SELECTIVE AUTOMATIC DOOR OPENING AND SHUTTING DEVICE CAPABLE OF OPENING AND SHUTTING A DOOR AUTOMATICALLY, AND OPENING AND SHUTTING A DOOR MANUALLY WITH SIMPLE MANIPULATION

摘要

PURPOSE: A selective automatic door opening and shutting device is provided to open and shut a door manually or automatically at need by installing simply to the existing sliding door.;CONSTITUTION: A selective automatic door opening and shutting device comprises a door frame(1), a door(3), a driving unit(10) coupled to a bracket to be movable between the first position and the second position by a user's choice and generating driving force required for opening and shutting the door, a bracket(20) installed to the door frame correspondingly to the position of a driven unit, a driven unit(30) installed to the door and receiving the driving force from the driving unit to open and shut the door, and a stopper(40) installed to two ends of the driven unit to control the maximum opening and shutting degree of the door.;COPYRIGHT KIPO 2010