Elevator – industrial lift truck – or stationary lift for vehicle – Stationary lift for roadway vehicle or required component... – Having specific drive means for support
Patent
1980-01-31
1982-09-21
Truhe, J. V.
Elevator, industrial lift truck, or stationary lift for vehicle
Stationary lift for roadway vehicle or required component...
Having specific drive means for support
371 9, B66B 502
Patent
active
043502253
ABSTRACT:
A control logic for an elevator servicing a plurality of floors of a building comprises two microcomputers. The two microcomputers are provided with abnormal state detectors of their own. When the abnormal state detector of one microcomputer is actuated, the elevator is operated for recovery to the nearest floor by the other microcomputer on the condition that the abnormal state detector of the other microcomputer is not actuated, and thereafter retrial for the abnormal microcomputer is effected by an instruction from the other microcomputer. When the abnormal microcomputer recovers to normal state by the retrial, the elevator keeps operating, thereby preventing such a problem that the elevator cannot continue service by erroneous operation due to noise.
REFERENCES:
patent: 3786433 (1974-01-01), Notley et al.
patent: 4044337 (1977-08-01), Hicks et al.
patent: 4153198 (1979-05-01), Eki et al.
patent: 4210226 (1980-07-01), Ichioka
Katayama Yasunori
Kuzunuki Soshiro
Nakazato Masao
Sakata Kazuhiro
Yoneda Kenji
Duncanson Jr. W. E.
Hitachi , Ltd.
Truhe J. V.
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