EP0848400B1 - Interrupteur électrique - Google Patents

Interrupteur électrique Download PDF

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Publication number
EP0848400B1
EP0848400B1 EP97121282A EP97121282A EP0848400B1 EP 0848400 B1 EP0848400 B1 EP 0848400B1 EP 97121282 A EP97121282 A EP 97121282A EP 97121282 A EP97121282 A EP 97121282A EP 0848400 B1 EP0848400 B1 EP 0848400B1
Authority
EP
European Patent Office
Prior art keywords
contact
lever arm
housing
bearing
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97121282A
Other languages
German (de)
English (en)
Other versions
EP0848400A3 (fr
EP0848400A2 (fr
Inventor
Alois Schäffeler
Lothar Faude
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.)
Marquardt GmbH
Original Assignee
Marquardt GmbH
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 Marquardt GmbH filed Critical Marquardt GmbH
Publication of EP0848400A2 publication Critical patent/EP0848400A2/fr
Publication of EP0848400A3 publication Critical patent/EP0848400A3/fr
Application granted granted Critical
Publication of EP0848400B1 publication Critical patent/EP0848400B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/04—Energy stored by deformation of elastic members
    • H01H5/045—Energy stored by deformation of elastic members making use of cooperating spring loaded wedging or camming parts between operating member and contact structure
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H01H9/06—Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/18—Contacts characterised by the manner in which co-operating contacts engage by abutting with subsequent sliding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5833—Electric connections to or between contacts; Terminals comprising an articulating, sliding or rolling contact between movable contact and terminal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H15/00—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch
    • H01H15/02—Details
    • H01H15/06—Movable parts; Contacts mounted thereon
    • H01H15/16—Driving mechanisms
    • H01H15/18—Driving mechanisms acting with snap action

Definitions

  • the invention relates to an electrical switch according to the Preamble of claim 1.
  • Such electrical switches are used in particular in Power tools, such as drills, jigsaws, Circular saws, electric planers or the like, used.
  • the contact system is in arranged approximately parallel to the actuation axis in the housing, the switch contact in the actuated position approximately runs in the direction of movement of the actuator.
  • the connections of the supply lines for the Power supply at the bottom of the housing Switch is located, the current is in the housing complicated from the connections to the contact system.
  • the electrical switches as multi-pole switches with several Contact systems designed is a relatively large Housing required to accommodate the contact systems. In slim handles of power tools is the Housing such a switch often difficult.
  • an electrical switch is known from US-A-4 061 895 known for an electric hand tool with a housing, the again a switch contact and a fixed contact existing contact system as well as a longitudinally movable, as Pusher trained actuator has.
  • the Actuator has an insert inside the housing with a control cam to the in the manner of a two-armed lever designed on a bearing pivotable switching contact when moving the Actuator between an unactuated and an to switch the actuated position of the contact system.
  • the Fixed contact is arranged in the housing at a connection that the fixed contact is inclined and inclined to Direction of movement of the actuator stands.
  • the Switch contact is in with a boom-like connection electrical connection and is aligned in the warehouse, that the first lever arm of the switch contact in the actuated Position of the contact system with its longitudinal direction deviates from the direction of movement of the actuator and that the between the first lever arm and the Direction of movement included angles greater than 0 degrees is.
  • the contact system of the switch is in the essentially transverse to the actuation axis of the switch arranged.
  • DE 25 58 620 A is a switch for Power tools with a contact system described that there is a fixed contact and a switching contact.
  • the Switch contact is designed in the manner of a leaf spring and clamped with one end in the housing of the switch. The other free end of the switch contact carries the movable one Contact.
  • the switch contact has a complex, not straight design and is therefore complicated manufacture. This shape also results in a elaborate current flow in the contact system of the switch what again a higher space requirement for the switch draws.
  • the leaf spring-like switch contact is for higher currents, like this at least with power tools high performance are not suitable.
  • the invention is based on US-A-4 061 895 Task based on the current supply for the contact system in the simplify electrical switch.
  • the current flow in the electrical switch is according to the invention thereby simplified by the current routing in the contact system approximately perpendicular to the direction of movement of the actuator and / or the cam control is configured.
  • the purpose of the bearing for the switch contact is live formed, and the connecting line between the Fixed contact and the bearing for the switch contact is approximately perpendicular to the direction of movement.
  • the switch contact of the contact system arranged on the bearing so that the first Lever arm of the switch contact in the actuated position with its longitudinal direction is approximately vertical, with a Angle of approximately 90 degrees to the direction of movement of the Actuator and / or the cam control is.
  • the first lever arm of the Switching contact a means of exercising on the Fixed contact directed force. It is advantageous this makes the housing for the switch particularly compact embody. Further refinements of the invention are Subject of the subclaims.
  • first lever arm is directed at an angle of at least 45 degrees to the direction of movement in the unactuated position of the switching contact. This angle can then expediently be between 50 and 70 degrees.
  • a plunger can be moved linearly on the housing arranged actuator be rigidly coupled so that the actuation axis is formed by the plunger. Next is on the part of the plunger located inside the housing Cams for those interacting with the second lever arm Cam control arranged.
  • the fixed contact can be directly on a connector for a electrical lead attached, the connector. is located in particular on the underside of the housing.
  • the bearing for the switch contact can be used with another Connection part are in electrical connection, wherein especially the other connector as a plug contact is formed and protrudes on the top of the housing.
  • the further connecting part is then expediently connected to the Bearing designed as a one-piece stamped part. At a such training of a power tool switch are the mains and motor connections are each connected to one Long side of the case.
  • the switching contact has a game in Camp.
  • the means to exert a force on the first lever arm of the switching contact arranged such that the line of action of the force in the unactuated position of the Switching contact from the vertical direction at first Lever arm deviates, creating an additional force component is exerted on the switch contact in the direction of the bearing.
  • the cam on the cam control then essentially acts until the actuated position is reached on the second lever arm that this additional force component is compensated.
  • the bearing opposite end of the second lever arm a slope angled to the longitudinal direction of the second lever arm be arranged.
  • the slope acts with the cam Cam control in the manner of an inclined plane together.
  • the cam gives the second position Lever arm largely free, which then makes cleaning Serving, rubbing movement of the switch contact on the Fixed contact in the direction of the warehouse.
  • the switch has one Means to inhibit movement of the actuator.
  • This Medium is in a certain movement position Active connection can be brought with the actuator, so that in this movement position is a pressure point for the Actuator can be generated.
  • the inhibitor can from a pin and one in the path of movement of the pin located passage opening exist, the Passage opening at the narrowest point a smaller width than the largest cross section of the pin.
  • the cone can on the inside of the housing part of the Plunger, the pin on the plunger as an extension of the cam can be molded.
  • the passage opening is preferably by two tapered Guide surfaces with different steep slopes trained on both sides of the narrowest point.
  • the Guide surfaces can be on an inner wall of the housing are and for example molded onto the inner wall his.
  • the inhibitor is designed such that the Active connection when switching from the unactuated position for the actuated position of the contact system with a larger one Intensity than in the opposite direction of movement Actuator is manufactured.
  • the pin also has an asymmetrical cross-sectional profile sides with two different curvatures. The side with the smaller curvature is in the unactuated position of the contact system facing the passage opening.
  • the housing for the switch consists of two housing parts, namely from a base and a lid. In the base they are Contact system, the connections and the guide for the Actuator included with the plunger. The Guide surfaces for the means to inhibit the movement of the Actuators are on the inside of the Cover. All around the two housing parts are groove and Spring connections arranged. Because of this after the Installation of interlocking tongue and groove connections form the transition gap between the two housing parts a kind of labyrinth, so that the interior of the case largely is dustproof.
  • the switch housing has a small installation volume, even if it is one multipole switch. This allows this switch in slim trained handles of power tools are used, so that the overall ergonomics of the Power tool is increased. Because the contact system Is arranged in a space-saving manner in the housing, it can be used without increased space requirements due to wide contact surfaces on the Switch contacts, large contact areas and. The like. For high Switching capacities are dimensioned.
  • the inventive design of the contact system ensures high contact force in the actuated position. This in turn reduces the contact erosion. Furthermore, a good self-cleaning of the Contact areas can be achieved when switching. Thus, the Lifetime of the switch increased.
  • the switch according to the invention is also cheaper in the Production.
  • an electrical switch 1 which as Power switch for use in power tools, such as drills, Jigsaws, circular saws or the like.
  • the switch 1 has a housing 2 on which a serving as a manual handle, in the Form of a handle formed actuator 3 linearly movable in a direction of movement according to arrows 19, 19 ' is arranged.
  • a plunger 4 is rigid coupled, which extends into the housing interior 5 of the housing 2, such as 3 can be seen.
  • the plunger 4 has a receptacle 6 for a compression spring 7 the actuator 3 by the user together with the plunger 4 in Direction of arrow 19 against the restoring force of the compression spring 7, which acts in the direction of arrow 19 ', movable.
  • a contact system 8 which consists of a switch contact 9 and a Fixed contact 10 exists.
  • the switch contact 9 is pivotable on a bearing 11 arranged and in the manner of a lever with two Lever arms 12, 13 formed.
  • the first lever arm 12 of the switching contact 9 acts as an elastic means to exert a force directed at the fixed contact 10.
  • a compression spring trained spring 14 which has one end in a receptacle 15 in Housing interior 5 and at the other end to a shoulder 16 first lever arm 12 is held.
  • the actuator 3 acts on the plunger 4 in certain Movement positions in such a way on the contact system 8 that the Contact system 8 between an unactuated position, which in Fig. 3rd can be seen, and an actuated position, which can be seen in Fig. 4 is, switches.
  • the contact surface 38 lies of the switching contact 9 on the fixed contact 10, so that the switch 1 is switched on.
  • the unactuated position the Contact surface 38 of the switching contact 9, however, a distance from Fixed contact 10, with which the switch 1 is switched off.
  • the actuating member 3 acts to switch the contact system 8 a cam control 17 with the second lever arm 13 of the Switch contact 9 together.
  • the cam control 17 has one Cam 18, which on the inside of the housing 5 part of the Ram 4 is arranged.
  • the cam 18 acts in the unactuated position, the second lever arm 13 and gives in the actuated position the second lever arm 13 free. So that's right in the present case, the direction of movement of the actuator 3 that of the cam controller 17.
  • a Locking button 43 which is shown in Fig. 2, it can Actuator 3 in the actuated position of the contact system 8 lock.
  • the contact system 8 is transverse to the direction of movement 19, 19 'arranged in the housing 2.
  • the switch contact 9 so arranged on the bearing 11 that the first lever arm 12 in the actuated position of the switching contact 9 with its longitudinal direction deviating from the parallel lines 39 running through the bearing 11 Direction of movement 19, 19 'of the actuator 3 and the plunger 4th or the cam controller 17 is directed.
  • the parallel 39 is in 3 and 4 are drawn with a broken line.
  • the one in Fig. 4 specified angle ⁇ between the first lever arm 12 and the Parallels 39 to the direction of movement 19, 19 'is thus greater than 0 Degree.
  • the Angle ⁇ between the first lever arm 12 and the parallel 39 to Direction of movement 19, 19 'of the actuator 3 at least 45 degrees is, so that conversely the angle ⁇ between the first lever arm 12 and the perpendicular 40 to the direction of movement 19, 19 'at most 45 Degrees.
  • the angle ⁇ is between 50 and 70 degrees, which in turn can be seen in more detail in FIG. 3.
  • the Current flow in the contact system 8 in a special way and in fact approximately perpendicular to the direction of movement 19, 19 'of the actuator 3 or the cam controller 17.
  • the fixed contact 10 and current-bearing 11 in the interior 5 arranged such that the imaginary connecting line between the fixed contact 10 and the bearing 11 for the switch contact 9 approximately perpendicular to the direction of movement 19, 19 'of the actuator 3 is and thus approximately in the direction the vertical 40 runs.
  • the fixed contact 10 is for further optimization of the current flow directly on a connection part 20 for the supply line to Power supply or for the mains lead to switch 1 attached.
  • the connecting part 20 can, for example, as a cuboid Part be made of copper, this on one surface Part of the fixed contact 10 attached in the form of a contact rivet is.
  • the connecting part 20 is on the underside 22 of the housing 2 located and has a screw connection 24 for fastening the Mains cable.
  • the bearing 11 for the switch contact 9 is with another Connection part 21 in electrical connection.
  • the other connector 21 is designed as a plug contact 25, which on the top 23 of the Housing 2 protrudes. At the plug contact 25, the leads connected to the electric motor of the power tool.
  • the further connection part 21 with the bearing 11 as an integral stamped part is formed.
  • the further connecting part 21 is approximately parallel to the vertical 40 inside the housing 5 arranged, the bearing 11 being bent on the further connecting part 21 is.
  • the power supply lines are on the bottom 22 and the leads for the electric motor on the top 23 of the electrical switch 1 connected.
  • the current is in the substantially perpendicular to the direction of movement 19, 19 'of Actuator 3, that is parallel to the vertical 40 through the Housing 2 passed through. This measure gives you a great deal compact electrical switch 1, which is particularly simple on one long side of the housing 2 with the electrical Connections for the power tool is to be provided.
  • the switch 1 When using the electrical switch 1 as a power switch it is often desirable if the switch 1 is designed with two poles.
  • an interior 5 of the housing Another contact system 8 'designed according to the invention is arranged.
  • the two contact systems 8, 8 ' are in the direction of movement 19, 19' of the Actuator 3 or the cam control 17 side by side arranged.
  • the second too Contact system 8 ' is via a cam 18 of the cam control 17, the part of the plunger 4 located in the housing interior 5 is arranged, switched. Otherwise, the two can Contact systems 8, 8 'simultaneously or through as desired corresponding design of the cam control 17 also in different movement positions of the actuator 3 switch.
  • Measures for automatic switch 1 can also be used Cleaning of the contacts may be provided. For this he has Switch contact 9 in the bearing 11, which is in the manner of a cutting edge bearing trained to be a game.
  • the first lever arm 12 arranged with a force acting spring 14 such that the line of action of the force in the unactuated position of the switching contact 9 from the perpendicular to the longitudinal direction of the first lever arm 12 differs. This can be seen particularly well in FIG. 3, where the spring 14 with a curvature between the receptacle 15 and the first lever arm 12 is arranged. This arrangement is in addition to the direction an additional closing force acting on the fixed contact 10 Force component from the spring 14 on the switch contact 9 in the direction exercised to camp 11.
  • the cam 18 acts on the slope 26 on the second lever arm 13 in essentially until the actuated position of the Switching contact 9 on. When reaching or just before reaching the actuated position of the switch contact 9 gives the cam 18 second lever arm 13 largely free.
  • the additional spring 14 generated force component no longer compensated, so that this Force component affect the switch contact 9 and the Switching contact 9 as part of the game in the camp 11 towards Bearing 11 can move. This in turn creates a rubbing Movement of the switching contact 9 on the fixed contact 10 in the direction of Bearing 11.
  • This relative movement between the switching contact 9 and the fixed contact 10 when the contacts 9, 10 are closed Contact surface 38 on the switching contact 9 and the fixed contact 10 of Contamination, pollutant deposits, contact erosion residues u. Like. cleaned.
  • the switch 1 has a pressure point for the Movement of the actuator 3 when the switch position is reached from the unactuated position to the actuated position.
  • to Generation of the pressure point is one for inhibiting the movement of the Actuator 3 serving means 27 in a particular Movement position with the actuator 3 in operative connection brought.
  • the means 27 for Inhibition of the movement of the actuator 3 from a pin 28 and one in the path of movement of the pin 28 Passage opening 29.
  • the pin 28 is on the inside 5 located part of the plunger 4 and conveniently as a molded, extended approach to the contact system 8 assigned cams 18.
  • the passage opening 29 is the inner wall 31 assigned to the housing 2.
  • the mode of action of the means for Inhibition of the movement of the actuator 3 is in one Principle sketch in Fig. 5 and 6 clarified.
  • the passage opening 29 is of two conical ones Guide surfaces 30, 30 ', for example on the inner wall 31 of the Housing 2 are molded, formed. Because of the non-parallel, has the conical shape of the two guide surfaces 30, 30 ' Through opening 29 a narrowest point 32, the narrowest point 32nd a slightly smaller width than the largest cross section of the pin 28 having.
  • the slopes 41, 42 are the narrowest on both sides Point 32 formed differently steep, the steeper Slant 41 the pin 28 in the unactuated position of the Actuator 3 is facing.
  • the pin 28 also has asymmetrical cross-sectional profile with two sides 33, 34 on the each have different curvatures. The page 33 with the smaller curvature is in the unactuated position of the Contact system 8 facing the passage opening 29 and the side 34 the passage 29 faces away with the greater curvature.
  • the housing 2 consists of two Housing parts, namely from a base 35 and a cover 36.
  • Das Contact system 8, 8 ', the connecting parts 20, 21 and the guide for that Actuator 3 with plunger 4 are received in the base 35.
  • the Pin 28 for the means 27 to inhibit the movement of the Actuator 3 is located on the cam control 17 and is thus also assigned to the base 35, while the guide surfaces 30, 30 'for the passage opening 29 preferably on the inner wall 31 of the lid 36 are located.
  • Through tongue and groove connections 37 which all around the base 35 and cover 36 all around are arranged, form the transition column between the two Housing parts 35, 36 a kind of labyrinth. This will make one extensive dust tightness of the housing interior 5 also on these Transition columns achieved.
  • the contact system is also suitable for switches with a according to the position of movement of the actuator adjustable electronics, for example for speed control of the power tool.
  • a pivotable Actuator can be provided, this on a plunger, Slider or the like can act for the cam control.
  • the lever arm of the switch contact is actuated Position of the contact system deviates from the parallel to Direction of movement of the plunger or slide and thus deviating from the parallel to the direction of movement of the cam control.
  • a switch according to the invention can not only in Power tools are used, but can also be used in Garden tools, household appliances or the like. Find use.

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  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)

Claims (9)

  1. Commutateur électrique, en particulier pour outils électriques, comportant un organe de commande (3) mobile équipé d'un système de contact (8) composé d'un contact de commutation (9) et d'un contact fixe (10), le contact de commutation (9) agencé de manière pivotante sur un palier (11) étant réalisé sous la forme d'un levier à deux bras de levier (12, 13), une commande à came (17) pouvant être déplacée par l'organe de commande (3) coopérant avec le second bras de levier (13) du contact de commutation (9) pour commuter le système de contact (8) entre une position non-actionnée et une position actionnée, le système de contact (8) étant agencé transversalement à une ligne parallèle (39) à la direction de déplacement (19, 19') de l'organe de commande (3) et/ou de la commande à came (17) et le contact de commutation (9) étant orienté sur le palier (11) de manière que, dans la position actionnée du système de contact (8), la direction longitudinale du premier bras de levier (12) du contact de commutation (9) s'écarte de la ligne parallèle (39) à la direction de déplacement (19, 19') et que l'angle (α) ainsi compris entre le premier bras de levier (12) et la ligne parallèle (39) soit supérieur à 0 degré,
    caractérisé en ce que la conduction du courant dans le système de contact (8) est réalisée à peu près verticalement à la direction de déplacement (19, 19') de l'organe de commande (3) et/ou de la commande à came (17), le palier (11) du contact de commutation (9) étant réalisé conducteur, la ligne de liaison entre le contact fixe (10) et le palier (11) du contact de commutation (9) étant à peu près verticale à la direction de déplacement (19, 19') et la direction longitudinale du premier bras de levier (12) du contact de commutation (9) étant, dans la position actionnée, à peu près verticale, avec un angle (α) d'environ 90 degrés, à la ligne parallèle (39) à la direction de déplacement (19, 19'), et en ce qu'un moyen destiné à exercer une force dirigée sur le contact fixe (10) agit sur le premier bras de levier (12) du contact de commutation (9).
  2. Commutateur électrique selon la revendication 1,
    caractérisé en ce que le contact de commutation (9) est en outre agencé sur le palier (11) de telle manière que, dans la position non-actionnée du système de contact (8), la direction longitudinale du premier bras de levier (12) soit dirigée obliquement à une ligne verticale (40) à la direction de déplacement (19, 19') de l'organe de commande (3) et/ou de la commande à came (17), l'angle (δ) entre le premier bras de levier (12) et la ligne parallèle (39) à la direction de déplacement (19, 19') étant de préférence égal à au moins 45 degrés, en particulier compris entre 50 et 70 degrés, dans la position non-actionnée du système de contact (8).
  3. Commutateur électrique selon la revendication 1 ou 2,
    caractérisé en ce que le système de contact (8) est situé dans un boítier (2), en ce que l'organe de commande (3) est agencé sur le boítier (2) de manière mobile linéairement, en ce qu'à l'organe de commande (3) est couplé de manière rigide un poussoir (4) sur la partie située dans l'intérieur de boítier (5) duquel est agencée la came (18) de la commande à came (17) et en ce que le moyen destiné à exercer la force sur le premier bras de levier (12) est de préférence composé d'un ressort (14), en particulier d'un ressort de pression.
  4. Commutateur électrique selon la revendication 1, 2 ou 3,
    caractérisé en ce que le contact fixe (10) est directement fixé sur un élément de raccordement (20) pour une conduite électrique, l'élément de raccordement (20) se trouvant notamment sur la face inférieure (22) du boítier (2), en ce que le palier (11) du contact de commutation (9) est de préférence en liaison électrique avec un autre élément de raccordement (21), l'autre élément de raccordement (21) étant réalisé notamment sous la forme d'un contact à fiches (25) faisant saillie sur la face supérieure (23) du boítier (2), et en ce que l'autre élément de. raccordement (21), avec le palier (1 1 ), est en outre réalisé de préférence sous la forme d'un élément estampé d'un seul tenant.
  5. Commutateur électrique selon l'une des revendications 1 à 4,
    caractérisé en ce que le contact de commutation (9) agencé dans le palier (11), lequel est réalisé notamment sous la forme d'un couteau de répartition, possède un jeu, en ce que le moyen destiné à exercer une force sur le premier bras de levier (12) est agencé de telle manière que, dans la position non-actionnée du contact de commutation (9), la ligne d'effet de la force s'écarte de la direction verticale vers le premier bras de levier (12), de sorte qu'une composante de force supplémentaire est exercée sur le contact de commutation (9) dans la direction du palier (11), en ce que la came (18) de la commande à came (17) agit sur le second bras de levier (13), essentiellement jusqu'à ce que le contact de commutation (9) atteigne la position actionnée, de telle manière que la composante de force supplémentaire est compensée, et en ce que, dans la position actionnée du contact de commutation (9), la came (18) libère dans une large mesure le second bras de levier (13).
  6. Commutateur électrique selon l'une des revendications 1 à 5,
    caractérisé en ce que sur l'extrémité du second bras de levier (13) opposée au palier (11) est agencée une inclinaison (26) formant un angle par rapport à la direction longitudinale du second bras de levier (13), l'inclinaison (26) coopérant avec la came (18) de la commande à came (17) à la facon d'un plan incliné afin de produire une composante de force à l'encontre de la force de fermeture exercée par le moyen agissant sur le premier bras de levier (12) et une autre composante de force compensant la composante de force supplémentaire dans la direction du palier (11).
  7. Commutateur électrique selon l'une des revendications 1 à 6,
    caractérisé en ce que, dans l'intérieur de boítier (5), deux systèmes de contact (8, 8') sont agencés l'un à côté de l'autre dans la direction de déplacement (19, 19') de l'organe de commande (3) et/ou de la commande à came (17), le contact de commutation (9), le contact fixe (10) et le palier (11) ainsi que, le cas échéant, l'autre élément de raccordement (21) en liaison électrique avec le palier (11) et l'élément de raccordement (20) en liaison électrique avec le contact fixe (10) étant réalisés de manière identique pour les deux systèmes de contact (8, 8').
  8. Commutateur électrique selon l'une des revendications 1 à 7,
    caractérisé en ce qu'un moyen (27) servant à produire un point de pression afin de bloquer le déplacement de l'organe de commande (3) et/ou de la commande à came (17) peut être amené en liaison active avec l'organe de commande (3) et/ou la commande à came (17) dans une certaine position de déplacement, la liaison active étant en particulier établie dans la direction de déplacement (19) lors de la commutation de la position non-actionnée à la position actionnée du système de contact (8) avec une plus grande intensité que dans la direction de déplacement inverse (19'), en ce que le moyen (27) servant à bloquer est de préférence composé d'un tenon (28) et d'une ouverture de passage (29) située sur la trajectoire du tenon (28) et présentant au point le plus étroit (32) une largeur inférieure à la section transversale la plus grande du tenon (28), le tenon (28) étant en particulier situé sur la partie du poussoir (4) située dans l'intérieur de boítier (5) et l'ouverture de passage (29) sous la forme de deux surfaces de guidage (30, 30') s'étendant de manière conique avec des inclinaisons (41, 42), le cas échéant réalisées avec des pentes différentes, des deux côtés du point le plus étroit (32) étant située sur une paroi intérieure (31) du boítier (2), et en ce que le tenon (28) présente en outre de préférence un profil de section transversale asymétrique avec deux côtés (33, 34) possédant des courbures différentes, le côté (33) avec la courbure la plus faible étant orienté, dans la position non-actionnée du système de contact (8), vers l'ouverture de passage (29) ainsi qu'en particulier vers l'inclinaison la plus forte (41) sur le point le plus étroit (32).
  9. Commutateur électrique selon l'une des revendications 1 à 8,
    caractérisé en ce que le boítier (2) est composé de deux parties de boítier, notamment d'un socle (35) et d'un couvercle (36), le système de contact (8), les éléments de raccordement (20, 21) et le guidage de l'organe de commande (3) avec le poussoir (4) étant de préférence logés dans le socle (35), le tenon (28) étant associé au socle (35) et les surfaces de guidage (30, 30') étant situées sur le couvercle (36), et en ce que la fente de transition entre les deux parties de boítier forme de préférence une sorte de labyrinthe du fait de liaisons à languette et rainure (37) amplement agencées de manière circulaire autour des parties de boítier.
EP97121282A 1996-12-13 1997-12-04 Interrupteur électrique Expired - Lifetime EP0848400B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19651872A DE19651872A1 (de) 1996-12-13 1996-12-13 Elektrischer Schalter
DE19651872 1996-12-13

Publications (3)

Publication Number Publication Date
EP0848400A2 EP0848400A2 (fr) 1998-06-17
EP0848400A3 EP0848400A3 (fr) 1999-05-06
EP0848400B1 true EP0848400B1 (fr) 2004-02-11

Family

ID=7814590

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121282A Expired - Lifetime EP0848400B1 (fr) 1996-12-13 1997-12-04 Interrupteur électrique

Country Status (2)

Country Link
EP (1) EP0848400B1 (fr)
DE (2) DE19651872A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1910165C3 (de) * 1969-02-28 1980-02-28 Preh, Elektrofeinmechanische Werke, Jakob Preh, Nachf. Gmbh & Co, 8740 Bad Neustadt Zweipoliger Schiebeschalter
DE2558620C2 (de) * 1975-12-24 1982-09-02 J.& J. Marquardt, 7201 Rietheim-Weilheim Elektrischer Schalter
US4061895A (en) * 1976-01-21 1977-12-06 Cutler-Hammer, Inc. Higher rated double-pole trigger switch
GB1577924A (en) * 1977-06-29 1980-10-29 Arrow Hart Europe Ltd Hand grip for a portable electric appliance
DE2838934C2 (de) * 1978-09-07 1986-07-31 J. & J. Marquardt, 7201 Rietheim-Weilheim Elektrischer Schalter
DE3439469A1 (de) * 1984-10-27 1986-05-07 Rudolf Schadow Gmbh, 1000 Berlin Druck- oder schiebetastenschalter
DE3713775C2 (de) * 1987-04-24 1996-02-08 Cherry Mikroschalter Gmbh Tastenschalter
DE4130827A1 (de) * 1991-09-17 1993-03-25 Braun Ag Elektrischer schalter
DE4418707A1 (de) * 1994-05-28 1995-11-30 Teves Gmbh Alfred Schnappschalter mit gerader Bewegung des Schaltstücks sowie Schaltersystem hierzu
DE19508925A1 (de) * 1995-03-13 1996-09-19 Marquardt Gmbh Elektrischer Schalter, insbesondere für Elektrohandwerkzeuge

Also Published As

Publication number Publication date
EP0848400A3 (fr) 1999-05-06
DE19651872A1 (de) 1998-06-18
EP0848400A2 (fr) 1998-06-17
DE59711293D1 (de) 2004-03-18

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