Sound absorbing body
AssigneeBridgestone Tire Company Limited
InventorsMasayasu Matsumoto, Kazuyoshi Iida, Yoshikazu Kondo, Shosuke Suzuki
Life of this patent
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Abstract
A sound absorbing body which can effectively be utilized as an exterior sound absorbing wall or an interior wall of a house is disclosed. The sound absorbing body comprises a number of sound absorbing cavities inclined at an angle .alpha. which is smaller than 80.degree. with respect to a transverse horizontal sectional plane of the body, the sound absorbing cavities being opened at the sound incident surface.
Claims5
A sound absorbing body comprising, a plurality of sound absorbing bodies superimposed one upon the other and each provided with a number of sound absorbing cavities inclined at an angle which is less than 80.degree. with respect to a transverse horizontal sectional plane, the sound absorbing cavities of adjacent sound absorbing bodies being inclined at angles with respect to said transverse horizontal sectional plane which are different from each other, said sound absorbing cavities being opened at a sound incident surface and closed at base portions thereof.
Dependencies are inferred from the claim text.