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Title:
SOUND ABSORBING EQUIPMENT
Document Type and Number:
Japanese Patent JP2004062074
Kind Code:
A
Abstract:

To provide noise absorbing equipment which has high sound absorbing performance and high sound insulating performance and exhibits effective sound absorption effect for mainly a frequency to be cosidered.

The sound absorbing equipment 60 includes a corrugated partition plate 52 having a wave-shaped section, a 2nd partition plate 53 which is provided in a direction crossing the corrugated partition plate 52 and partitions an air part extending in sectional view direction (Y-axial direction) of the wave-shaped section of the corrugated partition plate 52, and a sound absorber 51 which is provided covering the partitioned air part from above (in a -Z direction) to form an air layer 70 of specified thickness in between the corrugated partition plate 52.


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Inventors:
NISHIMURA YASUHIKO
Application Number:
JP2002223791A
Publication Date:
February 26, 2004
Filing Date:
July 31, 2002
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
B60R13/08; E04B1/86; E04C2/34; G10K11/16; G10K11/168; G10K11/172; E04B1/74; E04B1/84; (IPC1-7): G10K11/16; B60R13/08
Attorney, Agent or Firm:
Tadahiko Ito