JPH0510476Y2 - - Google Patents
Info
- Publication number
- JPH0510476Y2 JPH0510476Y2 JP1984038644U JP3864484U JPH0510476Y2 JP H0510476 Y2 JPH0510476 Y2 JP H0510476Y2 JP 1984038644 U JP1984038644 U JP 1984038644U JP 3864484 U JP3864484 U JP 3864484U JP H0510476 Y2 JPH0510476 Y2 JP H0510476Y2
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- binder
- speaker
- warp
- weft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000011230 binding agent Substances 0.000 claims description 11
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 5
- 239000004917 carbon fiber Substances 0.000 claims description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 238000003856 thermoforming Methods 0.000 claims description 3
- 238000009941 weaving Methods 0.000 claims 1
- 229920001187 thermosetting polymer Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Description
【考案の詳細な説明】
この考案はスピーカー用振動板の改良に関する
ものである。[Detailed description of the invention] This invention relates to an improvement of a diaphragm for a speaker.
従来の、カーボン繊維を経糸および緯糸にとつ
て平織にし、この平織の接合点および織目等に熱
硬化性樹脂等のバインダーを介在せしめたシート
を、所望の形状に、熱成形してなるスピーカー用
振動板は、カーボン繊維のヤング率Ｅおよび剛性
率Ｇがバインダーの固形分におけるヤング率Ｅお
よび剛性率Ｇに較べていづれも大きいため、スピ
ーカー用振動板の中心軸で交わる経糸および緯糸
の方向のヤング率Ｅおよび剛性率Ｇは大きいが、
中心軸で交わる経糸と緯糸とのなす角度の二等分
線方向にはヤング率Ｅおよび剛性率Ｇ共に小さく
なつていた。このことに起因して従来のスピーカ
ー用振動板はピストン振動域が狭くなる欠点があ
つた。 A conventional speaker made by thermoforming a sheet of carbon fiber into a plain weave in the warp and weft, with a binder such as a thermosetting resin interposed at the junctions and weaves of the plain weave into a desired shape. The Young's modulus E and rigidity G of carbon fiber are both larger than the Young's modulus E and rigidity G of the solid content of the binder. Young's modulus E and rigidity G are large, but
Young's modulus E and rigidity modulus G both decreased in the direction of the bisector of the angle formed by the warp and weft intersecting at the central axis. Due to this, conventional speaker diaphragms have the disadvantage that the piston vibration range is narrow.
この考案は叙上の欠点を解消するためになされ
たものである。この考案のスピーカー用振動板
は、カーボン繊維を経糸１および緯糸２にとつて
平織にし、この平織の接合点および織目等に、熱
硬化性樹脂等の、バインダー３を介在せしめたシ
ートを、スピーカー用振動板の中心軸５で交わる
経糸１ａ、緯糸２ａとのなす角度θ（＝90°）を適
宜個数に分割する分割線にそつてバインダーの量
を多くなるように熱成形したものである。 This idea was made to eliminate the drawbacks mentioned above. In the speaker diaphragm of this invention, carbon fibers are made into a plain weave with warp 1 and weft 2, and a sheet with a binder 3 such as a thermosetting resin interposed at the joints and weaves of the plain weave, It is thermoformed so that the amount of binder increases along the dividing line that divides the angle θ (=90°) between the warp 1a and the weft 2a, which intersect at the central axis 5 of the speaker diaphragm into an appropriate number of pieces. .
シートを熱成形する際にはスピーカー用振動板
の表面側、または裏面側、またはいづれの面側の
上型、または下型、または上型および下型に、厚
み代を大きく設定した部分を設けた金型を用い
る。熱硬化性樹脂等からなるバインダー３は熱硬
化温度に至る前の低い温度で一旦軟化してから硬
化する過程を通るので、この一旦軟化する時点
で、バインダー３が金型に設けてある厚み代の部
分に流動して行き、所望の形状になる。バインダ
ー３の温度を上昇してゆき、熱硬化温度に至ると
バインダー３が熱硬化して所望の形状の中間体を
得る。この中間体の不用部分を切断してスピーカ
ー用振動板になる。 When thermoforming a sheet, a part with a large thickness allowance is provided on the front side, back side, or either side of the upper or lower mold, or on the upper and lower molds of the speaker diaphragm. A mold is used. The binder 3 made of a thermosetting resin or the like goes through a process of once softening at a low temperature before reaching the thermosetting temperature and then hardening, so at the point where the binder 3 is once softened, the thickness of the mold It flows into the desired shape. The temperature of the binder 3 is increased, and when it reaches a thermosetting temperature, the binder 3 is thermocured to obtain an intermediate having a desired shape. The unnecessary parts of this intermediate body are cut off to become a speaker diaphragm.
このような振動板は、その中心軸５で交わる経
糸１ａの方向、または緯糸２ａの方向のヤング率
をE1とし、厚みをｈとする剛性率G1は、
G1≒E1×h3
と現わされ、分割線方向のヤング率E2とし厚み
を（ｈ＋△ｈ）とすると剛性率G2は、
G2＝E2×（ｈ＋△ｈ）3
となる。いま、
E2＝１／２E1
なる関係にあつたとする。剛性率G2を剛性率G1
と同じになるまで高めるには、
△ｈ／ｈ＝３√２−１
≒0.26
なる数値計算から、約２割６分増の厚みのリブを
設ければよいことになる。 The rigidity G 1 of such a diaphragm, where E 1 is the Young's modulus in the direction of the warp 1a or the direction of the weft 2a that intersect at the central axis 5, and h is the thickness, is G 1 ≒ E 1 × h 3 If the Young's modulus in the parting line direction is E 2 and the thickness is (h+Δh), then the rigidity modulus G 2 is G 2 =E 2 ×(h+Δh) 3 . Now, suppose we have the relationship E 2 = 1/2E 1 . Rigidity modulus G 2 to Rigidity modulus G 1
In order to increase the thickness to the same value as , it is necessary to provide a rib that is about 26% thicker based on the numerical calculation △h/h=3√2-1 ≒0.26.
このようにして、振動板全面における剛性率の
均一化が実現すると、振動板材の撓み振動が高音
域に至り、延いてはスピーカー用振動板のピスト
ン振動域の拡大を計ることができる。 In this way, when the rigidity is made uniform over the entire surface of the diaphragm, the flexural vibration of the diaphragm material reaches a high frequency range, which in turn makes it possible to expand the piston vibration range of the speaker diaphragm.
尚、この考案のスピーカー用振動板は、図面に
例示したドーム形状のものに限定されるものでは
なく、円錐形状およびこれに類する形状のもの、
楕円錐形状およびこれに類する形状のもの、平板
状のもの、等々に実施しても叙上の効果と同様の
効果を生じるものである。 Note that the speaker diaphragm of this invention is not limited to the dome-shaped one illustrated in the drawings, but can also be used with conical or similar shapes,
Even if it is implemented in an elliptic cone shape, a shape similar thereto, a flat shape, etc., the same effects as those described above will be produced.
第１図はこの考案の実施例を示す斜視図であ
る。
１……経糸、２……緯糸、３……バインダー、
４……リブ、５……中心軸。
FIG. 1 is a perspective view showing an embodiment of this invention. 1... warp, 2... weft, 3... binder,
4...Rib, 5...Central axis.
Claims (1)
にし、該平織の接合点および織目等にバインダ
ーを介在せしめたシートを熱成形してなるスピ
ーカー用振動板において、スピーカー用振動板
の中心軸で交わる経糸と緯糸とのなす角度を適
宜個数に分割する分割線にそつてバインダーの
量を多く介在せしめて厚くした放射状リブを設
けたことを特徴とするスピーカー用振動板。 ２ 分割線が角度の二等分線であることを特徴と
する実用新案登録請求の範囲第１項記載のスピ
ーカー用振動板。[Scope of Claim for Utility Model Registration] 1. A speaker diaphragm made by thermoforming a sheet in which carbon fiber is made into a plain weave by weaving carbon fiber into warp and weft yarns, and a binder is interposed at the joining points and weave of the plain weave, etc. A diaphragm for a speaker, characterized in that thick radial ribs are provided with a large amount of binder interposed along a dividing line that divides the angle formed by the warp and weft intersecting at the central axis of the diaphragm into appropriate numbers. . 2. The speaker diaphragm according to claim 1, wherein the dividing line is a bisector of an angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3864484U JPS60150886U (en) | 1984-03-16 | 1984-03-16 | Diaphragm for speakers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3864484U JPS60150886U (en) | 1984-03-16 | 1984-03-16 | Diaphragm for speakers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60150886U JPS60150886U (en) | 1985-10-07 |
| JPH0510476Y2 true JPH0510476Y2 (en) | 1993-03-15 |
Family
ID=30545843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3864484U Granted JPS60150886U (en) | 1984-03-16 | 1984-03-16 | Diaphragm for speakers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60150886U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5423886U (en) * | 1977-07-19 | 1979-02-16 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5198535U (en) * | 1975-02-04 | 1976-08-07 |
-
1984
- 1984-03-16 JP JP3864484U patent/JPS60150886U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5423886U (en) * | 1977-07-19 | 1979-02-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60150886U (en) | 1985-10-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0942625A3 (en) | Method for fabricating diaphragm-edge integral molding for speakers | |
| EP0322587A3 (en) | Speaker diaphragm | |
| US4711462A (en) | Injection ski and a method of manufacturing same | |
| GB1491080A (en) | Loudspeakers | |
| US4217326A (en) | Method for making a cut glass panel | |
| KR890009612A (en) | How to fabricate parts of constant shape from sandwich structures | |
| US3415709A (en) | Edge reinforced paneling | |
| JPH0510476Y2 (en) | ||
| DE3460951D1 (en) | Composite body element | |
| JPH01167795U (en) | ||
| JPS62109497A (en) | Diaphragm for speaker | |
| JPS5559926A (en) | Production of fiber-reinforced plastic molding | |
| JPS6221696U (en) | ||
| JPH0129914Y2 (en) | ||
| JPH0129915Y2 (en) | ||
| JPS6239395U (en) | ||
| JP2553869Y2 (en) | Speaker diaphragm structure | |
| JPS5610412A (en) | Method of press-molding interior finish parts for car | |
| JPS6317399B2 (en) | ||
| JPH0238159A (en) | Inside panel forming method | |
| JPH079515Y2 (en) | Speaker damper | |
| JP2530015Y2 (en) | Speaker diaphragm structure | |
| JPH0394819U (en) | ||
| JPH0378840B2 (en) | ||
| JPS62257298A (en) | Diaphragm for speaker |