Kobe Steel, Ltd.

Yoshikazu Mukai

Akio Sugimoto

Zenzo Yamaguchi

Ichiro Yamagiwa

Hideki Ishitobi

A porous sound absorbing structure according to the present invention includes an outer materialhaving a smooth curved shape, an inner materialhaving an uneven shape with a perimeter thereof combined with a perimeter of the outer materialto form a hollow portion S between the outer materialand the inner material, and a reinforcing plate materialhaving a large number of through holesthe reinforcing plate material being attached to a surface of the inner materialon 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

Porous sound absorbing structure

This sound insulating structure () is provided with: a panel (); a sound insulating material () laminated to the panel (); a reinforcing material () provided between the panel () and the sound insulating material () and bonded to the panel (); and an air layer (S) formed between the panel () and the reinforcing material (). The reinforcing material () has a plurality of through-holes (). As a result, it is possible to suppress an increase in overall weight and to secure sound shielding properties and sound insulating properties

Sound insulating structure

A porous sound absorbing structure according to the present invention includes an outer materialhaving a smooth curved shape, an inner materialhaving an uneven shape with a perimeter thereof combined with a perimeter of the outer materialto form a hollow portion S between the outer materialand the inner material, and a reinforcing plate materialhaving a large number of through holes, the reinforcing plate material being attached to a surface of the inner materialon 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

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Nagoya, Japan

Yoshikazu Mukai