Title:
ACOUSTIC OBSTRUCTION PREVENTION EQUIPMENT AND DESIGN METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2020/194840
Kind Code:
A1
Abstract:
Provided are: acoustic obstruction prevention equipment that prevents acoustic obstruction by appropriately designing a surface structure of an element surface surrounding a space and a surface structure of an acoustic diffusion body; and a design method thereof. The present invention has a plurality of element surfaces that constitute a wall surface, a ceiling surface, or a floor surface surrounding a space. The element surfaces have angles of nα (n is a natural number) therebetween and prevent acoustic obstruction by means of reflection between these element surfaces. φ=(1+sqrt(5))/2, α=360°*1/(1+φ). The same method may be used for a plurality of other element surfaces constituting the acoustic diffusion body installed in the space. In addition, it is also possible to constitute the acoustic diffusion body by rotating and disposing a plurality of units at the same angle.
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Inventors:
YATSUNAMI SHIMPEI (JP)
Application Number:
PCT/JP2019/043852
Publication Date:
October 01, 2020
Filing Date:
November 08, 2019
Export Citation:
Assignee:
NIPPON ENV AMENITY CO LTD (JP)
International Classes:
E04B1/99; G10K15/00
Foreign References:
| JPH04309999A | 1992-11-02 | |||
| JP2003302095A | 2003-10-24 | |||
| JP2000110278A | 2000-04-18 | |||
| JP2006300995A | 2006-11-02 |
Other References:
See also references of EP 3951112A4
Attorney, Agent or Firm:
KITAMURA, Koji et al. (JP)
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