Sound insulation structure of the door it is exposed on interior side of the sound insulation component null

摘要

PROBLEM TO BE SOLVED: To provide a sound insulation structure of a door excellent in the sound insulation effect and a door sound insulating member capable of efficiently decreasing the leakage and propagation of noises produced by indoor work with the indoor remodeling work such as an apartment house or the like through the front door. SOLUTION: The sound insulation structure of the door providing a sound insulating member 21 having a shape adjusted to the door section 10 consisting of a sheet-like sound insulating material 11 so as to cover by separating an interval X=5 to 15 cm from the surface 1d on an indoor side of a door body 1 on the indoor side of the door body 1 and the door sound insulating member 20 placing a flap 22 by surrounding the whole circumference of the sound insulating member 21 having the shape adjusted to the door section consisting of the sheet-like sound insulating material 11 can solve such the problem that the leakage and propagation of the noises produced by the indoor work with the indoor remodeling work such as the apartment house or the like through the front door.