| 摘要 |
PROBLEM TO BE SOLVED: To provide a small and thin speaker device capable of emitting a sound without deteriorating the sound quality of a low-pitched sound region. SOLUTION: A tweeter 3, a woofer 2 and an opening 25 of a sound guiding tube 20 are arranged on the front wall 11 of a housing 1 of the speaker device. The sound guiding tube 20 has the opening 25 at the front wall 11 side, extends toward a back wall 4 side, curves at a connection position of a side wall 15 and the back wall 4 and extends from a bottom wall 13 to a ceiling wall 12, wherein a cross-section perpendicular to the extending direction is in a shape of a wide rectangle. A vertical middle wall 14B is installed at the back wall 4 side of the housing 1, and a drone cone 5 is installed on the vertical middle wall 14B. The drone cone 5 reinforces a low-pitched sound region of a sound from the woofer 2 and propagates the sound to the sound guiding tube 20. A low-pitched reinforced sound wave propagated to the sound guiding tube 20 propagates in the sound guiding tube 20 and is emitted from the opening 25. COPYRIGHT: (C)2008,JPO&INPIT
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