EP0302070A1 - Miniature switch with sudden break. - Google Patents

Miniature switch with sudden break.

Info

Publication number
EP0302070A1
EP0302070A1 EP87902544A EP87902544A EP0302070A1 EP 0302070 A1 EP0302070 A1 EP 0302070A1 EP 87902544 A EP87902544 A EP 87902544A EP 87902544 A EP87902544 A EP 87902544A EP 0302070 A1 EP0302070 A1 EP 0302070A1
Authority
EP
European Patent Office
Prior art keywords
common terminal
leaf spring
movable blade
switch
housing
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
EP87902544A
Other languages
German (de)
French (fr)
Other versions
EP0302070B1 (en
Inventor
Roger Vialy
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0302070A1 publication Critical patent/EP0302070A1/en
Application granted granted Critical
Publication of EP0302070B1 publication Critical patent/EP0302070B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift

Definitions

  • the present invention relates to miniature snap switches. They include, inside a molded plastic case, a tilting blade mechanism actuated by an external pusher, this blade, pivoting on a common terminal, ensures electrical continuity ⁇ alternately between the common terminal and two separate tanks .
  • FIG. 2 shows that the displacement of the pusher down causes the abrupt passage of the movable contact (8) from (10) to (11), when the arms (17) of the blade (18) exceed the notch (12). Electrical continuity is then ensured between the common terminal (14) and the terminal (11).
  • the contact force of (8) is then a result of the tension of the arms (15) and (16) of the moving blade.
  • Fig. 4 shows the diagram corresponding to the type of switch shown on board 1/4. The force of action on the pusher increases from (20) to (21), tipping point of the movable blade when the arms (17) exceed the notch (12), the movable contact (8) suddenly passes from (10 ) in (11).
  • the object of the invention is to create a snap-action switch having a large adaptability, a relatively constant operating force, a low manufacturing cost, a limited number of parts which are particularly suitable for automated manufacturing and assembly. , and good electrical, mechanical and reliability performance.
  • the invention shown in plate 2/3 fig. 5, 6, and 7 in positions comparable to those of the board 1/3 consists of a movable blade (38), articulated in the notch (32) of a common inclined terminal (34), by its part pivoting (36).
  • This blade is held in tension by a blade-shaped spring (35), fixed by various known means to the inclined terminal. (34), and whose other free end, shouldered, is engaged in a slot (33) of the movable blade (38).
  • This configuration has as particularity, the progressive detachment of the leaf spring (35) the inclined terminal (34), as the plunger (39) is pressed.
  • the shape and dimensions of the leaf spring and the movable blade, their physical characteristics, determine the values of the reaction force on the pusher and the tensile force on the movable blade, on which the bearing forces on the contacts.
  • the inclination of the common terminal determines the variation of the operating force. The choice of these characteristics will be made according to the need.
  • the inclination of the plane of the common terminal (34), on which the spring-1-core (35) takes place, relative to the average position of the movable blade (38) defined by a horizontal of the case, is between 40 ° and 50 ° angle (a) fig. 5. This value is optimal for the application considered.
  • the inclination can vary from 35 ° to 75 °, the large angles favor the constancy of the operating force and vice versa.
  • the invention by its construction, allows high intensity currents.
  • the central part (36) of the movable blade (38), which is the main conductor of the current, has no spring function. Consequently, the blade can have a sufficient section, and be made of a metal having good electrical conductivity.
  • the leaf spring (35) will be formed of a metal having good mechanical characteristics and more particularly those of resistance to fatigue, even at the expense of its electrical conductivity, since it is not the main conductor electric current.
  • the invention provides ease of mounting the device.
  • the movable blade (38), the common terminal (34) and the leaf spring (35) which is integral with it, constitute a homogeneous one-piece sub-assembly. Indeed we can see fig.
  • the invention also relates to construction features which allow a lower cost to solve certain problems related to the assembly of the product, as well as the mounting of its accessories. Plate 3/3, fig. 9, 10, 11 and 12 explain these characteristics in detail.
  • Fig. 9 shows, by way of example, a miniature switch equipped with a lever (51) with a roller (61). This lever pivots around an axis (60) which can, at will, be placed in the other holes (52) of the housing-cover assembly, in order to be able to vary the operating force and the action stroke of the the sink.
  • Fig. 12 is a section showing the same axis (60) also used as the pivot axis of the roller (61).
  • This axis which is molded in a suitable thermoplastic material with a single press stroke, thanks to the accordion shape of its central part, can, because of its elasticity, be sufficiently reduced in length, to penetrate the yoke formed by the cover box or by the lever. Placed in alignment with the concordant holes in the housing or the lever yoke, it returns to its original size.
  • the characteristic of this axis is that it can be disassembled and reassembled without deterioration, to change or replace the lever or the roller, manually with simple means.
  • the assembly of the cover (58) on the housing (57) is generally done by rivets or by fusion of studs, which makes disassembly impossible.
  • the cut fig. 11 shows another means of holding the cover, when the case (57) is made of thermoplastic material.
  • the chimney (62) as well as the studs (54) and (59), end in the form of a collar.
  • the corresponding holes in the cover are tapered and end in a clearance.
  • This fixing means tolerates some disassembly, and allows if necessary, fusion welding of the studs with the cover.
  • the cones in the studs are provided to facilitate demoulding of the collar without deterioration of the latter.
  • - Fig. 1 is the section through a switch in the high contact position.
  • - Fig. 2 is the section of a switch in the low contact position.
  • - Fig. 3 is a perspective of the abrupt rupture organ of 1 or 2.
  • - Fig. 4 is the stroke-force diagram of maneuver of 1 and 2.
  • - Fig. 5 is the section of the switch object of the invention high contact.
  • - £ _a fig. 6 is the section of the switch object of the invention low contact.
  • - Fig. 7 is a perspective of the abrupt rupture member of 6 or 7.
  • - Fig. 8 is the stroke-force diagram of maneuvers of 6 and 7.
  • Fig. 9 shows the switch seen from the front with lever.
  • - Fig. 10 represents it seen from the left.
  • - Fig. 11 is the section according to (AA 1 ).
  • the realization of the invention does not pose any particular problem in the industry specialized in the manufacture of this type of product.
  • the leaf spring (35) must be assembled on the common terminal (34) so that: the two parts are well aligned, the leaf spring can be detached from the common terminal and the electrical connection between the two pieces are perfect. It is recommended to bend the end of the leaf spring at around 45 °, (P) fig- 7, in order to facilitate the introduction of the leaf spring into the hole (33).

Abstract

Commutateur du type à lame basculante dans lequel, le ressort-lame (35) assure la tension de la lame mobile (38) et le rappel du poussoir (39), sous l'action du poussoir (39) le ressort-lame (35) décolle progressivement de la borne inclinée (34); la valeur de l'inclinaison est donnée pour les produits conformes à la norme (DIN 41635, forme A); le système de fermeture du boîtier comprend des collerettes qui retiennent le couvercle; l'axe des accessoires est moulé en une seule opération.Tilting blade type switch in which the leaf spring (35) ensures the tension of the movable blade (38) and the return of the plunger (39), under the action of the plunger (39) the leaf spring (35 ) gradually takes off from the inclined terminal (34); the inclination value is given for products conforming to the standard (DIN 41635, form A); the case closure system includes flanges that hold the cover; the axis of the accessories is molded in a single operation.

Description

COMMUTATEUR MINIATURE- A RUPTURE BRUSQUE SWITCHED MINIATURE SWITCH
La présente invention concerne les commutateurs miniatures à rupture brusque. Ils comprennent, à l'intérieur d'un boitier en matière plastique moulée, un mécanisme à lame basculante actionnée par un poussoir extérieur, cette lame, pivotant sur une borne commune, assure la continuité électrique^alternativement entre la borne commune et deux bernes distinctes.The present invention relates to miniature snap switches. They include, inside a molded plastic case, a tilting blade mechanism actuated by an external pusher, this blade, pivoting on a common terminal, ensures electrical continuity ^ alternately between the common terminal and two separate tanks .
Les principes de fonctionnement de ces appareils sont bien connus et décrits dans de nombreux brevets. On peut citer à titre d'exemple, les brevets français suivants : n° 1 182508, n° 2 072376, n° 2472827 n° 2 531 262.The operating principles of these devices are well known and described in numerous patents. By way of example, mention may be made of the following French patents: No. 1,182,508, No. 2,072,376, No. 2,472,827 No. 2,531,262.
Leur utilisation comme composants d'automatismes doit satisfaire aux conditions d'agrément des normes internationales, dont en parti¬ culier : interchangeabilité, isolation électrique, fiabilité, absence de point d'équilibre, faible force de manoeuvre, fort pouvoir de coupure. Le grand développement du marché ayant induit une forte concur¬ rence, les constructeurs ont été amenés à concevoir des produits du plus faible coût de revient. Pour cela, ces produits doivent comporter un nombre minimum de pièces dont les formes doivent être compatibles avec les moyens automatiques de fabrication de montage et de contrôle.Their use as automation components must meet the conditions for approval of international standards, including in particular: interchangeability, electrical insulation, reliability, absence of equilibrium, low operating force, high breaking capacity. The great development of the market having induced a strong competition, the manufacturers were brought to design products of the lowest cost price. For this, these products must include a minimum number of parts, the shapes of which must be compatible with the automatic means of manufacturing, assembly and control.
Un des mécanismes parmi les plus simples est décrit dans le brevet français n° 1 182 508 demandé le 03/09/57. Son principe qui a servi de base à plusieurs types de produits, fabriqués actuellement en très grandes quantités, est rappelé dans les figures de la planche 1/3 : • Ce dispositif comprend, une lame mobile élastique (18) fig. 3 articulée dans les encoches (12) et (13) formées de part et d'autre dans la borne commune (14) fig.1. La position de ces encoches et la longueur des bras (15) et (16) de la lame (18), déterminent une déformation élas¬ tique de ces bras, créant ainsi une force de réaction sur la borne (10). Un ressort (19) placé sous la lame (18) s'oppose au déplacement du pous¬ soir (9); la fig. 2 montre que le déplacement du poussoir vers le bas provoque le passage brusque du contact mobile (8) de (10) en (11), lorsque les bras (17) de la lame (18) dépassent l'encoche (12). La continuité électrique est alors assurée entre la borne commune (14) et la borne (11). La force de contact de (8) est alors une résultante de la tension des bras (15) et (16) de lame mobile. On représente habituellement la force d'action (F) sur le poussoir en fontion de sa course (C) par un diagramme. La fig. 4 montre le dia¬ gramme correspondant au type de commutateur représenté à la planche 1/4. La force d'action sur le poussoir augmente de (20) à (21), point de basculement de la lame mobile lorsque les bras (17) dépassent l'encoche (12), le contact mobile (8) passe brusquement de (10) en (11). La force d'action chute au point (22), car elle est diminuée de la force nécessaire à la tension du bras (16). De (22) à (23) la force d'action croit de nouveau régulièrement, jusqu'à ce que le ressort (19) soit totalement comprimé comme le montre la fig. 2. Au retour le processus s'inverse, de (23) à (24) la force d'action décroît; quand les bras (17) dépassent l'encoche (12) le contact (8) passe brusquement de (11) en (10). La force d'action est augmentée en (25) de la tension du bras (16) puis décroît de nouveau jusqu'en (20). Dans cette représentation graphique, le déplacement de (20) à (27) s'appelle habituellement la course d'approche, de (27) à (26) l'après-course, de (27) à (28) la course différentielle. Ce diagramme montre une augmentation relativement importante de la force d'action, ce qui n'est pas favorable pour les commutateurs sensibles où l'on cherche une faible force de manoeuvre. De plus, toute variation importante des forces de commande a pour conséquence une fatigue accrue des organes mécaniques, donc une diminution de la longévité du produit.One of the simplest mechanisms is described in French patent n ° 1,182,508 requested on 03/09/57. Its principle, which has served as the basis for several types of products, currently produced in very large quantities, is recalled in the figures on plate 1/3: • This device comprises, an elastic movable blade (18) fig. 3 articulated in the notches (12) and (13) formed on either side in the common terminal (14) fig.1. The position of these notches and the length of the arms (15) and (16) of the blade (18), determine an elastic deformation of these arms, thus creating a reaction force on the terminal (10). A spring (19) placed under the blade (18) opposes the movement of the pous¬ evening (9); fig. 2 shows that the displacement of the pusher down causes the abrupt passage of the movable contact (8) from (10) to (11), when the arms (17) of the blade (18) exceed the notch (12). Electrical continuity is then ensured between the common terminal (14) and the terminal (11). The contact force of (8) is then a result of the tension of the arms (15) and (16) of the moving blade. We usually represent the action force (F) on the pusher according to its stroke (C) by a diagram. Fig. 4 shows the diagram corresponding to the type of switch shown on board 1/4. The force of action on the pusher increases from (20) to (21), tipping point of the movable blade when the arms (17) exceed the notch (12), the movable contact (8) suddenly passes from (10 ) in (11). The force of action drops at point (22), because it is reduced by the force necessary for the tension of the arm (16). From (22) to (23) the force of action increases again regularly, until the spring (19) is fully compressed as shown in fig. 2. On return the process is reversed, from (23) to (24) the force of action decreases; when the arms (17) exceed the notch (12) the contact (8) suddenly passes from (11) to (10). The force of action is increased at (25) by the tension of the arm (16) then decreases again until (20). In this graphical representation, the displacement from (20) to (27) is usually called the approach race, from (27) to (26) after the race, from (27) to (28) the differential race . This diagram shows a relatively large increase in the force of action, which is not favorable for sensitive switches where a weak operating force is sought. In addition, any significant variation in the control forces results in increased fatigue of the mechanical components, therefore a decrease in the longevity of the product.
La grande variété d'applications industrielles de ce type de produit demande une large souplesse d'adaptation. On devra pouvoir faire varier dans de grandes proportions ses caractéristiques.The wide variety of industrial applications for this type of product requires a wide flexibility of adaptation. We must be able to vary its characteristics in large proportions.
L'invention a pour objet de créer un commutateur à rupture brusque ayant une large capacité d'adaptation, une force de manoeuvre relative¬ ment constante, un coût de fabrication bas, un nombre limité de pièces particulièrement adaptées à la fabrication et au montage automatisés, et de bonnes performances électriques, mécaniques et de fiabilité.The object of the invention is to create a snap-action switch having a large adaptability, a relatively constant operating force, a low manufacturing cost, a limited number of parts which are particularly suitable for automated manufacturing and assembly. , and good electrical, mechanical and reliability performance.
L'invention représentée à la planche 2/3 fig. 5, 6, et 7 dans des positions comparables à celles de la planche 1/3 se compose d'une lame mobile (38), articulée dans l'encoche (32) d'une borne commune inclinée (34), par sa partie pivotante (36). Cette lame est maintenue en tension par un ressort en forme de lame (35), fixé par divers moyens connus à la borne inclinée. (34), et dont l'autre extrémité libre, épaulée, est engagée dans une lumière (33) de la lame mobile (38). Cette configuration a comme particularité, le décollement progressif du ressort-lame (35) de la borne inclinée (34), au fur et à mesure de l'enfoncement du poussoir (39). Ce qui a pour conséquence de faire varier le point d'encastrement fictif du ressort-lame (35) sur la borne inclinée (34), qui correspond à leur point de tangence, jusqu'au basculement de (8) sur le contact (31). La propriété caractéristique de ce ressort-lame est de fournir une force de tension relativement constante, car sa longueur active augmente en même temps que sa flexion. Il en résulte que la force de manoeuvre sur le poussoir varie peu. Cette aptitude sera mieux comprise à l'examen du diagramme de la fig. 8. Le fonctionnement s'effectue dans une petite plage de variation de forces. En effet, la variation de la force d'action dans ses valeurs extrêmes : minimales (49) et (44), maximales (41) et (43), est proportionnellement plus faible que dans le cas cité fig. 4.The invention shown in plate 2/3 fig. 5, 6, and 7 in positions comparable to those of the board 1/3 consists of a movable blade (38), articulated in the notch (32) of a common inclined terminal (34), by its part pivoting (36). This blade is held in tension by a blade-shaped spring (35), fixed by various known means to the inclined terminal. (34), and whose other free end, shouldered, is engaged in a slot (33) of the movable blade (38). This configuration has as particularity, the progressive detachment of the leaf spring (35) the inclined terminal (34), as the plunger (39) is pressed. This has the effect of varying the fictitious installation point of the leaf spring (35) on the inclined terminal (34), which corresponds to their point of tangency, until tilting of (8) on the contact (31 ). The characteristic property of this leaf spring is to provide a relatively constant tensile force, since its active length increases at the same time as its bending. As a result, the operating force on the pusher varies little. This ability will be better understood on examining the diagram in FIG. 8. Operation takes place within a small range of force variation. Indeed, the variation of the force of action in its extreme values: minimum (49) and (44), maximum (41) and (43), is proportionally smaller than in the case cited in fig. 4.
La forme et les dimensions du ressort-lame et de la lame mobile, leurs caractéristiques physiques, déterminent les valeurs de la force de réaction sur le poussoir et de la force de traction sur la lame mobile, dont dépendent les forces d'appui sur les contacts. L'inclinaison de la borne commune détermine la variation de la force de manoeuvre. Le choix de ces caractéristiques sera fait en fonction du besoin.The shape and dimensions of the leaf spring and the movable blade, their physical characteristics, determine the values of the reaction force on the pusher and the tensile force on the movable blade, on which the bearing forces on the contacts. The inclination of the common terminal determines the variation of the operating force. The choice of these characteristics will be made according to the need.
Le produit représenté, à titre d'exemple, satisfait à la Norme Internationale (DIN 41635, forme A), s'applique aussi bien aux commuta¬ teurs à forte intensité de courant et grand écartement de contacts. qu'aux commutateurs sensibles à faible force de manoeuvre. Dans ce cas l'inclinaison du plan de la borne commune (34), sur lequel se déroule le ressort-1-ame (35), par rapport à la position moyenne de la lame mobile (38) définie par une horizontale du boitier, est comprise entre 40° et 50° angle (a) fig. 5. Cette valeur est optimale pour l'application consi¬ dérée. Dans les autres cas, l'inclinaison peut varier de 35° à 75°, les grands angles favorisent la constance de la force de manoeuvre et inversement. L'invention, par sa construction, permet les courants de fortes intensités. La partie centrale (36) de la lame mobile (38), qui est le conducteur principal du courant, n'a pas de fonction ressort. En conséquence la lame peut avoir une section suffisante, et être constituée d'un métal ayant une bonne conductibilité électrique. Par contre, le res- sort-lame (35) sera formé d'un métal ayant de bonnes caractéristiques mécaniques et plus particulièrement celles de résistance à la fatigue, même au détriment de sa conductibilité électrique, car il n'est pas le conducteur principal du courant électrique. L'invention apporte une facilité de montage de l'appareil. La lame mobile (38), la borne commune (34) et le ressort-lame (35) qui lui est solidaire, constituent un sous-ensemble monobloc homogène. En effet on peut voir fig. 7, que le ressort-lame, par sa tension, tire la lame mobile dans l'encoche (32) et la maintient dans la position représentée, contre l'arête (40) qui lui sert d'appui. L'extrémité libre du ressort- lame (35), engagée jusqu'à ses épaulements dans la lumière (33) de la lame mobile (38), forme avec celui-ci une articulation souple. Ce sous-ensemble peut s'introduire facilement dans le boitier du commutateur manuellement, ou avec des moyens automatiques. Le montage ultérieur du contact fixe (30) et du poussoir (39), dégage la lame mobile de son appui (40), et ainsi l'arme, pour assurer la force de contact nécessaire. Ce système de sous-assemblage permet un auto-centrage de la lame mobile sur la borne commune par la tension du ressort-lame. De ce fait, la largeur de la lame mobile peut être maximale, ce qui est favorable pour les caractéristiques mécaniques et électriques du produit.The product shown, by way of example, meets the International Standard (DIN 41635, form A), applies equally well to switches with high current intensity and large contact spacing. than sensitive switches with low operating force. In this case the inclination of the plane of the common terminal (34), on which the spring-1-core (35) takes place, relative to the average position of the movable blade (38) defined by a horizontal of the case, is between 40 ° and 50 ° angle (a) fig. 5. This value is optimal for the application considered. In the other cases, the inclination can vary from 35 ° to 75 °, the large angles favor the constancy of the operating force and vice versa. The invention, by its construction, allows high intensity currents. The central part (36) of the movable blade (38), which is the main conductor of the current, has no spring function. Consequently, the blade can have a sufficient section, and be made of a metal having good electrical conductivity. On the other hand, the leaf spring (35) will be formed of a metal having good mechanical characteristics and more particularly those of resistance to fatigue, even at the expense of its electrical conductivity, since it is not the main conductor electric current. The invention provides ease of mounting the device. The movable blade (38), the common terminal (34) and the leaf spring (35) which is integral with it, constitute a homogeneous one-piece sub-assembly. Indeed we can see fig. 7, that the leaf spring, by its tension, pulls the movable blade in the notch (32) and maintains it in the position shown, against the edge (40) which serves as its support. The free end of the leaf spring (35), engaged up to its shoulders in the opening (33) of the movable blade (38), forms therewith a flexible articulation. This sub-assembly can easily be introduced into the switch housing manually, or with automatic means. The subsequent mounting of the fixed contact (30) and the pusher (39) releases the movable blade from its support (40), and thus the weapon, to ensure the necessary contact force. This sub-assembly system allows self-centering of the movable blade on the common terminal by the tension of the leaf spring. Therefore, the width of the movable blade can be maximum, which is favorable for the mechanical and electrical characteristics of the product.
L'invention porte également sur des particularités de construction qui permettent à un moindre coût, de résoudre certains problèmes liés à l'assemblage du produit, ainsi qu'au montage de ses accessoires. La plan¬ che 3/3, fig. 9, 10, 11 et 12 expose en détail ces caractéristiques.The invention also relates to construction features which allow a lower cost to solve certain problems related to the assembly of the product, as well as the mounting of its accessories. Plate 3/3, fig. 9, 10, 11 and 12 explain these characteristics in detail.
Le montage des leviers qui sont les accessoires principaux des commutateurs miniatures, doit pouvoir aussi être réalisé par l'utilisateur. La fig. 9 représente, à titre d'exemple, un commutateur miniature équipé d'un levier (51) à galet (61). Ce levier pivote autour d'un axe (60) qui peut, à volonté, être placé dans les autres trous (52) de l'ensemble boitier-couvercle, afin de pouvoir faire varier la force de manoeuvre et la course d'action du levier. La fig. 12 est une coupe qui montre le même axe (60) utilisé également comme axe de pivotement du galet (61). Cet axe qui est moulé dans une matière thermoplastique adéquate d'un seul coup de presse, grâce à la forme en accordéon de sa partie centrale, peut, du fait de son élasticité, être suffisamment réduit en longueur, pour pénétrer dans la chape formée par le boitier-couvercle ou par le levier. Placé en alignement avec les trous concordants du boitier ou de la chape du levier, il reprend sa dimension initiale .pour servir de • pivot au levier (51) et au galet (61). La caractéristique de cet axe est de pouvoir être démonté et remonté sans détérioration, pour changer ou remplacer le levier ou le galet, manuellement avec des moyens simples. L'assemblage du couvercle (58) sur le boitier (57) se fait en général par rivets ou par fusion de plots, ce qui rend le démontage impossible. La coupe fig. 11 montre un autre moyen de tenue du couvercle, lorsque le boitier (57) est en matière thermoplastique. Les tenons (54) et (59) ainsi que la cheminée (62) du trou de fixation, voir fig. 9, guident et maintiennent le couvercle contre le boitier. Pour cela, la cheminée (62) ainsi que les tenons (54) et (59), se terminent en forme de collerette. Les trous correspondants du couvercle sont coniques et se terminent par un dégagement. Au montage, une pression modérée suffit pour enclencher le couvercle sur le boitier. Ce moyen de fixation tolère quelques démontages, et autorise si nécessaire, un soudage par fusion des tenons avec le couvercle. Les cônes dans les tenons sont prévus pour faciliter le démoulage de la collerette sans détérioration de celle-ci.The assembly of the levers which are the main accessories of the miniature switches, must also be able to be carried out by the user. Fig. 9 shows, by way of example, a miniature switch equipped with a lever (51) with a roller (61). This lever pivots around an axis (60) which can, at will, be placed in the other holes (52) of the housing-cover assembly, in order to be able to vary the operating force and the action stroke of the the sink. Fig. 12 is a section showing the same axis (60) also used as the pivot axis of the roller (61). This axis which is molded in a suitable thermoplastic material with a single press stroke, thanks to the accordion shape of its central part, can, because of its elasticity, be sufficiently reduced in length, to penetrate the yoke formed by the cover box or by the lever. Placed in alignment with the concordant holes in the housing or the lever yoke, it returns to its original size. To serve as a • pivot for the lever (51) and the roller (61). The characteristic of this axis is that it can be disassembled and reassembled without deterioration, to change or replace the lever or the roller, manually with simple means. The assembly of the cover (58) on the housing (57) is generally done by rivets or by fusion of studs, which makes disassembly impossible. The cut fig. 11 shows another means of holding the cover, when the case (57) is made of thermoplastic material. The studs (54) and (59) as well as the chimney (62) of the fixing hole, see fig. 9, guide and hold the cover against the housing. For this, the chimney (62) as well as the studs (54) and (59), end in the form of a collar. The corresponding holes in the cover are tapered and end in a clearance. During assembly, moderate pressure is enough to snap the cover onto the housing. This fixing means tolerates some disassembly, and allows if necessary, fusion welding of the studs with the cover. The cones in the studs are provided to facilitate demoulding of the collar without deterioration of the latter.
- La fig. 1 est la coupe d'un commutateur en position contact haut.- Fig. 1 is the section through a switch in the high contact position.
- La fig. 2 est la coupe d'un commutateur en position contact bas.- Fig. 2 is the section of a switch in the low contact position.
- La fig. 3 est une perspective de l'organe de rupture brusque de 1 ou 2.- Fig. 3 is a perspective of the abrupt rupture organ of 1 or 2.
- La fig. 4 est le diagramme course-force de manoeuvre de 1 et 2.- Fig. 4 is the stroke-force diagram of maneuver of 1 and 2.
- La fig. 5 est la coupe du commutateur objet de l'invention contact haut. - £_a fig. 6 est la coupe du commutateur objet de l'invention contact bas.- Fig. 5 is the section of the switch object of the invention high contact. - £ _a fig. 6 is the section of the switch object of the invention low contact.
- La fig. 7 est une perspective de l'organe de rupture brusque de 6 ou 7.- Fig. 7 is a perspective of the abrupt rupture member of 6 or 7.
- La fig. 8 est le diagramme course-force de manoeuvre de 6 et 7.- Fig. 8 is the stroke-force diagram of maneuvers of 6 and 7.
- La fig. 9 montre le commutateur vue de face avec levier.- Fig. 9 shows the switch seen from the front with lever.
- La fig. 10 le représente vue de gauche. - La fig. 11 est la coupe selon (AA1).- Fig. 10 represents it seen from the left. - Fig. 11 is the section according to (AA 1 ).
- La fig. 12 est la coupe selon (BB').- Fig. 12 is the section along (BB ').
La réalisation de l'invention ne pose pas de problème particulier à l'industrie spécialisée dans la fabrication de ce type de produit. On devra réaliser l'assemblage du ressort-lame (35) sur la borne commune (34) de telle sorte que : les deux pièces soient bien alignées,le ressort- lame puisse se décoller librement de la borne commune et que la liaison électrique entre les deux pièces soit parfaite.. Il est recommandé de plier l'extrémité du ressort-lame à environ 45°, (P) fig- 7, afin de faciliter l'introduction du ressort-lame dans la lumière (33).The realization of the invention does not pose any particular problem in the industry specialized in the manufacture of this type of product. The leaf spring (35) must be assembled on the common terminal (34) so that: the two parts are well aligned, the leaf spring can be detached from the common terminal and the electrical connection between the two pieces are perfect. It is recommended to bend the end of the leaf spring at around 45 °, (P) fig- 7, in order to facilitate the introduction of the leaf spring into the hole (33).
L'invention, dont les dessins sont appropriés à une réalisation industrielle, s'applique préférentiellement aux produits conformes à la Norme Internationale (DIN 41635, forme A) et assimilés. The invention, the drawings of which are suitable for industrial production, preferably applies to products conforming to the International Standard (DIN 41635, form A) and the like.

Claims

R E V E ND I C A T I O N S R E V E ND I C A T I O N S
1 - Commutateur à rupture brusque, équipé ou non d'un levier de commande, comprenant un boitier (57) fermé par un couvercle (58) dans lequel un poussoir fait pivoter, dans une encoche (32) d'une borne commune (34), une lame mobile (38) munie de contacts (8) qui assurent la continuité électrique, alternativement entre la borne commune (34) et l'une des bornes fixes (30) ou (31), un ressort-lame (35) fixé à une extrémité de la borne commune (34), assure par l'autre extrémité libre, une traction sur la lame mobile (38) et une force de réaction sur le poussoir (39), caractérisé en ce que le ressort-lame décolle progressi- vement de la borne commune inclinée (34), en augmentant sa longueur active, au fur et à mesure de l'enfoncement du poussoir.1 - Snap-action switch, whether or not fitted with a control lever, comprising a housing (57) closed by a cover (58) in which a push-button pivots, in a notch (32) of a common terminal (34 ), a movable blade (38) provided with contacts (8) which provide electrical continuity, alternately between the common terminal (34) and one of the fixed terminals (30) or (31), a leaf spring (35) fixed at one end of the common terminal (34), ensures by the other free end, a traction on the movable blade (38) and a reaction force on the pusher (39), characterized in that the leaf spring takes off progressively the inclined common terminal (34), increasing its active length, as the plunger is pressed.
2 - Commutateur selon revendication 1 caractérisé en ce que le plan de la borne commune (34) sur lequel se déroule le ressort-lame (35) est incliné par rapport à la position moyenne de la lame mobile (38), et plus particulièrement d'un angle de 50° plus ou moins 5°, angle (a) fig. 5, pour les produits conformes à la norme (DIN 41635, forme A).2 - Switch according to claim 1 characterized in that the plane of the common terminal (34) on which the leaf spring (35) takes place is inclined relative to the average position of the movable blade (38), and more particularly d 'an angle of 50 ° plus or minus 5 °, angle (a) fig. 5, for products conforming to the standard (DIN 41635, form A).
3 - Commutateur selon revendication 1 caractérisé en ce que le ressort-lame (35) solidaire de la borne commune (34), maintient la lame mobile (38) en position d'équilibre contre l'appui formé par l'arête (40), lorsque ce sous-ensemble est hors du boitier fig. 9.3 - Switch according to claim 1 characterized in that the leaf spring (35) integral with the common terminal (34), maintains the movable blade (38) in the equilibrium position against the support formed by the edge (40) , when this sub-assembly is out of the box fig. 9.
4 - Commutateur selon revendication 1 caractérisé en ce que les plots de centrages (54) et (59) ainsi que la cheminée (62) du boitier (57) en matière plastique, sont réalisés en une seule opération de moulage.4 - Switch according to claim 1 characterized in that the centering pads (54) and (59) as well as the chimney (62) of the housing (57) made of plastic material, are produced in a single molding operation.
5 - Commutateur selon revendication 1 caractérisé en ce que les plots de centrage (54) et (59) ainsi que la cheminée (62) du boitier (57) en matière plastique, ont des collerettes qui se compriment au montage du couvercle (58) et qui se libèrent ensuite pour le retenir lorsqu'il est en place.5 - Switch according to claim 1 characterized in that the centering pads (54) and (59) as well as the chimney (62) of the housing (57) made of plastic, have flanges which compress when the cover is mounted (58) and which are then released to retain it when it is in place.
6 - Commutateur avec levier selon revendication 1 caractérisé en ce qUe l'axe (60) en matière plastique du levier (51) et du galet (61) a une partie centrale compressible en forme d'accordéon qui lui permet d'être moulé en une seule opération. 6 - Switch with lever according to claim 1 characterized in that q U e the axis (60) in plastic of the lever (51) and the roller (61) has a compressible central part in the form of an accordion which allows it to be molded in a single operation.
EP87902544A 1986-04-16 1987-04-14 Miniature switch with sudden break Expired - Lifetime EP0302070B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8605673 1986-04-16
FR8605673A FR2597658B1 (en) 1986-04-16 1986-04-16 SWITCHED MINIATURE SWITCH

Publications (2)

Publication Number Publication Date
EP0302070A1 true EP0302070A1 (en) 1989-02-08
EP0302070B1 EP0302070B1 (en) 1991-11-21

Family

ID=9334417

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87902544A Expired - Lifetime EP0302070B1 (en) 1986-04-16 1987-04-14 Miniature switch with sudden break

Country Status (7)

Country Link
US (1) US5082997A (en)
EP (1) EP0302070B1 (en)
JP (1) JPH01502788A (en)
AU (1) AU7285887A (en)
DE (1) DE3774705D1 (en)
FR (1) FR2597658B1 (en)
WO (1) WO1987006388A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3827481A1 (en) * 1988-08-12 1990-02-15 Hartmann Kg Eduard ELECTRIC SWITCH
DE8915158U1 (en) * 1989-12-23 1990-02-08 Graesslin Kg, 7742 St. Georgen, De
FR2676585B1 (en) * 1991-05-15 1993-12-10 Roger Vialy JOINT BLADE-TERMINAL JOINT FOR SWITCH.
FR2702304B1 (en) * 1993-03-05 1995-06-16 Sextant Avionique MICRO SWITCH BLADE ARTICULATION.
DE9305074U1 (en) * 1993-04-02 1993-06-09 Schaltbau Ag, 8000 Muenchen, De
FR2716746B1 (en) * 1993-04-07 1997-01-10 Roger Vialy Snap-action microswitch with friction contacts.
DE69414400T2 (en) * 1993-08-03 1999-07-15 Otter Controls Ltd ELECTRIC SWITCHES
JPH08171832A (en) * 1994-10-18 1996-07-02 Matsushita Electric Ind Co Ltd Switch
US7275562B2 (en) * 2001-10-17 2007-10-02 Agilent Technologies, Inc. Extensible spiral for flex circuit
US6894241B1 (en) * 2004-02-26 2005-05-17 Tsung-Mou Yu Resilient switching device
FR2868874B1 (en) * 2004-04-09 2010-09-10 Itt Mfg Enterprises Inc ELECTRICAL SWITCH OF NORMALLY CLOSED TYPE
TWI264025B (en) * 2004-06-28 2006-10-11 Hon Hai Prec Ind Co Ltd Push switch
WO2014069907A1 (en) 2012-11-05 2014-05-08 주식회사 대동 High load switch for vehicle

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB560583A (en) * 1943-01-01 1944-04-11 Pye Ltd Improvements in or relating to the manufacture of snap-action electric switches
US2417169A (en) * 1943-01-20 1947-03-11 First Ind Corp Snap switch
US2525044A (en) * 1947-02-11 1950-10-10 Mallory & Co Inc P R Snap action switch
US2659238A (en) * 1949-10-15 1953-11-17 Honeywell Regulator Co Snap acting mechanism
US2743331A (en) * 1955-01-21 1956-04-24 W L Maxson Corp Snap switch
US2825779A (en) * 1956-01-10 1958-03-04 Electrical Apparatus Company I Snap switch
US3030466A (en) * 1958-10-13 1962-04-17 Honeywell Regulator Co Snap switch
NL244807A (en) * 1958-12-03
GB1133332A (en) * 1965-01-27 1968-11-13 Plessey Uk Ltd Improvements relating to snap-action mechanisms
US3532840A (en) * 1965-02-08 1970-10-06 Robertshaw Controls Co Electrical switch having interlocking cover and casing members
GB1189971A (en) * 1969-01-28 1970-04-29 Philips Electronic Associated Improvements in or relating to Electric Switches
US3548132A (en) * 1969-03-28 1970-12-15 Cutler Hammer Inc Miniature precision snap action switch with wiping contact action
US3809837A (en) * 1971-09-30 1974-05-07 Matsushita Electric Works Ltd Microswitch with readily removable leaf spring actuating means
DE7149621U (en) * 1971-12-31 1972-03-30 W Borgmann Kg Mikrospring switch
US3838237A (en) * 1972-04-28 1974-09-24 Matsushita Electric Works Ltd Light load type push button switch
GB1513037A (en) * 1975-10-01 1978-06-01 Unimax Switch Ltd Electrical switches
FR2346836A1 (en) * 1976-04-02 1977-10-28 Rogero Bernard Multipolar switch actuated by pushbutton - has spring blade arranged as over centred toggle to give clean switching action
US4130747A (en) * 1977-10-12 1978-12-19 Mcgill Manufacturing Company, Inc. Miniature overtravel snap action switch with pivotal cam mounting for the switch blade
CH656974A5 (en) * 1982-07-28 1986-07-31 Sodeco Compteurs De Geneve TOGGLE SWITCH WITH DOUBLE TIP FUNCTION.
US4673778A (en) * 1985-02-05 1987-06-16 The Cherry Corporation Snap action switch
US4891481A (en) * 1988-06-13 1990-01-02 Eaton Corporation Switch contact blade

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8706388A1 *

Also Published As

Publication number Publication date
FR2597658A1 (en) 1987-10-23
FR2597658B1 (en) 1992-09-11
AU7285887A (en) 1987-11-09
WO1987006388A1 (en) 1987-10-22
DE3774705D1 (en) 1992-01-02
JPH01502788A (en) 1989-09-21
US5082997A (en) 1992-01-21
EP0302070B1 (en) 1991-11-21

Similar Documents

Publication Publication Date Title
EP0302070B1 (en) Miniature switch with sudden break
EP0570647B1 (en) Switch latch for a circuit breaker and circuit breakers incorporating it
US4394553A (en) Snap action switch
BE1014955A3 (en) Housing with connection terminals.
EP0135961B1 (en) Device for regulating the electrical signal delivered to a jack with a cylindrical receiving opening
US5865303A (en) Electrical rocker switch
FR2540669A1 (en) THERMAL SWITCH WITH BRUSH MOTION PLATE CONTROLLED BY A BIMETAL
FR2513434A1 (en) MECHANISM WITH INJURY TRIPPING, IN PARTICULAR FOR SWITCH
US5836443A (en) Electrical rocker switch
EP0564379B1 (en) Swinging lever actuating mechanism for circuit breaker with phase- and neutral conductor
FR2806521A1 (en) Electrical circuit breaker includes operating lever and contact carrier with high energy spring for rapid contact separation
FR2503444A1 (en) SUSPENDED RUPTURE SWITCH
EP3487006B1 (en) Electrical system comprising an electrical apparatus and an interchangeable connector module
EP0564380B1 (en) Operating mechanism with slide for electrical circuit breakers with switching for the neutral conductor
EP1865578B1 (en) Self-stripping terminal for an insulated electrical conductor and electrical equipment comprising such a terminal
EP0209433B1 (en) Mobile contacts support, in particular for a protection circuit breaker
FR2565730A1 (en) Rocker operated push button electric switch
EP1162521B1 (en) Snap-action actuating device and watch provided with such a device
EP0054499B1 (en) Circuit breaker with neutral-line disconnection
FR2826175A1 (en) MULTIPOLAR ELECTRIC SWITCHING APPARATUS HAVING A LATCH LOCK
FR2538947A1 (en) CLOSED AND OPEN SWITCH CONTROLLED AND AUTOMATICALLY OPEN IN CASE OF CURRENT OVERLOAD
FR2576141A1 (en) LOW VOLTAGE CIRCUIT BREAKER, WITH HOLDING LATCH ARRANGED IN A SEPARATE BEDROOM
EP0224402A1 (en) Snap switches
FR2602091A1 (en) CIRCUIT SWITCH
EP0373018B1 (en) Hand-operating mechanism for quick break for electric circuit breaker

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

17P Request for examination filed

Effective date: 19881013

AK Designated contracting states

Kind code of ref document: A1

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

RBV Designated contracting states (corrected)

Designated state(s): CH DE FR GB IT LI

17Q First examination report despatched

Effective date: 19910124

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

REF Corresponds to:

Ref document number: 3774705

Country of ref document: DE

Date of ref document: 19920102

ITF It: translation for a ep patent filed

Owner name: STUDIO TORTA SOCIETA' SEMPLICE

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
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
REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: ROGER VIALY TRANSFER- ELETTROTECNICA ROLD SRL

Ref country code: CH

Ref legal event code: NV

Representative=s name: PATENTANWAELTE SCHAAD, BALASS, MENZL & PARTNER AG

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: DE

Payment date: 20050407

Year of fee payment: 19

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

Ref country code: FR

Payment date: 20050408

Year of fee payment: 19

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

Ref country code: GB

Payment date: 20050413

Year of fee payment: 19

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

Ref country code: CH

Payment date: 20050415

Year of fee payment: 19

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: 20060414

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: 20060430

Ref country code: CH

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

Effective date: 20060430

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

Ref country code: IT

Payment date: 20060430

Year of fee payment: 20

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: 20061101

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20060414

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20061230

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

Ref country code: FR

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

Effective date: 20060502