| 摘要 |
PURPOSE: A school entrance door capable of replacing a worn part and preventing noise is provided to prevent noise and facilitate the opening and closing of a door, since the position of a roller is accurately fixed without error. CONSTITUTION: A school entrance door(1) capable of replacing a worn part and preventing noise comprises a door(10) and a door frame(20). The door comprises a door body(11), a guide member(12), a roller, a first replacement member(14), and a first anti-floating member(15). The roller is bolt-coupled with a guide projection of a guide member. The first replacement member is coupled with a first coupling groove of the door body. The first anti-floating member is fixed to a second coupling groove of the door body. The door frame comprises a doorframe body(21), a second replacement member(22), and a second anti-floating member(23). |
