDF

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Publication number
EP2840208B1
EP2840208B1 EP13180805.7A EP13180805A EP2840208B1 EP 2840208 B1 EP2840208 B1 EP 2840208B1 EP 13180805 A EP13180805 A EP 13180805A EP 2840208 B1 EP2840208 B1 EP 2840208B1
Authority
EP
European Patent Office
Prior art keywords
locking device
casing
path
door
wheel
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
EP13180805.7A
Other languages
German (de)
English (en)
Other versions
EP2840208A1 (fr
Inventor
Francesco Lampitelli
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.)
Electrolux Appliances AB
Original Assignee
Electrolux Appliances AB
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 Electrolux Appliances AB filed Critical Electrolux Appliances AB
Priority to EP13180805.7A priority Critical patent/EP2840208B1/fr
Publication of EP2840208A1 publication Critical patent/EP2840208A1/fr
Application granted granted Critical
Publication of EP2840208B1 publication Critical patent/EP2840208B1/fr
Active 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
    • 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
    • E05C19/022—Released by pushing in the closing direction
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/02—Doors specially adapted for stoves or ranges
    • F24C15/022—Latches
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4257—Details of the loading door
    • A47L15/4259—Arrangements of locking or security/safety devices for doors, e.g. door latches, switch to stop operation when door is open
    • 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
    • E05C19/024—Automatic catches, i.e. released by pull or pressure on the wing with a bifurcated latch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details

Definitions

  • the present invention relates to a locking device for domestic appliance. Further, the present invention relates to a domestic appliance including a locking device.
  • Many domestic appliances comprise a cabinet with an opening and a door for covering and closing said opening.
  • the door includes a handle or the like for opening and closing the door by a user.
  • the handle sticks out from the door and increases the dimensions of said door. It would be advantageous, if the handle sticking out from the door could be avoided, so that the dimensions of the door are minimized.
  • WO 2011/132213 A1 discloses a push-pull locking device for the door of a washing and drying machine.
  • the locking device includes a body of containment housing a locking wheel for a door latch.
  • a sliding bolt is capable of preventing the rotation of the wheel.
  • a time-delay mechanism is fitted with a locking pawl for said sliding bolt.
  • the wheel is fitted with a cavity that presents a surface tilted with respect to the plane of rotation. The force exerting to the bolt is resolved, when the door is pulled, while the locking device is in a closed and locked position.
  • WO 2009/116094 A1 discloses an oven including a bottom-hinged door without handle.
  • the door is provided with a locking and releasing mechanism, e.g. a push-pull, push-push or a touch latch, located on the door and on the body of the oven.
  • a device for rotating the door open and slowly down is suited to make the door open, when it is released and to damp the movement of the door during its total opening move.
  • the locking and releasing mechanism is activated by control means on the outer side of the door or on the control panel of the oven or by electric mechanisms operated by a remote control.
  • DE 198 25 324 A1 discloses a household appliance with a movable part like a drawer including a closure device.
  • the closure device holds the drawer in a rear end position against the force of the spring.
  • the closure device includes an element with a predetermined path. A manual push or pressure opens the drawer. Then the drawer is moved outwards by the spring force. If the drawer is completely inserted by a manual pushing, then said drawer is snapped in with the closure device, so that the drawer is closed and remains in its rear end position.
  • WO 2010/056062 A2 discloses a home-bar locking device installed at a refrigerator door.
  • the home-bar locking device comprises a hollow housing inserted in a door of the refrigerator in such a way that one side wall of which is exposed to the outside and has an open side.
  • a rotation body of the home-bar locking device is fixed inside the housing with a shaft. The rotation body is pivoting in a restorable manner by a spring that runs through the shaft.
  • a latch of the home-bar locking device protrudes on one side surface of the rotation body and is in communication with the open side of the housing in order to be united with a locker installed at the home bar.
  • a guide bar of the home-bar locking device is with one side inserted into and guided along a guide groove formed in the other side surface of the rotation body. The other side of the guide bar is connected to the other side of the exposed side wall of the housing.
  • a pressuring piece of the home-bar locking device is installed at housing in order to pressurize the outside of the guide bar such that the guide
  • the present invention relates to locking device for a domestic appliance, said locking device is provided for opening and closing a door or a drawer at a cabinet of the domestic appliance and comprises:
  • the main idea of the present invention is the arrangement and interaction of the wheel element, the path element and the spring elements.
  • the locking device allows a push-push system for opening and closing the door or drawer.
  • a handle is not required, so that the door or the front of the drawer may have a flat form.
  • the casing is subdivided into a main casing and a lateral casing.
  • the main casing and the lateral casing are connected or connectable by at least one snap-in mechanism.
  • the wheel element is arranged in the main casing, while the path element may be arranged in the lateral casing.
  • first spring element may be arranged in the main casing, while the second spring element may be arranged in the lateral casing.
  • the first spring element is a torsion spring element.
  • the second spring element is also torsion spring element.
  • the second spring element may be an extension spring element.
  • the casing, the main casing and/or the lateral casing are made of plastics.
  • the rotation and/or displacement of the path element may be limited by a mechanical lock element.
  • the rotation and/or displacement of the path element may be guided by a cam.
  • the present invention relates to a domestic appliance including a cabinet, a door for closing an opening said cabinet and/or a drawer inserted in or insertable into the cabinet, and a locking device for locking the door and/or the drawer, respectively, at the cabinet, wherein the domestic appliance includes the locking device mentioned above.
  • the locking device is mounted inside a column of the door.
  • the locking device is mounted inside a plastic column of the door.
  • FIG 1 illustrates a perspective front view of a locking device according to a first embodiment of the present invention.
  • the locking device includes a main casing 10 and a lateral casing 12.
  • the main casing 10 and the lateral casing 12 are connected by a snap-in mechanism.
  • the main casing 10 comprises a recess 14 for receiving a hook element 16.
  • FIG 2 illustrates a perspective rear view of the locking device according to the first embodiment of the present invention.
  • a wheel element 18 and a first torsion spring element 20 are arranged inside the main casing 10.
  • the wheel element 18 is rotatable within the main casing 10 around a rotational axis. In FIG 2 the rotational axis extends horizontally.
  • the first torsion spring element 20 interacts between the wheel element 18 and the main casing 10.
  • the first torsion spring element 20 effects a clockwise rotation of the wheel element 18.
  • a pin element 28 is attached at the wheel element 18.
  • the pin element 28 is arranged in an outer portion of the wheel element 18.
  • the pin element 28 has a cylindrical shape.
  • the elongated axis of the pin element 28 extends in parallel to the rotational axis of the wheel element 18.
  • FIG 3 illustrates a further perspective rear view of the locking device according to the first embodiment of the present invention.
  • a path element 22 and a second torsion spring element 24 are arranged inside the lateral casing 12.
  • the path element 22 is pivotable within the lateral casing 12 around a horizontal axis.
  • the second torsion spring element 24 interacts between the path element 22 and the lateral casing 12.
  • the second torsion spring element 24 effects a counter-clockwise rotation of the path element 22.
  • FIG 4 illustrates an exploded perspective rear view of the locking device according to the first embodiment of the present invention.
  • the path element 22 is formed as a disk.
  • One of the two large-area sides of the path element 22 is arranged face to face with the main casing 10 and includes a path 26.
  • the path 26 is formed as a closed groove in said large-area side of the path element 22.
  • the path 26 is formed as an approximately heart-shaped groove.
  • the pin element 28 attached at the wheel element 18 moves along the path 26 of the path element 22.
  • FIG 5 illustrates a perspective view of a domestic appliance 30 including the locking device according to the present invention.
  • the domestic appliance 30 comprises a cabinet 32 and a door 34.
  • the cabinet 32 includes an open front side closable by the door 34.
  • the door 34 is connected to the cabinet 32 via a hinge. In this example, the door 34 is pivoting at the cabinet 32 around a vertical axis.
  • the domestic appliance 30 may be a cooking oven, a refrigerator or the like.
  • the locking device is mounted in an inner column of the door 34.
  • the inner column is made of plastics.
  • FIG 6 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention.
  • the state of the locking device in FIG 6 corresponds with an open door 34 of the domestic appliance 30.
  • the hook element 16 is outside of the locking device.
  • the pin element 28 attached at the wheel element 18 is inserted in the path 26 of the path element 22.
  • FIG 7 to FIG 12 shows the states of the locking device during the closing of the door 34.
  • FIG 7 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a first step of closing said locking device.
  • FIG 8 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a second step of closing said locking device.
  • the hook element 16 has been moved a little bit into the recess 14, while the wheel element 18 has rotated counter-clockwise.
  • the pin element 28 has followed a little bit the path 26 of the path element 22.
  • FIG 9 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a third step of closing said locking device.
  • the force of the second torsion spring element 24 effects the counter-clockwise rotation of the path element 22.
  • the force of the second torsion spring element 24 and the shape of the path 22 bring the locking device into the closed state.
  • FIGS 10 to FIG 12 show the further process of closing the locking device.
  • FIG 10 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a fourth step of closing said locking device.
  • FIG 11 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a fifth step of closing said locking device.
  • FIG 12 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a sixth step of closing said locking device. In this position the locking device is blocked.
  • FIG 13 to FIG 20 shows the states of the locking device during the opening of the door 34.
  • the user For opening the door 34 the user has to push on the door 34.
  • FIG 13 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a first step of opening said locking device.
  • FIG 14 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a second step of opening said locking device.
  • the pin element 28 takes a start position. This movement is guaranteed by the first torsion spring element 20. In this step, the hook element 16 is at most inserted in the recess 14.
  • FIG 15 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a third step of opening said locking device.
  • the force of the first torsion spring element 20 rotates the wheel element 18 clockwise.
  • the pin element 28 moves within the path 22 of the path element 22.
  • the path element 22 rotates until it is blocked by a mechanical lock element 38. Then, the path element 22 translates vertically controlled by a cam 40.
  • FIG 16 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a fourth step of opening said locking device.
  • FIG 16 shows that the movements of the cam 40 and the pin element 28 are controlled by long slots formed in the main casing 10.
  • FIG 17 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a fifth step of opening said locking device.
  • the door 34 is open.
  • the pin element 28 returns to a position within the path 26 by the force of the second torsion spring element 24.
  • FIG 18 illustrates an exploded perspective side view of the locking device according to the first embodiment of the present invention during a sixth step of opening said locking device.
  • FIG 19 illustrates a perspective rear view of the locking device according to a second embodiment of the present invention.
  • the second embodiment of the locking device has substantially the same structure as the first embodiment.
  • the second embodiment of the locking device includes an extension spring element 36 instead of the second torsion spring element 24.
  • the extension spring element 36 allows very constant properties during tits life cycle.
  • the locking device allows a push-push system for opening and closing the door 34.
  • a handle is not required, so that the door 34 may have a flat form.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)
  • Drawers Of Furniture (AREA)

Claims (15)

  1. Dispositif de verrouillage pour un appareil domestique, ledit dispositif de verrouillage est conçu pour ouvrir et fermer une porte (34) ou un tiroir au niveau d'une carrosserie (32) de l'appareil domestique et comprend :
    - au moins un boîtier (10, 12),
    - un élément de roue (18) pouvant tourner dans le boîtier (10) autour d'un axe de rotation,
    - un premier élément de ressort (20) effectuant une rotation de l'élément de roue (18) dans un sens de rotation prédéterminé,
    - au moins un élément de broche allongé (28) fixé à l'élément de roue (18), dans lequel l'axe longitudinal dudit élément de broche (28) s'étend de façon parallèle à l'axe de rotation de l'élément de roue (18),
    - un élément de trajet (22) façonné sous la forme d'un disque et disposé parallèle à l'élément de roue (18), dans lequel un côté de grande surface de l'élément de trajet (22) comprend un trajet (26) pour recevoir et guider une extrémité ouverte de l'élément de broche (28),
    - un second élément de ressort (24 ; 36) effectuant une rotation de l'élément de trajet (22) dans le sens de rotation prédéterminé et/ou un déplacement de l'élément de trajet (22), et
    - au moins un élément de crochet (16) inséré, ou pouvant être inséré, dans un renfoncement (14) du boîtier (10, 12) et mis en prise, ou pouvant être mis en prise, avec l'élément de roue (18), dans lequel
    - l'élément de crochet (16) peut être mis en prise avec l'élément de roue (18) en poussant le boîtier (10, 12) vers l'élément de crochet (16), et dans lequel
    - l'élément de crochet (16) peut être détaché de l'élément de roue (18) et du renfoncement (14) en poussant le boîtier (10, 12) vers l'élément de crochet (16).
  2. Dispositif de verrouillage selon la revendication 1,
    caractérisé en ce que
    le boîtier (10, 12) est subdivisé en un boîtier principal (10) et un boîtier latéral (12).
  3. Dispositif de verrouillage selon la revendication 2,
    caractérisé en ce que
    le boîtier principal (10) et le boîtier latéral (12) sont raccordés, ou peuvent être raccordés, par au moins un mécanisme d'encliquetage.
  4. Dispositif de verrouillage selon la revendication 2 ou 3,
    caractérisé en ce que
    l'élément de roue (18) est disposé dans le boîtier principal (10).
  5. Dispositif de verrouillage selon l'une quelconque des revendications 2 à 4,
    caractérisé en ce que
    l'élément de trajet (22) est disposé dans le boîtier latéral (12).
  6. Dispositif de verrouillage selon l'une quelconque des revendications 2 à 5,
    caractérisé en ce que
    le premier élément de ressort (20) est disposé dans le boîtier principal (10).
  7. Dispositif de verrouillage selon l'une quelconque des revendications 2 à 6,
    caractérisé en ce que
    le second élément de ressort (20 ; 36) est disposé dans le boîtier latéral (12).
  8. Dispositif de verrouillage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le premier élément de ressort est un élément de ressort de torsion (20).
  9. Dispositif de verrouillage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le second élément de ressort est un élément de ressort de torsion (24).
  10. Dispositif de verrouillage selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que
    le second élément de ressort est un élément de ressort d'extension (36).
  11. Dispositif de verrouillage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    le boîtier (10, 12), le boîtier principal (10) et/ou le boîtier latéral (12) sont réalisés en plastique.
  12. Dispositif de verrouillage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la rotation et/ou le déplacement de l'élément de trajet (22) sont limités par un élément de verrouillage mécanique (38).
  13. Dispositif de verrouillage selon l'une quelconque des revendications précédentes,
    caractérisé en ce que
    la rotation et/ou le déplacement de l'élément de trajet (22) sont guidés par une came (40).
  14. Appareil domestique comprenant une carrosserie (32), une porte (34) pour fermer une ouverture de ladite carrosserie (32) et/ou un tiroir inséré, ou pouvant être inséré, dans la carrosserie (32) et un dispositif de verrouillage pour verrouiller la porte (34) et/ou le tiroir, respectivement, au niveau de la carrosserie (32),
    caractérisé en ce que
    l'appareil domestique comprend le dispositif de verrouillage selon l'une quelconque des revendications 1 à 13.
  15. Appareil domestique selon la revendication 14,
    caractérisé en ce que
    le dispositif de verrouillage est monté à l'intérieur d'une colonne de la porte (34).
EP13180805.7A 2013-08-19 2013-08-19 Dispositif de verrouillage et appareil ménager Active EP2840208B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13180805.7A EP2840208B1 (fr) 2013-08-19 2013-08-19 Dispositif de verrouillage et appareil ménager

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13180805.7A EP2840208B1 (fr) 2013-08-19 2013-08-19 Dispositif de verrouillage et appareil ménager

Publications (2)

Publication Number Publication Date
EP2840208A1 EP2840208A1 (fr) 2015-02-25
EP2840208B1 true EP2840208B1 (fr) 2018-10-10

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EP (1) EP2840208B1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US12031361B2 (en) 2022-06-20 2024-07-09 HTI Technology & Industries, Inc. Push-to-open/signal-to-open appliance door latching system with an integrated locking device

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CN104746982B (zh) * 2015-03-26 2016-08-31 芜湖美的洗涤电器制造有限公司 洗碗机门锁机构及洗碗机
KR102401639B1 (ko) 2015-06-30 2022-05-25 엘지전자 주식회사 의류처리장치
US11236911B2 (en) * 2018-01-18 2022-02-01 Hti Technology And Industries, Inc. Push-to-open/signal-to-open appliance door latching system with an integrated locking device
JP7043359B2 (ja) * 2018-07-06 2022-03-29 シャープ株式会社 扉駆動装置および冷蔵庫
DE102021124629B4 (de) * 2021-09-23 2023-07-06 Titus D.O.O. Dekani Verschlussvorrichtung, insbesondere für einen Wohnwagen oder Wohnmobil

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EP1785063B1 (fr) * 2005-11-10 2012-03-14 Grass GmbH Dispositif d'ouverture et de fermeture pour une partie de meuble mobile ainsi que ladite partie de meuble
WO2009116094A1 (fr) 2008-03-18 2009-09-24 Filippi S.R.L. Four avec porte à charnière inférieure sans poignée
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12031361B2 (en) 2022-06-20 2024-07-09 HTI Technology & Industries, Inc. Push-to-open/signal-to-open appliance door latching system with an integrated locking device

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Publication number Publication date
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