JPH0787635B2 - Speaker diaphragm - Google Patents
Speaker diaphragmInfo
- Publication number
- JPH0787635B2 JPH0787635B2 JP63098650A JP9865088A JPH0787635B2 JP H0787635 B2 JPH0787635 B2 JP H0787635B2 JP 63098650 A JP63098650 A JP 63098650A JP 9865088 A JP9865088 A JP 9865088A JP H0787635 B2 JPH0787635 B2 JP H0787635B2
- Authority
- JP
- Japan
- Prior art keywords
- speaker diaphragm
- speaker
- diaphragm
- paper
- present
- 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 - Fee Related
Links
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 239000010445 mica Substances 0.000 claims description 6
- 229910052618 mica group Inorganic materials 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims description 4
- 239000004952 Polyamide Substances 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- 229920002647 polyamide Polymers 0.000 claims description 4
- 230000002195 synergetic effect Effects 0.000 claims description 3
- 125000002091 cationic group Chemical group 0.000 claims 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 229910000077 silane Inorganic materials 0.000 description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Diaphragms For Electromechanical Transducers (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は各種音響機器に利用されるスピーカ用振動板に
関するものである。Description: TECHNICAL FIELD The present invention relates to a diaphragm for a speaker used in various audio equipment.
従来の技術 一般にスピーカ用振動板の素材には天然パルプ、アルミ
ニウム・チタニウム・ベリリウム・ボロンなどの金属材
料，高分子材料等が主に使われていた。2. Description of the Related Art Generally, the material of speaker diaphragms is mainly made of natural pulp, metallic materials such as aluminum, titanium, beryllium, and boron, and polymer materials.
発明が解決しようとする課題 上記天然パルプ100％の素材は剛性が弱く高域限界再生
周波数帯域が低く、金属材料は素材コストが高く深絞り
成形ができず、高分子材料は耐熱性・接着力に劣るとい
った問題があった。Problems to be Solved by the Invention The material of 100% natural pulp described above has low rigidity and low high limit reproduction frequency band, metal material has high material cost and cannot be deep-drawn, and polymer material has heat resistance and adhesive strength. There was a problem that it was inferior to.
課題を解決するための手段 前記課題を解決するために本発明は、天然パルプにシラ
ンカップリング処理を施したマイカ粉末を混抄し、ポリ
アミドエピクロルヒドリン系樹脂とポリアクリルアミド
樹脂を添加し、相乗効果で紙力増強させ、抄紙し成形・
加工して構成しようとするものである。Means for Solving the Problems In order to solve the above problems, the present invention mixes natural pulp with mica powder that has been subjected to silane coupling treatment, and adds a polyamide epichlorohydrin resin and a polyacrylamide resin, and paper with a synergistic effect. Strengthening, papermaking and molding
It is intended to be processed and configured.
作用 上記構成とすることにより天然パルプにシランカップリ
ング処理を施したマイカ粉末を混抄することで大部分の
マイカ粉末は天然パルプの繊維間に入り込み、剛性を向
上させる。またポリアミドエピクロルヒドリン系樹脂と
ポリアクリルアミド系樹脂を添加し、相乗効果によりパ
ルプの紙力増強を図り、パルプとの結合力を強めること
ができる。Action With the above-mentioned constitution, by mixing the mica powder which has been subjected to the silane coupling treatment to the natural pulp, most of the mica powder penetrates between the fibers of the natural pulp to improve the rigidity. Further, by adding a polyamide epichlorohydrin-based resin and a polyacrylamide-based resin, it is possible to enhance the paper strength of the pulp by a synergistic effect and to strengthen the binding force with the pulp.
実施例 以下、本発明の一実施例におけるスピーカ用振動板につ
いて説明する。Example Hereinafter, a speaker diaphragm according to an example of the present invention will be described.
天然パルプを離解し、ショッパーリグラー法で20゜まで
叩解する。これに中心粒径100μのシランカップリング
処理を施したマイカ粉末を重量比で20％添加する。顔料
を添加し着色した後、ポリアミドエピクロルヒドリン径
樹脂とポリアクリルアミド系樹脂を重量比で２％づつ添
加し紙力増強させる。硫酸アルミニウムを添加しPHを約
4.5に調整し定着させた後、耐水・耐湿強度を向上させ
るために合成高分子サイズ剤を約１％添加する。この後
に脱水・抄紙加工を経てプレス加工を行い、第１図のよ
うなスピーカ用振動板を得た。第１図において１はコー
ン部、２はエッジ部である。The natural pulp is disintegrated and beaten up to 20 ° by the Shopper Wrigler method. To this, 20% by weight of mica powder that has been subjected to silane coupling treatment with a central particle size of 100 μm is added. After the pigment is added and colored, the polyamide epichlorohydrin resin and the polyacrylamide resin are added in an amount of 2% by weight to enhance the paper strength. Add aluminum sulfate to add PH
After adjusting to 4.5 and fixing, add about 1% of synthetic polymer sizing agent to improve water and humidity resistance. After this, dehydration and papermaking were performed, followed by pressing to obtain a speaker diaphragm as shown in FIG. In FIG. 1, 1 is a cone portion and 2 is an edge portion.
添加したマイカ粉末及び紙力増強剤の物性を示す。The physical properties of the added mica powder and paper strength enhancer are shown below.
次に本発明のスピーカ用振動板と従来のスピーカ用振動
板との物性値の比較を示す。従来品はパルプNBKP100％
を離解し、20゜SRに叩解し、ロジンサイズ剤を重量比で
約１％添加し、硫酸アルミニウムでPHを約4.5に定着さ
せた後、プレス加工にてスピーカ用振動板を成形したも
のである。 Next, a comparison of physical property values between the speaker diaphragm of the present invention and the conventional speaker diaphragm will be shown. Conventional product is pulp NBKP 100%
Was disintegrated, beaten to 20 ° SR, rosin sizing agent was added at about 1% by weight, PH was fixed at about 4.5 with aluminum sulfate, and a speaker diaphragm was formed by press working. is there.
本発明品が従来品に比べてヤング率・弾性率・曲げ剛性
等倍以上の数値となっている。 The product of the present invention has Young's modulus, elastic modulus, flexural rigidity, etc. more than those of conventional products.
第２図に本発明のスピーカ用振動板を用いたスピーカの
音圧周波数特性を破線で示し、実線の従来品に比べ平坦
で高域限界周波数のより高い音圧周波数特性となってい
る。In FIG. 2, a sound pressure frequency characteristic of a speaker using the speaker diaphragm of the present invention is shown by a broken line, which is flat and has a higher sound pressure frequency characteristic with a higher high limit frequency as compared with the conventional product of a solid line.
発明の効果 以上のように本発明のスピーカ用振動板は構成されるた
め、スピーカ用振動板に要求される物性値の高い振動板
を従来の設備を用いて簡単に製造でき、高域限界周波数
のより高い平坦な音圧周波数特性を提供することのでき
る工業的価値の大なるものである。EFFECTS OF THE INVENTION Since the speaker diaphragm of the present invention is configured as described above, a diaphragm having high physical properties required for the speaker diaphragm can be easily manufactured using conventional equipment, and the high-frequency band It is of great industrial value that can provide a higher flat sound pressure frequency characteristic.
第１図は本発明のスピーカ用振動板の一実施例を示す断
面図、第２図は従来のスピーカ用振動板と本発明のスピ
ーカ用振動板を用いたスピーカの音圧周波数特性図であ
る。 １……コーン部、２……エッジ部。FIG. 1 is a cross-sectional view showing an embodiment of a speaker diaphragm of the present invention, and FIG. 2 is a sound pressure frequency characteristic diagram of a speaker using the conventional speaker diaphragm and the speaker diaphragm of the present invention. . 1 ... Cone part, 2 ... Edge part.
Claims (1)
したマイカ粉末を20wt％以下添加して混抄し、ポリアミ
ドエピクロルヒドリン系樹脂とカチオン性のポリアクリ
ルアミド系樹脂をそれぞれ2wt％以下添加し、相乗効果
で紙力増強させ、抄紙し成形加工したスピーカ用振動
板。1. A natural pulp containing 20 wt% or less of silane-coupling-treated mica powder to be mixed and mixed, and a polyamide epichlorohydrin resin and a cationic polyacrylamide resin each of 2 wt% or less to produce a synergistic effect. A diaphragm for a speaker that is made by paper-making and paper-forming with increased paper strength.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63098650A JPH0787635B2 (en) | 1988-04-21 | 1988-04-21 | Speaker diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63098650A JPH0787635B2 (en) | 1988-04-21 | 1988-04-21 | Speaker diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01269394A JPH01269394A (en) | 1989-10-26 |
| JPH0787635B2 true JPH0787635B2 (en) | 1995-09-20 |
Family
ID=14225379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63098650A Expired - Fee Related JPH0787635B2 (en) | 1988-04-21 | 1988-04-21 | Speaker diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0787635B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007005992A (en) * | 2005-06-22 | 2007-01-11 | Matsushita Electric Ind Co Ltd | Speaker diaphragm, speaker using the same, and electronic device and apparatus using the speaker |
| WO2007099865A1 (en) * | 2006-03-01 | 2007-09-07 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing component for speaker by papermaking, copmponent for speaker by papermaking, vibrating plate for speaker, subcone for speaker, dust cap for speaker, and speaker |
| JP6074584B2 (en) * | 2012-01-25 | 2017-02-08 | パナソニックＩｐマネジメント株式会社 | Manufacturing method of high aspect ratio narrow type diaphragm or thin diaphragm, speaker diaphragm manufactured by this manufacturing method, speaker, electronic device, mobile device. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5459416A (en) * | 1977-10-17 | 1979-05-14 | Japan Carlit Co Ltd | Production of high strength paper or cardboard |
| JPS58201839A (en) * | 1982-05-19 | 1983-11-24 | Sumitomo Chem Co Ltd | Paper strengthening agent resin composition having improved laminating property |
| JPS5921197A (en) * | 1982-07-27 | 1984-02-03 | Onkyo Corp | Diaphragm for electroacoustic transducer |
| JPS6149595A (en) * | 1984-08-18 | 1986-03-11 | Matsushita Electric Ind Co Ltd | Diaphragm for plane speaker |
-
1988
- 1988-04-21 JP JP63098650A patent/JPH0787635B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01269394A (en) | 1989-10-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |