SE9401404D0 - Safety device for elevator doors - Google Patents

Safety device for elevator doors

Info

Publication number
SE9401404D0
SE9401404D0 SE9401404A SE9401404A SE9401404D0 SE 9401404 D0 SE9401404 D0 SE 9401404D0 SE 9401404 A SE9401404 A SE 9401404A SE 9401404 A SE9401404 A SE 9401404A SE 9401404 D0 SE9401404 D0 SE 9401404D0
Authority
SE
Sweden
Prior art keywords
relay
safety device
elevator doors
energized
event
Prior art date
Application number
SE9401404A
Other languages
Swedish (sv)
Other versions
SE9401404L (en
SE514271C2 (en
Inventor
Arvid Eriksson
Original Assignee
Kone Oy
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 Kone Oy filed Critical Kone Oy
Publication of SE9401404D0 publication Critical patent/SE9401404D0/en
Publication of SE9401404L publication Critical patent/SE9401404L/en
Publication of SE514271C2 publication Critical patent/SE514271C2/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/14—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to occurrence of voltage on parts normally at earth potential

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Door Apparatuses (AREA)

Abstract

Safety device for lift doors or the like, which lift doors or the like are controlled by a control circuit comprising one or more contacts KD which are connected to a mains voltage V1. To disconnect dangerous voltages in the event of an open lift door, the device comprises a first relay K1, a second relay K2 and a protective transformer T which are connected in such a way that when the contacts KD are closed, the first relay K1 operates in such a way that the second relay K2 pulls in, that the second relay K2 has a holding circuit, and that the first relay K1 is de-energized, and that in the event of an open circuit both relays K1, K2 are de-energized whereby the phase voltage V1 is disconnected from the control circuit. <IMAGE>
SE9401404A 1993-04-27 1994-04-25 Safety device for elevator doors SE514271C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI931899A FI93283C (en) 1993-04-27 1993-04-27 Safety device for elevator doors

Publications (3)

Publication Number Publication Date
SE9401404D0 true SE9401404D0 (en) 1994-04-25
SE9401404L SE9401404L (en) 1994-10-28
SE514271C2 SE514271C2 (en) 2001-01-29

Family

ID=8537814

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9401404A SE514271C2 (en) 1993-04-27 1994-04-25 Safety device for elevator doors

Country Status (3)

Country Link
FI (1) FI93283C (en)
NO (1) NO308406B1 (en)
SE (1) SE514271C2 (en)

Also Published As

Publication number Publication date
NO941530L (en) 1994-10-28
NO308406B1 (en) 2000-09-11
NO941530D0 (en) 1994-04-26
SE9401404L (en) 1994-10-28
FI93283B (en) 1994-11-30
FI931899A0 (en) 1993-04-27
FI93283C (en) 1995-03-10
SE514271C2 (en) 2001-01-29

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Legal Events

Date Code Title Description
NUG Patent has lapsed