EP0158724B1 - Switch - Google Patents

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Publication number
EP0158724B1
EP0158724B1 EP84115143A EP84115143A EP0158724B1 EP 0158724 B1 EP0158724 B1 EP 0158724B1 EP 84115143 A EP84115143 A EP 84115143A EP 84115143 A EP84115143 A EP 84115143A EP 0158724 B1 EP0158724 B1 EP 0158724B1
Authority
EP
European Patent Office
Prior art keywords
switch
strip
housing
fixed contacts
contact
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
Application number
EP84115143A
Other languages
German (de)
French (fr)
Other versions
EP0158724A1 (en
Inventor
Eugène Dipl.-Ing. Dellaert
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to AT84115143T priority Critical patent/ATE30808T1/en
Publication of EP0158724A1 publication Critical patent/EP0158724A1/en
Application granted granted Critical
Publication of EP0158724B1 publication Critical patent/EP0158724B1/en
Expired legal-status Critical Current

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Classifications

    • 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
    • H01H1/24—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting
    • H01H1/26—Contacts characterised by the manner in which co-operating contacts engage by abutting with resilient mounting with spring blade support
    • 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
    • H01H15/10—Operating parts
    • H01H15/102—Operating parts comprising cam devices
    • 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
    • H01H15/005—Switches having rectilinearly-movable operating part or parts adapted for actuation in opposite directions, e.g. slide switch adapted for connection with printed circuit boards

Definitions

  • the invention relates to a switch with two pin-like fixed contacts penetrating a housing base plate at a certain distance from one another and a contact bridge made from a spring plate and consisting of a flat material strip and extending between the fixed contacts, which in the region of a first end section has one out of the Strip has bent tabs and is clamped by means of the tab between a housing wall and one of the two fixed contacts, and in which an actuating body guided in the switch housing is provided with at least one projection, which has at least one correspondingly curved section of the contact bridge for its actuation or for locking of the actuator cooperates.
  • Such a switch is known from DE-A-2 621 864.
  • the contact bridge which is made of a spring plate and consists of a flat material strip, exerts a force directed away from the base plate on the actuating body which is pivotably mounted there and has to be absorbed by an upper housing part.
  • the upper housing part must be attached to a lower housing part or to a housing base plate in a relatively complex manner.
  • the object of the invention is therefore to design a switch of the type mentioned in such a way that the largest possible. Simplicity and ease of installation of the switch from the contact bridge in any position of the actuating body no force directed away from the base plate is exerted on the actuating body.
  • this object is achieved in that the flat material strip is arranged with its flat sides at right angles to the course of the housing base plate in the switch housing, that the strip with its first end section obliquely to the connecting line of the two fixed contacts between a correspondingly provided support wall of the housing and one The first of the two fixed contacts is clamped by means of the flap and is resiliently supported with its other, second end section with the resultant pretension on the other second of the two fixed contacts, and that the actuating body is a contact slide guided in the housing parallel to the connecting line between the two fixed contacts.
  • the strip is bulged in a trapezoidal shape on the side of the free end of the first end section in a central region
  • the contact slider has a plate-shaped extension towards the base plate, which is in the position of the switch in protrudes beyond the bulge of the central region and at its end facing the second fixed contact end with a transversely directed to the connecting line projection for acting on a forward portion of the central Stre i fen Schemees and Rastverhakung behind an opening provided in front of the second fixed contact bending of the strip is provided.
  • the contact slide is supported on the one hand with its attachment on a platform raised relative to the base plate and on the other hand on a cover plate of the housing.
  • the attachment By supporting the contact slide via its attachment on a platform that is higher than the rest of the base plate, the attachment has a relatively large dimensional stability despite its relatively slim design, since it only has to be dimensioned relatively short in the direction of the base plate.
  • a further embodiment of the invention provides that the cover plate is inserted between two side walls of the housing which are provided as end stops for the contact slide and are integral with the base plate and thereby rest on two further side walls forming guide walls of the contact slide, and that the cover plate has a guide slot for one has actuating cams protruding from the contact slide.
  • This configuration of the switch is advantageously made possible by the force-free guidance of the contact slide in the housing against the cover plate, since it is, for. B. is sufficient if the cover plate is provided on the edge side with a plastically deformable ribbing. When the cover plate is pressed between the side walls of the housing, which form stops for the contact slide, the ribbing ensures that the cover plate is sufficiently securely fixed to the switch housing.
  • the switch is used in a switch arrangement with a A plurality of mutually connected switch housings which are provided in parallel and are separated from one another by the guide side walls and have a common cover plate and each have a pair of fixed contacts, a contact bridge and a contact slide.
  • the switch housing has a base plate 1, from which side walls 2, 3 which are integral with the base plate 1 protrude at right angles to the base plate.
  • the side walls 2. 3 enclose together with the base plate 1 an essentially elongated cuboid cavity 28 into which pins 4 penetrate the base plate 1 and are anchored therein.
  • Each of these pins is assigned to a narrow side 29 of the cavity 28 and forms a fixed contact 6a, 6b of the switch with an end projecting into the cavity 28 parallel to the side walls 2, 3.
  • connection elements 5 which can be inserted into grid holes in a circuit board (not shown).
  • a contact bridge 7 made of a spring metal strip and consisting of a flat material strip is provided.
  • the strip 7 is in constant electrical connection with the first 6a of the two fixed contacts 6a, 6b. This is brought about by the fact that the flat sides 9 of the strip 7 arranged at right angles to the course of the base plate 1 in the housing cavity 28 in the region of a first end section 8a assigned to the first fixed contact 6a form a window 11 from the cross-section to the course of the strip 7 Strip 7 has bent tabs 12 and rests with this tab 12, the free end of which is directed away from the base plate 1, resiliently against the first fixed contact 6a.
  • the resilient abutment of the tab 12 on the first fixed contact 6a is brought about in that the strip 7 with its first end section 8a on its side facing away from the first fixed contact 6a by the spring action of the tab 12 against a body 30 projecting into the cavity 28 integrally connected to the base plate 1. formed support wall 10 is pressed.
  • the tab 12 can also be attached to the fixed contact 6a by a welded connection, the z. B. is generated by means of a laser.
  • the support wall 10 extends at right angles to the base plate 1 and obliquely to the connecting line 26 between the two fixed contacts 6a and 6b.
  • the first end section 8a of the strip 7 also extends obliquely to the connecting line 26.
  • the second end section 8b thereof which is assigned to the other second fixed contact 6b, must therefore be on the same side behind this fixed contact 6b , on which the first end section 8a is located with respect to the first fixed contact 6a, are bent back.
  • the strip 7 is thus provided with a bias by the inclination of the first end section 8a with respect to the connecting line 26, with which it bears with its second end section 8b against the second fixed contact 6b.
  • the body 30, which forms the support wall 10 with its side facing the first fixed contact 6a is provided with bevels 31.
  • the body 30 and the first end section 8a of the strip 7 protrude the first fixed contact 6a approximately with the width of a border 13 which the window 11 in the first end section 8a of the strip 7 on the upper side of the strip, that is to say that facing away from the base plate 1 Side, limited.
  • a recess 14 is provided in the body 30, so that the boundary 13 can be gripped by an insertion tool unhindered when the first end section 8a is inserted between the support wall 10 and the first fixed contact 6a.
  • the strip 7 is provided in a central region 15 with an approximately trapezoidal shape of the strip 7 with a bulge 32 which is directed towards the free end 27 of the first end section 8a.
  • a plate-shaped extension 16 of the contact slide 17 protrudes from above.
  • the extension 16 is free of forces in the region of the bulge 32.
  • the contact slide 17 is guided parallel to the connecting line 26 through the side walls 3, which extend parallel to the connecting line 26.
  • transverse sidewalls 2 form end stops for the contact slide 17. If the contact slide is moved against the second fixed contact 6b, the shoulder 16 runs with a dome-shaped projection 18 projecting from the shoulder 16 transversely to the direction of movement of the contact slide onto an inclined section of the strip 7, the through the bulge 32 on the side of the second fixed contact 6b in the course of the strip 7 is formed.
  • the second end section 8b of the strip 7 is thereby lifted off the second fixed contact 6b and thus the electrical connection between the first and the second fixed contact is interrupted.
  • a bend 20 provided in the course of the strip 7 between the central region 15 and the second end section 8b is dimensioned such that the projection 16 with the projection 18 on the side of the second fixed contact 6b can snap behind the bend 20, as a result of which the contact slide 17 in the switch off position is held on the one hand by a side wall 20, and on the other hand by the projection 18, which is supported on the bend 20.
  • the contact slide 17 need only be briefly moved in the direction of the first fixed contact 6b, because as soon as the projection 18 has overcome the bend 20. the contact slide 17 is automatically brought back into its other end position assigned to the switch-off position by the inclined section 19 of the strip 7.
  • the projection 16 lies on the side facing away from the strip 7 of one of the two side walls 3 of the housing, so that forces acting on the extension 16 from the strip 7 are intercepted by this wall.
  • the approximately block-shaped contact slide 17 is supported in the direction of the base plate 1 via the extension 16 on a platform 21 which has a higher level than the rest of the base plate 1, so that the length of the extension 16 in the direction of the base plate 1 to an extent can be limited, which ensures sufficient stability of the approach 16.
  • the strip 7 Dimensioned relatively wide in the area of the first end section 8a and relatively narrow in the area of the second end section 8b, the upper edge of the strip 7 facing away from the base plate 1 running essentially parallel to the base plate 1, but the edge of the strip 7 facing the base plate 1 between the Inclined portion 19 and the first end portion 8a of the strip 7 has a transition portion 33 directed obliquely upward from the base plate 1.
  • the cavity 28 is closed by a cover plate 22 which is inserted between those side walls 2 of the housing which form end stops for the contact slide 17.
  • the cover slide 22 holds the contact slide 17 in the cavity 28 in the direction facing away from the base plate 1.
  • An actuating cam 24 of the contact slide 17 protrudes through a guide slot 23 of the cover plate 22 and is made flush with the free end of the side walls 2.
  • the cover plate 22 forms on the side facing away from the base plate 1 a conical trough 34 which surrounds the actuating cam 24 at least on three sides, so that it can be securely gripped by an actuating tool.
  • the cover plate 22 is provided peripherally with plastically deformable ribs that deform during pressing the cover plate 22 between the side walls 2 and thereby the cover plate 22 - hold in the assembled state.
  • the cover plate 22 lies on the guide side walls 3, which extend parallel to the connecting line 26.
  • the switch is ideally suited to be part of a switch arrangement as a switch cell, which is constructed in the manner of a dual-inline module and in which the connection elements 5 are parallel to one another in two rows from the housing in the pitch of the holes Protruding PCB.
  • Each switch can be operated independently of the other switches in the switch arrangement.
  • the side walls 2, 3 of the housing are formed in one piece with the base plate 1 and the pins 4 are anchored in a gas-tight and thus solder and washproof manner in the base plate 1, harmful substances can only penetrate into the switch interior via the guide slot 23.
  • the dimensioning of the actuating cam 24 flush with the side walls 2 and the end side walls 3 of a switch arrangement makes it possible to cover the top of the switch or a switch arrangement consisting of a plurality of such switches with a common cover plate 22 and a one-piece switch housing consisting of a base plate 1 and side walls 2, 3 to seal with an adhesive film 25 which is only removed after the printed circuit board connected to the switch has been completely assembled.

Abstract

1. A switch having two pin-shaped fixed contacts (6a, 6b), which pass through a housing base plate (1) at a predetermined distance from one another and a contact bridge (7) made of spring sheet metal and consisting of a strip of flat material which extends between the fixed contacts (6a, 6b) and, in the region of a first end section (8a), has a tab (12) bent out of the strip and is braced by means of the tab (12) between one wall (10) of the housing and one of the fixed contacts (6a), and in which an operating body (17) guided in the switch housing, is provided with at least one projection (18) which interacts with at least one suitably bent section of the contact bridge (7) to operate or lock the operating body as the case may be, characterised in that the strip of flat material (7) is arranged in the switch housing with its flat faces (9) at right angles to the direction of the housing base plate (1) ; that the strip (7) is fixed at its first end section (8a) obliquely to the connecting line (26) of the two fixed contacts (6a, 6b), between a supporting wall (10) of the housing similarly obliquely positioned, and a first one (6a) of the two fixed contacts (6a, 6b) by means of the tab (12), and with a prestress so produced, is resiliently supported at its other, second end section (8b), on the other, second (6b) of the two fixed contacts (6a, 6b) ; and that the operating body is a contact slide (17) guided in the housing parallel to the connecting line (26) between the two fixed contacts (6a, 6b).

Description

Die Erfindung bezieht sich auf einen Schalter mit zwei in einem bestimmten Abstand voneinander eine Gehäusebodenplatte durchdringenden, stiftartigen Festkontakten und einer aus einem Federblech hergestellten, aus einem Flachmaterial-Streifen bestehenden, zwischen den Festkontakten sich erstreckenden Kontaktbrücke, die im Bereich eines ersten Endabschnittes einen aus dem Streifen herausgebogenen Lappen aufweist und mittels des Lappens zwischen einer Gehäusewand und einem der beiden Festkontakte verspannt ist, und bei dem ein im Schaltergehäuse geführter Betätigungskörper mit wenigstens einem Vorsprung versehen ist, der mit wenigstens einem entsprechend gekrümmten Abschnitt der Kontaktbrücke zu deren Betätigung bzw. zur Rastierung des Betätigungskörpers zusammenwirkt.The invention relates to a switch with two pin-like fixed contacts penetrating a housing base plate at a certain distance from one another and a contact bridge made from a spring plate and consisting of a flat material strip and extending between the fixed contacts, which in the region of a first end section has one out of the Strip has bent tabs and is clamped by means of the tab between a housing wall and one of the two fixed contacts, and in which an actuating body guided in the switch housing is provided with at least one projection, which has at least one correspondingly curved section of the contact bridge for its actuation or for locking of the actuator cooperates.

Ein derartiger Schalter ist aus der DE-A-2 621 864 bekannt. Bei dem bekannten Schalter übt die aus einem Federblech hergestellte, aus einem Flachmaterial-Streifen bestehende Kontaktbrücke auf den dort schwenkbar gelagerten Betätigungskörper eine von der Bodenplatte weggerichtete Kraft aus, die von einem Gehäuseoberteil abgefangen werden muß. Infolgedessen muß das Gehäuseoberteil relativ aufwendig an einem Gehäuseunterteil bzw. an einer Gehäusebodenplatte befestigt werden.Such a switch is known from DE-A-2 621 864. In the known switch, the contact bridge, which is made of a spring plate and consists of a flat material strip, exerts a force directed away from the base plate on the actuating body which is pivotably mounted there and has to be absorbed by an upper housing part. As a result, the upper housing part must be attached to a lower housing part or to a housing base plate in a relatively complex manner.

Aufgabe der Erfindung ist es daher, einen Schalter der eingangs genannten Art so auszubilden, daß bei größtmöglicher. Einfachheit und Montagefreundlichkeit des Schalters von der Kontaktbrücke in jeder Position des Betätigungskörpers keine von der Bodenplatte weggerichtete Kraft auf den Betätigungskörper ausgeübt wird.The object of the invention is therefore to design a switch of the type mentioned in such a way that the largest possible. Simplicity and ease of installation of the switch from the contact bridge in any position of the actuating body no force directed away from the base plate is exerted on the actuating body.

Erfindungsgemäß ergibt sich die Lösung dieser Aufgabe dadurch, daß der Flachmaterial-Streifen mit seinen Flachseiten rechtwinkelig zum Verlauf der Gehäusebodenplatte im Schaltergehäuse angeordnet ist, daß der Streifen mit seinem ersten Endabschnitt schräg zur Verbindungslinie der beiden Festkontakte zwischen einer entsprechend schräg vorgesehenen Abstützwand des Gehäuses und einem ersten der beiden Festkontakte mittels des Lappens eingespannt und mit einer dadurch erzeugten Vorspannung mit seinem anderen, zweiten Endabschnitt federnd an dem anderen zweiten der beiden Festkontakte abgestützt ist und daß der Betätigungskörper ein parallel zur Verbindungslinie zwischen den beiden Festkontakten im Gehäuse geführter Kontaktschieber ist.According to the invention, this object is achieved in that the flat material strip is arranged with its flat sides at right angles to the course of the housing base plate in the switch housing, that the strip with its first end section obliquely to the connecting line of the two fixed contacts between a correspondingly provided support wall of the housing and one The first of the two fixed contacts is clamped by means of the flap and is resiliently supported with its other, second end section with the resultant pretension on the other second of the two fixed contacts, and that the actuating body is a contact slide guided in the housing parallel to the connecting line between the two fixed contacts.

Ein besonderer Vorteil dieser Ausgestaltung des Schalters ist darin zu sehen, daß die Vorspannung der Kontaktbrücke (Flachmaterial-Streifen). mit der diese gegen den zweiten Festkontakt gedrückt wird, automatisch durch den Winkel, den die Abstützwand mit der Verbindungslinie bildet, bei der Montage des Schalters eingestellt wird und dadurch bei jedem Schalter ein stets gleichbleibender Kontaktdruck gewährleistet ist.A particular advantage of this configuration of the switch can be seen in the fact that the contact bridge is pretensioned (flat material strips). with which this is pressed against the second fixed contact, automatically by the angle that the support wall forms with the connecting line, is set during assembly of the switch and thereby a constant contact pressure is guaranteed with each switch.

In weiterer Ausgestaltung der Erfindung ist vorgesehen, daß der Streifen in einem mittleren Bereich auf die Seite des freien Endes des ersten Endabschnittes etwa trapezförmig ausgebaucht ist, daß der Kontaktschieber zur Bodenplatte hin einen plattenförmigen Ansatz aufweist, der in der « Ein ―Stettung des Schalters in die Ausbauchung des mittleren Bereiches ragt und an seinem dem zweiten Festkontakt zugewandten Ende mit einem quer zur Verbindungslinie gerichteten Vorsprung zur Einwirkung auf einen Schrägabschnitt des mittleren Streifenbereiches und zur Rastverhakung hinter einer vor dem zweiten Festkontakt vorgesehenen Abwinkelung des Streifens versehen ist.In a further embodiment of the invention it is provided that the strip is bulged in a trapezoidal shape on the side of the free end of the first end section in a central region, that the contact slider has a plate-shaped extension towards the base plate, which is in the position of the switch in protrudes beyond the bulge of the central region and at its end facing the second fixed contact end with a transversely directed to the connecting line projection for acting on a forward portion of the central Stre i fenbereiches and Rastverhakung behind an opening provided in front of the second fixed contact bending of the strip is provided.

Hieraus ergibt sich vorteilhaft, daß der Kontaktschieber in der Einschaltstellung des Schalters durch die etwa trapezförmige Ausbauchung in dieser Position ohne weitere Hilfsmittel festgehalten wird, während in der Ausschaltstellung des Schalters der Vorsprung des Ansatzes in Richtung zum zweiten Festkontakt hinter einer Abwinkelung des Flachmaterial-Streifens (Kontaktbrücke) einrastet und dadurch sowohl den Kontaktschieder in dieser Position als auch den Flachmaterial-Streifen (Kontaktbrücke) in seiner vom zweiten, Festkontakt abgehobenen Stellung festhält.This has the advantage that the contact slide is held in this position without further aids in the switch-on position by the approximately trapezoidal bulge, while in the switch-off position the projection of the attachment in the direction of the second fixed contact behind an angled-off strip of the flat material ( Contact bridge) engages and thereby holds both the contact arm in this position and the flat material strip (contact bridge) in its position lifted from the second, fixed contact.

Im Rahmen vorliegender Erfindung kann weiter vorgesehen sein, daß der Kontaktschieber einerseits mit seinem Ansatz an einer gegenüber der Bodenplatte erhöhten Plattform, andererseits an einer Deckelplatte des Gehäuses abgestützt ist.In the context of the present invention, it can further be provided that the contact slide is supported on the one hand with its attachment on a platform raised relative to the base plate and on the other hand on a cover plate of the housing.

Durch die Abstützung des Kontaktschiebers über seinen Ansatz an einer gegenüber dem Rest der Bodenplatte erhöhten Plattform hat der Ansatz trotz relativ schlanker Ausbildung eine relativ große Formstabilität, da er in Richtung zur Bodenplatte hin nur relativ kurz bemessen werden muß.By supporting the contact slide via its attachment on a platform that is higher than the rest of the base plate, the attachment has a relatively large dimensional stability despite its relatively slim design, since it only has to be dimensioned relatively short in the direction of the base plate.

Eine weitere Ausgestaltung der Erfindung sieht vor, daß die Deckelplatte zwischen zwei als Endanschläge für den Kontaktschieber vorgesehene, mit der Bodenplatte einstückige Seitenwände des Gehäuses eingefügt ist und dabei auf zwei weiteren, Führungswände des Kontaktschiebers bildenden Seitenwänden aufliegt, und daß die Deckelplatte einen Führungsschlitz für einen vom Kontaktschieber abstehenden Betätigungs- Nocken aufweist.A further embodiment of the invention provides that the cover plate is inserted between two side walls of the housing which are provided as end stops for the contact slide and are integral with the base plate and thereby rest on two further side walls forming guide walls of the contact slide, and that the cover plate has a guide slot for one has actuating cams protruding from the contact slide.

Diese Ausgestaltung des Schalters wird vorteilhaft durch die gegen die Deckelplatte hin kräftefreie Führung des Kontaktschiebers im Gehäuse ermöglicht, da es z. B. ausreicht, wenn die Deckelplatte randseitig mit einer plastisch deformierbaren Rippung versehen wird. Beim Eindrücken der Deckelplatte zwischen die Seitenwände des Gehäuses, die Anschläge für den Kontaktschieber bilden, gewährleistet die Rippung, daß die Deckelplatte ausreichend sicher am Schaltergehäuse fixiert ist.This configuration of the switch is advantageously made possible by the force-free guidance of the contact slide in the housing against the cover plate, since it is, for. B. is sufficient if the cover plate is provided on the edge side with a plastically deformable ribbing. When the cover plate is pressed between the side walls of the housing, which form stops for the contact slide, the ribbing ensures that the cover plate is sufficiently securely fixed to the switch housing.

Schließlich kann im Rahmen der Erfindung noch vorgesehen sein, daß der Schalter in einer Schalteranordnung verwendet wird, mit einer Mehrzahl von zueinander parallel vorgesehenen, durch die Führungsseitenwände voneinander getrennten einstückig zusammenhängenden Schaltergehäusen mit gemeinsamer Deckelplatte und mit jeweils einem Paar von Festkontakten, einer Kontaktbrücke und einem Kontaktschieber.Finally, it can be provided in the context of the invention that the switch is used in a switch arrangement with a A plurality of mutually connected switch housings which are provided in parallel and are separated from one another by the guide side walls and have a common cover plate and each have a pair of fixed contacts, a contact bridge and a contact slide.

Ein Ausführungsbeispiel eines Schalters nach der Erfindung wird nachfolgend anhand von drei Figuren noch näher erläutert.An embodiment of a switch according to the invention is explained in more detail below with reference to three figures.

Dabei zeigen, jeweils stark vergrößert und teilweise im Schnitt,

  • Fig. 1 eine Seitenansicht des Schalters.
  • Fig. 2 den Schalter von oben gesehen, mit entfernter Dekkefplatte und geschnittenem Kontaktschieberansatz, und
  • Fig. 3 eine Seitenansicht des Schalters mit teilweise geschnittenem Schaltergehäuse, ohne Kontaktbrücke und Festkontakte, wobei der Schalter Bestandteil einer Schalteranordnung ist, die aus einer Mehrzahl von zueinander parallel vorgesehenen Schaltern mit einstückig zusammenhängenden Schaltergehäusen ist.
Show, each greatly enlarged and partly in section,
  • Fig. 1 is a side view of the switch.
  • Fig. 2 seen the switch from above, with removed Dekkefplatte and cut contact slide approach, and
  • Fig. 3 is a side view of the switch with a partially sectioned switch housing, without a contact bridge and fixed contacts, the switch being part of a switch arrangement which is composed of a plurality of switches provided in parallel with one another with integrally connected switch housings.

Im einzelnen ist den Figuren zu entnehmen, daß das Schaltergehäuse eine Bodenplatte 1 aufweist, von der einstükkig mit der Bodenplatte 1 zusammenhängende Seitenwände 2, 3 rechtwinkelig zur Bodenplatte abstehen. Die Seitenwände 2. 3 umschließen dabei zusammen mit der Bodenplatte 1 einen im wesentlichen länglichen quaderförmigen Hohlraum 28, in den die Bodenplatte 1 durchdringende und in dieser verankerte Stifte 4 hineinragen. Ein jeder dieser Stifte ist einer Schmalseite 29 des Hohlraumes 28 zugeordnet und bildet mit einem in den Hohlraum 28 parallel zu den Seitenwänden 2, 3 hineinragenden Ende jeweils einen Festkontakt 6a, 6b des Schalters.In particular, it can be seen from the figures that the switch housing has a base plate 1, from which side walls 2, 3 which are integral with the base plate 1 protrude at right angles to the base plate. The side walls 2. 3 enclose together with the base plate 1 an essentially elongated cuboid cavity 28 into which pins 4 penetrate the base plate 1 and are anchored therein. Each of these pins is assigned to a narrow side 29 of the cavity 28 and forms a fixed contact 6a, 6b of the switch with an end projecting into the cavity 28 parallel to the side walls 2, 3.

Auf der Außenseite der Bodenplatte 1 bilden die Stifte 4 in Rasterbohrungen einer nicht dargestellten Leiterplatte einsteckbare Anschlußelemente 5.On the outside of the base plate 1, the pins 4 form connection elements 5 which can be inserted into grid holes in a circuit board (not shown).

Zur elektrischen Verbindung der beiden Festkontakte 6a, 6b miteinander ist eine aus einem Federblechstreifen hergestellte, aus einem Flachmaterial-Streifen bestehende Kontaktbrücke 7 vorgesehen.For the electrical connection of the two fixed contacts 6a, 6b to one another, a contact bridge 7 made of a spring metal strip and consisting of a flat material strip is provided.

Mit dem einen ersten 6a der beiden Festkontakte 6a, 6b steht der Streifen 7 in ständiger elektrischer Verbindung. Dies wird dadurch bewirkt, daß der mit seinen Flachseiten 9 rechtwinkelig zum Verlauf der Bodenplatte 1 im Gehäuse-Hohlraum 28 angeordnete Streifen 7 im Bereich eines dem ersten Festkontakt 6a zugeordneten ersten Endabschnitts 8a einen quer zum Verlauf des Streifens 7 unter Bildung eines Fensters 11 aus dem Streifen 7 herausgebogenen Lappen 12 aufweist und mit diesem Lappen 12, dessen freies Ende von der Bodenplatte 1 weggerichtet ist, federnd dem ersten Festkontakt 6a anliegt.The strip 7 is in constant electrical connection with the first 6a of the two fixed contacts 6a, 6b. This is brought about by the fact that the flat sides 9 of the strip 7 arranged at right angles to the course of the base plate 1 in the housing cavity 28 in the region of a first end section 8a assigned to the first fixed contact 6a form a window 11 from the cross-section to the course of the strip 7 Strip 7 has bent tabs 12 and rests with this tab 12, the free end of which is directed away from the base plate 1, resiliently against the first fixed contact 6a.

Das federnde Anliegen des Lappens 12 am ersten Festkontakt 6a wird dadurch bewirkt, daß der Streifen 7 mit seinem ersten Endabschnitt 8a auf seiner vom ersten Festkontakt 6a abgewandten Seite durch die Federwirkung des Lappens 12 gegen eine von einem in den Hohlraum 28 ragenden Körper 30, der einstückig mit der Bodenplatte 1 zusammenhängt. gebildete Abstützwand 10 gedrückt wird. Der Lappen 12 kann außerdem an dem Festkontakt 6a durch eine Schweißverbindung befestigt werden, die z. B. mittels eines Lasers erzeugt wird.The resilient abutment of the tab 12 on the first fixed contact 6a is brought about in that the strip 7 with its first end section 8a on its side facing away from the first fixed contact 6a by the spring action of the tab 12 against a body 30 projecting into the cavity 28 integrally connected to the base plate 1. formed support wall 10 is pressed. The tab 12 can also be attached to the fixed contact 6a by a welded connection, the z. B. is generated by means of a laser.

Die Abstützwand 10 verläuft rechtwinkelig zur Bodenplatte 1 und schräg zur Verbindungslinie 26 zwischen den beiden Festkontakten 6a und 6b. Infolgedessen verläuft auch der erste Endabschnitt 8a des Streifens 7 in gleicher Weise schräg zu der Verbindungslinie 26. Bei der Montage des Streifens 7 muß dieser daher mit seinem zweiten Endabschnitt 8b, der dem anderen zweiten Festkontakt 6b zugeordnet ist, hinter diesen Festkontakt 6b auf dieselbe Seite, auf der sich auch der erste Endabschnitt 8a bezüglich des ersten Festkontaktes 6a befindet, zurückgebogen werden. Der Streifen 7 wird also durch die Schrägstellung des ersten Endabschnittes 8a gegenüber der Verbindungslinie 26 mit einer Vorspannung versehen, mit der er mit seinem zweiten Endabschnitt 8b dem zweiten Festkontakt 6b anliegt.The support wall 10 extends at right angles to the base plate 1 and obliquely to the connecting line 26 between the two fixed contacts 6a and 6b. As a result, the first end section 8a of the strip 7 also extends obliquely to the connecting line 26. When the strip 7 is assembled, the second end section 8b thereof, which is assigned to the other second fixed contact 6b, must therefore be on the same side behind this fixed contact 6b , on which the first end section 8a is located with respect to the first fixed contact 6a, are bent back. The strip 7 is thus provided with a bias by the inclination of the first end section 8a with respect to the connecting line 26, with which it bears with its second end section 8b against the second fixed contact 6b.

Um das Einsetzen des Streifens 7 zwischen die Abstützwand 10 und den ersten Festkontakt 6a zu erleichtern, ist der Körper 30, der mit seiner dem ersten Festkontakt 6a zugewandten Seite die Abstützwand 10 bildet, mit Abschrägungen 31 versehen. Außerdem überragt der Körper 30 und der erste Endabschnitt 8a des Streifens 7 den ersten Festkontakt 6a etwa mit der Breite einer Berandung 13, die das Fenster 11 im ersten Endabechnitt 8a des Streifens 7 auf der oberen Seite des Streifens, also der von der Bodenplatte 1 abgewandten Seite, begrenzt. Im Bereich dieser Berandung 13 ist im Körper 30 eine Aussparung 14 vorgesehen, so daß die Berandung 13 beim Einschieben des ersten Endabschnittes 8a zwischen die Abstützwand 10 und den ersten Festkontakt 6a ungehindert von einem Einsetzwerkzeug erfaßt werden kann.In order to facilitate the insertion of the strip 7 between the support wall 10 and the first fixed contact 6a, the body 30, which forms the support wall 10 with its side facing the first fixed contact 6a, is provided with bevels 31. In addition, the body 30 and the first end section 8a of the strip 7 protrude the first fixed contact 6a approximately with the width of a border 13 which the window 11 in the first end section 8a of the strip 7 on the upper side of the strip, that is to say that facing away from the base plate 1 Side, limited. In the area of this boundary 13, a recess 14 is provided in the body 30, so that the boundary 13 can be gripped by an insertion tool unhindered when the first end section 8a is inserted between the support wall 10 and the first fixed contact 6a.

Zwischen dem ersten Endabschnitt 8a und dem zweiten Endabschnitt 8b, in dessen Bereich die Kontaktgabe mit dem zweiten Festkontakt 6b erfolgt. ist der Streifen 7 in einem mittleren Bereich 15 durch eine etwa trapezförmige Formgebung des Streifens 7 mit einer Ausbauchung 32 versehen, die auf die Seite des freien Endes 27 des ersten Endabschnittes 8a gerichtet ist.Between the first end section 8a and the second end section 8b, in the area of which contact is made with the second fixed contact 6b. the strip 7 is provided in a central region 15 with an approximately trapezoidal shape of the strip 7 with a bulge 32 which is directed towards the free end 27 of the first end section 8a.

In den Bereich der Ausbauchung 32 ragt von oben her ein plattenförmiger Ansatz 16 des Kontaktschiebers 17. In der Einschaltstellung des Schalters befindet sich der Ansatz 16 kräftefrei im Bereich der Ausbauchung 32. Der Kontaktschieber 17 wird parallel zur Verbindungslinie 26 durch die Seitenwände 3 geführt, die sich parallel zur Verbindungslinie 26 erstrecken. Hierzu quer verlaufende Seitenwände 2 bilden Endanschläge für den Kontaktschieber 17. Wird der Kontaktschieber gegen den zweiten Festkontakt 6b bewegt, so läuft der Ansatz 16 mit einem quer zur Bewegungsrichtung des Kontaktschiebers vom Ansatz 16 abstehenden kuppenförmigen Vorsprung 18 auf einen Schrägabschnitt des Streifens 7 auf, der durch die Ausbauchung 32 auf der Seite des zweiten Festkontaktes 6b im Verlauf des Streifens 7 gebildet wird. Der zweite Endabschnitt 8b des Streifens 7 wird dadurch vom zweiten Festkontakt 6b abgehoben und damit die elektrische Verbindung zwischen dem ersten und dem zweiten Festkontakt unterbrochen. Eine im Verlauf des Streifens 7 zwischen dem mittleren Bereich 15 und dem zweiten Endabschnitt 8b vorgesehene Abwinkelung 20 ist so bemessen, daß der Ansatz 16 mit dem Vorsprung 18 auf der Seite des zweiten Festkontaktes 6b hinter der Abwinkelung 20 einrasten kann, wodurch der Kontaktschieber 17 in der Ausschaltstellung des Schalters einerseits durch eine Seitenwand 20, andererseits durch den Vorsprung 18, der sich an der Abwinkelung 20 abstützt, festgehalten wird. Zum Einschalten des Schalters braucht der Kontaktschieber 17 lediglich kurzzeitig in Richtung auf den ersten Festkontakt 6b bewegt zu werden, denn, sobald der Vorsprung 18 die Abwinkelung 20 überwunden hat. wird der Kontaktschieber 17 durch den Schrägabschnitt 19 des Streifens 7 selbsttätig wieder in seine, der Ausschaltstellung des Schalters zugeordnete andere Endposition gebracht.In the area of the bulge 32, a plate-shaped extension 16 of the contact slide 17 protrudes from above. In the switched-on position of the switch, the extension 16 is free of forces in the region of the bulge 32. The contact slide 17 is guided parallel to the connecting line 26 through the side walls 3, which extend parallel to the connecting line 26. For this purpose, transverse sidewalls 2 form end stops for the contact slide 17. If the contact slide is moved against the second fixed contact 6b, the shoulder 16 runs with a dome-shaped projection 18 projecting from the shoulder 16 transversely to the direction of movement of the contact slide onto an inclined section of the strip 7, the through the bulge 32 on the side of the second fixed contact 6b in the course of the strip 7 is formed. The second end section 8b of the strip 7 is thereby lifted off the second fixed contact 6b and thus the electrical connection between the first and the second fixed contact is interrupted. A bend 20 provided in the course of the strip 7 between the central region 15 and the second end section 8b is dimensioned such that the projection 16 with the projection 18 on the side of the second fixed contact 6b can snap behind the bend 20, as a result of which the contact slide 17 in the switch off position is held on the one hand by a side wall 20, and on the other hand by the projection 18, which is supported on the bend 20. To switch on the switch, the contact slide 17 need only be briefly moved in the direction of the first fixed contact 6b, because as soon as the projection 18 has overcome the bend 20. the contact slide 17 is automatically brought back into its other end position assigned to the switch-off position by the inclined section 19 of the strip 7.

Der Ansatz 16 liegt auf der vom Streifen 7 abgewandten Seite einer der beiden Seitenwände 3 des Gehäuses an, so daß durch diese Wand vom Streifen 7 auf den Ansatz 16 einwirkende Kräfte abgefangen werden.The projection 16 lies on the side facing away from the strip 7 of one of the two side walls 3 of the housing, so that forces acting on the extension 16 from the strip 7 are intercepted by this wall.

Der etwa blockförmige Kontaktschieber 17 stützt sich in Richtung zur Bodenplatte 1 hin über den Ansatz 16 an einer Plattform 21 ab, die ein gegenüber dem Rest der Bodenplatte 1 höheres Niveau aufweist, so daß die Länge des Ansatzes 16 in Richtung zur Bodenplatte 1 auf ein Ausmaß beschränkt werden kann, das eine ausreichende Stabilität des Ansatzes 16 sicherstellt.The approximately block-shaped contact slide 17 is supported in the direction of the base plate 1 via the extension 16 on a platform 21 which has a higher level than the rest of the base plate 1, so that the length of the extension 16 in the direction of the base plate 1 to an extent can be limited, which ensures sufficient stability of the approach 16.

Um dem Schrägabschnitt 19 und dem zweiten Endabschnitt 8b des Streifens 7 ein Einschwenken in den Bereich der Plattform 21 zu ermöglichen und zugleich mit dem ersten Endabschnitt 8a des Streifens 7 eine stabile Positionierung des Streifens 7 gegenüber dem ersten Festkontakt 6a zu gewährleisten, ist der Streifen 7 im Bereich des ersten Endabschnittes 8a relativ breit und im Bereich des zweiten Endabschnittes 8b relativ schmal bemessen, wobei die von der Bodenplatte 1 abgewandte Oberkante des Streifens 7 im wesentlichen parallel zur Bodenplatte 1 verläuft, jedoch die der Bodenplatte 1 zugewandte Kante des Streifens 7 zwischen dem Schrägabschnitt 19 und dem ersten Endabschnitt 8a des Streifens 7 einen von der Bodenplatte 1 schräg nach oben gerichteten Übergangsabschnitt 33 aufweist.In order to enable the inclined section 19 and the second end section 8b of the strip 7 to pivot into the region of the platform 21 and at the same time to ensure a stable positioning of the strip 7 with respect to the first fixed contact 6a with the first end section 8a of the strip 7, the strip 7 Dimensioned relatively wide in the area of the first end section 8a and relatively narrow in the area of the second end section 8b, the upper edge of the strip 7 facing away from the base plate 1 running essentially parallel to the base plate 1, but the edge of the strip 7 facing the base plate 1 between the Inclined portion 19 and the first end portion 8a of the strip 7 has a transition portion 33 directed obliquely upward from the base plate 1.

Auf der von der Bodenplatte 1 abgewandten Seite des Gehäuses ist der Hohlraum 28 durch eine Deckelplatte 22 verschlossen, die zwischen diejenigen Seitenwände 2 des Gehäuses eingefügt ist, die Endanschläge für den Kontaktschieber 17 bilden. Durch die Deckelplatte 22 wird der Kontaktschieber 17 im Hohlraum 28 in der von der Bodenplatte 1 abgewandten Richtung festgehalten. Ein Betätigungsnocken 24 des Kontaktschiebers 17 ragt durch einen Führungsschlitz 23 der Deckelplatte 22 und ist mit dem freien Ende der Seitenwände 2 bündig gemacht. Die Deckelplatte 22 bildet auf der von der Bodenplatte 1 abgewandten Seite eine konische Mulde 34, die den Betätigungsnokken 24 zumindest an drei Seiten umgibt, so daß dieser sicher von einem Betätigungswerkzeug erfaßt werden kann.On the side of the housing facing away from the base plate 1, the cavity 28 is closed by a cover plate 22 which is inserted between those side walls 2 of the housing which form end stops for the contact slide 17. The cover slide 22 holds the contact slide 17 in the cavity 28 in the direction facing away from the base plate 1. An actuating cam 24 of the contact slide 17 protrudes through a guide slot 23 of the cover plate 22 and is made flush with the free end of the side walls 2. The cover plate 22 forms on the side facing away from the base plate 1 a conical trough 34 which surrounds the actuating cam 24 at least on three sides, so that it can be securely gripped by an actuating tool.

Die Deckelplatte 22 ist randseitig mit plastisch deformierbaren Rippen versehen, die sich beim Eindrücken der Deckelplatte 22 zwischen die Seitenwände 2 verformen und dadurch die Deckelplatte 22-im eingebauten Zustand festhalten. Die Deckelplatte 22 liegt dabei den Führungsseitenwänden 3 auf, die sich parallel zur Verbindungslinie 26 erstrecken.The cover plate 22 is provided peripherally with plastically deformable ribs that deform during pressing the cover plate 22 between the side walls 2 and thereby the cover plate 22 - hold in the assembled state. The cover plate 22 lies on the guide side walls 3, which extend parallel to the connecting line 26.

Wie Fig. 3 zeigt, ist der Schalter bestens geeignet, um als Schalterzelle Bestandteil einer Schalteranordnung zu sein, die nach Art eines dual-inline Bausteines aufgebaut ist und bei der die Anschlußelemente 5 zueinander parallel in zwei Reihen aus dem Gehäuse im Rastermaß der Bohrungen einer Leiterplatte hervorstehen. Jeder Schalter kann unabhängig von den anderen Schaltern der Schalteranordnung betätigt werden.As shown in Fig. 3, the switch is ideally suited to be part of a switch arrangement as a switch cell, which is constructed in the manner of a dual-inline module and in which the connection elements 5 are parallel to one another in two rows from the housing in the pitch of the holes Protruding PCB. Each switch can be operated independently of the other switches in the switch arrangement.

Da die Seitenwände 2, 3 des Gehäuses einstückig mit der Bodenplatte 1 ausgebildet sind und die Stifte 4 gasdicht und damit löt- und waschdicht in der Bodenplatte 1 verankert sind, können schädliche Stoffe nur über den Führungsschlitz 23 in das Schalterinnere eindringen. Die mit den Seitenwänden 2 und den Endseitenwänden 3 einer Schalteranordnung bündige Bemessung des Betätigungsnockens 24 ermöglicht es jedoch, die Oberseite des Schalters bzw. einer aus einer Mehrzahl solcher Schalter bestehenden Schalteranordhung mit gemeinsamer Deckelplatte 22 und einstückigem aus Bodenplatte 1 und Seitenwänden 2, 3 bestehendem Schaltergehäuse, mit einer Klebefolie 25 zu verschließen, die erst nach vollständiger Konfektionierung der mit dem Schalter verbundenen Leiterplatte abgezogen wird.Since the side walls 2, 3 of the housing are formed in one piece with the base plate 1 and the pins 4 are anchored in a gas-tight and thus solder and washproof manner in the base plate 1, harmful substances can only penetrate into the switch interior via the guide slot 23. However, the dimensioning of the actuating cam 24 flush with the side walls 2 and the end side walls 3 of a switch arrangement makes it possible to cover the top of the switch or a switch arrangement consisting of a plurality of such switches with a common cover plate 22 and a one-piece switch housing consisting of a base plate 1 and side walls 2, 3 to seal with an adhesive film 25 which is only removed after the printed circuit board connected to the switch has been completely assembled.

Während des Schalterbetriebes reicht der durch den blockförmigen Kontaktschieber 7 in jeder Position des Kontaktschiebers bewirkte Verschluß des Führungsschlitzes 23 aus.

Figure imgb0001
Figure imgb0002
 During the switch operation, the closure of the guide slot 23 caused by the block-shaped contact slide 7 in any position of the contact slide is sufficient.
Figure imgb0001
Figure imgb0002

Claims (7)

1. A switch having two pin-shaped fixed contacts (6a, 6b), which pass through a housing base plate (1) at a predetermined distance from one another and a contact bridge (7) made of spring sheet metal and consisting of a strip of flat material which extends between the fixed contacts (6a, 6b) and, in the region of a first end section (8a), has a tab (12) bent out of the strip and is braced by means of the tab (12) between one wall (10) of the housing and one of the fixed contacts (6a), and in which an operating body (17) guided in the switch housing, is provided with at least one projection (18) which interacts with at least one suitably bent section of the contact bridge (7) to operate or lock the operating body as the case may be, characterised in that the strip of flat material (7) is arranged in the switch housing with its flat faces (9) at right angles to the direction of the housing base plate (1) ; that the strip (7) is fixed at its first end section (8a) obliquely to the connecting line (26) of the two fixed contacts (6a, 6b), between a supporting wall (10) of the housing similarly obliquely positioned, and a first one (6a) of the two fixed contacts (6a, 6b) by means of the tab (12), and with a prestress so produced, is resiliently supported at its other, second end section (8b), on the other, second (6b) of the two fixed contacts (6a, 6b) ; and that the operating body is a contact slide (17) guided in the housing parallel to the connecting line (26) between the two fixed contacts (6a, 6b).
2. A switch as claimed in Claim 1, characterised in that the strip (7) is bulged out in a central section (15) into an approximate trapezium-shape at the side of the free end (27) of the first end section (8a) ; that the contact slide (17) has a plate-shaped attachment (16) towards the base plate (1), which attachment, in the on position of the switch, projects into the bulge of the middle section (15) and is provided at its end which is turned towards the second fixed contact (6b) with a projection (18) directed transversely in relation to the connecting line (26) so as to act upon an oblique section (19) of the central region (15) of the strip and to engage for hook locking behind an angled part (20) of the strip (7).
3. A switch as claimed in Claim 2, characterised in that the contact slide (17) is supported on one side by its attachment (16), on a platform (21) raised in relation to the base plate (1) and, on the other side, on a cover plate (22) of the housing.
4. A switch as claimed in Claim 3, characterised in that the cover plate (22) is inserted between two side walls (2) of the housing, integral with the base plate (1), and serving as end-stops for the contact slide (17), and is thereby supported on two other side walls (3), which serve as guide walls for the contact slide (17).
5. A switch as claimed in Claim 4, characterised in that the cover plate (22) has a guide slot (23) for an operating lug (24) which projects up from the contact slide (17).
6. A switch as claimed in Claim 1, characterised in that the tab (12) is bent out so as to be transverse in relation to the direction of the strip (7), forming a window (11) ; that the strip (7) in the region of its first end section (8a) has a width such that it projects above the first fixed contact (6a) to form a frame (13) for the window (11) ; and that in the region of this frame (13), a recess (14) open at the top is provided in the supporting wall (10).
7. A switch as claimed in one of the previous Claims, characterised by its use in a switch arrangement having a plurality of integral switch housings arranged parallel to one another, and separated from each other by the guide side walls (3) and having a common cover plate (22), and each having a pair of fixed contacts (6a, 6b), a contact bridge (7) and a contact slide (17).
EP84115143A 1984-04-13 1984-12-11 Switch Expired EP0158724B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84115143T ATE30808T1 (en) 1984-04-13 1984-12-11 SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3414073 1984-04-13
DE3414073 1984-04-13

Publications (2)

Publication Number Publication Date
EP0158724A1 EP0158724A1 (en) 1985-10-23
EP0158724B1 true EP0158724B1 (en) 1987-11-11

Family

ID=6233550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84115143A Expired EP0158724B1 (en) 1984-04-13 1984-12-11 Switch

Country Status (5)

Country Link
EP (1) EP0158724B1 (en)
JP (1) JPS60232620A (en)
AT (1) ATE30808T1 (en)
DE (2) DE8411724U1 (en)
NO (1) NO851481L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4312350B2 (en) 2000-06-06 2009-08-12 ウチヤ・サーモスタット株式会社 Thermal protector

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2459000C3 (en) * 1974-12-13 1981-02-26 Friedrich Merk Telefonbau Gmbh, 8000 Muenchen Device for holding contact springs of sets of springs, which can be actuated by switching cams that can be moved along the springs, on printed circuit boards
DE2621864A1 (en) * 1976-05-17 1977-11-24 Siemens Ag Switch with rocking operating element - has L:shaped bridge contact operated by projection of operating element
DE3130952A1 (en) * 1981-08-05 1983-02-24 Rudolf Schadow Gmbh, 1000 Berlin SLIDE SWITCH

Also Published As

Publication number Publication date
JPH0132603B2 (en) 1989-07-07
DE8411724U1 (en) 1986-03-13
ATE30808T1 (en) 1987-11-15
NO851481L (en) 1985-10-14
DE3467462D1 (en) 1987-12-17
EP0158724A1 (en) 1985-10-23
JPS60232620A (en) 1985-11-19

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