EP1876616A3 - Reset device for limit switch and limit switch incorporating such device - Google Patents

Reset device for limit switch and limit switch incorporating such device Download PDF

Info

Publication number
EP1876616A3
EP1876616A3 EP07012965A EP07012965A EP1876616A3 EP 1876616 A3 EP1876616 A3 EP 1876616A3 EP 07012965 A EP07012965 A EP 07012965A EP 07012965 A EP07012965 A EP 07012965A EP 1876616 A3 EP1876616 A3 EP 1876616A3
Authority
EP
European Patent Office
Prior art keywords
limit switch
reset
switch
housing
incorporating
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
EP07012965A
Other languages
German (de)
French (fr)
Other versions
EP1876616B1 (en
EP1876616A2 (en
Inventor
Marco Pizzato
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.)
Pizzato Elettrica SRL
Original Assignee
Pizzato Elettrica SRL
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 Pizzato Elettrica SRL filed Critical Pizzato Elettrica SRL
Publication of EP1876616A2 publication Critical patent/EP1876616A2/en
Publication of EP1876616A3 publication Critical patent/EP1876616A3/en
Application granted granted Critical
Publication of EP1876616B1 publication Critical patent/EP1876616B1/en
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
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0018—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for allowing different operating parts
    • 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
    • H01H13/68—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having two operating members, one for opening and one for closing the same set of contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • 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
    • H01H2003/024—Resetting of bistable emergency operating part by pulling it
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • H01H2021/287—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift with adjustable head, e.g. the actuator head can have different positions in relation to the limit switch itself
    • 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
    • H01H3/20—Operating parts, i.e. for operating driving mechanism by a mechanical force external to the switch wherein an auxiliary movement thereof, or of an attachment thereto, is necessary before the main movement is possible or effective, e.g. for unlatching, for coupling

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Keying Circuit Devices (AREA)

Abstract

The present invention generally finds application in the field of safety electric devices and relates to a reset device to be coupled to a limit switch (2), which comprises a modular housing (14), interface means (18) associated to said housing for removable coupling both to the head (4) and to the case (3) of the limit switch (2), reset means (13) at least partly accommodated in said housing (14) for controlled turning on and off of the limit switch (2). The reset means have such a shape as to interact with the actuator means of the switch to promote positive opening of the electric contacts substantially at the same time as the switch with which the device is associated is turned on/off.
EP20070012965 2006-07-07 2007-07-03 Reset device for limit switch and limit switch incorporating such device Active EP1876616B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITVI20060211 ITVI20060211A1 (en) 2006-07-07 2006-07-07 RESET DEVICE FOR LIMIT SWITCH AND LIMIT SWITCH INCLUDING THIS DEVICE

Publications (3)

Publication Number Publication Date
EP1876616A2 EP1876616A2 (en) 2008-01-09
EP1876616A3 true EP1876616A3 (en) 2009-02-25
EP1876616B1 EP1876616B1 (en) 2011-09-14

Family

ID=38521207

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070012965 Active EP1876616B1 (en) 2006-07-07 2007-07-03 Reset device for limit switch and limit switch incorporating such device

Country Status (2)

Country Link
EP (1) EP1876616B1 (en)
IT (1) ITVI20060211A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8902084B2 (en) * 2013-01-31 2014-12-02 Messier-Dowty Inc. Switch assembly and over-steer detection system
FR3010826B1 (en) * 2013-09-19 2017-04-21 Schneider Electric Ind Sas POSITION SWITCH
ITVI20130291A1 (en) * 2013-12-06 2015-06-07 Pizzato Elettrica Srl TIMED SAFETY SWITCH WITH MANUAL OPERATION
US10303247B2 (en) 2015-01-16 2019-05-28 Hewlett-Packard Development Company, L.P. User gaze detection
DE202015100855U1 (en) * 2015-02-23 2015-03-26 steute Schaltgeräte GmbH & Co. KG actuator
CN108292569B (en) * 2015-08-12 2020-04-10 霍尼韦尔国际公司 Limit switch with integrated reset key
US9928972B1 (en) 2016-11-09 2018-03-27 Honeywell International Inc. Limit switch housing with reset function

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3043240A1 (en) * 1980-11-15 1982-09-30 Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn LV push-pull switch for hand or foot usage - has spring assisted operation and magnet or catch release for pull and hold position
DE19503156A1 (en) * 1994-04-12 1995-10-19 Reiter Srl Multipurpose limit switch device
JPH08111141A (en) * 1994-10-13 1996-04-30 Omron Corp Switch
US6627827B2 (en) * 2001-10-15 2003-09-30 Schneider Electric Industries Sas Switch, particularly position switch, with a multi-directional head

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3043240A1 (en) * 1980-11-15 1982-09-30 Klöckner-Moeller Elektrizitäts GmbH, 5300 Bonn LV push-pull switch for hand or foot usage - has spring assisted operation and magnet or catch release for pull and hold position
DE19503156A1 (en) * 1994-04-12 1995-10-19 Reiter Srl Multipurpose limit switch device
JPH08111141A (en) * 1994-10-13 1996-04-30 Omron Corp Switch
US6627827B2 (en) * 2001-10-15 2003-09-30 Schneider Electric Industries Sas Switch, particularly position switch, with a multi-directional head

Also Published As

Publication number Publication date
ITVI20060211A1 (en) 2008-01-08
EP1876616B1 (en) 2011-09-14
EP1876616A2 (en) 2008-01-09

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