JP2562527B2 - Method of manufacturing fishing rod - Google Patents
Method of manufacturing fishing rodInfo
- Publication number
- JP2562527B2 JP2562527B2 JP16149191A JP16149191A JP2562527B2 JP 2562527 B2 JP2562527 B2 JP 2562527B2 JP 16149191 A JP16149191 A JP 16149191A JP 16149191 A JP16149191 A JP 16149191A JP 2562527 B2 JP2562527 B2 JP 2562527B2
- Authority
- JP
- Japan
- Prior art keywords
- winding
- prepreg
- fiber
- layer
- strength
- 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
- Fishing Rods (AREA)
- Laminated Bodies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、高強度繊維に合成樹脂
を含浸したプリプレグを巻回することにより、内層，中
間層および外層を同心状に形成してなる釣竿の製造方法
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a fishing rod in which a high strength fiber is wound with a prepreg impregnated with a synthetic resin to form an inner layer, an intermediate layer and an outer layer in a concentric manner.
【０００２】[0002]
【従来の技術】従来、高強度繊維に合成樹脂を含浸した
プリプレグを巻回することにより、複数の高強度繊維層
を同心状に形成した釣竿として、例えば、実公平２−４
６２８６号公報に開示されるものが知られている。2. Description of the Related Art Conventionally, as a fishing rod in which a plurality of high-strength fiber layers are concentrically formed by winding a prepreg in which high-strength fibers are impregnated with a synthetic resin, for example, Japanese Utility Model 2-4
The one disclosed in Japanese Patent No. 6286 is known.
【０００３】この実公平２−４６２８６号公報に開示さ
れる釣竿では、釣竿が内層，中間層および外層の３層か
らなり、内層が、周方向に高強度繊維を引き揃えたプリ
プレグシートを巻回することにより形成され、中間層
が、軸長方向に高強度繊維を引き揃えたプリプレグシー
トを巻回することにより形成され、さらに、外層が、高
強度繊維の繊維方向を長手方向としたテープ状のプリプ
レグを巻回することにより形成されている。In the fishing rod disclosed in Japanese Utility Model Publication No. 2-46286, the fishing rod is composed of three layers of an inner layer, an intermediate layer and an outer layer, and the inner layer is wound with a prepreg sheet in which high strength fibers are aligned in the circumferential direction. The intermediate layer is formed by winding a prepreg sheet in which high-strength fibers are aligned in the axial direction, and the outer layer is tape-shaped with the fiber direction of the high-strength fibers in the longitudinal direction. It is formed by winding the prepreg.
【０００４】このような釣竿では、内層および外層にお
いて、中間層と繊維方向を異ならせたので、釣竿の曲げ
強度および潰れ強度を向上することができる。In such a fishing rod, since the fiber directions in the inner layer and the outer layer are different from those in the intermediate layer, the bending strength and the crushing strength of the fishing rod can be improved.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、このよ
うな従来の釣竿では、内層を、周方向に高強度繊維を引
き揃えたプリプレグシートを巻回することにより形成し
ているため、マンドレルにプリプレグシートを巻回する
と、プリプレグシートの巻回終了端が一部重合し、段差
部が形成され、プリプレグシートの巻回終了端がマンド
レルから離れて反り返り易く、このプリプレグシートの
外側に、中間層を形成するためのプリプレグシートを巻
回すると、中間層を形成するためのプリプレグシートの
高強度繊維が蛇行し、また、プリプレグシートの肉厚が
変化し、曲げ強度等が低下するという問題があった。However, in such a conventional fishing rod, since the inner layer is formed by winding the prepreg sheet in which high-strength fibers are aligned in the circumferential direction, the prepreg sheet is formed on the mandrel. When wound, the winding end of the prepreg sheet is partially polymerized to form a step, and the winding end of the prepreg sheet easily separates from the mandrel and warps, forming an intermediate layer on the outside of the prepreg sheet. When the prepreg sheet for winding is wound, there is a problem that the high-strength fibers of the prepreg sheet for forming the intermediate layer meander and the thickness of the prepreg sheet changes, resulting in a decrease in bending strength and the like.
【０００６】また、中間層の外側に、テープ状のプリプ
レグを巻回することにより外層を形成しているため、テ
ープ状のプリプレグの巻回時に、中間層の高強度繊維に
周方向の力が作用し、中間層の高強度繊維が捩じれ、ま
た、巻回時の加圧力が不足するという問題があった。Further, since the outer layer is formed by winding a tape-shaped prepreg on the outside of the intermediate layer, a circumferential force is exerted on the high-strength fiber of the intermediate layer when the tape-shaped prepreg is wound. There is a problem in that the high-strength fibers of the intermediate layer are twisted due to the action, and the pressing force during winding is insufficient.
【０００７】さらに、テープ状のプリプレグを巻回する
ことにより外層を形成しているため、高強度繊維が周方
向に連続状態となり、成形時に縮径が生じ、高強度繊維
の傾斜や蛇行が増大し、強度が低下するという問題があ
った。Further, since the outer layer is formed by winding the tape-shaped prepreg, the high-strength fibers are circumferentially continuous, and the diameter decreases during molding, and the inclination and meandering of the high-strength fibers increase. However, there is a problem that the strength is reduced.
【０００８】また、中間層の外側へのテープ状のプリプ
レグの巻回では、テープ状のプリプレグの両端縁を一致
させて巻回することが困難であり、目開きや重合部が生
じ、さらに、巻回時に、中間層の高強度繊維を損傷する
虞れがある。Further, when the tape-shaped prepreg is wound on the outside of the intermediate layer, it is difficult to wind the tape-shaped prepreg so that both end edges of the tape-shaped prepreg are aligned with each other. During winding, there is a risk of damaging the high-strength fibers of the intermediate layer.
【０００９】本発明は、かかる従来の問題を解決するた
めになされたもので、各層の肉厚のバラツキ、高強度繊
維の蛇行等がない強度の高い釣竿を容易に製造すること
ができる釣竿の製造方法を提供することを目的とする。The present invention has been made in order to solve the above-mentioned conventional problems, and it is possible to easily manufacture a fishing rod having high strength without variations in wall thickness of each layer and meandering of high-strength fibers. It is intended to provide a manufacturing method.
【００１０】[0010]
【課題を解決するための手段】本発明の釣竿の製造方法
は、高強度繊維に合成樹脂を含浸したプリプレグを巻回
することにより、内層，中間層および外層を同心状に形
成し、前記内層と外層とを、高強度繊維を周方向に配列
して形成し、前記中間層を、高強度繊維を軸長方向に配
列して形成してなる釣竿の製造方法において、前記内層
を、高強度繊維の繊維方向を長手方向としたテープ状の
薄肉厚プリプレグを、マンドレルに螺旋状に密に巻回す
ることにより形成し、前記中間層を、前記内層の外側
に、高強度繊維の繊維方向を軸長方向とした肉厚の比較
的厚いプリプレグシートを巻回することにより形成し、
さらに、前記外層を、前記中間層の外側に、高強度繊維
の繊維方向を周方向とした肉厚の比較的薄いプリプレグ
シートを、巻回終了端が一部重合するように巻回して形
成するものである。The method for producing a fishing rod according to the present invention comprises forming a concentric inner layer, an intermediate layer and an outer layer by winding a prepreg in which high strength fibers are impregnated with a synthetic resin. And an outer layer are formed by arranging high-strength fibers in the circumferential direction, and the intermediate layer is a method for manufacturing a fishing rod formed by arranging high-strength fibers in the axial direction, wherein the inner layer has a high strength. A tape-shaped thin-walled prepreg whose longitudinal direction is the fiber direction of the fiber, is formed by closely winding a mandrel in a spiral shape, the intermediate layer is provided outside the inner layer, and the fiber direction of the high-strength fiber is Formed by winding a relatively thick prepreg sheet with the axial length direction,
Further, the outer layer is formed by winding a relatively thin prepreg sheet with the fiber direction of the high-strength fiber in the circumferential direction on the outside of the intermediate layer so that the winding end ends are partially polymerized. It is a thing.
【００１１】[0011]
【作用】本発明の釣竿の製造方法では、内層が、高強度
繊維の繊維方向を長手方向としたテープ状の薄肉厚プリ
プレグを、マンドレルに螺旋状に密に巻回することによ
り形成され、中間層が、内層の外側に、高強度繊維の繊
維方向を軸長方向とした肉厚の比較的厚いプリプレグシ
ートを巻回することにより形成され、さらに、外層が、
中間層の外側に、高強度繊維の繊維方向を周方向とした
肉厚の比較的薄いプリプレグシートを、巻回終了端が一
部重合するように巻回して形成される。In the method for manufacturing a fishing rod according to the present invention, the inner layer is formed by closely winding a tape-shaped thin-walled prepreg in which the fiber direction of the high-strength fiber is the longitudinal direction on the mandrel in a spiral shape. The layer is formed by winding a relatively thick prepreg sheet with the fiber direction of the high-strength fiber in the axial direction on the outer side of the inner layer, and further, the outer layer,
On the outside of the intermediate layer, a prepreg sheet having a relatively thin wall thickness with the fiber direction of the high-strength fiber in the circumferential direction is wound so as to partially overlap the winding end.
【００１２】[0012]
【実施例】以下、本発明の詳細を図面に示す実施例につ
いて説明する。図１は、本発明の釣竿の製造方法の一実
施例を示しており、図２は、図１の釣竿の製造方法によ
り製造された釣竿を示している。Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows an embodiment of a method for manufacturing a fishing rod according to the present invention, and FIG. 2 shows a fishing rod manufactured by the method for manufacturing a fishing rod shown in FIG.
【００１３】図２に示す釣竿では、カーボン繊維からな
る高強度繊維に、エポキシ樹脂からなる合成樹脂を含浸
したプリプレグを巻回することにより、内層１１，中間
層１３，外層１５の３層からなる高強度繊維層が同心状
に形成されている。In the fishing rod shown in FIG. 2, a high-strength fiber made of carbon fiber is wound with a prepreg impregnated with a synthetic resin made of epoxy resin to form an inner layer 11, an intermediate layer 13, and an outer layer 15. The high-strength fiber layer is formed concentrically.
【００１４】そして、内層１１および外層１５が、周方
向に高強度繊維１７，１９を配して形成され、中間層１
３が、軸長方向に高強度繊維２１を配して形成されてい
る。このような釣竿は、本発明の釣竿の製造方法の一実
施例により以下述べるように製造される。The inner layer 11 and the outer layer 15 are formed by arranging high-strength fibers 17 and 19 in the circumferential direction, and the intermediate layer 1
3 is formed by arranging high-strength fibers 21 in the axial direction. Such a fishing rod is manufactured as described below by an embodiment of the method for manufacturing a fishing rod of the present invention.
【００１５】すなわち、先ず、図１の（ａ）に示すよう
に、マンドレル２３が用意され、このマンドレル２３の
表面に離型ワックスが塗布される。なお、この実施例で
は、仮止めレジン等の塗布は不要である。That is, first, as shown in FIG. 1A, a mandrel 23 is prepared, and a release wax is applied to the surface of the mandrel 23. In this embodiment, it is not necessary to apply a temporary fixing resin or the like.
【００１６】この後、（ｂ）に示すように、例えば、カ
ーボン繊維からなる高強度繊維１７の繊維方向を長手方
向としたテープ状の薄肉厚プリプレグ２５を、マンドレ
ル２３に螺旋状に密に巻回することにより内層１１が形
成される。Thereafter, as shown in (b), a tape-shaped thin-walled prepreg 25 whose longitudinal direction is the fiber direction of the high-strength fiber 17 made of carbon fiber is spirally and densely wound around the mandrel 23. The inner layer 11 is formed by turning.
【００１７】テープ状の薄肉厚プリプレグ２５は、例え
ば、幅が３〜１０mm程度、肉厚が０．０１〜０．０４mm
であり、例えば、ポリプロピレンからなる離型テープ２
７に離脱自在に添着されている。The tape-shaped thin prepreg 25 has, for example, a width of about 3 to 10 mm and a thickness of 0.01 to 0.04 mm.
And a release tape 2 made of polypropylene, for example.
It is attached detachably to 7.
【００１８】テープ状の薄肉厚プリプレグ２５は、マン
ドレル２３に、例えば、７５°〜９０°の角度θで、離
型テープ２７とともに螺旋状に密に巻回され、巻回しな
がら、あるいは巻回終了後に、離型テープ２７が取り除
かれる。The tape-shaped thin-walled prepreg 25 is spirally and densely wound around the mandrel 23 together with the release tape 27 at an angle θ of, for example, 75 ° to 90 °, while winding or at the end of winding. After that, the release tape 27 is removed.
【００１９】この後、（ｃ）および（ｄ）に示すよう
に、中間層１３が、内層１１の外側に、高強度繊維２１
の繊維方向を軸長方向とした肉厚の比較的厚いプリプレ
グシート２９を巻回することにより形成され、さらに、
外層１５が、中間層１３の外側に、高強度繊維１５の繊
維方向を周方向とした肉厚の比較的薄いプリプレグシー
ト３１を、巻回終了端が一部重合するように巻回して形
成される。After that, as shown in (c) and (d), the intermediate layer 13 is formed on the outer side of the inner layer 11 by the high strength fiber 21.
Is formed by winding a relatively thick prepreg sheet 29 whose fiber direction is the axial direction, and
The outer layer 15 is formed by winding a relatively thin prepreg sheet 31 with the fiber direction of the high-strength fiber 15 in the circumferential direction on the outside of the intermediate layer 13 so that the winding end ends are partially polymerized. It
【００２０】なお、この実施例では、中間層１３形成用
のプリプレグシート２９は、２巻き可能なだけの長さを
有しており、外層１５形成用のプリプレグシート３１
は、中間層１３形成用のプリプレグシート２９の一端に
接続され、１巻き可能なだけの長さを有している。In this embodiment, the prepreg sheet 29 for forming the intermediate layer 13 has a length such that it can be wound twice, and the prepreg sheet 31 for forming the outer layer 15 is formed.
Is connected to one end of the prepreg sheet 29 for forming the intermediate layer 13 and has a length that allows one winding.
【００２１】また、中間層１３形成用のプリプレグシー
ト２９は、合成樹脂比率が２５重量％以下とされ、外層
１５形成用のプリプレグシート３１は、合成樹脂比率が
３５重量％以上とされ、その肉厚を０．０１〜０．０４
mmとされている。The prepreg sheet 29 for forming the intermediate layer 13 has a synthetic resin ratio of 25% by weight or less, and the prepreg sheet 31 for forming the outer layer 15 has a synthetic resin ratio of 35% by weight or more. 0.01 ~ 0.04 thickness
It is said to be mm.
【００２２】そして、中間層１３および外層１５形成用
のプリプレグシート２９，３１は、（ｄ）に示したよう
に、テーブル３３上に、マンドレル２３およびプリプレ
グシート２９，３１を載置した状態で、マンドレル２３
の上部に押圧板３５を当接し、押圧板３５を矢符Ａ方向
に移動するシートローリング法により、マンドレル２３
に巻回される。The prepreg sheets 29 and 31 for forming the intermediate layer 13 and the outer layer 15 have the mandrel 23 and the prepreg sheets 29 and 31 placed on the table 33, as shown in FIG. Mandrel 23
The mandrel 23 by the sheet rolling method in which the pressing plate 35 is brought into contact with the upper part of the sheet and the pressing plate 35 is moved in the arrow A direction.
Is wound around.
【００２３】この後、（ｅ）に示すように、外層１５の
外側に、テープ３７を巻回するテーピングが行われ、各
層１１，１３，１５を加熱硬化する焼成が行われ、さら
に、マンドレル２３、テープ３７が除去され、所定の釣
竿が製造される。Thereafter, as shown in (e), taping is performed by winding a tape 37 around the outer layer 15, firing is performed to heat and harden each of the layers 11, 13 and 15, and the mandrel 23 is further provided. The tape 37 is removed, and a predetermined fishing rod is manufactured.
【００２４】しかして、上述した釣竿の製造方法では、
内層１１を、高強度繊維１７の繊維方向を長手方向とし
たテープ状の薄肉厚プリプレグ２５を、マンドレル２３
に螺旋状に密に巻回することにより形成し、中間層１３
を、内層１１の外側に、高強度繊維２１の繊維方向を軸
長方向とした肉厚の比較的厚いプリプレグシート２９を
巻回することにより形成し、さらに、外層１５を、中間
層１３の外側に、高強度繊維１９の繊維方向を周方向と
した肉厚の比較的薄いプリプレグシート３１を、巻回終
了端が一部重合するように巻回して形成するようにした
ので、各層１１，１３，１５の肉厚のバラツキ、高強度
繊維１７，１９，２１の蛇行等がない強度の高い釣竿を
容易に製造することができる。However, in the above-described method for manufacturing a fishing rod,
The inner layer 11 is a tape-shaped thin-walled prepreg 25 whose longitudinal direction is the fiber direction of the high-strength fiber 17, and the mandrel 23.
And the intermediate layer 13
Is formed by winding a relatively thick prepreg sheet 29 having the fiber direction of the high-strength fiber 21 as the axial direction on the outer side of the inner layer 11, and the outer layer 15 on the outer side of the intermediate layer 13. In addition, since the prepreg sheet 31 having a relatively thin wall thickness with the fiber direction of the high-strength fiber 19 in the circumferential direction is wound so as to partially overlap the winding end, the layers 11 and 13 are formed. , 15 and the high-strength fibers 17, 19, 21 without meandering, etc., the fishing rod with high strength can be easily manufactured.
【００２５】すなわち、上述した釣竿の製造方法では、
内層１１を、高強度繊維１７の繊維方向を長手方向とし
たテープ状の薄肉厚プリプレグ２５により形成したが、
このテープ状の薄肉厚プリプレグ２５は、マンドレル２
３に直接巻回されるため、非常に巻回が容易であり、巻
回時における薄肉厚プリプレグ２５の引っ張り力が小さ
くても、成形時に、高強度繊維１７に蛇行等が生じ難
く、また、テープ状の薄肉厚プリプレグ２５を螺旋状に
連続して巻回するため、内層１１の外表面に凹凸が形成
されることが比較的少なく、中間層１３の肉厚を均一に
することが可能となる。That is, in the above-described method for manufacturing a fishing rod,
The inner layer 11 was formed of a tape-shaped thin-walled prepreg 25 having the fiber direction of the high-strength fiber 17 as the longitudinal direction.
This tape-shaped thin-walled prepreg 25 is used for the mandrel 2
Since it is directly wound around 3, the winding is very easy, and even if the pulling force of the thin-walled prepreg 25 at the time of winding is small, the high-strength fiber 17 is less likely to meander at the time of molding, and Since the tape-shaped thin prepreg 25 is continuously wound in a spiral shape, unevenness is relatively rarely formed on the outer surface of the inner layer 11, and the thickness of the intermediate layer 13 can be made uniform. Become.
【００２６】また、外層１５を、中間層１３の外側に、
高強度繊維１９の繊維方向を周方向とした肉厚の比較的
薄いプリプレグシート３１を、巻回終了端が一部重合す
るように巻回して形成するようにしたので、テープ状の
プリプレグを巻回して外層を形成する場合のように、中
間層１３の高強度繊維２１に周方向の力が作用し、中間
層１３の高強度繊維２１が捩じれ、また、巻回時の加圧
力が不足するということがなくなる。Further, the outer layer 15 is provided outside the intermediate layer 13,
Since the relatively thin prepreg sheet 31 with the fiber direction of the high-strength fibers 19 in the circumferential direction is wound so as to partially overlap the winding end, the tape-shaped prepreg is wound. As in the case of rotating to form the outer layer, a circumferential force acts on the high-strength fiber 21 of the intermediate layer 13, the high-strength fiber 21 of the intermediate layer 13 is twisted, and the pressing force at the time of winding is insufficient. Will disappear.
【００２７】また、外層１５の高強度繊維１９が、テー
プ状のプリプレグを巻回して外層を形成する場合のよう
に、周方向に連続状態となることがなくなり、成形時に
縮径が生じ、高強度繊維１９の傾斜や蛇行が増大し、強
度が低下するということがなくなる。Further, the high-strength fibers 19 of the outer layer 15 do not become continuous in the circumferential direction as in the case of winding the tape-shaped prepreg to form the outer layer, and the diameter is reduced during the molding, resulting in high The inclination or meandering of the strength fiber 19 does not increase, and the strength does not decrease.
【００２８】さらに、外層１５を、中間層１３の外側
に、高強度繊維１９の繊維方向を周方向とした肉厚の比
較的薄いプリプレグシート３１を、巻回終了端が一部重
合するように巻回して形成したので、目開きが生じるこ
とを確実に解消することが可能となる。Further, the outer layer 15 is provided on the outer side of the intermediate layer 13, and a relatively thin prepreg sheet 31 having the fiber direction of the high-strength fiber 19 as the circumferential direction is formed so that the winding end part is partially polymerized. Since it is formed by winding, it is possible to reliably eliminate the occurrence of openings.
【００２９】また、上述した実施例では、シートローリ
ング法により中間層１３および外層１５を形成するよう
にしたので、外層１５の巻回時に、中間層１３を含めて
加圧状態で確実に巻回することができる。Further, in the above-mentioned embodiment, since the intermediate layer 13 and the outer layer 15 are formed by the sheet rolling method, when the outer layer 15 is wound, the intermediate layer 13 and the intermediate layer 13 are surely wound in a pressurized state. can do.
【００３０】なお、上述した実施例において、釣竿の内
径を２０mmとし、内層１１を、肉厚０．０３mm、繊維量
３０ｇ／ｍ2 のテープ状の薄肉厚プリプレグ２５を一回
巻回して形成し、中間層１３を、肉厚０．１５mm、繊維
量３０ｇ／ｍ2 のプリプレグシート２９を２回巻回して
形成し、外層１５を、肉厚０．０３mm、３０ｇ／ｍ2 の
プリプレグシート３１を１回巻回して形成した釣竿で
は、パイプ４点曲げ試験結果は、サンプル数５におい
て、曲げ強度が、６７．１０kg／mm2 ，６８．１０kg／
mm2 ，６６．８７kg／mm2 ，６６．７１kg／mm2 ，６
７．８３kg／mm2 であり、平均の曲げ強度が、６７．３
２kg／mm2 であった。In the above-mentioned embodiment, the inner diameter of the fishing rod is set to 20 mm, the inner layer 11 is formed by winding once a tape-shaped thin prepreg 25 having a wall thickness of 0.03 mm and a fiber amount of 30 g / m 2. , an intermediate layer 13, the thickness 0.15 mm, the prepreg sheet 29 of fiber content 30 g / m 2 formed by turning twice winding, the outer layer 15, the thickness 0.03 mm, the prepreg sheet 31 of 30 g / m 2 For the fishing rod formed by winding once, the pipe 4-point bending test result shows that the bending strength is 67.10 kg / mm 2 , 68.10 kg /
mm 2 , 66.87 kg / mm 2 , 66.71 kg / mm 2 , 6
7.83 kg / mm 2 , with an average bending strength of 67.3
It was 2 kg / mm 2 .
【００３１】一方、釣竿の内径を２０mmとし、内層を、
肉厚０．０３mm、繊維量３０ｇ／ｍ 2 のプリプレグシー
トを一回巻回して形成し、中間層を、肉厚０．３mm、繊
維量３０ｇ／ｍ2 のプリプレグシートを１回巻回して形
成し、外層を、肉厚０．０３mm、３０ｇ／ｍ2 のテープ
状のプリプレグを１回巻回して形成した釣竿では、パイ
プ４点曲げ試験結果は、サンプル数５において、曲げ強
度が、６８．９６kg／mm2 ，７０．１８kg／mm2 ，５
９．３２kg／mm2 ，６８．５９kg／mm2 ，６５．４５kg
／mm2 で、平均の曲げ強度が、６６．５０kg／mm2 であ
り、実施例の釣竿では、曲げ強度が大幅に向上し、ま
た、曲げ強度のバラツキが小さいことがわかる。On the other hand, the inner diameter of the fishing rod is 20 mm and the inner layer is
Wall thickness 0.03 mm, fiber amount 30 g / m 2Prepregsy
It is formed by winding a single layer, and the intermediate layer is
Weighing capacity 30g / m2The prepreg sheet of is wound once and formed
Made, the outer layer, thickness 0.03mm, 30g / m2Tape
With a fishing rod made by winding a single prepreg,
The 4-point bending test results show that the bending strength is
Degree is 68.96 kg / mm2, 70.18kg / mm2, 5
9.32 kg / mm2, 68.59 kg / mm2, 65.45 kg
/ Mm2And the average bending strength is 66.50 kg / mm2And
In the fishing rod of the example, the bending strength was significantly improved.
Also, it can be seen that the variation in bending strength is small.
【００３２】[0032]
【発明の効果】以上述べたように、本発明の釣竿の製造
方法では、各層の肉厚のバラツキ、高強度繊維の蛇行等
がない強度の高い釣竿を容易に製造することができると
いう利点がある。As described above, the method of manufacturing a fishing rod of the present invention has an advantage that it is possible to easily manufacture a fishing rod having high strength without variations in wall thickness of each layer and meandering of high-strength fibers. is there.
【図１】本発明の釣竿の製造方法の一実施例を示す工程
図である。FIG. 1 is a process drawing showing an embodiment of a method for manufacturing a fishing rod according to the present invention.
【図２】図１の製造方法により製造された釣竿を段剥状
態で示す斜視図である。FIG. 2 is a perspective view showing a fishing rod manufactured by the manufacturing method of FIG. 1 in a step-peeled state.
【符号の説明】 １１ 内層 １３ 中間層 １５ 外層 １７，１９，２１ 高強度繊維 ２３ マンドレル ２５ 薄肉厚プリプレグ ２９，３１ プリプレグシート[Explanation of symbols] 11 inner layer 13 middle layer 15 outer layer 17, 19, 21 high-strength fiber 23 mandrel 25 thin-walled prepreg 29, 31 prepreg sheet
Claims (1)
レグを巻回することにより、内層，中間層および外層を
同心状に形成し、前記内層と外層とを、高強度繊維を周
方向に配列して形成し、前記中間層を、高強度繊維を軸
長方向に配列して形成してなる釣竿の製造方法におい
て、前記内層を、高強度繊維の繊維方向を長手方向とし
たテープ状の薄肉厚プリプレグを、マンドレルに螺旋状
に密に巻回することにより形成し、前記中間層を、前記
内層の外側に、高強度繊維の繊維方向を軸長方向とした
肉厚の比較的厚いプリプレグシートを巻回することによ
り形成し、さらに、前記外層を、前記中間層の外側に、
高強度繊維の繊維方向を周方向とした肉厚の比較的薄い
プリプレグシートを、巻回終了端が一部重合するように
巻回して形成することを特徴とする釣竿の製造方法。1. An inner layer, an intermediate layer and an outer layer are concentrically formed by winding a prepreg in which high strength fibers are impregnated with a synthetic resin, and the high strength fibers are arranged in the circumferential direction in the inner layer and the outer layer. In the method for manufacturing a fishing rod, wherein the intermediate layer is formed by arranging high-strength fibers in the axial length direction, the inner layer is a tape-shaped thin wall whose longitudinal direction is the fiber direction of the high-strength fibers. A thick prepreg is formed by closely winding spirally around a mandrel, and the intermediate layer is provided outside the inner layer, and the prepreg sheet having a relatively large wall thickness in which the fiber direction of the high-strength fiber is in the axial direction. Is formed by winding, further, the outer layer, outside the intermediate layer,
A method for manufacturing a fishing rod, comprising forming a relatively thin prepreg sheet having a high strength fiber in a circumferential direction in a circumferential direction and winding the prepreg sheet so that a winding end portion is partially polymerized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16149191A JP2562527B2 (en) | 1991-07-02 | 1991-07-02 | Method of manufacturing fishing rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16149191A JP2562527B2 (en) | 1991-07-02 | 1991-07-02 | Method of manufacturing fishing rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH057444A JPH057444A (en) | 1993-01-19 |
| JP2562527B2 true JP2562527B2 (en) | 1996-12-11 |
Family
ID=15736085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16149191A Expired - Lifetime JP2562527B2 (en) | 1991-07-02 | 1991-07-02 | Method of manufacturing fishing rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2562527B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003144016A (en) * | 2001-11-13 | 2003-05-20 | Shimano Inc | Method for producing fishing rod body |
| KR100967654B1 (en) * | 2008-03-19 | 2010-07-07 | 주식회사은성사 | Fishing rod |
-
1991
- 1991-07-02 JP JP16149191A patent/JP2562527B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH057444A (en) | 1993-01-19 |
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