JPS63158088U

JPS63158088U -

Info

Publication number: JPS63158088U
Application number: JP5096687U
Authority: JP
Priority date: 1987-04-06
Filing date: 1987-04-06
Publication date: 1988-10-17

Description

[Brief explanation of the drawing]

第１図ａ及びｂは本考案の実施例を示す図で、
図ａは平面斜視図、図ｂは一部を断面で示した側
面図、第２図ａ，ｂ及びｃは内側の補強リング及
び補強リブを示す図で、図ａは平面図、図ｂは図
ａのＡ―Ａ断面図、図ｃは図ａのＢ―Ｂ断面図、
第３図は外側の補強リング及び補強リブを示す図
で、図ａは底面図、図ｂは図ａのＡ′―Ａ′断面
図、図ｃは図ａのＢ′―Ｂ′断面図、第４図ａ，
ｂは本考案の他の実施例を示す図で、図ａは断面
図、図ｂは補強リブの斜視図、第５図ａはコイル
ボビンの撓み現象を説明する図、第５図ｂは従来
のスピーカ用振動板の断面図、第６図は従来のス
ピーカ用振動板を説明する図である。１……コーン、２……内側補強リング、３……
内側補強リブ、４……外側補強リング、５……外
側補強リブ、６……ネツク、７……補強リブ。 FIGS. 1a and 1b are diagrams showing an embodiment of the present invention,
Figure a is a plan perspective view, Figure b is a partially sectional side view, Figures 2 a, b and c are views showing the inner reinforcing ring and reinforcing ribs, Figure a is a plan view, and Figure b is a AA sectional view in figure a, figure c is BB sectional view in figure a,
Figure 3 is a diagram showing the outer reinforcing ring and reinforcing ribs; Figure a is a bottom view, Figure b is a sectional view taken along A'-A' in Figure a, Figure c is a sectional view taken along B'-B' in Figure Figure 4a,
5b is a diagram showing another embodiment of the present invention, FIG. 5a is a sectional view, FIG. A sectional view of a speaker diaphragm, FIG. 6 is a diagram illustrating a conventional speaker diaphragm. 1... Cone, 2... Inner reinforcing ring, 3...
Inner reinforcing rib, 4... Outer reinforcing ring, 5... Outer reinforcing rib, 6... Net, 7... Reinforcing rib.

Claims

[Claims for Utility Model Registration] (1) A diaphragm for a speaker made by injection molding polypropylene, characterized in that a reinforcing portion for preventing deflection of the voice coil is provided near the neck of the cone. . (2) The speaker diaphragm according to claim 1, wherein the reinforcing portion includes at least one of an inner reinforcing ring and an inner reinforcing rib, and an outer reinforcing ring and an outer reinforcing rib. (3) The speaker diaphragm according to claim 1, wherein the reinforcing portion is provided with reinforcing ribs extending along the inner diameter of the cone neck.