Digital entrance opening and closing device
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United States of America Patent
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Dec 27, 2016
Grant Date -
May 14, 2015
app pub date -
Sep 26, 2014
filing date -
Apr 17, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed herein is a digital opening and closing device for an entrance. The device includes: a housing which includes an outer casing and an inner casing with a door interposed between the inner and outer casings; a password input unit which is provided on the outer casing; a door opening and closing unit which is installed in the housing and conducts the operation of opening or closing the door; a control unit which compares a password input to the password input unit with a preset reference password and controls the door opening and closing unit; an opening button which is provided on the inner casing and is used in automatically opening the door; a manual opening button which prevents the door from being automatically locked when the door is closed; and a power supply supplying drive power to the elements.
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