EP2690366A1 - Gerät mit einem Verriegelungsmechanismus - Google Patents

Gerät mit einem Verriegelungsmechanismus Download PDF

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Publication number
EP2690366A1
EP2690366A1 EP12177992.0A EP12177992A EP2690366A1 EP 2690366 A1 EP2690366 A1 EP 2690366A1 EP 12177992 A EP12177992 A EP 12177992A EP 2690366 A1 EP2690366 A1 EP 2690366A1
Authority
EP
European Patent Office
Prior art keywords
door
catch
appliance according
activator
lock device
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Withdrawn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
EP12177992.0A
Other languages
English (en)
French (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 Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
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 Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP12177992.0A priority Critical patent/EP2690366A1/de
Publication of EP2690366A1 publication Critical patent/EP2690366A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B65/00—Locks or fastenings for special use
    • E05B65/0014—Locks or fastenings for special use to prevent opening by children
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00—Fastening devices with bolts moving rectilinearly
    • E05C1/08—Fastening devices with bolts moving rectilinearly with latching action
    • E05C1/12—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C1/14—Fastening devices with bolts moving rectilinearly with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the handle or member moving essentially towards or away from the plane of the wing or frame
    • 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
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/0052—Locks mounted on the "frame" cooperating with means on the "wing"

Definitions

  • the invention relates to an appliance, especially to a domestic appliance, comprising a housing element, wherein a door is arranged at the housing element, which door can be positioned in a closed position and in an opened position, wherein a child lock device is arranged which can prevent the opening of the door when the door is in its closed position.
  • Domestic appliances especially domestic ovens are known in the art which are equipped with child lock systems to prevent that the oven door can be opened by a young child.
  • US 3 498 285 A1 discloses a stove latch system which has multiple locking pins which are engaged upon the movement of one handle. The handle has to be moved sideways whilst the door has to be pulled forwards for opening.
  • a locking system comprising a moving pin in a latch for a dishwasher door.
  • the handle has to be pushed upwards whilst the door has to be pulled forwards for opening.
  • an object of the present invention to propose an appliance of the generic type with a child lock device which has a higher security against unauthorized opening of the door when the lock device is activated. Furthermore, the activation and disengagement of the lock device should be possible in a better ergonomic manner. Also it is aimed to design the lock device in such a way that it becomes easily possible to bring the lock device in a permanently disengaged status; on the other hand it should be also possible to again activate the lock device if required.
  • the translational direction of the catch element is identical with the vertical direction. Also, it is preferred that the translational direction of the activator element is identical with the horizontal direction.
  • the catch element is preferably biased into the direction in which it is in engagement with the hook element by spring means.
  • the spring means are preferably a compression spring.
  • the contact element is designed as a crank element which has a contact section with a substantial arcuated, preferably circular, form seen in a direction which is perpendicular to the translational direction of the movement of the catch element and is perpendicular to the translational direction of the movement of the activator element.
  • the push-push system has a guide which moves the rack element until it reaches the locking position. In the locking position it is possible to remove the activator element by pulling it out.
  • the hook element and/or the catch element have preferably slanted side faces to allow the easy closing of the door when the catch element is in its position to prevent the opening of the door.
  • the door can be arranged pivotable at the housing element or it can be arranged translationally movable relatively to the housing element.
  • the proposed appliance is preferably an oven, especially a domestic oven.
  • the proposed child lock system provides much stronger locking capabilities as the pre-known systems.
  • the described solution has a pin (catch element), which is moved preferably in a vertical direction, which establishes the locking function through a spring and which establishes the opening function through a gear wheel.
  • the pin engages with the door, which leads to a significant larger contact surface, which in turn is able to withstand higher pull out forces of the locked door.
  • a specific feature of the proposed child lock device it that a pin (catch element) is provided which moves vertically for locking the door.
  • the activation of the device is preferably done by a horizontal movement of the activator element.
  • a compression spring is housed inside the pin and is used to exert a force of impediment to unlock the system.
  • the structure of the door has a "tooth" (hook element) which is - in the activated status - in contact with the pin, this condition prevents the opening of the door. When the door is closed the pin at the bottom is in contact with the "tooth" present on the structure of the door. In this condition the door is locked.
  • the pin After pushing the activating element (activator) the pin moves upwards and the door can be opened regularly. When the force on the activator stops the pin returns to the operating position due to the force of the spring action. When the door is open the pin is in its normal position.
  • the shape of the "tooth" and the pin are designed - with slanted surfaces - in order to activate the system in an automatic way at the moment when the user is closing the door.
  • the proposed device has also a permanently disabled position.
  • the child lock device can here be arranged in a passive status by pushing the activator to an end position. This passive status is reversible and can be reversed easily by again pushing the activator.
  • the child lock device is located inside the structural components and the user could see on the activating element.
  • the vertical movement of the pin brings the advantage of having a larger contact surface between the pin and the "tooth” (hook element) on the inner door compared to pre-known solutions. This allows to increase the security for locking the door. That is, the vertical movement of the pin produces multiple benefits such as greater surface contact between the pin and the "tooth” on the structural door and small working volume of the pin during normal operation.
  • the proposed system of gears allows an easy and cost efficient realization. Also, it is beneficially that this gear system is less cumbersome to have a vertical translation of the pin actuated by the pressure on the activator element.
  • the volume occupied by the pin between the locking und unlocking position is the minimum possible as the pin has a vertical movement. So, interference problems with structural parts can be better avoided.
  • the proposed solution has a high degree of robustness as well as constancy in time of performance, i. e. the required components maintain their function during a high number of operation cycles.
  • the required distance in the translational direction of the activator element is quite small, what improves the compactness of the lock device. So, the volume of working space is minimal which is required by the locking system whilst a quite big engagement surface is given between the pin and the "tooth”.
  • the permanently deactivation function is very beneficial. This allows to disable the device until the time when the user needs it without disassembling parts. It is possible to deactivate the locking system just with only a small movement of the activator element.
  • the child lock device has thus a locking position which allows to disable the device until the user needs to use it again without disassembling of any parts. Once the child lock device is disabled the activator element can be removed.
  • the proposed device meets all the child lock specification due to its high robustness. Over the time a high degree of steadiness of the compression of the spring forces is given during the lifetime of the system, i. e. a constancy on performance is ensured.
  • a domestic appliance 1 being a domestic oven is shown.
  • the appliance 1 has a housing element 2 and a door 3.
  • the door 3 is here shown in its closed position C.
  • a child lock device 4 is arranged in the housing 2, that is the door 3 cannot be opened unless the child lock device is in the locked position as shown in Fig. 1 .
  • the child lock device 4 comprises a hook element 5 ("tooth") which is arranged at the door 3. Furthermore, the device has a catch element 6 which can be moved in a translational direction T which is identical with the vertical direction V. When the catch element 6 is in the depicted position it hinders - due to the hook element 5 an opening of the door 3.
  • the child lock device 4 has furthermore an activator element 7 which is supported in the housing 2 and which can be moved forth and back in a translational direction U which is identical with the horizontal direction H.
  • the activator element 7 is removably connected with a rack element 10 which has a gearing 11 and which is part of transmission means 8 by which the horizontal movement in the direction U is transmitted onto the catch element 6 to move it in the vertical direction T.
  • the rack element 10 is meshing with the gearing of a gear wheel 12 which is rotatable arranged in the housing element 2.
  • a lever element 13 being an appendage of the gear wheel 12 extends substantially radially from the gear wheel 12. Thus, if the gear wheel 12 rotates the lever element 13 moves upwards.
  • the lever element 13 When doing so the lever element 13 is in contact with a contact element 14 which is an elastic spring element. It has a contact section 15 (see Fig. 2 ) which has a substantial circular shape.
  • the activator element 7 is moved for opening of the door into the direction of the arrow U in Fig. 1 and Fig. 2 .
  • the corresponding translational movement of the rack element 10 causes a rotary movement of the gear wheel 12 counter-clockwise so that the lever element 13 is moving upwards and presses onto the contact element 14 and more specifically on its contact section 15.
  • the catch element 6 is moved upwards and the door 3 can be opened as soon as the catch element 6 has reached the respective height.
  • Fig. 4 is can be seen again how the elements are positioned when the child lock device 4 is in the locking position.
  • the door 3 with the hook element 5 is depicted. It can be seen that the door 3 cannot be opened due to the position of the catch element 6.
  • Fig. 5 it can be seen that the activator element 7 is pressed in the direction of the arrow U so that the transmission means 8 have lifted the catch element 6 into the direction of arrow T. Consequently, the child lock device 4 is now in its opened position O and the door 3 can be opened.
  • Fig. 6 it is shown how the door 3 is closed again when the child lock device 4 is in the closed position. Due to slanted side faces 17 and 18 of the hook element 5 and the catch element 6 (see for example Fig. 4 ) the door 3 can be closed in spite of the fact that the catch element 6 is in the lower (closed) position. When the door 3 is closed and the hook element 5 thus passes the catch element 6, the catch element 6 is lifted accordingly to allow the hook element 5 to pass so that the door 3 can reach its complete closed position.
  • Fig. 7 and Fig. 8 a further beneficial feature of the proposed child lock device is illustrated.
  • the figures show the assembled device.
  • the rack element 10 there is a push-push track with a guide that slides inside the locking device.
  • the child lock device is deactivated in this position as it is depicted in Fig. 7 and Fig. 8 .
  • the activator element 7 needs only to be pushed in the direction A according to Fig. 8 . Then, the transmission means 8 bring back the elements in the position in which the child lock device 4 is activated again.
  • a track push-push system 16 is shown in Fig. 7 . which also comprises a guide element 19.
  • Fig. 11 the activator element 7 is shown which is still at the appliance 1. According to Fig. 12 the activator element 7 is removed. The child lock system is passive now.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Lock And Its Accessories (AREA)
EP12177992.0A 2012-07-26 2012-07-26 Gerät mit einem Verriegelungsmechanismus Withdrawn EP2690366A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP12177992.0A EP2690366A1 (de) 2012-07-26 2012-07-26 Gerät mit einem Verriegelungsmechanismus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12177992.0A EP2690366A1 (de) 2012-07-26 2012-07-26 Gerät mit einem Verriegelungsmechanismus

Publications (1)

Publication Number Publication Date
EP2690366A1 true EP2690366A1 (de) 2014-01-29

Family

ID=46578932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12177992.0A Withdrawn EP2690366A1 (de) 2012-07-26 2012-07-26 Gerät mit einem Verriegelungsmechanismus

Country Status (1)

Country Link
EP (1) EP2690366A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014010390U1 (de) 2014-06-04 2015-06-30 Meiko Maschinenbau Gmbh & Co. Kg Vorrichtung zum Verschließen eines Behandlungsraums einer Geschirrspülmaschine
WO2016101977A1 (en) * 2014-12-22 2016-06-30 Arcelik Anonim Sirketi Household appliance with a child safety facility
CN112437855A (zh) * 2018-08-02 2021-03-02 伊莱克斯家用电器股份公司 用于器具的门锁系统
CN113463984A (zh) * 2020-03-31 2021-10-01 宁波方太厨具有限公司 一种用于电器的门锁结构及应用有该门锁结构的清洗机
WO2023129051A1 (en) * 2021-12-27 2023-07-06 Vestel Beyaz Esya Sanayi Ve Ticaret Anonim Sirketi A mechanical child lock and a household appliance comprising the same

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431105A (en) * 1945-10-19 1947-11-18 Gaylord A Brinson Lock and latch
US3328062A (en) 1965-07-26 1967-06-27 Hobart Mfg Co Latch mechanism
US3498285A (en) 1968-06-27 1970-03-03 Glenwood Range Co Stove latch
DE2444546A1 (de) * 1973-10-31 1975-05-07 Electrolux Ab Verriegelungsmechanismus fuer tueren und dgl.
US3997201A (en) * 1975-07-09 1976-12-14 Whirlpool Corporation Appliance door latch
GB2207180A (en) * 1987-07-06 1989-01-25 Gold Star Co Door latch assembly
US20020079709A1 (en) 2000-12-22 2002-06-27 Marks Larry D. Door latch for a dishwasher
EP1722166A1 (de) * 2004-03-05 2006-11-15 Matsushita Electric Industrial Co., Ltd. Türöffnungs-/-schliessteil für heizvorrichtung
US7451628B1 (en) * 2007-05-23 2008-11-18 Hyundai Motor Company Apparatus for opening and closing glovebox for automobile

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2431105A (en) * 1945-10-19 1947-11-18 Gaylord A Brinson Lock and latch
US3328062A (en) 1965-07-26 1967-06-27 Hobart Mfg Co Latch mechanism
US3498285A (en) 1968-06-27 1970-03-03 Glenwood Range Co Stove latch
DE2444546A1 (de) * 1973-10-31 1975-05-07 Electrolux Ab Verriegelungsmechanismus fuer tueren und dgl.
US3997201A (en) * 1975-07-09 1976-12-14 Whirlpool Corporation Appliance door latch
GB2207180A (en) * 1987-07-06 1989-01-25 Gold Star Co Door latch assembly
US20020079709A1 (en) 2000-12-22 2002-06-27 Marks Larry D. Door latch for a dishwasher
EP1722166A1 (de) * 2004-03-05 2006-11-15 Matsushita Electric Industrial Co., Ltd. Türöffnungs-/-schliessteil für heizvorrichtung
US7451628B1 (en) * 2007-05-23 2008-11-18 Hyundai Motor Company Apparatus for opening and closing glovebox for automobile

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014010390U1 (de) 2014-06-04 2015-06-30 Meiko Maschinenbau Gmbh & Co. Kg Vorrichtung zum Verschließen eines Behandlungsraums einer Geschirrspülmaschine
DE102014210568A1 (de) 2014-06-04 2015-12-17 Meiko Maschinenbau Gmbh & Co. Kg Vorrichtung zum Verschließen eines Behandlungsraums einer Geschirrspülmaschine und Verfahren zum Betrieb einer Geschirrspülmaschine
WO2016101977A1 (en) * 2014-12-22 2016-06-30 Arcelik Anonim Sirketi Household appliance with a child safety facility
CN112437855A (zh) * 2018-08-02 2021-03-02 伊莱克斯家用电器股份公司 用于器具的门锁系统
CN112437855B (zh) * 2018-08-02 2023-06-27 伊莱克斯家用电器股份公司 用于器具的门锁系统
CN113463984A (zh) * 2020-03-31 2021-10-01 宁波方太厨具有限公司 一种用于电器的门锁结构及应用有该门锁结构的清洗机
WO2023129051A1 (en) * 2021-12-27 2023-07-06 Vestel Beyaz Esya Sanayi Ve Ticaret Anonim Sirketi A mechanical child lock and a household appliance comprising the same

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