EP0092799B1 - Kontaktmatte - Google Patents

Kontaktmatte Download PDF

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Publication number
EP0092799B1
EP0092799B1 EP83103883A EP83103883A EP0092799B1 EP 0092799 B1 EP0092799 B1 EP 0092799B1 EP 83103883 A EP83103883 A EP 83103883A EP 83103883 A EP83103883 A EP 83103883A EP 0092799 B1 EP0092799 B1 EP 0092799B1
Authority
EP
European Patent Office
Prior art keywords
mat
hose
pressure
moulding
wave
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.)
Expired
Application number
EP83103883A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0092799A1 (de
Inventor
Kurt Hübner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huebner Gummi und Kunststoff GmbH
Original Assignee
Huebner Gummi und Kunststoff GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huebner Gummi und Kunststoff GmbH filed Critical Huebner Gummi und Kunststoff GmbH
Publication of EP0092799A1 publication Critical patent/EP0092799A1/de
Application granted granted Critical
Publication of EP0092799B1 publication Critical patent/EP0092799B1/de
Expired 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
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/24—Power arrangements internal to the switch for operating the driving mechanism using pneumatic or hydraulic actuator
    • 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

Definitions

  • the invention relates to a contact mat according to the preamble of claim 1.
  • Such contact mats are known per se. They serve a wide variety of purposes. For example, they are used as step contacts on buses or as step contacts on building doors.
  • a contact mat, from which the present invention is based in particular, is disclosed in DE-U-1971111.
  • a pressure wave is generated in the fluid enclosed in the hose, in particular compressed air, when the mat is entered and is passed over the length of the hose to a connected pressure wave switch.
  • This pressure wave switch converts the pressure wave into an electrical impulse that, for example, automatically opens the door to be operated.
  • a known burglar alarm (US-A-4311889) works in a similar manner, in which a wire made of electrically conductive material is stretched between two fixed points and is assigned in the middle to an electrical circuit such that it switches a switch when a floor above it is unloaded of the circuit in its open position remains unaffected, but is deflected in the loaded state of the floor in its central region and thereby brings the switch into its closed position, whereby a signal is generated by the circuit that indicates the load on the floor. This means that an unauthorized intruder can indicate that the floor has been walked on.
  • the pressure wave hose is guided from one end of the mat in a wave or meandering manner through it to the other end, in order to be led out of the mat there and connected to the pressure wave switch.
  • relatively large bending radii must be selected and a relatively thin pressure hose must be used. The result of this is that a relatively large proportion of the area of the contact mat comes to lie outside the pressure wave hose area and that the mat does not respond at all points.
  • the relatively small cross-section of the pressure wave hose also means that the sensitivity of the mat is not very great and that a high level of force is required to bring the compressed air flow to work at the pressure wave switch.
  • contact mats are used for tread contacts in vehicles or in connection with building doors.
  • applications in which a better response of the contact mats and two outputs are required are required.
  • One such application is, for example, job security for work machines, as is required by trade inspectorates and professional associations.
  • the object of the invention is the further development of the generic contact mat in such a way that a considerably greater sensitivity is achieved with relatively little structural effort.
  • the actual contact mat 1 consists of a base plate made of triple coated with Hypalon Trevira fabric, an intermediate mat made of cellular rubber, as well as a cover plate, which also consists of "Trevira fabric coated with Hypalon".
  • a cover plate which also consists of "Trevira fabric coated with Hypalon”.
  • the contact mat is a rectangular, preferably square, plate.
  • Two pressure wave hose sections 2, 3, which are arranged concentrically to one another and spirally, are inserted into this plate.
  • the diameter of the pressure wave hose 2, 3 is greater than the thickness of the contact mat 1.
  • the pressure wave hose lies in two grooves 4, 5 of the contact mat in such a way that the top 6 thereof is smooth or preferably slightly wavy and flat, while its underside has 7 ribs of the height by which the diameter of the pressure wave hose is greater than the thickness of the contact mat.
  • connection of the pressure wave hose sections in the center of the contact mat takes place with a molded part 8 forming a hose bend, on the ends of which the inner ends of the pressure wave hose sections are pushed on and glued in a durable manner.
  • the arc adjoining the tubular elbow of the molded part 8 is also formed by a corresponding molded part 9. Both molded parts 8, 9 are laterally offset from one another by the arc diameter, so that the “inner” leg of one molded part 8 comes to lie coaxially with the “outer” leg of the other molded part 9 and these two legs are connected to one another directly or via a short piece of hose .
  • the connecting pieces of the molded parts, onto which the pressure wave hose 2, 3 is pushed, are provided with outer grooves 10, so that molded parts and pressure wave hose can be reliably glued together.
  • the double output of the contact mat can be connected to a commercially available, self-monitoring combination, which is a pneumatic safety system consisting of the actual monitoring combination and a pressure sensor connected via a hose line (the pressure wave hose 2, 3).
  • the combination includes four special pressure wave switches, two of which are used to control the transmitter pressure and two to control the pump.

Landscapes

  • Carpets (AREA)
  • Mattresses And Other Support Structures For Chairs And Beds (AREA)
  • Push-Button Switches (AREA)
EP83103883A 1982-04-21 1983-04-20 Kontaktmatte Expired EP0092799B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3214838 1982-04-21
DE19823214838 DE3214838A1 (de) 1982-04-21 1982-04-21 Kontaktmatte

Publications (2)

Publication Number Publication Date
EP0092799A1 EP0092799A1 (de) 1983-11-02
EP0092799B1 true EP0092799B1 (de) 1985-12-18

Family

ID=6161550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83103883A Expired EP0092799B1 (de) 1982-04-21 1983-04-20 Kontaktmatte

Country Status (3)

Country Link
EP (1) EP0092799B1 (da)
DE (2) DE3214838A1 (da)
DK (1) DK159583A (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU187896B (en) * 1983-05-05 1986-02-28 Banyaszati Aknamelyitoe Vallalat,Hu Apparatus for determining and indicating the necessary quantity of gas in order to leave a dngerous place in safety, applicable to a basic apparatus with a tank containing gas /oxigen or air/ for people working in dangerous places and with gas feeding organs, applicable preferably to fleeing apparatuses of mining industry
FR2773127B1 (fr) * 1997-12-30 2000-02-04 Valeo Electronique Contacteur electrique tournant
DE19934828A1 (de) * 1999-07-24 2001-01-25 Bircher Ag Beringen Signalgeber, insbesondere Druck- oder Unterdrucksensor
AT500018B8 (de) * 2003-07-30 2007-02-15 Man Nutzfahrzeuge Ag Fahrzeug mit sensierten trittstufen in einstiegsbereichen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1971111U (de) * 1967-04-26 1967-10-26 Kurt Huebner Kontaktmatte fuer tritte u. dgl.
US3784768A (en) * 1972-02-28 1974-01-08 Data Time Submersible touch-operated signaler with fluid drainage passages
DE7318999U (de) * 1973-05-19 1973-09-06 Erhardt & Leimer Kg Elastische bodenmatte die beim betreten einer tueroeffnungsautomatik od.dgl.ausloest
US3916214A (en) * 1973-12-07 1975-10-28 Jr Ralph Parker Coble Electric switch for sensing swimming race events and the like
US4311889A (en) * 1980-01-28 1982-01-19 Blanchard Jeffrey R Alarm device

Also Published As

Publication number Publication date
DK159583D0 (da) 1983-04-12
DE3361540D1 (en) 1986-01-30
DE3214838A1 (de) 1983-10-27
DK159583A (da) 1983-10-22
EP0092799A1 (de) 1983-11-02

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