EP0827167B1 - Electric switch particularly for vehicles - Google Patents

Electric switch particularly for vehicles Download PDF

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Publication number
EP0827167B1
EP0827167B1 EP96113712A EP96113712A EP0827167B1 EP 0827167 B1 EP0827167 B1 EP 0827167B1 EP 96113712 A EP96113712 A EP 96113712A EP 96113712 A EP96113712 A EP 96113712A EP 0827167 B1 EP0827167 B1 EP 0827167B1
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EP
European Patent Office
Prior art keywords
contact
switch
parts
makers
pieces
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP96113712A
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German (de)
French (fr)
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EP0827167A1 (en
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Methode Electronics Malta Ltd
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Merit-Malta Methode Ltd
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Publication date
Application filed by Merit-Malta Methode Ltd filed Critical Merit-Malta Methode Ltd
Priority to EP96113712A priority Critical patent/EP0827167B1/en
Priority to DE59610456T priority patent/DE59610456D1/en
Priority to US08/919,034 priority patent/US6124556A/en
Publication of EP0827167A1 publication Critical patent/EP0827167A1/en
Application granted granted Critical
Publication of EP0827167B1 publication Critical patent/EP0827167B1/en
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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
    • H01H13/02—Details
    • H01H13/023—Light-emitting indicators
    • 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 an electrical switch, especially for vehicles, with a variety of pen-like Contact parts that are parallel to each other in the switch housing standing in the same direction and in groups can be connected to different potentials.
  • Such switches or buttons can in particular as Main switch in different vehicle types and devices e.g. for airplanes, motor vehicles, tractors, lifting machines or conveyor systems. It is common, e.g. one To design main switches for tractors as pushbutton switches, with a large number of contact parts in groups is interconnected, in which the individual contact parts in several groups of the same potential are electrically summarized and in which the various Groups of the circularly distributed contact parts to different Potentials can be connected.
  • the single ones Contact parts of a group are designed differently and accordingly have different switching functions on.
  • the contact parts extend essentially in the Axis direction of the switch and are radially deflectable. she can be contacted with fixed contact pieces that are outside a switch housing in plug contacts for one Cable connector ends.
  • the contact parts are designed so that in the different switch positions the contacts to the fixed contact pieces either opened or closed or are always closed for potential supply.
  • the single ones Contact parts in each group are from one another Angle of 90 ° to the axis segment extending ring segment bent and together with this form a contact segment, whose ring segment with an axially displaceable plunger e.g. is firmly connected by rivets.
  • switches are used for different types of tractors used, each a different configuration of the condition individual groups of the contact parts, each in essentially the number and type of each group summarized contact parts vary. This means that for each tractor version with different switching functions its own switch with specially trained contact groups must be manufactured. A manufacturer for such switches can therefore be required a large variety of create differently configured contact groups, which is a corresponding multitude of different Punching tools and injection molds require. With every new one Switch type must first new special stamping tools and Injection molds are created whatever the delivery time extended accordingly and what only because of the high cost higher quantities comes into question.
  • US-A-3,794,794 discloses an electrical switch the features of the preamble of claim 1 includes.
  • One problem is that different Switch types with different switching schemes not without own tools can be created. The one here the time required is relatively large.
  • the invention is therefore based on the object Tool effort in the production of different Reduce contact groups.
  • the different contact groups do not have to be on Tappets are attached, but can be used together with the Intermediate layers stacked and e.g. by means of a Locking disc can be fixed in the switch. This simplifies the Installation of the contact groups considerably. Another advantage is that for everyone configured differently Contact groups can use the same tools. New switch types can be manufactured in the shortest possible time without having to create new tools.
  • the annular discs make it possible arrange the contact parts in a circular distribution so that the Contact parts in any distribution to the individual contact groups can be assigned.
  • the separate contact pieces according to claim 2 can be different Have switching functions and in any Distribution to the contact parts designed as contact bearings be scheduled.
  • the contact pieces are designed that in the starting position of the ram from the fixed contact pieces separated or contacted with them are. In the functional position of the plunger are then Switching functions interchanged.
  • the contact parts according to claim 5 can with appropriate Equipped with the switching pieces any switching functions can be assigned without requiring any special tooling requirement.
  • the connectors according to claim 6 serve the potential supply and set regardless of the switch position of the Plunger a permanent connection between the plug contacts the fixed contact pieces and the contact parts. They are compatible with the contact blocks and can therefore can be placed anywhere.
  • a switch for a tractor has a switch housing 1, a push button 2 and plug contacts 3 for a cable connector.
  • the push button 2 is arranged on the operating side of the substantially cylindrical switch housing 1 on the end face coaxially.
  • the plug contacts 3 for the cable connector are located on the rear of the switch housing 1 opposite the push button 2.
  • the switch housing 1 is provided with a thread 4 for a nut for screwing with a body part, not shown.
  • An elastomeric bellows 6 for sealing the housing is attached between a transparent control button 5 of the pushbutton 2 and the switch housing 1.
  • Fig. 2 consists of an upper and a lower figure. The two switch positions of the switch are shown schematically. Three separate circuits are routed via the switch, which can have different voltage potentials. The arrows pointing upward indicate the incoming plug contacts 3, via which the voltage potentials are supplied. These are switchably connected in the switch via contact devices to the outgoing plug contacts 3, which are marked by the downward-pointing arrows.
  • the contact devices point to the outgoing plug contacts 3 assigned contact parts designed as contact bearings 15 and contact pieces 13 articulated thereon, whose switching position by adjusting an actuator, like a plunger 8, changed at the same time can be.
  • a subset of the switching pieces 13 is designed that they are in the rest position of the actuator are connected to the associated plug contacts, while the connection to the other contact pieces 13 the associated plug contacts is interrupted.
  • the incoming Plug contacts 3 are compatible with the contact pieces 13 Associated connectors 21 by the actuator cannot be recorded and which are independent of the position of the actuator in the closed Switch position remain.
  • the three contact parts 15 arranged on the left are closed here a contact group 16 summarized, which together with the associated switching pieces 13 and plug contacts 3 a Form two-way switch in which the two outgoing plug contacts 3 alternately with the incoming plug contact 3 are connected.
  • the remaining contact parts 15 are two further contact groups 16 summarized together with the associated switching pieces 13 and the connecting pieces 21 form two on and off switches, one each open and the other is closed.
  • an electric light bulb 7 is used as an illuminated display inside the push button 2.
  • the push button 2 is connected to a plunger 8 on which an indexing pin 9 of a fixing device 10 with an overtravel release is pivotally attached.
  • the fixing device 10 serves to fix the push button with the plunger in two different displacement positions, which correspond to two different switching positions. By omitting the indexing pin 9, the switch can be converted into a simple button.
  • the plug contacts 3 are components of fixed contact pieces 27, from the rear of the switch housing 1 ago protrude into its interior and there contact points 11 for contact rivets 12 of the movably mounted contact pieces 13 form. These extend essentially in the longitudinal direction of the switch along an outer wall of the switch housing 1. Your other end is bent inwards and forms a holding leg 24, with which it is used as a contact bearing trained contact parts 15 of the contact groups 16 are hooked in contact.
  • the switching pieces 13 and the Contact parts 15 are for easier assembly in a cage-like stored separate housing part 32.
  • the contact groups 16 shown in more detail in FIG. 7 each consist of an annular contact disk 17 and at least two of the contact parts 15, which extend in the longitudinal direction of the switch and are bent perpendicular to the contact disk 17.
  • Several of the contact disks 17 are stacked and fixed one above the other with insulating intermediate layers 18 in the axial direction of the switch in the switch housing 1, the contact parts 15 of the different contact groups 16 complementing one another to form a circular arrangement.
  • the contact parts 15 of the other contact group 16 are omitted at the points at which the contact parts 15 of one contact group 16 are arranged.
  • thin spring washers 19 are inserted between the contact disks 17 and the intermediate layers 18, which are contacted by means of resilient contact arms 20 with sliding contacts 14 of the incandescent lamp 7.
  • the contact parts 15 are radial before bending Contact disks 17 from. Each of these boards is original with all contact parts 15 for each of the maximum possible circular positions. At this stage, with With the help of a simple cutting tool, the contact parts 15 e.g. successively cut off at positions are located on which contact parts 15 in the other two Contact groups are provided. So there are only those Contact parts left in positions which the other contact groups have no contact parts 15. After bending the contact parts 15 in the direction On the operator side, the contact groups are in the switch housing 1 inserted and fixed in a row. The contact parts 15 of all contact groups 16 then together form one circular row which corresponds to the arrangement of the plug contacts 3 on the back of the case.
  • the contact parts 15 have a widened heel with stop shoulders at the foot end 31 and laterally opposite recesses 22 on the width of the contact part 15 decrease this point.
  • the spacing of the shoulder shoulders 31 to the associated contact disks 17 are different large and held so that all stop shoulders 31 in lie on one level.
  • the rest of the contact parts 15 is used to guide helical compression springs 23 between the switch housing 1 and the holding legs 24 clamped are.
  • the shape of the switching pieces 13 and the connecting pieces 21 can also be seen from FIG. 7. They point to theirs Contact rivets 12 facing away from the inside bent Holding leg 24 on. These are open to the side Breakthrough 25 provided for the contact parts 15.
  • the width the opening 25 is adapted to the width of the contact part 15.
  • the width of the lateral opening of the opening 25 is the width of the contact part 15 at the recess 22 customized.
  • the holding leg 24 is initially the same Height brought with the recess of the contact part 15 and transversely moved so far against the contact part 15 that whose section with reduced width in the breakthrough 25 arrives. Then the holding leg 24 by the attached Helical compression spring 23 against the stop shoulders 31 pressed. In this position, the width of the breakthrough 25 located section of the contact part 15 larger than the width of the side opening, so that the switching piece 13 or the connecting piece 21 in a form-fitting manner on the contact part is held. However, this fixation is so compliant that the switching piece 13 or connector 21 is articulated is radially pivoted.
  • the plunger 8 according to FIG. 3 is assigned a drive part designed as a toothed ring 28, which has radially directed switching shoulders 29 on its outside.
  • the switching pieces 13 have inwardly curved cam-like projections 30 which protrude into the displacement path of the switching shoulders 29. If these are at the level of the projections 30, the switching pieces 13 are deflected outward and lifted from the contact points 11 of the fixed contact pieces 27, whereby the electrical connection is interrupted.
  • the projection 30 is located at a point which is only reached by the switching shoulder 29 when the plunger 8 is pressed in. This functional position is shown in Fig. 4.
  • the contact piece 13 is lifted off the fixed contact piece 27 here.
  • the projection 30 is released again and the contact is closed.
  • Fig. 5 shows a partial section through the switch in another angular plane.
  • this there is another contact piece 13 with the reverse switching function.
  • the projection 30 is arranged here so that the switching piece 13 is lifted from the fixed contact piece 27 in the starting position and the contact is interrupted.
  • the plunger 8 is pushed forward into the functional position of the switching shoulder 29 indicated by dash-dotted lines, the projection 30 is released and the contact is closed.
  • Fig. 6 shows another partial section, which exposes the connecting piece 21. This has no protrusion and therefore remains in the closed switch position in both positions of the plunger.

Description

Die Erfindung bezieht sich auf einen elektrischen Schalter, insbesondere für Fahrzeuge, mit einer Vielzahl von stiftartigen Kontaktteilen, die im Schaltergehäuse parallel zueinander stehend in die gleiche Richtung ragen und gruppenweise an unterschiedliche Potentiale anschließbar sind.The invention relates to an electrical switch, especially for vehicles, with a variety of pen-like Contact parts that are parallel to each other in the switch housing standing in the same direction and in groups can be connected to different potentials.

Derartige Schalter oder Tasten können insbesondere als Hauptschalter in unterschiedlichen Fahrzeugarten und Geräten z.B. bei Flugzeugen, Kraftwagen, Traktoren, Lasthebemaschinen oder Förderanlagen dienen. Es ist üblich, z.B. einen Hauptschalter für Traktoren als Drucktastschalter auszubilden, bei dem eine Vielzahl von Kontaktteilen gruppenweise miteinander verbunden ist, bei dem die einzelnen Kontaktteile in mehreren Gruppen von jeweils gleichem Potential elektrisch zusammengefaßt sind und bei dem die verschiedenen Gruppen der kreisförmig verteilten Kontaktteile an unterschiedliche Potentiale anschließbar sind. Die einzelnen Kontaktteile einer Gruppe sind unterschiedlich ausgebildet und weisen entsprechend unterschiedliche Schaltfunktionen auf. Such switches or buttons can in particular as Main switch in different vehicle types and devices e.g. for airplanes, motor vehicles, tractors, lifting machines or conveyor systems. It is common, e.g. one To design main switches for tractors as pushbutton switches, with a large number of contact parts in groups is interconnected, in which the individual contact parts in several groups of the same potential are electrically summarized and in which the various Groups of the circularly distributed contact parts to different Potentials can be connected. The single ones Contact parts of a group are designed differently and accordingly have different switching functions on.

Die Kontaktteile erstrecken sich im wesentlichen in der Achsrichtung des Schalters und sind radial auslenkbar. Sie sind mit festen Kontaktstücken kontaktierbar, die außerhalb eines Schaltergehäuses in Steckkontakten für einen Kabelstecker enden. Die Kontaktteile sind so ausgebildet, dass in den verschiedenen Schaltstellungen die Kontakte zu den festen Kontaktstücken entweder geöffnet oder geschlossen oder zur Potentialzufuhr immer geschlossen sind. Die einzelnen Kontaktteile jeweils einer Gruppe sind von einem sich im Winkel von 90° zur Achsrichtung erstreckenden Ringsegment abgebogen und bilden zusammen mit diesem ein Kontaktsegment, dessen Ringsegment mit einem axial verschiebbaren Stößel z.B. durch Nieten fest verbunden ist.The contact parts extend essentially in the Axis direction of the switch and are radially deflectable. she can be contacted with fixed contact pieces that are outside a switch housing in plug contacts for one Cable connector ends. The contact parts are designed so that in the different switch positions the contacts to the fixed contact pieces either opened or closed or are always closed for potential supply. The single ones Contact parts in each group are from one another Angle of 90 ° to the axis segment extending ring segment bent and together with this form a contact segment, whose ring segment with an axially displaceable plunger e.g. is firmly connected by rivets.

Derartige Schalter werden für unterschiedliche Traktortypen verwendet, die jeweils eine unterschiedliche Konfiguration der einzelnen Gruppen der Kontaktteile bedingen, wobei jeweils im wesentlichen die Anzahl und Typ der in den einzelnen Gruppen zusammengefassten Kontaktteile variieren. Dies bedeutet, dass für jede Traktorversion mit unterschiedlichen Schaltfunktionen ein eigener Schalter mit speziell ausgebildeten Kontaktgruppen hergestellt werden muß. Ein Hersteller für derartige Schalter kann somit genötigt sein, eine große Vielzahl von unterschiedlich konfigurierten Kontaktgruppen herzustellen, die eine entsprechende Vielzahl von unterschiedlichen Stanzwerkzeugen und Spritzformen erfordern. Bei jedem neuen Schaltertyp müssen zunächst neue spezielle Stanzwerkzeuge und Spritzformen geschaffen werden, was die Lieferfrist entsprechend verlängert und was wegen der hohen Kosten nur bei höheren Stückzahlen in Frage kommt. Such switches are used for different types of tractors used, each a different configuration of the condition individual groups of the contact parts, each in essentially the number and type of each group summarized contact parts vary. This means that for each tractor version with different switching functions its own switch with specially trained contact groups must be manufactured. A manufacturer for such switches can therefore be required a large variety of create differently configured contact groups, which is a corresponding multitude of different Punching tools and injection molds require. With every new one Switch type must first new special stamping tools and Injection molds are created whatever the delivery time extended accordingly and what only because of the high cost higher quantities comes into question.

Aus der US-A-3,794,794 geht ein elektrischer Schalter hervor, der die Merkmale des Oberbegriffs des Patentanspruches 1 umfaßt. Ein Problem besteht dabei darin, dass verschiedene Schaltertypen mit unterschiedlichen Schaltschemata nicht ohne eigene Werkzeuge geschaffen werden können. Der hierbei erforderliche Zeitaufwand ist relativ groß.US-A-3,794,794 discloses an electrical switch the features of the preamble of claim 1 includes. One problem is that different Switch types with different switching schemes not without own tools can be created. The one here the time required is relatively large.

Der Erfindung liegt daher die Aufgabe zugrunde, den Werkzeugaufwand bei der Herstellung unterschiedlicher Kontaktgruppen zu verringern. The invention is therefore based on the object Tool effort in the production of different Reduce contact groups.

Diese Aufgabe wird durch die im Anspruch 1 gekennzeichneten Merkmale gelöst. Bei der Herstellung der einzelnen Kontaktgruppen wird zunächst eine universelle Platine ausgeschnitten, die die maximal mögliche Anzahl der in der Materialebene abstehenden Kontaktteile aufweist. In diesem Stadium werden alle nicht benötigten Kontaktteile mittels eines einfachen Werkzeugs z.B. sukzessive abgeschnitten. Danach werden die verbliebenen Kontaktteile senkrecht abgebogen. Die verschiedenen Kontaktgruppen sind so konfiguriert, daß an jeder Stelle nur ein Kontaktteil vorhanden ist.This object is characterized by those in claim 1 Features resolved. When making the individual contact groups a universal board is first cut out, which is the maximum number possible in the material level protruding contact parts. In this stadium are all unnecessary contact parts by means of a simple tools e.g. cut off successively. After that the remaining contact parts are bent vertically. The different contact groups are configured so that there is only one contact part at each point.

Die verschiedenen Kontaktgruppen müssen nicht einzeln am Stößel befestigt werden, sondern können zusammen mit den Zwischenlagen übereinandergestapelt und z.B. mittels einer Rastscheibe im Schalter fixiert werden. Dies vereinfacht die Montage der Kontaktgruppen erheblich. Ein weiterer Vorteil besteht darin, daß für alle unterschiedlich konfigurierten Kontaktgruppen die gleichen Werkzeuge verwendet werden können. Neue Schaltertypen können in kürzester Frist gefertigt werden, ohne daß dazu neue Werkzeuge geschaffen werden müssen.The different contact groups do not have to be on Tappets are attached, but can be used together with the Intermediate layers stacked and e.g. by means of a Locking disc can be fixed in the switch. This simplifies the Installation of the contact groups considerably. Another advantage is that for everyone configured differently Contact groups can use the same tools. New switch types can be manufactured in the shortest possible time without having to create new tools.

Die ringförmigen Scheiben machen es möglich, die Kontaktteile kreisförmig verteilt anzuordnen, so daß die Kontaktteile in beliebiger Aufteilung den einzelnen Kontaktgruppen zugeordnet werden können.The annular discs make it possible arrange the contact parts in a circular distribution so that the Contact parts in any distribution to the individual contact groups can be assigned.

Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den in den Ansprüchen 2 bis 8 gekennzeichneten Merkmalen.Advantageous further developments of the invention result from the features characterized in claims 2 to 8.

Die separaten Schaltstücke nach Anspruch 2 können unterschiedliche Schaltfunktionen aufweisen und in beliebiger Verteilung an die als Kontaktlager ausgebildeten Kontaktteile angesetzt werden. Die Schaltstücke sind so ausgebildet, daß sie in der Ausgangsstellung des Stößels von den festen Kontaktstücken getrennt bzw. mit diesen kontaktiert sind. In der Funktionsstellung des Stößels sind dann ihre Schaltfunktionen vertauscht.The separate contact pieces according to claim 2 can be different Have switching functions and in any Distribution to the contact parts designed as contact bearings be scheduled. The contact pieces are designed that in the starting position of the ram from the fixed contact pieces separated or contacted with them are. In the functional position of the plunger are then Switching functions interchanged.

Durch die Weiterbildungen nach den Ansprüchen 3 und 4 werden die Schaltstücke radial ausgelenkt und bilden somit Aufsetzkontakte zu den festen Kontaktstücken. Damit wird das Verschieben der Kontaktteile überflüssig.Through the developments according to claims 3 and 4 the contact pieces are radially deflected and thus form touchdown contacts to the fixed contact pieces. This will move of the contact parts unnecessary.

Den Kontaktteilen nach Anspruch 5 können bei entsprechender Bestückung mit den Schaltstücken beliebige Schaltfunktionen zugeordnet werden, ohne daß es dafür eines besonderen Werkzeugaufwandes bedarf.The contact parts according to claim 5 can with appropriate Equipped with the switching pieces any switching functions can be assigned without requiring any special tooling requirement.

Die Verbindungsstücke nach Anspruch 6 dienen der Potentialzufuhr und stellen unabhängig von der Schaltstellung des Stößels eine permanente Verbindung zwischen den Steckkontakten der festen Kontaktstücke und den Kontaktteilen her. Sie sind zu den Schaltstücken kompatibel und können demzufolge an beliebiger Stelle angeordnet werden.The connectors according to claim 6 serve the potential supply and set regardless of the switch position of the Plunger a permanent connection between the plug contacts the fixed contact pieces and the contact parts. They are compatible with the contact blocks and can therefore can be placed anywhere.

Durch die Biegefedern nach Anspruch 7 werden die Federteile von den stromführenden Kontaktteilen getrennt. Dadurch wird vermieden, daß sich die Federteile unter elektrischer Last erwärmen und ihre Federspannung abbauen.By the spiral springs according to claim 7, the spring parts separated from the live contact parts. This will avoided that the spring parts under electrical load warm up and release their spring tension.

Durch die Weiterbildung nach Anspruch 8 können die Schaltstücke bzw. Verbindungsstücke mit ihrem Halteschenkel einfach in die Kontaktteile eingehängt und formschlüssig verriegelt werden. Through the development according to claim 8, the switching pieces or connectors with their holding legs simple hooked into the contact parts and locked in a form-fitting manner become.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen

Fig. 1
eine perspektivische Ansicht eines Hauptschalters für einen Traktor,
Fig. 2
ein im Schalter nach Fig. 1 realisiertes Schaltschema,
Fig. 3
einen vergrößerten axialen Schnitt durch den Schalter nach Fig. 1 in der Ausgangsstellung,
Fig. 4
einen Halbschnitt durch den Schalter nach Fig. 3 in der Funktionsstellung,
Fig. 5
einen Teilschnitt in einer anderen Winkelebene durch den Schalter nach Fig. 1,
Fig. 6
einen Teilschnitt in einer weiteren Winkelebene durch den Schalter nach Fig. 1 und
Fig. 7
eine auseinandergezogene perspektivische Darstellung von Teilen des Schalters nach Fig. 1.
An embodiment of the invention is shown in the drawing and is explained in more detail below. Show it
Fig. 1
a perspective view of a main switch for a tractor,
Fig. 2
1 in the switch according to FIG. 1,
Fig. 3
2 shows an enlarged axial section through the switch according to FIG. 1 in the starting position,
Fig. 4
3 shows a half section through the switch according to FIG. 3 in the functional position,
Fig. 5
2 shows a partial section in another angular plane through the switch according to FIG. 1,
Fig. 6
a partial section in a further angular plane by the switch of FIG. 1 and
Fig. 7
an exploded perspective view of parts of the switch of FIG. 1st

Nach Fig. 1 weist ein Schalter für einen Traktor ein Schaltergehäuse 1, eine Drucktaste 2 und Steckkontakte 3 für einen Kabelstecker auf. Die Drucktaste 2 ist auf der Bedienungsseite des im wesentlichen zylindrischen Schaltergehäuses 1 stirnseitig koaxial verschiebbar angeordnet. Die Steckkontakte 3 für den Kabelstecker befinden sich auf der der Drucktaste 2 gegenüberliegenden Rückseite des Schaltergehäuses 1. Das Schaltergehäuse 1 ist mit einem Gewinde 4 für eine Mutter zum Verschrauben mit einem nicht dargestellten Karosserieteil versehen. Zwischen einem transparenten Bedienknopf 5 der Drucktaste 2 und dem Schaltergehäuse 1 ist ein elastomerer Balg 6 zur Gehäuseabdichtung angebracht. 1 , a switch for a tractor has a switch housing 1, a push button 2 and plug contacts 3 for a cable connector. The push button 2 is arranged on the operating side of the substantially cylindrical switch housing 1 on the end face coaxially. The plug contacts 3 for the cable connector are located on the rear of the switch housing 1 opposite the push button 2. The switch housing 1 is provided with a thread 4 for a nut for screwing with a body part, not shown. An elastomeric bellows 6 for sealing the housing is attached between a transparent control button 5 of the pushbutton 2 and the switch housing 1.

Fig. 2 besteht aus einer oberen und einer unteren Teilfigur. Darin sind die beiden Schaltstellungen des Schalters schematisch dargestellt. Über den Schalter sind drei getrennte Stromkreise geführt, die unterschiedliche Spannungspotentiale aufweisen können. Dabei kennzeichnen die nach oben weisenden Pfeile die eingehenden Steckkontakte 3, über die die Spannungspotentiale zugeführt werden. Diese sind im Schalter über Kontakteinrichtungen mit den abgehenden Steckkontakten 3 schaltbar verbunden, die durch die abwärtsgerichteten Pfeile markiert sind. Fig. 2 consists of an upper and a lower figure. The two switch positions of the switch are shown schematically. Three separate circuits are routed via the switch, which can have different voltage potentials. The arrows pointing upward indicate the incoming plug contacts 3, via which the voltage potentials are supplied. These are switchably connected in the switch via contact devices to the outgoing plug contacts 3, which are marked by the downward-pointing arrows.

Die Kontakteinrichtungen weisen den abgehenden Steckkontakten 3 zugeordnete, als Kontaktlager ausgebildete Kontaktteile 15 und daran gelenkig gelagerte Schaltstücke 13 auf, deren Schaltstellung durch das Verstellen einer Betätigungseinrichtung, wie eines Stößels 8, gleichzeitig gewechselt werden kann. Eine Teilmenge der Schaltstücke 13 ist so ausgebildet, daß sie in der Ruhestellung der Betätigungseinrichtung mit den zugehörigen Steckkontakten verbunden sind, während bei den anderen Schaltstücken 13 die Verbindung zu den zugehörigen Steckkontakten unterbrochen ist. Den eingehenden Steckkontakten 3 sind zu den Schaltstücken 13 kompatible Verbindungsstücke 21 zugeordnet, die von der Betätigungseinrichtung nicht erfaßt werden und die unabhängig von der Stellung der Betätigungseinrichtung in der geschlossenen Schaltstellung verbleiben.The contact devices point to the outgoing plug contacts 3 assigned contact parts designed as contact bearings 15 and contact pieces 13 articulated thereon, whose switching position by adjusting an actuator, like a plunger 8, changed at the same time can be. A subset of the switching pieces 13 is designed that they are in the rest position of the actuator are connected to the associated plug contacts, while the connection to the other contact pieces 13 the associated plug contacts is interrupted. The incoming Plug contacts 3 are compatible with the contact pieces 13 Associated connectors 21 by the actuator cannot be recorded and which are independent of the position of the actuator in the closed Switch position remain.

Die drei links angeordneten Kontaktteile 15 sind hier zu einer Kontaktgruppe 16 zusammengefaßt, die zusammen mit den zugehörigen Schaltstücken 13 und Steckkontakten 3 einen Wechselschalter bilden, bei dem die beiden abgehenden Steckkontakte 3 abwechselnd mit dem eingehenden Steckkontakt 3 verbunden sind. Die restlichen Kontaktteile 15 sind zu zwei weiteren Kontaktgruppen 16 zusammengefaßt, die zusammen mit den zugehörigen Schaltstücken 13 und den Verbindungsstücken 21 zwei Ein- und Ausschalter bilden, von denen jeweils einer geöffnet und der andere geschlossen ist.The three contact parts 15 arranged on the left are closed here a contact group 16 summarized, which together with the associated switching pieces 13 and plug contacts 3 a Form two-way switch in which the two outgoing plug contacts 3 alternately with the incoming plug contact 3 are connected. The remaining contact parts 15 are two further contact groups 16 summarized together with the associated switching pieces 13 and the connecting pieces 21 form two on and off switches, one each open and the other is closed.

Nach Fig. 3 ist im Inneren der Drucktaste 2 eine elektrische Glühlampe 7 als Leuchtanzeige eingesetzt. Die Drucktaste 2 ist mit einem Stößel 8 verbunden, an dem ein Indexierstift 9 einer Fixiereinrichtung 10 mit Überhubauslösung schwenkbar angesetzt ist. Die Fixiereinrichtung 10 dient dazu, die Drucktaste mit dem Stößel in zwei verschiedenen Verschiebestellungen zu fixieren, die zwei verschiedenen Schaltstellungen entsprechen. Durch Weglassen des Indexierstiftes 9 kann der Schalter in eine einfache Taste umgewandelt werden.According to Fig. 3 , an electric light bulb 7 is used as an illuminated display inside the push button 2. The push button 2 is connected to a plunger 8 on which an indexing pin 9 of a fixing device 10 with an overtravel release is pivotally attached. The fixing device 10 serves to fix the push button with the plunger in two different displacement positions, which correspond to two different switching positions. By omitting the indexing pin 9, the switch can be converted into a simple button.

Die Steckkontakte 3 sind Bestandteile von festen Kontaktstücken 27, die von der Rückseite des Schaltergehäuses 1 her in dessen Innenraum hineinragen und dort Kontaktstellen 11 für Kontaktniete 12 der beweglich gelagerten Schaltstücke 13 bilden. Diese erstrecken sich im wesentlichen in der Längsrichtung des Schalters entlang einer Außenwand des Schaltergehäuses 1. Ihr anderes Ende ist nach innen abgebogen und bildet einen Halteschenkel 24, mit dem sie in die als Kontaktlager ausgebildeten Kontakteile 15 der Kontaktgruppen 16 kontaktgebend eingehängt sind. Die Schaltstücke 13 und die Kontaktteile 15 sind zur einfacheren Montage in einem käfigartigen separaten Gehäuseteil 32 gelagert.The plug contacts 3 are components of fixed contact pieces 27, from the rear of the switch housing 1 ago protrude into its interior and there contact points 11 for contact rivets 12 of the movably mounted contact pieces 13 form. These extend essentially in the longitudinal direction of the switch along an outer wall of the switch housing 1. Your other end is bent inwards and forms a holding leg 24, with which it is used as a contact bearing trained contact parts 15 of the contact groups 16 are hooked in contact. The switching pieces 13 and the Contact parts 15 are for easier assembly in a cage-like stored separate housing part 32.

Die in Fig. 7 näher dargestellten Kontaktgruppen 16 bestehen aus jeweils einer ringartigen Kontaktscheibe 17 und zumindest zwei der Kontaktteile 15, die sich in der Längsrichtung des Schalters erstrecken und senkrecht zur Kontaktscheibe 17 abgebogen sind. Mehrere der Kontaktscheiben 17 sind mit isolierenden Zwischenlagen 18 in der Achsrichtung des Schalters im Schaltergehäuse 1 übereinandergestapelt und fixiert, wobei sich die Kontaktteile 15 der verschiedenen Kontaktgruppen 16 zu einer zirkulären Anordnung ergänzen. Dabei sind an den Stellen, an denen die Kontaktteile 15 der einen Kontaktgruppe 16 angeordnet sind, die Kontaktteile 15 der anderen Kontaktgruppe 16 weggelassen. Zusätzlich sind zwischen den Kontaktscheiben 17 und den Zwischenlagen 18 noch dünne Federscheiben 19 eingelegt, die mittels federnder Kontaktarme 20 mit Schleifkontakten 14 der Glühlampe 7 kontaktiert sind.The contact groups 16 shown in more detail in FIG. 7 each consist of an annular contact disk 17 and at least two of the contact parts 15, which extend in the longitudinal direction of the switch and are bent perpendicular to the contact disk 17. Several of the contact disks 17 are stacked and fixed one above the other with insulating intermediate layers 18 in the axial direction of the switch in the switch housing 1, the contact parts 15 of the different contact groups 16 complementing one another to form a circular arrangement. The contact parts 15 of the other contact group 16 are omitted at the points at which the contact parts 15 of one contact group 16 are arranged. In addition, thin spring washers 19 are inserted between the contact disks 17 and the intermediate layers 18, which are contacted by means of resilient contact arms 20 with sliding contacts 14 of the incandescent lamp 7.

Die Kontaktteile 15 stehen vor dem Biegen radial von den Kontaktscheiben 17 ab. Jede dieser Platinen ist ursprünglich mit allen Kontaktteilen 15 für jede der maximal möglichen zirkulären Positionen versehen. In diesem Stadium werden mit Hilfe eines einfachen Schneidwerkzeuges jeweils die Kontaktteile 15 z.B. sukzessive abgeschnitten, die sich an Positionen befinden, an denen Kontaktteile 15 bei den beiden anderen Kontaktgruppen vorgesehen sind. Es bleiben somit nur die Kontaktteile übrig, die sich an Positionen befinden, an denen die anderen Kontaktgruppen keine Kontaktteile 15 aufweisen. Nach dem Biegen der Kontaktteile 15 in die Richtung der Bedienseite werden die Kontaktgruppen in das Schaltergehäuse 1 hintereinander eingesetzt und fixiert. Die Kontaktteile 15 aller Kontaktgruppen 16 bilden dann zusammen eine kreisförmige Reihe, die der Anordnung der Steckkontakte 3 auf der Rückseite des Gehäuses entspricht.The contact parts 15 are radial before bending Contact disks 17 from. Each of these boards is original with all contact parts 15 for each of the maximum possible circular positions. At this stage, with With the help of a simple cutting tool, the contact parts 15 e.g. successively cut off at positions are located on which contact parts 15 in the other two Contact groups are provided. So there are only those Contact parts left in positions which the other contact groups have no contact parts 15. After bending the contact parts 15 in the direction On the operator side, the contact groups are in the switch housing 1 inserted and fixed in a row. The contact parts 15 of all contact groups 16 then together form one circular row which corresponds to the arrangement of the plug contacts 3 on the back of the case.

Die Kontaktteile 15 weisen, wie in Fig. 7 zu erkennen ist, an ihrem Fußende einen verbreiterten Absatz mit Anschlagschultern 31 und seitlich einander gegenüberliegende Ausnehmungen 22 auf, die die Breite des Kontaktteils 15 an dieser Stelle verringern. Die Abstände der Anschlagschultern 31 zu den zugehörigen Kontaktscheiben 17 sind unterschiedlich groß und so gehalten, daß alle Anschlagschultern 31 in einer Ebene liegen. Der restliche Abschnitt der Kontaktteile 15 dient der Führung von Schraubendruckfedern 23, die zwischen dem Schaltergehäuse 1 und den Halteschenkeln 24 eingespannt sind.As can be seen in FIG. 7, the contact parts 15 have a widened heel with stop shoulders at the foot end 31 and laterally opposite recesses 22 on the width of the contact part 15 decrease this point. The spacing of the shoulder shoulders 31 to the associated contact disks 17 are different large and held so that all stop shoulders 31 in lie on one level. The rest of the contact parts 15 is used to guide helical compression springs 23 between the switch housing 1 and the holding legs 24 clamped are.

Die Gestalt der Schaltstücke 13 und der Verbindungsstücke 21 ist aus Fig. 7 ergänzend erkennbar. Sie weisen an ihrem den Kontaktnieten 12 abgewandten Ende die nach innen abgebogenen Halteschenkel 24 auf. Diese sind mit einem seitlich offenen Durchbruch 25 für die Kontaktteile 15 versehen. Die Breite des Durchbruchs 25 ist der Breite des Kontaktteils 15 angepaßt. Die Weite der seitlichen Öffnung des Durchbruchs 25 ist der Breite des Kontaktteils 15 an der Ausnehmung 22 angepaßt.The shape of the switching pieces 13 and the connecting pieces 21 can also be seen from FIG. 7. They point to theirs Contact rivets 12 facing away from the inside bent Holding leg 24 on. These are open to the side Breakthrough 25 provided for the contact parts 15. The width the opening 25 is adapted to the width of the contact part 15. The width of the lateral opening of the opening 25 is the width of the contact part 15 at the recess 22 customized.

Bei der Montage wird der Halteschenkel 24 zunächst auf gleiche Höhe mit der Ausnehmung des Kontaktteils 15 gebracht und transversal so weit gegen das Kontaktteil 15 bewegt, daß dessen Abschnitt mit verringerter Breite in den Durchbruch 25 gelangt. Sodann wird der Halteschenkel 24 durch die aufgesetzte Schraubendruckfeder 23 gegen die Anschlagschultern 31 gedrückt. In dieser Stellung ist die Breite des im Durchbruch 25 befindlichen Abschnitts des Kontaktteils 15 größer als die Weite der seitlichen Öffnung, so daß das Schaltstück 13 bzw. das Verbindungsstück 21 formschlüssig am Kontaktteil gehalten ist. Diese Fixierung ist jedoch derartig nachgiebig, daß das Schaltstück 13 bzw. Verbindungsstück 21 gelenkartig radial ausschwenkbar gelagert ist.During assembly, the holding leg 24 is initially the same Height brought with the recess of the contact part 15 and transversely moved so far against the contact part 15 that whose section with reduced width in the breakthrough 25 arrives. Then the holding leg 24 by the attached Helical compression spring 23 against the stop shoulders 31 pressed. In this position, the width of the breakthrough 25 located section of the contact part 15 larger than the width of the side opening, so that the switching piece 13 or the connecting piece 21 in a form-fitting manner on the contact part is held. However, this fixation is so compliant that the switching piece 13 or connector 21 is articulated is radially pivoted.

Am anderen Ende des Schaltstücks 13 bzw. des Verbindungsstücks 21 ist mittels des Kontaktniets 12 eine Biegefeder 26 befestigt, die sich am Schaltergehäuse 1 abstützt und das Schaltstück 13 bzw. Verbindungsstück 21 mit dem Kontaktniet 12 gegen die Kontaktstelle 11 des festen Kontaktstücks 27 drückt.At the other end of the contact piece 13 or the connecting piece 21 is a spiral spring 26 by means of the contact rivet 12 attached, which is supported on the switch housing 1 and that Switch piece 13 or connector 21 with the contact rivet 12 against the contact point 11 of the fixed contact piece 27 suppressed.

Dem Stößel 8 nach Fig. 3 ist fest ein als Zahnkranz 28 ausgebildetes Antriebsteil zugeordnet, das an seiner Außenseite radial gerichtete Schaltschultern 29 aufweist. Die Schaltstücke 13 weisen nach innen ausgebogene nockenartige Vorsprünge 30 auf, die in die Verschiebebahn der Schaltschultern 29 ragen. Befinden sich diese in der Höhe der Vorsprünge 30, so werden die Schaltstücke 13 nach außen ausgelenkt und von den Kontaktstellen 11 der festen Kontaktstücke 27 abgehoben, womit die elektrische Verbindung unterbrochen ist.The plunger 8 according to FIG. 3 is assigned a drive part designed as a toothed ring 28, which has radially directed switching shoulders 29 on its outside. The switching pieces 13 have inwardly curved cam-like projections 30 which protrude into the displacement path of the switching shoulders 29. If these are at the level of the projections 30, the switching pieces 13 are deflected outward and lifted from the contact points 11 of the fixed contact pieces 27, whereby the electrical connection is interrupted.

Bei dem in Fig. 3 und 4 dargestellten Schaltstück 13 befindet sich der Vorsprung 30 an einer Stelle, die von der Schaltschulter 29 erst bei eingedrücktem Stößel 8 erreicht wird. Diese Funktionsstellung ist in Fig. 4 dargestellt. Das Schaltstück 13 ist hier vom festen Kontaktstück 27 abgehoben. Beim Zurückziehen des Stößels 8 in die in Fig. 3 dargestellte Ausgangsstellung wird der Vorsprung 30 wieder freigegeben und der Kontakt geschlossen.In the switching piece 13 shown in FIGS. 3 and 4 , the projection 30 is located at a point which is only reached by the switching shoulder 29 when the plunger 8 is pressed in. This functional position is shown in Fig. 4. The contact piece 13 is lifted off the fixed contact piece 27 here. When the plunger 8 is pulled back into the starting position shown in FIG. 3, the projection 30 is released again and the contact is closed.

Fig. 5 zeigt einen Teilschnitt durch den Schalter in einer andern Winkelebene. In dieser befindet sich ein anderes Schaltstück 13 mit umgekehrter Schaltfunktion. Der Vorsprung 30 ist hier so angeordnet, daß das Schaltstück 13 in der Ausgangsstellung vom festen Kontaktstück 27 abgehoben und der Kontakt unterbrochen ist. Beim Vorschieben des Stößels 8 in die strichpunktiert angedeutete Funktionsstellung der Schaltschulter 29 wird der Vorsprung 30 freigegeben und der Kontakt geschlossen. Fig. 5 shows a partial section through the switch in another angular plane. In this there is another contact piece 13 with the reverse switching function. The projection 30 is arranged here so that the switching piece 13 is lifted from the fixed contact piece 27 in the starting position and the contact is interrupted. When the plunger 8 is pushed forward into the functional position of the switching shoulder 29 indicated by dash-dotted lines, the projection 30 is released and the contact is closed.

Fig. 6 zeigt einen anderen Teilschnitt, der das Verbindungsstück 21 freilegt. Dieses hat keinen Vorsprung und bleibt somit in beiden Stellungen des Stößels in der geschlossenen Schaltstellung. Fig. 6 shows another partial section, which exposes the connecting piece 21. This has no protrusion and therefore remains in the closed switch position in both positions of the plunger.

Liste der BezugszeichenList of reference numbers

11
Schaltergehäuseswitch housing
22
Drucktastepushbutton
33
Steckkontaktplug contact
44
Gewindethread
55
Bedienknopfcontrol knob
66
Balgbellows
77
Glühlampelight bulb
88th
Stößeltappet
99
Indexierstiftindexing pin
1010
Fixiereinrichtungfixing
1111
Kontaktstellecontact point
1212
Kontaktnietcontact rivet
1313
Schaltstückswitching piece
1414
Schleifkontaktsliding contact
1515
Kontaktteilcontact part
1616
KontaktgruppeContact group
1717
Kontaktscheibecontact disc
1818
Zwischenlageliner
1919
Federscheibespring washer
2020
Kontaktarmcontact
2121
Verbindungsstückjoint
2222
Ausnehmungrecess
2323
SchraubendruckfederHelical compression spring
2424
Halteschenkelholding leg
2525
Durchbruchbreakthrough
2626
Biegefederbending spring
2727
Kontaktstückcontact piece
2828
Zahnkranzsprocket
2929
Schaltschulterswitching shoulder
3030
Vorsprunghead Start
3131
Anschlagschulternstop shoulders
3232
Gehäuseteilhousing part

Claims (8)

  1. An electric switch, in particular for vehicles, having a plurality of pin-type contact parts (15), which in the switch housing (1) are parallel to one another and protrude in the same direction and can be connected in groups to different potentials, where for each of the potentials a contact disk (17) is provided which supports the associated contact parts (15), where the contact disks (17) have substantially identical dimensions and are disposed stacked above the other and are separated from each other by intermediate layers (18) made from insulating material, where the contact parts (15) of the contact disks (17) are all bent in the same direction and where, at the place where one of the contact disks (17) has a contact part (15), the contact parts (15) are separated from the other contact disks (17),
    characterised in that the contact parts (15) of the various annular contact disks (17) are arranged distributed in a circle,
    in that in the unbent state the contact parts (15) protrude in a star shape from the contact disks (17),
    in that in this state the contact parts (15) not required can be cut off from the contact disks (17), and in that the contact parts (15) that are not separated are bent perpendicularly to the plane of the disks.
  2. A switch according to Claim 1,
    characterised in that movable contact makers (13), which are switchably contacted with fixed contact pieces (27), are joined to the contact parts (15) designed as contact bearings,
    and in that the fixed contact pieces (27) protrude from the switch and in this portion are designed as plug contacts (3) for a cable plug.
  3. A switch according to Claim 1 or 2,
    characterised in that the switch is constructed as a press-button switch having a substantially cylindrical switch housing (1),
    in that the switch comprises a central, axially displaceable slide (8) which is securely connected to a radially protruding actuating part, which is provided with radially protruding switching shoulders (29),
    in that the movable contact makers (13) extend substantially in the longitudinal direction of the switch, and in that the contact makers (13) which are resiliently prestressed against the slide (8) have cam-type projections (30) which are outwardly bent in the direction of the slide (8) and which can be actuated by the switching shoulders (29) of the slide (8) for the radial excursion of the contact makers (13).
  4. A switch according to Claim 3,
    characterised in that the actuating part is constructed as a disk-shaped toothed ring (28), between the teeth of which the switching shoulders (29) are disposed.
  5. A switch according to one of Claims 1 to 4,
    characterised in that several types of contact makers (13) having differently designed and arranged projections (30) are provided, which in the two displacement positions of the slide (8) enable different switching positions.
  6. A switch according to one of Claims 1 to 5,
    characterised in that, additionally to the contact makers (13) or instead of the contact makers, connection pieces that are compatible therewith are provided, which do not have any projections and which for the fixed contact pieces (27) have a closed switching position in each displacement position of the slide (8),
    and in that the connection pieces (21) can be mounted in the same manner as the contact makers (13) and are contacted with the contact pieces (27).
  7. A switch according to one of the preceding Claims,
    characterised in that the contact makers (13) and the connection pieces (21) can be pressed by means of separate cantilever springs (26) against the contact points (11) of the fixed contact pieces (27).
  8. A switch according to one of the preceding Claims,
    characterised in that the contact makers (13), at their ends facing the contact parts (15), have retaining limbs (24) which are inwardly bent towards the switch axis, and which are pressed by means of spiral compression springs (23) against stop shoulders of the contact parts (15),
    in that the width of the contact parts (15) following the stop shoulders is reduced by lateral recesses,
    in that the retaining limbs (24) have a laterally open opening (25) for the contact parts (15), the width of which is adapted to the width of the contact part (15),
    and in that the width of the lateral aperture of the opening (25) is adapted to the width of the contact part (15) at the recess (22).
EP96113712A 1996-08-28 1996-08-28 Electric switch particularly for vehicles Expired - Lifetime EP0827167B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP96113712A EP0827167B1 (en) 1996-08-28 1996-08-28 Electric switch particularly for vehicles
DE59610456T DE59610456D1 (en) 1996-08-28 1996-08-28 Electrical switch, in particular for vehicles
US08/919,034 US6124556A (en) 1996-08-28 1997-08-27 Electrical switch, in particular for vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96113712A EP0827167B1 (en) 1996-08-28 1996-08-28 Electric switch particularly for vehicles

Publications (2)

Publication Number Publication Date
EP0827167A1 EP0827167A1 (en) 1998-03-04
EP0827167B1 true EP0827167B1 (en) 2003-05-21

Family

ID=8223132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96113712A Expired - Lifetime EP0827167B1 (en) 1996-08-28 1996-08-28 Electric switch particularly for vehicles

Country Status (3)

Country Link
US (1) US6124556A (en)
EP (1) EP0827167B1 (en)
DE (1) DE59610456D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6953905B2 (en) * 2002-07-18 2005-10-11 Maxera Llc Electrical switch
ITTO20030463A1 (en) * 2003-06-18 2004-12-19 Olsa Spa SWITCH FOR CEILING LIGHTS.
USD736722S1 (en) * 2014-02-12 2015-08-18 Ching-Hsiung Chu Touch switch
DE102017114227B4 (en) * 2016-09-30 2018-11-29 Defond Components Limited Electrical switch unit for an electrical appliance and electrical appliance
EP3867573A1 (en) 2018-10-18 2021-08-25 Channel Products, Inc. Gas appliance ignition module
USD939456S1 (en) * 2019-10-18 2021-12-28 Channel Products, Inc. Gas appliance ignition switch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3794794A (en) * 1972-11-10 1974-02-26 Ford Motor Co Impact responsive switch with frangible element holding contact plunger in unactivated position
DE2838934C2 (en) * 1978-09-07 1986-07-31 J. & J. Marquardt, 7201 Rietheim-Weilheim Electric switch
US4357589A (en) * 1980-09-15 1982-11-02 Robertshaw Controls Company Temperature responsive electrical switch construction, parts therefor and methods of making the same
US4384176A (en) * 1981-10-30 1983-05-17 Emhart Industries, Inc. Double acting switch
DE3686276T2 (en) * 1985-01-08 1993-03-25 Omron Tateisi Electronics Co PUSH BUTTON SWITCH.

Also Published As

Publication number Publication date
US6124556A (en) 2000-09-26
DE59610456D1 (en) 2003-06-26
EP0827167A1 (en) 1998-03-04

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