| 摘要 |
<p>Provided is a door having an excellent ventilation function and an excellent sound isolation function. A door (1) has a hollow structure formed by mounting a front face material (2) to one side of a door frame (10) and mounting a back face material (3) to the other side. Air passage openings (50-57) provided in the face material (2) are located between auxiliary bars (31-39), and air passage openings (58, 59) provided in the face material (3) are located between auxiliary bars (41-43). The gaps between the auxiliary bars (31-39) and the gaps between the auxiliary bars (41-43) are small-width sections having a small vertical width. Hollow sections (4, 5) other than the small width sections are large-width sections having a large vertical width. Baffles (61-63) may be provided in the hollow sections (4, 5).</p> |
