EP0348319A1 - Türverriegelung und Türentriegelung für Herde mit pyrolytischer Selbstreinigung - Google Patents

Türverriegelung und Türentriegelung für Herde mit pyrolytischer Selbstreinigung Download PDF

Info

Publication number
EP0348319A1
EP0348319A1 EP19890440057 EP89440057A EP0348319A1 EP 0348319 A1 EP0348319 A1 EP 0348319A1 EP 19890440057 EP19890440057 EP 19890440057 EP 89440057 A EP89440057 A EP 89440057A EP 0348319 A1 EP0348319 A1 EP 0348319A1
Authority
EP
European Patent Office
Prior art keywords
latch
cooking chamber
door locking
unlocking device
lock
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.)
Granted
Application number
EP19890440057
Other languages
English (en)
French (fr)
Other versions
EP0348319B1 (de
Inventor
René Reeb
Pierre Schaditzki
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.)
De Dietrich Equipement Menager SA
Original Assignee
DE DIETRICH EQUIPEMENT MENAGER
De Dietrich et Cie SA
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 DE DIETRICH EQUIPEMENT MENAGER, De Dietrich et Cie SA filed Critical DE DIETRICH EQUIPEMENT MENAGER
Publication of EP0348319A1 publication Critical patent/EP0348319A1/de
Application granted granted Critical
Publication of EP0348319B1 publication Critical patent/EP0348319B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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

Definitions

  • the invention relates to a device for locking and unlocking a door for a cooking chamber, in particular for a cooking chamber with pyrolysis cleaning.
  • latches controlled by electromagnet as in documents FR 73 13 831 and FR 73 01 363; devices with locking arms driven by an electric motor and controlled by micro-contacts such as, for example, the one shown in FIG. 1 and which is used by the applicant for its manufacturer reference ovens 800.
  • This device consists of a motor (M), two micro-contacts (MC1) and (MC2), a lever (L), a latch (V), a spring (R).
  • the motor (M) starts and drives the lever (L) in rotation to release the lock (V) which, under the action of the spring (R ), go down and lock the door.
  • the bolt (V) going down releases the micro-contact (MC1) allowing the heating to start up for the cleaning cycle, and in its rotation, the lever (L) presses on the micro-contact (MC2) stopping thus the motor supply.
  • the motor By placing the main switch in a position other than pyrolysis, the motor is again supplied with power, but then turns in the opposite direction.
  • the engine can only be powered if the pyrolysis thermostat has switched, i.e. the temperature in the enclosure is lower than the temperature required by the regulations in force.
  • This device therefore has two moving parts, the lever (L) and the latch (V), each of them controlling a micro-contact, and requiring two non-integral guide means.
  • the major drawbacks of the device are that they require significant construction play, further amplified by the length of the lever (L), acting on the micro-contacts by two separate moving parts, and actuating the micro-contact (MC2). and the latch (V) by two separate arms of the lever (L) thus separating the two controls.
  • These clearances are, in a certain number of cases, the cause of malfunctions, for example a total locking of the door or an unlocking at the end of pyrolysis followed immediately by a new locking.
  • the applicant has imposed itself to control the two micro-contacts by means of a single finger secured to the lock, and to combine all of the guidance and positioning functions on a single support, in order to reduce Games.
  • the device for locking and unlocking the door for a cooking chamber comprises a synchronous motor, a movable lock carrying a latch, a return spring, two micro-contacts and is characterized in that it further comprises on the one hand a single support carrying the synchronous motor and the latch, and at least one means for lateral guidance of said latch secured to the support, on the other hand a single transmission arm secured by one of its ends to the axis of the motor synchronous and comprising at its at the other end, an attachment means for the return spring, and a latch drive element capable of producing a rectilinear vertical displacement of the latch, for example a cam.
  • the lock has a single finger intended to actuate in turn the tongues of two micro-contacts, placed in the same plane. If the associated electrical circuit requires more than two micro-contacts, a plurality of fingers can be provided if necessary.
  • the preferred nonlimiting embodiment shown in the attached figures mainly consists of: - two micro-contacts (1, 2), - a spring (3), - a transmission arm (4), - a movable lock (5), - a latch (6) integral with the lock (5), - a reduction motor (7), - a bar (8), - a support (20).
  • the support (20) is designed both to support all of the elements constituting the locking-unlocking device, and to perform all of the guiding functions of all the moving parts of the same device.
  • the support (20) is formed from a cut and folded sheet metal plate.
  • a vertical central plate (26) carrying a stamped (28) said central plate extends partly high by a horizontal upper tab (21) and a vertical border (22) obtained by folding, on the other hand also in the upper part, of a lateral tab (27) vertical and perpendicular to the central plate (26) and on the other hand in the lower part, with a lower leg (24) vertical and perpendicular to the central plate (26), and with a vertical border (23) parallel to the central plate (26), the leg (24) and the border (23) being obtained by folding, the tab (24) comprising a latch guide means (6), for example a light (25), vertical, rectangular, having guide throttles (32) adjusted to the thickness of the latch for example and not limited to the number of two, arranged opposite one another.
  • a latch guide means (6) for example a light (25), vertical, rectangular, having guide throttles (32) adjusted to the thickness of the latch for example and not limited to the number of two, arranged opposite one another
  • the main functions of the various parts of the support (20) which have just been listed are not limited to: fixing and positioning of the entire device on the frame of the cooking enclosure by any suitable means, for example as in the figures by screwing or riveting the edges (22), (23) on the uprights (9a), (9b) of the frame (9).
  • - micro-contact support (1) and (2) so that the open and closed positions of the control tabs are in the same vertical plane parallel to the direction of movement of the latch.
  • - motor support (7) which is fixed by any appropriate means (29) in the upper part of the central plate (26), preferably, due to the size of the other side of said plate (26) relative to the arm (4) and lock (5).
  • the support also has other functions described below.
  • the lock is a flat metal rod substantially L-shaped and having at its lower end a latch (6) guided vertically and laterally by the light (25) and the throttles (32), at its upper end two fasteners ( 10a, 10b) and a side finger (11) obtained by cutting and folding.
  • the transmission arm (4) is integral at one of its ends with the motor shaft (7) and has at the other of its ends a hooking means (4a) for the spring (3), and in look of the lock a cam (4b) capable of transforming the circular movement of the arm (4) into a rectilinear movement of the lock (5) (see FIG. 2).
  • the spring is a standard spring attached on the one hand to (4a), and on the other to one or other of the fasteners (10a, 10b) of the lock (5) according to the chosen tension. It is possible to provide a higher number of fasteners.
  • the support (20) is completed by a bar (8) ensuring with the central plate (26) of the support the lateral guides of the latch (5), respectively lateral guide on the enclosure side, and lateral on the outside side.
  • the bar is made integral with the support (20) by two sockets (30) locked by screws (31) or by any other suitable means.
  • the sockets (30) constitute fixed points of the assembly (support (20), bar (8)) which cooperate with the oblong slots (13) provided in the latch (5) to allow its displacement.
  • the slots (13) extend parallel to the axis of movement of the lock (5) and their length is appropriate to the amplitude of the sliding of said lock.
  • the device works as follows:
  • the motor (7) starts and drives the arm (4), and under the action of the spring the latch (5) passes in the low position as indicated by dotted lines in FIG. 3.
  • the latch (6) descends and locks the door, then the finger (11) presses on the tab of the micro-contact (2) which cuts the power supply to the motor (7) .
  • microswitch tab (1) has been released and the cleaning cycle begins.
  • the motor is again supplied with power (if the enclosure temperature is lower than the temperature required by regulations. tations), but turns in the opposite direction to the previous case.
  • the lever (4) and the cam (4b) the latch (5) goes to the high position and releases the door, then the finger (11) presses on the microswitch tongue (1 ) to cut off the power to the motor.
  • the lock (5) controls the two micro-contacts by means of a single finger (11), the movement of said lock being controlled by the single lever (4) completed by the spring (3) .
  • the invention is not limited to the embodiment shown and described above but covers all the variants, in particular the variants of shapes and dimensions of the constituent parts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Ovens (AREA)
  • Cookers (AREA)
EP19890440057 1988-06-20 1989-06-20 Türverriegelung und Türentriegelung für Herde mit pyrolytischer Selbstreinigung Expired - Lifetime EP0348319B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8808417A FR2633033B1 (fr) 1988-06-20 1988-06-20 Dispositif de verrouillage et deverrouillage de porte pour enceinte de cuisson a nettoyage par pyrolyse
FR8808417 1988-06-20

Publications (2)

Publication Number Publication Date
EP0348319A1 true EP0348319A1 (de) 1989-12-27
EP0348319B1 EP0348319B1 (de) 1991-10-30

Family

ID=9367612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890440057 Expired - Lifetime EP0348319B1 (de) 1988-06-20 1989-06-20 Türverriegelung und Türentriegelung für Herde mit pyrolytischer Selbstreinigung

Country Status (3)

Country Link
EP (1) EP0348319B1 (de)
DE (1) DE68900377D1 (de)
FR (1) FR2633033B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709029B2 (en) 2001-12-21 2004-03-23 Emerson Electric Co. Door latch mechanism and associated components for a self-cleaning oven
US6863316B2 (en) * 2001-12-21 2005-03-08 Emerson Electric Co. Door latch mechanism and associated components for a self-cleaning oven
WO2007137965A1 (de) * 2006-06-01 2007-12-06 BSH Bosch und Siemens Hausgeräte GmbH Verriegelungsvorrichtung zum verriegeln einer gargerätetür

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462584A (en) * 1967-08-09 1969-08-19 Kelvinator Inc Range oven door latching device
US3757084A (en) * 1971-09-27 1973-09-04 Corning Glass Works Door latching system
US4593945A (en) * 1984-03-14 1986-06-10 The Stanley Works Oven latch assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462584A (en) * 1967-08-09 1969-08-19 Kelvinator Inc Range oven door latching device
US3757084A (en) * 1971-09-27 1973-09-04 Corning Glass Works Door latching system
US4593945A (en) * 1984-03-14 1986-06-10 The Stanley Works Oven latch assembly

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6709029B2 (en) 2001-12-21 2004-03-23 Emerson Electric Co. Door latch mechanism and associated components for a self-cleaning oven
US6863316B2 (en) * 2001-12-21 2005-03-08 Emerson Electric Co. Door latch mechanism and associated components for a self-cleaning oven
WO2007137965A1 (de) * 2006-06-01 2007-12-06 BSH Bosch und Siemens Hausgeräte GmbH Verriegelungsvorrichtung zum verriegeln einer gargerätetür
US8714148B2 (en) 2006-06-01 2014-05-06 Bsh Bosch Und Siemens Haugeraete Gmbh Locking apparatus for locking a cooking device door

Also Published As

Publication number Publication date
FR2633033B1 (fr) 1990-09-28
DE68900377D1 (de) 1991-12-05
FR2633033A1 (fr) 1989-12-22
EP0348319B1 (de) 1991-10-30

Similar Documents

Publication Publication Date Title
GB2143579A (en) Releasable hold-open device for a door closer
EP0959206A1 (de) Kraftfahrzeugtürschloss mit elektrischer Verriegelung
JPS60112977A (ja) 可動部片の作動装置
EP0348319B1 (de) Türverriegelung und Türentriegelung für Herde mit pyrolytischer Selbstreinigung
US6380520B1 (en) Toaster with improved safety device
EP0159238A1 (de) Elektromechanishe Schlossbedienung und Kraftfahrzeugtürschloss damit versehen
EP0860132B1 (de) Brotröster mit Mehrstellungsaufnahmefach
CA2007196A1 (fr) Contacteur-inverseur protege utilisant un systeme de transmission multifonctionnel pour la commande d'interrupteurs de confirmation
JP2003343853A (ja) グリル
FR2490707A1 (fr) Serrure a pene dormant et pene demi-tour
FR2695426A1 (fr) Serrure à commande électrique à distance, destinée à équiper une porte.
JP4118987B2 (ja) 扉用錠止装置
BE1001398A6 (fr) Serrure a dispositif d'embrayage et de debrayage.
EP0247914B1 (de) Manuelle Sperr- und Lösevorrichtung eines Verriegelungs- und motorischen Betätigungssystems für Kipptore
FR2651268A2 (fr) Verrou automatique de blocage par electro-aimant de la tringle coulissante d'un serrure multi-penes.
CN108493067B (zh) 断路器系统及手车式断路器
FR2864208A1 (fr) Four electromenager avec support coulissant pour les aliments
EP1029491B1 (de) Sicherheits- und/oder Kontrollvorrichtung für elektrische Kochgeräte
US2951436A (en) Toaster structure
FR2697278A1 (fr) Dispositif de verrouillage/déverrouillage pour portail à deux battants, et portail équipé d'un tel dispositif.
FR2657458A1 (fr) Commutateur electrique bistable, notamment pour la commande de l'eclairage d'un vehicule automobile.
JPH0222565Y2 (de)
JP2873512B2 (ja) 展示ケース等における引戸装置
FR2541352A1 (fr) Dispositif perfectionne de commande de portes
EP0338315A2 (de) Mikrowellenofen

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 GB

17P Request for examination filed

Effective date: 19891216

17Q First examination report despatched

Effective date: 19910109

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DE DIETRICH EQUIPEMENT MENAGER, SOCIETE ANONYME

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB

REF Corresponds to:

Ref document number: 68900377

Country of ref document: DE

Date of ref document: 19911205

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19920527

Year of fee payment: 4

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

Ref country code: GB

Effective date: 19930620

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930620

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

Ref country code: DE

Effective date: 19940301