EP1237168A2 - A pressure-sensitive switch assembly in the form of a conductive strip switch - Google Patents

A pressure-sensitive switch assembly in the form of a conductive strip switch Download PDF

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Publication number
EP1237168A2
EP1237168A2 EP01108562A EP01108562A EP1237168A2 EP 1237168 A2 EP1237168 A2 EP 1237168A2 EP 01108562 A EP01108562 A EP 01108562A EP 01108562 A EP01108562 A EP 01108562A EP 1237168 A2 EP1237168 A2 EP 1237168A2
Authority
EP
European Patent Office
Prior art keywords
switch
mat
damping element
safety
switching
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.)
Withdrawn
Application number
EP01108562A
Other languages
German (de)
French (fr)
Other versions
EP1237168A3 (en
Inventor
André Haake
Oliver Haake
Patrick Haake
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1237168A2 publication Critical patent/EP1237168A2/en
Publication of EP1237168A3 publication Critical patent/EP1237168A3/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • 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
    • H01H2003/147—Special aspects regarding the peripheral edges of the mat switches
    • 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
    • H01H2003/148—Cushion or mat switches the mat switch being composed by independently juxtaposed contact tiles, e.g. for obtaining a variable protected area

Definitions

  • the invention relates to a pressure sensitive Switching device in the form of a flat safety mat according to the preamble of the main claim.
  • Machines may only be placed on the market if Protection of the operator complies with comprehensive safety aspects become. This also includes the protection of danger areas on machines where there is presence or access with the machine running because of the outgoing machine Dangers must be prevented. To protect people Safety mats are exposed to the dangers of this kind used.
  • Closing principle in which two conductive strips or layers brought together when entering the mat or electronic principles where a beam of light is interrupted becomes. These configurations need to transform the output signal a special evaluation device.
  • the switch mat consists of Series of mechanically positive opening contacts in the form of contact elements.
  • Current-conducting contact elements and insulating wedge elements are alternately on lined up with an expander cord. By preloading the contact elements pressed together and the closed circuit is closed.
  • entering the safety mat is about the wedge elements of at least one of the contact element pairs disconnected and the power line interrupted. With these safety mats no additional evaluation device is required.
  • the invention is based, for a safe task to ensure foreign matter-free laying of the safety mats at the same time but make sure that when the safety mat stretches due to thermal or mechanical stress Destruction of the edges of the safety mat cannot occur.
  • the damping elements are preferably designed as a hollow profile, which is technically easy to manufacture and assemble is.
  • the safety mats have a cover plate and a base plate, it is advantageous to use the hollow profile or the damping element to be provided with an insert pin of the same material, which can be used between the base plate and the cover plate is. This is a safe on the one hand, on the other easy setting and attachment of the damping elements guaranteed.
  • a switch mat 1 is shown, for example to a wall boundary 4 or to a ramp profile 3 adjoins, of course, by the invention is also included that a switch mat 1 to another Safety mat 1 can border.
  • a damping element 2 which consists of there is a hollow profile and, for example, an insertion pin 5, with which this damping element 2 between a cover plate 6 and a bottom plate 7 of the switch mat 1 can be used.
  • the damping element 2 takes up this expansion, by compressing the damping element 2, whereby is ensured in the installed state according to FIGS.
  • a Safety edge are used, such as from is known from DE 100 02 926 C1 or in another form belongs to the state of the art, so in this area still a hedge in addition to the normal hedge the safety mat is coming.

Landscapes

  • Push-Button Switches (AREA)
  • Carpets (AREA)

Abstract

A pressure-sensitive switch device in the form of a flat switch mat is equipped with contact elements that upon loading, switch or interrupt a current line. There are damping elements (2) between the individual adjoining switch mats (1) and/or a frame profile in the edge region of the switch mat and/or a fixed wall limitation. The damping element is designed out of a hollow profile. The damping element has a plug-in peg of homogeneous material that can be inserted between a base plate and a cover plate of the switch mat. A conventional switch strip can be inserted into the hollow profile of the damping element.

Description

Die Erfindung bezieht sich auf eine druckempfindliche Schalteinrichtung in Form einer flachbauenden Schaltmatte gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a pressure sensitive Switching device in the form of a flat safety mat according to the preamble of the main claim.

Maschinen dürfen nur in Verkehr gebracht werden, wenn zum Schutz der Bediener umfassende Sicherheitsaspekte beachtet werden. Dazu gehört auch die Absicherung von Gefahrenbereichen an Maschinen, bei denen eine Anwesenheit oder ein Zugang bei laufender Maschine wegen der von dieser ausgehenden Gefahren verhindert werden muß. Zum Schutz von Personen vor Gefahren dieser Art werden Sicherheitsschaltmatten eingesetzt.Machines may only be placed on the market if Protection of the operator complies with comprehensive safety aspects become. This also includes the protection of danger areas on machines where there is presence or access with the machine running because of the outgoing machine Dangers must be prevented. To protect people Safety mats are exposed to the dangers of this kind used.

Bekannt sind entweder elektrische Systeme nach dem Schließerprinzip, bei denen zwei leitfähige Bänder oder Schichten beim Betreten der Matte zusammengebracht werden oder elektronische Prinzipien, bei denen ein Lichtstrahl unterbrochen wird. Diese Konfigurationen benötigen zur Umformung des Ausgangssignales ein spezielles Auswertgerät.Either electrical systems according to the are known Closing principle, in which two conductive strips or layers brought together when entering the mat or electronic principles where a beam of light is interrupted becomes. These configurations need to transform the output signal a special evaluation device.

Gemäß der EP 421 048 B1 besteht die Schaltmatte aus in Reihe geschalteten mechanisch zwangsöffnenden Öffnerkontakten in Form von Kontaktelementen. Stromleitende Kontaktelemente und isolierende Keilelemente sind abwechselnd auf einer Expanderschnur aufgereiht. Durch Vorspannung werden die Kontaktelemente zusammengedrückt und der Ruhestromkreis ist geschlossen. Beim Betreten der Schaltmatte wird über die Keilelemente mindestens eines der Kontaktelementenpaare getrennt und die Stromleitung unterbrochen. Bei diesen Schaltmatten wird kein zusätzliches Auswertgerät benötigt.According to EP 421 048 B1, the switch mat consists of Series of mechanically positive opening contacts in the form of contact elements. Current-conducting contact elements and insulating wedge elements are alternately on lined up with an expander cord. By preloading the contact elements pressed together and the closed circuit is closed. When entering the safety mat is about the wedge elements of at least one of the contact element pairs disconnected and the power line interrupted. With these safety mats no additional evaluation device is required.

Üblicherweise werden mehrere Schaltmatten nebeneinander verlegt, und um die Gesamtanordnung herum wird ein Rampenprofil eingebaut, um einerseits die Schaltmatte zu fixieren und andererseits Stolpergefahren zu vermeiden.Usually there are several safety mats next to each other and a ramp profile is created around the overall arrangement installed to fix the safety mat on the one hand and on the other hand to avoid tripping hazards.

Zwischen diesem Rampenprofil und den einzelnen Schaltmatten sowie zwischen Schaltmatten und festen Wandbegrenzungen besteht ein Raum, in den Fremdkörper eintreten können, die die entsprechende empfindliche Schaltung stören.Between this ramp profile and the individual safety mats as well as between safety mats and fixed wall boundaries there is a space into which foreign bodies can enter, which the disrupt corresponding sensitive circuit.

Der Erfindung liegt die Aufgabe zugrunde, für eine sichere fremdkörperfreie Verlegung der Schaltmatten zu sorgen, gleichzeitig aber sicherzustellen, dass bei Dehnungen der Schaltmatte aufgrund thermischer oder mechanischer Beanspruchung ein Zerstören der Schaltmattenränder nicht eintreten kann.The invention is based, for a safe task to ensure foreign matter-free laying of the safety mats at the same time but make sure that when the safety mat stretches due to thermal or mechanical stress Destruction of the edges of the safety mat cannot occur.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This object of the invention is achieved by Teaching of the main claim solved.

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

Mit anderen Worten ausgedrückt wird vorgeschlagen, dass das Dämpfungselemente zwischen den einzelnen, aneinander angrenzenden Schaltmatten oder den Schaltmatten und einem Rampenprofil oder der Schaltmatte und einem Wandbegrenzungsbereich eingebaut werden können, wobei diese Dämpfungselemente nunmehr einerseits einen dichten Verschluß der Randkanten gewährleisten, andererseits die Dämpfungselemente aber in der Lage sind, Ausdehnungen und Bewegungen der Schaltmatte auszugleichen.In other words, it is suggested that the Damping elements between the individual, adjacent to each other Safety mats or the safety mats and one Ramp profile or the safety mat and a wall boundary area can be installed, these damping elements now on the one hand a tight closure of the Ensure edge edges, on the other hand, the damping elements but are able to expand and move the Balance the safety mat.

Vorzugsweise sind die Dämpfungselemente als Hohlprofil ausgebildet, was technisch leicht herstellbar und konfektionierbar ist.The damping elements are preferably designed as a hollow profile, which is technically easy to manufacture and assemble is.

Da die Schaltmatten eine Deckplatte und eine Bodenplatte aufweisen, ist es vorteilhaft, das Hohlprofil bzw. das Dämpfungselement materialeinheitlich mit einem Einsteckzapfen zu versehen, der zwischen die Bodenplatte und die Deckplatte einsetzbar ist. Hierdurch ist ein einerseits sicheres, andererseits einfaches Festlegen und Anbringen der Dämpfungselemente gewährleistet.Since the safety mats have a cover plate and a base plate, it is advantageous to use the hollow profile or the damping element to be provided with an insert pin of the same material, which can be used between the base plate and the cover plate is. This is a safe on the one hand, on the other easy setting and attachment of the damping elements guaranteed.

Um eine zusätzliche Sicherheit für die Schaltmatte zu erreichen, wird weiterhin vorgeschlagen, dass dann, wenn ein Hohlprofil als Dämpfungselement eingesetzt wird, in dieses Hohlprofil eine an sich bekannte Schaltleiste einsetzbar ist, wie sie beispielsweise aus der DE 100 02 926 C1 bekannt ist.To achieve additional safety for the safety mat, it is further proposed that if a hollow profile is used as a damping element in this hollow profile Known safety edge can be used, as for example is known from DE 100 02 926 C1.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen erläutert. Die Zeichnungen zeigen dabei in den

Fig. 1 und 2
im Bereich einer Wandbegrenzung angeordnete Dämpfungselemente für eine Schaltmatte und in den
Fig. 3 und 4
im Bereich eines Rampenprofiles eingesetzte Dämpfungselemente.
An embodiment of the invention is explained below with reference to the drawings. The drawings show in the
1 and 2
Damping elements arranged in the area of a wall boundary for a switch mat and in the
3 and 4
Damping elements used in the area of a ramp profile.

In den Zeichnungen ist jeweils der Ruhezustand und der Zustand dargestellt, in dem das Dämpfungselement zusammengepresst ist.The drawings show the state of rest and the state shown in which the damping element is compressed is.

In den Zeichnungen ist eine Schaltmatte 1 dargestellt, die beispielsweise an eine Wandbegrenzung 4 oder an ein Rampenprofil 3 angrenzt, wobei selbstverständlich von der Erfindung mitumfasst wird, dass auch eine Schaltmatte 1 an eine andere Schaltmatte 1 angrenzen kann.In the drawings, a switch mat 1 is shown, for example to a wall boundary 4 or to a ramp profile 3 adjoins, of course, by the invention is also included that a switch mat 1 to another Safety mat 1 can border.

In den Raum zwischen den dann aneinander angrenzenden Schaltmatten 1 oder der Wandbegrenzung 4 oder dem Rampenprofil 3 ist ein Dämpfungselement 2 eingesetzt, das aus einem Hohlprofil besteht und beispielsweise einen Einsteckzapfen 5 aufweist, mit dem dieses Dämpfungselement 2 zwischen eine Deckplatte 6 und eine Bodenplatte 7 der Schaltmatte 1 eingesetzt werden kann. Dehnt sich nun - wie in Fig. 2 und Fig. 4 dargestellt - die Schaltmatte 1 aus irgendeinem Grunde aus, nimmt das Dämpfungselement 2 diese Ausdehnung auf, indem sich das Dämpfungselement 2 zusammendrückt, wobei also im Einbauzustand gemäß Fig. 1 und 3 sichergestellt ist, dass in den Raum zwischen Schaltmatte, Wandbegrenzung, Rampenprofil oder Schaltmatte keine Fremdkörper eintreten können, andererseits sichergestellt ist, dass bei einer Materialdehnung der Schaltmatte 1 das Dämpfungsprofil 2 dieser Raumminderung nachgeben kann und trotzdem den vorhandenen Zwischenraum wirksam abdichtet.In the space between those then adjacent Safety mats 1 or the wall boundary 4 or the ramp profile 3, a damping element 2 is used, which consists of there is a hollow profile and, for example, an insertion pin 5, with which this damping element 2 between a cover plate 6 and a bottom plate 7 of the switch mat 1 can be used. Now expands - as in Fig. 2 and Fig. 4 shown - the safety mat 1 for some reason off, the damping element 2 takes up this expansion, by compressing the damping element 2, whereby is ensured in the installed state according to FIGS. 1 and 3, that in the space between switch mat, wall boundary, No foreign objects enter the ramp profile or safety mat can, on the other hand, it is ensured that in the event of material expansion the safety mat 1 the damping profile 2 of this Space can give way and still the existing one Gap seals effectively.

In das als Hohlprofil ausgebildete Dämpfungselement 1 kann eine Schaltleiste eingesetzt werden, wie sie beispielsweise aus der DE 100 02 926 C1 bekannt ist oder auch in anderer Form zum Stand der Technik gehört, so dass in diesem Bereich noch eine Absicherung zusätzlich zu der normalen Absicherung durch die Schaltmatte kommt.In the damping element 1 designed as a hollow profile, a Safety edge are used, such as from is known from DE 100 02 926 C1 or in another form belongs to the state of the art, so in this area still a hedge in addition to the normal hedge the safety mat is coming.

Claims (4)

Druckempfindliche Schalteinrichtung in Form einer flachbauenden Schaltmatte, wobei die Schaltmatte mit Kontaktelementen ausgerüstet ist, die bei Belastung eine Stromleitung schalten oder unterbrechen, gekennzeichnet durch Dämpfungselemente (2) zwischen den einzelnen aneinander angrenzenden Schaltmatten (1) und/oder einem Rampenprofil (3) im Randbereich der Schaltmatte (1) und/oder einer festen Wandbegrenzung (4).Pressure-sensitive switching device in the form of a low-profile switching mat, the switching mat being equipped with contact elements which switch or interrupt a power line under load, characterized by damping elements (2) between the individual mutually adjacent switching mats (1) and / or a ramp profile (3) in the edge area the safety mat (1) and / or a fixed wall boundary (4). Schaltmatte nach Anspruch 1, dadurch gekennzeichnet, dass das Dämpfungselement (2) aus einem Hohlprofil gebildet ist.Switching mat according to claim 1, characterized in that the damping element (2) is formed from a hollow profile. Schaltmatte nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Dämpfungselement (2) einen materialeinheitlichen Einsteckzapfen (5) aufweist, der zwischen einer Bodenplatte (7) und einer Deckplatte (6) der Schaltmatte (1) einsetzbar ist.Switching mat according to claim 1 or 2, characterized in that the damping element (2) has an insert pin (5) of the same material, which can be inserted between a base plate (7) and a cover plate (6) of the switching mat (1). Schaltmatte nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in das Hohlprofil des Dämpfungselementes (2) eine an sich bekannte Schaltleiste einsetzbar ist.Switch mat according to one of the preceding claims, characterized in that a switch strip known per se can be inserted into the hollow profile of the damping element (2).
EP01108562A 2001-03-03 2001-04-05 A pressure-sensitive switch assembly in the form of a conductive strip switch Withdrawn EP1237168A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20103732U 2001-03-03
DE20103732U DE20103732U1 (en) 2001-03-03 2001-03-03 Pressure-sensitive switching device in the form of a flat safety mat

Publications (2)

Publication Number Publication Date
EP1237168A2 true EP1237168A2 (en) 2002-09-04
EP1237168A3 EP1237168A3 (en) 2004-04-28

Family

ID=7953803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01108562A Withdrawn EP1237168A3 (en) 2001-03-03 2001-04-05 A pressure-sensitive switch assembly in the form of a conductive strip switch

Country Status (2)

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EP (1) EP1237168A3 (en)
DE (1) DE20103732U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1437752A1 (en) * 2003-01-13 2004-07-14 Bircher Reglomat AG Mat switch

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155466A1 (en) * 2001-11-12 2003-05-22 Karlheinz Beckhausen Closing edge safety profile
DE10306436A1 (en) * 2003-02-15 2004-08-26 Menz, Jürgen safety device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7342245U (en) * 1973-11-27 1974-03-28 Erhardt & Leimer Kg Contact bottom
DE3932820C1 (en) * 1989-09-30 1990-10-25 Haake, Andre
US5510586A (en) * 1995-01-11 1996-04-23 Tapeswitch Corporation Of America Switch joint for electrical switching mats
DE10002926C1 (en) * 2000-01-25 2001-01-25 Andre Haake Safety switch rail for closure edge has contact points between contact lines within serial switch elements along deformable hose separated by hose deformation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1437752A1 (en) * 2003-01-13 2004-07-14 Bircher Reglomat AG Mat switch

Also Published As

Publication number Publication date
DE20103732U1 (en) 2001-06-21
EP1237168A3 (en) 2004-04-28

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