发明名称 Speaker device
摘要 In a speaker device 10 having: a magnetic circuit 13 including a magnet 14 and a yoke 11; a voice coil 16 which is placed in a magnetic gap 12 of the magnetic circuit 13; and a diaphragm 17 which is vibrating available in a state where the diaphragm is coupled with the voice coil 16, a peripheral edge of the diaphragm 17 being fixed to a housing 20, a damper holder 30 is disposed in a portion where a damper 27 is attached to the housing 20. The damper holder 30 is in point contact with the housing 20 via three or more projections 31 which are disposed on one of the damper holder 30 and the housing 20. Preferably, the damper holder 30 is made of a hybrid material of a resin (polypropylene) and tungsten, and has a specific gravity of 10.0 or larger.
申请公布号 US7010141(B2) 申请公布日期 2006.03.07
申请号 US20030717642 申请日期 2003.11.21
申请人 TOHOKU PIONEER CORPORATION 发明人 SUGIURA HIDEAKI;NAKATA TAIZO;NISHIKAWA TETSUO
分类号 H04R9/02;H04R25/00;H04R7/12;H04R9/04;H04R31/00 主分类号 H04R9/02
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