EP0727797B1 - Interrupteur de sécurité - Google Patents

Interrupteur de sécurité Download PDF

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Publication number
EP0727797B1
EP0727797B1 EP96101571A EP96101571A EP0727797B1 EP 0727797 B1 EP0727797 B1 EP 0727797B1 EP 96101571 A EP96101571 A EP 96101571A EP 96101571 A EP96101571 A EP 96101571A EP 0727797 B1 EP0727797 B1 EP 0727797B1
Authority
EP
European Patent Office
Prior art keywords
safety switch
housing
switch according
actuating cylinder
plunger
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
EP96101571A
Other languages
German (de)
English (en)
Other versions
EP0727797A1 (fr
Inventor
Klaus Schulze
Siegfried Schulz
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 EP0727797A1 publication Critical patent/EP0727797A1/fr
Application granted granted Critical
Publication of EP0727797B1 publication Critical patent/EP0727797B1/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
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5844—Electric connections to or between contacts; Terminals making use of wire-gripping clips or springs
    • H01H1/585—Electric connections to or between contacts; Terminals making use of wire-gripping clips or springs and piercing the wire insulation
    • 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 Receiving recesses for each housing having a fastening screw, in which an actuating roller is arranged, which with one in the Straight ram coupled to the electrical contact-bearing plunger and by means of one in the housing via a side and / or front Insertion opening of the insertable actuator can be rotated about its axis is so that the electrical contacts of the plunger are fixed to the housing electrical contacts can be brought into engagement.
  • Such a safety switch is known from DE-C-3 943 376 known, which is a cuboid housing with a rectangular cross section has, in which an actuating roller is arranged, which with a in tappet coupled to the housing, which carries straight electrical contacts and by means of one in the housing via a side and a front insertion opening of insertable actuator after unlocking its axis is rotatable, so that the electrical contacts of the plunger can be brought into engagement with electrical contacts fixed to the housing.
  • the Insertion openings are arranged in a slot-like manner and in parallel in such a way that that only one direction of rotation of the actuating roller is required.
  • the Insertion openings are arranged in a cap by means of screws on the housing according to a desired installation position, which is also from two that extend from the front to the rear of the housing Screw holes intended for attaching the housing, attached becomes.
  • a desired installation position which is also from two that extend from the front to the rear of the housing Screw holes intended for attaching the housing, attached becomes.
  • From DE-C-3 330 109 is a similar safety switch known of a cap with a total of four parallel, slit-like Has insertion openings for an actuator, resulting in a conversion superfluous, but on the other hand the actuating roller on both sides must be rotatable and also an installation variant with a rotation of the Housing at 90 ° around its longitudinal axis without the attachment of an additional one Housing support is possible, with four if necessary Provide insertion openings with dust protection or a closure are.
  • the object of the invention is a safety switch to create the type mentioned above, which enables the safety switch Can be used in as many installation variants as possible without modification.
  • the housing is transverse its longitudinal direction has a square cross section and in Longitudinal direction in its central area in a plane transverse to the longitudinal direction arranged on each side along the respective side extending receiving recess open at both ends for a fastening screw having.
  • 1 and 2 show a safety switch in two by Cuts offset by 90 °.
  • Fig. 3 shows a housing-fixed contact for the safety switch 1 and 2.
  • Fig. 4 shows an embodiment for an actuating roller with associated actuator for the safety switch according to FIG. 1 and 2 in perspective and in section.
  • FIG. 5 and 6 show two further exemplary embodiments of a Actuating roller with associated actuator.
  • the safety switch shown comprises a housing 1 consisting from a middle part 2, one thus in particular captive Screws 3 screwed, cap-like cover 4 and one with the Middle part 2 in particular connected by a snap connection cap 5.
  • the housing 1 has a square transverse to its longitudinal direction Cross section, and the central part 2 has in the longitudinal direction in its middle area arranged in a plane transverse to the longitudinal direction each side has one along both sides Ends of open receiving recess 6 for a fastening screw, with which the safety switch or the like on a wall. attachable is.
  • the receiving recesses 6 can, as shown in Fig. 1, be designed as a circumferential groove open to the outside, but they can also consist of corresponding intersecting holes 6a, sh. Fig. 2. Appropriately, the receiving recesses 6 are at both ends with a depression 7 for receiving the head of a fastening screw Mistake.
  • the cap 5 has both a side and an end Insertion opening 8, which is slit-like and parallel are arranged with respect to one another, the lateral insertion opening 8 in a side wall of the cap 5 and the front insertion opening 8 adjacent to the side wall of the cap opposite this side wall 5 is located.
  • the middle part 2 receives an axis 9, which by means of two Pins 10 set in inner lateral recesses 11 of the middle part 2 is.
  • the pins 10 can simultaneously the cap 5 against Secure unauthorized removal by extending into the cap 5 and sit with a press fit in the middle part 2.
  • the axis 9 carries one Actuating roller 12, which is freely rotatable about the axis 9 and on Outer periphery carries two radial recesses 13 which are adjacent to the are two insertion openings 8, so that one in one of the insertion openings 8 introduced actuator 14, the actuating roller 12 in the direction of arrow 15 rotates.
  • a plunger 16 is coupled to the actuating roller 12 is straight in the housing 1 and generally two electrical Contacts 17 carries, which by actuating the actuating roller 12 with housing-fixed, electrical contacts 18 in or out of engagement with Close and / or open circuits.
  • the cover 4 has an insertion end 19 for the moisture-proof introduction of an electrical lead.
  • electrical contacts 18 are expedient designed as insulation displacement contacts 18 'with an insulation displacement slot 18 ", so that the individual wires of the electrical lead without stripping inserted into the cutting contact slots 18 "and through the this causes the insulation to be cut and jammed contact the wire can be connected to contact 18. From according to punched and bent sheet metal sections existing contacts 18 are received by slots of the housing 1 and have angled contact sections 20 which are movable with the plunger 16 Contacts 17 can be brought into or out of engagement.
  • the housing area in which the contacts 17, 18 are located is sealed to the outside, by a circumferential, from a groove of the middle part 2 partially received sealing ring 21st and by a bellows seal arranged between the middle part 2 and the tappet 16 22, which also have corresponding circumferential grooves in the central part 2 and the plunger 16 added to its inner and outer circumference becomes.
  • the actuating roller 12 is in accordance with the embodiment of FIG Fig. 4 from a variety of independently rotatable on the Axis 9 mounted, in this embodiment not under formation of spaces axially displaceable disks 23 with different radial recesses 13 for engagement with corresponding Operating sections 14 'of the actuator 14 and all with one same control curve-like recess 24 are provided.
  • Through the aligned recesses 24 extends parallel to the axis 9 Pin 25, which is received by a bracket-like holder 26, the is in turn connected to the plunger 16.
  • the bracket-like bracket 26 is laterally in the middle part 2 of the housing 1 in its longitudinal direction performed so that the plunger 16 is guided straight.
  • a bracket 27 is provided on the axis 9, the laterally elongated holes 278 for passage and possibly for guiding the Has pin 25. Between the bracket 27 and the plunger 16 is one Compression spring 29 arranged which the plunger 16 in the direction of the cover 4th preloaded.
  • the pin 24 can also be connected to the tappet 16 via connecting rods be, however, this will make the housing 1 relatively long in the longitudinal direction.
  • each pair of webs 33 forms a clamping recess 34 between them, into which the respective line wire 32 is inserted.
  • the insulation displacement contacts 18 'between two adjacent pairs of webs 33 which form a line core 32 have taken one across the line wire 32, cut with the Cutting contact slot 18 "the insulation of the wire 32 and make in this way the electrical contact between this and the Insulation displacement contact 18 '.
  • a one-piece actuating roller can also be used 12 are used, as shown in Fig. 5, laterally has two bolts 35 arranged in a rotationally fixed manner in the housing 1, which also can be designed as locking disks, by springs 36 against the actuating roller 12 are axially biased and with the actuating roller 12 are engaged in the starting position.
  • the bolts 35 are pressed axially outwards, the actuating roller 12 released and rotated so that the Ram 16 is moved accordingly.
  • the latch 35 can also be radial, spring-biased against corresponding recesses in the actuating roller 12, be agile.
  • the leaf spring 30 does not need in this embodiment to be comb-like.
  • a middle, fixed latch 36 may be provided, Fig. 6, while laterally thereof one disk 23 each of the actuating roller 12 axially against the outside a spring force can be pressed into an actuating position.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Mechanisms For Operating Contacts (AREA)

Claims (20)

  1. Interrupteur de sécurité comportant un boítier (1) muni d'évidements (6) pour la réception d'une vis de fixation respectivement, dans lequel est disposé un barillet de commande (12) qui est accouplé à un coulisseau (16) portant des contacts électriques (17) et se déplaçant de manière rectiligne à l'intérieur dudit boítier (1), ledit barillet (12) pouvant tourner autour de son axe au moyen d'un organe de commande (14) insérable dans le boítier (1) à travers un orifice d'introduction (8) placé latéralement et/ou sur la face frontale, de telle sorte que lesdits contacts électriques (17) du coulisseau (16) peuvent être amenés en contact avec des contacts électriques (18) solidaires du boítier, caractérisé en ce que ledit boítier (1) présente, transversalement à sa direction longitudinale, une section transversale carrée et un évidement de réception (6) ouvert aux deux extrémités destiné à une vis de fixation, cet évidement étant disposé sur chaque côté en direction longitudinale dans la zone centrale du boítier dans un plan transversal à cette direction longitudinale et s'étendant le long de ce côté respectif.
  2. Interrupteur de sécurité selon la revendication 1, caractérisé en ce que les évidements de réception (6) sont munis aux deux extrémités respectivement d'un renfoncement (7) destiné à recevoir une tête de vis.
  3. Interrupteur de sécurité selon la revendication 1 ou 2, caractérisé en ce que les évidements de réception (6) sont réalisés en forme de gorges ouvertes vers l'extérieur.
  4. Interrupteur de sécurité selon la revendication 1 ou 2, caractérisé en ce que les évidements de réception (6) sont réalisés sous la forme de perçages.
  5. Interrupteur de sécurité selon l'une des revendications 1 à 4, caractérisé en ce que les orifices d'introduction (8) sont disposés l'un par rapport à l'autre de telle manière que, lors de l'introduction de l'organe de commande (14), le barillet (12) ne peut tourner que dans une seule direction.
  6. Interrupteur de sécurité selon l'une des revendications 1 à 5, caractérisé en ce que le barillet de commande (12) présente sur sa périphérie un cran destiné à un ressort (30) fixant le barillet (12) dans sa position de départ.
  7. Interrupteur de sécurité selon l'une des revendications 1 à 6, caractérisé en ce que le boítier (1) comprend une partie centrale (2) présentant les évidements (6) et supportant le barillet (12), un couvercle (4) sur sa face terminale du type chapeau qui reçoit les contacts (18) solidaires au carter et un chapeau (5), muni des orifices d'introduction (8), pour la partie centrale (2).
  8. Interrupteur de sécurité selon la revendication 7, caractérisé en ce que la partie centrale (2) est vissée sur le couvercle (4) du type chapeau, avec interposition d'un joint périphérique (21), et est reliée au coulisseau (16) par l'intermédiaire d'un joint à soufflet (22).
  9. Interrupteur de sécurité selon la revendication 7 ou 8, caractérisé en ce que le chapeau (5) est relié à la partie centrale (2) par un dispositif à encliquetage.
  10. Interrupteur de sécurité selon l'une des revendications 7 à 9, caractérisé en ce que le coulisseau (16) se déplace de manière rectiligne par rapport à la partie centrale (2).
  11. Interrupteur de sécurité selon l'une des revendications 1 à 10, caractérisé en ce que le barillet (12) est disposé sur un axe (9) dont les extrémités sont réceptionnées dans des logements (11) pratiqués dans le boítier et immobilisées au moyen de goujons (10).
  12. Interrupteur de sécurité selon l'une des revendication 1 à 11, caractérisé en ce que le coulisseau (16) est muni d'un support (26) du type étrier, lequel porte une tige (25) disposée à l'intérieur du boítier (1) longitudinalement à celui-ci et s'étendant parallèlement à l'axe du barillet (12), cette tige passant au moins à travers un évidement (24) en forme de came de guidage ménagé dans le barillet (12).
  13. Interrupteur de sécurité selon l'une des revendications 1 à 12, caractérisé en ce que le coulisseau (16) est poussé dans une direction l'écartant du barillet (12) au moyen d'un ressort (29) monté entre une face de butée (27) solidaire du boítier et se trouvant au voisinage du barillet (12) et une face de butée propre audit coulisseau, et en ce que le coulisseau (16) peut être déplacé en direction du barillet (12), en s'opposant à la force du ressort (29), lorsque le barillet (12) est actionné.
  14. Interrupteur de sécurité selon l'une des revendications 1 à 13, caractérisé en ce que le barillet (12) comprend plusieurs disques (23) montés de manière rotative autour d'un axe (9) indépendamment les uns des autres, lesquels disques présentent des évidements radiaux (13) différents entre eux, orientés au moins vers l'un des orifices d'introduction (8), afin d'entrer en contact avec des parties actives (14') de l'organe de commande (14).
  15. Interrupteur de sécurité selon l'une des revendications 1 à 14, caractérisé en ce que le barillet (12) peut être bloqué par au moins un verrou (35) poussé par un ressort en opposition avec ledit barillet et pouvant être amené en contact avec celui-ci, le verrou pouvant être déverrouillé par l'introduction de l'organe de commande (14).
  16. Interrupteur de sécurité selon l'une des revendications 1 à 14, caractérisé en ce que le barillet (12) comprend plusieurs disques (23) montés, indépendamment les uns des autres, de manière rotative autour d'un axe (9), les disques (23) se trouvant à l'extérieur étant poussés par un ressort vers l'intérieur dans une position de blocage pouvant être débloquée au moyen de l'organe de commande (14).
  17. Interrupteur de sécurité selon l'une des revendications 1 à 16, caractérisé en ce que les contacts électriques (18) solidaires du boítier sont réalisés sous la forme de contacts (18') par déplacement d'isolation.
  18. Interrupteur de sécurité selon la revendication 17, caractérisé en ce que des fils conducteurs (32) d'un câble de raccordement électrique peuvent être raccordés aux contacts par déplacement d'isolation (18') par mise en place et fixation d'un couvercle (4) du boítier (1) sur le boítier (1).
  19. Interrupteur de sécurité selon la revendication 18, caractérisé en ce que pour chaque fil conducteur (32) sont prévues deux paires de barrettes (33) écartées l'une de l'autre, lesdites barrettes (33) de chaque paire définissant un logement serre-câble (34) pour les fils conducteurs (32) et en ce que le contact par déplacement d'isolation (18') est introduit entre les deux paires.
  20. Interrupteur de sécurité selon la revendication 19, caractérisé en ce que les paires de barrettes (33) sont disposées dans les angles du boítier (1), notamment dans les angles du couvercle (4), avec disposition en diagonale des logements serre-câble (34).
EP96101571A 1995-02-14 1996-02-03 Interrupteur de sécurité Expired - Lifetime EP0727797B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19504744A DE19504744A1 (de) 1995-02-14 1995-02-14 Sicherheitsschalter
DE19504744 1995-02-14

Publications (2)

Publication Number Publication Date
EP0727797A1 EP0727797A1 (fr) 1996-08-21
EP0727797B1 true EP0727797B1 (fr) 1998-01-07

Family

ID=7753835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96101571A Expired - Lifetime EP0727797B1 (fr) 1995-02-14 1996-02-03 Interrupteur de sécurité

Country Status (5)

Country Link
US (1) US5821484A (fr)
EP (1) EP0727797B1 (fr)
JP (1) JP3657048B2 (fr)
BR (1) BR9600727A (fr)
DE (2) DE19504744A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10238852B3 (de) * 2002-08-24 2004-01-29 K.A. Schmersal Gmbh & Co Schaltgerät

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GB9524297D0 (en) * 1995-11-28 1996-01-31 Eja Eng Plc Switch assemblies
DE19708359C1 (de) * 1997-03-01 1998-07-02 K A Schmersal Gmbh & Co Kg Überwachungseinrichtung für wenigstens einen Sicherheitsschalter
ITVI980017A1 (it) * 1998-02-02 1999-08-02 Pizzato Elettrica Srl Interruttore elettrico di sicurezza
US6037551A (en) * 1998-02-26 2000-03-14 Idec Izumi Corporation Safety switch
FR2817653B1 (fr) * 2000-12-05 2003-02-21 Crouzet Automatismes Interrupteur de position a cle
US6501040B2 (en) * 2001-05-18 2002-12-31 Honeywell International Inc. Dual directional cable actuated emergency stop device
US6720508B2 (en) * 2001-07-06 2004-04-13 Omron Corporation Door switches
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
JP4747888B2 (ja) 2006-03-09 2011-08-17 オムロン株式会社 スイッチ
US7446273B2 (en) * 2007-01-03 2008-11-04 Jokab Safety North America, Inc Safety lockout system for interrupting unintentional flow of electrical current controlled by a safety switch
US9606102B2 (en) 2013-01-26 2017-03-28 Denovo Sciences, Inc. System and method for capturing and analyzing cells
DE102015002845B4 (de) 2015-03-06 2018-02-22 E. Dold & Söhne KG Sicherheitsschalteranordnung
DE102015002863A1 (de) 2015-03-06 2016-09-08 E. Dold & Söhne KG Sicherheitsschalteranordnung
WO2017210313A1 (fr) * 2016-06-01 2017-12-07 Hubbell Incorporated Dispositifs électriques résistants à l'eau
US11121498B2 (en) 2016-06-01 2021-09-14 Hubbell Incorporated Water resistant electrical devices

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JP3281384B2 (ja) * 1992-06-02 2002-05-13 イー・ジェイ・エイ・エンジニアリング・パブリック・リミテッド・カンパニー 安全スイッチ装置
WO1994006141A1 (fr) * 1992-08-31 1994-03-17 Idec Izumi Corporation Ensemble interrupteur de securite
DE4303367C1 (de) * 1993-02-05 1994-02-24 Schmersal K A Gmbh & Co Sicherheitsschalter
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10238852B3 (de) * 2002-08-24 2004-01-29 K.A. Schmersal Gmbh & Co Schaltgerät

Also Published As

Publication number Publication date
BR9600727A (pt) 1997-12-23
DE59600067D1 (de) 1998-02-12
JPH08249986A (ja) 1996-09-27
US5821484A (en) 1998-10-13
JP3657048B2 (ja) 2005-06-08
DE19504744A1 (de) 1996-09-12
EP0727797A1 (fr) 1996-08-21

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