JPS58191792U

JPS58191792U - Diaphragm in electroacoustic transducer

Info

Publication number: JPS58191792U
Application number: JP8870682U
Authority: JP
Inventors: 仲村　昭
Original assignee: ヤマハ株式会社
Priority date: 1982-06-16
Filing date: 1982-06-16
Publication date: 1983-12-20
Also published as: JPS6342795Y2

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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ａ、　　ｂは複合材料によって形成されたドーム
状振動板の従来例を示す斜視図および展開図、第２図は
この考案をコーン状振動板に適用した場合の一実施例を
示す斜視図、第３図は同振動板の正面図、第４図は同振
動板の一部省略分解斜視図、第５図は第４図■−Ｖ線拡
大断面図、第６図は帯状シートの要部平面図、第７図は
第６図■−■線　　−拡大断面図、第８図および第９図
は振動板の製作を説明するための図、第１０図はこの考
案の他の実施例を示す正面図、第１１図はリング状シー
トの平面図、第１２図はこの考案をドーム状振動板に適
用した場合の一実施例を示す平面図、第１３図は第１２
図Ｘ−Ｘ線断面図である。１０．５０・・・・・・コーン状振動板、１１．５１・
・・・・・第１の複合材シート、１１ａ〜１　ｉｆ、　
　５１ａ〜５１ｆ・・・・・・シート片、１２．５２・
・・・・・第２の複合材シート、１２ａ〜１２ｆ、　　
５２ａ　〜５２ｆｍ＊ａ−シート片、１３．５３・・・
・・・帯状シート、１５．１９・・・・・・炭素繊維、
１６．２０・・曲マトリクス材、Ａ・・・・・・繊維方
向。Figures 1a and b are perspective views and developed views showing a conventional example of a dome-shaped diaphragm made of a composite material, and Figure 2 is a perspective view showing an example in which this invention is applied to a cone-shaped diaphragm. Figure 3 is a front view of the same diaphragm, Figure 4 is a partially omitted exploded perspective view of the same diaphragm, Figure 5 is an enlarged sectional view taken along the line ■-V in Figure 4, and Figure 6 is a strip-shaped sheet A plan view of the main part, Fig. 7 is an enlarged sectional view of Fig. 6 - ■ line, Fig. 8 and Fig. 9 are diagrams for explaining the production of the diaphragm, and Fig. 10 is another implementation of this invention. FIG. 11 is a front view showing an example, FIG. 11 is a plan view of a ring-shaped sheet, FIG.
It is a sectional view taken along the line XX in FIG. 10.50... Cone-shaped diaphragm, 11.51.
...First composite sheet, 11a-1 if,
51a-51f... Sheet piece, 12.52.
...Second composite sheet, 12a to 12f,
52a ~52fm*a-sheet piece, 13.53...
...Band-shaped sheet, 15.19...Carbon fiber,
16.20...Curved matrix material, A...Fiber direction.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

（１）高縦弾性率を有し、一方向に配列された多数の強
化繊維とこれら繊維を結合するマトリクス材とで構成さ
れ、所定の振動板形状に前記繊維の方向を振動板の放射
方向にそろえて形成された複合材シートと、高縦弾性率
を有する多数の強化繊維とこれら強化繊維を結合するマ
トリクス材とで構成され、前記複合材シートに積層配置
される帯状シートとを具備してなり、前記帯状シートは
その繊維の方向を長手方向にそろえて形成され、かつ振
動板の周方向と繊維の方向が同一方向になるように複合
材シートに積層されることを特徴とする電気音響変換器
における振動板。(1) It has a high modulus of longitudinal elasticity and is composed of a large number of reinforcing fibers arranged in one direction and a matrix material that binds these fibers, and the direction of the fibers is set in the radial direction of the diaphragm to form a predetermined diaphragm shape. a composite material sheet formed in alignment with the composite material sheet, and a band-shaped sheet made of a large number of reinforcing fibers having a high longitudinal elastic modulus and a matrix material for bonding these reinforcing fibers, and laminated and arranged on the composite material sheet. The belt-shaped sheet is formed with its fibers aligned in the longitudinal direction, and is laminated on the composite sheet so that the circumferential direction of the diaphragm and the direction of the fibers are in the same direction. A diaphragm in an acoustic transducer.

（２）複合材シートは振動板を展開した複数のシート片
で構成されることを特徴とする実用新案登録請求の範囲
第１項記載の電気音響変換器における振動板。(2) A diaphragm in an electroacoustic transducer according to claim 1, wherein the composite sheet is composed of a plurality of sheet pieces in which a diaphragm is developed.