ES406301A1 - Elevator floor leveling system - Google Patents
Elevator floor leveling systemInfo
- 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
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)
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)
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 |
-
1971
- 1971-08-11 US US00170841A patent/US3749203A/en not_active Expired - Lifetime
-
1972
- 1972-07-12 DE DE2234312A patent/DE2234312A1/en active Pending
- 1972-07-28 IT IT27625/72A patent/IT963527B/en active
- 1972-08-07 ES ES406301A patent/ES406301A1/en not_active Expired
- 1972-08-10 CH CH1185972A patent/CH554804A/en not_active IP Right Cessation
- 1972-08-10 FR FR7228920A patent/FR2148598A1/fr not_active Withdrawn
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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