EP1239108B1 - Edge switch for closure-edge security - Google Patents

Edge switch for closure-edge security Download PDF

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Publication number
EP1239108B1
EP1239108B1 EP01129046A EP01129046A EP1239108B1 EP 1239108 B1 EP1239108 B1 EP 1239108B1 EP 01129046 A EP01129046 A EP 01129046A EP 01129046 A EP01129046 A EP 01129046A EP 1239108 B1 EP1239108 B1 EP 1239108B1
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EP
European Patent Office
Prior art keywords
contact
edge switch
elements
switch according
edge
Prior art date
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EP01129046A
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German (de)
French (fr)
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EP1239108A2 (en
EP1239108A3 (en
Inventor
André Haake
Oliver Haake
Patrick Haake
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Individual
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Individual
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches
    • H01H3/142—Cushion or mat switches of the elongated strip type
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F15/44—Detection using safety edges responsive to changes in electrical conductivity
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/40—Safety devices, e.g. detection of obstructions or end positions
    • E05F15/42—Detection using safety edges
    • E05F15/44—Detection using safety edges responsive to changes in electrical conductivity
    • E05F2015/447—Detection using safety edges responsive to changes in electrical conductivity using switches in serial arrangement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/14—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch adapted for operation by a part of the human body other than the hand, e.g. by foot
    • H01H3/141—Cushion or mat switches
    • H01H2003/146—Cushion or mat switches being normally closed

Definitions

  • the invention relates to a safety strip as a safety edge according to the preamble of the main claim.
  • a generic safety edge is z. B. in the EP 0 234 523 A2 described.
  • Such a known switching strip consists essentially of "contact elements”, which usually consist of plastic and having a “contact line”, wherein the contact line ends at each contact element “contact points”, whereby the individual contact elements with each other come into contact with each other energetically.
  • These contact elements with their contact lines and contact points are under pretension, which is achieved either by an elastic tube or by an expander cord or by wire-spring arrangements.
  • the contact elements each consist of a contact roller, so they are cylindrical, wherein the contact rollers at the front ends, the contact points creatively abut each other.
  • an expander cord is arranged, which force the individual contact rollers with their contact points in the axial direction to each other.
  • Isolierkeilringe are arranged, which are provided with radially aligned to the Isolierringachse, projecting into the interior of the insulating wedge surfaces between the individual contact rollers.
  • the manufacturing cost of such a switching strip is relatively expensive.
  • the bias depends on the dexterity and the conscientiousness of the operator knotting the expander cords at the ends. So it was not guaranteed a constant bias.
  • the knot at the end of the expander cords is extremely time consuming and requires dexterity and can not be mechanized.
  • EP 0 843 065 A1 shows all the features of the preamble of claim 1 and discloses a generic switch bar, in which the bias of the contact elements is generated by individual pieces of hose.
  • the invention has for its object to provide a switching strip that can be very flat construction fancy and in which a constant bias is ensured by appropriate design of the elastic biasing component.
  • Such elastic flat bands may be formed as a rubber band or as a double fabric with elastofibres or by an elastic strand formed from a plurality of over and under crossing threads.
  • the actual switching strip consists of a contact-receiving element and a clamping plate, wherein fastening elements are provided either on the clamping plate or on the contact-receiving element and are provided on the cooperating counter-element retaining recesses. These fastening elements can engage through the openings provided in the flat strip and lock the two interacting components, namely the contact receiving element with the clamping plate while fixing the elastic flat strip.
  • the procedure is such that the hole spacing in the flat strip is smaller than the spacing of the fastening elements provided on the contact-receiving elements or the clamping plate, so that the flat strip is stretched during assembly and thus the necessary prestressing is produced.
  • the interaction of the fastener with the retaining recess can be done push-button-like or the fastener is mushroom-shaped and can be clipped into the retaining recess.
  • the contact-receiving element or the clamping plate has a protruding fastening element which cooperates with a counter-receptacle in the other component by clamping, d. H. the flat band is pretensioned. Thereafter, contact receiving element and clamping plate are pressed together, whereby the ribbon is clamped positively in the corresponding recess either the contact receiving element or the clamping plate. A corresponding bias of the ribbon is possible via appropriate force measurement.
  • Fig. 1 are designated by 1 and 2, two contact elements consisting of a contact line 5 and each contact points 4 and form a safety edge 3 in the assembly.
  • the contact elements 1 or 2 consist of a contact-receiving element 10 and a clamping plate 6, wherein in the in Fig. 3 illustrated embodiment, the contact receiving element 10 has a fastening element 11 and the clamping plate 6 has a holding recess 14.
  • the fastener 11 is formed like a mushroom and can - as this is particularly clear
  • Fig. 1 shows - pass through the retaining recess 14 and is verclipt with the interposition of an elastic ribbon 8 with the holding recess 14.
  • the elastic bias, with which the contact lines 5 rest against each other at their contact points 4, is achieved by an elastic ribbon 8.
  • flat band 8 are provided in this receiving holes 9, which have a distance a from each other.
  • the distance of the fastening elements 11 from each other has a distance b , wherein the distance a is smaller than the distance b , so that during assembly automatically by the fact that the fasteners 11 pass through the receiving holes 9 of the flat strip 8, the ribbon set under bias is and thus the contact elements 1 and 2 are forced at their contact points 4 under bias to each other.
  • the elastic ribbon 8 may be formed as a rubber band, in which corresponding openings 9 are provided or the elastic ribbon 8 is designed as a double fabric worked band with elasto fibers, whereby an elastic strand can be used, which consists of one or more über-. and crossing threads is formed.
  • Such strands are known in the textile industry including the there already provided holes and are used for example as a holding band in the underwear.
  • the fastening elements 11 and 12 are arranged on the contact receiving elements 10, it is of course also possible to reverse the procedure and to provide the fasteners 11 and 12 on the clamping plate 6.
  • the contact line 5 is formed as a metal strip, the front side of the contact receiving elements 10 engages and forms the contact points 4 here.
  • Both the contact-receiving elements 10 as well as the clamping plates 6 are usually made of plastic.
  • the flat strip 8 Since the hole spacing a of the flat strip 8 is smaller than the distance b between the fastening elements 11 and 12 of the contact receiving elements 10, the flat strip 8 is stretched during assembly and thus produces a fixed, constant bias.

Abstract

The switch rail (3) has a number of contact elements (1,2) arranged in series along the length of the switch rail, with contact points (4) at their facing ends held in contact with one another, the connection between the contact points broken by deformation of the switch rail upon application of an applied external force. The spring bias holding the contact points together is provided by a flat elastic rubber band (8).

Description

Die Erfindung bezieht sich auf eine Sicherheitsleiste als Schaltleiste gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a safety strip as a safety edge according to the preamble of the main claim.

Eine gattungsbildende Schaltleiste wird z. B. in der EP 0 234 523 A2 beschrieben.A generic safety edge is z. B. in the EP 0 234 523 A2 described.

Eine solche bekannte Schaltleiste besteht im wesentlichen aus "Kontaktelementen", die üblicherweise aus Kunststoff bestehen und eine "Kontaktleitung" aufweisen, wobei die Kontaktleitung endseitig an jedem Kontaktelement "Kontaktstellen" aufweist, womit die einzelnen Kontaktelemente untereinander stromführend in Kontakt kommen. Diese Kontaktelemente mit ihren Kontaktleitungen und Kontaktstellen stehen unter Vorspannung, die entweder durch einen elastischen Schlauch oder durch eine Expanderschnur oder durch Draht-Federanordnungen erzielt wird.Such a known switching strip consists essentially of "contact elements", which usually consist of plastic and having a "contact line", wherein the contact line ends at each contact element "contact points", whereby the individual contact elements with each other come into contact with each other energetically. These contact elements with their contact lines and contact points are under pretension, which is achieved either by an elastic tube or by an expander cord or by wire-spring arrangements.

Bei der gattungsbildenden Einrichtung bestehen die Kontaktelemente je aus einer Kontaktrolle, sind also walzenförmig ausgebildet, wobei die Kontaktrollen an den Stirnenden die Kontaktstellen schaffend aneinander anliegen. Im Inneren der Kontaktrollen ist eine Expanderschnur angeordnet, die die einzelnen Kontaktrollen mit ihren Kontaktstellen in axialer Richtung aufeinanderzu zwingen. Zwischen den einzelnen Kontaktrollen sind Isolierkeilringe angeordnet, die mit radial zur Isolierringachse ausgerichteten, in den Innenraum der Isolierringe vorspringenden Keilflächen zwischen den einzelnen Kontaktrollen versehen sind. Der Herstellungsaufwand für eine solche Schaltleiste ist relativ aufwendig. So wurde als nachteilig empfunden, dass die Vorspannung von der Fingerfertigkeit und der Gewissenhaftigkeit der die Expanderschnüre an den Enden verknotenden Bedienungsperson abhängig ist. Es war also keine gleichbleibende Vorspannung garantiert. Das Knoten am Ende der Expanderschnüre ist außerordentlich zeitaufwendig und erfordert Fingerfertigkeit und kann nicht mechanisiert werden.In the generic device, the contact elements each consist of a contact roller, so they are cylindrical, wherein the contact rollers at the front ends, the contact points creatively abut each other. Inside the contact rollers an expander cord is arranged, which force the individual contact rollers with their contact points in the axial direction to each other. Between the individual contact rollers Isolierkeilringe are arranged, which are provided with radially aligned to the Isolierringachse, projecting into the interior of the insulating wedge surfaces between the individual contact rollers. The manufacturing cost of such a switching strip is relatively expensive. Thus, it has been found to be disadvantageous that the bias depends on the dexterity and the conscientiousness of the operator knotting the expander cords at the ends. So it was not guaranteed a constant bias. The knot at the end of the expander cords is extremely time consuming and requires dexterity and can not be mechanized.

Die Montage der Schaltleiste erfordert mehrere Arbeitsgänge.The installation of the safety edge requires several operations.

Zudem kommt bei den mit Expanderschnüren arbeitenden Schaltleisten der Nachteil hinzu, dass die Expanderschnüre eine Stärke von 2 - 3 mm aufweisen, so dass also das eigentliche Kontaktelement relativ hochbauend ausgebildet sein muß. Ein solcher Nachteil tritt besonders dann in Erscheinung, wenn die Schaltleiste für sogenannte Schaltmatten eingesetzt werden soll, wie sie beispielsweise in der EP 421 048 B1 beschrieben sind.In addition, when working with Expanderschnüren switching strips has the disadvantage that the expander cords have a thickness of 2 - 3 mm, so that therefore the actual contact element must be designed relatively high construction. Such a disadvantage occurs especially when the safety edge is to be used for so-called safety mats, as for example in the EP 421 048 B1 are described.

EP 0 843 065 A1 zeigt alle Merkmale des Oberbegriffs des Anspruchs 1 und offenbart eine gattungsbildende Schaltleiste, in der die Vorspannung der Kontaktelemente durch einzelne Schlauchstücke erzeugt wird. EP 0 843 065 A1 shows all the features of the preamble of claim 1 and discloses a generic switch bar, in which the bias of the contact elements is generated by individual pieces of hose.

Der Erfindung liegt die Aufgabe zugrunde, eine Schaltleiste zu schaffen, die sehr flachbauend ausgebilde sein kann und bei der eine gleichbleibende Vorspannung durch entsprechende Konstruktion des die elastische Vorspannung erzielenden Bauteiles gewährleistet wird.The invention has for its object to provide a switching strip that can be very flat construction fancy and in which a constant bias is ensured by appropriate design of the elastic biasing component.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This problem underlying the invention is achieved by the teaching of the main claim.

Vorteilhafte Ausgestaltungen sind in den Unteransprüchen erläutert.Advantageous embodiments are explained in the subclaims.

Mit anderen Worten ausgedrückt wird vorgeschlagen, dass die bisher im Stand der Technik übliche Expanderschnur durch ein elastisches Flachband ersetzt wird, das also nicht mehr die bei Expanderschnüren zwangsläufig gegebene Höhe aufweist.In other words, it is proposed that the usual Expander cord in the prior art is replaced by an elastic flat band, which therefore no longer has the height necessarily given at Expanderschnüren.

Solche elastischen Flachbänder können als Gummiband ausgebildet sein oder als Doppelgewebe mit Elastofasern oder durch eine aus mehreren sich über- und unterkreuzenden Fäden gebildete elastische Litze.Such elastic flat bands may be formed as a rubber band or as a double fabric with elastofibres or by an elastic strand formed from a plurality of over and under crossing threads.

In diese Flachbänder können bei der Herstellung Aufnahmelöcher eingearbeitet werden, die einen gleichbleibenden Abstand aufweisen und zur Aufnahme von Befestigungselementen dienen.In these flat strips can be incorporated in the production receiving holes, which have a constant distance and are used to hold fasteners.

Die eigentliche Schaltleiste besteht aus einem Kontaktaufnahmeelement und einer Klemmplatte, wobei Befestigungselemente entweder an der Klemmplatte oder an dem Kontaktaufnahmeelement vorgesehen sind und an dem damit zusammenarbeitenden Gegenelement Halteausnehmungen vorgesehen sind. Diese Befestigungselemente können durch die in dem Flachband vorgesehenen Öffnungen greifen und verriegeln die beiden zusammenwirkenden Bauteile, nämlich das Kontaktaufnahmeelement mit der Klemmplatte bei gleichzeitiger Festlegung des elastischen Flachbandes.The actual switching strip consists of a contact-receiving element and a clamping plate, wherein fastening elements are provided either on the clamping plate or on the contact-receiving element and are provided on the cooperating counter-element retaining recesses. These fastening elements can engage through the openings provided in the flat strip and lock the two interacting components, namely the contact receiving element with the clamping plate while fixing the elastic flat strip.

Hierbei wird so vorgegangen, dass der Lochabstand in dem Flachband kleiner ist als der Abstand der an den Kontaktaufnahmeelementen oder der Klemmplatte vorgesehenen Befestigungselementen, so dass das Flachband bei der Montage gedehnt wird und dadurch die nötige Vorspannung erzeugt wird.In this case, the procedure is such that the hole spacing in the flat strip is smaller than the spacing of the fastening elements provided on the contact-receiving elements or the clamping plate, so that the flat strip is stretched during assembly and thus the necessary prestressing is produced.

Das Zusammenwirken des Befestigungselementes mit der Halteausnehmung kann druckknopfartig erfolgen oder das Befestigungselement ist pilzkopfartig ausgebildet und ist in die Halteausnehmung einclipbar.The interaction of the fastener with the retaining recess can be done push-button-like or the fastener is mushroom-shaped and can be clipped into the retaining recess.

Es kann aber auch so vorgegangen werden, dass das Kontaktaufnahmeelement oder die Klemmplatte ein vorstehendes Befestigungselement aufweist, das mit einer Gegenaufnahme in dem anderen Bauteil klemmend zusammenwirkt, d. h. das Flachband wird vorgespannt. Danach werden Kontaktaufnahmeelement und Klemmplatte zusammengedrückt, wodurch das Flachband in die entsprechende Vertiefung entweder des Kontaktaufnahmeelementes oder der Klemmplatte formschlüssig eingeklemmt wird. Eine entsprechende Vorspannung des Flachbandes ist über entsprechende Kraftmessung möglich.But it can also be proceeded so that the contact-receiving element or the clamping plate has a protruding fastening element which cooperates with a counter-receptacle in the other component by clamping, d. H. the flat band is pretensioned. Thereafter, contact receiving element and clamping plate are pressed together, whereby the ribbon is clamped positively in the corresponding recess either the contact receiving element or the clamping plate. A corresponding bias of the ribbon is possible via appropriate force measurement.

Zusammenfassend ist festzustellen, dass durch den erfindungsgemäßen Vorschlag einerseits eine flachbauende Ausführung geschaffen wird, andererseits eine einfachere Montage als bisher möglich wird. Weiterhin wird erreicht, dass immer eine gleichbleibende Vorspannung gewährleistet ist und das Knoten am Ende der Expanderschnüre wird vermieden. Die Montage der Schaltleiste und die Erzeugung der Vorspannung erfolgt in einem Arbeitsgang.In summary, it should be noted that on the one hand a flat construction design is created by the proposal according to the invention, on the other hand, a simpler installation than previously possible. Furthermore, it is achieved that always a constant bias is guaranteed and the node at the end of the expander cords is avoided. The assembly of the safety edge and the generation of the bias is done in one operation.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen erläutert. Die Zeichnungen zeigen dabei in

Fig. 1
einen Teil einer Schaltleiste, in
Fig. 2
einen Flachbandabschnitt, in
Fig. 3
den Zusammenbau zwischen Kontaktaufnahmeelement, Flachband und Klemmplatte und in
Fig. 4
eine abgeänderte Ausführungsform.
Embodiments of the invention are explained below with reference to the drawings. The drawings show in
Fig. 1
a part of a safety edge, in
Fig. 2
a flat band section, in
Fig. 3
the assembly between contact receiving element, ribbon and clamping plate and in
Fig. 4
a modified embodiment.

In Fig. 1 sind mit 1 und 2 zwei Kontaktelemente bezeichnet, die aus einer Kontaktleitung 5 und jeweils Kontaktstellen 4 bestehen und im Zusammenbau eine Schaltleiste 3 bilden. Die Kontaktelemente 1 oder 2 bestehen aus einem Kontaktaufnahmeelement 10 und einer Klemmplatte 6, wobei bei dem in Fig. 3 dargestellten Ausführungsbeispiel das Kontaktaufnahmeelement 10 ein Befestigungselement 11 aufweist und die Klemmplatte 6 eine Halteausnehmung 14. Das Befestigungselement 11 ist dabei pilzkopfartig ausgebildet und kann - wie dies besonders deutlich Fig. 1 zeigt - die Halteausnehmung 14 durchqueren und wird unter Zwischenschaltung eines elastischen Flachbandes 8 mit der Halteausnehmung 14 verclipt.In Fig. 1 are designated by 1 and 2, two contact elements consisting of a contact line 5 and each contact points 4 and form a safety edge 3 in the assembly. The contact elements 1 or 2 consist of a contact-receiving element 10 and a clamping plate 6, wherein in the in Fig. 3 illustrated embodiment, the contact receiving element 10 has a fastening element 11 and the clamping plate 6 has a holding recess 14. The fastener 11 is formed like a mushroom and can - as this is particularly clear Fig. 1 shows - pass through the retaining recess 14 and is verclipt with the interposition of an elastic ribbon 8 with the holding recess 14.

Die elastische Vorspannung, mit der die Kontaktleitungen 5 an ihren Kontaktstellen 4 aneinander anliegen, wird durch ein elastisches Flachband 8 erzielt. Bei dem in Fig. 2 dargestellten Flachband 8 sind in diesem Aufnahmelöcher 9 vorgesehen, die einen Abstand a voneinander aufweisen. In Fig. 1 ist dargestellt, dass der Abstand der Befestigungselemente 11 voneinander einen Abstand b aufweist, wobei der Abstand a kleiner ist als der Abstand b, so dass beim Zusammenbau automatisch dadurch, dass die Befestigungselemente 11 die Aufnahmelöcher 9 des Flachbandes 8 durchqueren, das Flachband unter Vorspannung gesetzt wird und damit auch die Kontaktelemente 1 und 2 an ihren Kontaktstellen 4 unter Vorspannung aufeinanderzu gezwungen werden.The elastic bias, with which the contact lines 5 rest against each other at their contact points 4, is achieved by an elastic ribbon 8. At the in Fig. 2 shown flat band 8 are provided in this receiving holes 9, which have a distance a from each other. In Fig. 1 is shown that the distance of the fastening elements 11 from each other has a distance b , wherein the distance a is smaller than the distance b , so that during assembly automatically by the fact that the fasteners 11 pass through the receiving holes 9 of the flat strip 8, the ribbon set under bias is and thus the contact elements 1 and 2 are forced at their contact points 4 under bias to each other.

Bei dem Ausführungsbeispiel gemäß Fig. 4 sind in dem Kontaktaufnahmeelement 10 Vorsprünge vorgesehen, die die Befestigungselemente 12 bilden, wobei in der Klemmplatte 6 entsprechende Vertiefungen vorgesehen sind, die eine Klemmaufnahme 15 in Verbindung mit dem Befestigungselement 12 und dem Flachband 8 schaffen. Bei diesem Ausführungsbeispiel durchqueren also die Befestigungselemente 12 das Flachband 8 nicht, sondern das Flachband 8 wird vorgespannt und danach werden das Kontaktaufnahmeelement 10 und die Klemmplatte 6 zusammengedrückt. Hierdurch wird das Flachband in der Klemmaufnahme 15 formschlüssig geklemmt, so dass kein Loch in dem elastischen Flachband 8 vorgesehen werden muß. Die erforderliche Vorspannung des Flachbandes 8 wird hierbei über eine Kraftmessvorrichtung ermöglicht.In the embodiment according to Fig. 4 10 projections are provided in the contact receiving element, which form the fastening elements 12, wherein in the clamping plate 6 corresponding recesses are provided which provide a clamping receptacle 15 in connection with the fastening element 12 and the ribbon 8. In this embodiment, so the fasteners 12 do not pass through the ribbon 8, but the ribbon 8 is biased and then the contact receiving element 10 and the clamping plate. 6 pressed together. As a result, the flat strip is clamped positively in the clamp receptacle 15, so that no hole in the elastic ribbon 8 must be provided. The required bias of the flat strip 8 is made possible by a force measuring device.

Das elastische Flachband 8 kann als Gummiband ausgebildet sein, in dem entsprechende Öffnungen 9 vorgesehen werden oder das elastische Flachband 8 ist als ein als Doppelgewebe gearbeitetes Band ausgebildet mit Elastofasern, wobei auch eine elastische Litze eingesetzt werden kann, die aus einem oder mehreren sich über- und unterkreuzenden Fäden gebildet wird. Solche Litzen sind in der Textilindustrie einschl. der dort bereits vorgesehenen Löcher bekannt und werden beispielsweise als Halteband in der Unterwäsche eingesetzt.The elastic ribbon 8 may be formed as a rubber band, in which corresponding openings 9 are provided or the elastic ribbon 8 is designed as a double fabric worked band with elasto fibers, whereby an elastic strand can be used, which consists of one or more über-. and crossing threads is formed. Such strands are known in the textile industry including the there already provided holes and are used for example as a holding band in the underwear.

Während in der voraufgehenden Figurenbeschreibung die Befestigungselemente 11 und 12 an den Kontaktaufnahmeelementen 10 angeordnet sind, ist es selbstverständlich auch möglich, umgekehrt vorzugehen und die Befestigungselemente 11 und 12 an der Klemmplatte 6 vorzusehen. Die Kontaktleitung 5 ist als Metallstreifen ausgebildet, die stirnseitig die Kontaktaufnahmeelemente 10 übergreift und hier die Kontaktstellen 4 bildet. Sowohl die Kontaktaufnahmeelemente 10 wie auch die Klemmplatten 6 bestehen üblicherweise aus Kunststoff. Beim Zusammenbau der eigentlichen Schaltleiste 3 wird gegenüber den zum Stand der Technik gehörenden Einrichtungen ein wesentlich vereinfachter Montageaufwand erreicht und es wird eine gleichbleibende Vorspannung gewährleistet, die unabhängig von der manuellen Fertigkeit der die Schaltleiste 3 zusammenbauenden Person ist. Ein Verknoten oder sonstiges Festlegen des elastischen Flachbandes 8 ist nicht mehr erforderlich und die Montage der Schaltleiste und die Erzeugung der Vorspannung erfolgen in einem Arbeitsgang.While in the preceding figure description, the fastening elements 11 and 12 are arranged on the contact receiving elements 10, it is of course also possible to reverse the procedure and to provide the fasteners 11 and 12 on the clamping plate 6. The contact line 5 is formed as a metal strip, the front side of the contact receiving elements 10 engages and forms the contact points 4 here. Both the contact-receiving elements 10 as well as the clamping plates 6 are usually made of plastic. When assembling the actual switching strip 3, a much simplified installation effort is achieved compared to the state of the art facilities and it is ensured a constant bias, which is independent of the manual skill of the safety edge 3 assembling person. A knotting or otherwise setting the elastic ribbon 8 is no longer necessary and the assembly of the switching strip and the generation of the bias done in one operation.

Da der Lochabstand a des Flachbandes 8 kleiner ist als der Abstand b zwischen den Befestigungselementen 11 und 12 der Kontaktaufnahmeelemente 10, wird das Flachband 8 bei der Montage gedehnt und damit eine festliegende, gleichbleibende Vorspannung erzeugt.Since the hole spacing a of the flat strip 8 is smaller than the distance b between the fastening elements 11 and 12 of the contact receiving elements 10, the flat strip 8 is stretched during assembly and thus produces a fixed, constant bias.

Claims (9)

  1. Edge switch for closure-edge security with an electrical switching device, where the edge switch (3) consists of a number of contact elements (1, 2) which are arranged under initial tension against one another in sequence and the contact elements (1, 2), in their neutral position, lie against one another under initial tension on contact points (4) provided on the front side of a contact wire (5) and are moved apart to break the contact under the influence of an external force when the edge switch is locally deformed, characterised in that the edge switch (3) has an elastic flat band (8) which is used to provide the initial tension.
  2. Edge switch according to claim 1, characterised in that a rubber band is used as the elastic flat band (8).
  3. Edge switch according to claim 1, characterised in that a two-ply fabric band containing elastofibre is used as the elastic flat band (8).
  4. Edge switch according to claim 1, characterised in that an elastic cord consisting of several strands crossing over and under one another is used as the elastic flat band (8).
  5. Edge switch according to any of the above claims, characterised in that the flat band (8) has holes (9) for fixing elements (11).
  6. Edge switch according to any of the above claims, characterised in that the edge switch (3) has contact-retaining elements (10) and connection plates (6), where the fixing elements (11) are arranged on the contact-retaining element (10) or the connection plate (6) and the connection plate (6) or the contact-retaining element (10) have holding recesses (14).
  7. Edge switch according to claim 6, characterised in that the fixing element (11) and the holding recess (14) interact in a manner similar to a pressure-stud fastener.
  8. Edge switch according to claim 6, characterised in that the fixing element (11) is shaped like a mushroom head and can be clipped into the holding recess (14).
  9. Edge switch according to any of the above claims 1 to 5, characterised in that the edge switch (3) has contact-retaining elements (10) and connection plates (6), where fixing elements (12) are arranged on the connection plate (6) or the contact-retaining element (10) and the contact-retaining element (10) or the connection plate (6) are fitted with clamping retainers (15) for fixing elements (12) and the flat band (8).
EP01129046A 2001-03-06 2001-12-07 Edge switch for closure-edge security Expired - Lifetime EP1239108B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10110643 2001-03-06
DE10110643A DE10110643C1 (en) 2001-03-06 2001-03-06 Safety switch rail has contact between adjacent contact elements broken by deformation of switch rail by external force

Publications (3)

Publication Number Publication Date
EP1239108A2 EP1239108A2 (en) 2002-09-11
EP1239108A3 EP1239108A3 (en) 2009-06-24
EP1239108B1 true EP1239108B1 (en) 2010-02-10

Family

ID=7676421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01129046A Expired - Lifetime EP1239108B1 (en) 2001-03-06 2001-12-07 Edge switch for closure-edge security

Country Status (4)

Country Link
EP (1) EP1239108B1 (en)
AT (1) ATE457405T1 (en)
DE (2) DE10110643C1 (en)
ES (1) ES2339422T3 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3606499C1 (en) 1986-02-28 1987-07-16 Werner Haake Closing edge securing
DE3932820C1 (en) * 1989-09-30 1990-10-25 Haake, Andre
DE4240622C2 (en) * 1992-12-03 1995-12-14 Mayser Gmbh & Co Safety mat or circuit board
DE19647720B4 (en) * 1996-11-19 2004-05-13 Wampfler Aktiengesellschaft Closing edge safety edge

Also Published As

Publication number Publication date
DE10110643C1 (en) 2002-04-25
EP1239108A2 (en) 2002-09-11
DE50115340D1 (en) 2010-03-25
EP1239108A3 (en) 2009-06-24
ES2339422T3 (en) 2010-05-20
ATE457405T1 (en) 2010-02-15

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