发明申请
- 专利标题： Multifunction speaker
- 专利标题（中）： 多功能扬声器
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申请号： US11079103申请日： 2005-03-15
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公开(公告)号： US20050207610A1公开(公告)日： 2005-09-22
- 发明人: Hiroo Kajiwara , Kazumi Miyamoto
- 申请人： Hiroo Kajiwara , Kazumi Miyamoto
- 优先权： JP2004-077672 20040318
- 主分类号： H04R9/02
- IPC分类号： H04R9/02 ; B06B1/04 ; H04M1/03 ; H04R1/00 ; H04R1/02 ; H04R9/00 ; H04R9/06 ; H04R13/00 ; H04R25/00 ; H04R31/00
摘要：
A multifunction speaker has a frame made of an insulation material and having a cylindrical portion, a pair of supporting springs secured to the frame and to a magnetic circuit for supporting the magnetic circuit. The magnetic circuit comprises a pole piece having a center pole and a flange on which an annular magnet is mounted. The flange of the pole piece has a pair of positioning projections projected from a periphery of the flange for positioning the magnet.
公开/授权文献
- US07454031B2 Multifunction speaker 公开/授权日：2008-11-18
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