EP0157002A1 - Push button switch with at least one bridge contact - Google Patents

Push button switch with at least one bridge contact Download PDF

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Publication number
EP0157002A1
EP0157002A1 EP84116146A EP84116146A EP0157002A1 EP 0157002 A1 EP0157002 A1 EP 0157002A1 EP 84116146 A EP84116146 A EP 84116146A EP 84116146 A EP84116146 A EP 84116146A EP 0157002 A1 EP0157002 A1 EP 0157002A1
Authority
EP
European Patent Office
Prior art keywords
switch
push button
housing
contacts
pushbutton
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
EP84116146A
Other languages
German (de)
French (fr)
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EP0157002B1 (en
Inventor
Winfried Kirchner
Felix Dipl.-Ing. Lins (Fh)
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
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Siemens AG
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Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP0157002A1 publication Critical patent/EP0157002A1/en
Application granted granted Critical
Publication of EP0157002B1 publication Critical patent/EP0157002B1/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
    • H01H1/2075—T-shaped bridge; bridging contact has lateral arm for mounting resiliently or on a pivot
    • 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
    • H01H13/562—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 making use of a heart shaped cam

Definitions

  • the invention relates to a push button switch with at least one switching bridge which can be moved back and forth between two switching positions by means of a spring-loaded push button which is movably guided in the switch housing, the switching bridge connecting two fixed contacts on the switch housing in one position and in the other position by the switch housing Contact is lifted, in which switch the switching bridge is also held in its one switching position by means of a locking element, which can be brought into its locking position and the other time into its unlocking position when the push button is pressed.
  • Such a push button switch is known from DE-PS 24 16 969.
  • This known push button switch consists of a large number of parts and is therefore very complex to manufacture and assemble.
  • the invention has for its object to construct a push button switch of the type described above so that it consists of only a few items that are easy to assemble.
  • the push button has a tubular extension that extends over the entire height of the switch housing and is flattened on one side , into which a slide, which is movably guided in a transverse groove of the switch housing, engages with a pin formed on it, and further that the switching bridge is fixed to one arranged on the tubular extension, laterally projecting supporting part and is pressed by the spring acting on the push button in one switch position against the contacts arranged on the switch housing.
  • the switching bridge simultaneously takes over the fixing of the push button in one position and in the other position, in which the switching bridge is lifted from the contact fixed to the housing, the push button is fixed by the slide, which then lies with its pin in the recessed recess of the central pin and so on holds the push button in this position against the force of the spring.
  • the heart-shaped guide groove is elongated at its lower tip, the length of the slot being dimensioned so that the switching bridge comes into contact with the contacts fixed to the housing without the pin at the end of the Slot is present.
  • the assembly of the spring is particularly simple in that a coil spring is arranged concentrically on the tubular extension as a spring and is supported at one end on a projecting edge of the push button and at the other end in a circular recess in the switch housing.
  • the supporting part and the switching bridge are integrally formed as a T-shaped contact piece, the T-bar forming the switching bridge and the T-shaped contact piece with its shaft in a through both walls of the tubular extension through transverse slot inserted and by means of a locking tongue provided on the shaft in the cavity of the tubular approach is locked.
  • a push-button 3 having a tubular extension 2 is slidably guided.
  • a helical spring 4 is arranged concentrically to the tubular extension 2 and is supported at one end on an edge 5 formed on the push button 3 and at the other end in a circular recess 6 of the switch housing 1.
  • a lateral projection 7 is formed, in which two contacts 8 fixed to the housing are arranged side by side. The contacts 8 fixed to the housing are connected to contact tabs 9 protruding from the projection 7.
  • a transverse groove 10 is provided, in which a slide 11 is movably guided.
  • a pin 12 is formed, which in one on the flattened side of the tubular extension 2 formed heart-shaped guide groove 14 protrudes.
  • the heart-shaped guide groove is guided around a central pin 15, which has a locking recess 16, in which the pin 12 bears against the central pin 15 in the one switching position, as shown in FIG. 1.
  • the lower tip 17 of the heart-shaped guide groove 14 merges into a slot 18.
  • a transverse slot 19 is provided, which passes through both walls of the tubular extension. This transverse slot 19 serves to receive a T-shaped contact piece 20, the T-bar 21 of which forms a switching bridge for the contacts 8 fixed to the housing.
  • the T-shaped contact piece 20 With its shaft 22, the T-shaped contact piece 20 is inserted into the transverse slot 19 on the tubular extension 2 of the push button 2.
  • a latching tongue 23 On the shaft 22 of the T-shaped contact piece 20, a latching tongue 23 is also provided which, after the shaft 22 has been inserted into the transverse slot 19, springs upwards in the cavity 24 of the tubular extension 2 and is thereby behind one wall of the tubular extension 2 hooked, so that the T-shaped contact piece 20 is thereby held on the tubular extension 2.
  • Fig. 1 the push button switch is shown in the switching position in which the switching bridge 21 is lifted from the contacts 8 fixed to the housing.
  • the pin 12 of the slider 11 is located in the recess 16 of the central pin 15.
  • the push button 3 is held against the force of the coil spring 4 in the position shown, in which the switching bridge 21 is lifted from the contacts 8 fixed to the housing.
  • the pin 12 abuts the edge 25 of the guide groove 14 lying above the locking recess 15.
  • the slide 11 is thereby laterally displaced in the transverse groove 10 so that its pin 12 lies over the vertical part 26 of the heart-shaped guide groove 14.
  • the push button 3 When the push button 3 is released, it is now pressed upwards by the coil spring 4, whereby the vertical part 26 of the heart-shaped guide groove 14 passes the pin 12. The pin 12 finally meets a lower run-on slope 27 of the heart-shaped guide groove 14 and slides along it, so that the slider 11 is again displaced in the transverse groove. Finally, the pin 12 passes through the slot 18.
  • the push button 3 is pressed upwards by the helical spring 4 until the switching bridge 21 bears on the contacts 8 fixed to the housing.
  • the contact pressure of the switching bridge 21 on the housing-fixed contact is exerted by the coil spring 4.
  • the length of the slot 18 is dimensioned such that the pin 12 does not yet abut the end of the slot 18 when the switching bridge 21 is in contact with the contacts 8 fixed to the housing.
  • the switching bridge 21 can freely contact the contacts 8 fixed to the housing.
  • An insertion groove 29 is formed in the right half of the heart-shaped guide groove 14, through which the slide 11 inserted into the transverse groove 10 from the outside can be inserted with its pin 12 into the heart-shaped guide groove 14.

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  • Push-Button Switches (AREA)

Abstract

1. Pushbutton switch having at least one switch bridge (21) adapted to be moved to an from between two switching positions by means of a spring-loaded pushbutton (3) movable in and guided in the switch housing, the switch bridge (21) in one position connecting two contacts (8) arranged fixedly on the switch housing (1) and in the other position being separated from these contacts (8), and in which switch moreover the pushbutton (3) comprises, for locking in the actuated position and for unlocking from the latter position by renewed actuation, at one flattened side of its pushbutton shank, which shank extends over the entire height of the switch housing, a guide notch (14) which is of heart-shaped form disposed about a central pin (15) provided with a retaining recess and into which engages a pin formed on a slide (11) movable in and guided in a transverse slot (10) of the switch housing (1), characterized in that the switch bridge (21) is arranged on a laterally projecting supporting element assemblable securely on the pushbutton shank, the latter being constructed as a tubular extension (2), and that the heart-shaped guide notch (14) is extended downwardly in slot form, the length of the slot (18) being so dimensioned that by the action of the spring (4) acting on the pushbutton (3) the switch bridge (21) comes to abut on the contacts (8) fixed to the housing without the pin (12) of the slide (11) abutting on the end of the slot (18).

Description

Die Erfindung betrifft einen Druckknopfschalter mit mindestens einer Schaltbrücke, die mittels eines im Schaltergehäuse beweglich geführten, federbelasteten Druckknopfes zwischen zwei Schaltstellungen hin- und herbewegbar ist, wobei die Schaltbrücke in der einen Stellung zwei am Schaltergehäuse fest angeordnete Kontakte verbindet und in der anderen Stellung von diesem Kontakt abgehoben ist, bei welchem Schalter ferner die Schaltbrücke mittels eines Sperrgliedes, welches beim Betätigen des Druckknopfes einmal in seine Sperrstellung und zum anderen Mal in seine Entriegelungsstellung bringbar ist, in ihrer einen Schaltstellung gehalten ist.The invention relates to a push button switch with at least one switching bridge which can be moved back and forth between two switching positions by means of a spring-loaded push button which is movably guided in the switch housing, the switching bridge connecting two fixed contacts on the switch housing in one position and in the other position by the switch housing Contact is lifted, in which switch the switching bridge is also held in its one switching position by means of a locking element, which can be brought into its locking position and the other time into its unlocking position when the push button is pressed.

Ein solcher Druckknopfschalter ist durch die DE-PS 24 16 969 bekannt. Dieser bekannte Druckknopfschalter besteht aus einer Vielzahl von Teilen und ist daher sehr aufwendig in der Fertigung und Montage.Such a push button switch is known from DE-PS 24 16 969. This known push button switch consists of a large number of parts and is therefore very complex to manufacture and assemble.

Der Erfindung liegt die Aufgabe zugrunde, einen Druckknopfschalter der eingangs beschriebenen Art konstruktiv so auszubilden, daß dieser nur noch aus wenigen Einzelteilen besteht, die in einfacher Weise zusammenfügbar sind.The invention has for its object to construct a push button switch of the type described above so that it consists of only a few items that are easy to assemble.

Die Lösung der gestellten Aufgabe gelingt nach der Erfindung dadurch, daß der Druckknopf einen sich über die ganze Höhe des Schaltergehäuses erstreckenden, auf einer Seite abgeflachten rohrförmigen Ansatz aufweist, an dessen abgeflachter Seite eine um einen mit einer Rastmulde versehenen Mittelzapfen herum herzförmig ausgebildete Führungsnut vorgesehen ist, in die ein in einer Quernut des Schaltergehäuses beweglich geführter Schieber mit einem an ihm angeformten Zapfen eingreift, daß ferner die Schaltbrücke an einem fest an dem rohrförmigen Ansatz montierbaren, seitlich vorstehenden Tragteil angeordnet und durch die am Druckknopf angreifende Feder in der einen Schaltstellung gegen die am Schaltergehäuse angeordneten Kontakte gedrückt ist. Infolge dieser konstruktiven Gestaltung des Schalters ist nur eine einzige Feder erforderlich, die sowohl die Funktion der Rückstellung des Druckknopfes als auch das Andrücken der Schaltbrücke Rn die gehäusefesten Kontakte ausübt. Die Schaltbrücke übernimmt gleichzeitig die Fixierung des Druckknopfes in der einen Stellung und in der anderen Stellung, in der die Schaltbrücke von dem gehäusefesten Kontakt abgehoben ist, wird der Druckknopf durch den Schieber fixiert, der mit seinem Zapfen dann in der Rastmulde des Mittelzapfens anliegt und so den Druckknopf gegenüber der Kraft der Feder in dieser Stellung hält.The object is achieved according to the invention in that the push button has a tubular extension that extends over the entire height of the switch housing and is flattened on one side , into which a slide, which is movably guided in a transverse groove of the switch housing, engages with a pin formed on it, and further that the switching bridge is fixed to one arranged on the tubular extension, laterally projecting supporting part and is pressed by the spring acting on the push button in one switch position against the contacts arranged on the switch housing. As a result of this structural design of the switch, only a single spring is required, which performs both the function of resetting the push button and pressing the switching bridge R n on the contacts fixed to the housing. The switching bridge simultaneously takes over the fixing of the push button in one position and in the other position, in which the switching bridge is lifted from the contact fixed to the housing, the push button is fixed by the slide, which then lies with its pin in the recessed recess of the central pin and so on holds the push button in this position against the force of the spring.

Damit die Feder die Schaltbrücke gegen die gehäusefesten Kontakte pressen kann, ist die herzförmige Führungsnut an ihrer unteren Spitze schlitzartig verlängert, wobei die Länge des Schlitzes so bemessen ist, daß die Schaltbrücke zur Anlage an den gehäusefesten Kontakten kommt, ohne daß der Zapfen am Ende des Schlitzes anliegt.So that the spring can press the switching bridge against the contacts fixed to the housing, the heart-shaped guide groove is elongated at its lower tip, the length of the slot being dimensioned so that the switching bridge comes into contact with the contacts fixed to the housing without the pin at the end of the Slot is present.

Die Montage der Feder gestaltet sich dadurch besonders einfach, daß als Feder eine Schraubenfeder konzentrisch auf dem rohrförmigen Ansatz angeordnet und mit ihrem einen Ende an einem vorspringenden Rand des Druckknopfes und mit ihrem anderen Ende in einer kreisförmigen Vertiefung des Schaltergehäuses abgestützt ist.The assembly of the spring is particularly simple in that a coil spring is arranged concentrically on the tubular extension as a spring and is supported at one end on a projecting edge of the push button and at the other end in a circular recess in the switch housing.

Zur Verminderung der Bauteile des Schalters trägt auch bei, daß das Tragteil und die Schaltbrücke einteilig als T-förmiges Kontaktstück ausgebildet sind, wobei der T-Balken die Schaltbrücke bildet und das T-förmige Kontaktstück mit seinem Schaft in einen durch beide Wände des rohrförmigen Ansatzes durchgehenden Querschlitz eingesteckt und mittels einer am Schaft vorgesehenen Rastzunge im Hohlraum des rohrförmigen Ansatzes verrastet ist. Damit sind nicht nur das i'ragteil und die Schaltbrücke zu einem einzigen Bauteil vereinigt, sondern es entfallen auch gesonderte Befestigungsteile.To reduce the components of the switch also contributes to the fact that the supporting part and the switching bridge are integrally formed as a T-shaped contact piece, the T-bar forming the switching bridge and the T-shaped contact piece with its shaft in a through both walls of the tubular extension through transverse slot inserted and by means of a locking tongue provided on the shaft in the cavity of the tubular approach is locked. This means that not only the i'ragteil and the switching bridge are combined into a single component, but there are also no separate fastening parts.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels wird der Anmeldungsgegenstand nachfolgend näher beschrieben. Es zeigt

  • Fig. 1 einen Druckknopfschalter im Schnitt,
  • Fig. 2 eine Seitenansicht des Druckknopfschalters nach Fig. 1,
  • Fig. 3 einen Druckknopfschalter im Schnitt entlang der Linie III-III in Fig. 1,
  • Fig. 4 eine Ansicht der abgeflachten Seite des Druckknopfes in vergrößerter Darstellung,
  • Fig. 5 den in Fig. 4 dargestellten Druckknopf im Schnitt,
  • Fig. 6 einen Detailschnitt des rohrförmigen Ansatzes mit einem daran befestigten T-förmigen Kontaktstück,
  • Fig. 7 eine Ansicht des rohrförmigen Ansatzes von unten.
The subject of the application is described in more detail below using an exemplary embodiment shown in the drawing. It shows
  • 1 is a push button switch in section,
  • 2 is a side view of the push button switch of FIG. 1,
  • 3 is a push button switch in section along the line III-III in Fig. 1,
  • 4 is a view of the flattened side of the push button in an enlarged view,
  • 5 shows the push button shown in FIG. 4 in section,
  • 6 shows a detailed section of the tubular extension with a T-shaped contact piece attached to it,
  • Fig. 7 is a view of the tubular approach from below.

Mit 1 ist ein Schaltergehäuse bezeichnet, in welchem ein einen rohrförmigen Ansatz 2 aufweisender Druckknopf 3 verschiebbar geführt ist. Konzentrisch zu dem rohrförmigen Ansatz 2 ist eine Schraubenfeder 4 angeordnet, die sich mit ihrem einen Ende an einem an dem Druckknopf 3 angeformten Rand 5 und mit ihrem anderen Ende in einer kreisförmigen Vertiefung 6 des Schaltergehäuses 1 abstützt. Am unteren Ende des Schaltergehäuses 1 ist ein seitlicher Vorsprung 7 angeformt, in welchem zwei gehäusefeste Kontakte 8 nebeneinanderliegend angeordnet sind. Die gehäusefesten Kontakte 8 sind mit aus dem Vorsprung 7 herausragenden Kontaktfahnen 9 verbunden.1 with a switch housing is referred to, in which a push-button 3 having a tubular extension 2 is slidably guided. A helical spring 4 is arranged concentrically to the tubular extension 2 and is supported at one end on an edge 5 formed on the push button 3 and at the other end in a circular recess 6 of the switch housing 1. At the lower end of the switch housing 1, a lateral projection 7 is formed, in which two contacts 8 fixed to the housing are arranged side by side. The contacts 8 fixed to the housing are connected to contact tabs 9 protruding from the projection 7.

In dem Schaltergehäuse 1 ist eine Quernut 10 vorgesehen, in der ein Schieber 11 beweglich geführt ist. An dem Schieber 11 ist ein Zapfen 12 angeformt, welcher in eine an der abgeflachten Seite des rohrförmigen Ansatzes 2 ausgebildete herzförmige Führungsnut 14 hineinragt. Die herzförmige Führungsnut ist um einen Mittelzapfen 15 herumgeführt, der eine Rastmulde 16 aufweist, in welcher der Zapfen 12 in der einen Schaltstellung, wie in Fig. 1 gezeigt, an dem Mittelzapfen 15 anliegt. Die untere Spitze 17 der herzförmigen Führungsnut 14 geht in einen Schlitz 18 über. Unterhalb des Schlitzes 18 ist ein Querschlitz 19, der durch beide Wände des rohrförmigen Ansatzes hindurchgeht, vorgesehen. Dieser Querschlitz 19 dient zur Aufnahme eines T-förmigen Kontaktstückes 20, dessen T-Balken 21 eine Schaltbrücke für die gehäusefesten Kontakte 8 bildet. Mit seinem Schaft 22 ist das T-förmige Kontaktstück 20 in den Querschlitz 19 an dem rohrförmigen Ansatz 2 des Druckknopfes 2 eingesteckt. An dem Schaft 22 des T-förmigen Kontaktstückes 20 ist ferner eine Rastzunge 23 vorgesehen, die nach dem Einschieben des Schaftes 22 in den Querschlitz 19 in dem Hohlraum 24 des rohrförmigen Ansatzes 2 nach oben federt und sich dabei hinter der einen Wand des rohrförmigen Ansatzes 2 verhakt, so daß hierdurch das T-förmige Kontaktstück 20 an dem rohrförmigen Ansatz 2 gehalten wird.In the switch housing 1, a transverse groove 10 is provided, in which a slide 11 is movably guided. On the slide 11, a pin 12 is formed, which in one on the flattened side of the tubular extension 2 formed heart-shaped guide groove 14 protrudes. The heart-shaped guide groove is guided around a central pin 15, which has a locking recess 16, in which the pin 12 bears against the central pin 15 in the one switching position, as shown in FIG. 1. The lower tip 17 of the heart-shaped guide groove 14 merges into a slot 18. Below the slot 18, a transverse slot 19 is provided, which passes through both walls of the tubular extension. This transverse slot 19 serves to receive a T-shaped contact piece 20, the T-bar 21 of which forms a switching bridge for the contacts 8 fixed to the housing. With its shaft 22, the T-shaped contact piece 20 is inserted into the transverse slot 19 on the tubular extension 2 of the push button 2. On the shaft 22 of the T-shaped contact piece 20, a latching tongue 23 is also provided which, after the shaft 22 has been inserted into the transverse slot 19, springs upwards in the cavity 24 of the tubular extension 2 and is thereby behind one wall of the tubular extension 2 hooked, so that the T-shaped contact piece 20 is thereby held on the tubular extension 2.

In Fig. 1 ist der Druckknopfschalter in der Schaltstellung gezeigt, in der die Schaltbrücke 21 von den gehäusefesten Kontakten 8 abgehoben ist. Der Zapfen 12 des Schiebers 11 liegt hierbei in der Rastmulde 16 des Mittelzapfens 15. Hierdurch wird der Druckknopf 3 gegen die Kraft der Schraubenfeder 4 in der gezeigten Stellung gehalten, in der die Schaltbrücke 21 von den gehäusefesten Kontakten 8 abgehoben ist. Beim Niederdrücken des Druckknopfes 3 stößt der Zapfen 12 an die über der Rastmulde 15 liegende Kante 25 der Führungsnut 14. Der Schieber 11 wird hierdurch in der Quernut 10 seitlich verschoben, so daß sein Zapfen 12 über dem senkrechten Teil 26 der herzförmigen Führungsnut 14 liegt. Beim Loslassen des Druckknopfes 3 wird dieser nunmehr durch die Schraubenfeder 4 nach oben gedrückt, wobei der senkrechte Teil 26 der herzförmigen Führungsnut 14 an dem Zapfen 12 vorbeifährt. Der Zapfen 12 trifft schließlich auf eine untere Anlaufschräge 27 der herzförmigen Führungsnut 14 und gleitet an dieser entlang, so daß der Schieber 11 wiederum in der Quernut verschoben wird. Schließlich gelangt der Zapfen 12 über den Schlitz 18. Der Druckknopf 3 wird durch die Schraubenfeder 4 soweit nach oben gedrückt, bis die Schaltbrücke 21 an den gehäusefesten Kontakten 8 anliegt. Der Kontaktdruck der Schaltbrücke 21 auf die gehäusefesten Kontakt wird dabei von der Schraubenfeder 4 ausgeübt. Die Länge des Schlitzes 18 ist so bemessen, daß der Zapfen 12 beim Anliegen der Schaltbrücke 21 an den gehäusefesten Kontakten 8 noch nicht an dem Ende des Schlitzes 18 anliegt. Somit kann sich die Schaltbrücke 21 frei an den gehäusefesten Kontakten 8 anlegen.In Fig. 1 the push button switch is shown in the switching position in which the switching bridge 21 is lifted from the contacts 8 fixed to the housing. The pin 12 of the slider 11 is located in the recess 16 of the central pin 15. As a result, the push button 3 is held against the force of the coil spring 4 in the position shown, in which the switching bridge 21 is lifted from the contacts 8 fixed to the housing. When the push button 3 is depressed, the pin 12 abuts the edge 25 of the guide groove 14 lying above the locking recess 15. The slide 11 is thereby laterally displaced in the transverse groove 10 so that its pin 12 lies over the vertical part 26 of the heart-shaped guide groove 14. When the push button 3 is released, it is now pressed upwards by the coil spring 4, whereby the vertical part 26 of the heart-shaped guide groove 14 passes the pin 12. The pin 12 finally meets a lower run-on slope 27 of the heart-shaped guide groove 14 and slides along it, so that the slider 11 is again displaced in the transverse groove. Finally, the pin 12 passes through the slot 18. The push button 3 is pressed upwards by the helical spring 4 until the switching bridge 21 bears on the contacts 8 fixed to the housing. The contact pressure of the switching bridge 21 on the housing-fixed contact is exerted by the coil spring 4. The length of the slot 18 is dimensioned such that the pin 12 does not yet abut the end of the slot 18 when the switching bridge 21 is in contact with the contacts 8 fixed to the housing. Thus, the switching bridge 21 can freely contact the contacts 8 fixed to the housing.

Beim erneuten Betätigen des Druckknopfes 3 stößt der Druckknopf 3 mit der Außenkontur 28 des Mittelzapfens 15 gegen den Zapfen 12 und dieser gleitet an der Außenkontur 28 entlang in die obere rechte Hälfte der herzförmigen Führungsnut 14. Beim Loslassen des Druckknopfes 3 gleitet der Zapfen 12 in die Rastmulde 16 des Mittelzapfens 15 und hält den Druckknopf wiederum in der anderen Schaltstellung, in der die Schaltbrücke 21 von den gehäusefesten Kontakten 8 abgehoben ist.When the push button 3 is actuated again, the push button 3 with the outer contour 28 of the central pin 15 abuts the pin 12 and this slides along the outer contour 28 into the upper right half of the heart-shaped guide groove 14. When the push button 3 is released, the pin 12 slides into the Locking recess 16 of the central pin 15 and holds the push button in turn in the other switching position, in which the switching bridge 21 is lifted from the contacts 8 fixed to the housing.

In der rechten Hälfte der herzförmigen Führungsnut 14 ist eine Einführungsnut 29 ausgebildet, durch die der in die Quernut 10 von außen eingesetzte Schieber 11 mit seinem Zapfen 12 in die herzförmige Führungsnut 14 eingeschoben werden kann.An insertion groove 29 is formed in the right half of the heart-shaped guide groove 14, through which the slide 11 inserted into the transverse groove 10 from the outside can be inserted with its pin 12 into the heart-shaped guide groove 14.

Claims (4)

1. Druckknopfschalter mit mindestens einer Schaltbrücke, die mittels eines im Schaltergehäuse beweglich geführten, federbelasteten Druckknopfes (3) zwischen zwei SchaltsteIlungen hin- und herbewegbar ist, wobei die Schaltbrücke (21) in der einen Stellung zwei am Schaltergehäuse (1) fest angeordnete Kontakte (8) verbindet und in der anderen Stellung von diesen Kontakten (8) abgehoben ist, bei welchem Schalter ferner die Schaltbrücke (21) mittels eines Sperrgliedes, welches beim Betätigen des Druckknopfes (3) einmal in seine Sperrstellung und zum anderen Mal in seine Entriegelungsstellung bringbar ist, in ihrer einen Schaltstellung gehalten ist, dadurch gekennzeichnet , daß der Druckknopf (3) einen sich über die ganze Höhe des Schaltergehäuses (1) erstreckenden, auf einer Seite abgeflachten rohrförmigen Ansatz (2) aufweist, an dessen abgeflachter Seite (13) eine um einen mit einer Rastmulde (16) versehenen Mittelzapfen (15) herum herzförmig ausgebildete Führungsnut (14) vorgesehen ist, in die ein in einer Quernut (10) des Schaltergehäuses (1) beweglich geführter Schieber (11) mit einem an ihm angeformten Zapfen (12) eingreift, daß ferner die Schaltbrücke (21) an einem fest an dem rohrförmigen Ansatz (2) montierbaren, seitlich vorstehenden Tragteil angeordnet und durch die am Druckknopf (3) angreifende Feder (4) in der einen Schaltstellung gegen die am Schaltergehäuse (1) angeordneten Kontakte (8) gedrückt ist.1. Pushbutton switch with at least one switching bridge, which can be moved back and forth between two switching elements by means of a spring-loaded pushbutton (3) which is movably guided in the switch housing, the switching bridge (21) in one position having two contacts (1) fixedly arranged on the switch housing (1) 8) connects and in the other position is lifted from these contacts (8), in which switch the switching bridge (21) can also be brought into its locking position and the other time into its unlocking position by means of a locking element which, when the push button (3) is pressed is held in its one switching position, characterized in that the push button (3) has a tubular extension (2) which extends over the entire height of the switch housing (1) and is flattened on one side, and has a flattened side (13) on its flattened side (13) around a heart-shaped guide groove (14) is provided around a center pin (15) provided with a locking trough (16), i n which engages in a transverse groove (10) of the switch housing (1) movably guided slide (11) with a pin (12) molded on it, that furthermore the switching bridge (21) on a fixed to the tubular extension (2), laterally projecting support part and is pressed by the spring (4) acting on the push button (3) in one switching position against the contacts (8) arranged on the switch housing (1). 2. Druckknopfschalter nach Anspruch 1, dadurch gekennzeichnet , daß die herzförmige Führungsnut (14) an ihrer unteren Spitze schlitzartig verlängert ist, wobei die Länge des Schlitzes (18) so bemessen ist, daß die Schaltbrücke (21) zur Anlage an den gehäusefesten Kontakten (8) kommt, ohne daß der Zapfen (12) des Schiebers (11) am Ende des Schlitzes (18) anliegt.2. Push button switch according to claim 1, characterized in that the heart-shaped guide groove (14) is elongated at its lower tip, the length of the slot (18) being dimensioned such that the switching bridge (21) for contact with the contacts fixed to the housing ( 8) comes without the pin (12) of the slide (11) abutting the end of the slot (18). 3. Druckknopfschalter nach Anspruch 1 oder 2, dadurch gekennzeichnet , daß als Feder eine Schraubenfeder (4) konzentrisch auf dem rohrförmigen Ansatz (2) angeordnet und mit ihrem einen Ende an einem vorspringenden Rand (5) des Druckknopfes (3) und mit ihrem anderen Ende in einer kreisförmigen Vertiefung (6) des Schaltergehäuses (1) abgestützt ist.3. push button switch according to claim 1 or 2, characterized in that as a spring, a coil spring (4) arranged concentrically on the tubular extension (2) and with one end on a projecting edge (5) of the push button (3) and with its other End is supported in a circular recess (6) of the switch housing (1). 4. Druckknopfschalter nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet , daß das Tragteil und die Schaltbrücke (21) einteilig als T-förmiges Kontaktstück (20) ausgebildet sind, wobei der T-Balken die Schaltbrücke (21) bildet und das T-förmige Kontaktstück (20) mit seinem Schaft (22) in einen durch beide Wände des rohrförmigen Ansatzes (2) hindurchgehenden Querschlitz (19) eingesteckt und mittels einer am Schaft (22) vorgesehenen Rastzunge (23) im Hohlraum (24) des rohrförmigen Ansatzes (2) verrastet ist.4. push button switch according to claim 1, 2 or 3, characterized in that the supporting part and the switching bridge (21) are integrally formed as a T-shaped contact piece (20), the T-bar forming the switching bridge (21) and the T- Shaped contact piece (20) with its shaft (22) inserted into a transverse slot (19) passing through both walls of the tubular extension (2) and by means of a latching tongue (23) provided on the shaft (22) in the cavity (24) of the tubular extension ( 2) is locked.
EP84116146A 1984-03-15 1984-12-21 Push button switch with at least one bridge contact Expired EP0157002B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3409572 1984-03-15
DE19843409572 DE3409572A1 (en) 1984-03-15 1984-03-15 PUSHBUTTON SWITCH WITH AT LEAST ONE SWITCHING BRIDGE

Publications (2)

Publication Number Publication Date
EP0157002A1 true EP0157002A1 (en) 1985-10-09
EP0157002B1 EP0157002B1 (en) 1988-05-11

Family

ID=6230625

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84116146A Expired EP0157002B1 (en) 1984-03-15 1984-12-21 Push button switch with at least one bridge contact

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EP (1) EP0157002B1 (en)
DE (3) DE8408000U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101256904B (en) * 2006-12-27 2011-01-12 株式会社东海理化电机制作所 Switch apparatus

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB502943A (en) * 1937-09-02 1939-03-28 Asea Ab Arrangement of contacts for electrical switches
CH329893A (en) * 1955-02-18 1958-05-15 Bbc Brown Boveri & Cie Electrical contact with double break
FR2089244A5 (en) * 1970-04-07 1972-01-07 Electronic Components Ab
FR2217785A1 (en) * 1973-02-08 1974-09-06 Oak Industries Inc
FR2266947A1 (en) * 1974-04-08 1975-10-31 Kautt & Bux Kg
DE2722813B1 (en) * 1977-05-20 1978-09-07 Petrick Gmbh Elektro Mech Slide button
FR2473221A1 (en) * 1979-12-21 1981-07-10 Preh Elektro Feinmechanik High current switch with plunger operating arm - has contacts swung by bridging piece with arm guided by channels in plunger

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB502943A (en) * 1937-09-02 1939-03-28 Asea Ab Arrangement of contacts for electrical switches
CH329893A (en) * 1955-02-18 1958-05-15 Bbc Brown Boveri & Cie Electrical contact with double break
FR2089244A5 (en) * 1970-04-07 1972-01-07 Electronic Components Ab
FR2217785A1 (en) * 1973-02-08 1974-09-06 Oak Industries Inc
FR2266947A1 (en) * 1974-04-08 1975-10-31 Kautt & Bux Kg
DE2722813B1 (en) * 1977-05-20 1978-09-07 Petrick Gmbh Elektro Mech Slide button
FR2473221A1 (en) * 1979-12-21 1981-07-10 Preh Elektro Feinmechanik High current switch with plunger operating arm - has contacts swung by bridging piece with arm guided by channels in plunger

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN, Band 22, Nr. 10, März 1980, Seite 4630, New York, US; T.M. PAULSON: "Alternate-action key module" *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101256904B (en) * 2006-12-27 2011-01-12 株式会社东海理化电机制作所 Switch apparatus

Also Published As

Publication number Publication date
DE3409572A1 (en) 1985-09-19
EP0157002B1 (en) 1988-05-11
DE3471198D1 (en) 1988-06-16
DE8408000U1 (en) 1986-01-16

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