JP2671140B2 - Speaker damper and its manufacturing method - Google Patents
Speaker damper and its manufacturing methodInfo
- Publication number
- JP2671140B2 JP2671140B2 JP63286679A JP28667988A JP2671140B2 JP 2671140 B2 JP2671140 B2 JP 2671140B2 JP 63286679 A JP63286679 A JP 63286679A JP 28667988 A JP28667988 A JP 28667988A JP 2671140 B2 JP2671140 B2 JP 2671140B2
- Authority
- JP
- Japan
- Prior art keywords
- damper
- conductive member
- corrugation
- speaker
- inner peripheral
- 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
Landscapes
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、ボイスコイルへの音声信号入力用の導電
部材を備えたスピーカ用ダンパーとその製造法に関する
ものである。Description: TECHNICAL FIELD The present invention relates to a damper for a speaker provided with a conductive member for inputting a voice signal to a voice coil, and a method for manufacturing the same.
［従来の技術］ 従来よりボイスコイルへの配線構造を簡略化するため
に、第９図乃至第12図に示すように、織布又は不織布等
の布材からなるダンパー素材にフェノール樹脂等の熱硬
化性樹脂を含浸させると共に熱成型加工により波形のコ
ルゲーション22を一体形成してなるダンパー本体21と、
このコルゲーション22の形状に沿わしめて内周部21aか
ら外周部21b方向に装着された２枚の導電部材23とから
なるスピーカ用ダンパーが提案されている。[Prior Art] Conventionally, in order to simplify the wiring structure to the voice coil, as shown in FIGS. 9 to 12, a damper material made of a cloth material such as a woven cloth or a non-woven cloth is heated with a phenol resin or the like. A damper main body 21 integrally formed with a corrugated corrugation 22 by thermoforming while impregnating a curable resin,
There has been proposed a speaker damper including two conductive members 23 mounted along the shape of the corrugation 22 from the inner peripheral portion 21a to the outer peripheral portion 21b.
その製造方法及び製造金型としては、 第14図（Ａ）に示すように、織布又は不織布等の上
記布材からなるダンパー素材20に導電部材23を接着剤Ｓ
で接着したのち、溶剤にて希釈したフェノール樹脂等の
熱硬化性樹脂24を収容した処理槽30内を通過させること
によりこの熱硬化性樹脂24を含浸させ、上記溶剤を揮発
させて樹脂タック性を取り除いた状態とし、成形金型で
熱成型加工する方法 第14図（Ｂ）に示すように、上記布材からなるダン
パー素材20に溶剤にて希釈した熱硬化性樹脂24を含浸さ
せ、この溶剤を揮発させて樹脂タック性を取り除いた状
態で導電部材23を接着したのち、熱成型加工する方法 第14図（Ｂ）と同様に布材からなるダンパー素材20
に溶剤にて希釈した熱硬化性樹脂24を含浸させ、この溶
剤を揮発させて樹脂タック性を取り除いた状態で熱成形
加工して第14図（Ｃ）に示すようなダンパー本体21を
得、コルゲーション22の表面又は裏面に銅箔又は錦糸線
からなる導電部材23を接着する方法 等がある。As shown in FIG. 14 (A), as a manufacturing method and a manufacturing die thereof, a conductive material 23 is attached to a damper material 20 made of the above cloth material such as woven cloth or non-woven cloth with an adhesive S.
After adhering with, the thermosetting resin 24 is impregnated by passing through the treatment tank 30 containing the thermosetting resin 24 such as phenol resin diluted with a solvent, and the solvent is volatilized to make the resin tacky. Method of thermoforming with a molding die with the above removed, as shown in FIG. 14 (B), the damper material 20 made of the cloth material is impregnated with the thermosetting resin 24 diluted with a solvent, and A method in which the conductive member 23 is adhered in a state where the resin tackiness is removed by volatilizing the solvent, and then thermoforming is performed. A damper material 20 made of a cloth material as in FIG. 14 (B).
Is impregnated with a thermosetting resin 24 diluted with a solvent, and the damper main body 21 as shown in FIG. 14 (C) is obtained by subjecting the solvent to volatilization and thermoforming with the resin tackiness removed. There is a method of bonding a conductive member 23 made of copper foil or tinsel wire to the front surface or the back surface of the corrugation 22.
第15図（Ａ）〜（Ｄ）は上記のようなダンパーを成形
するための金型の断面図であり、（Ａ），（Ｂ）はダン
パー本体21の成形過程を示す断面図、（Ｃ），（Ｄ）は
導電部材23の装着過程を示す断面図である。また、第13
図は上記のようにして構成されたスピーカ用ダンパーの
断面図であり、コルゲーション22の幅Ｗ及び深さＤは内
周部21aから外周部21bに至るまで同一形状に形成されて
いる。FIGS. 15A to 15D are sectional views of a mold for molding the damper as described above, FIGS. 15A and 15B are sectional views showing a molding process of the damper main body 21, and FIG. ), (D) are cross-sectional views showing a mounting process of the conductive member 23. Also, the thirteenth
The figure is a cross-sectional view of the speaker damper configured as described above, and the width W and depth D of the corrugation 22 are formed in the same shape from the inner peripheral portion 21a to the outer peripheral portion 21b.
上記したダンパー素材20は第15図（Ａ），（Ｂ）に示
すように上記コルゲーション22に対応する多数の凹凸部
33,34を環状に形成した上下の金型31,32で加熱プレス成
形されるが、周知の如く、成形時には材料、即ち、ダン
パー素材20が外周部20aから内周部20b側に引き込まれな
がら成形される。従って、コルゲーション22の形状と
数、特に幅Ｗ及び深さＤは成形時における材料の破損、
成形後の反り、変形等が発生しない範囲内で設定され
る。As shown in FIGS. 15 (A) and 15 (B), the damper material 20 described above has a large number of uneven portions corresponding to the corrugations 22.
The upper and lower molds 31 and 32 formed in an annular shape with 33 and 34 are heat press molded, but as is well known, the material, that is, the damper material 20 is drawn from the outer peripheral portion 20a to the inner peripheral portion 20b side during molding. Molded. Therefore, the shape and number of corrugations 22, especially width W and depth D, are
It is set within a range that does not cause warpage or deformation after molding.
ダンパー本体21に導電部材23を装着する手段として、
上記の方法においては、第15図（Ａ）及び（Ｂ）に示
すように、ダンパー素材20を加熱された金型31,32でプ
レス成形することによりダンパー本体21を得、第15図
（Ｃ）及び（Ｄ）に示すように導電部材23をコルゲーシ
ョン22の形状に成形しつつ貼り合せる。また、上記及
びの方法においてはダンパー素材20に導電部材23を装
着した状態で上記加熱された金型31,32によりプレス成
形される。As a means for mounting the conductive member 23 on the damper body 21,
In the above method, as shown in FIGS. 15 (A) and 15 (B), the damper material 20 is press-molded by the heated dies 31, 32 to obtain the damper main body 21, and FIG. ) And (D), the conductive member 23 is formed into the shape of the corrugation 22 and bonded together. Further, in the above methods and, the damper material 20 is press-molded by the heated molds 31 and 32 with the conductive member 23 attached.
［発明が解決しようとする課題］ 従来より提案されている上記したスピーカ用ダンパー
にあってはダンパー本体21に導電部材23をいずれも接着
して装着するものであるため、大振幅を長時間続けると
導電部材23がコルゲーション22から剥離し、該剥離部が
ダンパーやコーン振動板の裏面に当って異音を発した
り、導電部材23が剥離したままの状態で適切な形状を保
たずに異常共振を続けると断線する欠点があり、我々も
各種の実験を行ったが、実際の製品化には不向きである
ことが判明した。[Problems to be Solved by the Invention] In the above-described speaker dampers that have been conventionally proposed, since the conductive member 23 is attached to the damper main body 21 by bonding, a large amplitude continues for a long time. And the conductive member 23 peels from the corrugation 22, the peeling portion makes a noise by hitting the back surface of the damper or the cone diaphragm, or the conductive member 23 is peeled and abnormal without maintaining an appropriate shape. There is a drawback that the wire breaks when the resonance continues, and we also conducted various experiments, but we found that it was unsuitable for actual commercialization.
また、上記〜で説明した従来のスピーカ用ダンパ
ーの製造法においては量産性において次のような欠点が
ある。In addition, the conventional method for manufacturing the speaker damper described above has the following drawbacks in mass productivity.
のようなダンパー素材20に導電部材23を装着した後
に熱硬化性樹脂を含浸させる手法では、熱硬化性樹脂24
が導電部材23に付着したまま熱成形されるため導電部材
23に付着した熱硬化性樹脂24が硬化し、これがリード線
接続のためには不適な絶縁材となってしまい、リード線
接続時には硬化した熱硬化性樹脂24を除去しなければな
らない、等工数が増加し、また、導電部材23にマスキン
グ処理をしたり導電部材23に付着した熱硬化性樹脂24が
硬化しない間にこれを除去する等の作業をすると上記し
たと同様に工数増加を招き、結果としてコストアップと
なる。In the technique of impregnating the thermosetting resin after mounting the conductive member 23 on the damper material 20 as described above, the thermosetting resin 24
Is thermoformed while attached to the conductive member 23.
The thermosetting resin 24 adhered to 23 is hardened, and this becomes an insulating material unsuitable for connecting lead wires, and the hardened thermosetting resin 24 must be removed when connecting lead wires. Increases, and if the work such as masking the conductive member 23 or removing the thermosetting resin 24 attached to the conductive member 23 while the conductive member 23 is not cured causes an increase in man-hours as described above. As a result, the cost increases.
更に、使用する接着剤Ｓの材質検討及び接着剤塗布方
法等が複雑になり、例えば、一般的なゴム系接着剤では
所定の接着強度が出るまで時間がかかり、アクリル系等
の反応タイプのものでは硬度が出すぎてコルゲーション
22を成形できない等、接着剤Ｓの選定範囲が大幅に制限
される。Further, the material examination of the adhesive S to be used and the method of applying the adhesive become complicated. For example, it takes time until a predetermined adhesive strength is obtained with a general rubber adhesive, and a reaction type such as an acrylic adhesive is used. So too hard, corrugation
22 cannot be molded, and the selection range of the adhesive S is significantly limited.
のようにダンパー素材20に熱硬化性樹脂を含浸させ
たのち溶剤を揮発させ、樹脂タック性を取り除いた状態
で導電部材23を接着する形式では上記のような熱硬化
性樹脂24が導電部材23に付着することに起因する欠点は
ないが、接着剤Ｓを使用する点ではと同様に、接着剤
Ｓの材質検討、接着剤塗布方法の複雑性等の欠点があ
る。As described above, when the damper material 20 is impregnated with a thermosetting resin, the solvent is volatilized, and the conductive member 23 is adhered in a state where the resin tack property is removed, the thermosetting resin 24 as described above is used as the conductive member 23. Although there is no defect due to the adhesion to the adhesive, there are drawbacks such as examination of the material of the adhesive S and complexity of the adhesive application method as in the case of using the adhesive S.
のようにダンパー本体成形後に導電部材23を接着す
る形式では上記のような欠点はないが、コルゲーシ
ョン22に沿って導電部材23を接着する必要があり、コル
ゲーション22に沿って接着材を均一に塗布する方法が複
雑になる等の欠点がある。Although the conductive member 23 is adhered after the damper body is molded as described above, the above-mentioned drawbacks do not exist, but the conductive member 23 needs to be adhered along the corrugation 22, and the adhesive is evenly applied along the corrugation 22. There is a drawback in that the method of doing it becomes complicated.
また、導電部材23をコルゲーション22に沿った状態で
装着する場合、従来のスピーカ用ダンパーにおいてはコ
ルゲーション22の幅Ｗ及び深さＤが内周部21aから外周
部21bに至るまで同一形状に形成されているため次のよ
うな欠点がある。When the conductive member 23 is mounted along the corrugation 22, the width W and the depth D of the corrugation 22 are formed in the same shape in the conventional speaker damper from the inner peripheral portion 21a to the outer peripheral portion 21b. Therefore, it has the following drawbacks.
即ち、一般的に導電部材23として使用される銅箔や錦
糸線等はその変形率が織布、不織布等の布材よりも低い
ため、成形時に導電部材23にクラックが発生する欠点を
有している。特に導電部材23たる材料を引き込む力が多
く作用する内周部側の第一凹部331、及び第一凸部341近
傍でクラックが発生し易い。その理由は、導電部材23の
外周部23b側は切断されて自由端となっており、材料が
移動し易くなっているが、内周部23a側は材料が繋って
いて、いわゆるソリッドの状態になっており、材料の移
動が極めてしにくい状態となっているからである。従っ
て、内周部23a側ほど材料を引き込む力が多くかかり、
この部分にクラックが多く発生する。That is, since the deformation rate of a copper foil, a tinsel wire, or the like generally used as the conductive member 23 is lower than that of a cloth material such as a woven fabric or a non-woven fabric, the conductive member 23 has a defect that cracks occur during molding. ing. In particular, cracks are likely to occur in the vicinity of the first concave portion 331 and the first convex portion 341 on the inner peripheral side where a large amount of force for drawing the material of the conductive member 23 acts. The reason is that the outer peripheral portion 23b side of the conductive member 23 is cut and becomes a free end, and the material is easily moved, but the inner peripheral portion 23a side is connected with the material, which is a so-called solid state. This is because it is extremely difficult to move the material. Therefore, the force of drawing the material is increased toward the inner peripheral portion 23a side,
Many cracks occur in this part.
このような状態を避けるために導電部材23の材料を、
第15図（Ｃ）に示すように中間部23cで二分して内周部2
3a側及び外周部23b側を共にフリーにする手法やクラッ
クが発生しない程度の導電部材を配置する手法も考えら
れるが、前者においては極めて多くの工数を要し、後者
においては成形後に導電部材23に内部応力が残り、変形
し易い欠点がある。In order to avoid such a state, the material of the conductive member 23,
As shown in FIG. 15 (C), the inner peripheral portion 2 is divided into two parts at the intermediate portion 23c.
A method of freeing both the 3a side and the outer peripheral portion 23b side and a method of arranging a conductive member to the extent that cracks do not occur are also conceivable, but the former requires an extremely large number of steps, and the latter requires a conductive member 23 after molding. However, there is a drawback that internal stress remains and it is easily deformed.
以上のように、従来からダンパーに導電材を装着した
導電部装着型ダンパーが種々の形態で提案されている
が、実際にはいずれの形態においても実施できず、製品
化されていないのが現状である。As described above, the conductive part mounting type damper in which the conductive material is mounted on the damper has been conventionally proposed in various forms, but in reality, it cannot be implemented in any of the forms and is not commercialized at present. Is.
我々は導電部装着型ダンパーを実現するために各種の
実験検討を繰り返した結果、導電材として優れた実績の
ある錦糸線を平網状に編組して平編錦糸線とし、これを
織布、不織布等からなるダンパー素材に繊維で縫着した
後に所定のダンパー形状に成形すれば所期の目的を達成
できることを見出した。As a result of repeated experiments and studies to realize a conductive part-mounted damper, we have braided a tinsel wire, which has an excellent track record as a conductive material, into a flat braided tinsel wire, which is woven or non-woven. It has been found that the intended purpose can be achieved by sewing a damper material made of, for example, etc. with fibers and then molding it into a predetermined damper shape.
従って、この発明の第１の目的は上記した従来のスピ
ーカ用ダンパーの欠点を解消し、ダンパー本体のコルゲ
ーションに沿って導電部材を確実に装着したスピーカ用
ダンパーを提供することにある。Therefore, a first object of the present invention is to solve the above-mentioned drawbacks of the conventional speaker damper and to provide a speaker damper in which a conductive member is securely attached along the corrugation of the damper body.
この発明の第２の目的は上記のようなスピーカ用ダン
パーを量産でき、コストダウンできると共に均一な製品
を得ることができる製造法を提供することにある。A second object of the present invention is to provide a manufacturing method capable of mass-producing the above speaker damper, reducing the cost, and obtaining a uniform product.
［課題を解決するための手段］ この発明に係る第１のスピーカ用ダンパーは、織布又
は不織布等の布材からなるダンパー素材にフェノール樹
脂その他の熱硬化性樹脂を含浸させると共に熱成型加工
により同芯円状の複数のコルゲーションを一体形成した
ダンパー本体と、上記コルゲーションの形状に沿わしめ
て内周部から外周部方向に装着した導電部材とからなる
スピーカ用ダンパーにおいて、平網錦糸線からなる導電
部材をダンパー本体に繊維で縫着したものである。[Means for Solving the Problems] A first speaker damper according to the present invention is obtained by impregnating a damper material made of a cloth material such as a woven cloth or a non-woven cloth with a phenol resin or other thermosetting resin and performing thermoforming. In a damper for a speaker, which comprises a damper main body integrally formed with a plurality of concentric corrugations and a conductive member mounted along the shape of the corrugation in the direction from the inner peripheral portion to the outer peripheral portion, a conductive wire made of a flat wire tinsel wire is used. The member is sewn to the damper body with fibers.
また、第２のスピーカ用ダンパーは、コルゲーション
の幅を外周部側のコルゲーションから内周部側のコルゲ
ーションに至るに従って順次広くしたものである。Further, the second speaker damper is such that the width of the corrugations is gradually increased from the corrugation on the outer peripheral side to the corrugation on the inner peripheral side.
この発明に係るスピーカ用ダンパーの製造方法として
は、上記した布材からなるダンパー素材に熱硬化性樹脂
を含浸させた後、これに、平網錦糸線からなる導電部材
を繊維で縫着し、この状態で金型装置で熱成型加工した
のち、所定のダンパー形状に打ち抜き加工する。As a method for manufacturing a speaker damper according to the present invention, after a thermosetting resin is impregnated into a damper material made of the above-mentioned cloth material, a conductive member made of a flat screen tinsel wire is sewn with a fiber, In this state, a thermoforming process is performed by a die device, and then a punching process is performed into a predetermined damper shape.
［作用］ 織布又は不織布等の布材からなるダンパー素材に溶剤
で希釈したフェノール樹脂その他の熱硬化性樹脂を含浸
させ、上記溶剤を揮発させて樹脂タック性を取り除いた
状態とした後、平編錦糸線からなる導電部材を繊維で縫
着したものを成形金型で熱成型加工して所定のコルゲー
ションを形成する。これを所定形状に打ち抜き加工して
スピーカ用ダンパーを得る。[Function] A damper material made of a cloth material such as woven cloth or non-woven cloth is impregnated with a phenol resin or other thermosetting resin diluted with a solvent, and the solvent is volatilized to remove the resin tackiness. A predetermined corrugation is formed by thermoforming a conductive member made of a knitted tinsel wire sewn with fibers with a molding die. This is punched into a predetermined shape to obtain a speaker damper.
上記のようにして平網錦糸線からなる導電部材を繊維
で縫着したスピーカ用ダンパーは、導電部材が剥離した
り剥離に伴なう断線等のおそれはない。In the speaker damper in which the conductive member made of the flat braided tinsel wire is sewn with the fibers as described above, there is no risk of peeling of the conductive member or disconnection accompanying peeling.
導電部材を逢着するに際して、導電部材として平網錦
糸線を使用するものであり、導電部材に幅があるから縫
着が容易である。When the conductive member is attached, a flat mesh tinsel wire is used as the conductive member, and the conductive member has a width, so that the conductive member is easily sewn.
更に、通常の銅箔を縫い付けた場合には縫い付けた後
にプレス成型すると切れてしまうが、平網錦糸線におい
ては延性があるから切れずにプレス成型することができ
る。Furthermore, when a normal copper foil is sewn, it will be cut by pressing after sewn, but since the flat mesh tinsel wire has ductility, it can be pressed without cutting.
上記コルゲーションを成形するために、上下の金型に
設けた複数の環状の凹凸部を内周部側と外周部側とでそ
の幅を異ならせた、即ち、内周部側の凹凸部の幅を外周
部側の凹凸部の幅よりも大きくした金型装置が使用され
る。そしてダンパー素材と導電部材とが縫着された状態
でこの金型装置によって加熱成形する。In order to form the corrugation, a plurality of annular uneven portions provided on the upper and lower molds have different widths on the inner peripheral side and the outer peripheral side, that is, the width of the uneven portions on the inner peripheral side. A mold device is used in which the width is larger than the width of the uneven portion on the outer peripheral side. Then, the damper material and the conductive member are sewn together and then heat-molded by this mold device.
この場合、導電部材の内周部側により多くの引き込み
力が作用しても外周部側よりも上記凹凸部の幅が大きい
ため、導電部材の内周部側にクラックが発生したりする
ことはない。In this case, even if more drawing force is applied to the inner peripheral side of the conductive member, since the width of the uneven portion is larger than that of the outer peripheral side, cracks may not occur on the inner peripheral side of the conductive member. Absent.
［実施例］ この発明に係るスピーカ用ダンパーとその製造法の実
施例について第１図乃至第８図に基づいて説明する。[Embodiment] An embodiment of a speaker damper and a manufacturing method thereof according to the present invention will be described with reference to FIGS. 1 to 8.
第１図はスピーカ用ダンパーの平面図、第２図は導電
部材を繊維で縫着した一例を示す平面図、第３図は第１
図Ａ−Ａ線拡大断面図、第４図は第１図Ｂ−Ｂ線断面
図、第５図は第４図におけるＣ部分の拡大断面図、第６
図は製造工程図、第７図（Ａ），（Ｂ）は金型装置での
成形工程を示す断面図、第８図は第７図の成形工程で成
形されたスピーカ用ダンパーを示す断面図である。FIG. 1 is a plan view of a speaker damper, FIG. 2 is a plan view showing an example in which a conductive member is sewn with fibers, and FIG.
FIG. 4 is an enlarged sectional view taken along the line AA in FIG. 4, FIG. 4 is a sectional view taken along the line BB in FIG. 1, and FIG. 5 is an enlarged sectional view taken along the line C in FIG.
FIG. 7 is a manufacturing process diagram, FIGS. 7A and 7B are cross-sectional views showing a molding process in a mold device, and FIG. 8 is a cross-sectional view showing a speaker damper molded in the molding process of FIG. Is.
図において、１はダンパー本体、２は該ダンパー本体
１に同心円状に形成された波形のコルゲーション、３は
上記コルゲーション２の形状に沿わしめて内周部1aから
外周部1b方向に装着した導電部材を示している。なお、
1cはコルゲーション２の外側に形成した貼り代部であ
る。In the figure, 1 is a damper body, 2 is a corrugated corrugation formed concentrically on the damper body 1, and 3 is a conductive member mounted along the shape of the corrugation 2 from the inner peripheral portion 1a to the outer peripheral portion 1b. Shows. In addition,
1c is a bonding margin formed on the outside of the corrugation 2.
ダンパー本体１は、織布又は不織布等の布材からなる
ダンパー素材10を、第６図に示すように、溶剤にて希釈
したフェノール樹脂等の熱硬化性樹脂５を貯溜した処理
槽６内を通過させることにより該熱硬化性樹脂５を含浸
させ、上記溶剤を揮発させて樹脂タック性を取り除いた
状態にし、この状態のダンパー素材10に上記導電部材３
を繊維（糸）４で縫着する。これを熱成形金型で成形し
て同心円状の波形のコルゲーション２を一体形成する。The damper body 1 includes a damper material 10 made of a cloth material such as a woven cloth or a non-woven cloth, and the inside of a treatment tank 6 in which a thermosetting resin 5 such as a phenol resin diluted with a solvent is stored as shown in FIG. The thermosetting resin 5 is impregnated by passing it through, and the solvent is volatilized to remove the resin tack property, and the damper material 10 in this state is attached to the conductive member 3
Are sewn with the fiber (thread) 4. This is molded by a thermoforming die to integrally form a concentric corrugation 2 having a corrugated shape.
上記導電部材３としては、対屈曲性、対振動性を必要
とするスピーカの導電部材において実績のある錦糸線を
平網状に編組した平網錦糸線を使用する。導電部材３の
縫着工程は工業用ミシン７にて簡単に取り付けることが
でき、この場合、導電部材３が錦糸線を平網状に編組し
た平網錦糸線であるから導電部材３に幅があり、縫着が
極めて容易である。As the conductive member 3, a flat braided tinsel wire braided into a flat braided braided tinsel wire, which has a proven track record in the conductive member of a speaker that requires flexibility and vibration resistance, is used. The sewing process of the conductive member 3 can be easily attached with the industrial sewing machine 7. In this case, since the conductive member 3 is a flat mesh tinsel wire braided with a tinsel wire, the conductive member 3 has a width. , Very easy to sew.
このようにして導電部材３を取り付けたのち、金型装
置で加熱プレス成型することにより、ダンパー本体１に
コルゲーション２が一体成形されると共に導電部材３が
コルゲーション２の形状に沿った状態で装着される。After the conductive member 3 is attached in this way, the corrugation 2 is integrally molded on the damper body 1 by heat press molding using a mold device, and the conductive member 3 is mounted in a state along the shape of the corrugation 2. It
そして、第７図（Ａ），（Ｂ）に示すように、上記コ
ルゲーション２を成形するために上下の金型11,12に設
けた複数の環状の凹13と凸部14間の幅を内周部側と外周
部側とで異ならせた、即ち、上記内周部側の凹部13と凸
部14間の幅が外周部側のそれよりも順次大きくなるよう
にした金型装置８が使用される。Then, as shown in FIGS. 7 (A) and 7 (B), the width between the plurality of annular concave portions 13 and convex portions 14 provided in the upper and lower molds 11 and 12 for molding the corrugation 2 is set to be equal to A mold device 8 is used in which the peripheral portion side and the outer peripheral portion side are made different, that is, the width between the concave portion 13 and the convex portion 14 on the inner peripheral portion side is sequentially increased from that on the outer peripheral portion side. To be done.
この場合、導電部材の内周部側より多くの引き込み力
が作用しても外周部側よりも上記凹凸部の幅が大きいこ
とから内周部側での材料の引き込み量が少ないため、導
電部材の内周部側にクラックが発生したりすることはな
い。In this case, even if a larger drawing force than the inner peripheral side of the conductive member is applied, the width of the uneven portion is larger than that of the outer peripheral side, and thus the amount of material drawn in on the inner peripheral side is small. No cracks occur on the inner peripheral side.
上記のようにして成形されたスピーカ用ダンパーは第
８図に示されており、内周部側のコルゲーションの幅Ｗ
が外周部のコルゲーションに至るに従って順次広くなっ
ていると共に導電部材３がこのコルゲーションに沿って
装着されている。The speaker damper molded as described above is shown in FIG. 8, and the width W of the corrugation on the inner peripheral side is shown.
Is gradually widened toward the corrugation of the outer peripheral portion, and the conductive member 3 is attached along the corrugation.
なお、上記した例ではコルゲーション２の幅Ｗだけを
変えたが、コルゲーション２の深さＤが外周部側のコル
ゲーションから内周部側のコルゲーションに至るに従っ
て順次浅くなるようにすることができ、更に幅Ｗと深さ
Ｄが共に外周部側のコルゲーションから内周部側のコル
ゲーションに至るに従って順次広く、しかも浅くするこ
ともできる。In the above example, only the width W of the corrugation 2 is changed, but the depth D of the corrugation 2 can be gradually reduced from the corrugation on the outer peripheral side to the corrugation on the inner peripheral side. Both the width W and the depth D can be made gradually wider and shallower from the corrugation on the outer peripheral side to the corrugation on the inner peripheral side.
［発明の効果］ この発明に係るスピーカ用ダンパーによれば、錦糸線
を平網状に編組してなる平網錦糸線を導電部材とし、こ
れがダンパー本体のコルゲーション形状に沿った形態で
繊維で縫着されているから、従来のように導電部材を接
着する形式のものと異なり接着剤層が形成されないため
しなやかさを保ち、しかも従来のものに比して極めて強
固な装着が可能となり、大振幅を長時間続けても導電部
材がコルゲーション部から剥離することはない。[Effect of the Invention] According to the speaker damper of the present invention, the flat mesh tinsel wire formed by braiding the tinsel wire into a flat mesh is used as a conductive member, and this is sewn with fibers in a form along the corrugation shape of the damper body. Therefore, unlike the conventional type in which a conductive member is adhered, an adhesive layer is not formed, so flexibility is maintained, and it is possible to mount extremely firmly compared to the conventional type, and a large amplitude is achieved. The conductive member does not peel off from the corrugated portion even if it is continued for a long time.
このように、耐屈曲性、耐振動性を必要とするスピー
カの導電部材として実績のある錦糸線を平網状に編組し
てなる平編錦糸線を導電部材として使用したから、導電
部材に幅があり、ダンパー素材への縫着作業が容易であ
ると共に、上記したしなやかさをより発揮させることが
できて振幅の限界性能を極めて大きくとることが可能と
なる。従って、従来例に比して大幅な性能向上が可能と
なり、導電部付きダンパーが使用可能なスピーカの範囲
が広がる。As described above, since the flat knitted tinsel wire braided in a flat net shape by braiding the tinsel wire, which has a proven track record as a conductive member of a speaker that requires bending resistance and vibration resistance, is used as the conductive member, Therefore, the sewing work to the damper material is easy, and the flexibility described above can be exhibited more, and the limit performance of the amplitude can be extremely increased. Therefore, it is possible to significantly improve the performance as compared with the conventional example, and the range of the speaker in which the damper with the conductive portion can be used is expanded.
また、内周部側のコルゲーションの幅が外周部側のコ
ルゲーションの幅よりも広く形成したスピーカ用ダンパ
ーによれば、ダンパー本体内周部側の材料変形率が従来
例より少ないため、導電部材をコルゲーションの形状に
沿って装着しても、内周部側のコルゲーション近傍の導
電部材にクラックが発生することはなく、しかも生産性
が良好である。Further, according to the speaker damper in which the width of the corrugation on the inner peripheral side is wider than the width of the corrugation on the outer peripheral side, the material deformation rate on the inner peripheral side of the damper body is smaller than that of the conventional example. Even if it is mounted along the corrugation shape, no cracks are generated in the conductive member near the corrugation on the inner peripheral side, and the productivity is good.
一方、ダンパー素材の材料が成形時において外周部側
から内周部側に引き込まれる量は従来例に比して大幅に
少なくなるため、成形後のダンパーの残留内部応力が少
なくなり、変形、特に反り等を効果的に防止でき、品質
及び生産性を向上させることができる。On the other hand, the amount of the material of the damper material drawn from the outer peripheral side to the inner peripheral side at the time of molding is significantly smaller than that of the conventional example, so that the residual internal stress of the damper after molding is reduced and deformation, especially It is possible to effectively prevent warpage and improve the quality and productivity.
本発明のスピーカ用ダンパーの製造法においては、樹
脂タック性を取り除いた状態のダンパー素材に平網錦糸
線からなる導電部材を繊維で縫着したのち、これを加熱
成形して製造するものであるから、導電部材に絶縁性樹
脂が付着することはなく、従来のように導電部材に付着
した絶縁性樹脂を取り除く等の工数は不要であり、ま
た、導電部材に幅があるからミシンにで縫着で逢着して
簡単に取り付けることができる。In the method for manufacturing the speaker damper of the present invention, the damper material in the state where the resin tackiness is removed is sewn with the conductive member made of the flat mesh tinsel wire with the fiber, and then the molded product is heated and formed. Therefore, the insulating resin does not adhere to the conductive member, and there is no need for man-hours such as removing the insulating resin adhered to the conductive member as in the conventional case. You can easily attach it by wearing it.
従って、従来例のやのように、接着剤の材質検討
や複雑な接着剤塗布方法等が不要となり、工数を低減で
きて、次工程への移行の容易性、手離れの良好性、中間
仕掛品の減少等によりコストダウンが可能となる。しか
も接着剤を使用していないことから加熱成形時における
金型へのダンパー本体の付着はなく、脱型作業が容易で
ある等の効果がある。Therefore, unlike the case of the conventional example, it is not necessary to study the material of the adhesive and a complicated adhesive application method, and the man-hours can be reduced, the transition to the next process is easy, the ease of handing off, and the intermediate process. Cost reduction can be achieved by reducing the number of products. Moreover, since the adhesive is not used, the damper main body does not adhere to the mold during the heat molding, and there is an effect that the demolding work is easy.
第１図乃至第８図は本発明に係るスピーカ用ダンパーと
その製造法の実施例を示し、第１図はスピーカ用ダンパ
ーの平面図、第２図は導電部材を繊維で縫着した一例を
示す平面図、第３図は第１図Ａ−Ａ線拡大断面図、第４
図は第１図Ｂ−Ｂ線断面図、第５図は第４図におけるＣ
部分の拡大断面図、第６図は製造工程図、第７図
（Ａ），（Ｂ）は金型装置での成形工程を示す断面図、
第８図は第７図の成形工程で成形されたスピーカ用ダン
パーを示す断面図である。 第９図乃至第15図は従来より提案されている導電部材配
置型のスピーカ用ダンパーとその製造法及び製造金型を
説明するための図であり、第９図はスピーカ用ダンパー
の平面図、第10図は第９図Ａ−Ａ線断面図、第11図は第
９図Ｂ−Ｂ線断面図、第12図は第11図Ｃ部分の拡大断面
図、第13図はコルゲーションの幅及び深さが均一である
ことを示すダンパーの断面図、第14図（Ａ）〜（Ｃ）は
製造工程図、第15図（Ａ），（Ｂ）はダンパー本体成形
工程を示す金型の断面図、第15図（Ｃ），（Ｄ）は導電
部材装着工程を示す金型の断面図である。 1:ダンパー本体、1a:内周部、1b:外周部、2:コルゲーシ
ョン、3:導電部材 4:繊維、5:熱硬化性樹脂、8:金型装置、10:ダンパー素
材11,12:金型1 to 8 show an embodiment of a speaker damper and a manufacturing method thereof according to the present invention. FIG. 1 is a plan view of the speaker damper, and FIG. 2 is an example in which a conductive member is sewn with fibers. The plan view shown in FIG. 3 is an enlarged sectional view taken along line AA in FIG.
The drawing is a cross-sectional view taken along the line BB in FIG. 1, and FIG. 5 is C in FIG.
FIG. 6 is an enlarged sectional view of a portion, FIG. 6 is a manufacturing process diagram, and FIGS. 7A and 7B are sectional views showing a molding process in a mold apparatus.
FIG. 8 is a sectional view showing the speaker damper molded in the molding process of FIG. FIG. 9 to FIG. 15 are views for explaining a conventionally proposed conductive member arrangement type speaker damper, a method of manufacturing the same, and a manufacturing mold, and FIG. 9 is a plan view of the speaker damper. 10 is a sectional view taken along the line AA of FIG. 9, FIG. 11 is a sectional view taken along the line BB of FIG. 9, FIG. 12 is an enlarged sectional view of a portion C of FIG. 11, and FIG. Cross-sectional view of the damper showing that the depth is uniform, FIGS. 14 (A) to (C) are manufacturing process drawings, and FIGS. 15 (A) and 15 (B) are cross-sectional views of the mold showing the damper main body molding process. FIGS. 15 (C) and 15 (D) are sectional views of the mold showing the conductive member mounting step. 1: damper body, 1a: inner peripheral part, 1b: outer peripheral part, 2: corrugation, 3: conductive member 4: fiber, 5: thermosetting resin, 8: mold device, 10: damper material 11, 12: metal Type
───────────────────────────────────────────────────── フロントページの続き (72)発明者 芳賀 昭彦 山形県最上郡真室川町大字新町字塩野 954番の１ 最上電機株式会社内 (56)参考文献 特開 昭61−21899（ＪＰ，Ａ) 実開 昭61−107298（ＪＰ，Ｕ) 実開 昭58−138495（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiko Haga No. 954-1 Shiono, Shinmachi, Mamurogawa-cho, Mogami-gun, Yamagata Prefecture Mogami Denki Co., Ltd. (56) Reference JP-A-61-21899 (JP, A) Actual Kai 61-107298 (JP, U) Actual Sho 58-138495 (JP, U)
Claims (3)
素材にフェノール樹脂その他の熱硬化性樹脂を含浸させ
ると共に熱成型加工により同芯円状の複数のコルゲーシ
ョンを一体形成したダンパー本体と、上記コルゲーショ
ンの形状に沿わしめて内周部から外周部方向に装着した
導電部材とからなるスピーカ用ダンパーにおいて、 上記導電部材が平網錦糸線であり、該導電部材がダンパ
ー本体に繊維で縫着されていることを特徴とするスピー
カ用ダンパー。1. A damper main body in which a damper material made of a cloth material such as woven cloth or non-woven cloth is impregnated with a phenol resin or other thermosetting resin, and a plurality of concentric corrugations are integrally formed by thermoforming. A speaker damper comprising a conductive member mounted from the inner peripheral portion toward the outer peripheral portion along the shape of the corrugation, wherein the conductive member is a flat mesh tinsel wire, and the conductive member is sewn to the damper main body with a fiber. The damper for the speaker, which is characterized by
ションから内周部側のコルゲーションに至るに従って順
次広くなっていることを特徴とする請求項１記載のスピ
ーカ用ダンパー。2. The speaker damper according to claim 1, wherein the width of the corrugations is gradually increased from the corrugations on the outer peripheral side to the corrugations on the inner peripheral side.
素材にフェノール樹脂その他の熱硬化性樹脂を含浸させ
ると共に熱成型加工により同芯円状の複数のコルゲーシ
ョンを一体形成したダンパー本体と、上記コルゲーショ
ンの形状に沿わしめて内周部から外周部方向に装着した
導電部材とからなるスピーカ用ダンパーを製造する方法
において、布材からなるダンパー素材に熱硬化性樹脂を
含浸させた後、これに平網錦糸線からなる導電部材を繊
維で縫着し、この状態で熱成型加工することにより導電
部材を装着した複数のコルゲーションを一体形成するこ
とを特徴とするスピーカ用ダンパーの製造法。3. A damper body in which a damper material made of a cloth material such as woven cloth or non-woven cloth is impregnated with a phenol resin or other thermosetting resin, and a plurality of concentric corrugations are integrally formed by thermoforming. In a method of manufacturing a speaker damper consisting of a conductive member mounted in the outer peripheral direction from the inner peripheral part along the shape of the corrugation, after impregnating a thermosetting resin into a damper material composed of a cloth material, A method for manufacturing a speaker damper, characterized in that a conductive member made of a flat mesh tinsel wire is sewn with fibers, and a plurality of corrugations mounted with the conductive member are integrally formed by thermoforming in this state.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63286679A JP2671140B2 (en) | 1988-11-15 | 1988-11-15 | Speaker damper and its manufacturing method |
| EP89121155A EP0369434B1 (en) | 1988-11-15 | 1989-11-15 | Speaker damper configuration |
| DE68920956T DE68920956T2 (en) | 1988-11-15 | 1989-11-15 | Loudspeaker damping arrangement. |
| US07/675,033 US5125473A (en) | 1988-11-15 | 1991-03-25 | Speaker damper configuration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63286679A JP2671140B2 (en) | 1988-11-15 | 1988-11-15 | Speaker damper and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02134100A JPH02134100A (en) | 1990-05-23 |
| JP2671140B2 true JP2671140B2 (en) | 1997-10-29 |
Family
ID=17707564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63286679A Expired - Lifetime JP2671140B2 (en) | 1988-11-15 | 1988-11-15 | Speaker damper and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2671140B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2556209Y2 (en) * | 1990-02-20 | 1997-12-03 | オンキヨー株式会社 | Speaker damper |
| JPH0436399U (en) * | 1990-07-24 | 1992-03-26 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58138495U (en) * | 1982-03-10 | 1983-09-17 | パイオニア株式会社 | acoustic transducer damper |
| JPS61107298U (en) * | 1984-12-17 | 1986-07-08 | ||
| JPS61218299A (en) * | 1985-03-25 | 1986-09-27 | Pioneer Electronic Corp | Damper for speaker and its manufacture |
-
1988
- 1988-11-15 JP JP63286679A patent/JP2671140B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02134100A (en) | 1990-05-23 |
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