Title:
ACOUSTIC PANEL AND SOUNDPROOF WALL EQUIPMENT
Document Type and Number:
WIPO Patent Application WO/2015/114929
Kind Code:
A1
Abstract:
The purpose of the invention is to reduce high frequency sounds as well as low frequency sounds from sound waves diffracting from near the top edge of the top-most layer of an acoustic panel. The present invention is an acoustic panel (1B) that is disposed further above the top-most of a plurality of vertically arranged layers of a soundproof panel (1A) in which the back face opposite of a sound source is formed to be a sound-insulating face in soundproof wall equipment that has the plurality of vertically arranged soundproof panels (1A), wherein: the acoustic panel (1B) has a sound absorbing space formed inside filled with a first acoustic material (10) and is provided with an external frame body (12) capable of forming a partitioning wall that separates the sound source from the area around the sound source; an acoustic permeable face that is provided with a plurality of sound through-holes (6) that allow sound to enter and exit between the sound absorbing space and the exterior thereof is formed on a sound-source side front face (13) and back face (14) of the external frame body (12); and a second acoustic material (11) is additionally provided further above the top end of the external frame body (12) in a state in which at least a peripheral face that is not a corner of a top edge on the sound source-side is permeable to air.
More Like This:
| JP3521577 | SOUND ABSORBING MATERIAL |
| WO/2006/098064 | SOUND ABSORBING MATERIAL AND STRUCTURE USING THE SAME |
Inventors:
HOSHINO YASUSHI (JP)
KIYAMA MASAKAZU (JP)
YATSUNAMI SHIMPEI (JP)
FUKITO JUNICHI (JP)
KIYAMA MASAKAZU (JP)
YATSUNAMI SHIMPEI (JP)
FUKITO JUNICHI (JP)
Application Number:
PCT/JP2014/081399
Publication Date:
August 06, 2015
Filing Date:
November 27, 2014
Export Citation:
Assignee:
NIPPON SHEET GLASS ENVIRONMENT AMENITY CO LTD (JP)
International Classes:
E04B1/86; E01F8/00
Domestic Patent References:
| WO2012102278A1 | 2012-08-02 |
Foreign References:
| JP2000144651A | 2000-05-26 | |||
| JPS62186200U | 1987-11-26 | |||
| JP2002266322A | 2002-09-18 | |||
| JPS612516U | 1986-01-09 | |||
| JP2005030116A | 2005-02-03 | |||
| JP2014101747A | 2014-06-05 |
Attorney, Agent or Firm:
KITAMURA, Koji et al. (JP)
Koji Kitamura (JP)
Koji Kitamura (JP)
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