| 摘要 |
PURPOSE: A door system is provided to prevent the inflow of noise and smoke to an indoor by preventing an interval between a door and a door frame when the door is close. CONSTITUTION: A door system comprises a door frame(100), a door(200), packing members(130,230), and protrusion(240,140). The door frame is installed on a gateway. The door is combined in the door frame to close the gateway. The packing member prevents an interval between the door and the door frame when the door is close. The protrusion is installed on either the door or the door frame in order to press the packing member. |
