FR2895047A1 - Leaf spring for e.g. cook top`s electronic board, has force distribution unit disposed opposite to elastic deformation unit, shaped as circular arc and connected to deformation unit through force transmission units - Google Patents
Leaf spring for e.g. cook top`s electronic board, has force distribution unit disposed opposite to elastic deformation unit, shaped as circular arc and connected to deformation unit through force transmission units Download PDFInfo
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- FR2895047A1 FR2895047A1 FR0513203A FR0513203A FR2895047A1 FR 2895047 A1 FR2895047 A1 FR 2895047A1 FR 0513203 A FR0513203 A FR 0513203A FR 0513203 A FR0513203 A FR 0513203A FR 2895047 A1 FR2895047 A1 FR 2895047A1
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- Prior art keywords
- leaf spring
- elastic deformation
- force distribution
- force
- spring according
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Classifications
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- 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
- F24C15/10—Tops, e.g. hot plates; Rings
- F24C15/102—Tops, e.g. hot plates; Rings electrically heated
- F24C15/105—Constructive details concerning the regulation of the temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
- F16F1/22—Leaf springs with means for modifying the spring characteristic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
- F16F1/24—Lubrication; Covers, e.g. for retaining lubricant
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Springs (AREA)
Abstract
Description
-1- La presente invention concerne un ressort lame. Elie concerneThe present invention relates to a leaf spring. Elie is concerned
egalement un appareil electromenager, et de preference une table de cuisson, equipe d'au moins un ressort lame conforme a !'invention. De maniere generale, la presente invention concerne les appareils electromenagers domestiques dans lesquels une carte electronique comprenant des touches capacitives est implantee pour permettre de commander les organes de commande tors de la programmation d'un cycle de fonctionnement et d'effectuer des reglages desdits organes de commande. On connait d'une part des pions et des supports permettant de disposer une carte electronique dans un carter de telle sorte que celle-ci est a proximite de la plaque en vitroceramique de la table de cuisson. Ce type de pions et de supports ne permettent pas d'assurer I'ecartement de la carte electronique avec la plaque en vitroceramique et donc d'endommager les composants de la carte electronique ou de ne pas garantir le fonctionnement de touches capacitives par un eloignement trop important de la carte electronique avec la plaque en vitroceramique. Par ailleurs, on connait des pions munis de ressorts metalliques helicoidaux sur lesquels un element d'isolation avec la carte electronique est indispensable. Ces pions munis de ressorts metalliques helicoidaux ont !'inconvenient de presenter une partie metallique a isoler de la carte electronique pour ne pas creer de perturbations et d'endommagements des circuits electroniques. En outre, ces pions munis de ressorts metalliques helicoidaux necessitent de les assembler avec un support pour realiser la liaison entre lesdits pions et le carter de la table de cuisson. Ledit support est dispose entre le ressort du pion et le carter de maniere a eloigner une extremite dudit pion du carter. Sans ledit support, le pion traverse le carter au travers d'une ouverture lors de la compression du ressort. Ledit pion est dans une position ou une extremite est en saillie par rapport audit carter. La partie du pion en saillie comportant des zones agressives presente un risque de blessure pour I'utilisateur lors de la manipulation de I'appareil. also a household appliance, and preferably a hob, equipped with at least one leaf spring according to the invention. In general, the present invention relates to household appliances in which an electronic card comprising capacitive keys is installed to enable the control elements to be controlled during the programming of an operating cycle and to make adjustments to said control devices. ordered. We know on the one hand pins and supports for disposing an electronic card in a housing so that it is close to the vitroceramic plate of the hob. This type of pins and supports do not make it possible to ensure the spacing of the electronic card with the vitroceramic plate and thus to damage the components of the electronic card or not to guarantee the operation of capacitive keys by a distance too far important of the electronic card with the vitroceramic plate. Moreover, it is known pions provided with helicoidal metal springs on which an insulation element with the electronic card is essential. These pins provided with helicoidal metal springs have the disadvantage of presenting a metal part to be isolated from the electronic card so as not to create disturbances and damage to the electronic circuits. In addition, these pins provided with helicoidal metal springs require to assemble them with a support to achieve the connection between said pins and the cooktop housing. Said support is disposed between the spring of the pin and the housing so as to move one end of said housing pin away. Without said support, the pin passes through the housing through an opening during compression of the spring. Said pin is in a position where an end protrudes from said casing. The portion of the protruding pin with aggressive areas presents a risk of injury to the user when handling the apparatus.
Un tel dispositif d'assemblage d'une carte electronique comporte donc de nombreuses pieces et est relativement couteux a fabriquer. On connait d'autre part des elements ressort se positionnant entre un element chauffant et un carter d'une table de cuisson constituee d'une plaque vitroceramique. Ce type d'element ressort est decrit par exemple dans le document DE3204760. Such an assembly device of an electronic card therefore has many parts and is relatively expensive to manufacture. Spring elements are also known positioned between a heating element and a housing of a hob made of a vitroceramic plate. This type of spring element is described for example in document DE3204760.
Pour que la position de pression de !'element chauffant soit fixee immuablement et que I'element chauffant soit tenu solidement avec le carter, un certain nombre d'elements ressort sont attaches a une distance uniforme les uns des autres sur le dessous de -2- ('element chauffant, la partie support des elements ressort soutenus sur le carter etant couple de maniere rigide en torsion a une patte pliee hors du carter. Cependant, ces element ressort ont ('inconvenient de travailler en flexion et donc de ne pas assurer un mouvement vertical de I'element a supporter. L'element a supporter se deplace dans une direction non determinee. Par consequent, ('element a supporter se retrouve decale par rapport a la zone de positionnement de celui-ci. Cet assemblage engendre des dispersions. De ce fait, la chaine de cote est difficile a maitriser ou les tolerances sont elargies pour pallier a ce probleme. L'element a supporter par lesdits elements ressort peut se retrouver decale par rapport a une zone de serigraphie de la plaque vitroceramique. En outre, cet element ressort ne comprend pas de moyen de repartition des efforts. La deformation dudit element ressort est de ce fait fonction de ['effort applique. Cet element ressort ne permet pas de prevoir un fonctionnement applicable a chaque utilisation de ce dernier. L'utilisation de ce type d'element ressort n'est pas seulement fonction de la raideur. La complexite d'un tel element ressort reside dans la determination des deformations de chaque partie constituant celui-ci. La presente invention a pour but de resoudre les inconvenients pi-kites et de proposer un ressort lame permettant de garantir un fonctionnement fiable et suivant la direction souhaitee. A cet effet, la presente invention vise un ressort lame. Selon I'invention, ledit ressort lame comprend un moyen de repartition des efforts, un moyen de deformation elastique, ledit moyen de repartition des efforts etant dispose en vis-a-vis du moyen de deformation elastique, et ledit moyen de repartition des efforts et ledit moyen de deformation elastique comprennent chacun au moins un moyen de fixation. Ainsi, le ressort lame conforme a ('invention presente un moyen de repartition des efforts adapte a transmettre ('effort applique a un element a supporter de maniere uniforme vers le moyen de deformation elastique. De cette maniere, le deplacement du ressort lame s'effectue suivant une direction determinee. Grace a la precision d'un tel ressort lame, les tolerances d'assemblage peuvent etre reduites. La rigidite du moyen de repartition des efforts permet de transmettre un effort de maniere uniforme. In order for the pressure position of the heating element to be immovably fixed and the heating element to be held securely with the housing, a number of spring elements are attached at a uniform distance from each other to the underside of the housing. the heating element, the support part of the spring elements supported on the casing being torsionally rigidly coupled to a leg folded out of the casing, However, these spring elements have the disadvantage of working in flexion and thus of not ensuring A vertical movement of the element to be supported The element to be supported moves in an undetermined direction, therefore the element to be supported is displaced in relation to the positioning zone thereof. As a result, the dimensioning chain is difficult to master or the tolerances are widened to overcome this problem.The element to be supported by the said spring elements can be found offset with respect to a zone e of serigraphy of the vitroceramic plate. In addition, this element does not include a means of distribution of efforts. The deformation of said spring element is therefore a function of the applied force. This spring element does not allow to provide an operation applicable to each use of the latter. The use of this type of spring element is not only a function of stiffness. The complexity of such an element resides in the determination of the deformations of each part constituting it. The present invention aims to solve the disadvantages pi-kites and to provide a leaf spring to ensure reliable operation and in the desired direction. For this purpose, the present invention is directed to a leaf spring. According to the invention, said leaf spring comprises a force distribution means, an elastic deformation means, said force distribution means being disposed with respect to the elastic deformation means, and said force distribution means and said elastic deformation means each comprise at least one fastening means. Thus, the blade spring according to the invention has a force distribution means adapted to transmit force applied to an element to be uniformly supported towards the elastic deformation means, thereby displacing the leaf spring. The precision of such a leaf spring allows the assembly tolerances to be reduced, and the rigidity of the force distribution means makes it possible to transmit a force in a uniform manner.
En outre, le moyen de repartition des efforts et le moyen de deformation elastique comprennent chacun un moyen de fixation pour permettre une liaison elastique entre les deux elements se fixant au ressort lame. -3-Selon une caracteristique pi-eel-6e de ('invention, ledit moyen de repartition des efforts a une forme en arc de cercle. La forme en arc de cercle du moyen de repartition des efforts est adaptee a limiter les deformations tors de ('application d'un effort sur le ressort lame. Cette forme permet de rigidifier le moyen de repartition des efforts. Selon une autre caracteristique preferee de ('invention, le rnoyen de repartition des efforts est relie au moyen de deformation elastique par au moins un moyen de transmission des efforts. Ledit au moins un moyen de transmission des efforts permet d'assurer que ('effort applique au ressort lame est applique au moyen de deformation elastique. En outre, Ledit au moins un moyen de transmission des efforts permet de rigidifier le ressort lame et d'absorber une partie de ('effort applique audit ressort. Ledit au moins un moyen de transmission des efforts permet egalement de garantir la fiabilite du ressort lame lors d'efforts de traction appliques sur ce dernier. Ledit au moins un moyen de transmission des efforts permet d'eviter la rupture de liaison entre le moyen de repartition des efforts et le moyen de deformation elastique. Ledit ressort lame comprend deux moyens de transmission des efforts reliant une premiere extremite du moyen de repartition des efforts a une premiere extremite du moyen de deformation elastique et une seconde extremite du moyen de repartition des efforts a une seconde extremite du moyen de deformation elastique. Selon une autre caracteristique de ('invention, le moyen de deformation elastique 3 comprend au moins deux lames ayant un effet de ressort. Ainsi, lesdites deux lames ressort permettent d'assurer la deformation du ressort lame et d'en definir sa course. Ces deux lames permettent de repartir la compression du ressort lame sur toute la largeur et non en un point critique. En pratique, le ressort lame est en matiere plastique cle maniere a obtenir a moindre cout un ressort lame. Selon un mode de realisation pratique de I'invention, le ressort lame est adapte a supporter un effort de compression s'etendant dons une plage de 5 a 50N, et preferentiellement de I'ordre de 15N. Le moyen de repartition des efforts et le moyen de deformation elastique comprennent chacun au moins une butee, ladite au moins urie butee du moyen de deformation elastique faisant face a ladite au moins une butee du moyen de repartition des efforts. In addition, the force distribution means and the elastic deformation means each comprise a fixing means to allow an elastic connection between the two elements which are fixed to the leaf spring. According to a feature p-eel-6e of the invention, said force distribution means has an arcuate shape.The arcuate shape of the force distribution means is adapted to limit tors deformation tors de This form makes it possible to stiffen the force distribution means According to another preferred feature of the invention, the means of distributing the forces is connected to the means of elastic deformation by at least one embodiment of the invention. The at least one force transmission means makes it possible to ensure that the force applied to the leaf spring is applied by means of elastic deformation, and said at least one force transmission means makes it possible to to stiffen the leaf spring and to absorb a portion of force applied to said spring, said at least one force transmission means also makes it possible to guarantee the reliability of the leaf spring during applied traction forces. on the latter. Said at least one force transmission means makes it possible to prevent the connection breaking between the force distribution means and the elastic deformation means. Said leaf spring comprises two force transmission means connecting a first end of the force distribution means at a first end of the elastic deformation means and a second end of the force distribution means at a second end of the elastic deformation means. According to another characteristic of the invention, the elastic deformation means comprises at least two blades having a spring effect, whereby said two spring blades make it possible to deform the leaf spring and to define its stroke. two blades make it possible to restart the compression of the leaf spring over the entire width and not at a critical point In practice, the leaf spring is made of plastic so as to obtain a leaf spring at a lower cost. According to the invention, the leaf spring is adapted to withstand a compressive force extending in the range from 5 to 50 N, and preferably in the order of 15 N. The force distribution means and the elastic deformation means each comprise at least a stop, said at least one stop of the elastic deformation means facing said at least one stop of the force distribution means.
Grace aux butees disposees sur le moyen de repartition des efforts et le moyen de deformation elastique, le debattement du ressort lame est maitrise. Lesdites butees permettent d'eviter d'endommager le ressort lame lors de la compression du moyen de -4- deformation elastique. Lesdites butees permettent d'utiliser le ressort lame dans la plage de deformation elastique determinee. En outre, les butees permettent d'assurer la fixation du ressort lame dans une piece en tole en mettant en contact lesdites deux butees. Par ailleurs, le moyen de repartition des efforts comprend au moins un moyen de compensation de jeu. Ainsi, !edit au moins un moyen de compensation de jeu permet d'assurer le plaquage du ressort a lame avec une autre piece, telle qu'une carte electronique. Le moyen de repartition des efforts permet egalement d'augmenter la surface de contact du ressort lame avec ladite carte electronique lors d'un effort applique sur cet ensemble. Thanks to the butees arranged on the means of distribution of the forces and the means of elastic deformation, the displacement of the leaf spring is mastered. Said stops prevent damage to the leaf spring during compression of the elastic deformation means. Said stops allow to use the leaf spring in the determined elastic deformation range. In addition, the stops allow to secure the leaf spring in a sheet metal by contacting said two stops. On the other hand, the force distribution means comprises at least one game compensation means. Thus, at least one game compensation means is used to ensure that the leaf spring is engaged with another piece, such as a blade. electronic card. The force distribution means also makes it possible to increase the contact surface of the leaf spring with said electronic card during a force applied to this assembly.
Selon un second aspect, ('invention concerne egalement une carte electronique comprenant au moins un ressort lame conforme a ('invention. Cette carte electronique presente des avantages analogues a ceux decrits precedemment en reference au premier aspect de ('invention. Selon un troisieme aspect, ('invention concerne egalement un appareil electromenager, et de preference une table de cuisson comprenant au moins un ressort lame conforme a ('invention. Cet appareil electromenager presente des avantages analogues a ceux decrits precedemment en reference au premier et second aspect de ('invention. D'autres particularites et avantages de ('invention apparaitront encore dans la description ci-apres. Aux dessins annexes, donnes a titre d'exemples non limitatifs : - la figure 1 est une vue en perspective d'un ressort lame conforme a un mode de realisation de ('invention ; - la figure 2 est une vue de face d'un ressort lame conforme a un mode de realisation de ('invention ; la figure 3 est une vue schematique d'une carte electronique equipee de trois ressorts lame conformement a un premier mode de realisation de ('invention ; - la figure 4 est une vue schematique d'une carte electronique avec un support equipe de trois ressorts lame conformement a un second mode de realisation de ('invention ; et la figure 5 est une vue en coupe transversale selon la ligne V-V a la figure 4. On va decrire tout d'abord en reference aux figures 1 et 2 un ressort lame selon un mode de realisation de ('invention. Ce ressort lame 1 se presente globalement sous la forme d'un anneau elliptique definie par deux parois concaves en vis-a-vis. Ledit ressort 1 est destine a etre dispose -5- verticalement tors de son utilisation. Le ressort lame 1 comprend un moyen de repartition des efforts 2, un moyen de deformation elastique 3, ledit moyen de repartition des efforts 2 etant dispose en vis-a-vis du moyen de deformation elastique 3. According to a second aspect, the invention also relates to an electronic card comprising at least one leaf spring according to the invention This electronic card has advantages similar to those described previously with reference to the first aspect of the invention. The invention also relates to an appliance, and preferably a hob comprising at least one leaf spring according to the invention.This appliance has advantages similar to those described above with reference to the first and second aspect of the invention. Other features and advantages of the invention will become apparent from the following description: In the accompanying drawings, given by way of non-limiting example: FIG. 1 is a perspective view of a leaf spring according to FIG. An embodiment of the invention is a front view of a leaf spring according to an embodiment of the invention, and FIG. schematic view of an electronic card equipped with three leaf springs according to a first embodiment of the invention; FIG 4 is a schematic view of an electronic card with a support equipped with three leaf springs in accordance with a second embodiment of the invention, and Figure 5 is a cross-sectional view along the line VV in FIG. 4. A leaf spring according to one embodiment of the invention will first be described with reference to FIGS. 1 and 2. This leaf spring 1 is generally in the form of an elliptical ring defined by two concave walls. This spring 1 is intended to be disposed vertically in its use The leaf spring 1 comprises a force distribution means 2, an elastic deformation means 3, said force distribution means 2 being disposed opposite the elastic deformation means 3.
Ledit ressort lame 1 peut titre realise en matiere plastique, tel qu'un polyacetal. Ledit moyen de repartition des efforts 2 et ledit moyen de deformation elastique 3 comprennent chacun au moins un moyen de fixation 6. Ledit au moins un moyen de fixation 6 du moyen de repartition des efforts 2 et ledit au moins un moyen de fixation 6 du moyen de deformation elastique 3 sont des elements d'encliquetage elastique. Lesdits moyens de fixation 6 sont disposes sur des surfaces planes 14 et 15. Lesdites surfaces planes 14 et 15 permettent de mettre en appui le ressort lame 1 contre les pieces a fixer sans creer un point de compression. Par ailleurs, lesdits moyens de fixation 6 presentent des conges (non representes) de maniere a supprimer les aretes agressives. Selon une caracteristique preferee de I'invention, ledit moyen de repartition des efforts 2 a une forme en arc de cercle. La forme en arc de cercle du moyen de repartition des efforts 2 est adaptee a limiter les deformations tors de ('application d'un effort sur le ressort lame 1. Cette forme permet de rigidifier le moyen de repartition des efforts 2. En outre, le moyen de deformation elastique 3 comprend au moins deux lames 10 ayant un effet de ressort. Lesdites au moins deux lames 10 assurent au moyen de deformation elastique 3 I'effet ressort du ressort lame 1. Said leaf spring 1 can be made of plastic, such as a polyacetal. Said force distribution means 2 and said elastic deformation means 3 each comprise at least one fastening means 6. Said at least one attachment means 6 of the force distribution means 2 and said at least one attachment means 6 of the means elastic deformation 3 are elastic snap elements. Said fastening means 6 are disposed on flat surfaces 14 and 15. Said flat surfaces 14 and 15 make it possible to press the leaf spring 1 against the parts to be fixed without creating a point of compression. Furthermore, said attachment means 6 have conges (not shown) so as to remove the aggressive edges. According to a preferred feature of the invention, said force distribution means 2 has an arcuate shape. The arcuate shape of the force distribution means 2 is adapted to limit the torsional deformation of the application of a force to the leaf spring 1. This shape makes it possible to stiffen the force distribution means 2. In addition, the elastic deformation means 3 comprises at least two blades 10 having a spring effect, said at least two blades 10 provide by means of elastic deformation 3 the spring effect of the leaf spring 1.
Ainsi, lesdites au moins deux lames 10 du moyen de deformation 3 permettent de definir la course fonctionnelle d du ressort 1. Dans le mode de realisation de ('invention illustre a la figure 2, la course fonctionnelle d du ressort lame 1 est sensiblement de I'ordre de 3,5mm. Le moyen de repartition des efforts 2 est relie au moyen de deformation elastique 3 par au moins un moyen de transmission des efforts 4. Ledit ressort lame 1 comprend deux moyens de transmission des efforts 4 reliant une premiere extremite du moyen de repartition des efforts 2 a une premiere extremite du moyen de deformation elastique 3 et une seconde extremite du moyen de repartition des efforts 2 a une seconde extremite du moyen de deformation elastique 3. Thus, said at least two blades 10 of the deformation means 3 make it possible to define the functional travel d of the spring 1. In the embodiment of the invention illustrated in FIG. 2, the functional travel d of the leaf spring 1 is substantially of The order of distribution of the forces 2 is connected to the elastic deformation means 3 by at least one means of transmission of the forces 4. Said leaf spring 1 comprises two force transmission means 4 connecting a first end stress distribution means 2 at a first end of the elastic deformation means 3 and a second end of the force distribution means 2 at a second end of the elastic deformation means 3.
Ledit au moins un moyen de transmission des efforts 4 a une forme exterieure en arc de cercle. Dans un mode de realisation pratique de ('invention, la forme exterieure en arc de -6- cercle dudit au moins un moyen de transmission des efforts 4 peut avoir un rayon compris dans une plage s'etendant entre 0,5mm et 3mm, et preferentiellement de I'ordre de 1mm. Lesdits deux moyens de transmission des efforts 4 permettent d'assurer la non deformation du moyen de repartition des efforts 2. Said at least one force transmission means 4 has an outer shape in an arc. In a practical embodiment of the invention, the outer circular arc shape of said at least one force transmission means 4 may have a radius in a range extending between 0.5 mm and 3 mm, and preferably, of the order of 1 mm, said two means of transmission of forces 4 make it possible to ensure the non-deformation of the force distribution means 2.
Par ailleurs, lesdits deux moyens de transmission des efforts 4 permettent de delimiter la course fonctionnelle d du ressort lame 1. Ladite course fonctionnelle d s'etend du au moins un moyen de transmission des efforts 4 a la surface plane 14 du moyen de deformation elastique 3. Ledit au moins un moyen de transmission des efforts 4 comprend une forme interieure en creux 16. Ladite forme en creux 16 comprend une forme arrondie et au moins deux surfaces planes 17. Lors de la compression du ressort lame 1, lesdites aux moins deux surfaces planes 17 de la forme interieure en creux 16 sont en contact de maniere a limiter I'ecrasement dudit ressort lame 1. Lesdits deux moyens de transmission des efforts 4 permettent egalement d'eviter 15 la rupture de la liaison entre le moyen de repartition des efforts 2 et le moyen de deformation elastique 3 tors d'un effort de traction sur le ressort lame 1. Lesdits deux moyens de transmission des efforts 4 permettent aussi de modifier la raideur du ressort lame 1 en fonction de leur dimensionnement. La raideur du ressort lame 1 est notamment ajustable avec I'angle a entre lesdites deux surfaces planes 17 de 20 la forme en creux 16 desdits moyens de transmission des efforts 4. Dans un mode de realisation pratique de ('invention, ('angle a entre lesdites deux surfaces planes 17 de la forme en creux 16 desdits moyens de transmission des efforts 4 est sensiblement de I'ordre de 20 . Le moyen de repartition des efforts 2 et le moyen de deformation elastique 3 25 comprennent chacun au moins une butee 5, ladite au moins une butee 5 du moyen de deformation elastique 3 faisant face a ladite au moins une butee 5 du moyen de repartition des efforts 2. Lesdites butees 5 permettent d'utiliser le ressort lame 1 dans la zone de travail determinee de maniere a ne pas depasser la limite elastique des lames ressort 10. Ladite 30 course e s'etendant entre les deux butees 5 peut etre plus importante que la course fonctionnelle d du ressort lame 1. Lesdites butees 5 permettent de garantir ('utilisation durable du ressort lame 1. Dans un mode de realisation pratique de I'invention, la course e du ressort lame 1 est sensiblement de I'ordre de 4,5mm. 35 Lesdites butees 5 permettent egalement d'assurer la fixation du ressort lame 1 dans un carter et sur une carte electronique par exemple en mettant en appui les surfaces 18 desdites butees 5. -7- De cette maniere, le ressort lame 1 ne peut pas titre endommage tors de son assemblage et les butees 5 permettent d'avoir un element rigide pour faciliter le montage dudit ressort lame 1. Le moyen de deformation elastique 3 comprend au moins un raidisseur 7. Moreover, said two means of transmission of forces 4 allow to delimit the functional race d of leaf spring 1. Said functional race d extends from the at least one means of transmission of forces 4 to the flat surface 14 of the elastic deformation means 3. Said at least one force transmission means 4 comprises a recessed inner shape 16. Said recessed shape 16 comprises a rounded shape and at least two plane surfaces 17. During the compression of the leaf spring 1, said at least two planar surfaces 17 of the recessed inner shape 16 are in contact so as to limit the collapse of said leaf spring 1. Said two force transmission means 4 also make it possible to prevent the connection between the distribution means efforts 2 and the elastic deformation means 3 twisted a tensile force on the leaf spring 1. Said two force transmission means 4 also allow to modify the stiffness of the spring ort blade 1 according to their size. The stiffness of the leaf spring 1 is in particular adjustable with the angle α between said two flat surfaces 17 of the hollow shape 16 of said force transmission means 4. In a practical embodiment of the invention, the angle a between said two flat surfaces 17 of the recessed form 16 of said force transmission means 4 is substantially of the order of 20. The force distribution means 2 and the elastic deformation means 3 each comprise at least one stop 5 said at least one stop 5 of the elastic deforming means 3 facing said at least one stop 5 of the force distribution means 2. Said stops 5 allow the leaf spring 1 to be used in the working area determined in a way that do not exceed the elastic limit of the spring blades 10. Said 30 race e extending between the two stops 5 may be greater than the functional race d of the leaf spring 1. Said stop 5 make it possible to guarantee In a practical embodiment of the invention, the stroke e of the leaf spring 1 is substantially of the order of 4.5 mm. Said stops 5 also make it possible to ensure the fixing of the leaf spring 1 in a housing and on an electronic card, for example by putting the surfaces 18 of said stops 5 in abutment. In this way, the leaf spring 1 can not As a result, torsions of the assembly are damaged, and the stoppers 5 provide a rigid element for facilitating the mounting of said leaf spring 1. The elastic deformation means 3 comprises at least one stiffener 7.
Ledit au moins un raidisseur 7 du moyen de deformation elastique 3 s'etend de part et d'autre de ladite au moins une butee 5 jusqu'auxdits moyens de transmission des efforts 4. Ledit au moins un raidisseur 7 permet d'ajuster ('effort de compression du ressort lame 1. Said at least one stiffener 7 of the elastic deformation means 3 extends on either side of said at least one stop 5 to said means for transmitting forces 4. Said at least one stiffener 7 makes it possible to adjust compression force of the leaf spring 1.
Dans un mode de realisation pratique de ('invention, le ressort lame 1 est adapte a supporter un effort de compression s'etendant dans une plage de 5 a 50N, et preferentiellement de I'ordre de 15N. Le ressort lame 1 peut comprendre des godrons (non representes) disposes sur le moyen de repartition des efforts 2 et sur le moyen de deformation elastique 3 pour permettre ('ejection dudit ressort lame 1 tors du moulage. Le moyen de repartition des efforts 2 comprend au moins un moyen de compensation de jeu 8. Le moyen de repartition des efforts 2 comprend un moyen de compensation de jeu 8 de part et d'autre dudit au moins un moyen de fixation 6 dudit moyen de repartition des efforts 2. Ledit au moins un moyen de compensation de jeu 8 a au moins une partie en forme d'arc de cercle. Lesdits moyens de compensation de jeu 8 permettent de plaquer le ressort lame 1 sur un une autre piece telle qu'une carte electronique par exemple. In a practical embodiment of the invention, the leaf spring 1 is adapted to withstand a compressive force extending in a range from 5 to 50N, and preferably of the order of 15N. godrons (not shown) arranged on the force distribution means 2 and on the elastic deformation means 3 to allow said molded leaf spring 1 to be ejected The force distribution means 2 comprises at least one means for compensating 8. The force distribution means 2 comprises a game compensation means 8 on either side of said at least one attachment means 6 of said force distribution means 2. Said at least one game compensation means 8 at least one arc-shaped portion, said clearance compensation means 8 enable the leaf spring 1 to be pressed onto another piece such as an electronic card, for example.
Ces derniers permettent egalement de garantir la fixation du ressort lame 1 sur ladite carte electronique. Dans le cas ou la fixation n'est pas realisee completement, lesdits moyens de compensation de jeu 8 poussent le ressort lame 1 et donc I'operateur assemblant ce composant peut se rendre compte du dysfonctionnement. Ledit au moins un moyen de compensation du jeu 8 permet egalement d'augmenter la surface de contact du ressort lame avec ladite carte electronique lors d'un effort applique sur cet ensemble. Dans ce mode de realisation de ('invention, le ressort lame 1 comprend un axe de symetrie vertical 9 passant par le centre desdites au moins une butee 5 du moyen de repartition des efforts 2 et du moyen de deformation elastique 3. These also make it possible to guarantee the attachment of the leaf spring 1 to said electronic card. In the case where the attachment is not completed completely, said play compensation means 8 push the leaf spring 1 and thus the operator assembling this component can be aware of the malfunction. Said at least one means for compensating the clearance 8 also makes it possible to increase the contact surface of the leaf spring with said electronic card during a force applied to this assembly. In this embodiment of the invention, the leaf spring 1 comprises a vertical axis of symmetry passing through the center of said at least one stop 5 of the force distribution means 2 and the elastic deformation means 3.
Ainsi, la repartition de ('effort applique sur le ressort lame 1 est sensiblement egale sur les deux lames ressort 10 du moyen de deformation elastique 3. On a illustre sur les figures 3 a 5, a titre d'exemples non lirnitatifs, le montage de 2895047 -8- trois ressorts a lame 1 conformes a ('invention sur une carte electronique 11 et sur un support 12 de carte electronique 11. Dans ces exemples de realisation, le ressort lame 1 est fixs par exemple par clippage sur une carte electronique 11 ou un support 12 de carte electronique 11. Thus, the distribution of stress applied to the leaf spring 1 is substantially equal to the two spring blades 10 of the elastic deformation means 3. FIGS. 3 to 5 illustrate, as non-limiting examples, the assembly three blade springs 1 according to the invention on an electronic card 11 and on a support 12 of electronic card 11. In these embodiments, the leaf spring 1 is fixed for example by clipping on an electronic card. 11 or a support 12 of electronic card 11.
5 Ladite carte electronique peut comprendre des touches capacitives 13. Dans ces modes de realisation de ('invention, la carte electronique 11 ou le support 12 comprend 3 ressorts lame 1. Le nombre de ressorts lame 1 est determine de maniere a repartir les efforts. Bien entendu, le nombre de ressorts lame 1 n'est donne qu'a titre d'exemples non 10 limitatifs. Le nombre de ressorts lame 1 est fonction de la taille de la carte electronique 11 ou du support 12 et du nombre de touches capacitives 13 disposees sur ces derniers. Les moyens de fixation 6 du ressort lame 1 sont adaptes a se loger dans des ouvertures menagees dans la carte electronique 11 ou le support 12 ou encore dans un carter (non represents). Le support 12 de la carte electronique 11 peut titre en matiere 15 plastique et le carter d'un appareil electromenager peut titre en tole. Le ressort lame 1 peut titre utilise de maniere reversible. Le moyen de deformation elastique 3 peut etre situe au plus pres de la carte electronique 11 ou du support 12 ou bien a I'oppose. En outre, le ressort lame 1 permet d'isoler electriquement la carte electronique 11 20 sans ajouter de pieces supplementaires. Ces exemples de realisation sont applicables pour un appareil electromenager, et notamment pour une table de cuisson. Ces ressorts lame 1 permettent de positionner la carte electronique 11 par rapport a la serigraphie d'une plaque en vitroceramique de la table de cuisson.Said electronic card may comprise capacitive keys 13. In these embodiments of the invention, the electronic card 11 or the support 12 comprises 3 leaf springs 1. The number of leaf springs 1 is determined so as to distribute the forces. Of course, the number of leaf springs 1 is given as non-limiting examples The number of leaf springs 1 is a function of the size of the electronic board 11 or the support 12 and the number of capacitive keys 13 The fixing means 6 of the leaf spring 1 are adapted to be housed in openings in the electronic card 11 or the support 12 or in a housing (not shown) .The support 12 of the electronic card 11 plastic material and the housing of a household appliance may be made of sheet metal The leaf spring 1 may be used in a reversible manner The elastic deformation means 3 may be located closest to the electronic card 11 or the support 12 or the opposite. In addition, the leaf spring 1 can electrically isolate the electronic card 11 20 without adding additional parts. These examples of embodiment are applicable for a household appliance, and in particular for a hob. These leaf springs 1 make it possible to position the electronic card 11 with respect to the screen printing of a vitroceramic plate of the hob.
25 Par ailleurs, le montage de ressorts lame conforme a ('invention permet de reduire le cout de fabrication d'une table de cuisson. L'assemblage de tels ressorts a lame sur le carter dune table de cuisson ne presente pas de zones agressives en depassement du carter. L'utilisation de tels ressorts lame 1 permet de reduire les tolerances de jeu 30 fonctionnel pour ('assemblage d'une carte electronique 11 dans une table de cuisson. Bien entendu, de nombreuses modifications peuvent titre apportees a ('exemple de realisation decrit precedemment sans sortir du cadre de I'invention.Furthermore, the mounting of leaf springs according to the invention makes it possible to reduce the cost of manufacture of a hob.The assembly of such leaf springs on the hob of a hob does not present aggressive zones. The use of such leaf springs 1 makes it possible to reduce the functional play tolerances for the assembly of an electronic board 11 in a hob Of course, numerous modifications may be made to the example embodiment described above without departing from the scope of the invention.
Claims (18)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0513203A FR2895047B1 (en) | 2005-12-19 | 2005-12-19 | SPRING BLADE IN PARTICULAR FOR HOUSEHOLD APPLIANCE OF THE COOKTOP TYPE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0513203A FR2895047B1 (en) | 2005-12-19 | 2005-12-19 | SPRING BLADE IN PARTICULAR FOR HOUSEHOLD APPLIANCE OF THE COOKTOP TYPE |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2895047A1 true FR2895047A1 (en) | 2007-06-22 |
| FR2895047B1 FR2895047B1 (en) | 2012-03-09 |
Family
ID=36956062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0513203A Expired - Fee Related FR2895047B1 (en) | 2005-12-19 | 2005-12-19 | SPRING BLADE IN PARTICULAR FOR HOUSEHOLD APPLIANCE OF THE COOKTOP TYPE |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2895047B1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007055310A1 (en) * | 2007-11-20 | 2009-05-28 | BSH Bosch und Siemens Hausgeräte GmbH | hob |
| WO2012089543A3 (en) * | 2010-12-28 | 2012-08-23 | BSH Bosch und Siemens Hausgeräte GmbH | Hob |
| EP2703726A1 (en) * | 2012-09-03 | 2014-03-05 | BSH Bosch und Siemens Hausgeräte GmbH | Hotplate device |
| EP2818799A1 (en) * | 2013-06-17 | 2014-12-31 | E.G.O. Elektro-Gerätebau GmbH | Holding device for an assembly and electric device |
| EP2849532A1 (en) * | 2013-09-11 | 2015-03-18 | BSH Bosch und Siemens Hausgeräte GmbH | Cooking hob |
| CN104832957A (en) * | 2015-05-20 | 2015-08-12 | 深圳市创新先进科技有限公司 | Electromagnetic oven with adjustable heating surface |
| EP3945247A1 (en) * | 2020-07-30 | 2022-02-02 | BSH Hausgeräte GmbH | Domestic appliance and method for installing same |
| EP4194758A1 (en) * | 2021-12-10 | 2023-06-14 | E.G.O. Elektro-Gerätebau GmbH | Operating device for an electrical domestic appliance and electrical domestic appliance |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3204760A1 (en) * | 1982-02-11 | 1983-08-18 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Cooking top made of glass-ceramic material with a radiant heating element |
| DE10004015A1 (en) * | 2000-01-31 | 2001-08-02 | Florian Heidinger | Spring element and method for constructing a spring element |
| US6530562B1 (en) * | 2001-12-19 | 2003-03-11 | Visteon Global Technologies, Inc. | Automotive beam spring |
| DE10141432A1 (en) * | 2001-08-23 | 2003-03-27 | Continental Ag | Leaf spring is made up of two fiber-reinforced plastic sections mounted in slits in rubber, plastic, ceramic or metal connectors at either end, force transmitting mountings being fitted on them at center |
| US20040021123A1 (en) * | 2000-04-26 | 2004-02-05 | Howell Larry L | Compliant, ortho-planar, linear motion spring |
-
2005
- 2005-12-19 FR FR0513203A patent/FR2895047B1/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3204760A1 (en) * | 1982-02-11 | 1983-08-18 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Cooking top made of glass-ceramic material with a radiant heating element |
| DE10004015A1 (en) * | 2000-01-31 | 2001-08-02 | Florian Heidinger | Spring element and method for constructing a spring element |
| US20040021123A1 (en) * | 2000-04-26 | 2004-02-05 | Howell Larry L | Compliant, ortho-planar, linear motion spring |
| DE10141432A1 (en) * | 2001-08-23 | 2003-03-27 | Continental Ag | Leaf spring is made up of two fiber-reinforced plastic sections mounted in slits in rubber, plastic, ceramic or metal connectors at either end, force transmitting mountings being fitted on them at center |
| US6530562B1 (en) * | 2001-12-19 | 2003-03-11 | Visteon Global Technologies, Inc. | Automotive beam spring |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007055310A1 (en) * | 2007-11-20 | 2009-05-28 | BSH Bosch und Siemens Hausgeräte GmbH | hob |
| US8378270B2 (en) | 2007-11-20 | 2013-02-19 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Ceramic hob |
| WO2012089543A3 (en) * | 2010-12-28 | 2012-08-23 | BSH Bosch und Siemens Hausgeräte GmbH | Hob |
| EP2703726A1 (en) * | 2012-09-03 | 2014-03-05 | BSH Bosch und Siemens Hausgeräte GmbH | Hotplate device |
| EP2818799A1 (en) * | 2013-06-17 | 2014-12-31 | E.G.O. Elektro-Gerätebau GmbH | Holding device for an assembly and electric device |
| EP2849532A1 (en) * | 2013-09-11 | 2015-03-18 | BSH Bosch und Siemens Hausgeräte GmbH | Cooking hob |
| CN104832957A (en) * | 2015-05-20 | 2015-08-12 | 深圳市创新先进科技有限公司 | Electromagnetic oven with adjustable heating surface |
| EP3945247A1 (en) * | 2020-07-30 | 2022-02-02 | BSH Hausgeräte GmbH | Domestic appliance and method for installing same |
| EP4194758A1 (en) * | 2021-12-10 | 2023-06-14 | E.G.O. Elektro-Gerätebau GmbH | Operating device for an electrical domestic appliance and electrical domestic appliance |
Also Published As
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|---|---|
| FR2895047B1 (en) | 2012-03-09 |
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