JPH0151239B2 - - Google Patents
Info
- Publication number
- JPH0151239B2 JPH0151239B2 JP10784181A JP10784181A JPH0151239B2 JP H0151239 B2 JPH0151239 B2 JP H0151239B2 JP 10784181 A JP10784181 A JP 10784181A JP 10784181 A JP10784181 A JP 10784181A JP H0151239 B2 JPH0151239 B2 JP H0151239B2
- Authority
- JP
- Japan
- Prior art keywords
- polyurethane resin
- resin film
- diaphragm
- base material
- metal layer
- 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
Links
- 239000000463 material Substances 0.000 claims description 34
- 229920005749 polyurethane resin Polymers 0.000 claims description 29
- 239000004744 fabric Substances 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 17
- 229910052751 metal Inorganic materials 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 239000012790 adhesive layer Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 238000001035 drying Methods 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 229910052790 beryllium Inorganic materials 0.000 description 4
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000001771 vacuum deposition Methods 0.000 description 3
- 238000007740 vapor deposition Methods 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000005011 phenolic resin Substances 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- 238000009941 weaving Methods 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000007733 ion plating Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/06—Plane diaphragms comprising a plurality of sections or layers
- H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Description
本発明はスピーカー用振動板の製造方法に関す
る。
従来、柔軟な布よりなる基材をドーム状に成形
してあるスピーカー用振動板の製造方法は、第１
図に示すように、基材１をフエノール樹脂溶液２
の中に浸漬して基材１に含浸させ、ローラ３によ
つて余分な樹脂を絞つた後、乾燥機４によつてフ
エノール樹脂含浸基材５を乾燥させる。その後、
基材５にソフト気密性保持用樹脂溶液たとえばア
クリル酸エステルエマルジヨン溶液６をナイフコ
ーター７によつてコーテイングし、乾燥機８によ
つて乾燥させた後、成形用金型（図示せず）によ
つて加熱加圧してドーム状に成形するとともにソ
フト気密性を付与させて、スピーカー用振動板を
得る方法である。
しかしながら、このような製造方法は、目の荒
い基材を使用した場合、ソフト気密性保持用樹脂
溶液をコーテイングする際にこの樹脂溶液が基材
の布目に浸透して裏面に流れ出るので、ボイスコ
イルボビンとの接着が不充分になる。このため、
基材として目のつまつた厚手の布を使用しなけれ
ばならず、また、ソフト気密性保持用樹脂溶液が
基材の表面および布目間に浸透して気密性が付与
されるので、樹脂溶液のコーテイング量が多くな
り、したがつて、振動板重量が重たくなり音響放
射能率が低い欠点がある。また、コーテイングの
際にコーテイングムラを生じやすく、振動板の柔
軟な弾性が不均一になりやすく、分割振動域にお
ける分割共振や異常振動によつて特に高調波歪み
が多くなる等の欠点がある。
本発明はこのような従来欠点を改良したもの
で、以下図において説明する。
製造方法〔〕
第２図において説明する。
ロール巻きした離型紙９を順次送り出しながら
その表面にポリウレタン樹脂溶液１０（たとえば
東洋ポリマー(株)製のハイラツク3090（商品名））を
塗布し、ドクター１１によつて均一に均した後、
赤外乾燥機１２によつて乾燥して、離型紙９の表
面に厚さ20〜30ミクロンのポリウレタン樹脂フイ
ルム１３を形成した。この乾燥工程における条件
は、120℃、１〜1.5分間であつた。
次いで、このポリウレタン樹脂フイルム１３の
表面にポリウレタン系接着剤１４（たとえば、東
洋ポリマー(株)製のハイラツクAD（商品名））を塗
布し、ドクター１５によつて均一に均して厚さ約
５〜15ミクロンの接着剤の層１６を形成した。
その後、ロール巻きした基布１７を順次送り出
しながら、この基布１７と上記ポリウレタン樹脂
フイルム１３を両者間に接着剤の層１６を介在せ
しめてローラー１８によつて圧着せしめ、赤外乾
燥機１９によつて乾燥して両者を完全に接着して
振動板基材２０を形成した後、この振動板基材２
０を離型紙９から剥離した。この乾燥工程におけ
る条件は、120。℃、１〜1.5分間であつた。
基布１７としては、軽量化を目的として薄くて
目の荒い、かつ、それ自体が成形性をもつ織布、
たとえば東レ(株)製の「紗No.733」を使用した。こ
れは、30デニールのポリエステル単繊維を６本撚
りして１本の糸とし、この糸を平織り（１インチ
当り縦100本、横89本）したもので、厚さは0.1
mm、重さは31ｇ／m2である。
したがつて、この基布１７の表面にポリウレタ
ン樹脂フイルム１３をラミネートした振動板基材
２０は厚さ0.12〜0.13mm、重さ80ｇ／m2となつ
た。
次いで、この振動板基材２０のポリウレタン樹
脂フイルム１３の表面にボロン(B)、ベリリウム
（Be）、チタン（Ti）、アルミニウム（Al）等の
軽量、高剛性の金属層２１を形成する。
金属層２１は従来公知の、たとえば真空蒸着法
によつて形成され、第２図に示すように、真空度
を10-4〜10- 6mmHgに保つた蒸着槽２２内にフイ
ラメント２３の表面に蒸着物質（アルミニウム）
２４を添着した蒸発源２５を設置した真空蒸着装
置において、ロール巻きした振動板基材２０をそ
のポリウレタン樹脂フイルム１３面を蒸発源２５
に対向させて配置し、上記フイラメント２３に電
流を通じ加熱させて蒸着物質２４を蒸発させると
ともに、振動板基材２０を徐々に移動させて、そ
の表面に１ミクロンのアルミニウム蒸着層２１を
形成した。
そして、この振動板基材２０を成型用金型によ
つて170℃、20〜30秒の条件の下に加熱加圧して
ドーム状に成形して、第４図に示すようなドーム
形スピーカー用振動板を得た。
製造方法〔〕
第３図において説明する。
ロール巻きした離型紙９を順次送り出しながら
その表面にポリウレタン樹脂溶液１０（たとえば
東洋ポリマー(株)製のハイラツク3090（商品名））を
塗布し、ドクター１１によつて均一に均した後、
赤外乾燥機１２によつて乾燥して、離型紙９の表
面に厚さ20〜30ミクロンのポリウレタン樹脂フイ
ルム１３を形成した。この乾燥工程における条件
は、120℃、１〜1.5分間であつた。
次いで、このポリウレタン樹脂フイルム１３の
表面にボロン(B)、ベリリウム（Bi）、チタン
（Ti）、アルミニウム（Al）等の軽量、高剛性の
金属層２１を形成する。
金属層２１は従来公知の、たとえば真空蒸着法
によつて形成され、第３図に示すように、真空度
を10-4〜10-6mmHgに保つた蒸着槽２２内にフイ
ラメント２３の表面に蒸着物質（アルミニウム）
２４を添着した蒸発源２５を設置した真空蒸着装
置において、ロール巻きした離型紙９をそのポリ
ウレタン樹脂フイルム１３面を蒸発源２５に対向
させて配置し、上記フイラメント２３に電流を通
じ加熱させて蒸着物質２４を蒸発させるととも
に、離型紙９を徐々に移動させて、その表面に１
ミクロンのアルミニウム蒸着層２１を形成した。
次いで、このポリウレタン樹脂フイルム１３の
金属層２１と反対側の面にポリウレタン系接着剤
１４（たとえば、東洋ポリマー(株)製のハイラツク
AD（商品名））を塗布し、ドクター１５によつて
均一に均して厚さ約５〜15ミクロンの接着剤の層
１６を形成した。
その後、ロール巻きした基布１７を順次送り出
しながら、この基布１７と上記ポリウレタン樹脂
フイルム１３を両者間に接着剤の層１６を介在せ
しめてローラー１８によつて圧着せしめ、赤外乾
燥機１９によつて乾燥して両者を完全に接着して
振動板基材２０を形成した。この乾燥工程におけ
る条件は、120℃、１〜1.5分間であつた。
基布１７としては、軽量化を目的として薄くて
目の荒い、かつ、それ自体が成形性をもつ織布、
たとえば東レ(株)製の「紗No.733」を使用した。こ
れは、30デニールのポリエステル単繊維を６本撚
りして１本の糸とし、この糸を平織り（１インチ
当り縦100本、横89本）したもので、厚さは0.1
mm、重さは31ｇ／m2である。
したがつて、この基布１７の表面にポリウレタ
ン樹脂フイルム１３をラミネートした振動板基材
２０は厚さ0.12〜0.13mm、重さ80ｇ／m2となつ
た。
そして、この振動板基剤２０を成型用金型によ
つて170℃、20〜30秒の条件の下に加熱加圧して
ドーム状に成形して、第４図に示すようなドーム
形スピーカー用振動板を得た。
以上の説明で明らかなように、本発明は、従来
の基材の表面にソフト気密性保持用樹脂溶液をコ
ーテイングする方式と異なり、基布１７にポリウ
レタン樹脂フイルム１３をラミネートして振動板
基材２０を形成する方式であるので、特に(1)ポリ
ウレタン樹脂フイルム１３が基布１７の布目に浸
透することがないので、薄くて目の荒い軽量の基
布１７を使用することができ、また、薄いポリウ
レタン樹脂フイルム１３によつて完全な気密性が
付与されるので、振動板重量が軽量化でき音響放
射率が向上する、(2)振動板に均一なソフト気密性
が付与されるので、従来のような柔軟な弾性の不
均一性に起因する分割共振や異常振動等の姿態の
乱れがなく、特に高調波歪みが低減される、(3)ポ
リウレタン樹脂フイルム１３の厚さを容易にコン
トロールできるので、振動板としての柔軟性、弾
性を容易にコントロールできる、等の優れた利点
を有する。
また、振動板基材２０の表面にボロン、ベリリ
ウム、チタン、アルミニウム等の軽量、高剛性の
金属からなる金属層２１を形成した構造を有し、
柔軟な振動板基材２０であるにもかかわらず、金
属層２１によつて金属単体からなる高剛性振動板
と柔軟な振動板との間の中間的な剛性が付与され
るので、振動板基材２０の保有する適度の振動ロ
スと相まつて分割振動域での波打ち現象、ローリ
ングが抑圧され、理想的な振動動姿態が得られる
利点を有する。
参考のために、ボロン、ベリリウム、チタン、
アルミウムの密度および弾性率を下表に示す。
The present invention relates to a method of manufacturing a diaphragm for a speaker. Conventionally, the first method of manufacturing a speaker diaphragm, in which a base material made of flexible cloth is formed into a dome shape, is
As shown in the figure, the base material 1 is mixed with the phenolic resin solution 2.
The phenol resin-impregnated base material 5 is immersed in the phenol resin and impregnated into the base material 1, and after squeezing out excess resin with the roller 3, the phenol resin-impregnated base material 5 is dried with the dryer 4. after that,
The base material 5 is coated with a soft airtightness maintaining resin solution, such as an acrylic acid ester emulsion solution 6, using a knife coater 7, dried using a dryer 8, and then placed in a mold for molding (not shown). This is a method to obtain a speaker diaphragm by heating and pressurizing it to form it into a dome shape and imparting soft airtightness. However, when such a manufacturing method is used, when a coarse base material is used, the resin solution permeates the fabric of the base material and flows out to the back surface when coating with the soft airtightness maintaining resin solution. The adhesion becomes insufficient. For this reason,
A thick cloth with a tight weave must be used as the base material, and the resin solution for maintaining soft airtightness penetrates the surface of the base material and between the grains of the cloth to provide airtightness. This increases the amount of coating, which increases the weight of the diaphragm and has the drawback of low acoustic radiation efficiency. Further, there are disadvantages such as uneven coating tends to occur during coating, the flexible elasticity of the diaphragm tends to become non-uniform, and harmonic distortion in particular increases due to divided resonance or abnormal vibration in the divided vibration region. The present invention improves on these conventional drawbacks, and will be explained below with reference to the drawings. Manufacturing method [] This will be explained with reference to FIG. A polyurethane resin solution 10 (for example, Hiraku 3090 (trade name) manufactured by Toyo Polymer Co., Ltd.) is applied to the surface of the rolled release paper 9 while being sent out one after another, and after leveling it uniformly with a doctor 11,
It was dried using an infrared dryer 12 to form a polyurethane resin film 13 with a thickness of 20 to 30 microns on the surface of the release paper 9. The conditions for this drying step were 120° C. and 1 to 1.5 minutes. Next, a polyurethane adhesive 14 (for example, Hiraku AD (trade name) manufactured by Toyo Polymer Co., Ltd.) is applied to the surface of this polyurethane resin film 13, and is evenly leveled with a doctor 15 to a thickness of approximately 5. A layer 16 of adhesive of ~15 microns was formed. Thereafter, while the rolled base fabric 17 is sent out one after another, the base fabric 17 and the polyurethane resin film 13 are pressed together by a roller 18 with an adhesive layer 16 interposed between them, and then placed in an infrared dryer 19. After drying and completely adhering the two to form the diaphragm base material 20, this diaphragm base material 2
0 was peeled off from the release paper 9. The conditions for this drying process are 120. ℃ for 1 to 1.5 minutes. The base fabric 17 is a thin, coarse woven fabric that is moldable in itself for the purpose of weight reduction.
For example, "Gain No. 733" manufactured by Toray Industries, Inc. was used. This is made by twisting six 30-denier polyester single fibers into one thread, and plain weaving this thread (100 threads per inch by 89 threads per inch), and the thickness is 0.1
mm, and the weight is 31 g/m 2 . Therefore, the diaphragm base material 20 in which the polyurethane resin film 13 was laminated on the surface of the base fabric 17 had a thickness of 0.12 to 0.13 mm and a weight of 80 g/m 2 . Next, a lightweight, highly rigid metal layer 21 made of boron (B), beryllium (Be), titanium (Ti), aluminum (Al), etc. is formed on the surface of the polyurethane resin film 13 of this diaphragm base material 20. The metal layer 21 is formed by a conventionally known method, for example, a vacuum evaporation method , and as shown in FIG. Vapor deposition material (aluminum)
In a vacuum evaporation apparatus equipped with an evaporation source 25 attached with a polyurethane resin film 24, the diaphragm base material 20 is rolled and its polyurethane resin film 13 side is attached to the evaporation source 25.
The filament 23 was heated by passing an electric current through it to evaporate the deposited substance 24, and the diaphragm base material 20 was gradually moved to form a 1 micron aluminum deposited layer 21 on its surface. Then, this diaphragm base material 20 is heated and pressurized using a molding mold at 170°C for 20 to 30 seconds to form a dome shape, thereby forming a dome-shaped speaker as shown in FIG. I got a diaphragm. Manufacturing method [] This will be explained with reference to FIG. A polyurethane resin solution 10 (for example, Hiraku 3090 (trade name) manufactured by Toyo Polymer Co., Ltd.) is applied to the surface of the rolled release paper 9 while being sent out one after another, and after leveling it uniformly with a doctor 11,
It was dried using an infrared dryer 12 to form a polyurethane resin film 13 with a thickness of 20 to 30 microns on the surface of the release paper 9. The conditions for this drying step were 120° C. and 1 to 1.5 minutes. Next, a lightweight, highly rigid metal layer 21 made of boron (B), beryllium (Bi), titanium (Ti), aluminum (Al), etc. is formed on the surface of this polyurethane resin film 13. The metal layer 21 is formed by a conventionally known method, for example, a vacuum evaporation method , and as shown in FIG. Vapor deposition material (aluminum)
In a vacuum evaporation apparatus equipped with an evaporation source 25 attached with 24, a roll of release paper 9 is placed with its polyurethane resin film 13 facing the evaporation source 25, and the filament 23 is heated by passing an electric current through it to remove the evaporation material. 24 is evaporated, the release paper 9 is gradually moved, and the surface of the release paper 9 is evaporated.
A micron aluminum vapor deposition layer 21 was formed. Next, a polyurethane adhesive 14 (for example, HILAK manufactured by Toyo Polymer Co., Ltd.) is applied to the surface of the polyurethane resin film 13 opposite to the metal layer 21.
AD (trade name)) was applied and evenly leveled with a doctor 15 to form an adhesive layer 16 with a thickness of about 5 to 15 microns. Thereafter, while the rolled base fabric 17 is sent out one after another, this base fabric 17 and the polyurethane resin film 13 are pressed together by a roller 18 with an adhesive layer 16 interposed between them, and then placed in an infrared dryer 19. After drying, the two were completely adhered to form the diaphragm base material 20. The conditions for this drying step were 120° C. and 1 to 1.5 minutes. The base fabric 17 is a thin, coarse woven fabric that is moldable in itself for the purpose of weight reduction.
For example, "Gain No. 733" manufactured by Toray Industries, Inc. was used. This is made by twisting six 30-denier polyester single fibers into one thread, and plain weaving this thread (100 threads per inch by 89 threads per inch), and the thickness is 0.1
mm, and the weight is 31 g/m 2 . Therefore, the diaphragm base material 20 in which the polyurethane resin film 13 was laminated on the surface of the base fabric 17 had a thickness of 0.12 to 0.13 mm and a weight of 80 g/m 2 . Then, this diaphragm base material 20 is heated and pressurized in a molding mold at 170°C for 20 to 30 seconds to form a dome shape to form a dome-shaped speaker as shown in Fig. 4. I got a diaphragm. As is clear from the above description, unlike the conventional method of coating the surface of a base material with a soft airtightness maintaining resin solution, the present invention laminates a polyurethane resin film 13 on a base fabric 17 to form a diaphragm base material. 20, in particular (1) the polyurethane resin film 13 does not penetrate into the grains of the base fabric 17, so a thin, coarse and lightweight base fabric 17 can be used; Complete airtightness is provided by the thin polyurethane resin film 13, which reduces the weight of the diaphragm and improves the acoustic emissivity. (3) The thickness of the polyurethane resin film 13 can be easily controlled. Therefore, it has excellent advantages such as flexibility and elasticity of the diaphragm can be easily controlled. Further, it has a structure in which a metal layer 21 made of a lightweight and highly rigid metal such as boron, beryllium, titanium, aluminum, etc. is formed on the surface of the diaphragm base material 20,
Although the diaphragm base material 20 is flexible, the metal layer 21 provides intermediate rigidity between a high-rigidity diaphragm made of a single metal and a flexible diaphragm. Coupled with the moderate vibration loss possessed by the material 20, the waving phenomenon and rolling in the divided vibration range are suppressed, and an ideal vibration dynamic state can be obtained. For reference, boron, beryllium, titanium,
The density and elastic modulus of aluminum are shown in the table below.
【表】
また、上記実施例においては、金属層の形成方
法として真空蒸着法が用いられているが、イオン
プレーテイング、スパツタリング法その他の方法
でもよく、かかるその他の方法を用いる場合は厚
さ10ミクロン以上の金属層の形成が可能である。
以上のように、本発明は、基布１７にポリウレ
タン樹脂フイルム１３をラミネートした振動板基
材２０の表面に金属層２１を形成する方式である
ので、特に、均一なソフト気密性が付与され、振
動板重量の軽量化と相まつて適度の剛性が付与さ
れて、理想的なスピーカー用振動板が得られる利
点を有する。[Table] Furthermore, in the above embodiments, a vacuum evaporation method is used as a method for forming the metal layer, but ion plating, sputtering, and other methods may also be used. It is possible to form a metal layer of micron size or larger. As described above, the present invention is a method in which the metal layer 21 is formed on the surface of the diaphragm base material 20 in which the polyurethane resin film 13 is laminated to the base fabric 17, so that uniform soft airtightness is particularly imparted. This has the advantage of reducing the weight of the diaphragm and imparting appropriate rigidity, making it possible to obtain an ideal diaphragm for speakers.
第１図は従来のスピーカー用振動板の製造方法
を示す図、第２図乃至第４図は本発明のスピーカ
ー用振動板の製造方法を示す図である。
９は離型紙、１３はポリウレタン樹脂フイル
ム、１６は接着剤の層、１７は基布、２０は振動
板基材、２１は金属層である。
FIG. 1 is a diagram showing a conventional method for manufacturing a diaphragm for a speaker, and FIGS. 2 to 4 are diagrams showing a method for manufacturing a diaphragm for a speaker according to the present invention. 9 is a release paper, 13 is a polyurethane resin film, 16 is an adhesive layer, 17 is a base fabric, 20 is a diaphragm base material, and 21 is a metal layer.
Claims (1)
板の製造方法。 (イ) 離型紙９の表面にポリウレタン樹脂フイルム
１３を形成する工程。 (ロ) 当該ポリウレタン樹脂フイルム１３の表面に
接着剤の層１６を形成する工程。 (ハ) 当該ポリウレタン樹脂フイルム１３と基布１
７とを両者間に上記接着剤の層１６を介在せし
めて接着して振動板基材２０を形成する工程。 (ニ) 上記ポリウレタン樹脂フイルム１３の表面に
金属層２１を形成する工程。 (ホ) 当該振動板基材２０を加熱加圧してドーム状
に成形する工程。 ２ 次の各工程(イ)〜(ホ)からなるスピーカー用振動
板の製造方法。 (イ) 離型紙９の表面にポリウレタン樹脂フイルム
１３を形成する工程。 (ロ) 当該ポリウレタン樹脂フイルム１３の表面に
金属層２１を形成する工程。 (ハ) 当該ポリウレタン樹脂フイルム１３を上記離
型紙９から剥離し、上記金属層２１と反対側の
面に接着剤の層１６を形成する工程。 (ニ) 当該ポリウレタン樹脂フイルム１３と基布１
７とを両者間に上記接着剤の層１６を介在せし
めて接着して振動板基材２０を形成する工程。 (ホ) 当該振動板基材２０を加熱加圧してドーム状
に成形する工程。[Scope of Claims] 1. A method for manufacturing a speaker diaphragm comprising the following steps (a) to (e). (a) A step of forming a polyurethane resin film 13 on the surface of the release paper 9. (b) A step of forming an adhesive layer 16 on the surface of the polyurethane resin film 13. (c) The polyurethane resin film 13 and the base fabric 1
7 with the adhesive layer 16 interposed between them to form the diaphragm base material 20. (d) A step of forming a metal layer 21 on the surface of the polyurethane resin film 13. (E) A step of heating and pressurizing the diaphragm base material 20 to form it into a dome shape. 2. A method for manufacturing a speaker diaphragm comprising the following steps (a) to (e). (a) A step of forming a polyurethane resin film 13 on the surface of the release paper 9. (b) A step of forming a metal layer 21 on the surface of the polyurethane resin film 13. (c) A step of peeling off the polyurethane resin film 13 from the release paper 9 and forming an adhesive layer 16 on the surface opposite to the metal layer 21. (d) The polyurethane resin film 13 and the base fabric 1
7 with the adhesive layer 16 interposed between them to form the diaphragm base material 20. (E) A step of heating and pressurizing the diaphragm base material 20 to form it into a dome shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10784181A JPS589500A (en) | 1981-07-09 | 1981-07-09 | Production of speaker diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10784181A JPS589500A (en) | 1981-07-09 | 1981-07-09 | Production of speaker diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS589500A JPS589500A (en) | 1983-01-19 |
| JPH0151239B2 true JPH0151239B2 (en) | 1989-11-02 |
Family
ID=14469404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10784181A Granted JPS589500A (en) | 1981-07-09 | 1981-07-09 | Production of speaker diaphragm |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS589500A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4059265B2 (en) | 2005-06-08 | 2008-03-12 | オンキヨー株式会社 | Speaker member and manufacturing method thereof |
| JP6759415B1 (en) * | 2019-05-23 | 2020-09-23 | 大日精化工業株式会社 | Polyurethane resin and articles |
-
1981
- 1981-07-09 JP JP10784181A patent/JPS589500A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS589500A (en) | 1983-01-19 |
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