ES406301A1 - Elevator floor leveling system - Google Patents

Elevator floor leveling system

Info

Publication number
ES406301A1
ES406301A1 ES406301A ES406301A ES406301A1 ES 406301 A1 ES406301 A1 ES 406301A1 ES 406301 A ES406301 A ES 406301A ES 406301 A ES406301 A ES 406301A ES 406301 A1 ES406301 A1 ES 406301A1
Authority
ES
Spain
Prior art keywords
source means
leveling system
source
respect
elevator floor
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
ES406301A
Other languages
Spanish (es)
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.)
United States Elevator Corp
US ELEVATOR CORP
Original Assignee
United States Elevator Corp
US ELEVATOR 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 United States Elevator Corp, US ELEVATOR CORP filed Critical United States Elevator Corp
Publication of ES406301A1 publication Critical patent/ES406301A1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B1/00—Control systems of elevators in general
    • B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
    • B66B1/36—Means for stopping the cars, cages, or skips at predetermined levels
    • B66B1/40—Means for stopping the cars, cages, or skips at predetermined levels and for correct levelling at landings

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Elevator Control (AREA)

Abstract

System for automatically stopping or leveling lifts and the like and, more particularly, the floor of an elevator car with respect to a predetermined point of the elevator car, characterized in that it comprises: Displacement signal means for varying the amount of radiation reaching a receiving means from a source means when said sensor is displaced with respect to said source means; Receiving means for determining the direction in which said source means travels from said displacement signal means; y Drive control means for controlling the speed of said cab in response to the output of said source means. (Machine-translation by Google Translate, not legally binding)
ES406301A 1971-08-11 1972-08-07 Elevator floor leveling system Expired ES406301A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17084171A 1971-08-11 1971-08-11

Publications (1)

Publication Number Publication Date
ES406301A1 true ES406301A1 (en) 1975-09-16

Family

ID=22621481

Family Applications (1)

Application Number Title Priority Date Filing Date
ES406301A Expired ES406301A1 (en) 1971-08-11 1972-08-07 Elevator floor leveling system

Country Status (6)

Country Link
US (1) US3749203A (en)
CH (1) CH554804A (en)
DE (1) DE2234312A1 (en)
ES (1) ES406301A1 (en)
FR (1) FR2148598A1 (en)
IT (1) IT963527B (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU470136B2 (en) * 1973-02-21 1976-03-04 Elevators Pty. Limited Improved transducer for servomechanisms
JPS5321653B2 (en) * 1973-08-27 1978-07-04
JPS5813467B2 (en) * 1975-04-21 1983-03-14 株式会社日立製作所 AC elevator level adjustment device
US4021711A (en) * 1975-06-27 1977-05-03 International Business Machines Corporation Article positioner with zero position sensing means
DE2839160C2 (en) * 1978-09-08 1983-03-31 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Method and device for operating a mining shaft conveyor
US4312619A (en) * 1979-07-19 1982-01-26 Fmc Corporation Aircraft cargo loading method and apparatus
US4346788A (en) * 1979-11-13 1982-08-31 Otis Elevator Company Tailorable discrete optical sensor
US4570755A (en) * 1983-06-27 1986-02-18 Armor Electric Company, Inc. Digital landing computer for elevator
US4520904A (en) * 1983-11-09 1985-06-04 Otis Elevator Company Elevator leveling signal error and correction
US4896747A (en) * 1988-07-28 1990-01-30 Otis Elevator Company Modular elevator system
US4976338A (en) * 1989-04-27 1990-12-11 Delaware Capital Formation, Inc. Leveling control system for hydraulic elevator
US5783784A (en) * 1996-11-19 1998-07-21 Otis Elevator Company Differential reflectometery for position reference in an elevator system
US6351994B1 (en) * 2000-06-09 2002-03-05 Trilogy Technologies, Inc. Sensor system for determining relative displacement of an object using an activation member
US6401351B1 (en) 2000-06-09 2002-06-11 Trilogy Technologies, Inc. Sensor system for determining relative displacement of an object using a flexible retractable activation member
US7360630B2 (en) * 2004-04-16 2008-04-22 Thyssenkrupp Elevator Capital Corporation Elevator positioning system
US20170057782A1 (en) * 2014-02-19 2017-03-02 Otis Elevator Company Improved elevator releveling control
WO2015159392A1 (en) * 2014-04-16 2015-10-22 三菱電機株式会社 Elevator position detection device
US9837860B2 (en) * 2014-05-05 2017-12-05 Witricity Corporation Wireless power transmission systems for elevators

Also Published As

Publication number Publication date
US3749203A (en) 1973-07-31
FR2148598A1 (en) 1973-03-23
DE2234312A1 (en) 1973-02-22
IT963527B (en) 1974-01-21
CH554804A (en) 1974-10-15

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