DOOR GUARD AND DOOR DEVICE USING IT

摘要

PROBLEM TO BE SOLVED: To make a door guard suitable for attaining the problem avoidance of automatic door opening by a motor-operated mechanism in the promotion of the use of the door guard and the working conditions of the door guard, a security function for an entrance or the like. SOLUTION: The problem avoidance of automatic door opening, the security function for the entrance or the like are attained by combining and mounting a position sensing means E sensing the place of the guard engaging a guard arm 4 with an engaging projection 3 and a play place where the engagement is not conducted in addition to the engaging projection 3 and the guard arm 4 distributed and installed on a door surface 1a and a fixed surface 2a on the building side erected from the vicinity of the door surface 1a.