JPH03173299A - Diaphragm for speaker - Google Patents
Diaphragm for speakerInfo
- Publication number
- JPH03173299A JPH03173299A JP31359589A JP31359589A JPH03173299A JP H03173299 A JPH03173299 A JP H03173299A JP 31359589 A JP31359589 A JP 31359589A JP 31359589 A JP31359589 A JP 31359589A JP H03173299 A JPH03173299 A JP H03173299A
- Authority
- JP
- Japan
- Prior art keywords
- diaphragm
- urethane foam
- urethane
- edge member
- film
- 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.)
- Granted
Links
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000006260 foam Substances 0.000 claims abstract description 12
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 229920000570 polyether Polymers 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 238000002844 melting Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 229920005989 resin Polymers 0.000 abstract description 6
- 239000011347 resin Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000035699 permeability Effects 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 239000000853 adhesive Substances 0.000 abstract description 2
- 230000001070 adhesive effect Effects 0.000 abstract description 2
- 238000003475 lamination Methods 0.000 abstract description 2
- 239000004952 Polyamide Substances 0.000 description 2
- 229920002647 polyamide Polymers 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 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
本発明は各種音響機器に使用されるスピーカに用いるス
ピーカ用振動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 speaker diaphragm used in speakers used in various types of audio equipment.
従来の技術
従来のスピーカ用振動板のエツジ基材には、ＳＢＲ、Ｎ
ＢＲ等の樹脂をコーティングした木綿やポリアミドの織
布、また発泡ウレタンシートなどが用いられていた。Conventional technology The edge base material of conventional speaker diaphragms includes SBR, N
Cotton or polyamide woven fabrics coated with resin such as BR, and foamed urethane sheets were used.
発明が解決しようとする課題
木綿１ｏＯ％の織布は、耐熱・耐湿等に弱く、またポリ
アミド材は剛性があり耐環境特性も良好であるが、基材
とコーティング樹脂との密着性が悪く、特に大振幅時に
エツジ材と振動板が剥がれると言った接着性の悪さがあ
った。寸た、発泡ウレタンシートは振幅特性に強く低音
域の音質が良好であることから広く使用されているが、
耐候性に弱く、さらに通気性が高いため水分を通しやす
く耐水性に弱いといった課題があった。Problems to be Solved by the Invention Woven fabrics made of 100% cotton are weak in heat resistance and moisture resistance, and polyamide materials are rigid and have good environmental resistance, but the adhesion between the base material and the coating resin is poor. In particular, the adhesiveness was poor, with the edge material and diaphragm peeling off when the vibration was large. Urethane foam sheets are widely used because they have strong amplitude characteristics and good sound quality in the low frequency range.
It has weak weather resistance, and because it has high breathability, it easily allows moisture to pass through, making it weak in water resistance.
本発明は以上のような従来の欠点を除去し、耐熱・耐候
性にすぐれ、防水性に優れたスピーカ用振動板を提供し
ようとするものである。The present invention aims to eliminate the above-mentioned conventional drawbacks and provide a speaker diaphragm that has excellent heat resistance, weather resistance, and waterproofness.
課題を解決するための手段
上記の課題を解決するために本発明は、ポリエステル系
又はポリエーテル系の軟質ポリウレタンフォームの表面
に、ウレタンフオームと同材料の熱可塑性の樹脂被膜を
熱ラミネー）Ｋて接着して構成したエツジ材を、所定の
形状に加熱成型したものを振動板本体に結合したもので
ある。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention heat-laminates a thermoplastic resin coating made of the same material as the urethane foam on the surface of a polyester-based or polyether-based flexible polyurethane foam. The diaphragm is made by bonding an edge material, heat-molding it into a predetermined shape, and joining it to the diaphragm body.
作用
上記構成とすることにより、エツジ材の表面を樹脂被膜
で保護しているため耐候性が大幅に向上する。また表面
被膜により通電遮断効果があり、水分を通さず、耐水・
耐湿効果が向上する。Effect: With the above structure, the surface of the edge material is protected by a resin coating, so weather resistance is greatly improved. In addition, the surface coating has a current blocking effect, does not allow moisture to pass through, and is water resistant.
Improves moisture resistance.
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 A speaker diaphragm according to an example of the present invention will be described below.
第１図において、１けパルプ繊維などを抄紙して構成さ
れるコーン状の振動板本体で、２はこの振動板本体１の
外周部に結合されたエツジ材である。In FIG. 1, there is a cone-shaped diaphragm body made of paper made of pulp fibers, etc., and 2 is an edge material bonded to the outer periphery of the diaphragm body 1. As shown in FIG.
第２図に本発明に使用されるエツジ基材を示す。FIG. 2 shows the edge base material used in the present invention.
３は密度ｆ）ｓｓｋｇ／ばのポリエーテルウレタンフオ
ームの２０倍発発泡を８Ｈの厚さにスライスしたもので
あり、片側表面に６０μの厚さのウレタンフィルムより
なるウレタン被膜４を、ウレタンフオーム３の表面を熱
ラミネートにて溶かして密着一体化したものである。3 is a 20 times foamed polyether urethane foam with a density f)sskg/ba sliced into a thickness of 8H, and a urethane coating 4 made of a urethane film with a thickness of 60 μm is provided on one surface of the urethane foam 3. The surfaces of the two are melted and integrated with heat lamination.
第３図に本発明の耐候性試験結果を示す。従来のウレタ
ンフオームが時間と共に材厚が薄くなるのに対し、本発
明品は経時変化による材厚の変化はない。FIG. 3 shows the results of the weather resistance test of the present invention. While the thickness of conventional urethane foam becomes thinner over time, the thickness of the product of the present invention does not change over time.
また、通気度を測定した結果 のようになった。In addition, the results of measuring the air permeability It became like this.
（Ｊ Ｉ ５−Ｌ−１００４フラジ一ル形試験機使用）
以上のように本発明品はほとんど通気性がない。(Using J I 5-L-1004 Frazile type tester)
As described above, the product of the present invention has almost no air permeability.
このエツジ基材を金型温度２００℃、プレス時間２０５
ｅｌＣの条件で成形し第１図に示すエツジ材２を構成し
、振動板本体１と貼り合わせてスピーカ用振動板を得た
。This edge base material was molded at a mold temperature of 200℃ and a press time of 205℃.
The edge material 2 shown in FIG. 1 was formed by molding under elC conditions, and was bonded to the diaphragm body 1 to obtain a speaker diaphragm.
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、耐候性に優れまた通気性がほとんど無いため防水効
果もあり、さらにエツジ表面の樹脂層により光沢や色彩
の自由度が広がり、外観品位も高くなる。一方では接着
剤を使わずにウレタンフオームと同材質の樹脂被膜層を
一体化させているため、大振幅時の歪みも少なく工業的
価値の大なるものである。Effects of the Invention As the speaker diaphragm of the present invention is structured as described above, it has excellent weather resistance and has almost no air permeability, so it has a waterproof effect, and the resin layer on the edge surface allows for flexibility in gloss and color. It spreads and the appearance quality improves. On the other hand, because the urethane foam and the resin coating layer made of the same material are integrated without using adhesives, there is little distortion at large amplitudes, making it of great industrial value.
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図は本発明に用いるエツジ基材の構造を示す
断面図、第３図は本発明の耐候性試験結果を示す特性図
である。
１・・・・・・振動板本体、２・・・・・・エツジ材、
３・・・・・・ウレタンフオーム、４・・・・・・ウレ
タン被膜。FIG. 1 is a sectional view showing an embodiment of the speaker diaphragm of the present invention, FIG. 2 is a sectional view showing the structure of the edge base material used in the present invention, and FIG. 3 is a sectional view showing the results of the weather resistance test of the present invention. FIG. 1... diaphragm body, 2... edge material,
3... Urethane foam, 4... Urethane coating.
Claims (1)
ームの片面又は両面に、ウレタンフォームと同材料の被
膜をウレタンフォームの表面を熱で溶かしてラミネート
して構成したエッジ材を、加熱プレスにて成形して振動
板本体の外周部に結合したスピーカ用振動板。An edge material is made by laminating a film of the same material as the urethane foam on one or both sides of a polyester or polyether flexible urethane foam by melting the surface of the urethane foam with heat, and forming it with a hot press and applying vibration. A speaker diaphragm connected to the outer periphery of the plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01313595A JP3119855B2 (en) | 1989-12-01 | 1989-12-01 | Speaker diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP01313595A JP3119855B2 (en) | 1989-12-01 | 1989-12-01 | Speaker diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03173299A true JPH03173299A (en) | 1991-07-26 |
| JP3119855B2 JP3119855B2 (en) | 2000-12-25 |
Family
ID=18043209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP01313595A Expired - Fee Related JP3119855B2 (en) | 1989-12-01 | 1989-12-01 | Speaker diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3119855B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8315420B2 (en) | 2007-02-28 | 2012-11-20 | Bose Corporation | Spider |
| WO2020075379A1 (en) * | 2018-10-11 | 2020-04-16 | ソニー株式会社 | Speaker edge, diaphragm unit, and method for manufacturing speaker edge |
-
1989
- 1989-12-01 JP JP01313595A patent/JP3119855B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8315420B2 (en) | 2007-02-28 | 2012-11-20 | Bose Corporation | Spider |
| WO2020075379A1 (en) * | 2018-10-11 | 2020-04-16 | ソニー株式会社 | Speaker edge, diaphragm unit, and method for manufacturing speaker edge |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3119855B2 (en) | 2000-12-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6426434A (en) | Fabric, through stretchability, multilayer type and waterproofness of which moisture is permeated | |
| CA2046889A1 (en) | Thermal mimeograph paper | |
| CN110677789A (en) | Composite vibration plate and loudspeaker using same | |
| JPH03173299A (en) | Diaphragm for speaker | |
| JPS62263798A (en) | Diaphragm for speaker | |
| JP2900417B2 (en) | Speaker diaphragm | |
| JP2734655B2 (en) | Speaker diaphragm | |
| JPH0246338Y2 (en) | ||
| JP3083257B2 (en) | Manufacturing method of interior materials | |
| JPH08307990A (en) | Dustproof cloth and its adhering method | |
| JPS5491316A (en) | Diaphragm for speaker | |
| US4394547A (en) | Laminated membrane switch | |
| JPS5819912Y2 (en) | Diaphragm for speakers | |
| JPS58124644A (en) | Manufacture of thrust board decorative sheet | |
| JPS5955698A (en) | Production of edge for diaphragm of speaker | |
| JPS6132978Y2 (en) | ||
| JP3140889B2 (en) | Edge material for speaker | |
| JPS6011520B2 (en) | speaker diaphragm | |
| JPS59135000A (en) | Composite diaphragm for speaker | |
| JPS5925518B2 (en) | Diaphragm for speaker | |
| JPH0239160B2 (en) | ||
| JPH061809Y2 (en) | Corrugated cardboard laminate | |
| JPH03150000A (en) | Manufacture of diaphragm | |
| JPH0530591A (en) | Speaker having plane diaphragm | |
| JPS59125198A (en) | Cabinet device of acoustic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |