会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 41. 发明专利
    • SPEAKER
    • JPH01143495A
    • 1989-06-06
    • JP30016887
    • 1987-11-30
    • PIONEER ELECTRONIC CORP
    • SHIRAKAWA HIROYUKI
    • H04R7/16H04R1/02H04R1/24H04R9/02
    • PURPOSE:To eliminate the disturbance in the back pressure of a diaphragm due to the presence of a frame and to prevent the production of noise sound due to vibration of a baffle plate or the like by providing a support lever in a standing way to a diaphragm at the center of a magnetic circuit of a speaker and supporting a support arm supporting a flange fitted to the circumference of the diaphragm. CONSTITUTION:A voice coil 13 wound on a bobbin 12 fitted to the center of the diaphragm is inserted in a magnetic gap of the diaphragm 11 formed as a cone shape. A mount hole is made to the center of a center pole 1a of a magnetic circuit 1, the lower end of the support lever 14 is inserted and fixed thereto and the support lever 14 is stood to the magnetic circuit 1. The center of the radial support arms 16 with a disk flange 15 fitted to the outer end is fixed to the upper end of the support lever 14 and the flange 15 is supported by the support lever 14. The outer circumference part 18 of the outer circumference edge 17 of the diaphragm 11 is adhered to the lower face of the range 16 and the diaphragm 11 is supported by the flange 15. A center cap 20 is adhered to the diaphragm 11 and a damper 21 is adhered between the bobbin 12 and a top plate 1c.