EP0397020A2 - Power control device for a microwave oven - Google Patents

Power control device for a microwave oven Download PDF

Info

Publication number
EP0397020A2
EP0397020A2 EP90108314A EP90108314A EP0397020A2 EP 0397020 A2 EP0397020 A2 EP 0397020A2 EP 90108314 A EP90108314 A EP 90108314A EP 90108314 A EP90108314 A EP 90108314A EP 0397020 A2 EP0397020 A2 EP 0397020A2
Authority
EP
European Patent Office
Prior art keywords
cylinder
axis
control device
actuator
cam
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
EP90108314A
Other languages
German (de)
French (fr)
Other versions
EP0397020B1 (en
EP0397020A3 (en
Inventor
Bernard Boin
Pierre Alexandre Gustave Brisard
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.)
Moulinex SA
Original Assignee
Moulinex 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 Moulinex SA filed Critical Moulinex SA
Publication of EP0397020A2 publication Critical patent/EP0397020A2/en
Publication of EP0397020A3 publication Critical patent/EP0397020A3/en
Application granted granted Critical
Publication of EP0397020B1 publication Critical patent/EP0397020B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/004—Mechanisms for operating contacts for operating contacts periodically
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
    • H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing

Definitions

  • the invention relates to devices for controlling the power of microwave ovens comprising a timer, the movement of which causes a mechanism for periodically actuating the button of a switch mounted in the electrical supply circuit of the oven, as well that means for selecting operating modes maneuverable by the user and intended to influence the actuation mechanism so as to modify the closing and opening periods of said switch in order to obtain different cooking modes.
  • Devices of this type are generally manufactured, for reasons of space and precision, according to the so-called watchmaking technique, that is to say comprising relatively small parts and rigorous dimensions (for example cam with complicated profile).
  • watchmaking technique that is to say comprising relatively small parts and rigorous dimensions (for example cam with complicated profile).
  • assembly between the actuating mechanism and the selector means must be reliable and robust because it must be operated by the user.
  • the invention aims to simplify the construction of these devices so that they can be produced in large series and at low cost.
  • the periodic actuation mechanism comprises an actuator which is mounted movable against an elastic means in a reciprocating movement and which carries a cam intended to act on the button of the switch, as well as a cylinder which is rotated by the timer and which is slidably mounted along its axis of rotation by means of a transmitter secured to the mode selector means, said actuator and said cylinder respectively having means of '' temporary mutual couplings such as a toothed zone carried by the actuator and at least one meshing zone formed on the lateral surface of the cylinder and comprising a series of teeth which are distributed circumferentially and which extend parallel to the axis of the cylinder according to different progressive lengths, thus defining a multiplicity of peripheral toothed tracks respectively having different arc lengths entes according to their location on the height of the cylinder, so that the duration of engagement of said cylinder with the actuator is dependent on the position of the cylinder on its axis relative to the actuator.
  • the oven control device includes a timer, the movement of which, shown diagrammatically by the output pinion 1, drives a periodic actuation mechanism for the button 2 of a switch 3, mounted in the electrical supply circuit of the oven, as well as selector means 4 of operating modes maneuverable by the user and intended to influence the actuation mechanism so as to modify the periods closing and opening the switch 3 in order to obtain different cooking modes,
  • the actuation mechanism comprises an actuator 5 constituted by a rack which is mounted movable linearly against an elastic means such as a spring 6 in a reciprocating movement and which carries a cam 7 intended to come to act on the button 2 of the switch 3, as well as a cylinder 8 which is driven in rotation about its axis 9 by means of a toothed wheel 9 ′, and which is mounted to slide axially along said axis 9, by means of a transmitter 10 secured to the selector means 4, said rack 5 and said cylinder 8 respectively having temporary mutual coupling means such as the toothed zone 11 of the rack and two meshing zones 12 formed on the lateral surface of cylinder 8 and diametrically opposite, thus leaving between them two smooth zones 13.
  • an actuator 5 constituted by a rack which is mounted movable linearly against an elastic means such as a spring 6 in a reciprocating movement and which carries a cam 7 intended to come to act on the button 2 of the switch 3, as well as a cylinder 8 which is driven in rotation about its axis 9 by
  • Each zone 12 comprises a series of teeth which are distributed circumferentially and which extend parallel to the axis 9 of the cylinder 8 according to different progressive lengths, thus defining a multiplicity of peripheral toothed tracks which respectively have different arc lengths in according to their location on the height of the cylinder 8, and of which, for example, two possible tracks P1 and P2 have been illustrated in broken lines.
  • each series each have an end 14 called base arranged on an arc of the edge of one 15 of the transverse faces 15, 16 of the cylinder 8 while the other end 17 called apex stops along d '' a helical line (shown in dashed lines in 18) joining the two faces 15 and 16 and winding from the end 14 of the smallest tooth towards the end 17 of the longest tooth 19 in the direction of rotation of the cylinder (arrow F), this tooth 19 extending over practically the entire height of the cylinder and being located at the head in the direction of rotation of said cylinder.
  • the mode selector means comprise a cam 20 driven in rotation by a control shaft 21 maneuverable by the user and mounted parallel to the axis 9 of the cylinder 8 and comprising an active part 22 extending along a propeller unwinding coaxially with said control tree.
  • the transmitter 10 having the shape of a fork, has a forked end 23 which surrounds the axis 9 and which engages with the flange 16 of the cylinder, while the other end 24 comes to bear on the active part 22 of said cam, the transmitter being slidably mounted along an axis 25 integral with the timer unit and also parallel to the axis 9 of said cylinder 8.
  • the control device thus produced operates in the following manner. Let us consider that the user maneuvers the control shaft 21 to bring the cam 20 to the position of FIG. 1. During this rotational movement, the transmitter 10 bearing by its end 24 on the active part 22 is brought to slide along the arrow G along the axis 25 and moves the cylinder 8 by its forked end 23 guided along the axis 9 until bringing it to the level shown.
  • the rotation of the cylinder according to arrow F therefore brings the track P1, which has the greatest number of teeth, in mesh with the rack thus causing its translation against the spring 6 (arrow H). Thanks to this translation, the cam 7 acts on the button 2 of the switch which, from its rest position corresponding to the closing of the magnetron supply circuit, passes to its open position thus cutting off said supply, and maintains this opening as long as the rack is engaged with track P1.

Landscapes

  • Electric Ovens (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
  • Transmission Devices (AREA)

Abstract

Dispositif de commande comportant une minuterie d'entraînement d'un mécanisme d'actionnement périodique de la touche (2) d'un interrupteur (3) monté dans le circuit d'alimentation d'un four, ainsi que des moyens sélecteurs (4) de modes de fonctionnement destinés à modifier ledit mécanisme.Selon l'invention, le mécanisme d'actionnement comprend une crémaillère (5) portant une came (7) d'actionnement de la touche (2) et entraînée à l'encontre d'un ressort (6) selon un mouvement de va-et-vient par une zone dentée hélicoïdale (12) du cylindre (8) qui est monté à la fois rotatif et coulissant, de sorte que la durée d'engrènement du cylindre et de la crémaillère soit fonction de la position occupée par le cylindre (8) sur son axe et donnée par des moyens sélecteurs (4).L'invention s'applique à la commande de puissance des fours à usage ménager.Control device comprising a timer for driving a mechanism for periodically actuating the button (2) of a switch (3) mounted in the supply circuit of an oven, as well as selector means (4) operating modes intended to modify said mechanism.According to the invention, the actuating mechanism comprises a rack (5) carrying a cam (7) for actuating the button (2) and driven against a spring (6) in a reciprocating motion by a helical toothed region (12) of the cylinder (8) which is mounted both to rotate and to slide, so that the duration of engagement of the cylinder and the rack or a function of the position occupied by the cylinder (8) on its axis and given by selector means (4). The invention applies to the power control of ovens for household use.

Description

L'invention se rapporte aux dispositifs de commande de la puissance des fours à micro-ondes comportant une minuterie dont le mouvement entraîne un mécanisme d'actionnement périodique de la touche d'un interrupteur monté dans le circuit d'alimentation électrique du four, ainsi que des moyens sélecteurs de modes de fonctionnement manoeuvrables par l'usager et destinés à influencer le mécanisme d'actionnement de manière à modifier les périodes de fermeture et d'ouverture dudit interrupteur afin d'obtenir des modes différents de cuisson.The invention relates to devices for controlling the power of microwave ovens comprising a timer, the movement of which causes a mechanism for periodically actuating the button of a switch mounted in the electrical supply circuit of the oven, as well that means for selecting operating modes maneuverable by the user and intended to influence the actuation mechanism so as to modify the closing and opening periods of said switch in order to obtain different cooking modes.

Les dispositifs de ce type sont généralement fabriqués, pour des raisons d'encombrement et de précision, selon la technique dite horlogère, c'est-à-dire comportant des pièces relativement petites et de cotes rigoureuses ( par exemple came à profil compliqué). De plus, l'assemblage entre le mécanisme d'actionnement et les moyens sélecteurs doit être fiable et robuste car il doit être manoeuvré par l'usager. Ces diverses contraintes entraînent donc un coût élevé de fabrication.Devices of this type are generally manufactured, for reasons of space and precision, according to the so-called watchmaking technique, that is to say comprising relatively small parts and rigorous dimensions (for example cam with complicated profile). In addition, the assembly between the actuating mechanism and the selector means must be reliable and robust because it must be operated by the user. These various constraints therefore entail a high manufacturing cost.

L'invention a pour but de simplifier la construction de ces dispositifs de manière à pouvoir les fabriquer en grande série et à faible prix.The invention aims to simplify the construction of these devices so that they can be produced in large series and at low cost.

Selon l'invention le mécanisme d'actionnement périodique comprend un actionneur qui est monté mobile à l'encontre d'un moyen élastique selon un mouvement de va- et- vient et qui porte une came destinée à venir agir sur la touche de l'interrupteur, ainsi qu'un cylindre qui est entraîné en rotation par la minuterie et qui est monté coulissant le long de son axe de rotation au moyen d'un transmetteur solidaire des moyens sélecteurs de modes, ledit actionneur et ledit cylindre présentant respectivement des moyens d'accouplement mutuels temporaires tels qu'une zone dentée portée par l'actionneur et au moins une zone d'engrènement ménagée sur la surface latérale du cylindre et comportant une série de dents qui sont réparties circonférenciellement et qui s'étendent parallèlement à l'axe du cylindre selon des longueurs différentes progressives, définissant ainsi une multiplicité de pistes dentées périphériques présentant respectivement des longueurs d'arc différentes en fonction de leur emplacement sur la hauteur du cylindre, de sorte que la durée d'engrènement dudit cylindre avec l'actionneur soit dépendante de la position du cylindre sur son axe par rapport à l'actionneur.According to the invention, the periodic actuation mechanism comprises an actuator which is mounted movable against an elastic means in a reciprocating movement and which carries a cam intended to act on the button of the switch, as well as a cylinder which is rotated by the timer and which is slidably mounted along its axis of rotation by means of a transmitter secured to the mode selector means, said actuator and said cylinder respectively having means of '' temporary mutual couplings such as a toothed zone carried by the actuator and at least one meshing zone formed on the lateral surface of the cylinder and comprising a series of teeth which are distributed circumferentially and which extend parallel to the axis of the cylinder according to different progressive lengths, thus defining a multiplicity of peripheral toothed tracks respectively having different arc lengths entes according to their location on the height of the cylinder, so that the duration of engagement of said cylinder with the actuator is dependent on the position of the cylinder on its axis relative to the actuator.

Ainsi, un tel dispositif à engrenage s'avère d'une réalisation simple et robuste, n'exigeant pas une technique de moulage et d'assemblage de haute précision et permet donc de réduire les coûts de fabrication.Thus, such a gear device proves to be of a simple and robust embodiment, not requiring a high precision molding and assembly technique and therefore makes it possible to reduce the manufacturing costs.

Les caractéristiques et avantages de l'invention ressortiront d'ailleurs de la description qui va suivre, à titre d'exemple, en référence au dessin annexé dans lequel :

  • la figure 1 est une vue schématique d'un dispositif de commande selon l'invention.
The characteristics and advantages of the invention will become apparent from the description which follows, by way of example, with reference to the appended drawing in which:
  • Figure 1 is a schematic view of a control device according to the invention.

Comme représenté, le dispositif de commande du four comporte une minuterie dont le mouvement schématisé par le pignon de sortie 1 entraîne un mécanisme d'actionnement périodique de la touche 2 d'un interrupteur 3, monté dans le circuit d'alimentation électrique du four, ainsi que des moyens sélecteurs 4 de modes de fonctionnement manoeuvrables par l'usager et destinés à influencer le mécanisme d'actionnement de manière à modifier les périodes de fermeture et d'ouverture de l'interrupteur 3 afin d'obtenir des modes différents de cuisson,As shown, the oven control device includes a timer, the movement of which, shown diagrammatically by the output pinion 1, drives a periodic actuation mechanism for the button 2 of a switch 3, mounted in the electrical supply circuit of the oven, as well as selector means 4 of operating modes maneuverable by the user and intended to influence the actuation mechanism so as to modify the periods closing and opening the switch 3 in order to obtain different cooking modes,

Le mécanisme d'actionnement comprend un actionneur 5 constitué par une crémaillère qui est montée mobile linéairement à l'encontre d'un moyen élastique tel qu'un ressort 6 selon un mouvement de va-et-vient et qui porte une came 7 destinée à venir agir sur la touche 2 de l'interrupteur 3, ainsi qu'un cylindre 8 qui est entraîné en rotation autour de son axe 9 au moyen d' une roue dentée 9′, et qui est monté coulissant axialement le long dudit axe 9 , au moyen d'un transmetteur 10 solidaire des moyens sélecteurs 4, ladite crémaillère 5 et ledit cylindre 8 présentant respectivement des moyens d'accouplement mutuels temporaires tels que la zone dentée 11 de la crémaillère et deux zones d'engrènement 12 ménagées sur la surface latérale du cylindre 8 et diamétralement opposées,laissant ainsi entre elles deux zones lisses 13.The actuation mechanism comprises an actuator 5 constituted by a rack which is mounted movable linearly against an elastic means such as a spring 6 in a reciprocating movement and which carries a cam 7 intended to come to act on the button 2 of the switch 3, as well as a cylinder 8 which is driven in rotation about its axis 9 by means of a toothed wheel 9 ′, and which is mounted to slide axially along said axis 9, by means of a transmitter 10 secured to the selector means 4, said rack 5 and said cylinder 8 respectively having temporary mutual coupling means such as the toothed zone 11 of the rack and two meshing zones 12 formed on the lateral surface of cylinder 8 and diametrically opposite, thus leaving between them two smooth zones 13.

Chaque zone 12 comporte une série de dents qui sont réparties circonférenciellement et qui s'étendent parallèlement à l'axe 9 du cylindre 8 selon des longueurs différentes progressives, définissant ainsi une multiplicité de pistes dentées périphériques qui présentent respectivement des longueurs d'arc différentes en fonction de leur emplacement sur la hauteur du cylindre 8, et dont, par exemple, on a illustré en traits interrompus deux possibles pistes P1 et P2.Each zone 12 comprises a series of teeth which are distributed circumferentially and which extend parallel to the axis 9 of the cylinder 8 according to different progressive lengths, thus defining a multiplicity of peripheral toothed tracks which respectively have different arc lengths in according to their location on the height of the cylinder 8, and of which, for example, two possible tracks P1 and P2 have been illustrated in broken lines.

Les dents de chaque série présentent chacune une extrémité 14 dite de base agencée sur un arc de la bordure de l'une 15 des faces transversales 15 ,16 du cylindre 8 tandis que l'autre extrémité 17 dite de sommet s'arrête le long d'une ligne hélicoïdale (schématisée en traits interrompus en 18) joignant les deux faces 15 et 16 et s'enroulant de l'extrémité 14 de la plus petite dent vers l'extrémité 17 de la plus longue dent 19 dans le sens de rotation du cylindre (flèche F),cette dent 19 s'étendant sur pratiquement toute la hauteur du cylindre et étant située en tête dans le sens de rotation dudit cylindre.The teeth of each series each have an end 14 called base arranged on an arc of the edge of one 15 of the transverse faces 15, 16 of the cylinder 8 while the other end 17 called apex stops along d '' a helical line (shown in dashed lines in 18) joining the two faces 15 and 16 and winding from the end 14 of the smallest tooth towards the end 17 of the longest tooth 19 in the direction of rotation of the cylinder (arrow F), this tooth 19 extending over practically the entire height of the cylinder and being located at the head in the direction of rotation of said cylinder.

Les moyens sélecteurs de modes comportent une came 20 entraînée en rotation par un arbre de commande 21 manoeuvrable par l'usager et monté parallèle à l'axe 9 du cylindre 8 et comportant une partie active 22 s'étendant selon une hélice se déroulant coaxialement audit arbre de commande. Le transmetteur 10, présentant la forme d'une fourchette, comporte une extrémité fourchue 23 qui vient entourer l'axe 9 et qui vient en prise avec le flasque 16 du cylindre, tandis que l'autre extrémité 24 vient prendre appui sur la partie active 22 de ladite came, le transmetteur étant monté coulissant selon un axe 25 solidaire du boîtier de minuterie et également parallèle à l'axe 9 dudit cylindre 8.The mode selector means comprise a cam 20 driven in rotation by a control shaft 21 maneuverable by the user and mounted parallel to the axis 9 of the cylinder 8 and comprising an active part 22 extending along a propeller unwinding coaxially with said control tree. The transmitter 10, having the shape of a fork, has a forked end 23 which surrounds the axis 9 and which engages with the flange 16 of the cylinder, while the other end 24 comes to bear on the active part 22 of said cam, the transmitter being slidably mounted along an axis 25 integral with the timer unit and also parallel to the axis 9 of said cylinder 8.

Le dispositif de commande ainsi réalisé fonctionne de la manière suivante. Considérons que l'usager manoeuvre l'arbre de commande 21 pour amener la came 20 en la position de la figure 1. Au cours de ce mouvement de rotation, le transmetteur 10 en appui par son extrémité 24 sur la partie active 22 est amené à coulisser selon la flèche G le long de l'axe 25 et déplace le cylindre 8 par son extrémité fourchue 23 guidée le long de l'axe 9 jusqu'à l'amener au niveau représenté . La rotation du cylindre selon la flèche F amène donc la piste P1, qui comporte le plus grand nombre de dents, en engrènement avec la crémaillère provoquant ainsi sa translation à l'encontre du ressort 6 (flèche H). Grâce à cette translation, la came 7 vient agir sur la touche 2 de l'interrupteur qui, de sa position de repos correspondant à la fermeture du circuit d'alimentation du magnétron, passe à sa position d'ouverture coupant ainsi ladite alimentation, et maintient cette ouverture tant que la crémaillère est en prise avec la piste P1.The control device thus produced operates in the following manner. Let us consider that the user maneuvers the control shaft 21 to bring the cam 20 to the position of FIG. 1. During this rotational movement, the transmitter 10 bearing by its end 24 on the active part 22 is brought to slide along the arrow G along the axis 25 and moves the cylinder 8 by its forked end 23 guided along the axis 9 until bringing it to the level shown. The rotation of the cylinder according to arrow F therefore brings the track P1, which has the greatest number of teeth, in mesh with the rack thus causing its translation against the spring 6 (arrow H). Thanks to this translation, the cam 7 acts on the button 2 of the switch which, from its rest position corresponding to the closing of the magnetron supply circuit, passes to its open position thus cutting off said supply, and maintains this opening as long as the rack is engaged with track P1.

Lorsque l'une des zones lisses 13 arrive en regard de la crémaillère et que la dernière dent de la piste P1 échappe à cette crémaillère, celle ci est repoussée par le ressort 6 de manière à reprendre sa position d'attente pour laquelle la touche 2 est libérée et l'interrupteur 3 est fermé.When one of the smooth zones 13 arrives opposite the rack and the last tooth of the track P1 escapes from this rack, the latter is pushed back by the spring 6 so as to return to its waiting position for which the key 2 is released and switch 3 is closed.

Ainsi, grâce à la rotation continue du cylindre 8 on obtient une série de va-et-vient de la crémaillère 5 qui définit les périodes d'ouverture et de fermeture de l'interrupteur 3 et donc la puissance du four.Thus, thanks to the continuous rotation of the cylinder 8, a series of back-and-forth movements of the rack 5 is obtained, which defines the periods of opening and closing of the switch 3 and therefore the power of the oven.

Lorsque l'usager désire changer de mode de cuisson et donc modifier la puissance du four, il agit sur l'arbre de commande 21 de manière à faire coulisser le cylindre 8 le long de l'axe 9 jusqu'à atteindre un niveau différent par rapport à la crémaillère. Supposons que le cylindre 8 soit amené à un niveau correspondant à la piste illustrée en P2 (P2 comporte pratiquement 4 dents tandis que P1 en comporte 10), on comprendra que l'engrènement de la crémaillère et du cylindre est d'une durée plus courte que précédemment puisque le nombre de dents de cette piste est plus petit et que la crémaillère reste plus longtemps en regard de l'une des zones lisses 13 qui s'étend, à ce niveau, sur un arc de plus grande longueur que l'arc compris entre les deux pistes P1. Par conséquent, puisque la durée de fermeture de l'interrupteur 3 en sa position de repos est plus longue que précédemment, la période d'actionnement de la touche 2 de l'interrupteur 3 est modifiée et donc la puissance de fonctionnement du four est changée.When the user wishes to change the cooking mode and therefore modify the power of the oven, he acts on the control shaft 21 so as to slide the cylinder 8 along the axis 9 until reaching a different level by compared to the rack. Suppose that the cylinder 8 is brought to a level corresponding to the track illustrated in P2 (P2 has practically 4 teeth while P1 has 10), it will be understood that the engagement of the rack and the cylinder is of shorter duration than previously since the number of teeth on this track is smaller and the rack remains longer opposite one of the smooth zones 13 which extends, at this level, over an arc of greater length than the arc between the two tracks P1. Consequently, since the duration of closing of the switch 3 in its rest position is longer than previously, the period of actuation of the button 2 of the switch 3 is modified and therefore the operating power of the oven is changed .

Claims (5)

1. Dispositif de commande des fours à micro-ondes comportant une minuterie dont le mouvement (1) entraîne un mécanisme d'actionnement périodique de la touche (2) d'un interrupteur (3), monté dans le circuit d'alimentation électrique du four, ainsi que des moyens sélecteurs (4) de modes de fonction­nement manoeuvrables par l'usager et destinés à influencer le mécanisme d'actionnement de manière à modifier les périodes de fermeture et d'ouverture dudit interrupteur (3) afin d'obtenir des modes différents de cuisson,
caractérisé en ce que le mécanisme d'actionnement périodique comprend un actionneur (5) qui est monté mobile à l'encontre d'un moyen élastique (6) selon un mouvement de va-et-vient et qui porte une came (7) destinée à venir agir sur la touche (2) de l'interrupteur (3), ainsi qu'un cylindre (8) qui est entraîné en rotation par la minuterie et qui est monté coulissant axialement le long de son axe (9) de rotation au moyen d'un transmetteur (10) solidaire des moyens sélecteurs (4) de modes, ledit actionneur (5) et ledit cylindre (8) présentant respectivement des moyens d'accouplement mutuels temporaires tels qu'une zone dentée (11) portée par l'actionneur (5) et au moins une zone d'engrènement (12) ménagée sur la surface latérale du cylindre (8) et comportant une série de dents qui sont réparties circonférenciellement et qui s'étendent parallèlement à l'axe (9) du cylindre (8) selon des longueurs différentes progressives, définissant ainsi une multiplicité de pistes dentées périphériques (P1,P2...) présentant respectivement des longueurs d'arc différentes en fonction de leur emplacement sur la hauteur du cylindre (8), de sorte que la durée d'engrènement dudit cylindre (8) avec l'actionneur (5) soit fonction de la position du cylindre (8) sur son axe par rapport à l'actionneur.1. Control device for microwave ovens comprising a timer, the movement (1) of which activates a mechanism for periodically actuating the button (2) of a switch (3), mounted in the electrical supply circuit of the oven, as well as selector means (4) of operating modes maneuverable by the user and intended to influence the actuation mechanism so as to modify the closing and opening periods of said switch (3) in order to obtain different cooking modes,
characterized in that the periodic actuation mechanism comprises an actuator (5) which is movably mounted against an elastic means (6) in a reciprocating movement and which carries a cam (7) intended coming to act on the button (2) of the switch (3), as well as a cylinder (8) which is rotated by the timer and which is mounted to slide axially along its axis (9) of rotation at means of a transmitter (10) integral with the mode selector means (4), said actuator (5) and said cylinder (8) respectively presenting temporary mutual coupling means such as a toothed zone (11) carried by the actuator (5) and at least one engagement zone (12) formed on the lateral surface of the cylinder (8) and comprising a series of teeth which are distributed circumferentially and which extend parallel to the axis (9) of the cylinder (8) according to different progressive lengths, thus defining a multiplicity of peripheral toothed tracks (P1, P2 ...) respectively having different arc lengths depending on their location on the height of the cylinder (8), so that the duration of engagement of said cylinder (8) with the actuator (5) is a function of the position of the cylinder (8) on its axis relative to the actuator. 2. Dispositif de commande selon la revendication 1,
caractérisé en ce que l'actionneur (5) est constitué par une crémaillère qui est montée mobile linéairement selon une direction transversale à l'axe (9) de rotation du cylindre (8) et dont une région adjacente à la zone dentée (11) porte la came (7).2. Control device according to claim 1,
characterized in that the actuator (5) consists of a rack which is mounted movable linearly according to a direction transverse to the axis (9) of rotation of the cylinder (8) and of which a region adjacent to the toothed zone (11) carries the cam (7). 3. Dispositif de commande selon la revendication 1 ou 2,
caractérisé en ce que les dents de la zone d'engrènement (12) présentent chacune une extrémité (14) dite de base agencée sur un arc de la bordure de l'une (15) des faces transversales (15,16) du cylindre (8) et une extrémité (17) dite de sommet qui s'arrête le long d'une ligne hélicoïdale (18) joignant les deux faces transversales du cylindre (8) et s'enroulant dans le sens de rotation du cylindre de l'extrémité de base (14) vers l'extrémité de sommet (17), de sorte que la dent la plus longue soit située en tête de la série de dents.3. Control device according to claim 1 or 2,
characterized in that the teeth of the engagement zone (12) each have an end (14) called the base arranged on an arc of the edge of one (15) of the transverse faces (15,16) of the cylinder ( 8) and an end (17) called apex which stops along a helical line (18) joining the two transverse faces of the cylinder (8) and winding in the direction of rotation of the cylinder from the end base (14) toward the tip end (17), so that the longest tooth is located at the head of the set of teeth. 4. Dispositif de commande selon l'une quelconque des revendications précédentes,
caractérisé en ce que le cylindre (8) présente deux zones d'engrènement (12) diamétralement opposées.4. Control device according to any one of the preceding claims,
characterized in that the cylinder (8) has two diametrically opposite engagement zones (12). 5. Dispositif de commande selon l'une quelconque des revendications précédentes,
caractérisé en ce que les moyens sélecteurs (4) de modes comportent une came (20) entraînée en rotation par un arbre de commande (21) monté parallèle à l'axe (9) du cylindre (8) et comportant une partie active (22) s'étendant selon une hélice se déroulant coaxialement audit arbre de commande (21), tandis que le transmetteur (10) présente la forme d'une fourchette qui comporte une extrémité fourchue (23) venant en prise avec l'un (16) des flasques du cylindre (8) et dont l'autre extrémité (24) vient prendre appui sur la partie active (22) de la came (20), ledit transmetteur (10) étant monté coulissant selon un axe (25) également parallèle à l'axe (9) du cylindre (8).5. Control device according to any one of the preceding claims,
characterized in that the mode selector means (4) comprise a cam (20) driven in rotation by a control shaft (21) mounted parallel to the axis (9) of the cylinder (8) and comprising an active part (22 ) extending along a propeller unwinding coaxially to said control shaft (21), while the transmitter (10) has the form of a fork which has a forked end (23) engaging one (16) cylinder flanges (8) and the other end (24) of which rests on the active part (22) of the cam (20), said transmitter (10) being slidably mounted along an axis (25) also parallel to the axis (9) of the cylinder (8).
EP90108314A 1989-05-12 1990-05-02 Power control device for a microwave oven Expired - Lifetime EP0397020B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8906300 1989-05-12
FR8906300A FR2646962B1 (en) 1989-05-12 1989-05-12 DEVICE FOR CONTROLLING THE POWER OF A MICROWAVE OVEN

Publications (3)

Publication Number Publication Date
EP0397020A2 true EP0397020A2 (en) 1990-11-14
EP0397020A3 EP0397020A3 (en) 1991-10-30
EP0397020B1 EP0397020B1 (en) 1995-03-01

Family

ID=9381643

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90108314A Expired - Lifetime EP0397020B1 (en) 1989-05-12 1990-05-02 Power control device for a microwave oven

Country Status (9)

Country Link
US (1) US5097105A (en)
EP (1) EP0397020B1 (en)
JP (1) JP2735360B2 (en)
KR (1) KR0146289B1 (en)
DE (1) DE69017257T2 (en)
ES (1) ES2068940T3 (en)
FR (1) FR2646962B1 (en)
IE (1) IE900289L (en)
PT (1) PT93976B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4420135A1 (en) * 1994-06-09 1995-12-14 Licentia Gmbh Control and indicator unit for electronically regulated cooker
KR200142130Y1 (en) * 1994-08-17 1999-06-01 전주범 Establishment structure of timer and generating power regulating apparatus for microwave oven
KR0146600B1 (en) * 1995-07-19 1998-08-17 배순훈 Control timer of microwave oven
GB2337319B (en) * 1998-05-13 2000-07-19 Samsung Electronics Co Ltd Control panel for a microwave oven
US8931359B2 (en) 2011-09-19 2015-01-13 Vivero One Research, Llc Parallelogram based actuating device
US8464603B2 (en) * 2011-09-19 2013-06-18 Vivero One Research, Llc Parallelogram based actuating device
CN112178702B (en) * 2020-09-17 2022-03-18 宁波方太厨具有限公司 Novel stove and control method thereof
CN112178701B (en) * 2020-09-17 2022-03-18 宁波方太厨具有限公司 Novel stove and control method thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR786490A (en) * 1934-05-23 1935-09-03 Arnoux Vve Chauvin & Cie Apparatus for the production of current emissions of adjustable and known duration
GB898037A (en) * 1959-09-15 1962-06-06 Brentford Transformers Ltd Improvements in intermittent reversing drives
FR2082528A5 (en) * 1970-03-17 1971-12-10 Crouzet & Cie

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4177370A (en) * 1976-02-13 1979-12-04 Sharp Kabushiki Kaisha Variable cooking mode selector in a microwave oven
US4129769A (en) * 1976-03-11 1978-12-12 Sharp Kabushiki Kaisha Timer arrangement in a combination microwave oven and electric heating oven
US4133998A (en) * 1976-06-22 1979-01-09 Sharp Kabushiki Kaisha Cooking mode selector for continuously varying a mean output level of a magnetron in a microwave oven
US4629845A (en) * 1983-05-02 1986-12-16 Eaton Corporation Electrical appliance programming
US4551590A (en) * 1984-05-14 1985-11-05 Eaton Corporation Appliance control and programmer timer therefor
US4678930A (en) * 1986-02-05 1987-07-07 Eaton Corporation Microwave oven timer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR786490A (en) * 1934-05-23 1935-09-03 Arnoux Vve Chauvin & Cie Apparatus for the production of current emissions of adjustable and known duration
GB898037A (en) * 1959-09-15 1962-06-06 Brentford Transformers Ltd Improvements in intermittent reversing drives
FR2082528A5 (en) * 1970-03-17 1971-12-10 Crouzet & Cie

Also Published As

Publication number Publication date
IE900289L (en) 1990-11-12
KR0146289B1 (en) 1998-09-15
US5097105A (en) 1992-03-17
KR900019092A (en) 1990-12-24
FR2646962A1 (en) 1990-11-16
EP0397020B1 (en) 1995-03-01
EP0397020A3 (en) 1991-10-30
FR2646962B1 (en) 1992-07-31
DE69017257D1 (en) 1995-04-06
JP2735360B2 (en) 1998-04-02
ES2068940T3 (en) 1995-05-01
JPH03129210A (en) 1991-06-03
PT93976B (en) 1997-08-29
DE69017257T2 (en) 1995-07-06
PT93976A (en) 1991-01-08

Similar Documents

Publication Publication Date Title
EP0397020A2 (en) Power control device for a microwave oven
EP2275719A1 (en) Gearbox comprising a means for locking an output shaft and vehicle comprising such a gearbox
EP0467065A1 (en) Electric fryer
EP0568492B1 (en) Automatic braking device for motorised electronic operation of a door, shutter, blind or similar
FR2734879A1 (en) INTERNAL CONTROL OF A MOTOR VEHICLE GEARBOX HAVING A GEAR BRAKING DEVICE.
EP0308292A1 (en) Electromechanical cyclical programmer for the actuation of devices such as vehicle roof windows
EP0524152B1 (en) Automatic stop device with actuating sleeve for electric motor
FR2810381A1 (en) Actuator for clutch assembly comprises a motor driving a toothed wheel cooperating with a curved rack at one end of a connecting rod which is linked to the sliding piston
EP0170577A1 (en) Control device for opening a motor vehicle door lock
EP0325813B1 (en) Lock with a clutch
FR2493549A3 (en) WATCH OR ELECTRIC PENDULUM, IN PARTICULAR A QUARTZ WITH NEEDLE POSITION ADJUSTMENT DEVICE
EP0563745B1 (en) Clockwork provided with guide means of a control organ such as a stem
FR2525724A1 (en) MECHANISM FOR ACTIVATING A VALVE
EP0859922A1 (en) Safety device for a mechanical gearbox
EP1197640B1 (en) Multi-configuration valve drive
EP1072824A1 (en) Compact gearbox comprising swiveling feet for actuating shift fork
FR2474573A1 (en) Automobile centralised door locking system - allows easy manual unlocking and has latch for slider operated by stub of motor reduction chain
EP0584002A2 (en) Locking device for a closure member, e.g. a door
EP0187570B1 (en) Tachograph registering device operable both when a vehicle is moving or in a stationary position
FR2556292A1 (en) MECHANISM FOR GEARBOXES
FR2690226A3 (en) Selective shut down programmer for cooker rings or burners - uses preset timer to shut down preselected ring or burner via push rod and spring loaded control knob.
EP1053118B1 (en) Control device comprising notching means
FR2797018A1 (en) Compact gearbox containing tilting feet for the operation of the fork arms
CH673925B5 (en)
EP1167803A1 (en) Control device to connect an idling gear wheel mounted on a shaft and said shaft, especially for vehicle gearbox

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: A2

Designated state(s): BE CH DE ES GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): BE CH DE ES GB IT LI NL SE

17P Request for examination filed

Effective date: 19911004

17Q First examination report despatched

Effective date: 19931216

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE CH DE ES GB IT LI NL SE

REF Corresponds to:

Ref document number: 69017257

Country of ref document: DE

Date of ref document: 19950406

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19950317

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2068940

Country of ref document: ES

Kind code of ref document: T3

ITF It: translation for a ep patent filed

Owner name: FUMERO BREVETTI S.N.C.

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: BE

Payment date: 19970603

Year of fee payment: 8

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

Ref country code: BE

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

Effective date: 19980531

BERE Be: lapsed

Owner name: MOULINEX

Effective date: 19980531

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

Ref country code: CH

Payment date: 19990427

Year of fee payment: 10

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

Ref country code: GB

Payment date: 19990428

Year of fee payment: 10

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

Ref country code: NL

Payment date: 19990531

Year of fee payment: 10

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

Ref country code: GB

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

Effective date: 20000502

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

Ref country code: LI

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

Effective date: 20000531

Ref country code: CH

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

Effective date: 20000531

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

Ref country code: ES

Payment date: 20001031

Year of fee payment: 11

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

Ref country code: NL

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

Effective date: 20001201

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

Effective date: 20000502

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20001201

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: 20010503

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

Ref country code: DE

Payment date: 20010531

Year of fee payment: 12

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

Ref country code: SE

Payment date: 20020517

Year of fee payment: 13

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: 20021203

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

Ref country code: SE

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

Effective date: 20030503

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030203

EUG Se: european patent has lapsed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050502