200300327 A7 B7 五、發明説明（彳） 【發明所屬的技術領域】 (請先閱讀背面之注意事項再填寫本頁) 本發明是關於連結複數的竿體而成的釣竿，特別是關 於’將主竿與連結於其前側的主上竿以抽出形式連結，藉 由調整其位置關係而可調整釣竿全體的長度的釣竿。 【習知技術】 傳統的抽出形式的釣竿，複數的筒狀的釣竿體是可從 前側的釣竿體開始依序插入到竿根側的釣竿體內。在進行 釣魚時則將各釣竿體依序抽出至前側嵌合固定成爲一支釣 竿體來使用。另一方面，在要收容時則依序將前側的釣竿 體收容至竿根側的釣竿體內而成爲小型化的狀態。 經濟部智慧財產局員工消費合作社印製 在傳統的抽出形式的釣竿，是在主上竿與主竿調整其 位置關係，有用某種方式來使竿體全體的長度變化來釣魚 。以這種方式處理的釣竿的主竿，是在前側端部內周面具 有第一嵌合母部，在竿根側端部內周面具有第二嵌合母部 ，該第一嵌合母部或第二嵌合母部會在主上竿的竿根側端 部及前側的周面分別嵌合。在主上竿被抽出至前側的狀態（ 以下稱作「延伸狀態」），主上竿的嵌合公部是與主竿的第 一嵌合母部嵌合，而在主上竿插入於主竿內的狀態（以下稱 作「收容狀態」），主上竿的嵌合公部是與主竿的第二嵌合 母部嵌合。 這樣一來，主竿與主上竿不管是在「延伸狀態」或「 收容狀態」都可以互相嵌合固定，可因應狀況來變更竿全 體的長度來進行釣魚。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -5- 200300327200300327 A7 B7 V. Description of the invention (彳) [Technical field to which the invention belongs] (Please read the precautions on the back before filling out this page) The present invention relates to fishing rods connected to a plurality of rods, and particularly to the The rod is connected to the main upper rod connected to the front side in a drawn form, and the length of the entire fishing rod can be adjusted by adjusting its positional relationship. [Known technology] In the conventional fishing rod, a plurality of cylindrical fishing rod bodies can be sequentially inserted into the fishing rod body from the fishing rod body on the front side. When fishing, each fishing rod body is sequentially drawn out to the front side to be fitted and fixed to form a fishing rod body for use. On the other hand, when it is to be accommodated, the fishing rod body on the front side is sequentially accommodated in the fishing rod body on the root side, and the size is reduced. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs. In the traditional fishing rod, the positional relationship between the main rod and the main rod is adjusted. There is a way to change the overall length of the rod to fish. The main pole of the fishing rod treated in this way has a first fitting female portion on the inner peripheral surface of the front side end portion and a second fitting female portion on the inner peripheral surface of the root side end portion. The first fitting female portion or The second fitting female part is fitted to the root-side end of the main upper pole and the peripheral surface of the front side, respectively. In the state where the main upper rod is pulled out to the front side (hereinafter referred to as the “extended state”), the fitting male part of the main upper rod is fitted with the first fitting female part of the main rod, and the main upper rod is inserted into the main rod. In the state of the pole (hereinafter referred to as the "receiving state"), the fitting male portion of the main upper pole is fitted into the second fitting female portion of the main pole. In this way, the main pole and the main pole can be fitted and fixed to each other regardless of whether they are in the "extended state" or "contained state", and the entire length of the pole can be changed for fishing according to the situation. This paper size is applicable to China National Standard (CNS) A4 (210X297 mm) -5- 200300327
經濟部智慧財產局員工消費合作社印製 【發明欲解決的課題】 這種抽出形式的釣竿，或者是抽出形式且可藉由主竿 與主上竿的相互關係來調節釣竿全體的長度的形式的釣竿 ’爲了提昇相互的嵌合力，而是把主竿的嵌合母部的內徑 與主上竿的外徑設定成精密地配合。因此，主竿會像活塞 的氣缸般地作用，有時將主上竿從主竿拉出或收容時的空 氣阻力會變得很大，而會妨礙主上竿對主竿的出入動作。 也就是說，主竿是位於最竿根側的大直徑的竿體，雖 也可以形成爲前端較細的筒狀體，而一般來說是單一錐度 或錐度變化很少的竿體。因此，如果把主竿的嵌合母部與 主上竿的嵌合公部的直徑設定得很精密地配合的話，在嵌 合部位以外的地方讓空氣通過的間隙（兩竿體的直徑差）會很 小，所以可能會產生如上述的活塞化的現象。特別是，在 主上竿的前側的竿體，存在有實心的竿體或釣線卡止構件 時，這種情況特別明顯。 這種主竿與主上竿的活塞現象，會導致從安裝於主竿 的竿根側端部的底栓的間隙吸入水或灰塵等的情形，且在 主上竿出入時也會產生奇怪的聲音。 本發明的課題是要提供一種能夠順暢地讓主上竿出入 於主竿的釣竿。 【用以解決課題的手段】 第一發明的釣竿，是具備有：大直徑竿體、與以抽出 訂 (請先閱讀背面之注意事項再填寫本頁) 本纸張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -6 - 200300327 A7 B7 經濟部智慧財產局員工消費合作社印製 五、發明説明（3 ) 形式可自由出入地被連結在大直徑竿體的前側的小直徑竿 體。大直徑竿體，是具有：從前側端部到竿根側其內周面 成爲嵌合母部的嵌合錐桿部分、連續於嵌合錐桿部分的竿 根側且越向竿根側直徑越大的第一錐桿部分、以及連續於 第一錐桿部分的竿根側且越向竿根側直徑越大而傾斜錐度 較第一錐桿部分更小的第二錐桿部分。而小直徑竿體，在 竿根側端部是具有直徑較其他部分更大且可嵌裝於嵌合錐 桿部分的內周面的嵌合公部。 大直徑竿體與小直徑竿體是以抽出形式連結，小直徑 竿體可出入自如於大直徑竿體內。在釣魚時，是將小直徑 竿體拉出到大直徑竿體的前側，再將小直徑竿體的嵌合公 部嵌裝固定到大直徑竿體的嵌合錐桿部分的內周面。而在 收容時，則解除該嵌裝來將小直徑竿體收容到大直徑竿體 內。 大直徑竿體是具有傾斜錐度部分地變得很大的第一錐 桿部分，該第一錐桿部分是讓大直徑竿體的嵌合錐桿部分 與第二錐桿部分的內徑的差異擴大化。藉此，讓大直徑竿 體的第二錐桿部分的內徑與小直徑竿體的外徑（特別是嵌合 公部的外徑）的差異變得很大，讓其間維持有足夠的餘隙。 該餘隙會抑制所謂的活塞化現象。藉由部分地設置第一錐 桿部分，也可防止大直徑的竿體全體的錐度不適當地變得 太大。 第二發明的釣竿，在第一發明的釣竿，其中大直徑竿 體的第二錐桿部分的前側端部的內徑、與小直徑竿體的嵌 (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） 200300327 A7 ___B7 五、發明説明（4 ) 合公部的外徑的差是設定爲0 · 5mm〜1 . 0mm左右 〇 (請先閲讀背面之注意事項再填寫本頁) 在這種釣竿，藉由將預定的直徑的差設定在預定的範 圍，來確保需要且足夠的對大直徑竿體內部的空氣通路。 第三發明的釣竿，在第一或二發明的釣竿，其中大直 徑竿體，其嵌合錐桿部分的錐度爲2/1 0 0 0〜4/ 1000 ，第一錐桿部分的錐度爲2 0/1000〜30 / 1 0 0 0，第二錐桿部分的錐度爲0 . 1 / 1 0 0 0〜 2.0 / 1 0 0 0。 在這種釣竿，藉由將大直徑竿體的各部分的錐度設定 在預定的範圍。藉由依序設定該程度的錐度，來解除大直 徑竿體與小直徑竿體的活塞化。 【發明實施型態】 以下參照圖面來說明本發明的一種實施型態。 【釣竿的全體構造】 經濟部智慧財產局員工消費合作社印製 採用本發明的一種實施型態的釣竿，如第1圖所示， 是具有：主竿1、連結於主竿1的前側的主上竿2、連結 於主上竿2的前側的中竿3、以及連結於中竿3的前側的 前頭細竿4。這些主竿1〜前頭細竿4是由將合成樹脂浸 漬在碳纖維或玻璃纖維等的預浸漬材料所形成的前端較細 的筒狀構件。而且，主上竿2〜前頭細竿4是可從前側出 入自如地依序插入到竿根側的竿體內部，是以所謂的抽出 -8 - 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 200300327 A7 B7 五、發明説明（5 ) 形式來連結。釣竿體的支數是因應需要而以釣竿全體的長 度來作適當設定，並不限定於四支，可以用任何支數。 (請先閲讀背面之注意事項再填寫本頁) 在位於最前側的前頭細竿的前側端部是連結有釣線卡 止構件5。在該釣線卡止構件5是連結著釣線L。釣線卡 止構件5可以用習知的構造，例如，稱作「綁線」的毛線 狀構件、或在筒狀體的內部配置旋轉珠及旋轉體，而可將 釣線卡止於該旋轉體。針對該前頭細竿，爲了小直徑化也 可以使用與其他竿體不相同的實心的竿體。 【主竿1與主上竿2的構造】 這種釣竿的主上竿2與主竿1是不管在延伸狀態或在 收容狀態都可以相互固定。以下是詳細顯示主竿1與主上 竿2的構造。 首先針對主上竿1來加以說明。 經濟部智慧財產局員工消費合作社印製 如第2圖所示，主竿1 ，是全體實施了越向前側直徑 越小的錐桿處理的筒狀體。而且，在竿根側端部是裝卸自 如地安裝有尾栓部6。在主竿1的竿根側端部內部是配置 有螺母構件7，在其前側的內周面是配置有擋環8。尾栓 部6是裝卸自如地螺合於該螺母構件7。 該擋環8在其內周面是具有朝直徑內側方向突出且朝 軸方向延伸的複數的突起部，在該突起部的內周是與主上 竿2的竿根側端部（嵌合公部2 a )的外周面嵌裝著。突起部 的前側端部也可以實施和緩的導角處理。 主竿1 ，詳細來說是由以下的部分變化的各個錐桿部 本紙張尺度適用中國國家標準（CNS )八4規格（210X297公釐） q ' 200300327 A7 __B7 五、發明説明（6 ) 分所構成。如第2圖模式性地顯示，該主竿1 ，是具備有 (請先閱讀背面之注意事項再填寫本頁) :從前側端部到竿根側其內周面成爲嵌合母部的嵌合錐桿 部分1 0、連續於嵌合錐桿部分1 〇的竿根側且越向竿根 側直徑越大的第一錐桿部分1 1、以及連續於第一錐桿部 分1 1的竿根側且越向竿根側直徑越大而傾斜錐度較第一 錐桿部分1 1更小的第二錐桿部分1 2、連續於第二錐桿 部分1 2的竿根側且越向竿根側直徑越大而傾斜錐度較第 二錐桿部分1 2更大的第三錐桿部分1 3、以及連續於第 三錐桿部分1 3的竿根側且越向竿根側直徑越大而傾斜錐 度較第三錐桿部分更小的第四錐桿部分1 4。 嵌合錐桿部分1 〇，是讓後述的主上竿2的嵌合公部 2 a的外周面嵌裝於其內周面的部分。會影響到主竿1的 全體的長度等的構造，例如，當將主竿1全體的軸方向長 度假設爲7 0 0〜8 0 0 m m左右時，例如，其軸方向長 度爲1 0 0〜1 5 Omm左右，錐度是設定爲2/ 1000〜4/1000左右。 經濟部智慧財產局員工消費合作社印製 第一錐桿部分1 1 ，是與嵌合錐桿部分1 0相比是向 竿根側較大程度地擴大直徑的部分。該部分也會影響到主 竿1的全體的長度等，例如，根據上述假設的話，其軸方 向長度爲較短的2 0〜4 0mm左右，錐度是設定爲較大 的20/1000〜3〇/100〇左右。 第二錐桿部分1 2，與第一錐桿部分1 1相比是較平 緩地向竿根側擴大直徑的部分。第二錐桿部分1 2也可以 設定成錐度幾乎沒有變化的直桿部。該部分也會影響到主 -10- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 200300327 A7 B7 五、發明説明（7 ) (請先閲讀背面之注意事項再填寫本頁) 竿1的全體的長度等，例如，根據上述假設的話’其軸方 向長度爲佔有主竿1的主要部分的較長的3 0 0〜5 〇 〇 mm左右，錐度是設定爲較小的0 · 1/1 0 0 〇〜2/ 1000左右。其錐度最好是1·0/1〇〇〇〜1·5 / 1〇〇〇。 第三錐桿部分1 3，與第二錐桿部分1 2相比是較大 程度地向竿根側擴大直徑的部分。根據上述假設的話’其 軸方向長度爲較短的2 0〜5 〇mm左右，錐度是設定爲 較大的3 0/1 0 0 0〜4 0/1 0 0 0左右。而在該第 三錐桿部分1 3的軸方向兩端，爲了緩和地保持連續著的 第二錐桿部分1 2及後述的第四錐桿部分1 4的連續性， 也可以在軸方向設定緩和的曲面。 經濟部智慧財產局員工消費合作社印製 第四錐桿部分1 4，與第三錐桿部分1 3相比是較小 程度地向竿根側擴大直徑的部分。根據上述假設的話，其 軸方向長度爲較短的1 0〜3 0mm左右，是設定爲幾乎 沒有錐度的0·1/1000〜1·0/1000左右， 或是設定爲直桿部。在該第四錐桿部分1 4，是配置有上 述的螺母構件7及擋圈8。 以下針對主上竿2來加以說明。 如第3圖模式性地詳細顯示，主上竿2，與主竿1同 樣地，是實施了前端較細的錐桿處理的筒狀體。其竿根側 端部外周面是形成爲直徑較其他部分更大，其竿根側端部 外周面是作爲嵌合公部2 a。在主上竿2的竿根側端部也 可因應需要配置底栓部9。該嵌合公部2 a，例如是藉由 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X297公釐） -11 . 200300327 A7 __ B7_ 五、發明説明（8 ) (請先閱讀背面之注意事項再填寫本頁) 部分地再積疊上預浸漬材料使其大直徑化的方法、或與主 竿1同樣地在竿根側端部部分地形成設有錐度變化的部分 來將其大直徑化的方法而形成的。而且，該嵌合公部2 a 的外徑，爲了要合乎上述主竿1的嵌合錐桿部1 〇的內徑 與擋環7的內徑，因應需要來設定錐度變化（參照第4圖）。 該主上竿2的竿根側端部的外徑（0 B )、與主竿1的第 二錐桿部分1 2的前側端部的內徑（0 A )的差，最好是設定 爲5 m m以上較佳。 在主上竿2的更前側的各竿體，是設置有與傳統的抽 出形式的釣竿相同的嵌裝部分。 經濟部智慧財產局員工消費合作社印製 具有這種構造的釣竿，在釣魚時，是將各釣竿體依序 朝前側抽出，當將各釣竿體依序以抽出形式互相嵌裝來作 爲一支釣竿時，則將釣線L連結到釣線卡止構件5來進行 釣魚。而在要收容時，則解除各釣竿體的嵌裝狀態將前側 的釣竿體依序收容至竿根側的釣竿體內而成爲小型化的狀 態。並且，在主竿1與主上竿2，並不是只有從主竿1抽 出主上竿2的狀態（延伸狀態），在收容狀態也可以互相嵌裝 在一起，則可以調整釣竿全體的長度來釣魚。 也就是說，在將主上竿2抽出至主竿1的前側的延伸 狀態，像平常的抽出形式的釣竿，是將主上竿2的嵌合公 部2 a嵌裝固定在主竿1的前側端部的嵌合錐桿部分1 〇 的內周面（參照第3圖）。另一方面，在將主上竿2插入到主 竿1內的收容狀態，是使主上竿2的嵌合公部2 a插入嵌 裝於擋環7 (參照第4圖）。 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） 200300327 A7 _______B7_ 五、發明説明（9 ) (請先閱讀背面之注意事項再填寫本頁) 在主上竿2對主竿1進行出入動作時，主竿1的第一 錐桿部分1 1是把主竿1的嵌合錐桿部分1 0與第二錐桿 部分1 2的內徑的差予以擴大化。藉此，佔有主竿1的大 部分的第二錐桿部分1 2的內徑與主上竿2的外徑（特別是 竿根側端部的最大外徑）的徑差會變大，其間會維持有足夠 的餘隙。該餘隙會抑制所謂的活塞化現象。藉由部分地將 第一錐桿部分1 1的軸方向長度設得較小，則可防止主竿 1全體的錐度變化不當地變大。這樣防止密閉活塞化，則 可以防止主上竿2出入時產生奇怪的聲音、或防止從主竿 1與底栓部6的間隙吸入水或灰塵等的情形 並且，主竿1在竿根側端部，藉由設置部分地擴大直 徑的第三錐桿部分，則可在主竿1的竿根側端部部分地形 成用來收容螺母構件7或擋環8的空間。 【其他實施型態】 經濟部智慧財產局員工消費合作社印製 (a )在上述實施型態中，是說明可調整釣竿全體長度的形式 的釣竿。可是，並不限定於這種形式的釣竿，平常的抽出 形式的釣竿，也可適用本發明。在該情況，第三錐桿部分 1 3〜第四錐桿部分1 4可應需要而省略。 【發明效果】 藉由本發明的釣竿，則可順暢地讓大直徑竿體與小直 徑竿體互相出入。 -13- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 200300327 A7 B7 五、發明説明（1〇 ) 【圖面說明】 第1圖是採用本發明的一種實施型態的釣竿的全體圖 (請先閱讀背面之注意事項再填寫本頁) 〇 第2圖是模式性地顯示第1圖的主竿1的剖面的顯示 圖。 第3圖是第1圖的主竿1與主上竿2的延伸狀態的顯 不圖。 第4圖是第1圖的主竿1與主上竿2的收容狀態的顯 不圖。 【圖號說明】 1 :主竿 2 :主上竿 經濟部智慧財產局員工消費合作社印製 2 a :嵌合公部 7 :尾栓部 1 0 :嵌合錐桿部分 1 1 :第一錐桿部分 1 2 ··第二錐桿部分 1 3 :第三錐桿部分 1 4 :第四錐桿部分 -14- 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐）Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs [Problems to be solved by the invention] This type of extraction rod, or a type of extraction type, can adjust the overall length of the fishing rod through the relationship between the main rod and the main upper rod In order to increase the mutual fitting force, the fishing rod's inner diameter of the fitting female part of the main rod and the outer diameter of the main upper rod are set to precisely match. Therefore, the main pole acts like a cylinder of a piston, and the air resistance when the main upper pole is pulled out of or contained in the main pole may become very large, which may prevent the main upper pole from moving in and out of the main pole. That is, the main pole is a large-diameter pole located on the most root side. Although it can also be formed into a cylindrical body with a thinner tip, it is generally a pole with a single taper or little change in taper. Therefore, if the diameter of the fitting female part of the main rod and the fitting male part of the main upper rod are set to closely match, the clearance for the passage of air outside the fitting portion (the diameter difference between the two rod bodies) It will be small, so the phenomenon of pistonization may occur as described above. This is particularly the case when there is a solid rod body or a fishing line locking member on the rod body on the front side of the main upper rod. This phenomenon of the piston between the main pole and the main upper pole may cause water or dust to be sucked in from the gap between the bottom bolts installed at the root end of the main pole, and a strange phenomenon may occur when the main upper pole enters and exits. sound. An object of the present invention is to provide a fishing rod capable of smoothly passing the main pole in and out of the main pole. [Means to solve the problem] The fishing rod of the first invention is provided with: a large diameter rod body, and a pull out order (please read the precautions on the back before filling out this page) The paper size applies to Chinese national standards (CNS ) A4 size (210X297mm) -6-200300327 A7 B7 Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. 5. Description of the invention (3) The form can be freely connected to the small-diameter rod on the front side of the large-diameter rod. . The large-diameter rod body has a fitting taper portion whose inner peripheral surface becomes a fitting female portion from the front end portion to the root portion side, and a diameter continuing to the root portion side of the fitting taper portion toward the root portion side. The larger first tapered rod portion, and the second tapered rod portion having a smaller taper than the first tapered rod portion and having a larger diameter continuous to the root side of the first tapered rod portion toward the root side. On the other hand, a small-diameter rod body has a fitting male portion having a larger diameter than the other portion and can be fitted on the inner peripheral surface of the fitting tapered rod portion. The large-diameter rod body is connected to the small-diameter rod body in a withdrawn form, and the small-diameter rod body can come in and out of the large-diameter rod body freely. When fishing, the small-diameter rod is pulled out to the front side of the large-diameter rod, and then the fitting part of the small-diameter rod is fitted and fixed to the inner peripheral surface of the fitting cone part of the large-diameter rod. At the time of storage, the mounting was released to accommodate the small-diameter rod into the large-diameter rod. The large-diameter rod body is a first tapered rod portion that has an oblique taper portion that becomes very large. The first tapered rod portion is a difference between the inner diameter of the large-diameter rod body and the second tapered rod portion. Enlargement. Thereby, the difference between the inner diameter of the second tapered rod portion of the large-diameter rod body and the outer diameter of the small-diameter rod body (especially the outer diameter of the fitting male part) becomes large, so that there is sufficient margin in the meantime. Gap. This clearance suppresses the so-called pistoning phenomenon. By partially providing the first tapered rod portion, it is possible to prevent the taper of the entire large diameter rod body from becoming unduly large. The fishing rod of the second invention is the fishing rod of the first invention, wherein the inner diameter of the front end of the second cone portion of the large diameter rod body and the embedment of the small diameter rod body (please read the precautions on the back before filling in this Page) This paper size is in accordance with Chinese National Standard (CNS) A4 specification (210 X 297 mm) 200300327 A7 ___B7 V. Description of the invention (4) The difference in the outer diameter of the common part is set to about 0 · 5mm ~ 1.0mm 〇 (Please read the precautions on the back before filling this page) In this fishing rod, by setting the difference in the predetermined diameter within a predetermined range, it is necessary to ensure the necessary and sufficient air passage to the inside of the large diameter rod body. The fishing rod of the third invention is the fishing rod of the first or second invention, wherein the taper of the large diameter rod body is 2/1 0 0 0 to 4/1000, and the taper of the first tapered rod is 2 0/1000 ~ 30/1 0 0 0, the taper of the second tapered rod part is 0.1 / 1 0 0 0 ~ 2.0 / 1 0 0 0. In such a fishing rod, the taper of each part of the large-diameter rod body is set within a predetermined range. By sequentially setting the degree of taper, the pistonization of the large-diameter rod and the small-diameter rod is released. [Inventive embodiment] An embodiment of the present invention will be described below with reference to the drawings. [The overall structure of the fishing rod] The employee's cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs has printed a fishing rod adopting an embodiment of the present invention. As shown in FIG. 1, the fishing rod includes: The upper pole 2, the middle pole 3 connected to the front side of the main upper pole 2, and the front thin pole 4 connected to the front side of the middle pole 3. These main rods 1 to 4 are thin cylindrical members formed by impregnating a synthetic resin with a prepreg such as carbon fiber or glass fiber. In addition, the main upper rod 2 to the front thin rod 4 can be inserted from the front side into the rod body at the root side in order. It is so-called withdrawn-8-This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 200300327 A7 B7 V. Description of the invention (5) The form is linked. The number of fishing rod bodies is appropriately set based on the entire length of the fishing rod as required, and is not limited to four, and any number can be used. (Please read the precautions on the back before filling out this page.) The fishing rod retaining member 5 is connected to the front end of the front rod on the foremost side. The fishing line locking member 5 is connected to the fishing line L. The fishing line locking member 5 can have a conventional structure, for example, a wool-like member called a "tether" or a rotating bead and a rotating body arranged inside the cylindrical body, and the fishing line can be locked in this rotation. body. In order to reduce the diameter of the front rod, a solid rod body different from other rod bodies may be used. [Structure of the main pole 1 and the main upper pole 2] The main upper pole 2 and the main pole 1 of this fishing rod can be fixed to each other regardless of the extended state or the accommodated state. The following shows the structure of the main pole 1 and the main upper pole 2 in detail. First, the main pole 1 will be described. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs As shown in Figure 2, the main rod 1 is a cylindrical body that has been treated with a tapered rod with a smaller diameter toward the front. A tail bolt portion 6 is detachably attached to the root-side end portion. A nut member 7 is arranged inside the root-side end of the main pole 1, and a stop ring 8 is arranged on the inner peripheral surface of the nut member 7. The tail bolt portion 6 is detachably screwed to the nut member 7. The retaining ring 8 has a plurality of protrusions on its inner peripheral surface that protrude toward the inner side of the diameter and extend in the axial direction. The inner periphery of the retaining ring 8 is connected to the root-side end of the main upper pole 2 (fitting male The outer peripheral surface of the part 2 a) is fitted. The leading end portion of the protruding portion may be subjected to a gentle lead angle treatment. The main pole 1 is, in detail, changed from the following part of each tapered rod section. The paper size of this paper applies to the Chinese National Standard (CNS) 8 4 specifications (210X297 mm) q '200300327 A7 __B7 V. Description of the invention (6) Make up. As shown in Figure 2, the main rod 1 is provided (please read the precautions on the back before filling this page): from the front end to the root side, the inner peripheral surface of the main rod becomes a fitting female part. Closed taper section 10, first taper section 11 continuous to the root side of the fitted taper section 10 and the diameter increasing toward the root side, and rods continuous to the first taper section 11 Root side and the greater the diameter of the root side, the larger the diameter and the inclined taper is smaller than the first tapered rod portion 1 1 The second tapered rod portion 1 2, continuous to the root side of the second tapered rod portion 1 2 and more toward the rod The larger the diameter of the root side, the larger the taper angle of the second tapered rod portion 12 is the third tapered rod portion 1 3, and the third tapered rod portion 13 is continuous to the root side of the third tapered rod portion and the larger the diameter is toward the root side The fourth tapered rod portion 14 has a smaller taper than the third tapered rod portion. The fitting tapered rod portion 10 is a portion where the outer peripheral surface of the fitting male portion 2a of the main upper rod 2 described later is fitted to the inner peripheral surface. It affects the structure of the entire length of the main rod 1, for example, when the length in the axial direction of the entire main rod 1 is assumed to be about 70 to 80 mm, for example, the length in the axial direction is 100 to About 15 Omm, the taper is set to about 2/1000 ~ 4/1000. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs, the first tapered rod portion 1 1 is a portion having a larger diameter toward the root side than the fitted tapered rod portion 10. This part also affects the overall length of the main rod 1. For example, according to the above assumption, the length in the axial direction is about 20 to 40 mm, and the taper is set to 20/1000 to 3. / 100〇 or so. The second tapered rod portion 12 is a portion whose diameter is gradually enlarged toward the root side compared to the first tapered rod portion 1 1. The second tapered rod portion 12 can also be set as a straight rod portion with almost no change in taper. This part will also affect the main -10- This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) 200300327 A7 B7 V. Description of the invention (7) (Please read the precautions on the back before filling this page) For example, according to the above assumption, the length of the entire rod 1 is “the axial length is about 3 0 to 5 mm long which occupies the main part of the main rod 1 and the taper is set to a small 0.” 1/1 0 0 〇 ~ 2/1000. The taper is preferably from 1.0 / 1000 to 1.5 / 1000. The third tapered rod portion 13 is a portion having a larger diameter toward the root side than the second tapered rod portion 12. According to the above assumption, the length in the axial direction is about 20 to 50 mm, and the taper is set to about 3 0/1 0 0 0 to 4 0/1 0 0 0. In addition, at both ends of the third tapered rod portion 13 in the axial direction, in order to gently maintain the continuity of the continuous second tapered rod portion 12 and the fourth tapered rod portion 14 to be described later, it may be set in the axial direction. Toned surface. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs, the fourth cone portion 14 is a portion that is enlarged to the root side to a smaller extent than the third cone portion 13. Based on the above assumptions, the length in the axial direction is about 10 to 30 mm, which is set to about 0.1 / 1000 to 1.0 / 1000 with almost no taper, or to a straight shaft. The fourth tapered rod portion 14 is provided with the nut member 7 and the retaining ring 8 described above. The main pole 2 will be described below. As shown in FIG. 3 in detail, the main upper rod 2 is a cylindrical body that has been treated with a tapered rod having a thinner tip in the same way as the main rod 1. The outer peripheral surface of the root-side end portion is formed to have a larger diameter than the other portions, and the outer peripheral surface of the root-side end portion is used as the fitting male portion 2a. A bottom bolt portion 9 may be provided at the root-side end of the main upper pole 2 as needed. The fitting male part 2 a is, for example, the Chinese national standard (CNS) A4 specification (210 X297 mm) is applied by this paper size. -11. 200300327 A7 __ B7_ V. Description of the invention (8) (Please read the note on the back first Please fill in this page again) Method of partially stacking the prepreg material to make it larger in diameter, or in the same way as the main rod 1, forming a part with a taper change at the end of the root side to increase its diameter Formed by the method of transformation. In addition, the outer diameter of the fitting male portion 2 a is set to change the taper as necessary in order to conform to the inner diameter of the fitting tapered rod portion 10 of the main rod 1 and the inner diameter of the retaining ring 7 (see FIG. 4). ). The difference between the outer diameter (0 B) of the root-side end of the main upper rod 2 and the inner diameter (0 A) of the front-side end of the second tapered rod portion 12 of the main rod 1 is preferably set to 5 mm or more is preferred. Each of the rod bodies on the front side of the main upper rod 2 is provided with the same fitting portion as a conventional fishing rod of the extraction type. The consumer cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs prints fishing rods with this structure. When fishing, the fishing rod bodies are sequentially pulled out toward the front side. When the fishing rod bodies are sequentially inserted in the form of extraction, they are used as a fishing rod. At this time, the fishing line L is connected to the fishing line locking member 5 and fishing is performed. On the other hand, when the fishing rod body is to be accommodated, the fitted state of each fishing rod body is released, and the fishing rod body on the front side is sequentially accommodated in the fishing rod body on the root side to become a miniaturized state. In addition, the main pole 1 and the main upper pole 2 are not only in a state where the main upper pole 2 is pulled out from the main pole 1 (extended state). They can also be fitted together in the storage state, and the length of the entire fishing rod can be adjusted. fishing. In other words, in the extended state where the main upper pole 2 is drawn out to the front side of the main pole 1, like the usual draw-out fishing rod, the fitting male part 2a of the main upper pole 2 is fitted and fixed to the main pole 1. The inner peripheral surface of the fitting tapered rod portion 10 at the front end portion (see FIG. 3). On the other hand, in the storage state in which the main upper rod 2 is inserted into the main rod 1, the fitting male part 2a of the main upper rod 2 is inserted into the retaining ring 7 (see FIG. 4). This paper size applies to Chinese National Standard (CNS) A4 specification (210 X 297 mm) 200300327 A7 _______B7_ V. Description of the invention (9) (Please read the notes on the back before filling this page) On the main pole 2 pairs of main poles When the 1 is in and out, the first tapered rod portion 11 of the main rod 1 enlarges the difference between the inner diameters of the fitted tapered rod portion 10 of the main rod 1 and the second tapered rod portion 12. As a result, the diameter difference between the inner diameter of the second tapered rod portion 12 that occupies most of the main rod 1 and the outer diameter of the main upper rod 2 (especially the maximum outer diameter of the root-side end portion) becomes large, and during this Sufficient clearance will be maintained. This clearance suppresses the so-called pistoning phenomenon. By partially setting the axial length of the first tapered rod portion 11 to be small, it is possible to prevent the taper variation of the entire main shaft 1 from becoming unduly large. In this way, preventing the piston from being closed, it is possible to prevent strange sounds when the main upper rod 2 enters and exits, or to prevent water or dust from being sucked in from the gap between the main rod 1 and the bottom bolt portion 6. By providing a third tapered rod portion having a partially enlarged diameter, a space for accommodating the nut member 7 or the retaining ring 8 can be partially formed at the root end portion of the main rod 1. [Other implementation types] Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs (a) In the above implementation types, it is a type of fishing rod that can be adjusted for the entire length of the fishing rod. However, the present invention is not limited to a fishing rod of this type, and a fishing rod of a common extraction type can also be applied. In this case, the third tapered rod portion 13 to the fourth tapered rod portion 14 may be omitted as necessary. [Effects of the Invention] With the fishing rod of the present invention, a large-diameter rod body and a small-diameter rod body can smoothly enter and leave each other. -13- This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) 200300327 A7 B7 V. Description of the invention (10) [Illustration of the drawing] Figure 1 is a fishing rod adopting an implementation form of the present invention The whole picture (please read the precautions on the back before filling in this page). Figure 2 is a display diagram that schematically shows the cross section of the main rod 1 in Figure 1. Fig. 3 is a view showing an extended state of the main pole 1 and the main upper pole 2 in Fig. 1. Fig. 4 is a view showing the accommodation state of the main pole 1 and the main upper pole 2 of Fig. 1; [Illustration of drawing number] 1: Main pole 2: Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs of the main pole 2 a: Fitting department 7: Tail bolt 1 0: Fitting cone part 1 1: First cone Rod part 1 2 ·· Second tapered rod part 1 3: Third tapered rod part 1 4: Fourth tapered rod part -14- This paper size applies to China National Standard (CNS) A4 specification (210X297 mm)