PURPOSE: To enable a perfect stereophonic voice to be heard without using an earphone or headphone by comprising a planar sounding body by embedding an electroacoustic transducing element connected to audio equipment with tight adhesion so as to resonate with a foamed elastic material.
CONSTITUTION: The planar sounding body 7 is comprised by embedding a thin electroacoustic transducing element 9 equipped with a stereoscopic electrical wire 2 connected to the audio equipment in a part of the area of a plate shape foamed elastic material 8 with tight adhesion so as to resonate with the foamed elastic material 8, and a back wall plane constitutional material 3 is formed in such a way that at least a bag outside plane is covered with covering materials 14a, 14b setting the planar sounding body 7 as a core material. The planar sounding body 7 is constituted of the plate shape foamed elastic material 8 resonating by enclosing the electroacoustic transducing element 9, and it emits a voice from a large voice emitting area, for example, a large area equivalent to the wall plane of a bag. Therefore, a high sound volume as an emitted sound volume per unit area can be obtained as total sound volume for a total area though it is the one with weak sound volume, and a sufficient sound volume for the ear of a person can be obtained even by portable audio equipment small in power source capacity.
| WO/2012/119287 | FOLDABLE GARMENT BAG |
YOSHINO TAKAAKI
KOSAKA SHUICHI
SOWA YOSHIJI
YOSHINO TAKAAKI
KOSAKA SHUICHI
SOWA SENI KOGYO KK
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