JPS5988996U

JPS5988996U - electrodynamic speaker

Info

Publication number: JPS5988996U
Application number: JP18641182U
Authority: JP
Inventors: 博基古川; 周二佐伯; 和栄佐藤
Original assignee: 松下電器産業株式会社
Priority date: 1982-12-08
Filing date: 1982-12-08
Publication date: 1984-06-16

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図乃至第３図は従来例を示し、第１図ａは平面図、
同すは縦断面図、第２図は共振モードを示し、ａは共振
の腹の位置を示す平面図、ｂはモードの正面図、第３図
は音圧周波数特性図、第４図、第５図は本考案の第１実
施例を示し、第４図ａは平面図、同すは縦断面図、第５
図は音圧周波数特性図、第６図乃至第８図は本考案の第
２実施例を示し、第６図ａは平面図、同すは縦断面図、
第７図は共振モードを示し、ａは共振の腹の位置を示す
平面図、ｂはモードの正面図、第８図は音圧周波数特性
図、第９図は制動片の斜視図である。１１．２１はダストキャップ、１２．２２は矩形コーン
振動板、１３．２３はエツジ、１４゜２４はフレーム、
１５．２５はボイスコイル、１６．２６はダンパー、２
０．３０は制動片。第２図　　　　（ＣＢ第３図コFigures 1 to 3 show conventional examples, Figure 1a is a plan view,
2 shows a resonance mode, a is a plan view showing the position of the antinode of resonance, b is a front view of the mode, FIG. 3 is a sound pressure frequency characteristic diagram, FIGS. 5 shows the first embodiment of the present invention, FIG. 4a is a plan view, the same is a longitudinal sectional view, and FIG.
The figure is a sound pressure frequency characteristic diagram, Figures 6 to 8 show a second embodiment of the present invention, Figure 6a is a plan view, and the same is a longitudinal sectional view.
FIG. 7 shows a resonance mode, a is a plan view showing the position of an antinode of resonance, b is a front view of the mode, FIG. 8 is a sound pressure frequency characteristic diagram, and FIG. 9 is a perspective view of a brake piece. 11.21 is the dust cap, 12.22 is the rectangular cone diaphragm, 13.23 is the edge, 14°24 is the frame,
15.25 is the voice coil, 16.26 is the damper, 2
0.30 is the brake piece. Figure 2 (CB Figure 3)

Claims

[Scope of utility model registration request]

(1) An electrodynamic speaker including a rectangular cone diaphragm and a damping material fixed to the rectangular cone diaphragm.

(2) The electrodynamic speaker according to claim 1, wherein a voice coil is attached to the center of the rectangular cone diaphragm.

(3) The electrodynamic speaker according to claim 1, wherein the voice coil is mounted eccentrically in the longitudinal direction of the rectangular cone diaphragm.