JPS62263796A - Diaphragm for speaker - Google Patents
Diaphragm for speakerInfo
- Publication number
- JPS62263796A JPS62263796A JP10645486A JP10645486A JPS62263796A JP S62263796 A JPS62263796 A JP S62263796A JP 10645486 A JP10645486 A JP 10645486A JP 10645486 A JP10645486 A JP 10645486A JP S62263796 A JPS62263796 A JP S62263796A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal polymer
- diaphragm
- rigidity
- speaker
- 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.)
- Pending
Links
- 229920000106 Liquid crystal polymer Polymers 0.000 claims abstract description 21
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 claims abstract description 21
- 239000000945 filler Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 239000004743 Polypropylene Substances 0.000 description 5
- -1 polypropylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野［
本発明はスピーカにおける振１１Ｊ板に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a 11J plate for a speaker.
［従来の技術］
従来、振動板材料にはバルブ、金属、樹脂等が用いられ
ており樹脂としてはポリプロピレンが多く用いられてい
た。このポリプロピレンは成形性がゆれているという利
点を有する反面、耐熱性が悪く使用時においてボイスコ
イル付近で発生した熱により変形してしまう欠点を有し
ていた。また、充填材を加えて強化しても剛性が不足し
、その結果スピーカ動作時に分割共振を起こしゃすくな
りさらに再生周波数帯域も充分にとれないなどの欠点を
有していた。[Prior Art] Conventionally, valves, metals, resins, etc. have been used as diaphragm materials, and polypropylene has often been used as the resin. Although this polypropylene has the advantage of variable moldability, it has the disadvantage of poor heat resistance and deformation due to heat generated near the voice coil during use. Further, even if reinforced by adding a filler, the rigidity is insufficient, and as a result, split resonance is likely to occur during speaker operation, and the reproduction frequency band cannot be obtained sufficiently.
［発明が解決しようとする問題点１
上述のように従来のポリプロピレン裂振動板はｉ！ｉ４
熱性、剛性等の点で劣るものであり本考案は液晶ポリマ
ーを用いて成形することにより耐熱性、剛性の点でゆれ
た振動板を提供することを目的とする。[Problem to be solved by the invention 1 As mentioned above, the conventional polypropylene crack diaphragm is i! i4
However, the object of the present invention is to provide a diaphragm that is inferior in terms of heat resistance and rigidity by molding it using a liquid crystal polymer.
［問題点を解決するための手段１
木花明は液晶ポリマーを振Ｖ」板材料とすることが特徴
であり、以下この実施例を説明する。第１図は本発明に
係る振動板の成形手段を示す図である。所定形状の空域
を有する金型１にゲート２から所定の液晶ポリマー３を
流し込み成形される。[Means for Solving the Problems 1] Konohanamei is characterized by using liquid crystal polymer as the material for the V'' plate, and an example of this will be described below. FIG. 1 is a diagram showing a means for forming a diaphragm according to the present invention. A predetermined liquid crystal polymer 3 is poured into a mold 1 having an air space of a predetermined shape through a gate 2 and molded.
液晶ポリマー３を加熱しコーンネック部に設けたゲート
２により射出すると液晶ポリマー３は放射方向に広がっ
て成形される。液晶ポリマー３は流動方向に配向するた
め放射方向にゆれた剛性を有する振動板を得ることがで
きる。When the liquid crystal polymer 3 is heated and injected through the gate 2 provided at the cone neck, the liquid crystal polymer 3 spreads in the radial direction and is molded. Since the liquid crystal polymer 3 is oriented in the flow direction, it is possible to obtain a diaphragm having rigidity that swings in the radial direction.
表１に従来のポリプロピレン及び本光明による液晶ポリ
マーの曲げ弾性率及び熱変形温度を示す。Table 1 shows the flexural modulus and heat distortion temperature of conventional polypropylene and the liquid crystal polymer according to the present invention.
表１ ＰＰと液晶ポリマーの比較
＊ポリプラスチックス（株）ベクトラ
表１から明らかなように無充填、充填材強化のもの双方
とも液晶ポリマーが優れていることがわかる。Table 1 Comparison of PP and Liquid Crystal Polymer *Vectra from Polyplastics Co., Ltd. As is clear from Table 1, the liquid crystal polymer is superior to both unfilled and filler-reinforced products.
なお、上記実施例では射出成形によって振ｖＪ板を成形
しているが、一度シート化した後加熱成形してもよい。In the above embodiment, the shaken vJ plate is formed by injection molding, but it may also be formed into a sheet and then heated and molded.
更に液晶ポリマーをカーボンクロスなどに含浸、熱成形
しても上記実施例と同様の効果を奏する。Furthermore, the same effect as in the above embodiment can be obtained by impregnating a liquid crystal polymer into carbon cloth or the like and thermoforming it.
［発明の効果］
以上のように本発明によれば液晶ポリマーにより振動板
を構成したので、剛性、耐熱性とも浸れ再生周波数帯域
も広く入力に耐えられるスピーカ用振動板を提供するこ
とができる。[Effects of the Invention] As described above, according to the present invention, since the diaphragm is made of a liquid crystal polymer, it is possible to provide a diaphragm for a speaker that has good rigidity and heat resistance, and can withstand input over a wide reproduction frequency band.
第１図は本発明に係るスピーカ用振動板の成形手段を示
す図。
１・・・・・・金型
２・・・・・・ゲーｌへ
３・・・・・・樹脂
特 許 出 願 人
パイオニア株式会社FIG. 1 is a diagram showing a means for forming a speaker diaphragm according to the present invention. 1...Mold 2...Go to game 3...Resin patent applicant Pioneer Corporation
Claims (3)
スピーカ用振動板。(1) A speaker diaphragm characterized by being formed of a liquid crystal polymer.
徴とする特許請求の範囲第１項記載のスピーカ用振動板
。(2) The speaker diaphragm according to claim 1, wherein the liquid crystal polymer is oriented in the radial direction.
徴とする特許請求の範囲第１項記載のスピーカ用振動板
。(3) The speaker diaphragm according to claim 1, wherein a filler is added to the liquid crystal polymer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10645486A JPS62263796A (en) | 1986-05-09 | 1986-05-09 | Diaphragm for speaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10645486A JPS62263796A (en) | 1986-05-09 | 1986-05-09 | Diaphragm for speaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62263796A true JPS62263796A (en) | 1987-11-16 |
Family
ID=14434041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10645486A Pending JPS62263796A (en) | 1986-05-09 | 1986-05-09 | Diaphragm for speaker |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62263796A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01270490A (en) * | 1988-04-22 | 1989-10-27 | Foster Electric Co Ltd | Diaphragm for heat resisting speaker and manufacture thereof |
| JPH028292U (en) * | 1988-06-28 | 1990-01-19 | ||
| EP0424841A2 (en) * | 1989-10-23 | 1991-05-02 | Sony Corporation | Speaker diaphragm and method for making it |
-
1986
- 1986-05-09 JP JP10645486A patent/JPS62263796A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01270490A (en) * | 1988-04-22 | 1989-10-27 | Foster Electric Co Ltd | Diaphragm for heat resisting speaker and manufacture thereof |
| JPH028292U (en) * | 1988-06-28 | 1990-01-19 | ||
| EP0424841A2 (en) * | 1989-10-23 | 1991-05-02 | Sony Corporation | Speaker diaphragm and method for making it |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62263796A (en) | Diaphragm for speaker | |
| US20180270596A1 (en) | Loudspeaker-diaphragm and loudspeaker including the same | |
| GB2072694A (en) | Vibratory elements for audio equipment | |
| JP4572490B2 (en) | Speaker | |
| JP4006981B2 (en) | Speaker | |
| JPH0360300A (en) | Manufacture of speaker | |
| JPS5912230B2 (en) | Speaker non-vibration system components | |
| JPS6336793Y2 (en) | ||
| JPS5848868Y2 (en) | edge for speaker | |
| JP4262385B2 (en) | Injection molding method for speaker diaphragm | |
| JPS6482800A (en) | Manufacture of diaphragm for speaker | |
| JPH02214294A (en) | Diaphragm for speaker | |
| JPS5819913Y2 (en) | Diaphragm for speakers | |
| JP3086872U (en) | Loudspeaker | |
| JPS58157294A (en) | Diaphragm for speaker | |
| JPH0477095A (en) | Diaphragm for speaker | |
| JPH0625119Y2 (en) | Speaker | |
| JP2530015Y2 (en) | Speaker diaphragm structure | |
| JPS58114696A (en) | Speaker diaphragm | |
| JPH0113512Y2 (en) | ||
| JPH04172798A (en) | Speaker | |
| JPS6353760B2 (en) | ||
| JPH05292593A (en) | Diaphragm for speaker and manufacture thereof | |
| JPS5845878Y2 (en) | Seat skin | |
| JPH0349514Y2 (en) |