| 摘要 |
The present invention a sound-absorbing soundproof unit (20) where a soundproof rubber plate (21) and a porous egg-crate plate (22) are installed on the front surface of a wall (1) in order; first sound-absorbing units (30) installed on the upper and lower parts of the egg-crate plate (22) of the sound-absorbing soundproof unit (20) except for the center of the egg-crate plate (22) and having holes (33) having a sound-absorbing function; and a second sound-absorbing unit (50) installed separately while interposing a space unit (40) with the center of the front surface of the egg-crate plate (22) of the sound-absorbing soundproof unit (20) to be parallel and including multiple holes (52). The space unit (40) additionally absorbs sounds between the egg-crate plat (22), which is formed between the first sound-absorbing units (30) on the upper and lower parts of the egg-crate plate (22), and the rear surface of the second sound-absorbing unit (50). A reflective molding (60) having an inclined surface (60) inducing indoor sounds to the space unit (40) on the rear surface of the second sound-absorbing unit (50) is installed each on the ceiling, the floor, and the upper and lower parts of the first sound-absorbing unit (30). |
