EP0609672B1 - Interrupteur de sécurité - Google Patents

Interrupteur de sécurité Download PDF

Info

Publication number
EP0609672B1
EP0609672B1 EP94100405A EP94100405A EP0609672B1 EP 0609672 B1 EP0609672 B1 EP 0609672B1 EP 94100405 A EP94100405 A EP 94100405A EP 94100405 A EP94100405 A EP 94100405A EP 0609672 B1 EP0609672 B1 EP 0609672B1
Authority
EP
European Patent Office
Prior art keywords
safety switch
discs
housing
switch according
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.)
Expired - Lifetime
Application number
EP94100405A
Other languages
German (de)
English (en)
Other versions
EP0609672A3 (fr
EP0609672A2 (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, the at least one housing opening for inserting an actuator has and in the roller for actuating one in the housing movable contact carrier is rotatably arranged, the roller locked against rotation and by inserting the actuator can be unlocked and rotated.
  • Such a safety switch with a separate actuator is for example from DE-C-3 100 862, 3 330 109 and 3 433 048 (closest prior art) known. This is without much effort and without additional mechanical Components directly on a protective device, such as a protective door or attachable to a machine.
  • the actuator can also sufficiently complicated to be designed so that it can be done with simple means cannot be copied, so that the safety switch can be outwitted with Everyday items (screwdrivers, bottle openers etc.) or simply curved tools (paper clips) are not possible is.
  • the actuators supplied by the switch manufacturer are all identical among themselves, so that you can, for example, with a replacement actuator can operate the switch despite the protective door being open.
  • the object of the invention is a safety switch to create the type mentioned above, the individual without much effort is mechanically coded.
  • rollers independently comprises disks rotatably supported from one another about an axis, which are all provided with a control curve-like recess the one running parallel to the axis and connected to the contact carrier Pen is guided, the disks different, the least a 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 section of a longitudinal section through the safety switch of Fig. 1st
  • FIG. 3 shows a section rotated by 90 ° compared to FIG. 2 the safety switch of FIG. 1.
  • the safety switch shown comprises a housing 1, the through partitions 2 into a contact chamber 3, a sealing chamber 4 and a roller chamber 5 is divided.
  • a plunger 7 and a contact bridge 8 comprising contact carrier 9 protrudes.
  • the plunger 7 is opened through openings in the intermediate walls 2 just guided and is supported by a spring 10 supported in the housing 1 biased into its starting position.
  • the contact bridge 8 is opposite the plunger 7 in its axial direction against a predetermined stroke a spring bias 11 slidably.
  • a bellows 12 on one Guide extension 13 of the contact chamber 3 and the sealing chamber 4th separating partition 2 is attached, is further attached to the plunger 7, so that the contact chamber 3 against the ingress of moisture is secured.
  • the plunger 7 bears on its protruding into the roller chamber 5 End of a bracket-like bracket 14 for one transversely to the longitudinal axis of the plunger 7 extending pin 15.
  • the pin 15 is at both ends in a guide extending in the direction of movement of the plunger 7 16 guided inside the housing 1.
  • the bracket-like bracket 14 can be guided on the inside of the housing 1.
  • an axis 17 is parallel to the longitudinal direction of the pin 15 arranged on which a series of disks 18th is independently rotatable.
  • Each disc 18 has a cam-like recess 18 provided for the pin 15, wherein the control curve-like recesses 19 expediently in each case two strokes of the contact carrier 9, have curve branches arranged symmetrically to one another, so that a sufficient rotation of the discs forming a roller 18 both a corresponding one in the one and in the other direction of rotation Stroke of the contact carrier 9 for actuating the safety switch.
  • a shape of the recesses 19 is shown in FIG Form a very flat "3" or a steep, curved "V" (for example corresponding to the control grooves in DE-PS 31 00 862, Fig. 1 and 5 with the corresponding effects with regard to the switching process) expedient.
  • the pin 15 In the starting position, the pin 15 is in the Center of the symmetrical recesses 19.
  • the disks 18 are each with a radial recess 20 provided.
  • the radial recesses 20 are in Direction of the axis 16 and a preferably slot-like housing opening 21 aligned, with an actuator through the housing opening 21 22 can be inserted.
  • each disk 18 has two circumferentially to each other Radial recesses 20 offset by 90 °.
  • the roller is made from a combination of disks 18 a certain number of disc types with different shapes Radial recesses 20 and possibly disc thicknesses are formed.
  • the Radial recesses 20 act when the actuator 22 is inserted with corresponding actuating sections 23 of the actuating mechanism 22 (wider radial recesses 20 with correspondingly wide actuation sections 23, narrower with correspondingly narrow operating sections 23) together, so that the disks 18 as a whole correspond to the direction of insertion of the actuator 22 rotated and thus the contact carrier 9 is moved to actuate the safety switch.
  • Disks 18 can be arranged at a distance from each other on the axis 17. She can be arranged axially displaceably on the axis 17 as a whole package be. It is then appropriate to protrude laterally on the actuator 22 To provide wedge surfaces 24 that the switching disc package in the correct Shift position so that the actuating sections 23rd meet the corresponding radial recesses 20. This can the lateral tolerance for the insertion of the actuator 22 significantly be enlarged.
  • the disks 18 can also be in two or more Groups be divided by immovable relative to the housing 1 Roll sections or partitions in the housing 1 separated from each other are and require a corresponding training of the actuator 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Push-Button Switches (AREA)

Claims (7)

  1. Interrupteur de sécurité comportant un boítier (1) qui présente au moins une ouverture (21) pour l'introduction d'un organe de commande (22), ouverture dans laquelle est disposé de manière rotative un cylindre destiné à commander un porte-contact (9) mobile à l'intérieur du boítier (1), ledit cylindre étant bloqué contre toute rotation, et pouvant être débloqué et mis en rotation par l'introduction dudit organe de commande (22), caractérisé en ce que le cylindre comprend plusieurs disques (18) montés de manière rotative, indépendamment les uns des autres, autour d'un axe (17), qui sont tous munis d'un évidement (19) du type came, lequel est traversé par une tige (15) reliée au porte-contact (9) et parallèle à l'axe (17), les disques (18) présentant des évidements radiaux (20), orientés vers ladite ouverture (21), destinés à venir en prise avec des sections de commande (23) correspondantes de l'organe de commande (22).
  2. Interrupteur de sécurité selon la revendication 1, caractérisé en ce que les disques (18) sont disposés de manière axialement coulissante sur l'axe (17), et que l'organe de commande (22) présente des faces en biseau (24) pour faire coulisser les disques (18).
  3. Interrupteur de sécurité selon la revendication 1 ou 2, caractérisé en ce que la tige (15) passe à l'intérieur du carter (1) dans la direction du mouvement du porte-contact (9).
  4. Interrupteur de sécurité selon l'une des revendications 1 à 3, caractérisé en ce que le porte-contact (9) présente un support (14) du type étrier pour la tige (15).
  5. Interrupteur de sécurité selon l'une des revendications 1 à 4, caractérisé en ce que le cylindre est constitué d'une combinaison d'un nombre déterminé de disques (18) faite d'un nombre déterminé de types de disques à évidements radiaux (20) de formes différentes, et avec des épaisseurs de disque éventuellement différentes.
  6. Interrupteur de sécurité selon l'une des revendications 1 à 5, caractérisé en ce que les évidements (19) du type came présentent respectivement deux embranchements de came, mutuellement symétriques, générant une course du porte-contact (9).
  7. Interrupteur de sécurité selon l'une des revendications 1 à 6, caractérisé en ce que les évidements radiaux (20) présentent respectivement un élargissement de leur zone d'entrée permettant l'introduction de l'organe de commande (22), à partir de deux directions mutuellement perpendiculaires à travers des ouvertures correspondantes (21) du boítier.
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
DE4303367 1993-02-05
DE4303367A DE4303367C1 (de) 1993-02-05 1993-02-05 Sicherheitsschalter

Publications (3)

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

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4328296C1 (de) * 1993-08-23 1994-11-24 Euchner & Co Sicherheitsschalter
DE4328297C1 (de) * 1993-08-23 1995-02-23 Euchner & Co Sicherheitsschalter
DE4436579C2 (de) * 1994-10-13 1997-05-22 Bernstein Hans Spezialfabrik 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

Also Published As

Publication number Publication date
EP0609672A3 (fr) 1994-12-28
JP3207654B2 (ja) 2001-09-10
US5420385A (en) 1995-05-30
EP0609672A2 (fr) 1994-08-10
JPH06243762A (ja) 1994-09-02
DE4303367C1 (de) 1994-02-24
BR9400421A (pt) 1994-08-23

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