EP2471433A1 - Vorrichtung, vorzugsweise für eine Geschirrspülmaschine, mit Türverriegelungsmechanismus - Google Patents

Vorrichtung, vorzugsweise für eine Geschirrspülmaschine, mit Türverriegelungsmechanismus Download PDF

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Publication number
EP2471433A1
EP2471433A1 EP11195484A EP11195484A EP2471433A1 EP 2471433 A1 EP2471433 A1 EP 2471433A1 EP 11195484 A EP11195484 A EP 11195484A EP 11195484 A EP11195484 A EP 11195484A EP 2471433 A1 EP2471433 A1 EP 2471433A1
Authority
EP
European Patent Office
Prior art keywords
hook element
toggle
door
locking mechanism
hook
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Withdrawn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
EP11195484A
Other languages
English (en)
French (fr)
Inventor
Gaetano Pagano
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.)
Imper SpA
Original Assignee
Imper 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 Imper SpA filed Critical Imper SpA
Publication of EP2471433A1 publication Critical patent/EP2471433A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C5/00—Fastening devices with bolts moving otherwise than only rectilinearly and only pivotally or rotatively
    • E05C2005/005—Pivoting bolts or catches being able to move in an additional direction, e.g. by sliding or by pivoting about an additional axis, in order to allow closing of the wing even if the bolt or catch is in its locked position

Definitions

  • the present invention refers to a mechanical device, in particular for a domestic dishwasher, provided with a front door for closing/opening the internal compartment.
  • said door is closed against the cabinet with a mechanism generally of toggle type that can also be operated manually to unlock the door.
  • the toggle mechanisms are capable of exerting a substantial locking force on the door, when it is in closed position, ensuring a good watertight seal of the door gasket.
  • the unlocking of the toggle mechanism is achieved by pulling the door firmly toward the open position, bringing the mechanism past a dead stop position that disengages it from a coupling pin fastened to the cabinet.
  • the opening of the door is of the so-called "tug-open” type, which has the advantage of not requiring a handle to open the door and of also allowing such opening from inside the machine, with consequent greater safety in the use of the appliance in the home.
  • toggle-latch devices (a well-known term for keying means in the technical field), which are used particularly on dishwasher doors, is well known to experts in the field and is widely disclosed, for example in Patent EP 0917 853 B1 and in Italian Patent Application PN93U000021 , which are referred to here.
  • a main objective of the present invention is to provide a closing device of the toggle-latch type, to be applied to the door, in particular for dishwashers, provided with a prong holding system that does not have the drawback described above and that is capable of allowing the resetting of the hook or holding system, even if arranged incorrectly, without requiring any particular or additional operation on the part of the user.
  • Figures 4 , 5 and 6 illustrate the operating principle of said type of toggle-latch, and in particular of the relative toggle mechanism.
  • FIGS. 4 Said figures are shown as plane cross sections on a plane orthogonal to the anchoring means, normally a connecting means 4, projecting from the cabinet itself; as is known, such a connecting means is usually made up of a semi-annular element, with a flattened or rectilinear external side, projecting from the cabinet and arranged on a horizontal plane; therefore, with the previous conventions, the planes of the cross sections of Figures 4 , 5 and 6 are vertical planes.
  • a cabinet according to the known art includes:
  • this type of toggle latch is modified and improved as follows:
  • said hook element is provided, on its sector oriented toward said connecting means 4, with an outer portion 2A:
  • said invention works essentially as follows: when the hook element 2 is normally arranged as in Fig. 7 , and thus it is suitable to receive the connecting means 4, it works exactly as in the known art and thus it receives the connecting means which pushes it so as to make it trip and move to the position of Fig. 8 .
  • the profile of the surface of said portion 2A must have an outwardly convex curved shape, as will be immediately appreciated when considering the fact that different profiles would not cause a regular rotation of the hook element 2, but instead, at a certain point of the rotation, this hook element would stop.
  • said hook element is provided with sliding pivots 30, and said support frame is provided with corresponding pivoting means, preferably pivoting seats 31.
  • the frame 1 is also provided with one or two open grooves 32 on said pivot seat 31, which have the shape of an arc of a circle centred on the axis "X".
  • the head portion of the sliding pivots 30 must be shaped as shown in Figures 12 , 13 and 14 , that is, in the shape of an extended semicircumference, the minimum transversal dimension "t" of which is substantially smaller than the width "I" of the passage along said grooves 32, but whose diameter "m” is larger than said width, so that when said head portions abut toward the groove 32 with the respective diameter, as in Figures 12 and 13 , then, logically, said head portions are prevented from entering into the respective grooves, while when they abut with their minimum dimension "t", as in Fig. 14 , then said head portions can move out of the respective grooves 31, thus allowing the rotation of the whole hook element 2 around the axis "X", including the sliding pivot pins 31.
  • a bridging element 40 is provided which substantially spans the portion of said hook element 2 at a predefined distance without touching it.
  • the width "c" of the "clearance” of said bridging element 40 from the upper edge 41 of the hollow 3 must be such as to allow, when the hook element is in the open position, a connecting means 4 that comes close to the hook without touching it, to be intercepted by said bridging element 40 so that it automatically enters into said "clearance” and is then pushed, by the effect of the obstacle represented by the same bridging element, toward the adjacent surface of the hook element 2 so that, in the end, the connecting means is automatically pushed toward and against the hollow 3 of the hook element 2, thus guaranteeing that in such circumstances too the toggle-latch closes properly when the door is closed.
  • a further improvement is provided by the fact that said hook element 2 is provided, in the rear area with respect to its engaging hollow 3, with a protruding part 50, as shown in Figures 8-10 , of such a size and position that, when the hook element 2 is in the "open” position, as shown in Fig. 7 , it comes into contact with and rests against the back face 51 of said bridging element 40, which thus also has the function of "stop" for the rotation of the hook element 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Coin-Freed Apparatuses For Hiring Articles (AREA)
EP11195484A 2010-12-28 2011-12-23 Vorrichtung, vorzugsweise für eine Geschirrspülmaschine, mit Türverriegelungsmechanismus Withdrawn EP2471433A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITPN2010A000071A IT1404209B1 (it) 2010-12-28 2010-12-28 Dispositivo, preferibilmente per lavastoviglie, con meccanismo di bloccaggio di una porta

Publications (1)

Publication Number Publication Date
EP2471433A1 true EP2471433A1 (de) 2012-07-04

Family

ID=43737222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11195484A Withdrawn EP2471433A1 (de) 2010-12-28 2011-12-23 Vorrichtung, vorzugsweise für eine Geschirrspülmaschine, mit Türverriegelungsmechanismus

Country Status (2)

Country Link
EP (1) EP2471433A1 (de)
IT (1) IT1404209B1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014039991A1 (en) * 2012-09-10 2014-03-13 Illinois Tool Works Inc. Stored energy gasket-compressing latch with reduced rotational friction
US9995067B2 (en) * 2012-10-16 2018-06-12 Bitron, S.p.A. Door-lock device
CN111759251A (zh) * 2020-06-02 2020-10-13 海信(广东)厨卫系统有限公司 洗碗机
CN113509055A (zh) * 2021-08-27 2021-10-19 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN113585888A (zh) * 2021-08-27 2021-11-02 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
US20230110413A1 (en) * 2020-03-31 2023-04-13 Serdar Plastik Sanayi Ticaret A. S. Self-resetting lock mechanism
US11819177B2 (en) * 2019-03-05 2023-11-21 Illinois Tool Works Inc. Resettable door locking device for an electric household appliance, in particular a dishwasher, and electric household appliance provided therewith

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127748B (de) * 1959-04-30 1962-04-12 Sievers Fa Carl Aufreissverschluss, insbesondere fuer Kuehlschraenke
GB942906A (en) * 1961-03-24 1963-11-27 Lewin Gunnar Erik Werner Improvements in or relating to catches for doors, shutters and the like
US3506292A (en) * 1968-06-17 1970-04-14 Gen Electric Refrigerator door latch
EP1597998A2 (de) * 2004-05-20 2005-11-23 LG Electronics, Inc. Geschirrspülmaschine und Verriegelungsvorrichtung dazu

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127748B (de) * 1959-04-30 1962-04-12 Sievers Fa Carl Aufreissverschluss, insbesondere fuer Kuehlschraenke
GB942906A (en) * 1961-03-24 1963-11-27 Lewin Gunnar Erik Werner Improvements in or relating to catches for doors, shutters and the like
US3506292A (en) * 1968-06-17 1970-04-14 Gen Electric Refrigerator door latch
EP1597998A2 (de) * 2004-05-20 2005-11-23 LG Electronics, Inc. Geschirrspülmaschine und Verriegelungsvorrichtung dazu

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014039991A1 (en) * 2012-09-10 2014-03-13 Illinois Tool Works Inc. Stored energy gasket-compressing latch with reduced rotational friction
US9370294B2 (en) 2012-09-10 2016-06-21 Illinois Tool Works Inc. Stored energy gasket-compressing latch with reduced rotational friction
US9995067B2 (en) * 2012-10-16 2018-06-12 Bitron, S.p.A. Door-lock device
US11819177B2 (en) * 2019-03-05 2023-11-21 Illinois Tool Works Inc. Resettable door locking device for an electric household appliance, in particular a dishwasher, and electric household appliance provided therewith
US20230110413A1 (en) * 2020-03-31 2023-04-13 Serdar Plastik Sanayi Ticaret A. S. Self-resetting lock mechanism
CN111759251A (zh) * 2020-06-02 2020-10-13 海信(广东)厨卫系统有限公司 洗碗机
CN113509055A (zh) * 2021-08-27 2021-10-19 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN113585888A (zh) * 2021-08-27 2021-11-02 广东美的厨房电器制造有限公司 门锁装置及烹饪器具
CN113585888B (zh) * 2021-08-27 2022-05-06 广东美的厨房电器制造有限公司 门锁装置及烹饪器具

Also Published As

Publication number Publication date
IT1404209B1 (it) 2013-11-15
ITPN20100071A1 (it) 2012-06-29

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