EP0348319B1 - Türverriegelung und Türentriegelung für Herde mit pyrolytischer Selbstreinigung - Google Patents

Türverriegelung und Türentriegelung für Herde mit pyrolytischer Selbstreinigung Download PDF

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Publication number
EP0348319B1
EP0348319B1 EP19890440057 EP89440057A EP0348319B1 EP 0348319 B1 EP0348319 B1 EP 0348319B1 EP 19890440057 EP19890440057 EP 19890440057 EP 89440057 A EP89440057 A EP 89440057A EP 0348319 B1 EP0348319 B1 EP 0348319B1
Authority
EP
European Patent Office
Prior art keywords
cooking enclosure
door
pyrolysis
locking
unlocking
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
EP19890440057
Other languages
English (en)
French (fr)
Other versions
EP0348319A1 (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
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 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

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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

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.
  • 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 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 enclosure comprises a synchronous motor, a movable lock carrying a latch, a return spring, two micro-contacts and is characterized in that it also comprises on the one hand a single support carrying the synchronous motor and the latch, and at least one lateral guide means 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 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, 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 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 latch for example and not limited to the number of two, arranged opposite one another.
  • 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 the other of the fasteners (10a, 10b) of the lock (5) according to the chosen tension. It is possible to provide a greater 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) .
  • the motor is again supplied with power (if the enclosure temperature is lower than the temperature required by regulations), 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) .

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)

Claims (7)

1. Türverriegelung und Türentriegelung für Herde, insbesondere für Herde mit pyrolitischer Selbstreinigung, bestehend aus einem Synchronmotor (7), einem beweglichen Riegel, der eine Klinke (6) trägt, einer Rückholfeder, zwei Mikrokontakten, dadurch gekennzeichnet, daß sie außerdem enthält:
― einerseits eine einzige Stütze (20), die den Motor (7) und den Riegel (5) trägt, und mindestens eine seitliche Führung für den besagten Riegel (5), die mit der Stütze (20) fest verbunden ist;
― andererseits einen einzigen Übertragungshebel (4), der an einem seiner Enden mit der Welle des Motors (7) festverbunden ist und an seinem anderen Ende eine Einrichtung (4a) für das Einhaken für die Rückholfeder (3), eine Nocke (4b) für die Verschiebung des Riegels (5).
2. Türverriegelung und Türentriegelung für Herde, insbesondere für Herde mit pyrolitischer Selbstreinigung gemäß dem vorstehenden Anspruch, dadurch gekennzeichnet, daß der Riegel (5) eine metallische, flache Stange ist, die im wesentlichen eine L-Form aufweist und an ihrem unteren Ende eine Klinke (6) und an ihrem oberen Ende mindestens eine Befestigung (10a) und einen seitlichen Finger (11) besitzt.
3. Türverriegelung und Türentriegelung für Herde, insbesondere für Herde mit pyrolitischer Selbstreinigung gemäß irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die seitliche Führung für den Riegel aus einem Steg (8) und aus mehreren Wülsten (33) besteht, wobei der besagte Steg (8) mit Hilfe von zwei Buchsen (30), die durch Schrauben (31) gesichert sind, mit der Stütze (20) fest verbunden ist und die Wülste (33) paarweise einandergegenüber auf der Stütze (20) und auf dem Steg (8) angeordnet sind.
4. Türverriegelung und Türentriegelung für Herde, insbesondere für Herde mit pyrolitischer Selbstreinigung gemäß irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß sie außerdem eine seitliche und senkrechte Führung für die Klinge (6) enthält, die aus einem rechteckigen Schlitz (25) besteht, die in der unteren Lasche (24) der Stütze (20) vorgesehen ist, wobei der besagte Schlitz mehrere Führungseinengungen (32) aufweist, die an der Dicke der Klinge (6) angepaßt sind.
5. Türverriegelung und Türentriegelung für Herde, insbesondere für Herde mit pyrolitischer Selbstreinigung gemäß irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Zungen der beiden Mikrokontakte (1) (2) in derselben senkrechten Ebene angeordnet sind, die parallel zu der Achse der Verschiebung des Riegels (5) ist.
6. Türverriegelung und Türentriegelung für Herde, insbesondere für Herde mit pyrolitischer Selbstreinigung gemäß irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß die Feder einerseits mit Hilfe der Einrichtung für das Einhaken (4a) an einem Ende des Übertragungshebels (4) und andererseits an einer der Befestigungen (10a, 10b), die am oberen Ende des Riegels (5) vorgesehen sind, eingehängt ist.
7. Türverriegelung und Türentriegelung für Herde, insbesondere für Herde mit pyrolitischer Selbstreinigung gemäß irgendeinem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß ein einziger Finger (11) für die Betätigung der Laschen der beiden Mikrokontakte (1) (2) vorhanden ist.
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 EP0348319A1 (de) 1989-12-27
EP0348319B1 true 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)

Families Citing this family (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
DE102006025701A1 (de) 2006-06-01 2007-12-06 BSH Bosch und Siemens Hausgeräte GmbH Verriegelungsvorrichtung zum Verriegeln einer Gargerätetür

Family Cites Families (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

Also Published As

Publication number Publication date
EP0348319A1 (de) 1989-12-27
FR2633033B1 (fr) 1990-09-28
DE68900377D1 (de) 1991-12-05
FR2633033A1 (fr) 1989-12-22

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