Sound absorbing structure
AssigneesNichias Corporation, Alumu Corporation, Yotsumoto Acoustic Design Inc.
InventorsYoshiaki Yokoyama, Shinji Migita, Shinichi Okuzono, Kyoji Fujiwara, Takuya Fujimoto, Yukio Hattori
Life of this patent
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Abstract
A sound absorbing structure including a sound absorbing member, an air layer, and a resonant sound absorbing structure. The air layer is formed in the rear of the sound absorbing member. The resonant sound absorbing structure includes a slit and is formed in the rear of the sound absorbing member. The sound absorbing member is a surface plate covering the rear air layer and the resonant sound absorbing structure, and the sound absorbing member is shaped in one of a plate and plane.
Claims12
A sound absorbing structure comprising:
- a planar surface;
- a substantially planar sound absorbing member disposed spaced from said planar surface;
- a plurality of elongated members disposed adjacent said sound absorbing member, said elongated members defining an air layer adjacent said sound absorbing member and being made of a non-ventilation material, wherein continuous gaps between said elongated members define respective slits;
- and
- a resonant sound absorbing structure including said slits and continuous resonant spaces between said elongated members and said planar surface,
- wherein said sound absorbing member covers said air layer and said resonant sound absorbing structure.
Dependencies are inferred from the claim text.