IT1294007B1 - TIMED ELECTROMECHANICAL SAFETY SWITCH - Google Patents

TIMED ELECTROMECHANICAL SAFETY SWITCH

Info

Publication number
IT1294007B1
IT1294007B1 IT96VI000215A ITVI960215A IT1294007B1 IT 1294007 B1 IT1294007 B1 IT 1294007B1 IT 96VI000215 A IT96VI000215 A IT 96VI000215A IT VI960215 A ITVI960215 A IT VI960215A IT 1294007 B1 IT1294007 B1 IT 1294007B1
Authority
IT
Italy
Prior art keywords
devices
delay
door
switch
timed
Prior art date
Application number
IT96VI000215A
Other languages
Italian (it)
Inventor
Bernardo Pizzato
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
Priority to IT96VI000215A priority Critical patent/IT1294007B1/en
Publication of ITVI960215A1 publication Critical patent/ITVI960215A1/en
Priority to EP97119512A priority patent/EP0849750B1/en
Priority to AT97119512T priority patent/ATE214198T1/en
Priority to DE69710858T priority patent/DE69710858T2/en
Application granted granted Critical
Publication of IT1294007B1 publication Critical patent/IT1294007B1/en

Links

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

Abstract

A timed safety switch, particularly for accident-prevention doors of machines and apparatus, includes an enclosure (2) which can be anchored to the machine and internally accommodates a series of fixed electrical contacts (3) and of moving electrical contacts (3'), devices (4, 5) for locking the door which includes a safety key (4) which can be anchored to the door and can be inserted in a slot (7) of the enclosure (2), delay devices (11) which can move between an active position and an inactive position and are suitable to anticipate or delay the operation of the locking devices (4, 5) with respect to the actuation of the switch, clearance-providing devices (8) which can move to allow the insertion/extraction of the key (4) through the slot (7) only when the delay devices (11) are in their inactive position, so as to prevent accidental actuations of the switch when the door is open. The delay devices, the locking devices and the clearance-providing devices are of a mechanical type in order to ensure maximum reliability and safety. <IMAGE>
IT96VI000215A 1996-12-19 1996-12-19 TIMED ELECTROMECHANICAL SAFETY SWITCH IT1294007B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT96VI000215A IT1294007B1 (en) 1996-12-19 1996-12-19 TIMED ELECTROMECHANICAL SAFETY SWITCH
EP97119512A EP0849750B1 (en) 1996-12-19 1997-11-07 Timed electromechanical safety switch
AT97119512T ATE214198T1 (en) 1996-12-19 1997-11-07 TIMER-CONTROLLED ELECTROMECHANICAL SAFETY SWITCH
DE69710858T DE69710858T2 (en) 1996-12-19 1997-11-07 Time-controlled electromechanical safety switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96VI000215A IT1294007B1 (en) 1996-12-19 1996-12-19 TIMED ELECTROMECHANICAL SAFETY SWITCH

Publications (2)

Publication Number Publication Date
ITVI960215A1 ITVI960215A1 (en) 1997-03-19
IT1294007B1 true IT1294007B1 (en) 1999-03-15

Family

ID=11426214

Family Applications (1)

Application Number Title Priority Date Filing Date
IT96VI000215A IT1294007B1 (en) 1996-12-19 1996-12-19 TIMED ELECTROMECHANICAL SAFETY SWITCH

Country Status (4)

Country Link
EP (1) EP0849750B1 (en)
AT (1) ATE214198T1 (en)
DE (1) DE69710858T2 (en)
IT (1) IT1294007B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVI20130291A1 (en) * 2013-12-06 2015-06-07 Pizzato Elettrica Srl TIMED SAFETY SWITCH WITH MANUAL OPERATION
ITVI20130290A1 (en) * 2013-12-06 2015-06-07 Pizzato Elettrica Srl SECURITY SWITCH WITH ELECTRONIC DRIVE
DE102019201019A1 (en) * 2019-01-28 2020-07-30 Robert Bosch Gmbh Disconnector device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2613121B1 (en) * 1987-03-27 1993-12-10 Telemecanique Electrique KEY SWITCH LOCKABLE BY ACTUATOR
DE3923663A1 (en) * 1989-07-18 1991-01-24 Kronenberg Gmbh H & J Safety switch for machine - ahs timed interval before interlock is recessed to allow access
WO1994006141A1 (en) * 1992-08-31 1994-03-17 Idec Izumi Corporation Safety switch assembly
DE4328297C1 (en) * 1993-08-23 1995-02-23 Euchner & Co Safety switch

Also Published As

Publication number Publication date
ITVI960215A1 (en) 1997-03-19
EP0849750A2 (en) 1998-06-24
DE69710858D1 (en) 2002-04-11
EP0849750B1 (en) 2002-03-06
ATE214198T1 (en) 2002-03-15
EP0849750A3 (en) 1999-03-17
DE69710858T2 (en) 2002-11-14

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Legal Events

Date Code Title Description
0001 Granted