SOUND ABSORPTION BODY, SOUND ABSORPTION PLATE AND SOUND ABSORPTION UNIT

Title:

SOUND ABSORPTION BODY, SOUND ABSORPTION PLATE AND SOUND ABSORPTION UNIT

Document Type and Number:

WIPO Patent Application WO/1996/011464

Kind Code:

A1

Abstract:

In order to constitute a sound absorption construction having excellent sound absorption characteristics and obtain an external appearance of the sound absorption construction free of visual flicker by arranging the sound absorption construction, for example, in front of an air chamber, a plurality of ribs (2a) are formed on one face of a sound absorption plate body (2), and a plurality of through holes (3) are formed in bottom portions (2b) between the adjacent ribs (2a) to make the construction porous. Covering materials (5) are provided between the respective ribs (2a) on the sound absorption plate body (2) to cover the through holes (3).

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JPS5942764	[Title of the Invention] Sound insulating wall
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Inventors:

FUJIWARA KYOJI (JP)
YAMAMURA SHINTA (JP)
FURUTA NAOYUKI (JP)
MIZUKAMI TADANORI (JP)
TASAKI YUTAKA (JP)
MIKAMI TAKASHI (JP)

Application Number:

PCT/JP1995/002067

Publication Date:

April 18, 1996

Filing Date:

October 09, 1995

Export Citation:

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Assignee:

NITTO BOSEKI CO LTD (JP)
FUJIWARA KYOJI (JP)
YAMAMURA SHINTA (JP)
FURUTA NAOYUKI (JP)
MIZUKAMI TADANORI (JP)
TASAKI YUTAKA (JP)
MIKAMI TAKASHI (JP)

International Classes:

E01F8/00; E04B1/86; G10K11/16; G10K11/172; E04B1/82; E04B1/84; (IPC1-7): G10K11/16; E04B1/82

Foreign References:

JPH02272131A	1990-11-06
JPS349966Y1
JPS57140511U	1982-09-03

Other References: