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EP0837485A3 - Safety device for position switch - Google Patents

Safety device for position switch Download PDF

Info

Publication number
EP0837485A3
EP0837485A3 EP97116825A EP97116825A EP0837485A3 EP 0837485 A3 EP0837485 A3 EP 0837485A3 EP 97116825 A EP97116825 A EP 97116825A EP 97116825 A EP97116825 A EP 97116825A EP 0837485 A3 EP0837485 A3 EP 0837485A3
Authority
EP
European Patent Office
Prior art keywords
safety device
position switch
release
coded
actuating element
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.)
Ceased
Application number
EP97116825A
Other languages
German (de)
French (fr)
Other versions
EP0837485A2 (en
Inventor
Alfred Bonn
Ulrich Trapp
Jürgen Volberg
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.)
Eaton Industries GmbH
Original Assignee
Kloeckner Moeller 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 Kloeckner Moeller GmbH filed Critical Kloeckner Moeller GmbH
Publication of EP0837485A2 publication Critical patent/EP0837485A2/en
Publication of EP0837485A3 publication Critical patent/EP0837485A3/en
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H27/00—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings
    • H01H27/002—Switches operated by a removable member, e.g. key, plug or plate; Switches operated by setting members according to a single predetermined combination out of several possible settings wherein one single insertion movement of a key comprises an unlocking stroke and a switch actuating stroke, e.g. security switch for safety guards
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H36/0006—Permanent magnet actuating reed switches
    • H01H36/0046—Limit switches, also fail-safe operation or anti-tamper considerations

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Lock And Its Accessories (AREA)
  • Push-Button Switches (AREA)
  • Switches With Compound Operations (AREA)

Abstract

Die vorliegende Erfindung betrifft eine Sicherheitsvorrichtung für Positionsschalter (10) oder dergleichen, bestehend aus einem Betätigungselement (2) und einem Freigabeelement (4). Dabei sind das Betätigungselement (2) und das Freigabeelement (4) mechanisch kodiert. Im Sinne der Erfindung sind Freigabe- und Betätigungselement zusätzlich noch elektromagnetisch kodiert.

Figure 00000001
The invention relates to a safety device for position switches (10) or the like, consisting of an actuating element (2) and a release element (4). The actuating element (2) and the release element (4) are mechanically coded. For the purposes of the invention, the release and actuation element are additionally electromagnetically coded.
Figure 00000001
EP97116825A 1996-10-17 1997-09-27 Safety device for position switch Ceased EP0837485A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19642862 1996-10-17
DE1996142862 DE19642862A1 (en) 1996-10-17 1996-10-17 Safety device for position switches

Publications (2)

Publication Number Publication Date
EP0837485A2 EP0837485A2 (en) 1998-04-22
EP0837485A3 true EP0837485A3 (en) 1998-12-02

Family

ID=7809018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97116825A Ceased EP0837485A3 (en) 1996-10-17 1997-09-27 Safety device for position switch

Country Status (3)

Country Link
EP (1) EP0837485A3 (en)
JP (1) JPH10154447A (en)
DE (1) DE19642862A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVI980169A1 (en) * 1998-09-15 2000-03-15 Pizzato Elettrica Srl KEY SAFETY SWITCH ASSEMBLY.
DE10230564A1 (en) * 2002-07-05 2004-01-29 Gerhard Thiel Coded locking device for machine safety cover has projecting arms provided with passive components fitting into corresponding seatings provided with matching active components
FR2867605B1 (en) * 2004-03-09 2006-05-05 Simon Barnier ELECTRICAL SWITCHING DEVICES WITH COMBINATIONS WITH MAGNETIC ACTUATION
EP2390888B1 (en) * 2010-05-26 2012-07-11 Rockwell Automation Limited Safety switch
JP5195855B2 (en) 2010-09-17 2013-05-15 オムロン株式会社 switch
DE102011121235A1 (en) * 2011-12-12 2013-06-13 Euchner Gmbh + Co. Kg Module for a safety switch, safety switch with such a module and actuator for such a safety switch

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2052158A (en) * 1979-06-02 1981-01-21 Eja Eng Co Ltd Electric switch
DE3424418C1 (en) * 1984-07-03 1985-09-12 Hans & Jos. Kronenberg Gmbh, 5060 Bergisch Gladbach Safety switch
US5287098A (en) * 1991-02-11 1994-02-15 Briggs & Stratton Corp. Fail safe system for a mechanical lock and key set with electrical interlock
DE4303367C1 (en) * 1993-02-05 1994-02-24 Schmersal K A Gmbh & Co Security switch for safety door - has switch operating element fitted in switch housing to rotate cam discs acting as operating roller for movable contact carrier
DE4238016A1 (en) * 1992-11-11 1994-05-19 Kloeckner Moeller Gmbh Position switch operating apparatus - enables switch to be put into door open or door closed or closed and locked positions by inserting key.
US5541562A (en) * 1994-10-16 1996-07-30 Honeywell Inc. Apparatus for sensing the closure of a door

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1665761A1 (en) * 1966-09-28 1971-01-21 Sperry Rand Ltd Electrical switching device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2052158A (en) * 1979-06-02 1981-01-21 Eja Eng Co Ltd Electric switch
DE3424418C1 (en) * 1984-07-03 1985-09-12 Hans & Jos. Kronenberg Gmbh, 5060 Bergisch Gladbach Safety switch
US5287098A (en) * 1991-02-11 1994-02-15 Briggs & Stratton Corp. Fail safe system for a mechanical lock and key set with electrical interlock
DE4238016A1 (en) * 1992-11-11 1994-05-19 Kloeckner Moeller Gmbh Position switch operating apparatus - enables switch to be put into door open or door closed or closed and locked positions by inserting key.
DE4303367C1 (en) * 1993-02-05 1994-02-24 Schmersal K A Gmbh & Co Security switch for safety door - has switch operating element fitted in switch housing to rotate cam discs acting as operating roller for movable contact carrier
US5541562A (en) * 1994-10-16 1996-07-30 Honeywell Inc. Apparatus for sensing the closure of a door

Also Published As

Publication number Publication date
DE19642862A1 (en) 1998-04-30
JPH10154447A (en) 1998-06-09
EP0837485A2 (en) 1998-04-22

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