EP0609672A2 - Interrupteur de sécurité - Google Patents

Interrupteur de sécurité Download PDF

Info

Publication number
EP0609672A2
EP0609672A2 EP94100405A EP94100405A EP0609672A2 EP 0609672 A2 EP0609672 A2 EP 0609672A2 EP 94100405 A EP94100405 A EP 94100405A EP 94100405 A EP94100405 A EP 94100405A EP 0609672 A2 EP0609672 A2 EP 0609672A2
Authority
EP
European Patent Office
Prior art keywords
safety switch
disks
housing
actuating
contact carrier
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.)
Granted
Application number
EP94100405A
Other languages
German (de)
English (en)
Other versions
EP0609672B1 (fr
EP0609672A3 (fr
Inventor
Alan Richard Cooper
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.)
KA Schmersal GmbH and Co KG
Original Assignee
KA Schmersal 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
Application filed by KA Schmersal GmbH and Co KG filed Critical KA Schmersal GmbH and Co KG
Publication of EP0609672A2 publication Critical patent/EP0609672A2/fr
Publication of EP0609672A3 publication Critical patent/EP0609672A3/fr
Application granted granted Critical
Publication of EP0609672B1 publication Critical patent/EP0609672B1/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
    • 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
    • H01H2027/005—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 key receiving part having multiple openings to allow keys from different directions to operate the switch

Definitions

  • the invention relates to a safety switch with a housing, which has at least one housing opening for inserting an actuating member and in which a roller for actuating a contact carrier movable in the housing is rotatably arranged, the roller being locked against rotation and being unlockable and rotatable by inserting the actuating member .
  • Such a safety switch with a separate actuator is known for example from DE-C-3 100 862, 3 330 109 and 3 433 048.
  • This can be attached directly to a protective device, such as a protective door or a machine, with little effort and without additional mechanical components.
  • the actuator can also be designed so complicated that it cannot be copied with simple means, so that it is not possible to outsmart the safety switch with everyday objects (screwdrivers, bottle openers, etc.) or simply bent tools (paper clips).
  • the actuators supplied by the switch manufacturer are all identical, so that you can operate the switch, for example, with a replacement actuator despite the protective door being open.
  • the object of the invention is to provide a safety switch of the type mentioned, which is individually mechanically coded without great effort.
  • the roller comprises a plurality of disks which are rotatable independently of one another about an axis, all of which are provided with a control-curve-like recess through which a pin running parallel to the axis and connected to the contact carrier is guided, the disks being different which have at least one housing opening facing radial recesses for engagement with corresponding actuating sections of the actuating mechanism.
  • Fig. 1 shows a perspective and detail of a safety switch with its actuator.
  • FIG. 2 shows a detail of a longitudinal section through the safety switch from FIG. 1.
  • FIG. 3 shows a section of the safety switch from FIG. 1 rotated by 90 ° with respect to FIG. 2.
  • the safety switch shown comprises a housing 1, which is divided into a contact chamber 3, a sealing chamber 4 and a roller chamber 5 by partitions 2.
  • Fixed contact contacts 6 are arranged in the contact chamber 3, while a contact carrier 9 comprising a plunger 7 and a contact bridge 8 projects into the contact chamber 3.
  • the plunger 7 is guided straight through openings in the intermediate walls 2 and is supported by a spring 10 supported in the housing 1 biased into its starting position.
  • the contact bridge 8 is displaceable relative to the plunger 7 in the axial direction thereof by a predetermined stroke against a spring preload 11.
  • a sealing bellows 12, which is fastened to a guide extension 13 of the intermediate wall 2 separating the contact chamber 3 and the sealing chamber 4, is also fastened to the tappet 7, so that the contact chamber 3 is secured against the ingress of moisture.
  • the plunger 7 carries at its end projecting into the roller chamber 5 a bracket-like holder 14 for a pin 15 extending transversely to the longitudinal axis of the plunger 7.
  • the pin 15 is at both ends in a guide 16 extending in the direction of movement of the plunger 7 inside the Housing 1 out.
  • the bracket-like holder 14 can be guided on the inside of the housing 1.
  • an axis 17 is arranged parallel to the longitudinal direction of the pin 15, on which a row of disks 18 is rotatably arranged independently of one another.
  • Each disk 18 is provided with a control curve-like recess 18 for the pin 15, the control curve-like recesses 19 expediently each having two cam branches which bring about a stroke of the contact carrier 9 and are arranged symmetrically to one another, so that sufficient rotation of the disks 18 forming a roller both in the causes a corresponding stroke of the contact carrier 9 for actuating the safety switch, as in the other direction of rotation.
  • a shape of the recesses 19 in the form of a very flat "3" or a steep, curved "V" expedient.
  • the pin 15 is located in the middle of the symmetrical recesses 19.
  • the disks 18 are each provided with a radial recess 20.
  • the radial recesses 20 are in the direction of the axis 16 and on a preferably slot-like housing opening 21 aligned, wherein an actuator 22 can be inserted through the housing opening 21.
  • each disk 18 has two radial recesses 20 arranged circumferentially offset from one another by 90 °.
  • the roller is formed here from a combination of disks 18 from a certain number of disk types with differently shaped radial recesses 20 and, optionally, disk thicknesses.
  • the radial recesses 20 interact when the actuator 22 is inserted with corresponding actuating sections 23 of the actuating mechanism 22 (wider radial recesses 20 with correspondingly wide actuating sections 23, narrower with correspondingly narrow actuating sections 23), so that the disks 18 are rotated overall in accordance with the direction of insertion of the actuating member 22 and thus the contact carrier 9 is moved to actuate the safety switch.
  • This type of individual coding of the safety switch means that the size as well as the construction and assembly effort are practically not affected and the previous advantages such as actuation from several directions can be retained.
  • the disks 18 can be arranged at a distance from one another on the axis 17. They can be arranged axially displaceably on the axis 17 as a whole package. It is then expedient to provide wedge surfaces 24 protruding laterally on the actuating member 22, which shift the switching disk pack into the correct position, so that the actuating sections 23 subsequently meet the corresponding radial recesses 20. As a result, the lateral tolerance for the insertion of the actuating member 22 can be increased considerably.
  • the disks 18 can also be divided into two or more groups which are separated from one another by roller sections or intermediate walls in the housing 1 which are immovable relative to the housing 1 and which require a corresponding design of the actuating member 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
EP94100405A 1993-02-05 1994-01-13 Interrupteur de sécurité Expired - Lifetime EP0609672B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4303367A DE4303367C1 (de) 1993-02-05 1993-02-05 Sicherheitsschalter
DE4303367 1993-02-05

Publications (3)

Publication Number Publication Date
EP0609672A2 true EP0609672A2 (fr) 1994-08-10
EP0609672A3 EP0609672A3 (fr) 1994-12-28
EP0609672B1 EP0609672B1 (fr) 1998-07-22

Family

ID=6479743

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94100405A Expired - Lifetime EP0609672B1 (fr) 1993-02-05 1994-01-13 Interrupteur de sécurité

Country Status (5)

Country Link
US (1) US5420385A (fr)
EP (1) EP0609672B1 (fr)
JP (1) JP3207654B2 (fr)
BR (1) BR9400421A (fr)
DE (1) DE4303367C1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0707329A1 (fr) * 1994-10-13 1996-04-17 HANS BERNSTEIN SPEZIALFABRIK FÜR SCHALTKONTAKTE GmbH & CO. Interrupteur de sécurité

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4328297C1 (de) * 1993-08-23 1995-02-23 Euchner & Co Sicherheitsschalter
DE4328296C1 (de) * 1993-08-23 1994-11-24 Euchner & Co Sicherheitsschalter
DE19504744A1 (de) * 1995-02-14 1996-09-12 Schmersal K A Gmbh & Co Sicherheitsschalter
DE19521521C1 (de) * 1995-06-13 1996-06-27 Schmersal K A Gmbh & Co Generalbetätiger für einen kodierten Sicherheitsschalter
FR2741993B1 (fr) * 1995-12-05 1998-01-16 Schneider Electric Sa Interrupteur electrique de securite a cle
DE19624172C2 (de) * 1996-06-18 2000-05-11 Moeller Gmbh Sicherheitsvorrichtung für Positionsschalter
DE19642862A1 (de) * 1996-10-17 1998-04-30 Kloeckner Moeller Gmbh Sicherheitsvorrichtung für Positionsschalter
DE19649717A1 (de) * 1996-11-30 1998-06-04 Euchner Gmbh & Co Sicherheitsschalter
DE19711588A1 (de) † 1997-03-20 1998-09-24 Euchner Gmbh & Co Sicherheitsschalter
US6118087A (en) 1997-03-31 2000-09-12 Idec Izumi Corporation Safety switch
IT1292975B1 (it) † 1997-04-11 1999-02-11 Pizzato Elettrica Srl Interruttore di sicurezza a chiave.
JP2000106066A (ja) * 1998-07-30 2000-04-11 Omron Corp キースイッチ
US6720508B2 (en) * 2001-07-06 2004-04-13 Omron Corporation Door switches
GB0214205D0 (en) * 2002-06-19 2002-07-31 Eja Ltd Lockable switch mechanism
GB0405543D0 (en) * 2004-03-10 2004-04-21 Eja Ltd Switch mechanism
JP4522291B2 (ja) * 2005-03-08 2010-08-11 Ｉｄｅｃ株式会社 安全スイッチ
JP4673661B2 (ja) * 2005-04-26 2011-04-20 Ｉｄｅｃ株式会社 安全スイッチ
GB0519929D0 (en) * 2005-09-30 2005-11-09 Eja Ltd Safety switch
JP4747888B2 (ja) * 2006-03-09 2011-08-17 オムロン株式会社 スイッチ
GB0700146D0 (en) * 2007-01-05 2007-02-14 Eja Ltd Safety switch mounting
CN101937781B (zh) * 2009-06-29 2013-06-19 西门子公司 隔离开关
DE102009053717B4 (de) 2009-11-18 2016-05-04 K.A. Schmersal Holding Gmbh & Co. Kg Anordnung mit einem Sicherheitsschalter oder einer Sicherheitszuhaltung und einem mechanischen Betätiger
JP5394981B2 (ja) * 2010-05-13 2014-01-22 株式会社東海理化電機製作所 イグニッションスイッチの操作規制装置
US8362380B2 (en) 2011-01-31 2013-01-29 Bren-Tronics Batteries International, L.L.C. Current isolation contactor
DE102013105373A1 (de) * 2013-05-24 2014-11-27 K.A. Schmersal Holding Gmbh & Co. Kg Schalteinheit zur Aufnahme eines Betätigers
CN103413706B (zh) * 2013-08-21 2015-04-08 日升集团有限公司 一种开关柜开关
CN103414109B (zh) * 2013-08-21 2015-11-25 日升集团有限公司 一种多电源进线开关柜
DE102015002863A1 (de) * 2015-03-06 2016-09-08 E. Dold & Söhne KG Sicherheitsschalteranordnung
US11640864B2 (en) * 2019-12-05 2023-05-02 Deltrol Corp. System and method for detecting position of a solenoid plunger

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE575166C (de) * 1928-05-20 1933-04-25 Karl Kalbitzer Einrichtung zur Bewegung und Sicherung des Riegels in Schloessern und sonstigen Riegelverschluessen mittels eines in der Kurvenfuehrung eines Treibstuecks gleitenden Zapfens oder Klauenstuecks
DE3100862C2 (de) * 1981-01-14 1984-02-09 K.A. Schmersal Gmbh & Co, 5600 Wuppertal Sicherheitsschalter
DE3302631C2 (de) * 1983-01-27 1985-02-07 Hans & Jos. Kronenberg Gmbh, 5060 Bergisch Gladbach Sicherheitsschalter mit Fehlschließsicherung
DE3330109C2 (de) * 1983-08-20 1986-01-02 K.A. Schmersal Gmbh & Co, 5600 Wuppertal Elektrischer Schalter
US4658102A (en) * 1984-09-08 1987-04-14 K. A. Schmersal Gmbh & Co. Electric switch
DE3433048C2 (de) * 1984-09-08 1986-10-02 K.A. Schmersal Gmbh & Co, 5600 Wuppertal Elektrischer Schalter
US4963706A (en) * 1989-01-12 1990-10-16 Eja Engineering Company Limited Safety switch assemblies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0707329A1 (fr) * 1994-10-13 1996-04-17 HANS BERNSTEIN SPEZIALFABRIK FÜR SCHALTKONTAKTE GmbH & CO. Interrupteur de sécurité

Also Published As

Publication number Publication date
JPH06243762A (ja) 1994-09-02
EP0609672B1 (fr) 1998-07-22
US5420385A (en) 1995-05-30
BR9400421A (pt) 1994-08-23
DE4303367C1 (de) 1994-02-24
JP3207654B2 (ja) 2001-09-10
EP0609672A3 (fr) 1994-12-28

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