EP0801801B1 - Interrupteur de securite - Google Patents

Interrupteur de securite Download PDF

Info

Publication number
EP0801801B1
EP0801801B1 EP94922260A EP94922260A EP0801801B1 EP 0801801 B1 EP0801801 B1 EP 0801801B1 EP 94922260 A EP94922260 A EP 94922260A EP 94922260 A EP94922260 A EP 94922260A EP 0801801 B1 EP0801801 B1 EP 0801801B1
Authority
EP
European Patent Office
Prior art keywords
ram
key
cam
safety switch
pct
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 - Lifetime
Application number
EP94922260A
Other languages
German (de)
English (en)
Other versions
EP0801801A1 (fr
Inventor
Werner Rapp
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.)
Euchner GmbH and Co KG
Original Assignee
Euchner GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6495800&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0801801(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Euchner GmbH and Co KG filed Critical Euchner GmbH and Co KG
Publication of EP0801801A1 publication Critical patent/EP0801801A1/fr
Application granted granted Critical
Publication of EP0801801B1 publication Critical patent/EP0801801B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H27/007—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 the switch being lockable by remote control, e.g. by electromagnet

Definitions

  • the invention relates to a safety switch that Features of the preamble of claim 1.
  • Safety switches are used wherever ensured must be that a door, a cover or the like., which in the closed state gives access to the security area prevent a machine, can only be opened, when the machine is turned off, and turning on the Machine is only possible when the door or the like is closed is. If, moreover, it must be prevented that not already when the machine is switched off, but only when the Machine has come to a standstill, the key from which Key channel of the safety switch pulled out and so that the door or the like can be opened, the Safety switch additionally a locking device on the causes the key to correspond during the expiry period Period of time is recorded in the key channel.
  • Electromagnet on either excited when excited Bolt holds in the locked position or that of one preloaded spring held in the locked position Pulls the bolt out of the locked position.
  • the bar acts in its locked position with either Tappet together or directly with the key.
  • the invention based on the task of a safety switch at the beginning to create the type mentioned, the locking device is inexpensive and can be realized in a space-saving manner. This task solves a safety switch with the features of the claim 1.
  • a section of the plunger is designed as an anchor, compared to safety switches without the locking device only the stator part of the electromagnet required as an additional component, leading to leads to a significant reduction in costs.
  • the space requirement is reduced on the one hand by the fact that the stator part includes the plunger, on the other hand in that components are not are required, which is the magnetic force generated by the stator part transferred to the ram in the form of a locking force.
  • the locking edge that abuts the plunger when the locking device is effective, and thereby turning the ratchet prevents what is a requirement for removing the key from the key channel can be through one edge a recess in the cam track be formed in which of the tappets in the position of the ratchet can intervene in which the key completely in the Key channel introduced and therefore the door to be secured or the like is completely closed.
  • the locking device can optionally be a magnetic lock or cause a spring lock.
  • the electromagnet presses the plunger, as a rule against the force of a spring, against the cam track.
  • the ram is trapped by a preloaded spring pressed the cam track. The electromagnet then unlocks when excited, the ratchet.
  • stator part of the electromagnet on the plunger Exertable force is sufficient to the prescribed for the key Generating locking force or that of a biased To compensate spring generated locking force needs no self-locking between the locking flank and the plunger to be present.
  • the invention is based on one in the drawing illustrated embodiment explained in detail.
  • the only figure shows a schematically illustrated section of the embodiment in the direction of the longitudinal axis of his Pestle.
  • a safety switch designated as a whole by 1 has a cuboid-shaped housing 2 in the embodiment, the can consist of metal or plastic. On one end the housing 2 closes the housing 3 of a head part on that the key channel 4 for a as a switch actuator serving key 5 forms. That like the case 2 housing made of metal or plastic 3 is so trained that it is not only shown in the figure Position, but also opposite this position by 90 ° or rotated 180 ° with the housing 2 by means of not shown Screws can be connected.
  • the housing 2 is displaceable in its longitudinal direction Ram 6 stored. Its lower end is in contact with one with the plunger 6 aligned actuating pin 7 of a switch 8, which contains at least one switching path that is closed is when the key is completely in the key channel 4 is inserted and is open when the key 5 is pulled out of the key channel 4.
  • Ratchet wheel 9 crosses the longitudinal axis of the plunger at right angles 6.
  • Ratchet wheel 9 provided with a radial incision 11 one flank of a cross bar 5 'of the key 5 in plant comes when the key 5 is inserted into the key channel 4 becomes.
  • locking elements which can be actuated by means of the key 5 prevent if the key is outside the key channel 4, the ratchet 9 with a Tools, for example a screwdriver or a Wire piece, in the angular position shown in the drawing can be rotated.
  • a Tools for example a screwdriver or a Wire piece
  • the stator part 12 is concentric to the plunger 6 in the housing 2 an electromagnet.
  • the surrounding the plunger 6 Stator part 12 is connected to the housing via a holder or the like 2 connected.
  • the plunger 6 has one Middle section 6 ', the diameter of which compared to The diameter of the two end sections is larger. It can therefore the entire plunger 6 made of a ferromagnetic Material existed.
  • the length of this middle section is 6 ' approximately equal to the axial length of the stator part 12, between the inner wall and outer surface of the middle section 6 'there is only a relatively small air gap.
  • a biased coil spring 13, which on the actuating pin 7 surrounding end portion of the plunger 6 and with its end facing away from the switch 8 on a shoulder of the Ram 6 is supported, on the other hand, based on a plate 14 fixed to the housing and therefore presses the upper end of the plunger 6 on the outer surface of the ratchet 9.
  • the smallest distance from the axis of rotation of the Ratchet wheels 9 has, provided with a recess 15, in which the plunger 6 engages thanks to the force of the coil spring 13, when the ratchet 9 in that angular position is located, in which the key 5 completely in the key channel 6 is introduced.
  • the locking recess 15 forms against the curved path 10 towards a blocking edge 15 '.
  • Their course and the shape of the engaging in the locking recess 15 end of the Ram 6 are selected so that self-locking is available.
  • the plunger 6 can therefore not be pushed out of the locking recess 15 be when a torque in the ratchet 9 Exercised clockwise when looking in the direction of the figure becomes. Such torque occurs when on the key 5 a force in the sense of pulling out of the key channel 4 is exercised.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Push-Button Switches (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Electromagnets (AREA)
  • Auxiliary Devices For Machine Tools (AREA)

Claims (3)

  1. Interrupteur de sécurité (1) avec un coulisseau (6) se déplaçant dans le sens longitudinal en tant qu'organe de commande d'interrupteur, une roue de commande (9) avec une trajectoire incurvée (10) présentant au moins un flanc de blocage (15'), sur laquelle un ressort (13) prétendu maintient une extrémité de coulisseau, une clé (5), au moyen de laquelle la roue de commande (9) peut tourner inévitablement aussi bien lors de l'introduction dans un canal de clé (4) que lorsqu'on la ressort, et un dispositif de serrage présentant un électroaimant, dont la partie stator (12) est fixée dans le boítier (2) de l'interrupteur de sécurité (1), dispositif au moyen duquel la clé (5) peut être bloquée pour un temps de retard contre une extraction du canal de clé (4), caractérisé en ce qu'une partie (6') du coulisseau (6) est conçue comme induit de la partie stator (12) le contenant de l'électroaimant (6', 12).
  2. Interrupteur de sécurité selon la revendication 1, caractérisé en ce que le flanc de blocage (15') est formé par un flanc d'une cavité d'arrêt (15).
  3. Interrupteur de sécurité selon la revendication 1 ou 2, caractérisé en ce que le flanc de blocage (15') et la zone, agissant conjointement avec lui, de la surface du coulisseau ont une forme entraínant un blocage automatique.
EP94922260A 1993-08-23 1994-07-05 Interrupteur de securite Expired - Lifetime EP0801801B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4328297A DE4328297C1 (de) 1993-08-23 1993-08-23 Sicherheitsschalter
DE4328297 1993-08-23
PCT/EP1994/002202 WO1995006323A1 (fr) 1993-08-23 1994-07-05 Interrupteur de securite

Publications (2)

Publication Number Publication Date
EP0801801A1 EP0801801A1 (fr) 1997-10-22
EP0801801B1 true EP0801801B1 (fr) 1998-06-03

Family

ID=6495800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94922260A Expired - Lifetime EP0801801B1 (fr) 1993-08-23 1994-07-05 Interrupteur de securite

Country Status (6)

Country Link
US (1) US5760353A (fr)
EP (1) EP0801801B1 (fr)
JP (1) JP3476827B2 (fr)
AT (1) ATE166999T1 (fr)
DE (1) DE4328297C1 (fr)
WO (1) WO1995006323A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533826A1 (fr) * 2003-11-21 2005-05-25 Schneider Electric Industries SAS Interrupteur de position de sécurité
DE102009059050A1 (de) 2009-12-15 2011-06-16 Euchner Gmbh + Co. Kg Zuhaltesystem für einen Sicherheitsschalter und Sicherheitsschalter mit einem solchen Zuhaltesystem
DE102010035765A1 (de) * 2010-08-20 2012-02-23 Euchner Gmbh + Co. Kg Vorrichtung zum Überwachen des Zustandes einer Schutzeinrichtung einer Maschine, insbesondere Sicherheitsschalter, und Verfahren zum Betrieb einer solchen Vorrichtung

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IT1294007B1 (it) * 1996-12-19 1999-03-15 Pizzato Elettrica Srl Interruttore elettromeccanico di sicurezza temporizzato
DE19730949A1 (de) * 1997-07-18 1999-01-21 Kloeckner Moeller Gmbh Elektrisches Schaltgerät mit einem stößelartigen Antriebsorgan
EP0910102B1 (fr) * 1997-10-14 2005-11-23 Siemens Aktiengesellschaft Interrupteur rotatif comportant des moyens de blocage en rotation
DE29720613U1 (de) * 1997-11-20 1999-03-25 Elan Schaltelemente GmbH, 35435 Wettenberg Verriegelungseinrichtung
DE29803028U1 (de) * 1998-02-20 1998-04-09 Hans Bernstein Spezialfabrik für Schaltkontakte GmbH & Co, 32457 Porta Westfalica Sicherheitsschalter
DE19917211C1 (de) * 1999-04-16 2000-11-16 Euchner Gmbh & Co Vorrichtung zum Schalten einer Verbindung in Abhängigkeit des Zustandes einer zu überwachenden Einrichtung, insbesondere Sicherheitsschalter
DE19917212A1 (de) * 1999-04-16 2000-11-02 Euchner Gmbh & Co Vorrichtung zum Schalten einer Verbindung in Abhängigkeit des Zustandes einer zu überwachenden Einrichtung, insbesondere Sicherheitsschalter
DE19937947C2 (de) * 1999-08-11 2003-04-17 Euchner Gmbh & Co Vorrichtung zum Schalten einer elektrischen Verbindung in Abhängigkeit des Zustandes einer Schutzeinrichtung
US6892121B2 (en) * 1999-12-14 2005-05-10 Siemens Aktiengesellschaft System for controlling the operation of modules using information transmitted from a control device via a data bus, a trigger device and a test circuit
DE10146828A1 (de) * 2001-09-18 2003-04-24 Euchner Gmbh & Co Zuhaltesystem eines Sicherheitsschalters mit einem Lesekopf und einem Betätiger
DE102004019547B4 (de) * 2004-04-22 2006-12-28 Euchner Gmbh + Co. Kg Vorrichtung zum Überwachen des Zustandes einer Schutzeinrichtung einer Maschine
DE102004038488B4 (de) * 2004-08-07 2006-06-14 Euchner Gmbh + Co. Kg Vorrichtung zum Überwachen des Zustandes einer Schutzeinrichtung einer Maschine
DE102004047574A1 (de) * 2004-09-27 2006-04-06 Euchner Gmbh + Co. Kg Vorrichtung zum Überwachen des Zustandes einer Schutzeinrichtung
DE502005002179D1 (de) * 2004-08-07 2008-01-17 Euchner Gmbh & Co Kg Vorrichtung zum überwachen des zustandes einer schutzeinrichtung
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JP4727290B2 (ja) * 2005-05-11 2011-07-20 Ｉｄｅｃ株式会社 安全スイッチ
DE102005057108A1 (de) 2005-11-28 2007-05-31 Pilz Gmbh & Co. Kg Sicherheitsschalter zum Erzeugen eines Freigabesignals in Abhängigkeit von der Position einer beweglichen Schutztür
JP4747888B2 (ja) * 2006-03-09 2011-08-17 オムロン株式会社 スイッチ
DE102006033355A1 (de) * 2006-07-19 2008-01-24 Euchner Gmbh + Co. Kg Vorrichtung zum Überwachen des Zustandes einer Schutzeinrichtung einer Maschine
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ATE505804T1 (de) 2008-09-25 2011-04-15 Euchner Gmbh & Co Kg Vorrichtung zum überwachen des zustandes einer schutzeinrichtung einer maschine
DE102008050892A1 (de) 2008-09-25 2010-04-08 Euchner Gmbh + Co. Kg Vorrichtung zum Überwachen des Zustandes einer Schutzeinrichtung einer Maschine
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DE102008055685B4 (de) 2008-10-28 2011-05-19 Euchner Gmbh + Co. Kg Vorrichtung zum Überwachen des Zustandes einer Schutzeinrichtung einer Maschine
DE102008060004B4 (de) * 2008-11-25 2021-09-02 Pilz Gmbh & Co. Kg Sicherheitsschalter zum Erzeugen eines Anlagenfreigabesignals in Abhängigkeit von der Position einer beweglichen Schutztür
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1533826A1 (fr) * 2003-11-21 2005-05-25 Schneider Electric Industries SAS Interrupteur de position de sécurité
FR2862810A1 (fr) * 2003-11-21 2005-05-27 Schneider Electric Ind Sas Interrupteur de position de securite
US6982391B2 (en) 2003-11-21 2006-01-03 Schneider Electric Industries Sas Safety position switch
DE102009059050A1 (de) 2009-12-15 2011-06-16 Euchner Gmbh + Co. Kg Zuhaltesystem für einen Sicherheitsschalter und Sicherheitsschalter mit einem solchen Zuhaltesystem
DE102009059050B4 (de) * 2009-12-15 2017-10-12 Euchner Gmbh + Co. Kg Zuhaltesystem für einen Sicherheitsschalter und Sicherheitsschalter mit einem solchen Zuhaltesystem
DE102010035765A1 (de) * 2010-08-20 2012-02-23 Euchner Gmbh + Co. Kg Vorrichtung zum Überwachen des Zustandes einer Schutzeinrichtung einer Maschine, insbesondere Sicherheitsschalter, und Verfahren zum Betrieb einer solchen Vorrichtung
DE102010035765B4 (de) * 2010-08-20 2012-03-22 Euchner Gmbh + Co. Kg Vorrichtung zum Überwachen des Zustandes einer Schutzeinrichtung einer Maschine, insbesondere Sicherheitsschalter, und Verfahren zum Betrieb einer solchen Vorrichtung

Also Published As

Publication number Publication date
EP0801801A1 (fr) 1997-10-22
DE4328297C1 (de) 1995-02-23
WO1995006323A1 (fr) 1995-03-02
JP3476827B2 (ja) 2003-12-10
US5760353A (en) 1998-06-02
JPH09502298A (ja) 1997-03-04
ATE166999T1 (de) 1998-06-15

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