OPENING/CLOSING STRUCTURE FOR DOOR

摘要

PROBLEM TO BE SOLVED: To increase an opening/closing angle of a door, prevent easy opening of the door by outsiders, minimize a gap between the opening edge of a framework and the door and maintain the security of the framework. SOLUTION: A first supporting shaft 11 is arranged inside a casing 1 at one side portion of an opening 2 thereof to pivotally support a bracket 10 in a rotationally movable manner. A second supporting shaft 12 is arranged on the bracket 10 to pivotally support a door 3 at its base end in a rotationally movable manner. A door locking portion 5 with a locking groove 6 is provided inside the casing 1 at the other side portion of the opening 2 thereof. A pin 25 is provided on the back of the door 3 on its rotationally movable end 3b to engage the locking groove 6. A lock receiver 17 of the bracket 10 is locked by a locking device 30.