AUTOMATIC DOOR

PURPOSE:To provide a device which allows the door to be released from the connection with a converting device when the power failure occurrs or the power source is shut off, thereby making the mannual opening and closing operation thereof easy to prevent disasters including fire at an emergency.

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Bibliographic Details
Main Author IMURA MASARU
Format Patent
LanguageEnglish
Published 22.03.1977
Subjects
CHECKS FOR WINGS
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
FIXED CONSTRUCTIONS
KEYS
LOCKS
SAFES
WINDOW OR DOOR FITTINGS
WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Summary:PURPOSE:To provide a device which allows the door to be released from the connection with a converting device when the power failure occurrs or the power source is shut off, thereby making the mannual opening and closing operation thereof easy to prevent disasters including fire at an emergency.
Bibliography:Application Number: JP19750112059