EP0727797A1 - Interrupteur de sécurité - Google Patents

Interrupteur de sécurité Download PDF

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Publication number
EP0727797A1
EP0727797A1 EP96101571A EP96101571A EP0727797A1 EP 0727797 A1 EP0727797 A1 EP 0727797A1 EP 96101571 A EP96101571 A EP 96101571A EP 96101571 A EP96101571 A EP 96101571A EP 0727797 A1 EP0727797 A1 EP 0727797A1
Authority
EP
European Patent Office
Prior art keywords
housing
safety switch
switch according
actuating roller
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.)
Granted
Application number
EP96101571A
Other languages
German (de)
English (en)
Other versions
EP0727797B1 (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 receptacle for a housing each having a fastening screw, in which an actuating roller is arranged, which is coupled to a straight guided in the housing, carrying electrical contacts plunger and insertable into the housing via a lateral and / or front insertion opening Actuator is rotatable about its axis, so that the electrical contacts of the plunger can be brought into engagement with electrical contacts fixed to the housing.
  • Such a safety switch is known from DE-C-3 943 376, which has a cuboid housing with a rectangular cross-section, in which an actuating roller is arranged, which is coupled to a plunger which carries straight contacts in the housing and carries a plunger into the housing After unlocking, an actuator which can be inserted via a lateral and a front insertion opening can be rotated about its axis, 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 only one direction of rotation of the actuating roller is required.
  • the insertion openings are arranged in a cap which is fastened to the housing by means of screws in accordance with a desired installation position, which is also determined by two screw holes for attaching the housing which extend from the front to the rear of the housing.
  • the object of the invention is to provide a safety switch of the type mentioned at the outset, which enables the safety switch to be used in as many installation variants as possible without modification.
  • the housing has a square cross section transversely to its longitudinal direction and is arranged in the longitudinal direction in its central region in a plane transverse to the longitudinal direction on each side of a receptacle for a fastening screw which extends along the respective side and is open at both ends having.
  • 1 and 2 show a safety switch in two cuts offset by 90 °.
  • FIGS. 1 and 2 shows a contact fixed to the housing for the safety switch according to FIGS. 1 and 2.
  • FIG. 4 shows an exemplary embodiment for an actuating roller with an associated actuator for the safety switch according to FIGS. 1 and 2 in perspective and in section.
  • 5 and 6 show two further exemplary embodiments for an actuating roller with an associated actuator.
  • the safety switch shown comprises a housing 1 consisting of a central part 2, a cap-like cover 4 screwed to it, in particular by captive screws 3, and a cap 5 connected to the central part 2, in particular via a snap connection.
  • the housing 1 has a square cross section transverse to its longitudinal direction
  • the central part 2 has in the longitudinal direction in its central region in a plane transverse to the longitudinal direction on each side a along the respective side, at both ends open receiving recess 6 for a fastening screw with which the safety switch on a wall or. the like is attachable.
  • the receiving recesses 6 can, as shown in Fig. 1, be formed as a circumferential, outwardly open groove, but they can also consist of correspondingly intersecting holes 6a, see FIG. Fig. 2. Expediently, the receiving recesses 6 are provided at both ends with a depression 7 for receiving the head of a fastening screw.
  • the cap 5 has both a lateral and an end insertion opening 8, which are slit-like and arranged parallel to one another, the lateral insertion opening 8 in a side wall of the cap 5 and the end insertion opening 8 adjacent to the side wall of the cap opposite this side wall 5 is located.
  • the two opposite side walls of the cap 5, one of which has the lateral insertion opening 8, are latched to the central part 2 in the exemplary embodiment shown.
  • the middle part 2 receives an axis 9 which is fixed by means of two pins 10 in inner lateral recesses 11 of the middle part 2.
  • the pins 10 can at the same time secure the cap 5 against unauthorized removal by extending into the cap 5 and sitting with a press fit in the middle part 2.
  • the axis 9 carries an actuating roller 12 which is freely rotatable about the axis 9 and on Outer periphery carries two radial recesses 13, which are located adjacent to the two insertion openings 8, so that an actuator 14 inserted into one of the insertion openings 8 rotates the actuating roller 12 in the direction of arrow 15.
  • a plunger 16 is coupled, which is guided straight in the housing 1 and generally carries two electrical contacts 17, which are actuated by actuating the actuating roller 12 with electrical contacts 18 which are fixed to the brains, in or out of engagement for closing and / or opening Circuits.
  • the cover 4 has an insertion end 19 on the end face for the moisture-tight introduction of an electrical supply line.
  • electrical contacts 18 are expediently designed as insulation displacement contacts 18 'with a cutting contact slot 18' ', so that the individual wires of the electrical lead are inserted without stripping into the cutting contact slots 18' 'and by the resulting separation of the insulation and clamping Contact the wire with the contact 18 can be connected.
  • the contacts 18, which consist of correspondingly punched and bent sheet metal sections, are received by slots in the housing 1 and have angled contact sections 20 which can be brought into or out of engagement with the contacts 17 movable with the plunger 16.
  • the housing area, in which the contacts 17, 18 are located, is sealed from the outside, namely by a circumferential sealing ring 21, which is partially received by a groove in the middle part 2, and by a bellows seal 22 arranged between the middle part 2 and the plunger 16, which likewise of corresponding, circumferential grooves of the middle part 2 and the plunger 16 is received on their inner and outer circumference.
  • the actuating roller 12 consists of a plurality of disks 23 which are rotatably mounted on the axis 9 independently of one another and in this exemplary embodiment cannot be displaced in the axial direction with the formation of gaps and which have different radial recesses 13 for engagement with corresponding actuating sections 14 ' of the actuator 14 and all with one same control curve-like recess 24 are provided.
  • Extending through the aligned recesses 24 is a pin 25 parallel to the axis 9, which is received by a bracket-like holder 26, which in turn is connected to the plunger 16.
  • the bracket-like bracket 26 is guided laterally in the middle part 2 of the housing 1 in the longitudinal direction thereof, so that the plunger 16 is guided straight.
  • a bracket 27 is provided on the axis 9 and has elongated holes 278 on the side for passage and optionally for guiding the pin 25. Between the bracket 27 and the plunger 16, a compression spring 29 is arranged, which biases the plunger 16 in the direction of the cover 4.
  • the pin 25 is moved by rotating the cam-like recesses 24 in the disks 23 from the illustrated initial position in the direction of the cap 5, as a result of which the plunger 16 is also moved in the direction of the cap 5 against the compression spring 29, thereby one trigger the appropriate switching process.
  • the assumption of the zero or initial position of the disks 23 is supported by a comb-like leaf spring 30 which is supported on the bracket 27 or is thus formed in one piece and which engages in circumferential recesses 31 of the disks 23 in this position.
  • the pin 24 can also be connected to the tappet 16 via connecting rods, but as a result, the housing 1 becomes relatively long in the longitudinal direction.
  • spaced double pairs of webs 33 are arranged for receiving line wires 32, each pair of webs 33 forming a clamping recess 34 between them, into which the respective line wire 32 is inserted.
  • the insulation displacement contacts 18 ′ are immersed between two adjacent pairs of webs 33, which have a cable core 32 have received, transversely to the cable core 32, cut the insulation of the cable core 32 with the cutting contact slot 18 ′′ and in this way establish the electrical contact between the latter and the insulation displacement contact 18 ′.
  • the double pairs of webs 33 are arranged in the corners of the cover 4, so that the line wires 32 are received in a diagonal direction.
  • a one-piece actuating roller 12 can also be used, which, as shown in FIG. 5, has two latches 35 arranged in the housing 1 in a rotationally fixed manner, which can also be designed as locking disks, axially pretensioned against the actuating roller 12 by springs 36 are and are in engagement with the actuating roller 12 in the starting position.
  • the suitable actuator 14 By inserting the suitable actuator 14, the bolts 35 are pressed axially outward, the actuating roller 12 is released and rotated, so that the plunger 16 is displaced accordingly.
  • the latch 35 can also be movable radially, spring-biased against corresponding recesses in the actuating roller 12.
  • the leaf spring 30 need not be comb-like in this embodiment.
  • a central, stationary latch 36 can also be provided, FIG. 6, while laterally a disk 23 of the actuating roller 12 can be pressed axially outward against an elastic force 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)
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
DE19504744 1995-02-14
DE19504744A DE19504744A1 (de) 1995-02-14 1995-02-14 Sicherheitsschalter

Publications (2)

Publication Number Publication Date
EP0727797A1 true EP0727797A1 (fr) 1996-08-21
EP0727797B1 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 (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933794A2 (fr) * 1998-02-02 1999-08-04 Pizzato Elettrica S.r.l. Interrupteur de sécurité électrique
FR2817653A1 (fr) * 2000-12-05 2002-06-07 Crouzet Automatismes Interrupteur de position a cle
EP1394827A2 (fr) * 2002-08-24 2004-03-03 K.A. SCHMERSAL GmbH & Co. Dispositif commutateur

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
EP0939415B1 (fr) * 1998-02-26 2005-12-14 Idec Izumi Corporation Interrupteur de sécurité
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
US9752181B2 (en) 2013-01-26 2017-09-05 Denovo Sciences, Inc. System and method for capturing and analyzing cells
DE102015002863A1 (de) 2015-03-06 2016-09-08 E. Dold & Söhne KG Sicherheitsschalteranordnung
DE102015002845B4 (de) 2015-03-06 2018-02-22 E. Dold & Söhne KG Sicherheitsschalteranordnung
MX2018014852A (es) 2016-06-01 2019-04-24 Hubbell Inc Dispositivos electricos resistentes al agua.
US11121498B2 (en) 2016-06-01 2021-09-14 Hubbell Incorporated Water resistant electrical devices

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550880A1 (fr) * 1983-08-20 1985-02-22 Schmersal K A Gmbh & Co Interrupteur de securite, notamment pour les portes d'ascenseurs
DE4031348A1 (de) * 1990-10-04 1991-04-11 Kronenberg Gmbh H & J Sicherheitsschalter
FR2655187A1 (fr) * 1989-11-27 1991-05-31 Telemecanique Mobile d'actionnement a cle pour interrupteur de securite.
DE3943376C1 (fr) * 1989-12-30 1991-06-20 Kloeckner-Moeller Gmbh, 5300 Bonn, De

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1959469A1 (de) * 1969-11-27 1971-06-03 Bosch Gmbh Robert Elektrischer Endschalter
DE7301548U (de) * 1973-01-17 1973-08-02 Mardach Kabib Mehrstufenschalter
US4135069A (en) * 1976-11-26 1979-01-16 Cutler-Hammer, Inc. Completely insulated toggle switch
US4163127A (en) * 1978-01-11 1979-07-31 J. H. Electric Co., Inc. Position sensitive safety switch
US4658102A (en) * 1984-09-08 1987-04-14 K. A. Schmersal Gmbh & Co. Electric switch
DE3819753A1 (de) * 1988-06-10 1989-12-14 Kronenberg Gmbh H & J Sicherheitsschalter
US4963706A (en) * 1989-01-12 1990-10-16 Eja Engineering Company Limited Safety switch assemblies
AU4337493A (en) * 1992-06-02 1993-12-30 Eja Engineering Plc Safety switch assemblies
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
DE4338910C1 (de) * 1993-11-15 1995-02-16 Bernstein Hans Spezialfabrik Sicherheitsschalter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2550880A1 (fr) * 1983-08-20 1985-02-22 Schmersal K A Gmbh & Co Interrupteur de securite, notamment pour les portes d'ascenseurs
FR2655187A1 (fr) * 1989-11-27 1991-05-31 Telemecanique Mobile d'actionnement a cle pour interrupteur de securite.
DE3943376C1 (fr) * 1989-12-30 1991-06-20 Kloeckner-Moeller Gmbh, 5300 Bonn, De
DE4031348A1 (de) * 1990-10-04 1991-04-11 Kronenberg Gmbh H & J Sicherheitsschalter

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933794A2 (fr) * 1998-02-02 1999-08-04 Pizzato Elettrica S.r.l. Interrupteur de sécurité électrique
EP0933794A3 (fr) * 1998-02-02 2000-01-12 Pizzato Elettrica S.r.l. Interrupteur de sécurité électrique
FR2817653A1 (fr) * 2000-12-05 2002-06-07 Crouzet Automatismes Interrupteur de position a cle
EP1394827A2 (fr) * 2002-08-24 2004-03-03 K.A. SCHMERSAL GmbH & Co. Dispositif commutateur
EP1394827A3 (fr) * 2002-08-24 2005-09-28 K.A. SCHMERSAL GmbH & Co. Dispositif commutateur

Also Published As

Publication number Publication date
DE19504744A1 (de) 1996-09-12
BR9600727A (pt) 1997-12-23
EP0727797B1 (fr) 1998-01-07
JPH08249986A (ja) 1996-09-27
DE59600067D1 (de) 1998-02-12
US5821484A (en) 1998-10-13
JP3657048B2 (ja) 2005-06-08

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