EP1431228A3 - Safety device for working on top of an elevator car - Google Patents

Safety device for working on top of an elevator car Download PDF

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Publication number
EP1431228A3
EP1431228A3 EP04006916A EP04006916A EP1431228A3 EP 1431228 A3 EP1431228 A3 EP 1431228A3 EP 04006916 A EP04006916 A EP 04006916A EP 04006916 A EP04006916 A EP 04006916A EP 1431228 A3 EP1431228 A3 EP 1431228A3
Authority
EP
European Patent Office
Prior art keywords
car
working
light
safety device
hoistway
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
EP04006916A
Other languages
German (de)
French (fr)
Other versions
EP1431228B1 (en
EP1431228A2 (en
Inventor
Toshiaki Ishii
Kazumasa Ito
Makoto Tomidokoro
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to EP04006916.3A priority Critical patent/EP1431228B1/en
Priority claimed from EP00902881A external-priority patent/EP1167268B1/en
Publication of EP1431228A2 publication Critical patent/EP1431228A2/en
Publication of EP1431228A3 publication Critical patent/EP1431228A3/en
Application granted granted Critical
Publication of EP1431228B1 publication Critical patent/EP1431228B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel
    • B66B5/0081—Safety of maintenance personnel by preventing falling by means of safety fences or handrails, being operable or not, mounted on top of the elevator car
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0043—Devices enhancing safety during maintenance
    • B66B5/005—Safety of maintenance personnel

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)

Abstract

A safety device for working on top of an elevator car, employed in an elevator in which a driving machine (21) for raising and lowering a car (5) is disposed at an upper portion of a hoistway (1) and a portion of the driving machine (21) is disposed in an area where the car (5) is projected in its raising and lowering direction, comprises:
  • a light projecting device (51) provided on a side wall of the hoistway (1) for horizontally projecting a plurality of light beams (53) below the driving machine (21);
  • a light receiving device (52) provided on a side wall of the hoistway (1) opposite to said light projecting device (51) for receiving the light beams (53) projected from said light projecting device (51); and
  • a stop circuit (40) for stopping the raising of the car (5) when at least one of the light beams (53) is intercepted.
    • Figure 00000001
    EP04006916.3A 2000-02-09 2000-02-09 Safety device for working on top of an elevator car Expired - Lifetime EP1431228B1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    EP04006916.3A EP1431228B1 (en) 2000-02-09 2000-02-09 Safety device for working on top of an elevator car

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    EP04006916.3A EP1431228B1 (en) 2000-02-09 2000-02-09 Safety device for working on top of an elevator car
    EP00902881A EP1167268B1 (en) 2000-02-09 2000-02-09 Safety device for work on elevator cage

    Related Parent Applications (1)

    Application Number Title Priority Date Filing Date
    EP00902881A Division EP1167268B1 (en) 2000-02-09 2000-02-09 Safety device for work on elevator cage

    Publications (3)

    Publication Number Publication Date
    EP1431228A2 EP1431228A2 (en) 2004-06-23
    EP1431228A3 true EP1431228A3 (en) 2004-11-03
    EP1431228B1 EP1431228B1 (en) 2013-11-20

    Family

    ID=32337987

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP04006916.3A Expired - Lifetime EP1431228B1 (en) 2000-02-09 2000-02-09 Safety device for working on top of an elevator car

    Country Status (1)

    Country Link
    EP (1) EP1431228B1 (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN109552957B (en) * 2017-09-25 2021-12-31 奥的斯电梯公司 Elevator sensor array system

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    WO2008056398A1 (en) * 2006-11-06 2008-05-15 Mitsubishi Electric Corporation Elevator system
    EP3424858B1 (en) 2017-07-03 2020-04-01 Otis Elevator Company Elevator maintenance space projection systems
    WO2021234119A1 (en) * 2020-05-20 2021-11-25 Tk Elevator Innovation And Operations Gmbh Elevator system

    Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPH0246788U (en) * 1988-09-27 1990-03-30
    US5025895A (en) * 1990-01-09 1991-06-25 G.E.C. Holding Corp. Elevator car top intrusion device
    EP0905081A2 (en) * 1997-09-26 1999-03-31 Kabushiki Kaisha Toshiba Positioning of drive unit in an elevator shaft
    EP0926093A1 (en) * 1997-11-28 1999-06-30 Thyssen Aufzüge Gmbh Elevator, in particular traction sheave elevator

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JPH0246788U (en) * 1988-09-27 1990-03-30
    US5025895A (en) * 1990-01-09 1991-06-25 G.E.C. Holding Corp. Elevator car top intrusion device
    EP0905081A2 (en) * 1997-09-26 1999-03-31 Kabushiki Kaisha Toshiba Positioning of drive unit in an elevator shaft
    EP0926093A1 (en) * 1997-11-28 1999-06-30 Thyssen Aufzüge Gmbh Elevator, in particular traction sheave elevator

    Non-Patent Citations (1)

    * Cited by examiner, † Cited by third party
    Title
    PATENT ABSTRACTS OF JAPAN vol. 1996, no. 09 30 September 1996 (1996-09-30) *

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN109552957B (en) * 2017-09-25 2021-12-31 奥的斯电梯公司 Elevator sensor array system

    Also Published As

    Publication number Publication date
    EP1431228B1 (en) 2013-11-20
    EP1431228A2 (en) 2004-06-23

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