Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Patent
1981-07-08
1983-08-30
Dobeck, B.
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
318266, H02P 300
Patent
active
044019297
ABSTRACT:
A control apparatus of an automatic door is adapted such that a time period required for opening a door to a full-opened state is stored and a target time period required for opening the door to a half-opened state or to a 3/4-opened state is determined by evaluating the stored time period for opening the door to a full-opened state. In an operation mode for opening the door to a half-opened state or a 3/4-opened state, comparison is made of a lapse time period of the current operation for opening the door and the target time period is calculated, in advance whereupon a motor is brought to a stop upon coincidence thereof.
REFERENCES:
patent: 4006392 (1977-02-01), Catlett
Ishino Koichi
Nakamura Masayuki
Odaka Kuniyuki
Yamamura Yukio
Dobeck B.
Evans A.
Matsushita Electric & Works Ltd.
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