NON-POWERED AUTOMATIC DOOR

摘要

PURPOSE: A non-powered automatic door is provided to decrease waste of power and manufacturing costs and to operate regardless of a power failure. CONSTITUTION: The non-powered automatic door comprises: a lever rail(10) coupled to a primary shaft(11); a door(20) installed to be slid on the lever rail(10); a push plate(30) installed on the front of the door(20) and pressed by the weight of pedestrian; an incliner(40) installed between the lever rail(10) and the push plate(30) to tilt the lever rail(10) toward the center of the primary shaft(11); and a primary spring(50) adding elastic bias not to make the lever rail(10) inclined.