EP0114831B1 - Multipole button switch - Google Patents

Multipole button switch Download PDF

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Publication number
EP0114831B1
EP0114831B1 EP83901353A EP83901353A EP0114831B1 EP 0114831 B1 EP0114831 B1 EP 0114831B1 EP 83901353 A EP83901353 A EP 83901353A EP 83901353 A EP83901353 A EP 83901353A EP 0114831 B1 EP0114831 B1 EP 0114831B1
Authority
EP
European Patent Office
Prior art keywords
contact
switch
cross bar
push member
spring
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
EP83901353A
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German (de)
French (fr)
Other versions
EP0114831A1 (en
Inventor
Albert Portmann
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.)
Johnson Electric Switzerland AG
Original Assignee
Johnson Electric Switzerland AG
Sodeco Saia 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 Johnson Electric Switzerland AG, Sodeco Saia AG filed Critical Johnson Electric Switzerland AG
Publication of EP0114831A1 publication Critical patent/EP0114831A1/en
Application granted granted Critical
Publication of EP0114831B1 publication Critical patent/EP0114831B1/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
    • H01H1/20—Bridging contacts
    • 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
    • H01H1/20—Bridging contacts
    • H01H1/2008—Facilitate mounting or replacing contact bridge and pressure spring on carrier

Definitions

  • the invention relates to a multi-pole push button switch according to the first part of claim 1.
  • Pushbutton switches are used in many ways to indicate a state, for example an end position of a machine table, the closed state of a door, a cover or similar elements.
  • a path section for actuating a switch plunger is used directly by the movement of the part to be monitored.
  • DE-C-952 915 shows such a single-pole switch.
  • a three-pole push button switch with side-by-side switching chambers in which a plunger acts on the three switching chambers via a crossbar. A breakage of a return spring in one of the switching chambers does not lead to a forced return by the return spring of the plunger. It is also known from US-A-31 42 732 how to combine any three commercially available thermally tripping circuit breakers into a three-pole circuit breaker. It is also known (DE-C-667361) to store at least three contact bridges in a common contact bridge carrier in a latching push button switch.
  • the push button switch as a security element, e.g. B. for barriers on punching machines against unauthorized manipulation during a work process or as a door contact, in which it must be ensured that there are no longer dangerous contact voltages when the door is open, there are additional safety regulations.
  • the latter require more than a reset element actuating the switch contact on the switch itself, which is not available in the known.
  • the invention has for its object to reduce the manufacturing costs and the overall height of a multi-pole push button switch while observing the safety requirements.
  • 1 means a lower housing part of a three-pole push-button switch with an actuating plunger 2, which is mounted in a longitudinally displaceable manner both in an upper housing part 3 and in a guideway 4 (FIG. 1) of the lower housing part 1.
  • three switching chambers 5, 6, 7 are arranged side by side, each of which has a contact bridge 8, 9, 10 and two associated contact fingers 11, 12 (FIG. 2), 13.
  • the contact bridges 8, 9, 10 can be actuated from the single actuating plunger 2.
  • a cross bar 14 is formed on the inside of the upper housing part 3.
  • the contact carriers 15, 16, 17 penetrate into the individual switching chambers 5 or 6 or 7 ' and each consist of two elastic fingers, of which only two fingers 16a; 16b of the contact carrier 16 can be seen in FIG. 2.
  • the ends of the elastic fingers of each contact carrier 15, 16, 17 are each formed into a stop 18, 19, 20 (FIG. 1), of which stops 19a and 19b of the contact carrier 16 are shown in FIG.
  • On each of the contact carriers 15, 16, 17 one of the contact bridges 8 or 9 or 10 is suspended so as to rock about the middle of the bridge, for which purpose each of the contact bridges 8, 9, 10 has a central opening 21.
  • the elastic fingers of the contact carriers 15, 16, 17 each penetrate one of the contact bridges 8, 9, 10 in its opening 21 and prevent the contact bridges 8, 9, 10 with the stops 18, 19, 20 from falling out.
  • actuating plunger 2 is shown in its rest position, that is, with the key switch open.
  • each switching chamber 5, 6, 7 has its own return spring 25, 26, 27. These are supported on the one hand on the crosspiece 14 and on the other hand on Bottom of the switching chambers 5, 6, 7, that is, on the lower housing part 1.
  • To guide the return springs 25, 26, three pins 28 are formed on the lower housing part 1 and protrude into one of the switching chambers 5, 6, 7.
  • the return springs 25, 26, 27 are attached to these pins 28.
  • the strength of the return springs 25, 26, 27 is dimensioned such that if one of the return springs 25, 26, 27 fails, the spring force of the remaining return springs 25, 26, 27 is sufficient to remove the contact bridges 8, 9, 10 of all switching chambers 5, 6, 7 to open and bring the actuating plunger 2 into its rest position.
  • the actuating plunger 2 must never get stuck even under one-sided loading. It therefore has an additional lateral guide at least in the direction in which the crosspiece 14 extends.
  • it consists of two parallel ribs 29, 30 (FIG. 1) which extend between the middle contact bridge 9 and the two outer contact bridges 8 and 10 and slide along the lateral guideways 4 of the middle switching chamber 6.
  • the actuating plunger 2 Due to the double guidance of the actuating plunger 2 on the one hand in the upper housing part 3 and on the other hand in the guideways 4, the actuating plunger 2 cannot jam even if one of the outer return springs 25 or 27 fails due to a broken spring and the remaining two work alone. The remaining return springs will still be able to bring the actuating plunger 2 into its rest position.
  • spring tabs 31 are formed on the lower housing part 1 and hold the pushbutton spring in a known manner in a corresponding recess in a sheet metal plate.
  • the structure described allows the economical production of fail-safe pushbutton switches which meet the required safety regulations and which, despite low space requirements, also have the air gaps and creepage distances required for use in low-voltage networks. They are also very easy to assemble and require no special tools.

Landscapes

  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)
  • Tumbler Switches (AREA)

Abstract

The adjacent switch housings (5, 6, 7) have each a movable contact bridge (8, 9, 10) each of which shunts a pair of contact fingers (11, 12, 13) in the closure position of the switch. Contact supports (15, 16, 17) are formed on a cross bar (14) of an actuation button (2) to support the contact bridges (8, 9, 10). Each housing (5, 6, 7) is provided with a return spring (25, 26, 27). The force of two springs only may bring the switch back to an opening position. In order to avoid a side jamming of the button (2), the latter is provided with two ribs (29, 30) which guide the button in a guiding path (4).

Description

Die Erfindung bezieht sich auf einen mehrpoligen Tastschalter nach dem ersten Teil des Anspruches 1.The invention relates to a multi-pole push button switch according to the first part of claim 1.

Tastschalter werden in vielfacher Weise verwendet zur Anzeige eines Zustandes, beispielsweise einer Endstellung eines Maschinentisches, des Schließzustandes einer Türe, eines Deckels oder ähnlicher Elemente. Dabei wird direkt von der Bewegung des zu überwachenden Teiles ein Wegstück zur Betätigung eines Schalter-Stößels ausgenutzt. Die DE-C-952 915 zeigt einen solchen einpoligen Schalter. Für Anwendungsfälle, bei denen mehr als ein elektrischer Stromkreis geschaltet werden muß, ist es außerdem nach der DE-C-971 322 bekannt, mehrere Schalter räumlich hintereinander anzuordnen. Dies ergibt vielfach unzulässig große Bauhöhen besonders dort, wo die Schalter nicht nur für Kleinspannung, sondern auch direkt am Niederspannungsnetz verwendet werden und die dazu vorgeschriebenen Abstände und Kriechwege zwischen spannungsführenden Teilen unter sich und gegen Masse eingehalten werden müssen.Pushbutton switches are used in many ways to indicate a state, for example an end position of a machine table, the closed state of a door, a cover or similar elements. A path section for actuating a switch plunger is used directly by the movement of the part to be monitored. DE-C-952 915 shows such a single-pole switch. For applications in which more than one electrical circuit has to be switched, it is also known from DE-C-971 322 to arrange a plurality of switches spatially one behind the other. This often results in impermissibly large overall heights, particularly where the switches are not only used for extra-low voltage, but also directly on the low-voltage network and the specified distances and creepage distances between live parts between themselves and against earth must be observed.

Aus der FR-A-11 69 029 ist ein dreipoliger Tastschalter mit nebeneinander angeordneten Schaltkammern bekannt, bei dem ein Stößel über einen Querbalken auf die drei Schaltkammern einwirkt. Ein Bruch einer Rückstellfeder in einer der Schaltkammern führt dabei nicht zur zwangsweisen Rückstellung durch die Rückstellfeder des Stößels. Bekannt ist aus der US-A-31 42 732 ferner, wie man drei beliebige handelsübliche thermisch auslösende Schutzschalter zu einem dreipoligen Schutzschalter vereinigen kann. Es ist außerdem bekannt (DE-C-667361), in einem rastenden Druckknopfschalter mindestens drei Kontaktbrücken in einem gemeinsamen Kontaktbrückenträger zu lagern.From FR-A-11 69 029 a three-pole push button switch with side-by-side switching chambers is known, in which a plunger acts on the three switching chambers via a crossbar. A breakage of a return spring in one of the switching chambers does not lead to a forced return by the return spring of the plunger. It is also known from US-A-31 42 732 how to combine any three commercially available thermally tripping circuit breakers into a three-pole circuit breaker. It is also known (DE-C-667361) to store at least three contact bridges in a common contact bridge carrier in a latching push button switch.

Bei der. Verwendung der Tastschalter als Sicherheitselement, z. B. für Abschrankungen an Stanzmaschinen gegen unbefugte Handgriffe während eines Arbeitsvorganges oder als Türkontakt, bei dem gewährleistet sein muß, daß bei offener Türe keine gefährlichen Berührungsspannungen mehr vorliegen, bestehen zusätzliche Sicherheitsvorschriften. Letztere erfordern am Schalter selbst mehr als ein den Schaltkontakt betätigendes Rückstellelement, was beim Bekannten nicht vorhanden ist.In the. Use of the push button switch as a security element, e.g. B. for barriers on punching machines against unauthorized manipulation during a work process or as a door contact, in which it must be ensured that there are no longer dangerous contact voltages when the door is open, there are additional safety regulations. The latter require more than a reset element actuating the switch contact on the switch itself, which is not available in the known.

Der Erfindung liegt die Aufgabe zugrunde, den Herstellaufwand und die Bauhöhe eines mehrpoligen Tastschalters unter Einhaltung der Sicherheitsanforderungen zu verringern.The invention has for its object to reduce the manufacturing costs and the overall height of a multi-pole push button switch while observing the safety requirements.

Diese Aufgabe wird erfindungsgemäß durch sie im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale gelöst.This object is achieved by them specified in the characterizing part of claim 1.

Nachfolgend wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung näher erläutert.An exemplary embodiment of the invention is explained in more detail below with reference to the drawing.

Es zeigt :

  • Figur 1 einen Längsriß eines Tastschalters im Schnitt längs den Linien A-A der Fig. 2 und
  • Figur 2 einen Seitenriß im Schnitt längs der Linie B-B der Fig. 1, wobei in der linken und rechten Hälfte der Fig. 2 zwei verschiedene Schaltstellungen dargestellt sind.
It shows :
  • Figure 1 is a longitudinal tear of a key switch in section along the lines AA of Fig. 2 and
  • Figure 2 is a side elevation in section along the line BB of Fig. 1, two different switching positions are shown in the left and right half of Fig. 2.

in den Figuren bedeutet 1 ein Gehäuse-Unterteil eines dreipoligen Tastschalters mit einem Betätigungsstößel 2, der sowohl in einem Gehäuse-Oberteil 3 als auch in einer Führungsbahn 4 (Fig. 1) des Gehäuse-Unterteils 1 längsverschiebbar gelagert ist. Im Gehäuse-Unterteil 1 sind nebeneinander drei Schaltkammern 5, 6, 7 angeordnet, von denen jede je eine Kontaktbrücke 8, 9, 10 und je zwei zugehörige Kontaktfinger 11, 12 (Fig. 2), 13 aufweist. Die Kontaktbrücken 8, 9, 10 sind vom einzigen Betätigungsstößel 2 aus betätigbar. Dazu ist an die Innenseite des Gehäuse-Oberteils 3. anschließend am Betätigungsstößel 2 ein Quersteg 14 angeformt, der drei vorstehende Kontaktträger 15, 16, 17 aufweist. Die Kontaktträger 15, 16, 17 dringen in die einzelnen Schaltkammern 5 bzw. 6 bzw. 7'ein und bestehen aus je zwei elastischen Fingern, von denen nur zwei Finger 16a; 16b des Kontaktträgers 16 in der Fig. 2 ersichtlich sind. Die Enden der elastischen Finger jedes Kontaktträgers 15, 16, 17 sind zu je einem Anschlag 18, 19, 20 (Fig. 1) ausgebildet, von denen in der Fig. 2 Anschläge 19a und 19b des Kontaktträgers 16 dargestellt sind. An jedem der Kontaktträger 15, 16, 17 ist eine der Kontaktbrücken 8 bzw. 9 bzw. 10 um deren Brückenmitte wippend aufgehängt, wozu jede der Kontaktbrücken 8, 9, 10 eine ' zentrale Öffnung 21 aufweist. Die elastischen Finger der Kontaktträger 15, 16, 17 durchdringen je eine der Kontaktbrücken 8, 9, 10 in deren Öffnung 21 und hindern die Kontaktbrücken 8, 9, 10 mit den Anschlägen 18, 19, 20 am Herausfallen.in the figures, 1 means a lower housing part of a three-pole push-button switch with an actuating plunger 2, which is mounted in a longitudinally displaceable manner both in an upper housing part 3 and in a guideway 4 (FIG. 1) of the lower housing part 1. In the lower housing part 1, three switching chambers 5, 6, 7 are arranged side by side, each of which has a contact bridge 8, 9, 10 and two associated contact fingers 11, 12 (FIG. 2), 13. The contact bridges 8, 9, 10 can be actuated from the single actuating plunger 2. For this purpose, a cross bar 14 is formed on the inside of the upper housing part 3. The contact carriers 15, 16, 17 penetrate into the individual switching chambers 5 or 6 or 7 ' and each consist of two elastic fingers, of which only two fingers 16a; 16b of the contact carrier 16 can be seen in FIG. 2. The ends of the elastic fingers of each contact carrier 15, 16, 17 are each formed into a stop 18, 19, 20 (FIG. 1), of which stops 19a and 19b of the contact carrier 16 are shown in FIG. On each of the contact carriers 15, 16, 17 one of the contact bridges 8 or 9 or 10 is suspended so as to rock about the middle of the bridge, for which purpose each of the contact bridges 8, 9, 10 has a central opening 21. The elastic fingers of the contact carriers 15, 16, 17 each penetrate one of the contact bridges 8, 9, 10 in its opening 21 and prevent the contact bridges 8, 9, 10 with the stops 18, 19, 20 from falling out.

Mit je einer Kontaktdruckfeder 22, 23, 24, die sich einerseits am Quersteg 14 und andererseits an je einer der Kontaktbrücken 8, 9, 10 abstützt, werden die Kontaktbrücken 8, 9, 10 in der Ruhestellung des Betätigungsstößels 2 gegen deren Anschläge 18, 19, 20 gedrückt und damit in einer bestimmten Lage gehalten.With a contact pressure spring 22, 23, 24, which is supported on the one hand on the crosspiece 14 and on the other hand on one of the contact bridges 8, 9, 10, the contact bridges 8, 9, 10 are in the rest position of the actuating plunger 2 against its stops 18, 19 , 20 pressed and thus held in a certain position.

In der Fig. 1 ist der Betätigungsstößel 2 in seiner Ruhestellung, also bei geöffnetem Tastschalter, dargestellt.In Fig. 1, the actuating plunger 2 is shown in its rest position, that is, with the key switch open.

Auf der linken Seite der Figur 2 ist der Betätigungsstößel 2 so weit hineingedrückt, daß die Kontaktbrücken 8, 9, 10 die Kontaktfinger 11, 12, 13 gerade berühren. Der Tastschalter ist damit elektrisch geschlossen. Zum Ausgleich von Wegtoleranzen eines Betätigungsgliedes steht noch ein Nachlaufweg zur Verfügung. Die rechte Seite der Fig. 2 zeigt die Stellung des Betätigungsstößels 2 am Ende des möglichen Nachlaufweges. Der entstehende Kontaktdruck ist durch die Kontaktdruckfedern 22, 23, 24 gegeben.On the left side of FIG. 2, the actuating plunger 2 is pressed in so far that the contact bridges 8, 9, 10 just touch the contact fingers 11, 12, 13. The push button switch is now electrically closed. An overtravel is still available to compensate for travel tolerances of an actuator. The right side of FIG. 2 shows the position of the actuating plunger 2 at the end of the possible overtravel. The resulting contact pressure is given by the contact pressure springs 22, 23, 24.

Zur Zurückstellung des Betätigungsstößels 2 weist jede Schaltkammer 5, 6, 7 eine eigene Rückstellfeder 25, 26, 27 auf. Diese stützen sich einerseits am Quersteg 14 und andererseits am Boden der Schaltkammern 5, 6, 7, das heißt am Gehäuse-Unterteil 1, ab. Zur Führung der Rückstellfedern 25, 26, 27 dienen drei am Gehäuse-Unterteil 1 angeformte, in je eine der Schaltkammern 5, 6, 7 vorstehende Zapfen 28. Die Rückstellfedern 25, 26, 27 sind auf diese Zapfen 28 aufgesteckt. Die Stärke der Rückstellfedern 25, 26, 27 ist so bemessen, daß beim Ausfall einer der Rückstellfedern 25, 26, 27 die Federkraft der verbleibenden Rückstellfedern 25, 26, 27 genügt, um beim Fehlen einer Betätigungskraft am Betätigungsstößel 2 die Kontaktbrücken 8, 9, 10 aller Schaltkammern 5, 6, 7 zu öffnen und den Betätigungsstößel 2 in seine Ruhestellung zu bringen. Damit dies gewährleistet ist, darf der Betätigungsstößel 2 auch bei einseitiger Belastung nie zum Verklemmen kommen. Er weist daher wenigstens in der Richtung, in der sich der Quersteg 14 erstreckt, eine zusätzliche seitliche Führung auf. Sie besteht im beschriebenen Beispiel aus zwei parallelen Rippen 29, 30 (Fig. 1), die sich zwischen der mittleren Kontaktbrücke 9 und den beiden äußeren Kontaktbrücken 8 und 10 erstrecken und an den seitlichen Führungsbahnen 4 der mittleren Schaltkammer 6 entlang gleiten.To reset the actuating plunger 2, each switching chamber 5, 6, 7 has its own return spring 25, 26, 27. These are supported on the one hand on the crosspiece 14 and on the other hand on Bottom of the switching chambers 5, 6, 7, that is, on the lower housing part 1. To guide the return springs 25, 26, three pins 28 are formed on the lower housing part 1 and protrude into one of the switching chambers 5, 6, 7. The return springs 25, 26, 27 are attached to these pins 28. The strength of the return springs 25, 26, 27 is dimensioned such that if one of the return springs 25, 26, 27 fails, the spring force of the remaining return springs 25, 26, 27 is sufficient to remove the contact bridges 8, 9, 10 of all switching chambers 5, 6, 7 to open and bring the actuating plunger 2 into its rest position. In order to ensure this, the actuating plunger 2 must never get stuck even under one-sided loading. It therefore has an additional lateral guide at least in the direction in which the crosspiece 14 extends. In the example described, it consists of two parallel ribs 29, 30 (FIG. 1) which extend between the middle contact bridge 9 and the two outer contact bridges 8 and 10 and slide along the lateral guideways 4 of the middle switching chamber 6.

Durch die doppelte Führung des Betätigungsstößels 2 einerseits im Gehäuse-Oberteil 3 und andererseits in den Führungsbahnen 4 kann der Betätigungsstößel 2 auch dann nicht verklemmen, wenn infolge Federbruches eine der äußeren Rückstellfedern 25 oder 27 ausfällt und die restlichen zwei allein arbeiten. Die verbleibenden Rückstellfedern werden den Betätigungsstößel 2 trotzdem in seine Ruhestellung bringen können.Due to the double guidance of the actuating plunger 2 on the one hand in the upper housing part 3 and on the other hand in the guideways 4, the actuating plunger 2 cannot jam even if one of the outer return springs 25 or 27 fails due to a broken spring and the remaining two work alone. The remaining return springs will still be able to bring the actuating plunger 2 into its rest position.

Für den Einbau des Tastschalters sind am Gehäuse-Unterteil 1 angeformte Federlappen 31 (Fig. 2) vorhanden, welche den Tastschalter in bekannter Weise in einer entsprechenden Ausnehmung einer Blechtafel federnd festhalten.For the installation of the pushbutton switch, spring tabs 31 (FIG. 2) are formed on the lower housing part 1 and hold the pushbutton spring in a known manner in a corresponding recess in a sheet metal plate.

Der beschriebene Aufbau erlaubt die wirtschaftliche Herstellung ausschaltsicherer Tastschalter, welche den geforderten Sicherheitsbestimmungen entsprechen und die trotz geringer Raumbeanspruchung auch die für die Ver wendung in Niederspannungsnetzen nötigen Luftspalte und Kriechstrecken aufweisen. Auch ist deren Montage denkbar einfach und erfordert keine besonderen Werkzeuge.The structure described allows the economical production of fail-safe pushbutton switches which meet the required safety regulations and which, despite low space requirements, also have the air gaps and creepage distances required for use in low-voltage networks. They are also very easy to assemble and require no special tools.

Claims (3)

1. A multipole pushbutton switch comprising an actuating push member (2) which is longitudinally displaceable against the force of a return spring, with a cross bar (14) which acts on at least two juxtaposed spring-biased contact bridges (8, 9, 10) for closing together or lifting off stationary contact fingers which are disposed in switch chambers (5, 6, 7), wherein the spring bias of the contact bridges produces the necessary contact pressure and each switch chamber has its own return spring, characterised in that a cross bar (14) is formed on the actuating push member (2) adjoining the inward side of the top portion (3) of the housing, which cross bar has projecting contact carriers (15, 16, 17) which extend into the individual switch chambers (5, 6, 7), a respective one of the contact bridges (8, 9, 10) being suspended on each of the contact carriers, for rocking movement about the centre of the bridge, and that the return springs (25, 26, 27) which at the same time provide the return force for the actuating push member (2) bear against the cross bar (14), the strength thereof being such that in the event of failure of one of the return springs (25, 26, 27) the spring force of the remaining return springs (25, 26, 27) is sufficient to open the contact bridges (8, 9, 10) of all switch chambers (5, 6, 7) and to bring the actuating push member (2) into its rest position.
2. A pushbutton switch according to claim 1 characterised in that three switch chambers (5, 6, 7) are arranged one beside the other.
3. A pushbutton switch according to claim 1 characterised in that the actuating push member (2) has an additional lateral guide (4, 29, 30) at least in the direction in which the cross bar (14) extends.
EP83901353A 1982-07-22 1983-05-05 Multipole button switch Expired EP0114831B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4476/82 1982-07-22
CH4476/82A CH656484A5 (en) 1982-07-22 1982-07-22 MULTIPOLE KEY SWITCH.

Publications (2)

Publication Number Publication Date
EP0114831A1 EP0114831A1 (en) 1984-08-08
EP0114831B1 true EP0114831B1 (en) 1986-08-20

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Application Number Title Priority Date Filing Date
EP83901353A Expired EP0114831B1 (en) 1982-07-22 1983-05-05 Multipole button switch

Country Status (8)

Country Link
US (1) US4544815A (en)
EP (1) EP0114831B1 (en)
JP (1) JPS59501334A (en)
CH (1) CH656484A5 (en)
DE (1) DE3232338C2 (en)
FR (1) FR2530863B1 (en)
IT (1) IT1163821B (en)
WO (1) WO1984000639A1 (en)

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Also Published As

Publication number Publication date
FR2530863A1 (en) 1984-01-27
IT8322149A0 (en) 1983-07-20
JPH0430126B2 (en) 1992-05-20
IT8322149A1 (en) 1985-01-20
WO1984000639A1 (en) 1984-02-16
CH656484A5 (en) 1986-06-30
DE3232338A1 (en) 1984-02-02
DE3232338C2 (en) 1984-05-17
EP0114831A1 (en) 1984-08-08
US4544815A (en) 1985-10-01
JPS59501334A (en) 1984-07-26
IT1163821B (en) 1987-04-08
FR2530863B1 (en) 1986-09-19

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