POROUS SOUND ABSORBING STRUCTURE

摘要

A porous sound absorbing structure according to the present invention includes an outer material 2 having a smooth curved shape, an inner material 3 having an uneven shape with a perimeter thereof combined with a perimeter of the outer material 2 to form a hollow portion S between the outer material 2 and the inner material, and a reinforcing plate material 4 having a large number of through holes 5, the reinforcing plate material being attached to a surface of the inner material 3 on the side of the hollow portion S in such a manner that an air layer is formed between the reinforcing plate material and the surface. A sound absorbing property is given to an interior of the hollow portion S by the reinforcing plate material 4.

主权项

1. A porous sound absorbing structure, comprising:
an outside material having a smooth curved shape; an inside material having an uneven shape with a perimeter thereof combined with a perimeter of the outside material to form a hollow portion between the outside material and the inside material; and a reinforcing plate material having a plurality of through holes, the reinforcing plate material being attached to an inner surface of at least any of the outside material and the inside material on the side of the hollow portion in such a manner that an air layer is formed between the reinforcing plate material and the inner surface, wherein a sound absorbing property is given to an interior of the hollow portion by the reinforcing plate material, and the reinforcing plate material being attached to and entirely positioned on an area of the at least any of the outside material and the inside material, and the reinforcing plate material being positioned closer to a first end of the hollow portion than to a second, opposite end of the hollow portion.