EP0728438B1 - Türverschlussvorrichtung für Waschmaschinen - Google Patents

Türverschlussvorrichtung für Waschmaschinen Download PDF

Info

Publication number
EP0728438B1
EP0728438B1 EP19960102225 EP96102225A EP0728438B1 EP 0728438 B1 EP0728438 B1 EP 0728438B1 EP 19960102225 EP19960102225 EP 19960102225 EP 96102225 A EP96102225 A EP 96102225A EP 0728438 B1 EP0728438 B1 EP 0728438B1
Authority
EP
European Patent Office
Prior art keywords
door
nib
machine
end portion
pin element
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.)
Expired - Lifetime
Application number
EP19960102225
Other languages
English (en)
French (fr)
Other versions
EP0728438A1 (de
Inventor
Fabio Zardini
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.)
Dihr International SRL
Original Assignee
Dihr International SRL
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 Dihr International SRL filed Critical Dihr International SRL
Publication of EP0728438A1 publication Critical patent/EP0728438A1/de
Application granted granted Critical
Publication of EP0728438B1 publication Critical patent/EP0728438B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to a washing machine, in particular a dish-washing machine for industrial uses, provided with a door locking device in accordance to claim 1.
  • a clothes washing machine provided with a washing tub accessible through a door, which is movable from an opened to a closed position thereof and can actuate an electric switch connect to the machine electric component parts, so as to switch off and on these component parts respectively when the door is opened or closed.
  • the machine is also provided with a door locking device associated to the electric switch and constituted by a plate mounted in the door and a lock bolt urged by a spring and penectrating in a cavity of the plate, when the door is closed, and permitting the door to be opened when the machine does not operate, and constituted by a pin connected to a bimetallic switch connected to the electric switch and moved by such bimetallic switch from a position in which it does not affect the movement of the lock bolt, when the electric switch is off and the door is opened, to a position in which it affects the movement of the lock bolt, when the electric switch is on and the door is closed, so as to prevent with safety the movement of such lock bolt and keep the door locked during the machine operation.
  • a door locking device associated to the electric switch and constituted by a plate mounted in the door and a lock bolt urged by a spring and penectrating in a cavity of the plate, when the door is closed, and permitting the door to be opened when the machine does not operate
  • a dishwashing apparatus comprising a door in which a fixed bolt is provided and co-operates with a strike plate on a cabinet, against which the door seats in a closed position, to latch the door in the closed position.
  • the strike plate in addition to latching the door, activates an electric switch fixedly mounted in the door and connected to the electric component parts of the machine, so as to switch it off and on respectively when the door is opened and closed.
  • the strike plate is released by an associated pivotable release element, so as to permit the door to be opened.
  • a dishwasher comprising a door and a latch structure for releasably locking the door to a cabinet including an electric switch, connected to the electric component parts of the machine, for permitting these component parts to be operated only when the door is in the latched closed position.
  • the switch is hidden within the door behind the latch bolt so as to be operated substantially only by the strike which has a preselected configuration to effect the latching and switch operating operations.
  • the bolt may be operated manually to release the door from the latched condition, and an improved pivotally mounted operator is provided for effecting the desidered unlatching movement of the bolt.
  • the present invention relates to a washing machine provided with a device for locking the door moved into its closed position during the machine operation, which is made with the component parts of DE-A-2106272, forming the preamble of claim 1, which however are realized and operate in a manner different than those disclosed by all the above references, and can be assembled easily and quickly on the machine.
  • a washing machine in particular dish-washing machine for commercial use is shown, which is provided with a front door 6 for the access to the washing tank 7 of this machine, in which the dishes are introduced and extracted respectively prior and after the carrying out of the relative washing programs, and with a door locking device.
  • This locking device is substantially constituted by a casing shaped as a plate 8, having almost rectangular form and reduced thickness, made of plastic material of conventional type, which is fitted externally onto the horizontal upper wall 9 of the washing tank 7 and in a corresponding inner cavity 10 of the washing machine closing panel 11, which is applied above such upper wall 9, wherein the cavity is provided on the vertical front wall 12 of such tank, which in turn is provided with the through opening 13 for the access to the tank inside, wherein the door 6 bears against the outer surface of such wall when moved on the closed position thereof, thereby providing also to close the through opening 13.
  • the junction of the plate shaped casing 8 with the tank upper wall 9 is performed by means of screws 14 or the like, which are inserted through corresponding side holes 15 of the plate shaped casing 8 and screwed onto such an upper wall.
  • the plate shaped casing 8 extends in a longitudinal direction up to a position above the door 6, when this latter is moved on the closed position thereof, and is also provided with a stud 16 arranged transversally thereto and housed into corresponding seats 17 and 18 of the same plate shaped casing, which are provided on the end zone of the plate shaped casing which is opposite to that situated at the level of the door 6.
  • the nib 19 is further associated to at least a compression spring 25 or similar resilient means, housed on the terminal zone of the plate shaped casing 8 provided in correspondence of the door 6, and the end portions of which are laid on and fixed against the corresponding zones of upper surface of the nib 19 and inner surface of the washing machine closing panel 11, thereby stressing in compression such nib against the plate shaped casing 8, and thus keeping the collar 21 thereof always introduced through the corresponding through opening 23 of the same casing.
  • a compression spring 25 or similar resilient means housed on the terminal zone of the plate shaped casing 8 provided in correspondence of the door 6, and the end portions of which are laid on and fixed against the corresponding zones of upper surface of the nib 19 and inner surface of the washing machine closing panel 11, thereby stressing in compression such nib against the plate shaped casing 8, and thus keeping the collar 21 thereof always introduced through the corresponding through opening 23 of the same casing.
  • the feeler pin element 20 is associated to at least a torsion spring 26 or similar resilient means wound on the transversal stud 16, which urges it in such a way as to keep it steadily pressed against the nib 19 and with the bent portion 24 thereof penetrating through the through hole 22 of the collar 21 of the plate shaped casing 8.
  • the end portion 27 of such feeler pin element which is articulated on the stud 16 is able to act against a movable control push button 28 of an electric microswitch 29 or other suitable switch means of per se known type, mounted in the inner cavity 10 of the washing machine closing panel 11, on a position above the plate shaped casing 8, and connected operatively in the electric circuit of this machine, together with the remaining circuit component parts thereof (not shown), in such a way that such articulated end portion 27 can operate the microswitch 29 from the one to the other one of its switched off and on positions of such electric circuit, thereby causing the machine to be stopped and operated, in the conditions in which the feeler pin element 20 is respectively kept on its operative position compressed against the nib 19 or moved on the other operative position thereof, raised with respect to the same nib, by rotating slightly around the stud 16.
  • the machine door 6 is provided with a recess 30 on its upper surface, situated on the zone of the closing panel 11 in which the collar 21 and the feeler pin element 20 projected downwards are situated, which recess is adequately shaped in order to be able to house both such collar and feeler pin element when the door 6 is moved in the closed position thereof.
  • the recess 30 has a profile constituted by two walls 31 and 32 which are rectilinear for the entire lenght thereof and inclined symmetrically in the direction of width thereof, by converging to each other in a recessed zone 33 at the centre of the door 6, in which a vertical projected part 34 is provided, which is directed upward for the entire height of the recess and provided in correspondence of the feeler pin element 20, said walls of the recess 30 being adapted to house the corresponding inclined walls 35 and 36 of the projected collar 21.
  • this device is of a simple and useful type and may be also fitted easily and quickly on a determinate position of the machine, with few operations, and is able to ensure the machine stop and operation in a safe and reliable manner, by acting on the door thereof, and moving such door on the respective closed and opened positions thereof, in which circumstance both the door locking bolt and the machine control microswitch are actuated as described above.

Landscapes

  • Washing And Drying Of Tableware (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Main Body Construction Of Washing Machines And Laundry Dryers (AREA)

Claims (3)

  1. Waschmaschine, insbesondere Geschirrspülmaschine, für industrielle Zwecke, mit einem aus einer geöffneten Stellung in eine geschlossene Stellung beweglichen Vordertür (6) zugänglichen Waschtank (7), wobei die Tür eine Türverschlußvorrichtung aufweist, die durch ein als Platte (8) geformtes Gehäuse gebildet ist, welches an dem Waschtank (7) oberhalb der Tür (6) angebracht ist und ferner durch Schalteinrichtungen (29), die in die elektrische Schaltung der Maschine eingesetzt sind, und aus einer abgeschalteten Position in eine eingeschaltete Position betätigbar sind, um den Betrieb der Maschine zu verhindern oder zuzulassen und ferner durch erste und zweite Steuereinrichtungen (19, 20), die mit der Tür (6) zusammenarbeiten, um die Verschiebung derselben aus der geöffneten in die geschlossene Position und umgekehrt zu ermöglichen, und die gleichzeitig mit den Schaltvorrichtungen (29) derart zusammenarbeiten, daß sie diese in der eingeschalteten und der ausgeschalteten Position derselben betätigen, wenn die Tür (6) in die geöffnete bzw. geschlossene Position derselben bewegt wird, wobei die Maschine dadurch gekennzeichnet ist, daß die erste Steuereinrichtung mindestens einen Haken (19) und die zweite Steuereinrichtung mindestens ein Fühlerstiftelement (20) aufweist, welches über dem Haken (19) angeordnet und an einem Endabschnitt (27) mit dem dazugehörigen Endabschnitt des Hakens (19) an dem Gehäuse (8) verschwenkbar und mit Federmitteln (25, 26) verbunden ist, welche derart wirksam sind, daß sie in Druckrichtung gegen das Gehäuse (8) und den Haken (19) gespannt sind, wobei der Haken (19) an seinem anderen Endabschnitt mit einem Kragen (21) geformt ist, welcher nahezu orthogonal gebogen und nach unten gerichtet ist, ein durchgehendes Loch (22) bildet, und durch eine entsprechende durchgehende.Öffnung (23) des Gehäuses (8) vorsteht, um dadurch über die Unterkante des Gehäuses (8) vorzustehen, wobei das Fühlerstiftelement (20) an seinem anderen Endabschnitt mit einem gebogenen Abschnitt (24) versehen ist, welcher nach unten gerichtet ist, das durchgehende Loch (22) des Kragens (21) durchdringt und über die Unterkante desselben vorsteht und ferner aus einer abgesenkten Position in Berührung mit dem Haken (19) in eine bezüglich desselben angehobene Position verschiebbar ist, indem sein einer Endabschnitt (27) die Schaltmittel (29) in eine der beiden Betriebsstellungen betätigt, wenn der Kragen (21) und das Fühlerstiftelement (20) mit einer Ausnehmung (20), die auf der obenliegenden Fläche der Maschinentür (6) angeordnet ist, nicht zusammenfallen bzw. zusammenfallen, wenn letztere in der geöffneten oder geschlossenen Stellung derselben bewegt wird.
  2. Waschmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Federmittel durch mindestens eine Druckfeder (25) und eine Torsionsfeder (26) gebildet sind.
  3. Waschmaschine nach Anspruch 1, dadurch gekennzeichnet, daß die Ausnehmung (30) mit einer rückspringenden Zone (33) und mindestens einem senkrecht vorstehenden Teil (34) versehen ist, welcher dem Fühlerstiftelement (20) entspricht.
EP19960102225 1995-02-22 1996-02-15 Türverschlussvorrichtung für Waschmaschinen Expired - Lifetime EP0728438B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPN950012 IT238838Y1 (it) 1995-02-22 1995-02-22 Dispositivo di chiusura della porta di macchine lavatrici
ITPN950012U 1995-02-22

Publications (2)

Publication Number Publication Date
EP0728438A1 EP0728438A1 (de) 1996-08-28
EP0728438B1 true EP0728438B1 (de) 2000-05-03

Family

ID=11394996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19960102225 Expired - Lifetime EP0728438B1 (de) 1995-02-22 1996-02-15 Türverschlussvorrichtung für Waschmaschinen

Country Status (5)

Country Link
EP (1) EP0728438B1 (de)
DE (1) DE69608009T2 (de)
ES (1) ES2147318T3 (de)
IT (1) IT238838Y1 (de)
PT (1) PT728438E (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101991395A (zh) * 2009-08-25 2011-03-30 Bsh博世和西门子家用器具有限公司 洗碗机、尤其家用洗碗机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006237307B2 (en) * 2005-04-19 2011-01-20 Bsh Hausgerate Gmbh Lock for a domestic appliance
CN109907712A (zh) * 2019-02-22 2019-06-21 青岛海尔洗碗机有限公司 一种洗碗机的门体和洗碗机

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2106272A1 (de) * 1971-02-10 1972-08-24 Licentia Gmbh Elektrische Beschickungstürverriegelung für Wasch- und Schleudermaschinen
US3997201A (en) * 1975-07-09 1976-12-14 Whirlpool Corporation Appliance door latch
US4776620A (en) * 1986-09-29 1988-10-11 Whirlpool Corporation Door latch for dishwasher

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101991395A (zh) * 2009-08-25 2011-03-30 Bsh博世和西门子家用器具有限公司 洗碗机、尤其家用洗碗机

Also Published As

Publication number Publication date
EP0728438A1 (de) 1996-08-28
ES2147318T3 (es) 2000-09-01
ITPN950012U1 (it) 1996-08-22
DE69608009T2 (de) 2000-11-16
IT238838Y1 (it) 2000-11-15
PT728438E (pt) 2000-10-31
ITPN950012V0 (it) 1995-02-22
DE69608009D1 (de) 2000-06-08

Similar Documents

Publication Publication Date Title
US8377230B2 (en) Household appliance comprising a locking device
RU2506361C2 (ru) Стиральная машина
US3328062A (en) Latch mechanism
US4623179A (en) Door latch for appliance
KR101467778B1 (ko) 의류처리장치의 도어스위치어셈블리
KR101053624B1 (ko) 의류처리장치
CA1235780A (en) Control system for an access door
CA1050088A (en) Appliance door latch and switch operated thereby
US6743986B2 (en) Door lock
EP0728438B1 (de) Türverschlussvorrichtung für Waschmaschinen
US3260813A (en) Door latching and locking device
CA1075281A (en) Door latch control means for a dishwasher
EP2367997B1 (de) Türverriegelungsvorrichtung, insbesondere für haushaltsgeräte
KR20060047167A (ko) 식기 세척기
US3997751A (en) Access door latch mechanism
EP0669098A1 (de) Waschmaschine, insbesondere Geschirrspülmaschine, mit dekorativem Frontabdeckpaneel
KR100809357B1 (ko) 가전제품의 도어락 장치
KR100476960B1 (ko) 세탁기의 뚜껑 잠금장치
US3569646A (en) Lid latch and switch operating mechanism
EP0331643A2 (de) Betätigungsanordnung zum Öffnen der Zugangstür einer Waschmaschine oder dergleichen
CN218117492U (zh) 一种用于家用电器的门锁结构及家用电器
US3944767A (en) Dishwashing machine closure safety switch device
GB2031053A (en) Improvements in or Relating to Interlock Mechanism
US3966246A (en) Door latch for appliances and the like
CN115234087B (zh) 一种用于家用电器的门锁结构及家用电器

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR PT

17P Request for examination filed

Effective date: 19970224

17Q First examination report despatched

Effective date: 19980703

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR PT

REF Corresponds to:

Ref document number: 69608009

Country of ref document: DE

Date of ref document: 20000608

ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2147318

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20000802

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20080226

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: PT

Payment date: 20080215

Year of fee payment: 13

Ref country code: DE

Payment date: 20080310

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20080215

Year of fee payment: 13

REG Reference to a national code

Ref country code: PT

Ref legal event code: MM4A

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20090817

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090817

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20091030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090901

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20090216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090302

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090216