EP3011576A1 - Interrupteur de sécurité actionnable par pression, à fonction de contrôle - Google Patents

Interrupteur de sécurité actionnable par pression, à fonction de contrôle

Info

Publication number
EP3011576A1
EP3011576A1 EP14732155.8A EP14732155A EP3011576A1 EP 3011576 A1 EP3011576 A1 EP 3011576A1 EP 14732155 A EP14732155 A EP 14732155A EP 3011576 A1 EP3011576 A1 EP 3011576A1
Authority
EP
European Patent Office
Prior art keywords
switch
safety switch
signaling
pin
actuating
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
EP14732155.8A
Other languages
German (de)
English (en)
Other versions
EP3011576B1 (fr
EP3011576B8 (fr
Inventor
Artur Wiese
Frank Bruchschmidt
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.)
Eaton Intelligent Power Ltd
Original Assignee
Eaton Electrical IP 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 Eaton Electrical IP GmbH and Co KG filed Critical Eaton Electrical IP GmbH and Co KG
Priority to PL14732155T priority Critical patent/PL3011576T3/pl
Publication of EP3011576A1 publication Critical patent/EP3011576A1/fr
Publication of EP3011576B1 publication Critical patent/EP3011576B1/fr
Application granted granted Critical
Publication of EP3011576B8 publication Critical patent/EP3011576B8/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/02—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch
    • H01H3/022—Emergency operating parts, e.g. for stop-switch in dangerous conditions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/52—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state immediately upon removal of operating force, e.g. bell-push switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/50—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member
    • H01H13/62—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a single operating member the contact returning to its original state upon manual release of a latch

Definitions

  • the invention relates to a safety switch with monitoring function.
  • Such safety switches are in various embodiments, even under the
  • Designation command and / or signaling devices known. They are used in control panels, elevators, machines, etc. to operate electrical controls. In potentially dangerous situations, the operation of the safety switch will open or close relevant circuits. As well-known examples, reference may be made to the documents DE 199 60 695 A1 and DE 41 01 493 C2.
  • Such a safety switch comprises a switch head with plunger (as actuating means), which is mounted in a housing wall in a receiving opening.
  • the longitudinal axis of the safety switch is perpendicular to the plane of the housing wall.
  • the safety switch is mounted from the inside of the housing wall with a threaded ring.
  • the plunger of the safety switch is set up and installed so that it acts on its actuation (from the rest position) in the switching position with an actuating stroke contacts a switch module.
  • the essential function of the safety switch is that upon actuation (pushing in, pressing in) it influences the contacts of the switch module in such a way that an OFF switching function and / or warning function occurs. The most common is the
  • Safety switch used for an emergency stop function which is why the safety switch is also referred to as emergency stop button.
  • the operation of the safety switch can be connected in the OFF switching position (in particular in an emergency stop circuit) with a latch.
  • the housing is designed so that it has closure means that can only be opened or removed by an unauthorized access (by mechanical force). The impermissible access to the housing is thus immediately recognizable.
  • pressure-actuated safety switches there is the problem that incorrect assembly of the switch head and switch module or inadmissible separation of the switch head and switch module from the outside is not recognizable. Such a separation can be done by destruction of the assembly or by tampering in the assembly.
  • Switching block of the switch module is designed as a message switching block.
  • the switching block designed as a signaling switching block is permanently actuated by means of an actuating pin.
  • an error case can be monitored, in which the message switching block is detached from the housing wall with the actuating means mounted therein.
  • the signaling switching block changes its switching state, whereby an error signal is output.
  • Control function occupied so that the occupied with the control function switching block for other switching functions eliminated. It is the object of the invention to provide an arrangement of a safety switch, in which a signaling switching block is formed, which is present solely for the purpose of a control function.
  • the essence of the invention is that the switch module to one in a
  • a monitoring signal can be output when on the safety switch and / or Casing an improper access has occurred and thereby the assembly of the switch head (actuator) and switch module is changed, or if a faulty assembly is present.
  • the contact elements are acted upon in the assembled state of the safety switch by an actuating pin.
  • the signaling switching block is laterally offset next to the plurality of switch blocks comprehensive switch module, in this case the signaling contact is associated with a (rigidly arranged) actuating pin.
  • the actuating element of the signaling contact and the actuating pin are outside the operating range of the actuating means (plunger) of the safety switch.
  • the safety and monitoring function consists in outputting the signaling or monitoring signal when the signaling current path is open and / or opening a circuit in which one or more safety-relevant machines are operated and the operated machines are (automatically) switched off.
  • the actuating pin may be formed on a pin retaining plate, which together from the fastening means with the switch head from the inside of the housing wall to the
  • the pin retaining plate can be formed with a twist protection for the mounting position on the mounting hole.
  • At least one actuating pin may be formed on an inner side of the housing wall, preferably integrally with the housing wall, wherein the at least one actuating pin protrudes perpendicularly from the housing wall.
  • the housing wall may be formed as a surface of a hood or as a surface of a housing cover.
  • the signaling current path is an electrical circuit that outputs a warning signal when opening the signal current path and / or safety-related electrical equipment is out of service.
  • the actuating pin may be provided at the free front end with an opening which is formed for insertion of a spacer.
  • the opening may be formed as a plug-in opening or as a threaded bore, wherein the spacer is designed as a plug pin or as a set screw.
  • the invention can be used in various installation situations of the safety switch. Two major alternatives are that the switch module on the switch head (head attachment) or that the switch module on the housing wall opposite bottom plate (floor mounting) is attached.
  • the switch module is held by a mounting adapter, so that the switch module can be fixed to the fastening means.
  • the switch head is located at a distance from the switch module, which is the
  • Actuating stroke of the actuating means corresponds. In any case, at the
  • FIG. 1 a safety switch with switch head, switch module and signaling switch block
  • FIG. 2 pin holding plate with plug pin and spacer
  • Fig. 4 a first hood (housing cover) with pin retaining plate and screw ring and
  • Fig. 5 a second hood (housing cover) with integrated actuating pins.
  • Fig. 1 shows the safety switch 10, which includes a switch head 14 with actuating means. The figure represents the so-called head mounting alternative of a switch head.
  • the plunger actuating means 12
  • FIG. 4 From its underside.
  • the mounting adapter 36 is clipped on the plunger outlet side to the switch head.
  • the mounting adapter 36 is on the contact side of
  • Single switching blocks of the switch module directed and summarizes the individual switching blocks 22.1, 22.2, 22.3 together.
  • the individual switching blocks - including the signaling switching block - are inserted into the mounting adapter 36 and also clipped.
  • the switch module is set with Meldeschaltblock the switch head.
  • the switch head 14 is mounted from the inside of the housing wall 31 with a screw ring 34 in a round mounting opening 33.
  • the mounting can also take place in the upper side, for example, of a cover-shaped housing (30 ', 30 ").
  • a cover-shaped housing (30 ', 30 ").
  • FIGS. 4 and 5 two alternatives of a ceiling-shaped housing are shown.
  • the longitudinal axis of the safety switch is perpendicular to the plane of the housing wall 31, or perpendicular to the top of the housing.
  • the safety switch is set up and installed so that the plunger actuates the contact elements of the switch module 18 when it is actuated (from the rest position to the switching position).
  • Safety switch 10 is such that upon actuation (pushing in, pressing in) it influences the contact elements of the switch module 18 in such a way that an OFF switching function and / or warning function occurs. Most often, the safety switch is used for an emergency stop function, which is why the safety switch is also referred to as the emergency stop button. The operation of the safety switch can be connected in the switching position with a catch.
  • the present arrangement is equipped according to the invention with a monitoring function. This function takes effect when a disconnection of the switch module from the
  • Safety switch in particular a separation of the switch head takes place from the switch module.
  • the monitoring function should come into action if individual switching blocks of the switch module are disconnected or incompletely installed.
  • the separation can by destruction of the removal or by impermissible intervention (tampering) or by incorrect assembly done.
  • the switch module 18 comprises in Fig. 1, two individual switching blocks (22.1, 22.2).
  • the switch module 18 comprises in Fig. 1, two individual switching blocks (22.1, 22.2).
  • Input terminals 25 of the individual switching blocks are located at the front (visible) and the output terminals of the individual switching blocks are invisible on the rear.
  • the switch module 18 is supplemented with a signaling switching block 20 in such a way that the signaling switching block is arranged parallel to the individual switching blocks 22.1, 22.2 and in the same orientation as the individual switching blocks.
  • the signaling switching block 20 is laterally offset next to the individual switching blocks, so that the
  • Signaling contact 42 is assigned to the (rigidly arranged) actuating pin 46.
  • Actuating element of the signaling contact is outside the operating range 100 of the plunger.
  • the rigid actuating pin 46 is located on a pin retaining plate 44.
  • the pin retaining plate 44 is held and fixed together from the screw ring 34 with the switch head at the mounting hole from the inside.
  • the actuating pin 46 is perpendicular from the pin holding plate, which the housing wall 31 (cover 30 ') rests. Thus, the actuating pin 46 is parallel to the plunger axis.
  • the actuating pin 46 acts on the signaling contact of the signaling switching block 20, so that the signaling contact enters the closed position. Both at rest and in switching position of the
  • a preferred specific embodiment may consist in that the signaling switching block 20 is formed as a double switching block.
  • the double switch block has two spatially parallel contact elements on the back of the
  • Double switching blocks are bridged.
  • the two contact elements of the double switching block (20, 22.1) are connected in series.
  • the switching actuators of the signaling switching block 20 are located on top of the double switching block. The left in Fig. 1
  • Signaling block 20 is acted upon by the actuating pin 46.
  • the right in Fig. 1 individual switching blocks are actuated by the plunger 12 of the switch head in the switching position. In the rest position of the switch head and when properly assembled the signaling contact is closed.
  • the signaling contacts 42 of the signaling current path are schematically visible as an imprint on the signaling switching block 20.
  • Fig. 2 the pin retaining plate 44 is shown with actuating pin 46 as a single representation.
  • FIG. 4 Another alternative embodiment of forming at least one actuating pin 46 'is described in FIG. 4 below.
  • the actuating pin 46 is further shown with a spacer 48.
  • the length of the actuating pin 46 is selected so that in the assembled state of the signaling contact 42 is actuated.
  • the actuating pin may be provided at the free front end with an opening.
  • the opening 47 may be formed as a plug-in opening or as a threaded bore, wherein a spacer 48 is insertable.
  • the spacer can be configured either as a plug pin 48 or as a set screw. With the spacer 48 it comes to length adjustment of the actuating pin 46, so that depending on the assembly variants different distances to the switch module and the
  • Fig. 3 is a frontal view of the safety switch with switch head, switch module and signaling switch block is shown in exploded view. As in Fig. 1 are with the same
  • switch head 14 in head mounting alternative; Housing wall 31; Pin retaining plate 44 with actuating pin 46; Screw ring 34; Mounting adapter 36;
  • the plunger actuates only the contact elements of the switch module 18, or the contact elements of the individual switching blocks 22.1, 22.2 and 22.3.
  • the signaling switching block 20 (and its signaling contacts 42) are laterally outside the
  • Signaling block is introduced as a single switching block in a correspondingly enlarged mounting adapter 36.
  • Signaling current path is opened, so that a warning or message signal can be output.
  • the second switching actuator of the signaling switching block is operated together with the individual switching blocks.
  • the signaling current path which opens in this case can be 'ignored', since the safety function is already triggered when the safety switch is actuated.
  • FIG. 4 shows a first hood 30 '(housing cover), in which a switch head 14 is inserted into the mounting opening.
  • Fig. 4 shows the situation as an exploded view in connection with the pin retaining plate 44.
  • Fig. 5 shows a second hood 30 "(housing cover) for receiving the switch head 14.
  • This figure also shows the mounting hole 33 in the hood 30".
  • Two rigid actuating pins 46 ' are formed integrally with the hood on the inside of the hood 30 ", this being a variant with two actuating pins 46' .
  • the actuating pins are formed opposite each other at the mounting hole 33. It makes no difference which Position the hood 30 "in the assembly situation with respect to a switch module occupies.
  • actuating pins 46 'in the hood 30 "can also with openings (47) and with
  • Spacers (48) as shown in Fig. 2 may be formed.
  • a safety switch which comprises a switch head (comprising
  • Housing wall is mounted in a mounting hole with fasteners (screw ring).
  • the actuating means (plunger) is set up and installed so that it actuates contact elements of a switch module 18 when actuated in the switching position.
  • Assembled state of the safety switch of the signaling switching block is acted upon by a rigidly arranged actuating pin 46, so that when solving or changing the assembly state of the actuating pin disengaged from the signaling switching block 20 and the signaling current path opens.
  • the actuating element of the signaling contact and the signaling switching block are outside the operating range of the actuating means (plunger) of the safety switch.

Landscapes

  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)

Abstract

L'invention concerne un interrupteur de sécurité, qui présente une tête d'interrupteur (comprenant un moyen d'actionnement et une tête de touche), l'interrupteur de sécurité étant monté dans une paroi de boîtier (31), dans une ouverture de montage présentant un moyen de fixation (bague filetée 34). Le moyen d'actionnement (poussoir 12) est aménagé de façon que, par actionnement en la position de commutation, un élément de contact d'un module d'interrupteur (18) entre en action. Pour des interrupteurs de sécurité, il est bien connu qu'on se trouve en présence d'un problème, selon lequel un montage défectueux de la tête d'interrupteur et du module d'interrupteur, ou une séparation inacceptable de la tête d'interrupteur et du module d'interrupteur n'est pas décelable de l'extérieur, et l'arrêt de sécurité souhaitée ne fonctionne pas. Il est prévu, en conséquence, que le module d'interrupteur (18) soit agrandi d'un bloc de commutation de signalisation (20) renfermant un élément de contact situé dans un circuit de signalisation, de sorte qu'à l'état de montage de l'interrupteur de sécurité, le bloc de commutation de signalisation est sollicité par une tige d'actionnement (46), disposée rigide audit bloc. Lors d'une séparation ou d'une modification de l'état du montage, la tige d'actionnement est hors de prise avec le bloc de commutation de signalisation (20), et le circuit de signalisation (42) s'ouvre. La tige d'actionnement et le bloc de commutation de signalisation sont situés à l'extérieur de la zone d'actionnement (100) du moyen d'actionnement (poussoir 12) de l'interrupteur de sécurité.
EP14732155.8A 2013-06-20 2014-06-18 Boutton-poussoir de securite avec dispositif de detection l'assemblage correct Active EP3011576B8 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL14732155T PL3011576T3 (pl) 2013-06-20 2014-06-18 Wyłącznik bezpieczeństwa uruchamiany przez nacisk z funkcją monitorowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013106472 2013-06-20
PCT/EP2014/062805 WO2014202654A1 (fr) 2013-06-20 2014-06-18 Interrupteur de sécurité actionnable par pression, à fonction de contrôle

Publications (3)

Publication Number Publication Date
EP3011576A1 true EP3011576A1 (fr) 2016-04-27
EP3011576B1 EP3011576B1 (fr) 2018-02-21
EP3011576B8 EP3011576B8 (fr) 2018-04-11

Family

ID=50981509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14732155.8A Active EP3011576B8 (fr) 2013-06-20 2014-06-18 Boutton-poussoir de securite avec dispositif de detection l'assemblage correct

Country Status (6)

Country Link
US (1) US9589741B2 (fr)
EP (1) EP3011576B8 (fr)
CN (1) CN105340040B (fr)
CA (1) CA2916124C (fr)
PL (1) PL3011576T3 (fr)
WO (1) WO2014202654A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016116518A1 (de) * 2016-09-05 2018-03-08 Eaton Electrical Ip Gmbh & Co. Kg Halteadapter für die Fixierung von Befehls- und Meldegeräten sowie Anordnung
FR3066042A1 (fr) * 2017-05-02 2018-11-09 Schneider Electric Industries Sas Dispositif d'arret d'urgence
TWM565390U (zh) * 2017-12-15 2018-08-11 進聯工業股份有限公司 開關裝置改良結構
JP6859948B2 (ja) * 2017-12-28 2021-04-14 オムロン株式会社 押しボタンスイッチ
FR3077418B1 (fr) * 2018-01-26 2020-02-07 Apem Dispositif d'arret d'urgence
USD924822S1 (en) 2019-01-18 2021-07-13 Eaton Intelligent Power Limited Push button
DE102019101265A1 (de) * 2019-01-18 2020-07-23 Eaton Intelligent Power Limited Tastschalter-Anordnung mit Kennzeichnung eines Schaltzustandes
EP3828910A1 (fr) * 2019-11-26 2021-06-02 Schneider Electric Industries SAS Commande de composant et/ou de signalisation

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
FR2582360B1 (fr) * 1985-05-22 1989-05-12 Baco Sa Const Elect Anc Baumga Piece d'accouplement lateral
DE4101493C2 (de) 1991-01-19 2001-07-19 Schlegel Georg Gmbh & Co Elektrischer Schalter mit einer Kontaktvorrichtung und einem Stößel
DE19960695A1 (de) 1999-12-16 2001-06-21 Moeller Gmbh Drucktaste für Rast- und Tastfunktion
EP1801827B1 (fr) * 2005-12-20 2008-08-20 Siemens Aktiengesellschaft Dispositif avec un système de commande et un élément de commutation
ES2354826T3 (es) * 2006-09-28 2011-03-18 Siemens Aktiengesellschaft Aparato de mando con dispositivo de control.
US7790996B2 (en) * 2007-07-12 2010-09-07 General Electric Company Status indication for emergency stop push button
FR2950192B1 (fr) * 2009-09-16 2013-07-19 Schneider Electric Ind Sas Dispositif electrique de signalisation et/ou de commande pour bouton-poussoir
FR2959590B1 (fr) * 2010-04-29 2012-04-20 Schneider Electric Ind Sas Dispositif d'arret d'urgence
FR2964241B1 (fr) * 2010-08-25 2012-08-17 Schneider Electric Ind Sas Dispositif de detection et de signalement du changement d'etat d'un bouton-poussoir
ITVI20110126A1 (it) 2011-05-19 2012-11-20 Pizzato Elettrica Srl Involucro scatolare per pulsantiera di comando di un impianto elettrico
ITVI20110311A1 (it) * 2011-11-30 2013-05-31 Pizzato Elettrica Srl Unita' di comando a contatti doppi per impianti elettrici e dispositivo di comando elettrico comprendente tale unita'
CN202712012U (zh) * 2012-08-27 2013-01-30 宁波凯普电子有限公司 紧急按钮

Also Published As

Publication number Publication date
WO2014202654A1 (fr) 2014-12-24
US20160196933A1 (en) 2016-07-07
EP3011576B1 (fr) 2018-02-21
US9589741B2 (en) 2017-03-07
CA2916124A1 (fr) 2014-12-24
CN105340040B (zh) 2017-07-14
CA2916124C (fr) 2018-02-06
PL3011576T3 (pl) 2018-09-28
EP3011576B8 (fr) 2018-04-11
CN105340040A (zh) 2016-02-17

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