200303721 (1) 玖、發明說明 【發明所屬之技術領域】 本發明，是有關於釣竿，詳細的說，是有關具備由纖 維強化樹脂所構成的竿管的釣竿。 【先前技術】 竹竿，是柔和地彎曲，對於彎曲的回復（復元於原來 的狀態）因爲是安穩，所以釣感良好，且習知多種多樣的 竹竿被製造販售。 但是，竹竿，雖是將天然的竹直接加熱加工、去節加 工、捲線·塗裝加工等的處理來使用，但其性能是會因竹 的生長程度或加工方法等被深深地影響，而使每支竿的狀 況（彎曲容易度）等的品質參差不一，因此，具有不容易製 造品質均一的製品之問題點。 因此，近年來，竹竿的替代品，將碳纖維或玻璃纖維 作爲強化纖維及纖維強化樹脂而成形的釣竿成爲主流。如 此的纖維強化樹脂所成形的釣竿，因爲並非直接使用如竹 竿的天然物，所以比較上品質均一，同時與竹竿相比，具 有輕量且強度是強的優點，近年來，被使用於幾乎所有的 釣魚中。 但是’由將碳纖維或玻璃纖維作爲強化纖維使用的纖 維強化樹脂所組成的釣竿，會因魚的拉引或魚信等的外力 增加而彎曲，但因爲該外力減少或消失的話，會容易馬上 復元至原來的狀態，所以對於於彎曲的回復是過於機敏， -6 - (2) (2)200303721 其結果，具有反應機械性而缺乏釣感的問題點。 【發明內容】 (本發明所欲解決的課題） 因此，本發明的課題，便在於提供一種可以製造品質 比較均一，且如竹竿，對於彎曲的回復也緩和，且具優秀 釣感的釣竿。 (用以解決課題的手段） 本發明者，是鑑於於上述課題熱感檢討的結果，由作 爲強化纖維的纖維強化樹脂所組成的釣竿中，其強化纖維 若使用從竹抽出預定粗度的纖維的話，與同樣使用玻璃纖 維或碳纖維的情況相比，發現到對於於彎曲的回復動作較 緩和，而完成本發明。 即，爲了解決上述課題，本發明的釣竿，是具備由纖 維強化樹脂所組成的竿管之釣竿，其特徵爲：在前述纖維 強化樹脂中，強化纖維，是含有直徑〇 . 〇 1〜〇 . 5 mm的被鬆 纖的竹纖維。 直徑0·01〜0.5 mm被鬆纖的竹纖維，是通常，彈性率 是收於預定的範圍內’藉由將該纖維作爲強化纖維而使用 預定量，與只使用竹本身的釣竿（竹竿）相比，可以減少因 各竿的狀況等所產生的品質差異。 且’其作用雖不明確，但該強化纖維藉由使用前述竹 纖維之後’因外力的彎曲後，再減少或除去該外力的話， (3) (3)200303721 會一時地呈現些微的塑性，而與使用碳纖維等的情況相比 ，復元於原來的狀態的所需時間較長’對於彎曲的回復較 緩和，而具有優秀釣感。 且，本發明中，竹纖維的直徑，是指：在垂直於軸方 向的剖面上最遠2點間的距離（即最大徑），此値，是從顯 微鏡的剖面照片測量而得。 本發明之中，前述竹纖維，是指向於前述竿管的軸方 向。 春 藉由讓這種結構作用，而可以達成對於彎曲的回復較 緩和的效果，且可以減少因彎曲所產生的完全塑性變形的 憂慮。 進一步，前述竹纖維，經過加熱加工較佳。 藉由將經加熱加工的竹纖維作爲強化纖維使用，就可 形成高彈性且不容易產生完全塑性變形的釣竿。 在此，加熱加工，是指：作爲纖維被抽出之前的竹的 狀態，或在被抽出的纖維的狀態下，不使碳化地加熱而使 · 水分及油分蒸發的加工。 此加熱加工，通常，是在1 5 0〜8 0 0 °C下，加熱數秒（ 具體上，1〜10秒程度）而完成。 在此加熱加工中，在製造例如以碳纖維作爲強化纖維 的纖維強化樹脂所構成的竿管（例如，碳桿）時，爲了藉由 加熱使樹脂硬化而使用煅燒爐也可以。 且，本發明中，前述強化纖維，更具備碳纖維或玻璃 纖維較佳。 -8- (4) (4)200303721 只使用竹纖維的話，大的外力作用的情況時，大的彎 曲發生，而有可能發生永遠無法復元至原來的狀態的塑性 變形的憂慮，但進一步，因爲使強化纖維更具備碳纖維或 玻璃纖維，就可減少這種塑性變形發生的憂慮。 前述碳纖維或玻璃纖維，是指向於周方向較佳。 依據於這種結構，即使因大的彎曲等，使竿管的剖面 從圓形變形成橢圓形，因爲指向於周方向的碳纖維或玻璃 纖維被補強，而變成不易折斷不易斷裂。 φ 【實施方式】 茲佐以圖面說明本發明之釣竿。 本實施形態的釣竿，是例如，如第1圖所示，將複數 的竿管4呈段接式或抽出式連結（第1圖（甲）參照）。 此竿管4，是由纖維強化樹脂成形，且從內側朝向外 側成爲最內層A、中間層B、最外層C的層構造的管狀的 形態（第1圖（乙）參照）。 Φ 且，前述中間層B，具備：配置於外側的外側中間層 B 1、及配置於內側的被內側的中間層B2。 在前述最內層A中，作爲強化纖維的碳纖維（彈性率 15000 〜60000kg f /mm2，通常，彈性率 24000 〜40000 kgf /mm2，以下的碳纖維皆相同）是指向於周方向S1。 在前述內側中間層B 2中，作爲強化纖維的碳纖維是 指向於軸方向S 2。 在前述外側中間層B1中，強化纖維，是由位在竹的 -9- (5) (5)200303721 靭皮部的纖維束及由該纖維束的束所組成的呈直徑0. 〇 1〜 0.5 m m被鬆纖的竹纖維5。 此竹纖維5，例如可使用野村產業公司製的「竹·阿 爾拉特」（商品名）的原料纖維的竹線（竹纖維）。 此竹纖維5，是朝一方向拉齊，並指向於竿管4的軸 方向S2。 在前述最內層A中，作爲強化纖維的碳纖維是指向 於周方向S 1。 _ 接著，對於製造此竿管4的情況，參照第2圖說明之 〇 首先，如第2圖（甲）所示，將使環氧樹脂等含浸於只 有碳纖維1朝一方向地拉齊的薄片體的基質樹脂薄片狀的 預浸料A(以下，有時稱爲「最內層預浸料」），使碳纖維 1指向於周方向S 1地捲在蕊軸3。 且，此最內層預浸料的樹脂含浸量，是通常，被設定 成20〜40重量％。藉由此最內層預浸料A而構成前述最 · 內層A。 接著，同樣地，將使基質樹脂等含浸於只有碳纖維1 朝一方向地拉齊的薄片體的基質樹脂薄片狀的預浸料B2( 以下，稱爲「內側中間層預浸料」），使碳纖維1指向於 周方向S2地捲在最內層預浸料A的外周。 此內側中間層預浸料B2的樹脂含浸量，是通常，被 設定成20〜50重量％。藉由此內側中間層預浸料B2而構 成前述內側中間層B 2。 -10 - (6) (6)200303721 接著，同樣地，將使竹纖維5含浸於在纖維狀態下被 梳且只有碳纖維1朝一方向地拉齊的薄片體的基質樹脂薄 片狀的預浸料B1 (以下，稱爲「竹纖維預浸料」），使竹 纖維指向於周方向S 2地捲在內側中間層預浸料B 2的外 周。 此竹纖維預浸料B1的樹脂含浸量，是通常，被設定 成20〜50重量％。藉由此竹纖維預浸料B1而構成前述中 間層B 1。 接著，如第2圖（乙）所示，將使碳纖維1朝長度方向 拉齊的帶狀的最外層預浸料C，捲成使碳纖維1指向於周 方向S 1。 此最外層預浸料C的樹脂含浸量，是通常，被設定成 20〜50重量％。藉由此最外層預浸料C而構成前述最外層 C 〇 如此在捲有複數的預浸料A、B 2、B 1、C的外周，將 成形用帶（無圖示）一邊適宜壓力調整一邊捲取之後，由預 定的溫度加熱煅燒。 加熱煅燒後，拔除蕊軸3，剝除成形用帶，進一步， 藉由切斷成預定的長度，就可以獲得成形成管狀的竿管4 〇 接著，說明從竹抽出竹纖維5的方法的一例。 首先，從採代的竹去除葉，直接（不裁斷）或裁斷成預 定的長度，經陽光乾燥後，施行加熱加工。 加熱加工，可以採用例如，藉由火烘竹，而將竹以 -11 - (7) (7)200303721 150〜80(TC數秒加熱的方法。 藉由此加熱加工，竹，其含有的水分及油分是蒸發， 而成爲臨近碳化的狀態。 接著，從由加熱加工而乾燥的竹，將使纖維束相互膠 合的果膠可溶性化並加以除去。將果膠可溶性化的方法， 例如，可以採用當從麻將纖維抽出時所採用的發酵法或藥 品法。 藥品法’可例示將竹浸漬於苛性鈉水溶液中並加以加 熱的方法。 接著’進一步，乾燥後，使通過壓延裝置進行打碎。 藉由打碎將竹內周側的木質部破碎除去。 壓延裝置，可以使用習知公知的，例如，滾子方式的 壓延裝置、壓印方式的壓延裝置等。通過滾子方式的壓延 裝置的情況時，使沿著竹纖維5的成長方向地通過，而使 竹沿著成長方向呈束狀割裂。 將此竹藉由纖維再生機鬆纖。藉由調整纖維再生機的 齒的大小、數、回轉速度等，而形成由靭皮部的纖維束或 纖維束的束所組成的預期直徑的竹纖維5。 纖維再生機，可以使用例如，泉南製針所製IM-34型 纖維再生機。 # 且’若鬆纖不充分的情況時，則依據需要使用渦輪硏 磨等’更細地鬆纖使成爲，例如，靭皮部的纖維束或纖維 束的束的直徑爲0.01〜〇.5mm的竹纖維5。 且’本實施形態中，雖是使用使竹纖維5在纖維狀態 -12- (8) (8)200303721 下被梳且朝一方向拉齊的預浸料，但也可以使用例如，藉 由綿紡紗法等而將竹纖維5紡紗成的紡紗線朝一方向拉齊 的預浸料。且，此紡紗線的織物中，使用含浸有基質樹脂 的預浸料的情況也是本發明的意圖範圍內。 且’本實施形態中，竿管4，雖是例示使被挾於最外 層C及最內層A之間的中間層B是2層的4層構造，但 本發明中，竿管4，是幾層的構造皆可以，例如，3層構 造或5層以上也可以。 進一步，本實施形態中，竹纖維5，雖只是被使用作 爲中間層B的強化纖維，但使用作爲最外層C的強化纖 維也在本發明的意圖範圍內，且，使用作爲最外層C的強 化纖維也在本發明的意圖範圍內。 且，對於使複數的竿管4呈段接式或抽出式連結的釣 竿，作爲相互地嵌合連結的竿管4雙方的連結部分4 a、 4a(或只有連結部分4a、4a)的強化纖維，也可以含有竹纖 維5(第1圖參照）。 如此的釣竿中，不只如上述的使釣感變得優秀，且與 碳纖維相較，因爲竹纖維較柔軟，所以連結部分4 a、4 a 的摩耗減少，而可以降低相互弄傷的憂慮。 且，藉由讓竹纖維適度地絨毛立起及形成非圓形度大 的剖面（異形剖面），而可以減少連結部4a、4a彼此的接 觸面積。 段接式的釣竿中，有在公側的連結部4 a塗裝的情況 ，這種情況，母側的連結部4a的強化纖維，藉由使用竹 -13 - (9) (9)200303721 纖維，就不易弄傷公側的塗膜。又，當施行如上述的塗裝 時，在接合時雖會發生吱吱嘎嘎音，但藉由竹纖維就可降 低吱咬嘎嘎音。 (發明之效果） 如以上，本發明的釣竿，與直接使用竹的釣竿（竹竿） 相比，因各竿的狀況等所產生的品質差少，且，該強化纖 維藉由使用竹纖維之後，因外力的彎曲後，再減少或除去 該外力的話，會一時地呈現些微的塑性，而與使用碳纖維 等的情況相比，復元於原來的狀態的所需時間較長，對於 彎曲的回復較緩和，而具有優秀釣感。 【圖式簡單說明】 [第1圖]顯示一實施形態的釣竿，（甲）是槪略側面 圖，（乙）是（甲）的X-X線剖面圖。 [第2圖](甲），（乙）皆是顯示製造同實施形態的竿管 的一過程的槪略立體圖。 [圖號說明] 1…碳纖維，4…竿管，5…竹纖維’ S 1 ···周方向，§ 2 …軸方向。 -14-200303721 (1) 发明. Description of the invention [Technical field to which the invention belongs] The present invention relates to a fishing rod, and in particular, to a fishing rod provided with a rod tube made of a fiber-reinforced resin. [Prior art] Bamboo poles are gently bent. The return to the bend (restored to the original state) is stable, so the fishing feel is good, and a wide variety of bamboo poles are manufactured and sold. However, although bamboo poles are used by directly heating natural bamboo, removing knots, winding and painting, etc., its performance is deeply affected by the degree of bamboo growth and processing methods. Since the quality of the condition (easiness of bending) of each rod varies, there is a problem that it is not easy to produce a product of uniform quality. Therefore, in recent years, fishing rods made of carbon fibers or glass fibers as reinforcing fibers and fiber-reinforced resins have become mainstream as alternatives to bamboo rods. Such a fiber-reinforced resin fishing rod does not use natural materials such as bamboo rods directly, so it is relatively uniform in quality. At the same time, compared with bamboo rods, it has the advantages of light weight and strong strength. In recent years, it has been used in almost all Fishing. However, a fishing rod composed of a fiber-reinforced resin using carbon fiber or glass fiber as a reinforcing fiber may be bent by an external force such as a fish pull or a fish letter. However, if the external force is reduced or disappeared, it will be easily restored immediately. Since it is in the original state, it is too alert for the response to bending. -6-(2) (2) 200303721 As a result, it has the problem of being mechanically responsive and lacking in fishing. [Summary of the Invention] (Problems to be Solved by the Invention) Therefore, the problem of the present invention is to provide a fishing rod that can be manufactured with a relatively uniform quality, such as a bamboo pole, and has a gentle recovery from bending, and has an excellent fishing feeling. (Means to solve the problem) In view of the result of the thermal evaluation of the above-mentioned problem, the inventor of the present invention, in a fishing rod composed of a fiber-reinforced resin as a reinforcing fiber, if the reinforcing fiber uses a fiber with a predetermined thickness extracted from bamboo As compared with the case where glass fiber or carbon fiber is also used, the recovery action for bending is found to be gentler, and the present invention has been completed. That is, in order to solve the above-mentioned problems, the fishing rod of the present invention is a fishing rod provided with a rod tube composed of a fiber-reinforced resin, characterized in that in the fiber-reinforced resin, the reinforcing fiber contains a diameter of 〇. 〇1〜〇. 5 mm pine fiber. Bamboo fibers with a diameter of 0 · 01 ~ 0.5 mm are usually loose, and the elastic modulus is within a predetermined range. By using a predetermined amount of the fiber as a reinforcing fiber, and using only a bamboo fishing rod (bamboo rod) Compared with this, it is possible to reduce the quality difference caused by the condition of each pole. And 'its role is not clear, but after using the aforementioned bamboo fiber' to reduce or remove the external force after bending due to external force, (3) (3) 200303721 will show a slight plasticity for a while, and Compared with the case of using carbon fiber, etc., it takes longer to recover to its original state. Moreover, in the present invention, the diameter of the bamboo fiber refers to the distance (the largest diameter) between two points on the cross section perpendicular to the axial direction, which is measured from a cross-sectional photograph of a microscope. In the present invention, the bamboo fiber is directed in the axial direction of the rod tube. By allowing this structure to work, spring can achieve a more gentle effect on the recovery of bending, and can reduce the worry of complete plastic deformation caused by bending. Further, it is preferable that the aforementioned bamboo fiber is subjected to heat processing. By using the heat-treated bamboo fiber as a reinforcing fiber, it is possible to form a fishing rod that is highly elastic and is unlikely to undergo complete plastic deformation. Here, heat processing refers to the processing of the state of the bamboo before the fiber is extracted, or the state in which the extracted fiber is heated without carbonizing and evaporating moisture and oil. This heat processing is usually completed by heating at 150 to 800 ° C for several seconds (specifically, about 1 to 10 seconds). In this heating process, when a rod tube (for example, a carbon rod) made of a fiber-reinforced resin using carbon fibers as reinforcing fibers is manufactured, a calcining furnace may be used to harden the resin by heating. In the present invention, it is preferable that the reinforcing fiber further includes carbon fiber or glass fiber. -8- (4) (4) 200303721 When only bamboo fiber is used, when large external force is applied, large bending occurs, and there is the possibility of plastic deformation that can never be restored to the original state, but further, because Making reinforcing fibers more carbon or glass can reduce the worry of plastic deformation. It is preferable that the carbon fiber or glass fiber is directed in a circumferential direction. According to this structure, even if the cross section of the rod tube is changed from a circular shape to an elliptical shape due to a large bending or the like, the carbon fiber or glass fiber directed in the circumferential direction is reinforced, making it difficult to break or break. φ [Embodiment] The fishing rod of the present invention will be described with reference to the drawings. The fishing rod of this embodiment is, for example, as shown in Fig. 1, a plurality of pole tubes 4 are connected in a segmented or withdrawn type (see Fig. 1 (a)). The rod tube 4 is formed into a tubular structure of a fiber-reinforced resin and has a layer structure of an innermost layer A, an intermediate layer B, and an outermost layer C from the inside to the outside (refer to FIG. 1 (B)). Φ The intermediate layer B includes an outer intermediate layer B1 disposed on the outer side and an inner intermediate layer B2 disposed on the inner side. In the aforementioned innermost layer A, carbon fibers (elasticity of 15,000 to 60,000 kgf / mm2, usually elasticity of 24,000 to 40,000 kgf / mm2, and the following carbon fibers are the same) as reinforcing fibers are directed in the circumferential direction S1. In the aforementioned inner intermediate layer B 2, the carbon fibers as the reinforcing fibers are directed in the axial direction S 2. 〇1〜 In the aforementioned outer intermediate layer B1, the reinforcing fiber is composed of a fiber bundle located at -9- (5) (5) 200303721 of the bamboo and a bundle of fiber bundles having a diameter of 0. 〇1〜 0.5 mm pine fiber 5. As the bamboo fiber 5, for example, a bamboo thread (bamboo fiber) as a raw material fiber of "Bamboo Allat" (trade name) manufactured by Nomura Industries, Ltd. can be used. The bamboo fibers 5 are aligned in one direction and point in the axial direction S2 of the rod tube 4. In the aforementioned innermost layer A, carbon fibers as reinforcing fibers are oriented in the circumferential direction S 1. _ Next, in the case of manufacturing this pole tube 4, it will be explained with reference to Fig. 2 First, as shown in Fig. 2 (A), an epoxy resin or the like is impregnated into a sheet in which only the carbon fiber 1 is aligned in one direction. The matrix resin sheet-like prepreg A (hereinafter, sometimes referred to as the "inner-layer prepreg") is wound around the core axis 3 with the carbon fiber 1 oriented in the circumferential direction S1. The resin impregnation amount of the innermost prepreg is usually set to 20 to 40% by weight. The aforementioned innermost layer A is constituted by the innermost layer prepreg A. Next, similarly, a matrix resin sheet-like prepreg B2 (hereinafter, referred to as "inside intermediate layer prepreg") is impregnated with a matrix resin or the like in a sheet in which only the carbon fibers 1 are aligned in one direction. 1 is rolled in the circumferential direction S2 on the outer periphery of the innermost prepreg A. The resin impregnation amount of the inner intermediate layer prepreg B2 is usually set to 20 to 50% by weight. The aforementioned inner intermediate layer B 2 is constituted by the inner intermediate layer prepreg B2. -10-(6) (6) 200303721 Next, similarly, the bamboo fiber 5 is impregnated with a matrix resin sheet-like prepreg B1 of a sheet that is combed in a fiber state and only the carbon fiber 1 is aligned in one direction. (Hereinafter, referred to as "bamboo fiber prepreg"), the bamboo fibers are wound in the circumferential direction S 2 and wound around the outer periphery of the inner intermediate layer prepreg B 2. The resin impregnation amount of this bamboo fiber prepreg B1 is usually set to 20 to 50% by weight. The bamboo fiber prepreg B1 is used to constitute the aforementioned intermediate layer B1. Next, as shown in Fig. 2 (B), a strip-shaped outermost prepreg C, in which the carbon fibers 1 are aligned in the longitudinal direction, is wound so that the carbon fibers 1 point in the circumferential direction S1. The resin impregnation amount of the outermost prepreg C is usually set to 20 to 50% by weight. The outermost layer C is constituted by the outermost prepreg C. In this way, the forming tape (not shown) is appropriately pressure-adjusted while the outer periphery of the plurality of prepregs A, B 2, B 1, and C is wound. After being wound up, it is calcined by heating at a predetermined temperature. After heating and calcining, the core shaft 3 is pulled out, and the forming belt is peeled off. Further, by cutting to a predetermined length, a tube-shaped rod tube 4 can be obtained. Next, an example of a method for extracting bamboo fibers 5 from bamboo . First, the leaves are removed from the harvested bamboo and directly (not cut) or cut to a predetermined length. After drying in the sun, heat processing is performed. For the heat treatment, for example, the bamboo can be heated by -11-(7) (7) 200303721 150 ~ 80 (TC for several seconds by baking the bamboo by fire. By this heat treatment, the bamboo contains moisture and The oil content evaporates and becomes close to carbonization. Next, from the bamboo dried by heat processing, the pectin that binds the fiber bundles to each other is dissolved and removed. The method for solubilizing pectin can be, for example, when The fermentation method or the chemical method used when extracting the fibers from mahjong. The chemical method can be exemplified by immersing bamboo in an aqueous caustic soda solution and heating it. Then, further, after drying, it is crushed by a calendering device. Shattering removes and removes the xylem on the inner side of the bamboo. As the rolling device, a conventionally known one can be used, for example, a rolling type rolling device, an embossing type rolling device, etc. In the case of a roller type rolling device, The bamboo fiber 5 was passed along the growing direction of the bamboo fiber 5 and the bamboo was split in a bundle along the growing direction. The bamboo was loosened by a fiber regeneration machine. The fiber regeneration machine was adjusted by Tooth size, number, rotation speed, etc., to form a bamboo fiber with a desired diameter consisting of fiber bundles or fiber bundles of the bast. 5. As a fiber regenerating machine, for example, IM-34 manufactured by Sennan Needle Type fiber regenerating machine. # And 'if the loose fiber is insufficient, use turbine honing, etc. as needed' to loosen the fiber more finely, for example, the diameter of the fiber bundle or the bundle of fiber bundles in the bast is 0.01 to 0.5 mm of bamboo fiber 5. In this embodiment, although a prepreg in which bamboo fiber 5 is combed in a fiber state of -12- (8) (8) 200303721 is drawn in one direction, However, it is also possible to use, for example, a prepreg in which the spinning yarn formed by spinning the bamboo fiber 5 is aligned in one direction by a cotton spinning method or the like. In addition, a fabric impregnated with a matrix resin is used for the fabric of this spinning yarn. The case of prepreg is also within the scope of the present invention. 'In this embodiment, the rod tube 4 is an example in which the intermediate layer B sandwiched between the outermost layer C and the innermost layer A is two layers of four. Layer structure, but in the present invention, the pole tube 4 may have a structure of several layers, for example, a three-layer structure Alternatively, five or more layers may be used. Further, in this embodiment, although the bamboo fiber 5 is used only as the reinforcing fiber of the intermediate layer B, the use of the reinforcing fiber as the outermost layer C is also within the scope of the present invention. It is also within the scope of the present invention to use the reinforcing fiber as the outermost layer C. In addition, for fishing rods in which a plurality of rod tubes 4 are connected in a segmented or withdrawn manner, the two rod tubes 4 are connected to each other by fitting and coupling. The reinforcing fibers of parts 4a and 4a (or only the connecting parts 4a and 4a) may also contain bamboo fiber 5 (refer to Figure 1). In such a fishing rod, not only the fishing feeling is improved as described above, but it is also compatible with carbon fiber. In comparison, because the bamboo fiber is softer, the friction of the connecting portions 4a and 4a is reduced, and the worry of mutual injury can be reduced. In addition, by properly raising the bamboo fibers and forming a non-circular cross-section (shaped cross-section), the contact area between the connecting portions 4a and 4a can be reduced. In the segmented fishing rod, the connection part 4a on the male side may be painted. In this case, the reinforcing fiber of the connection part 4a on the female side uses bamboo-13-(9) (9) 200303721 fiber. , It is not easy to damage the coating film on the male side. In addition, when the coating is performed as described above, although rattling noises occur during bonding, the rattle rattles can be reduced by using bamboo fibers. (Effects of the Invention) As described above, compared with a fishing rod (bamboo rod) using bamboo directly, the fishing rod of the present invention has less quality difference due to the condition of each rod and the like, and after the reinforcing fiber is made of bamboo fiber, After bending due to external force, if the external force is reduced or removed, it will show a slight plasticity for a while. Compared with the case of using carbon fiber, it takes longer to restore the original state, and the recovery of bending is slower. , And has excellent fishing feeling. [Brief description of the drawings] [Fig. 1] A fishing rod according to an embodiment is shown, (a) is a schematic side view, and (b) is a sectional view taken along line X-X of (a). [Fig. 2] (A) and (B) are schematic perspective views showing a process of manufacturing a pole tube of the same embodiment. [Explanation of drawing number] 1 ... carbon fiber, 4 ... rod tube, 5 ... bamboo fiber 'S 1 ··· circumferential direction, § 2 ... axis direction. -14-