EP0840338A1 - Sicherheitsschalter mit Drehkopf - Google Patents

Sicherheitsschalter mit Drehkopf Download PDF

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Publication number
EP0840338A1
EP0840338A1 EP97402594A EP97402594A EP0840338A1 EP 0840338 A1 EP0840338 A1 EP 0840338A1 EP 97402594 A EP97402594 A EP 97402594A EP 97402594 A EP97402594 A EP 97402594A EP 0840338 A1 EP0840338 A1 EP 0840338A1
Authority
EP
European Patent Office
Prior art keywords
housing
head
safety switch
control
main direction
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
EP97402594A
Other languages
English (en)
French (fr)
Other versions
EP0840338B1 (de
Inventor
Hugues Da Dalt
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.)
Schneider Electric Industries SAS
Original Assignee
Schneider Electric SE
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 Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0840338A1 publication Critical patent/EP0840338A1/de
Application granted granted Critical
Publication of EP0840338B1 publication Critical patent/EP0840338B1/de
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 present invention relates to a safety switch of the type comprising a housing that houses electrical contact members and a fixed control head in the housing, this head can take several positions offset between them by pivot, for example 90 ° around an axis oriented in one direction main, and including a safety mechanism with rotating roller and pusher for control the contact members and at least one passage slot of a external actuator capable of controlling the safety mechanism.
  • Safety switches of this type are known.
  • Their control head generally includes a control roller capable of rotating around a axis perpendicular to the main direction, to act on the pusher. It is useful to ability to select position of control head by rotating about main direction in order to adapt to the local mounting conditions of the safety switch.
  • the invention aims to simplify the maneuver and the means of changing position of the control head in rotation in a safety switch of the type described, as well as immobilizing the head in translation relative to the housing.
  • the fixing screw can preferably be used to fix a cover of the closing box a compartment where the contact assembly is housed.
  • Figure 1 shows schematically a safety switch according to the invention.
  • Figure 2 shows in perspective from below and on a larger scale a view exploded switch.
  • Figure 3 shows an exploded perspective view from above of the control head stripped of its cover, with the corresponding parts of the front face of the housing.
  • Figure 4 is an elevational view in partial section of an alternative embodiment switch solenoid.
  • the safety switch illustrated in Figure 1 comprises on the one hand a housing 10 parallelepiped elongated along a Z axis parallel to a direction main Z1 and on the other hand a substantially cubic control head 20, fixed to the housing so as to be able to take several positions angularly differentiated by rotation around the Z axis.
  • the housing 10 has lateral faces 11a-11d as well as an upper face 11e adjacent to the head 20 and a lower face 11f provided with a bushing for conductors.
  • the front side face 11a has orifices 12 for passage for screws for fixing the switch to a rear support not shown and a or two tapped holes 13,14 for passage for a screw 15, respectively 16, fixing a removable cover 17.
  • a contact assembly C In a compartment C1 of the housing can be closed by the cover 17 is arranged a contact assembly C.
  • the housing comprises at least one opening, for example a slot 18, for the passage of a dowel or a stirrup 19 ensuring the locking in translation of the head 20.
  • the opening can only be provided on one side face of the housing.
  • the control head 20 houses a safety mechanism 21 comprising at least a control roller 22 mounted pivoting about an axis X perpendicular to Z1, as well as non-indicated elements for blocking this roller, and an axis pusher parallel to Z1, for example confused with Z, the pusher being subject to the roller and intended to actuate the mechanical contacts of the assembly C.
  • the head 20 has finally on one of its lateral faces 20a, here put in the front position, a slot 23 for guiding a safety actuator 24 of particular shape allowing in particular, during its introduction movement, to unlock the locking elements before rotating the roller 22.
  • the actuator is by example linked to an enclosure door for electrical equipment or to a door machine and moves substantially in a direction Y perpendicular to X and Z. Another passage slot can be provided for the actuator in the wall upper 20th of the head.
  • the control head 20 has a lower part 24 with a cylindrical collar 25 and an upper part 26.
  • the upper part 26 serves as a support for the safety 21, in particular to the rollers 22, and is capped by a cover 27 provided with guide slots 23 for the actuator.
  • the cover 27 is fixed to the support 26 of the mechanism by means of pins 28 or similar elements accessible outside the housing.
  • the collar 25 enters a circular opening 11g of the wall 11e of the housing and comprises from top to bottom an annular groove 30 and a set re-entrant elements, for example in the form of four notches 31, distributed over its periphery in mutual offset of 90 °.
  • stirrups 19 are provided. each penetrating into a slot 18 of a side wall of the housing, so that the lateral branches 19a, 19b of the stirrup penetrate the groove for immobilize the head relative to the housing in the direction Z1 and that the core 19c of the stirrup closes the slot 18 with respect to the outside.
  • a non-threaded locking finger 15c is provided at the end of the upper screw 15 opposite its head 15a, beyond its threaded part 15b; the finger 15c is intended to penetrate the notch at the end of the screwing stroke for prevent the head from rotating around the Z axis.
  • the screw 15 passes in an opening 17a of the cover 17 to ensure jointly with immobilization in rotation of the control head fixing the cover, which also contributes the screw 16.
  • the head 20 has a central passage 40 for the pusher 41 which extends along the Z axis and transmits to the contact assembly C the movement communicated by the mechanism 21. It will be appreciated that, in a variant where the screw 15 does not participate in the fixing the cover, it can be associated with a wall 11b-11d of the housing other as the wall 11a.
  • a washer 32 carrying four elastic indexing elements 33 distributed regularly on its periphery and a central orifice 34 of square shape; the washer is immobilized in rotation at the bottom of the opening 11g by the engagement of its central orifice on a square protuberance 11h from the bottom.
  • Elements 33 play elastically in direction Z1 and can penetrate the lower end open notches 31; this allows on the one hand to pre-index the head of control 20 in the selected rotational position, pending its immobilization in rotation by the screw 15, on the other hand to facilitate positioning of your head when you go from one position to another.
  • FIG 4 is shown an electromagnet version of the switch security according to the invention.
  • the head is again engaged in the 11g opening of the upper face of the housing, then held in translation by the engagement of the stirrup or two stirrups 19 in the annular groove 30 and in rotation by cooperation of the screw 15 with a notch 31.
  • the device described operates in the following manner. To move from one position from the head to another, we unscrew the screw 15 to release the finger 15c from the notch respective 31. We can then rotate the head by the desired angle, equal to 90 ° or multiple of 90 °, the head crushing the indexing elements 33 along Z1, up to penetration of the elements 33 into the notches 31; we block our heads in our new position by fully screwing the screw 15, the finger 15c of which engages in the new notch 31 opposite which it was brought. lt should be observed that the head 20 changes position without having to be lifted and by simple operation of a screw 15, its lower face 20f remaining constantly level with the 11th upper face of the housing. The head 20 is moreover easily removable by operating the screw 15 and the stirrup or the two stirrups 19.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Switches With Compound Operations (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP97402594A 1996-11-04 1997-10-31 Sicherheitsschalter mit Drehkopf Expired - Lifetime EP0840338B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9613627A FR2755533B1 (fr) 1996-11-04 1996-11-04 Interrupteur de securite a tete pivotante
FR9613627 1996-11-04

Publications (2)

Publication Number Publication Date
EP0840338A1 true EP0840338A1 (de) 1998-05-06
EP0840338B1 EP0840338B1 (de) 2001-10-04

Family

ID=9497442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402594A Expired - Lifetime EP0840338B1 (de) 1996-11-04 1997-10-31 Sicherheitsschalter mit Drehkopf

Country Status (6)

Country Link
US (1) US5894116A (de)
EP (1) EP0840338B1 (de)
JP (1) JP3919907B2 (de)
DE (1) DE69707081T2 (de)
ES (1) ES2161420T3 (de)
FR (1) FR2755533B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113803580A (zh) * 2021-08-10 2021-12-17 上海青舟燃气设备有限公司 一种气体报警装置的安装施工方法及其施工结构

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2785985B1 (fr) * 1998-11-18 2001-02-23 Crouzet Automatismes Detecteur de position avec mecanisme d'orientation
US6501040B2 (en) * 2001-05-18 2002-12-31 Honeywell International Inc. Dual directional cable actuated emergency stop device
DE10146828A1 (de) * 2001-09-18 2003-04-24 Euchner Gmbh & Co Zuhaltesystem eines Sicherheitsschalters mit einem Lesekopf und einem Betätiger
FR2830981B1 (fr) * 2001-10-15 2004-10-15 Schneider Electric Ind Sa Interrupteur, notamment de position, a tete orientable
FR2876217B1 (fr) * 2004-10-06 2007-04-20 Socomec Sa Sa Appareil de coupure electrique a commande frontale ou laterale
JP4396478B2 (ja) * 2004-10-21 2010-01-13 オムロン株式会社 キースイッチ
ITVI20040256A1 (it) * 2004-10-29 2005-01-29 Pizzato Elettrica Srl Interrutore elettrico ad azionamento esterno
GB0513651D0 (en) * 2005-07-02 2005-08-10 Eja Ltd Lockable switch mechanism
GB0515583D0 (en) * 2005-07-29 2005-09-07 Eja Ltd Safety switch operating mechanism
TWM286989U (en) * 2005-09-27 2006-02-01 Joemex Electric Corp Power switch protector
US7429708B1 (en) * 2007-06-22 2008-09-30 Eja, Limited Safety switch
US8004283B2 (en) * 2008-01-25 2011-08-23 Eaton Corporation Method of actuating a test function of an electrical switching apparatus at a panel and electrical switching apparatus employing the same
USD742840S1 (en) * 2013-11-13 2015-11-10 Rockwell Automation Technologies, Inc. Industrial control
ITVI20130290A1 (it) * 2013-12-06 2015-06-07 Pizzato Elettrica Srl Interruttore di sicurezza ad azionamento elettronico
ITVI20130291A1 (it) * 2013-12-06 2015-06-07 Pizzato Elettrica Srl Interruttore di sicurezza temporizzato ad azionamento manuale
JP7122851B2 (ja) * 2018-04-13 2022-08-22 株式会社キーエンス 安全スイッチ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710079A1 (de) * 1987-03-27 1988-10-06 Schunk Metall & Kunststoff Elektrischer verriegelungsschalter
DE3943377C1 (en) * 1989-12-30 1991-02-21 Kloeckner-Moeller Elektrizitaetsgesellschaft Mbh, 5300 Bonn, De Locking closure for electrical switching appts. housing - has arresting nose on cover engaging recess in housing and locking part arresting snap coupling
DE4238016A1 (de) * 1992-11-11 1994-05-19 Kloeckner Moeller Gmbh Vorrichtung zum Betreiben eines Positionsschalters

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4963706A (en) * 1989-01-12 1990-10-16 Eja Engineering Company Limited Safety switch assemblies
EP0553885B2 (de) * 1992-01-31 2003-12-17 Omron Corporation Sicherheitsschalter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3710079A1 (de) * 1987-03-27 1988-10-06 Schunk Metall & Kunststoff Elektrischer verriegelungsschalter
DE3943377C1 (en) * 1989-12-30 1991-02-21 Kloeckner-Moeller Elektrizitaetsgesellschaft Mbh, 5300 Bonn, De Locking closure for electrical switching appts. housing - has arresting nose on cover engaging recess in housing and locking part arresting snap coupling
DE4238016A1 (de) * 1992-11-11 1994-05-19 Kloeckner Moeller Gmbh Vorrichtung zum Betreiben eines Positionsschalters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113803580A (zh) * 2021-08-10 2021-12-17 上海青舟燃气设备有限公司 一种气体报警装置的安装施工方法及其施工结构
CN113803580B (zh) * 2021-08-10 2023-03-24 上海青舟燃气设备有限公司 一种气体报警装置的安装施工方法及其施工结构

Also Published As

Publication number Publication date
DE69707081D1 (de) 2001-11-08
JP3919907B2 (ja) 2007-05-30
FR2755533B1 (fr) 1998-12-24
FR2755533A1 (fr) 1998-05-07
US5894116A (en) 1999-04-13
EP0840338B1 (de) 2001-10-04
ES2161420T3 (es) 2001-12-01
JPH10223099A (ja) 1998-08-21
DE69707081T2 (de) 2002-05-29

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