| 摘要 |
PURPOSE: A soundproof device for a building door is provided to prevent noise from becoming transferred to the inside and outside of a building since a rotating sealing unit for blocking or absorbing noise is fixed to a door. CONSTITUTION: A soundproof device for a building door comprise a sealing unit(100). The sealing unit comprises a main strip(110) and a rotating strip(120). The sliding door of a building is opened/closed being slid to the left and right. The sealing unit seals the gap between a door and a door frame(20). The main strip is surface-bonded to one surface of the door frame. The rotating strip is rotatably supported on the rear of the main strip by a bonding band(130). |
