GB1102858A - Safety device for elevator - Google Patents

Safety device for elevator

Info

Publication number
GB1102858A
GB1102858A GB37579/66A GB3757966A GB1102858A GB 1102858 A GB1102858 A GB 1102858A GB 37579/66 A GB37579/66 A GB 37579/66A GB 3757966 A GB3757966 A GB 3757966A GB 1102858 A GB1102858 A GB 1102858A
Authority
GB
United Kingdom
Prior art keywords
motor
field
control
aug
generator
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.)
Expired
Application number
GB37579/66A
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1102858A publication Critical patent/GB1102858A/en
Expired 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
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/08—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding
    • B66B5/10—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding electrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/24—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration
    • B66B1/28—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical
    • B66B1/30—Control systems with regulation, i.e. with retroactive action, for influencing travelling speed, acceleration, or deceleration electrical effective on driving gear, e.g. acting on power electronics, on inverter or rectifier controlled motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)
  • Elevator Control (AREA)

Abstract

1,102,858. Control of D.C. motors. HITACHI Ltd. 22 Aug., 1966 [30 Aug., 1965], No. 37579/66. Heading H2J. In a lift system having a motor with Ward- Leonard control, with separate rheostatic control of the generator shunt field GSF and the motor shunt field MSF, emergency deceleration is effected in response to the operation of upper or lower limit detectors UL, DL or overspeed switch GRS by a relay 3M which either weakens the generator field by the opening of contacts 3Mb or, in an alternative arrangement (Fig. 2, not shown) strengthens the motor field by shortcircuiting its rheostat.
GB37579/66A 1965-08-30 1966-08-22 Safety device for elevator Expired GB1102858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7070065 1965-08-30

Publications (1)

Publication Number Publication Date
GB1102858A true GB1102858A (en) 1968-02-14

Family

ID=13439136

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37579/66A Expired GB1102858A (en) 1965-08-30 1966-08-22 Safety device for elevator

Country Status (3)

Country Link
US (1) US3333657A (en)
DE (1) DE1456360A1 (en)
GB (1) GB1102858A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189410A1 (en) * 2004-06-02 2010-05-26 Inventio Ag Elevator supervision

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3599754A (en) * 1969-06-30 1971-08-17 Westinghouse Electric Corp Motor control system
JPS5813469B2 (en) * 1976-03-12 1983-03-14 三菱電機株式会社 Position detection device for elevators
JPH07157219A (en) * 1993-12-01 1995-06-20 Mitsubishi Electric Corp Safety device for elevator
CN105026297B (en) * 2013-02-22 2018-01-19 通力股份公司 For the method and apparatus for the security for monitoring counter weight type elevator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1654650A (en) * 1926-04-15 1928-01-03 Otis Elevator Co Safety appliance
US2978070A (en) * 1959-02-02 1961-04-04 Dover Corp Control system for elevator motors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2189410A1 (en) * 2004-06-02 2010-05-26 Inventio Ag Elevator supervision

Also Published As

Publication number Publication date
DE1456360A1 (en) 1968-12-05
US3333657A (en) 1967-08-01

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