SAFETY DEVICE AND SAFETY/STARTING DEVICE FOR MOVING DOOR

PROBLEM TO BE SOLVED: To stably detect a person who goes in or out or stands stationarily by separately arranging signal reception sections and signal transmission sections on moving doors and fixed sections such as the fitting frames of a building respectively. SOLUTION: When a person enters safety...

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Bibliographic Details
Main Author HAYASHIDA KENICHI
Format Patent
LanguageEnglish
Published 09.11.1999
Edition6
Subjects
CHECKS FOR WINGS
DETECTING MASSES OR OBJECTS
DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION
FIXED CONSTRUCTIONS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
KEYS
LOCKS
MEASURING
PHYSICS
SAFES
TESTING
WINDOW OR DOOR FITTINGS
WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THEFUNCTIONING OF THE WING
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Summary:PROBLEM TO BE SOLVED: To stably detect a person who goes in or out or stands stationarily by separately arranging signal reception sections and signal transmission sections on moving doors and fixed sections such as the fitting frames of a building respectively. SOLUTION: When a person enters safety detection areas 130a-130 n during the closing actions of doors 4, 5, reflection signals are detected by signal reception sections 32a-32n, and door open signals are outputted to a monitor unit by a control means 20. Even when the person stands stationarily in the safety detection areas 130a-130n, the signal reception sections 32 a, 32b installed on the doors 4, 5 are again moved to detect the stationary person. The signal reception sections 32a, 32b are merely required to implement moving body detecting switch actions and not required to implement stationary body detecting switch actions, and the circuit structures of the signal reception sections 32a, 32b can be simplified, thereby the cost of this device can be reduced while its reliability is increased.
Bibliography:Application Number: JP19990086437