EP0080028A1 - Push button switch - Google Patents

Push button switch Download PDF

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Publication number
EP0080028A1
EP0080028A1 EP82107616A EP82107616A EP0080028A1 EP 0080028 A1 EP0080028 A1 EP 0080028A1 EP 82107616 A EP82107616 A EP 82107616A EP 82107616 A EP82107616 A EP 82107616A EP 0080028 A1 EP0080028 A1 EP 0080028A1
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EP
European Patent Office
Prior art keywords
actuating piston
pressure switch
housing
switch according
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.)
Granted
Application number
EP82107616A
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German (de)
French (fr)
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EP0080028B1 (en
Inventor
Wolfgang Dipl.-Ing. Priesemuth
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Individual
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Individual
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Priority to AT82107616T priority Critical patent/ATE16656T1/en
Publication of EP0080028A1 publication Critical patent/EP0080028A1/en
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Publication of EP0080028B1 publication Critical patent/EP0080028B1/en
Expired legal-status Critical Current

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    • 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
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/56—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon the next application of operating force

Definitions

  • the invention relates to a pressure switch with stationary switching contacts arranged in the bottom of the switch housing, an actuating piston provided with an external pushbutton and carrying the movable switching contacts, axially movably guided against a return spring in the switch housing, and a latching device which acts between the actuating piston and the switch housing and consists of a link guide and guide pin holds the actuating piston after a first actuation in a first switching position and releases it again in a subsequent actuation to return to the rest position.
  • the two first-mentioned publications relate to pressure switches with an eccentrically arranged latching device which easily jams.
  • the third-mentioned publication works with a slide guide arranged in the longitudinal plane of the switch, which, although essentially centering the actuating forces on the center of the switch, requires a pivoting lever as an additional transmission element, which also has to be moved out of the axial center of the switch.
  • the main disadvantage is that the locking device is exposed inside the switch housing, so that interference can also occur there when dirt enters the setting.
  • the object of the present invention is to provide an improved pressure switch of the type mentioned in the introduction, in which the actuating forces acting on the latching device act exactly axially and can be arranged completely encapsulated in the slotted guide and guide pin in a very compact design.
  • the actuating piston contains an inner cylindrical recess in which, with a small distance from one another, circular ring surfaces have radially directed teeth of different tooth heights, which together form a circumferential zigzag-shaped Form a slide guide, and that a pin which engages in the cylindrical recess and is arranged centrally in the switch housing carries a diametrically extending, rotatably but axially immovably mounted guide pin, the ends of which engage in the link guide track.
  • the pressure switch shown in the drawings consists of a prismatic switch housing 1 of essentially rectangular cross section.
  • the housing 1 is closed at the bottom by a housing base 2, so that the entire housing is given a cup-shaped shape.
  • a housing base 2 At two or four points of the housing resilient snap-in catches 3 are provided on the outside, which give the possibility of inserting the pressure switch into a corresponding dashboard wall without the need for any screw connections.
  • the knife-shaped connections 4 provided for a corresponding socket protrude. These connections 4 are formed in one piece with the fixed contacts 5 provided in the interior of the housing 1.
  • the (in the exemplary embodiment) eight contacts 5 are in the switch housing in groups of four on opposite housing walls.
  • the contacts 5 with the connections 4, as can be seen from a comparison of FIGS. 1 and 3, are bent at 6 in the region of the housing base 2, which promotes their safe storage.
  • the contacts 5 are given a further hold by upwardly projecting plastic parts which are arranged on the housing base 2 and penetrate the longitudinal slots 8 provided in the contacts 5 on the side facing the movable contacts. These slots 8 have a length that corresponds approximately to the switch stroke.
  • a guide pin 7 for the socket On the underside of the housing base 2 there is a guide pin 7 for the socket and possibly also a recess into which switching elements, such as resistors and the like, can be inserted.
  • the inner cross section of the switch housing 1 is rectangular with rounded corners.
  • an actuating piston 9 is inserted into the switch housing 1, which is firmly connected at 28 to a rectangular tube 10 which carries a pushbutton 12 at the outer end.
  • a snap-in connection 11 between the tube 10 and the pushbutton 12 which gives the possibility of exchanging the pushbutton 12 or removing it for changing the signal lamp 25.
  • the box-shaped walls of the actuating piston tube 10 are recessed on the side faces at 31, so that the tube 10 is guided together with the actuating piston 9 only in the rounded corner parts 30.
  • the actuating piston 9, as shown in FIG. 5, is formed in two parts.
  • the upper and lower parts 13 and 14 to be firmly connected during assembly delimit the inner cylindrical recess 40, in which the actual locking device of the pressure switch is accommodated in a completely encapsulated manner.
  • In the recess 40 protrudes through a central opening 20 of the lower actuating piston part 14 in the bottom 2 of the switch housing 1 bolt 21, which also serves as a guide for a helical compression spring 22, which is on the one hand on the housing base 2 and on the other hand on the bottom of the actuating piston part 14 all around supports the bolt 21.
  • the spring 22 is the actual return spring for the pressure switch.
  • the bolt 21 In the interior of the recess 40, the bolt 21 carries a diametrically extending guide pin 23 which is axially immovable but rotatably mounted at the end of the bolt 21.
  • This guide pin 23 cooperates with a guide track 19, which is generated as follows.
  • the toothed circular ring surface 15 shown in FIG. 6 is located on the inside of the lower part 14 of the actuating piston 9 facing the recess 40.
  • the inside of the upper part 13 of the actuating piston 9 carries a toothed circular ring surface 16.
  • the teeth of the lower circular ring surface 15 have pairs differently shaped teeth, whereby - as the development according to FIG. 8 shows - the tooth bases 17a lower lie as the tooth bases 17b.
  • the pressure switch is in the switched-off state when the guide pin 23 lies in the lower tooth base 17a. If the guide pin 23 is located in the higher tooth base 17b, the switch is in the switch-on position.
  • the upper and lower annular surfaces 15 and 16 have four toothed Kreisringsegme t e 4 1, 42, so that 23 times the turn-on and twice the switched-off position is reached at a complete revolution of the guide pin.
  • the toothing on the upper part 13 of the actuating piston is designed such that it carries teeth 43a and 43b, which are of different heights and differ, in accordance with the higher and lower tooth bases of the lower part 14 high tooth bases 17a and 17b on the lower part 14 are substantially opposite.
  • the movable switching contacts 6 are mounted on two opposite longitudinal sides of the actuating piston 9 and fastened there at 28.
  • the free ends of the movable contacts 6 carry at their free end grinding brackets 7 for acting on the fixed contacts 5 arranged in a coaxial orientation.
  • a conductive connection results between the depressed and also depressed pushbutton 12 firm and mobile contact.
  • the connecting webs optionally provided between the movable contacts 26 can ensure that two or more of the connections 4 are connected to one another or not.
  • these webs 29 can be severed at any point so that the switch can serve a plurality of independent circuits.
  • the upper part 13 of the actuating piston 9 carries the socket 24 for a signal lamp 25, with which the switching state of the pressure switch can also be signaled to the outside via the aforementioned contact arrangement.
  • the push button 12 is of course provided with a corresponding opening, a translucent central section or the like.

Abstract

1. A push-button switch having stationary switch contacts (5) disposed in the bottom (2) of the switch housing (1), an actuating piston (9) which is provided with an external push-button (12), carries the movable switch contacts (26) and is guided for axial movement in the switch housing (1) against a restoring spring, and a detent device which acts between actuating piston (9) and switch housing (1) and consists of a coulisse guide and guide pin (23) and which holds the actuating piston (9) in a first switch position after a first actuation and releases it again for return to the position of rest on a following actuation, characterised in that the actuating piston (9) contains an inner cylindrical recess (40) in which circular surfaces (15, 16) situated opposite one another with slight spacing, comprise radially directed teeth (43, 44) of different heights which together form an encircling zig-zag-shaped coulisse guideway (19), and that a pin (21) which engages in the cylindrical recess (40) and is disposed centrally in the switch housing (1) carries the guide pin (23) which extends diametrically and is mounted for rotation but held against axial displacement and the ends of which engage in the coulisse guideway (19).

Description

Die Erfindung betrifft einen Druckschalter mit im Boden des Schaltergehäuses angeordneten stationären Schaltkontakten, einem mit äußerer Drucktaste versehenen, die beweglichen Schaltkontakte tragenden, entgegen einer Rückstellfeder im Schaltergehäuse axial beweglich geführten Betätigungskolben und einer zwischen Betätigungskolben und Schaltergehäuse wirkenden, aus Kulissenführung und Führungsstift bestehenden Rasteinrichtung, welche den Betätigungskolben nach einer ersten Betätigung in einer ersten Schaltstellung hält und sie bei einer nachfolgenden Betätigung wieder zur Rückkehr in die Ruhestellung freigibt.The invention relates to a pressure switch with stationary switching contacts arranged in the bottom of the switch housing, an actuating piston provided with an external pushbutton and carrying the movable switching contacts, axially movably guided against a return spring in the switch housing, and a latching device which acts between the actuating piston and the switch housing and consists of a link guide and guide pin holds the actuating piston after a first actuation in a first switching position and releases it again in a subsequent actuation to return to the rest position.

Solche Druckschalter sind bekannt aus den DE-OS 23 08 771, 24 17 330 und 26 06 551.Such pressure switches are known from DE-OS 23 08 771, 24 17 330 and 26 06 551.

Die beiden erstgenannten Druckschriften betreffen Druckschalter mit einer exzentrisch angeordneten Rasteinrichtung, die leicht zu Verklemmungen kommt. Die drittgenannte Druckschrift arbeitet mit einer in der Längsebene des Schalters angeordneten Kulissenführung, die zwar die Betätigungskräfte im wesentlichen auf die Mitte des Schalters zentriert, aber als zusätzliches Übertragungsglied einen Schwenkhebel benötigt, der auch wieder aus der axialen Mitte des Schalters herausbewegt werden muß. Nachteilig ist vor allem, daß die Rasteinrichtung innerhalb des Schaltergehäuses freiliegt, so daß es auch dort bei Eindringen von Schmutz in die Kulisse zu Störungen kommen kann.The two first-mentioned publications relate to pressure switches with an eccentrically arranged latching device which easily jams. The third-mentioned publication works with a slide guide arranged in the longitudinal plane of the switch, which, although essentially centering the actuating forces on the center of the switch, requires a pivoting lever as an additional transmission element, which also has to be moved out of the axial center of the switch. The main disadvantage is that the locking device is exposed inside the switch housing, so that interference can also occur there when dirt enters the setting.

Aufgabe der vorliegenden Erfindung ist die Schaffung eines verbesserten Druckschalters der einleitend genannten Art, bei dem die auf die Rasteinrichtung wirkenden Betätigungskräfte exakt axial angreifen und bei dem Kulissenführung und Führungsstift in sehr gedrungener Bauweise vollständig gekapselt angeordnet werden können.The object of the present invention is to provide an improved pressure switch of the type mentioned in the introduction, in which the actuating forces acting on the latching device act exactly axially and can be arranged completely encapsulated in the slotted guide and guide pin in a very compact design.

Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, einen Druckschalter der einleitend genannten Art so auszubilden, daß der Betätigungskolben eine innere zylindrische Ausnehmung enthält, in der mit geringem Abstand einander gegenüberliegende Kreisringflächen radial gerichtete Zähne unterschiedlicher Zahnhöhe aufweisen, die zusammen eine ringsumlaufende zick-zack-förmige Kulissenführungsbahn bilden, und daß ein in die zylindrische Ausnehmung eingreifender, zentrisch im Schaltergehäuse angeordneter Bolzen einen sich diametral erstreckenden, drehbar aber axial unverschiebbar gelagerten Führungsstift trägt, dessen Enden in die Kulissenführungsbahn eingreifen.To achieve this object, it is proposed according to the invention to design a pressure switch of the type mentioned in the introduction so that the actuating piston contains an inner cylindrical recess in which, with a small distance from one another, circular ring surfaces have radially directed teeth of different tooth heights, which together form a circumferential zigzag-shaped Form a slide guide, and that a pin which engages in the cylindrical recess and is arranged centrally in the switch housing carries a diametrically extending, rotatably but axially immovably mounted guide pin, the ends of which engage in the link guide track.

Weitere Einzelheiten und Merkmale der Erfindung ergeben sich aus den Unteransprüchen.Further details and features of the invention emerge from the subclaims.

Nachfolgend wird anhand der Zeichnungen eine bevorzugte Ausführungsform eines erfindungsgemäßen Druckschalters näher erläutert. Zu den Zeichnungen zeigen:

  • Fig. 1 einen vertikalen Längsschnitt durch den erfindungsgemäßen Druckschalter im ausgeschalteten Zustand,
  • Fig. 2 eine Draufsicht auf den Druckschalter der Fig.1 bei abgenommener Drucktaste,
  • Fig. 3 eine Unteransicht zu Fig. 1,
  • Fig. 4 einen vertikalen Längsschnitt durch den Druckschalter der Fig. 1 in einer um 90° gedrehten Ebene,
  • Fig. 5 eine vergrößerte Einzelheit zu Fig. 4,
  • Fig. 6 eine Draufsicht auf den unteren gezahnten Kulissenring gemäß der Schnittlinie VI-VI der Fig. 5,
  • Fig. 7 eine Draufsicht auf den oberen gezahnten Kulissenring gemäß der Schnittlinie VII-VII der Fig. 5 und
  • Fig. 8 eine von der Seite gesehene Abwicklung des Umfanges der Kulissenführung mit in Ausschaltstellung stehendem Führungsstift.
A preferred embodiment of a pressure switch according to the invention is explained in more detail below with reference to the drawings. To the drawings show:
  • 1 is a vertical longitudinal section through the pressure switch according to the invention in the switched-off state,
  • 2 is a plan view of the pressure switch of Figure 1 with the push button removed,
  • 3 is a bottom view of FIG. 1,
  • 4 shows a vertical longitudinal section through the pressure switch of FIG. 1 in a plane rotated by 90 °,
  • 5 is an enlarged detail of FIG. 4,
  • 6 is a plan view of the lower toothed link ring according to the section line VI-VI of FIG. 5,
  • Fig. 7 is a plan view of the upper toothed backdrop ring according to the section line VII-VII of Fig. 5 and
  • Fig. 8 is a seen from the side processing the scope of the link guide with the guide pin in the off position.

Der in den Zeichnungen dargestellt Druckschalter besteht aus einem prismatischen Schaltergehäuse 1 von im wesentlichen rechteckförmigem Querschnitt. Das Gehäuse 1 ist an der Unterseite durch einen Gehäuseboden 2 verschlossen, so daß das komplette Gehäuse eine becherförmige Gestalt erhält. An zwei oder vier Stellen des Gehäuses sind an der Außenseite federnde Einschnapprasten 3 vorgesehen, die die Möglichkeit geben, den Druckschalter in eine entsprechende Armaturenwand einzusetzen, ohne daß es irgendwelcher Schraubverbindungen bedarf.The pressure switch shown in the drawings consists of a prismatic switch housing 1 of essentially rectangular cross section. The housing 1 is closed at the bottom by a housing base 2, so that the entire housing is given a cup-shaped shape. At two or four points of the housing resilient snap-in catches 3 are provided on the outside, which give the possibility of inserting the pressure switch into a corresponding dashboard wall without the need for any screw connections.

Am Boden 2 des Schaltergehäuses ragen die für eine entsurechende Steckdose vorgesehenen messerförmigen Anschlüsse 4 hervor. Diese Anschlüsse 4 sind einteilig mit den im Inneren des Gehäuses 1 vorgesehenen festen Kontakten 5 ausgebildet. Die (im Ausführungsbeispiel)acht Kontakte 5 liegen im Schaltergehäuse in Vierergruppen an gegenüberliegenden Gehäusewandungen. Die Kontakte 5 mit den Anschlüssen 4 sind, wie sich aus einem Vergleich der Fig. 1 und 3 ergibt, bei 6 im Bereich des Gehäusebodens 2 abgekröpft, wodurch ihre sichere Lagerung begünstigt wird. Einen weiteren Halt erhalten die Kontakte 5 durch an den Gehäuseboden 2 angeordnete nach oben ragende Kunststoffteile, die in den Kontakten 5 vorgesehene Längsschlitze 8 auf der den beweglichen Kontakten zugewandten Seite durchdringen. Diese Schlitze 8 haben eine Länge, die etwa dem Schalterhub entspricht. Dadurch, daß die Längsschlitze 8 durchdringende Kunststoffmasse im oberen oder im unteren Bereich abgearbeitet oder nicht mitangespritzt wird, läßt sich erreichen, daß die nachfolgend noch zu beschreibenden beweglichen Kontakte entweder bei gedrücktem oder bei nicht gedrücktem Druckschalter eine leitende Verbindung herstellen oder nicht.On the bottom 2 of the switch housing, the knife-shaped connections 4 provided for a corresponding socket protrude. These connections 4 are formed in one piece with the fixed contacts 5 provided in the interior of the housing 1. The (in the exemplary embodiment) eight contacts 5 are in the switch housing in groups of four on opposite housing walls. The contacts 5 with the connections 4, as can be seen from a comparison of FIGS. 1 and 3, are bent at 6 in the region of the housing base 2, which promotes their safe storage. The contacts 5 are given a further hold by upwardly projecting plastic parts which are arranged on the housing base 2 and penetrate the longitudinal slots 8 provided in the contacts 5 on the side facing the movable contacts. These slots 8 have a length that corresponds approximately to the switch stroke. The fact that the plastic material penetrating the longitudinal slots 8 is processed in the upper or in the lower region or is not molded on at the same time, can achieve that those to be described below Moving contacts either make a conductive connection when the pressure switch is pressed or not pressed, or not.

An der Unterseite des Gehäusebodens 2 befindet sich ein Führungszapfen 7 für die Steckdose und gegebenenfalls auch noch eine Ausnehmung,in die Schaltelemente, wie beispielsweise Widerstände und dergleichen eingelegt werden können.On the underside of the housing base 2 there is a guide pin 7 for the socket and possibly also a recess into which switching elements, such as resistors and the like, can be inserted.

Wie die Fig. 2 erkennen läßt, ist der Innenquerschnitt des Schaltergehäuses 1 rechteckförmig mit abgerundeten Ecken. Entsprechend dieser Konfiguration ist in das Schaltergehäuse 1 ein Betätigungskolben 9 eingesetzt, welcher bei 28 fest mit einem Rechteckrohr 10 verbunden ist, das am Außenende eine Drucktaste 12 trägt. Zwischen dem Rohr 10 und der Drucktaste 12 befindet sich eine Einschnappverbindung 11, die die Möglichkeit gibt, die Drucktaste 12 auszutauschen oder zum Wechsel der Signallampe 25 abzunehmen.As can be seen in FIG. 2, the inner cross section of the switch housing 1 is rectangular with rounded corners. According to this configuration, an actuating piston 9 is inserted into the switch housing 1, which is firmly connected at 28 to a rectangular tube 10 which carries a pushbutton 12 at the outer end. There is a snap-in connection 11 between the tube 10 and the pushbutton 12, which gives the possibility of exchanging the pushbutton 12 or removing it for changing the signal lamp 25.

Damit der Betätigungskolben 9 in axialer Richtung gut geführt und leicht beweglich ist, sind die kastenförmigen Wände des Betätigungskolben-Rohres 10 an den Seitenflächen bei 31 ausgespart, so daß das Rohr 10 zusammen mit dem Betätigungskolben 9 nur in den abgerundeten Eckteilen 30 geführt ist.So that the actuating piston 9 is well guided in the axial direction and easily movable, the box-shaped walls of the actuating piston tube 10 are recessed on the side faces at 31, so that the tube 10 is guided together with the actuating piston 9 only in the rounded corner parts 30.

Der Betätigungskolben 9 ist, wie Fig. 5 zeigt, zweiteilig ausgebildet. Die bei der Montage fest zu verbindenden Ober- und Unterteile 13 und 14 begrenzen die innere zylindrische Ausnehmung 40, in der vollständig gekapselt die eigentliche Rastvorrichtung des Druckschalters untergebracht ist. In die Ausnehmung 40 ragt über eine Mittelöffnung 20 des unteren Betätigungskolbenteiles 14 ein im Boden 2 des Schaltergehäuses 1 gelagerter Bolzen 21 hinein, der zugleich als Führung für eine Schraubendruckfeder 22 dient, die sich einerseits am Gehäuseboden 2 und andererseits an der Unterseite des Betätigungskolbenteiles 14 ringsum den Bolzen 21 abstützt. Die Feder 22 ist die eigentliche Riickstellfeder für den Druckschalter.The actuating piston 9, as shown in FIG. 5, is formed in two parts. The upper and lower parts 13 and 14 to be firmly connected during assembly delimit the inner cylindrical recess 40, in which the actual locking device of the pressure switch is accommodated in a completely encapsulated manner. In the recess 40 protrudes through a central opening 20 of the lower actuating piston part 14 in the bottom 2 of the switch housing 1 bolt 21, which also serves as a guide for a helical compression spring 22, which is on the one hand on the housing base 2 and on the other hand on the bottom of the actuating piston part 14 all around supports the bolt 21. The spring 22 is the actual return spring for the pressure switch.

Im Inneren der Ausnehmung 40 trägt der Bolzen 21 einen sich diametral erstreckenden Führungsstift 23, der am Ende des Bolzens 21 axial unverschieblich aber drehbar gelagert ist. Dieser Führungsstift 23 arbeitet mit einer Kulissenführungsbahn 19 zusammen, die wie folgt erzeugt ist.In the interior of the recess 40, the bolt 21 carries a diametrically extending guide pin 23 which is axially immovable but rotatably mounted at the end of the bolt 21. This guide pin 23 cooperates with a guide track 19, which is generated as follows.

An der der Ausnehmung 40 zugewandten Innenseite des Unterteiles 14 des Betätigungskolbens 9 befindet sich die in Fig. 6 dargestellte gezahnte Kreisringfläche 15. In entsprechender Weise trägt die Innenseite des Oberteils 13 des Betätigungskolbens 9 eine gezahnte Kreisringfläche 16. Die Zähne der unteren Kreisringfläche 15 haben paarweise unterschiedlich ausgestaltete Zähne, wobei - wie die Abwicklung gemäß Fig. 8 zeigt - die Zahngründe 17a tiefer liegen als die Zahngründe 17b. Wie aus Fig. 8 erkennbar, befindet sich der Druckschalter im Ausschaltzustand, wenn der Führungsstift 23 im tiefer gelegenen Zahngrund 17a liegt. Befindet sich der Führungsstift 23 in dem höher gelegenen Zahngrund 17b, befindet sich der Schalter in der Einschaltstellung.The toothed circular ring surface 15 shown in FIG. 6 is located on the inside of the lower part 14 of the actuating piston 9 facing the recess 40. In a corresponding manner, the inside of the upper part 13 of the actuating piston 9 carries a toothed circular ring surface 16. The teeth of the lower circular ring surface 15 have pairs differently shaped teeth, whereby - as the development according to FIG. 8 shows - the tooth bases 17a lower lie as the tooth bases 17b. As can be seen from FIG. 8, the pressure switch is in the switched-off state when the guide pin 23 lies in the lower tooth base 17a. If the guide pin 23 is located in the higher tooth base 17b, the switch is in the switch-on position.

Wie aus den Fig. 6 bis 8 erkennbar ist, haben die oberen und unteren Kreisringflächen 15 und 16 vier gezahnten Kreisringsegme te 41,42, so daß bei einer vollständigen Umdrehung des Führungsstiftes 23 zweimal die Einschalt- und zweimal die Ausschaltstellung erreicht wird.How to 8 is seen from Fig. 6, the upper and lower annular surfaces 15 and 16 have four toothed Kreisringsegme t e 4 1, 42, so that 23 times the turn-on and twice the switched-off position is reached at a complete revolution of the guide pin.

Damit der Führungsstift 23 beim Drücken der Drucktaste 12 eine Bewegung in Umfangsrichtung aufnimmt, ist die Verzahnung am Oberteil 13 des Betätigungskolbens so ausgebildet, daß diese entsprechend den höheren und niedrigeren Zahngründen vom Unterteil 14 Zähne 43a und 43b trägt, die unterschiedlich hoch sind und den unterschiedlichen hohen Zahngründen 17a und 17b am Unterteil 14 im wesentlichen gegenüberliegen.So that the guide pin 23 receives a movement in the circumferential direction when the pushbutton 12 is pressed, the toothing on the upper part 13 of the actuating piston is designed such that it carries teeth 43a and 43b, which are of different heights and differ, in accordance with the higher and lower tooth bases of the lower part 14 high tooth bases 17a and 17b on the lower part 14 are substantially opposite.

Wird ausgehend von der Ausschaltstellung gemäß Fig. 8 der Betätigungskolben bei axial unbeweglich gehaltenem Führungsstift 23 gedrückt, wandert der letztere in der zick-zack-förmigen Kulissenführungsbahn 19 bezüglich der Fig. 8 nach rechts, um dann nach Überschreiten der Zahnspitze 24 nach Loslassen der Drucktaste weiter nach rechts zu wandern, bis er den Zahngrund 17b erreicht und dort verbleibt, um die Einschaltstellung zu fixieren.If the actuating piston is pressed starting from the switch-off position according to FIG. 8 while the guide pin 23 is held axially immovably, the latter moves in the zigzag-shaped link guide track 19 to the right with respect to FIG. 8, and then after the tooth tip 24 has been exceeded after the push button has been released continue to walk to the right until it reaches the tooth base 17b and remains there to fix the switch-on position.

Bei einer nachfolgenden Betätigung der Drucktaste 12 wandert der Führungsstift 23 bezüglich der Fig. 8 weiter nach rechts, um dann den nächsten tiefen Zahngrund 17a zu erreichen und erneut die Ausschaltstellung zu arretieren.When the pushbutton 12 is subsequently actuated, the guide pin 23 moves further to the right in relation to FIG. 8, in order then to reach the next deep tooth base 17a and to lock the switch-off position again.

Wie die Zeichnungen erkennen lassen, sind an zwei gegenüberliegenden Längsseiten des Betätigungskolbens 9 die beweglichen Schaltkontakte 6 gelagert und dort bei 28 befestigt. Die freien Enden der beweglichen Kontakte 6 tragen an ihrem freien Ende Schleifbügel ?7 zur Beaufschlagung der in koaxiler Ausrichtung angeordneten festen Kontakte 5. Je nach Ausfüllung der Längsschlitze 8 in den festen Kontakten 5 ergibt sich bei gedrückter oder auch ungedrückter Drucktaste 12 eine leitende Verbindung zwischen festem und beweglichem Kontakt. Die wahlweise zwischen den beweglichen Kontakten 26 vorgesehenen Verbindungsstege können dafür sorgen, daß zwei oder mehr der Anschlüsse 4 miteinander verbunden werden oder nicht. Je nach zugedachter Schaltfunktion können diese Stege 29 an beliebigen Stellen durchtrennt werden, damit der Schalter einer Mehrzahl von unabhängigen Schaltkreisen dienen kann.As can be seen in the drawings, the movable switching contacts 6 are mounted on two opposite longitudinal sides of the actuating piston 9 and fastened there at 28. The free ends of the movable contacts 6 carry at their free end grinding brackets 7 for acting on the fixed contacts 5 arranged in a coaxial orientation. Depending on the filling of the longitudinal slots 8 in the fixed contacts 5, a conductive connection results between the depressed and also depressed pushbutton 12 firm and mobile contact. The connecting webs optionally provided between the movable contacts 26 can ensure that two or more of the connections 4 are connected to one another or not. Depending on the intended switching function, these webs 29 can be severed at any point so that the switch can serve a plurality of independent circuits.

Das Oberteil 13 des Betätigungskolbens 9 trägt die Fassung 24 für eine Signallampe 25, mit der ebenfalls über die vorerwähnte Kontaktanordnung der Schaltzustand des Druckschalters nach außen signalisiert werden kann. Zu diesem Zweck ist selbstverständlich die Drucktaste 12 mit einer entsprechenden Öffnung, einem durchscheinenden Mittelabschnitt oder dergleichen versehen.The upper part 13 of the actuating piston 9 carries the socket 24 for a signal lamp 25, with which the switching state of the pressure switch can also be signaled to the outside via the aforementioned contact arrangement. For this purpose, the push button 12 is of course provided with a corresponding opening, a translucent central section or the like.

Claims (12)

1. Druckschalter mit im Boden des Schaltergehäuses angeordneten stationären Schaltkontakten, einem mit äußerer Drucktaste versehenen, die beweglichen Schaltkontakte tragenden, entgegen einer Rückstellfeder im Schaltergehäuse axial beweglich geführten Betätigungskolben und einer zwischen Betätigungskolben und Schaltergehäuse wirkenden, aus Kulissenführung und Führungsstift bestehenden Rasteinrichtung, welche den Betätigungskolben nach einer ersten Betätigung in einer ersten Schaltstellung hält und sie bei einer nachfolgenden Betätigung wieder zur Rückkehr in die Ruhestellung freigibt dadurch gekennzeichnet, daß der Betätigungskolben (9) eine innere zylindrische Ausnehmung (40) enthält, in der mit geringem Abstand einander gegenüberliegende Kreisringflächen ( 15, 16) radial gerichtete Zähne (43,44) unterschiedlicher Zahnhöhe aufweisen, die zusammen eine ringsumlaufende zick-zack-förmige Kulissenführungsbahn (19) bilden, und daß ein in die zylindrische Ausnehmung (40) eingreifender, zentrisch im Schaltergehäuse (1) angeordneter Bolzen (21) einen sich diametral erstreckenden, drehbar aber axial unverschiebbar gelagerten Führungsstift (23) trägt, dessen Enden in die Kulissenführungsbahn (19) eingreifen.1.Pressure switch with stationary switching contacts arranged in the bottom of the switch housing, an actuating piston provided with an external pushbutton and carrying the movable switching contacts, axially movably guided against a return spring in the switch housing, and a latching device which acts between the actuating piston and the switch housing and consists of a link guide and guide pin, which act as the actuating piston holds after a first actuation in a first switching position and releases it again upon returning to the rest position, characterized in that the actuating piston (9) contains an inner cylindrical recess (40) in which circular ring surfaces (15 , 16) have radially directed teeth (43, 44) of different tooth heights, which together form a circumferential zigzag-shaped link guide track (19), and that a central, engaging in the cylindrical recess (40) isch in the switch housing (1) arranged bolt (21) carries a diametrically extending, rotatably but axially immovably mounted guide pin (23), the ends of which engage in the link guide track (19). 2. Druckschalter nach Anspruch 1 dadurch gekennzeichnet,daß der den drehbar gelagerten Führungsstift (23) tragende Bolzen (21) am Gehäuseboden (2) angebracht ist und als Führung für eine Rückstellschraubenfeder (22) dient, die sich einerseits am Gehäuseboden (2) und andererseits an der Unterseite des Betätigungskolbens (9) abstützt.2. Pressure switch according to claim 1, characterized in that the rotatably mounted guide pin (23) carrying bolt (21) is attached to the housing base (2) and serves as a guide for a return coil spring (22), which is supported on the one hand on the housing base (2) and on the other hand on the underside of the actuating piston (9). 3. Druckschalter nach Anspruch 1 und 2 dadurch gekennzeichnet, daß das Schaltergehäuse (1) und der Betätigungskolben (9) einander angepaßte rechteckige Querschnitte mit abgerundeten Ecken haben und teleskopartig in einander geführt sind.3. Pressure switch according to claim 1 and 2, characterized in that the switch housing (1) and the actuating piston (9) have mutually adapted rectangular cross sections with rounded corners and are telescopically guided. 4. Druckschalter nach Anspruch 3 dadurch gekennzeichnet, daß der Betätigungskolben (9) im Schaltergehäuse (1) lediglich im Bereich der vier abgerundeten Ecken (30) geführt ist.4. Pressure switch according to claim 3, characterized in that the actuating piston (9) in the switch housing (1) is guided only in the region of the four rounded corners (30). 5. Druckschalter nach Anspruch 1 bis 4 dadurch gekennzeichnet, daß das obere Ende des Betätigungskolbens (9) von einem die Drucktaste (12) tragenden Rohr (10) gebildet ist, welches eine Signallampe (24, 25) umschließt.5. Pressure switch according to claim 1 to 4, characterized in that the upper end of the actuating piston (9) is formed by a push button (12) carrying tube (10) which encloses a signal lamp (24, 25). 6. Druckschalter nach Anspruch 5 dadurch gekennzeichnet, daß die Fassung (24) der Signallampe (25) fest mit der oberen Wand (13) des Betätigungskolbens (9) verbunden ist.6. Pressure switch according to claim 5, characterized in that the socket (24) of the signal lamp (25) is fixed to the upper wall (13) of the actuating piston (9). 7. Druckschalter nach Anspruch 5 und 6 dadurch gekennzeichnet, daß die Drucktaste (12) mindestens in ihrem Mittelteil durchscheinend ausgebildet ist.7. Pressure switch according to claim 5 and 6, characterized in that the push button (12) is translucent at least in its central part. 8. Druckschalter nach Anspruch 5 bis 7 dadurch gekennzeichnet, daß die Drucktaste (12) lösbar mit dem oberen Ende des Betätigungskolben-Rohres (10) verbunden ist.8. Pressure switch according to claim 5 to 7, characterized in that the push button (12) is detachably connected to the upper end of the actuating piston tube (10). 9. Druckschalter nach Anspruch 1 bis 8 dadurch gekennzeichnet, daß die beweglichen Schaltkontakte (26) in zwei einander gegenüberliegenden Reihen längs der großen Querschnittsabmessung des Betätigungskolbens (9) angeordnet sind.9. Pressure switch according to claim 1 to 8, characterized in that the movable switching contacts (26) are arranged in two opposite rows along the large cross-sectional dimension of the actuating piston (9). 10. Druckschalter nach Anspruch 1 bis 9 dadurch gekennzeichnet, daß die Hinterenden der beweglichen Kontakte (26) formschlUssig in Längsschlitzen der Wandungen des Betätigungskolbens (9) ruhen und an ihren frei nach unten vorragenden Vorderenden zu Kontaktbügeln (27) ausgebildet sind, die die im Boden (2) des Druckschaltergehäuses (1) entsprechend angeordneten festen Kontakte (5.) beaufschlagen.10. Pressure switch according to claim 1 to 9, characterized in that the rear ends of the movable contacts (26) rest positively in longitudinal slots of the walls of the actuating piston (9) and are formed on their freely downwardly projecting front ends to contact brackets (27) which in Apply pressure to the bottom (2) of the pressure switch housing (1) according to the fixed contacts (5.). 11. Druckschalter nach Anspruch 1 bis 10 dadurch gekennzeichnet, daß die festen Kontakte (5 ) abgekröpft und im Bereich ihrer Abkröpfung (6) formschlüssig im Gehäuseboden (2) gelagert sind, wobei die Abkröpfungen (6) dafür sorgen, daß die unten am Gehäuseboden (2) vorragenden Anschlüsse (7) der Konfiguration einer zugehörigen Steckdose entsprechen.11. Pressure switch according to claim 1 to 10, characterized in that the fixed contacts (5) are cranked and are positively mounted in the region of their cranking (6) in the housing base (2), the cranking (6) ensuring that the bottom of the housing base (2) projecting connections (7) correspond to the configuration of an associated socket. 12. Druckschalter nach Anspruch 1 bis 11 dadurch gekennzeichnet, daß die nach innen vorragenden Enden der festen Kontakte (5 ) mit einem Längsschlitz (8) versehen sind, dessen Länge in etwa dem maximalen Druckschalter-Hub entspricht, wobei diese Längsschlitze (8) je nach beabsichtigter Schaltfunktion im oberen Bereich oder im unteren Bereich von vorragender Isolierstoffmasse der Kontaktverankerung durchdrungen sind.12. Pressure switch according to claim 1 to 11, characterized in that the inwardly projecting ends of the fixed contacts (5) are provided with a longitudinal slot (8), the length of which corresponds approximately to the maximum pressure switch stroke, depending on the intended switching function, these longitudinal slots (8) are penetrated in the upper region or in the lower region by protruding insulating material of the contact anchoring.
EP82107616A 1981-11-19 1982-08-20 Push button switch Expired EP0080028B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82107616T ATE16656T1 (en) 1981-11-19 1982-08-20 PRESSURE SWITCH.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813145803 DE3145803A1 (en) 1981-11-19 1981-11-19 PRESSURE SWITCH
DE3145803 1981-11-19

Publications (2)

Publication Number Publication Date
EP0080028A1 true EP0080028A1 (en) 1983-06-01
EP0080028B1 EP0080028B1 (en) 1985-11-21

Family

ID=6146697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82107616A Expired EP0080028B1 (en) 1981-11-19 1982-08-20 Push button switch

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Country Link
EP (1) EP0080028B1 (en)
AT (1) ATE16656T1 (en)
DE (2) DE3145803A1 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN111973451A (en) * 2020-05-21 2020-11-24 宁波布莱威尔产品设计有限公司 Medicine box capable of preventing people from missing and eating more medicine

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Publication number Priority date Publication date Assignee Title
US4670629A (en) * 1985-06-20 1987-06-02 Cts Corporation Alternate action push-push switch
US5651450A (en) * 1994-03-28 1997-07-29 Priesemuth; Wolfgang Switches, in particular switches that can be installed into the instrument panel of a vehicle, and a method for manufacturing a switch
DE4410771B4 (en) * 1994-03-28 2006-08-24 Trw Automotive Electronics & Components Gmbh & Co. Kg Switch, in particular in the dashboard of a motor vehicle installable switch, and method for producing a switch
DE19714522C1 (en) * 1997-04-08 1998-05-07 Priesemuth W Switch and rotary contact

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CH91232A (en) * 1920-09-10 1921-10-17 Gustav Goetz Electric switch.
FR929828A (en) * 1945-07-20 1948-01-08 Control device, with button, for closing and / or opening electric circuits, in particular for switches, switches, circuit breakers and the like
GB698547A (en) * 1950-09-21 1953-10-21 Ward Goldstone Ltd Improvements in or relating to push button electric switches
FR1362299A (en) * 1963-07-05 1964-05-29 Elettroplast Societa Per Azion Electrical push-button switch with a crew capable of taking two axially differentiated positions in the closed and open circuit arrangements
DE2126125A1 (en) * 1971-05-26 1972-12-07 Bbc Brown Boveri & Cie Electric push button switch

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FR2173709B1 (en) * 1972-02-29 1976-07-09 Isostat
DE7442180U (en) * 1974-12-19 1975-04-24 Baer Elektrowerke Kg Electrical built-in switch
DE2606551C3 (en) * 1976-02-19 1980-12-04 Wolfgang 2210 Itzehoe Priesemuth Pressure switch

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH91232A (en) * 1920-09-10 1921-10-17 Gustav Goetz Electric switch.
FR929828A (en) * 1945-07-20 1948-01-08 Control device, with button, for closing and / or opening electric circuits, in particular for switches, switches, circuit breakers and the like
GB698547A (en) * 1950-09-21 1953-10-21 Ward Goldstone Ltd Improvements in or relating to push button electric switches
FR1362299A (en) * 1963-07-05 1964-05-29 Elettroplast Societa Per Azion Electrical push-button switch with a crew capable of taking two axially differentiated positions in the closed and open circuit arrangements
DE2126125A1 (en) * 1971-05-26 1972-12-07 Bbc Brown Boveri & Cie Electric push button switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111973451A (en) * 2020-05-21 2020-11-24 宁波布莱威尔产品设计有限公司 Medicine box capable of preventing people from missing and eating more medicine

Also Published As

Publication number Publication date
DE3145803C2 (en) 1990-08-16
EP0080028B1 (en) 1985-11-21
ATE16656T1 (en) 1985-12-15
DE3145803A1 (en) 1983-05-26
DE3267602D1 (en) 1986-01-02

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