Method of and apparatus for controlled operation of an elevator

Details Method of and apparatus for controlled operation of an elevator Method of and apparatus for controlled operation of an elevator

1989-06-13

1991-03-12

Pellinen, A. D.

Elevator, industrial lift truck, or stationary lift for vehicle

Stationary lift for roadway vehicle or required component...

Having specific drive means for support

B66B 1324

Patent

active

049986015

ABSTRACT:
A method of and apparatus for controlling operation of an elevator at the occurrence of an earthquake. Estimated seismic intensity data is collected from a plurality of sources at different locations within a geographic region and transferred to an administration section; the geographic region is divided into zones of different seismic intensity based upon the transferred data; seismic intensity at the location of the elevator is assumed upon the occurrence of an earthquake on the basis of location of the elevator in the zones; whether the operation of the elevator is to be permitted is judged according to the assumed seismic intensity; and a trial run is commanded upon a judgement that operation is permitted, whereupon normal elevator operation is restored when the absence of any abnormality has been acknowledged upon travel during the trial run.

REFERENCES:
patent: 3792759 (1974-02-01), Kirsch
patent: 4056169 (1977-11-01), Showalter
patent: 4069898 (1978-01-01), Tosato et al
patent: 4653611 (1987-03-01), Ohta et al.
patent: 4690251 (1987-09-01), Onoda et al.
patent: 4809817 (1989-03-01), Kawai

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