200401606 (1) 玖、發明說明 【發明所屬的技術領域】 本發明是關於搭載了所謂的伸縮機構的釣竿’詳細來 說，是關於構成釣竿的主節與主上節的保持機構。 【先行技術】 釣竿，一般來說是由複數的棒狀的釣竿構成構件所構 成。各釣竿構成構件，由外徑較小的構件開始依序稱爲第 一節、第二節。各節一般來說是形成爲具有錐桿的中空管 狀。可是，有時只有第一節或第一節的其中一部分是形成 爲實心棒狀。 第一節的後端部是連結在第二節的前端部，第二節的 後端部是連結在第三節的前端部，以這樣的方式讓各節相 鄰而與其他節互相接續。各節之間的接續形式，有抽出 式、連接式、接續式等各式各樣。這裡特別將外徑最大的 節稱作「主節」，將連結在主節的前端部的節稱作「主上 節」。 有時會由於釣竿的種類具有其規定長度（例如磯釣竿 是變化5 · 3 m的機構（稱作伸縮機構））。該伸縮機構， 是以預定的卡合力讓主上節相對地被卡合保持於主節，當 需要時，會解除其卡合讓主上節成爲拉出於主節的狀態。 藉由該伸縮機構，以主節的長度部份來伸縮釣竿全體的長 度。 第1 0圖，是具備有一般的伸縮機構的釣竿的後端部 -4- (2) (2)200401606 份的放大剖面圖’是詳細圖示了主上節對於主節的保持構 造。 伸縮機構’如同圖所示，是具備有主節1與主上節3 的保持機構。也就是說，伸縮機構，具備有環狀的嵌合構 件2 ’將其嵌入於主節1的後端部的內側。該嵌合構件2 的內徑’是對應於主上節3的後端部的外徑。而參照圖號 4 ’是顯示嵌入於嵌合構件2的栓構件。 在這種構造中，當主上節3已經收容在主節1內時 (也就是，在實際釣魚時釣竿的全長縮短時），主上節3的 後端部會被壓入嵌合構件2的內部，藉此，是以預定的卡 合力（嵌合力）來把主上節3卡合保持於主節1。而當主上 節3相對於主節1拉出時（也就是，在實際釣魚時釣竿的 全長增長時），藉由將主節1朝軸方向（圖中右側）拉伸讓 兩者的嵌合脫離，相對於主節1將主上節3相對性地拉出 (主上節3與主節1的相對伸縮動作，是藉由釣者來進行 的，這種操作稱爲「伸縮操作」）。 在這種伸縮機構中，由於是把嵌合構件2嵌入到主節 1的內側的構造，所以在主節1與主上節3之間，-$ f 產生嵌合構件2的厚度d的尺寸程度的間隙。 【發明內容】 〔發明欲解決的課題〕 弟1 1圖是圖不當主上卽3被收谷在主節1內時兩者 的位置關係。 -5- (3) (3)200401606 如同圖所示，當主上節3卡合於主節1時，首先，會 抵接（衝撞）到嵌合構件2的前端。通常，在嵌合構件2的 前端面，形成有如圖所示的導引面5。藉此，主上節3 ， 會被導引到嵌合構件2的內部，會與主節1卡合。 可是，在製造嵌合構件方面，其前端部要形成爲完全 尖狀的形狀非常的困難，通常要設定〇 · 5mm左右程度 的厚度t 。 因此，在把主上節3收容在主節1時，有時主上節3 的後端面6會衝撞到嵌合構件2的前端面7。特別是在主 節1的錐度較大的情況（也就是說，主節的前端部外徑與 後端部外徑的差異很大，上述尺寸cl很大的情況），兩者 會非常容易產生衝撞。 主上節3的後端面6與嵌合構件2的前端面7的衝 撞，雖然不會對釣竿的機能產生不好的影響，而如果從釣 竿的使用者方面來看，在進行伸縮操作時，會讓衝擊傳達 到手上，會成爲具有不調和感的操作。 因此，本發明的目的，是要提供沒有不調和感且可進 行順暢的伸縮操作的釣竿。 〔用以解決課題的手段〕 (1)爲了達成上述目的，本發明的釣竿，是具備有： 設置成可在主上節被收容於主節的收容位置與突出的突出 位置之間相對性地變化位置，且在各位置主上節是相對性 地被保持於主節的伸縮機構之釣竿，在該主上節的後端部 -6- (4) (4)200401606 是設置有用來覆蓋上述主上節的後端面的衝擊吸收構件。 藉由該構造，當主上節變化位置到收容位置時，（釣 魚者使位置變化的操作，特別稱作「收縮操作。」）即使 主上節的後端部抵接（衝撞）到主節的後端部的內側一定的 部位’由於衝擊吸收構件是覆蓋著主上節的後端面，所以 會緩和衝擊時的衝擊。 在上述主上節的後端面外緣部，形成有C面也可以。 在該構造中，即使當進行收縮操作時主上節的後端部 衝撞到主節的上述的一定的部位，也可藉由c面更緩和該 衝擊力。 (2)爲了達成上述目的，本發明的釣竿，是具備有： 設置成可在主上節被收容於主節的收容位置與突出的突出 位置之間相對性地變化位置，且在各位置主上節是相對性 地被保持於主節的伸縮機構之釣竿，在上述主節的後端部 設置有當上述主上節變化位置到上述收容位置時會插入嵌 合該主上節的後端部的嵌合構件，該嵌合構件，具備有用 來導引上述主上節的嵌合的嵌合導引面，上述主節，具備 有：當上述主上節變化位置到收容位置時，用來將上述主 上節的後端面導引至上述嵌合導引面的滑動導引面。 藉由該構造，由於主節具備有滑動導引面，所以當主 上節變化位置到收容位置時，主上節的後端部，會被嵌合 構件的嵌合導引面導引。被該嵌合導引面所導引的主上節 的後端部，會藉由嵌合導引面順暢地嵌合於主節。也就是 說’當進行收縮操作時，即使主上節的後端部抵接（衝撞） (5) (5)200401606 到主節的後端部的內側等一定的部位，在衝突時也不會產 生很大的衝撞力。 上述滑動導引面，藉由上述主節的內壁面所構成也可 以。 在該構造中，由於主節的內壁面是兼作上述滑動導引 面，所以不需要構成 '滑動導引面的特別的構件。藉此’能 將釣竿簡化’則可實現釣竿的輕量化、及廉價化。 【實施方式】 以下參照圖面，根據較佳的實施方式來詳細說明本發 明。 <第一實施方式> 第1圖是本發明的第一實施方式的釣竿1 〇的正面 圖。釣竿1 0的槪略構造如下述。 該釣竿1 〇 ’是所謂的內導引式的抽出式釣竿。釣竿 1 〇，是藉由第一節1 1〜第五節1 5所構成，是搭載有 第四節1 4 (也就是主上節1 4 )相對於第五節1 5 (也就 是主節1 5 )進行伸縮的伸縮機構。各節1 1〜1 5 ，是 將碳纖維當作材料形成爲中空管狀，是藉由習知的製造方 法所構成。 第一節1 1是可自由抽出地被收容在第二節1 2的內 部。在第一節1 1的前端，是設置有用來導出釣線的頂導 座1 6。第一節1 1的外徑是形成爲錐桿狀，相較於前端 -8- 200401606200401606 (1) 发明 Description of the invention [Technical field to which the invention pertains] The present invention relates to a fishing rod equipped with a so-called telescopic mechanism. Specifically, the present invention relates to a holding mechanism constituting a main section and a main upper section of a fishing rod. [Advanced technology] Fishing rods are generally composed of plural rod-shaped fishing rod components. Each fishing rod constitutes a component, and the components with a smaller outer diameter are sequentially referred to as the first section and the second section. Each section is generally formed into a hollow tube shape with a tapered rod. However, sometimes only the first section or a part of the first section is formed into a solid rod shape. The rear end of the first section is connected to the front end of the second section, and the rear end of the second section is connected to the front end of the third section. In this way, the sections are adjacent to each other and connected to each other. There are various forms of connection between various sections, such as draw-out type, connection type, and connection type. Here, the section with the largest outer diameter is particularly referred to as the "main section", and the section connected to the front end of the main section is referred to as the "main section". Depending on the type of fishing rod, it may have a predetermined length (for example, a rock fishing rod is a mechanism that changes by 5 · 3 m (called a telescopic mechanism)). This telescoping mechanism allows the main upper section to be relatively locked and held at the main section with a predetermined engaging force, and when necessary, releases the engagement so that the main upper section is pulled out of the main section. With this telescopic mechanism, the entire length of the fishing rod is extended and contracted by the length of the main section. Fig. 10 is an enlarged sectional view of a rear end portion of a fishing rod provided with a general telescopic mechanism. -4- (2) (2) 200,401,606 'is an enlarged sectional view showing the main upper section holding structure of the main section. As shown in the figure, the telescopic mechanism 'is a holding mechanism having a main section 1 and a main upper section 3. That is, the telescopic mechanism is provided with a ring-shaped fitting member 2 'to be fitted inside the rear end portion of the main joint 1. The inner diameter of the fitting member 2 corresponds to the outer diameter of the rear end portion of the main upper section 3. In addition, reference numeral 4 'shows a plug member fitted in the fitting member 2. As shown in FIG. In this configuration, when the main upper section 3 is already housed in the main section 1 (that is, when the length of the fishing rod is shortened in actual fishing), the rear end portion of the main upper section 3 is pressed into the fitting member 2 As a result, the main upper section 3 is engaged and held at the main section 1 with a predetermined engaging force (fitting force). And when the main upper section 3 is pulled out relative to the main section 1 (that is, when the full length of the fishing rod is increased during actual fishing), the main section 1 is stretched in the axial direction (right side in the figure) to make the two parts embedded. Close and detach, pull the main upper section 3 relative to the main section 1 (the relative telescopic action of the main section 3 and the main section 1 is performed by the angler, this operation is called "telescopic operation" ). In this telescopic mechanism, since the fitting member 2 is embedded in the inside of the main section 1, between the main section 1 and the main upper section 3,-$ f produces a dimension of the thickness d of the fitting member 2. Degree of clearance. [Summary of the Invention] [Problems to be Solved by the Invention] Brother 1 1 is a diagram showing the positional relationship between the two when the main upper part 3 is received in the main part 1 when the main part is improper. -5- (3) (3) 200401606 As shown in the figure, when the main upper section 3 is engaged with the main section 1, first, it will abut (collision) to the front end of the fitting member 2. Generally, a guide surface 5 is formed on the front end surface of the fitting member 2 as shown in the figure. Thereby, the main upper section 3 is guided into the fitting member 2 and is engaged with the main section 1. However, it is very difficult to form the tip of the fitting member into a completely pointed shape, and it is usually necessary to set a thickness t of about 0.5 mm. Therefore, when the main upper section 3 is housed in the main section 1, the rear end surface 6 of the main upper section 3 may collide with the front end surface 7 of the fitting member 2. Especially when the taper of the main section 1 is large (that is, the difference between the outer diameter of the front end portion and the outer diameter of the main portion is large, and the above-mentioned size cl is large), the two will be very easy to produce. Crash. The collision between the rear end surface 6 of the main upper section 3 and the front end surface 7 of the fitting member 2 does not adversely affect the function of the fishing rod. However, from the perspective of the user of the fishing rod, during the telescopic operation, The impact will be transmitted to the hands, and it will become an operation with a sense of incongruity. It is therefore an object of the present invention to provide a fishing rod that can perform smooth telescopic operation without a sense of discomfort. [Means for Solving the Problems] (1) In order to achieve the above object, the fishing rod of the present invention is provided with: a relative position between a storage position where the main upper section is accommodated in the main section and a protruding position protruding relatively; The main upper section is a fishing rod of a telescopic mechanism which is relatively held by the main section at each position. At the rear end of the main upper section, -6- (4) (4) 200401606 is provided to cover the above. Impact absorbing member at the rear end face of the main upper section. With this structure, when the main upper section changes position to the storage position, (the operation of the angler to change the position, particularly called "retracting operation.") Even if the rear end of the main upper section abuts (bumps) to the main section Since the impact absorbing member covers the rear end surface of the main upper section, the inner portion of the rear end portion of the rear end portion is reduced, so that the impact during the impact can be reduced. The C-plane may be formed on the outer edge portion of the rear end surface of the main upper section. In this structure, even when the rear end portion of the main upper section collides with the above-mentioned fixed portion of the main section when the retracting operation is performed, the impact force can be more alleviated by the c-plane. (2) In order to achieve the above object, the fishing rod of the present invention is provided with: a position that is relatively changeable between a storage position where the main upper section is accommodated in the main section and a protruding position protruding from the main section; The upper section is a fishing rod that is relatively held by the telescopic mechanism of the main section. A rear end of the main section is provided with a rear end of the main upper section that is inserted and fitted when the main upper section changes position to the receiving position. The fitting member is provided with a fitting guide surface for guiding the fitting of the main upper section. The main section is provided when the main upper section is changed to the storage position. To guide the rear end surface of the main upper section to the sliding guide surface of the fitting guide surface. With this structure, since the main section is provided with a sliding guide surface, when the main upper section is changed to the storage position, the rear end portion of the main upper section is guided by the fitting guide surface of the fitting member. The rear end portion of the main upper section guided by the fitting guide surface is smoothly fitted to the main section by the fitting guide surface. In other words, when the retracting operation is performed, even if the rear end of the main upper section abuts (bumps) (5) (5) 200401606 to a certain position such as the inside of the rear end of the main section, it will not Generates a great impact. The sliding guide surface may be constituted by the inner wall surface of the main section. In this structure, since the inner wall surface of the main joint doubles as the sliding guide surface described above, a special member constituting the 'sliding guide surface' is not required. By this, "the fishing rod can be simplified", the fishing rod can be made lighter and cheaper. [Embodiment] Hereinafter, the present invention will be described in detail based on a preferred embodiment with reference to the drawings. < First Embodiment > Fig. 1 is a front view of a fishing rod 10 according to a first embodiment of the present invention. The outline structure of the fishing rod 10 is as follows. This fishing rod 1 0 'is a so-called inner guide type draw-out fishing rod. The fishing rod 10 is composed of the first section 11 to the fifth section 15 and is equipped with a fourth section 14 (that is, the main upper section 1 4) compared to the fifth section 15 (that is, the main section) 1 5) Telescopic mechanism for telescopic. Each section 1 1 to 1 5 is formed into a hollow tube by using carbon fiber as a material, and is constructed by a conventional manufacturing method. The first section 11 is contained inside the second section 12 and is freely withdrawn. At the front end of the first section 11 is a top guide 16 for guiding the fishing line. The outer diameter of the first section 11 is formed into a tapered rod shape, compared with the front end -8- 200401606
直徑，後端直徑是設定成較大。第一節l 1的後端直徑’ 是設定成較第二節1 2的前端直徑更大，當將第一節1 1 從第二節1 2抽出時，第一節1 1的後端部分會與第二節 12的前端部分嚙合讓兩者被固定在一起。 第二節1 2與第三節1 3的關係以及第三節1 3與主 上節1 4的關係是同樣的。在第二節1 2〜主節1 5的前 端部，是安裝有：用來提升該部分的剛性，讓相鄰的節部 的嚙合更確實的環部R1〜R4。 在主上節1 4的前端部分是設置有沒有圖示的釣線導 入孔，安裝有用來將釣線導入該釣線導入孔的導入導座 1 7。上述頂導座1 6及導入導座1 7，由於是習知的構 造，所以省略其詳細說明。 在主節1 5，是一體地形成有捲線器座1 8 °該捲線 器座1 8 ，是可自由裝卸地保持捲線器（沒有圖示）的構 造，是具備有用來收容保持捲線器的腳部的其中一方的罩 部1 9以及用來收容捲線器腳部的另一方的罩構件2 0 ° 罩構件2 0 ，是可沿著載置捲線器的載置面2 1朝圖中左 右滑動，會被固定在與罩部1 9之間挾持捲線器腳部的位 置。而針對捲線器座1 8是已知的構造，所以省略其詳細 說明。 在本實施方式中，雖然是揭示安裝著捲線器的形式的 釣竿，而本發明並不限定於這種形式的釣竿’當然也適用 於溪流用釣竿等的所謂的延伸竿。 接著，上述伸縮機構，如前述是用來使主上節1 4相 -9 - (7) (7)200401606 對於主節1 5進行伸縮的構造。具體來說’主上節1 4 ’ 可在：相對於主節1 5的收容位置（第1圖所示的位置）、 以及從該收容位置突出到圖中左側的突出位置之間變化位 置。在各位置中，主上節1 4 ’是以預定的保持力相對性 地被保持於主節1 5。藉此’釣者則可以在主上節1 4在 收容位置的狀態或突出位置的狀態使用釣竿1 〇 °而用來 保持第四節1 4的保持機構2 2如後述。 在主上節1 4的中間部分，是嵌入有覆蓋其外周的環 部構件2 3。該環部構件2 3 ’當主上節1 4位於收容位 置時，用來防止主上節1 4與主節1 5之間產生晃動，當 主上節1 4在收容位置時，會進入主節1 5的前端內部 (環部R 4的內側）。 如前述，上述的伸縮機構具備有上述保持裝置2 2， 本實施方式的特徵，就是該保持機構2 2的構造。藉由該 保持機構2 2，來進行主上節1 4的保持及解除保持，也 就是順暢地進行主上節1 4相對於主節1 5的伸縮動作 (伸縮操作）。以下，針對保持機構2 2來詳細敘述。 第2圖，是第1圖的釣竿1 0的後端部分（主節1 5 的後端部）的構造，也就是上述保持機構2 2的構造的詳 細顯示圖。 該保持機構2 2，是具備有：嵌入於主節1 5的後端 部內側的嵌合構件2 4、設置於主節1 5的後端的尾栓 2 5、以及設置於主上節1 4的後端的衝擊吸收構件 2 6° -10- (8) (8)200401606 嵌合構件2 4，當主上節1 4成爲收容位置時，會與 主上節1 4的後端部嵌合，以預定的保持力保持住主上節 14° 第3圖，是嵌合構件2 4的立體圖。 嵌合構件2 4，例如，是藉由聚對苯二甲酸丁二醇酯 (P B T )(也含有玻璃纖維）等所構成，全體是形成爲圓筒 狀。嵌合構件2 4的外徑，是對應於主節1 5的後端部的 內徑’是緊緊地嵌入於主節1 5的後端部的內側。嵌合構 件2 4的後端，如第3圖所示，是配置成與主節1 5的後 端一致（所謂的面與面相接成爲一體的狀態）。嵌合構件 2 4，例如是藉由黏接劑等被固定在主節1 5。 在嵌合構件2 4的內側，是設置有嵌合片2 7。在本 實施方式，嵌合片2 7，是與嵌合構件2 4 —體地形成。 嵌合片2 7，也可以用其他構件構成，藉由已知的固定手 段來固定在嵌合構件24。嵌合片27，如同圖所示，是 藉由板狀構件所構成。 在本實施方式中，是設置有6枚嵌合片2 7，是沿著 嵌合構件2 4的內壁面的圓周方向均勻地配置成放射狀。 嵌合片2 7的個數，並沒有特別限定，是設置在3枚〜 1 6枚的範圍。 各嵌合片2 7，是呈現相同的形狀，是立起設置爲突 出於嵌合構件2 4的直徑方向內側。各嵌合片2 7，如第 2圖所示，是形成爲略梯形。具體來說，各嵌合片27， 是平滑地連續於嵌合構件2 4的前端2 8的內壁面，是延 -11 - r ” (9) (9)200401606 伸設置成朝向嵌合構件2 4的直徑方向內側其高度尺寸漸 漸增大’然後，會維持一定的高度尺寸延伸設置向嵌合構 件2 4的軸方向。 、 也就是說，各嵌合片27，是具有：連續於嵌合構件 · 2 4的前端2 8的縮徑部2 9、以及連續於該部的定徑部 30。縮徑部29 ，是從嵌合構件24的前端28朝向軸 方向後方，將該嵌合構件2 4的內徑逐漸縮小所形成，藉 此’縮徑部2 9的上面部形成有傾斜面3 1。該傾斜面 · 3 1 ’當主上節1 4嵌入於主節1 5時，有作爲用來導引 兩者的嵌合的嵌合導引面的機能。 而定徑部3 0，是連續於縮徑部2 9 ，是將嵌合構件 2 4的內徑保持爲一定地形成。定徑部3 0的上面部 3 2 ’是形成爲平行於嵌合構件2 4的軸方向。定徑部 3 0的軸方向尺寸，是設定爲預定尺寸，是作成能確實地 嵌入上述尾栓2 5。 在本實施方式中，嵌合片27的全長L1爲5mm〜 馨 30mm，嵌合構件24的最大內徑D爲10 mm〜35 mm，最小內徑d則是設定爲3mm〜3 3mm。而嵌合 片2 7的全長L 2爲5mm〜3 0mm，定徑部3 0的軸 方向尺寸L 3則是設定爲4mm〜3 〇mm。在釣竿 10，是設定成：Ll = 10 · 〇mm，L2=10 · 〇 mm，L3 = 7 · 〇mm，D=21 · 4mm，d = 17.27mm。 尾栓2 5 ，是形成爲具有段部的圓柱狀，具有小直徑 -12- (10) (10)200401606 部33與大直徑部34。尾栓25，是藉由樹脂、金屬等 所構成。小直徑部3 3的外徑，是對應於上述嵌合構件 2 4的最大外徑D，是緊緊地嵌入於嵌合構件2 4的後端 部。 在本實施方式中，在小直徑部3 3的外周面形成有公 螺紋部，在嵌合構件2 4的後端部內側形成有母螺紋部， 讓尾栓2 5嵌入於嵌合構件2 4。而在小直徑部3 3與大 直徑部3 4的交界部分（具有段部的部分）配設有0形環 35 ’藉此，尾栓25，能確實地鎖入於嵌合構件24， 並且能防止水從外部侵入到釣竿1 〇的內部。 上述小直徑部3 3的軸方向尺寸，是設定爲預定尺 寸。因此’小直徑部33的軸方向端面36，是在主節 1 5的內部配置在預定位置，當主上節丨4嵌入主節1 5 時（收容位置），來進行主上節1 4的定位。 衝擊吸收構件2 6，是嵌入到主上節1 4來覆蓋主上 節1 4的後端面。衝擊吸收構件2 6，例如，藉由N B R (丙烯腈一 丁二烯橡膠）等所構成。 第4圖，是衝擊吸收構件2 6的立體圖，是顯示嵌入 於主上節1 4的狀態。 衝擊吸收構件2 6 ，如同圖所示，是形成爲具有段部 的筒狀，具有嵌入部3 7與凸緣部3 8。嵌入部3 7，是 呈現圓筒狀，其外徑是對應於主上節1 4的後端部的內 徑。因此’嵌入部3 7，是緊緊地嵌入於主上節1 4的內 部。凸緣部3 8，其剖面是形成爲略π字形，是連續於嵌 -13- (11) (11)200401606 入部37 —體地形成。凸緣部38，如第2圖所示，是配 置成圍繞主上節1 4的後端部，以預定的卡合力卡合在該 後端部。 在本實施方式中，衝擊吸收構件2 6 ，厚度尺寸t是 設定爲0 · 5 m m〜1 · 〇 m m。因此，當衝擊吸收構件 2 6被安裝在主上節1 4時，凸緣部3 8的緣部，如第2 圖所示，是從主上節1 4的周面朝向直徑方向突出尺寸 t 。 在本實施方式的釣竿1 0，當釣魚者進行收縮操作讓 主上節1 4變化位置到收容位置時，即使主上節1 4的後 端部衝撞到配置於主節1 5內的嵌合構件2 4的前端 2 8，而由於在主上節1 4設置有上述衝擊吸收構件 2 6 ，藉此來覆蓋主上節1 4的後端面，所以會緩和衝擊 力。特別是主節形成爲具有大錐度的形狀的釣竿，由於主 上節會有與嵌合構件劇烈衝突的傾向，所以效果非常大。 於是，在該釣竿1 0，讓釣魚者可進行不會有不調和 感的伸縮操作。 特別是在本實施方式，衝擊吸收構件2 6，是從主上 節1 4的周面朝向直徑方向突出尺寸t 。因此，當主上節 1 4嵌合於嵌合構件2 4，不會產生間隙。因此，當主上 節1 4變化位置到收容位置時，則主節1 5與主上節1 4 之間不會產生搖晃情形，可以實現剛性感覺的伸縮機構。 另一方面，由於主上節1 4與嵌合構件2 4是經由衝 擊吸收構件2 6嵌合，所以防止兩者固定。於是，釣魚者 -14- (12) (12)200401606 能順暢地進行伸縮操作。 接下來，針對本實施方式的變形例來說明。 第5圖，是本實施方式的第一變形例的釣竿1 〇的主 胃部分放大剖面圖，是詳細顯示主上節1 4的後端部的構 造。 本變形例與上述實施方式不同之處，在上述實施方 式’在主上節1 4的後端部，是嵌入有藉由NBR —體形 成的衝擊吸收構件2 6，相對的，在本變形例，則是讓栓 構件3 9螺合到主上節1 4的後端部。而針對其他構造， 則是與上述實施方式的釣竿1 〇相同。 栓構件3 9 ，如第5圖所示，具有小直徑部4 0與大 直徑部4 1。栓構件3 9，例如是藉由N B R等所構成。 小直徑部4 0，是形成爲圓筒狀，其外徑，是對應於 主上節1 4的後端部的內徑。在小直徑部4 0的周面，形 成有公螺紋部。而大直徑部4 1 ，是連續於小直徑部4 0 來形成。 在主上節1 4的後端部的內面形成有母螺紋部，藉由 讓該母螺紋部與上述公螺紋部螺合，則栓構件3 9會螺合 入主上節1 4。可是，不一定要在小直徑部4 0與主上節 1 4形成上述公螺紋及母螺紋，讓小直徑部4 0嵌入到主 上節1 4的後端部當然也可以。 在大直徑部4 1的外周面及牺面’是安裝有衝擊吸收 構件4 2。該彈性吸收構件4 2，是藉由與上述實施方式 的衝擊吸收構件2 6同樣的材料所構成。衝擊吸收構件 -15- (13) 200401606 4 2，也可藉由塗敷彈性塗料（例如，sen 構成。 藉由安裝衝擊吸收構件4 2，來用衝 覆蓋主上節14的後端面。 於是，即使是與上述實施方式相同的 1 〇，當釣魚者進行收縮操作讓主上節1 容位置時，即使主上節1 4的後端部衝撞 15內的嵌合構件24的前端28，也可 結果，讓釣魚者可進行沒有不調和感的伸 接下來，針對上述實施方式的第二 明。 第6圖是上述實施方式的第二變形例 要部位放大剖面圖，是詳細地顯示了主上 的構造。 本變形例與上述實施方式不同之處在 形成在主上節1 4的後端面外緣部4 3 ， 件4 6，是沿著C面4 4形成。 而在本變形例，衝擊吸收構件4 5， 彈性塗料（例如，sen〇Seft(商品名））所構成 而針對其他構造，是與上述實施方 同。 即使在本變形例，當釣魚者進行收縮 上節1 4的後端部衝撞到配置於主節1 5 2 4的前端2 8，也能緩和該衝擊力。並 〇seft(商品名））所 擊吸收構件4 2 本變形例的釣竿 4變化位置到收 到配置於主節 緩和該衝擊力。 縮操作。 變形例來加以說 的釣竿1 0的重 節1 4的後端部 於，C面4 4是 以及衝擊吸收構 希望是藉由塗敷 〇 式的釣竿1 0相 操作時，即使主 內的嵌合構件 且，由於在主上 -16- (14) (14)200401606 節14形成有上述C面44，能更加緩和衝擊。結果，讓 釣魚者可進行更加沒有不調和感的伸縮操作。 <第二實施方式> 接下來根據本發明的第二實施方式來加以說明。 第7圖是本發明的第二實施方式的釣竿的主要部位放 大剖面圖，第8圖是一部分缺口的狀態的主要部分放大立 體圖。這些圖面詳細顯示了釣竿的伸縮機構所具備的保持 機構2 2的構造。 本實施方式的特徵，相對於在上述第一實施方式，在 主上節1 4設置有衝擊吸收構件2 6 ，在本實施方式中， 在主節1 5形成有當主上節1 4變化位置到收容位置時， 用來將主上節1 4的後端導引至傾斜面2 1的滑動導引面 47。而針對其他構造，是與上述第一實施方式相同。 在本實施方式中，上述滑動導引面4 7，是藉由主節 1 5的內壁面所構成。也就是說，在本實施方式中，主節 1 5的後端部的內側’如第7圖所示，形成有段部4 8。 該段部4 8 ，是藉由在主節1 5的後端部的內側形成大直 徑部4 9與小直徑部5 0所構成。 第9圖，是第7圖的主要部位放大圖，詳細顯示了段 部4 8的部份。 如第9圖所示，雖然在嵌合構件2 4設置有嵌合片 2 7，與第一實施方式同樣的，在嵌合片2 7形成有傾斜 面3 1。該傾斜面3 1 ’是連續於嵌合構件2 4形成，因 -17- (15) (15)200401606 此，嵌合構件2 4的前端部2 4 a ，是傾斜地被截斷成連 續於傾斜面3 1。 段部4 8的落差部尺寸，是設定爲與嵌合構件2 4的 前端部2 4 a的厚度尺寸T相同或較厚度尺寸τ更大。 於是，小直徑部5 0的內徑，是設定爲與上述嵌合構 件2 4的前端部內徑也就是嵌合構件2 4的最大內徑D相 同或較最大內徑D更小。 該段部4 8，當將主節1 5成型時，藉由在芯部的芯 軸形成段部則可容易形成。 在本實施方式中，當釣魚者進行收縮操作將主上節 1 4變化位置到收容位置時，主上節1 4，會被滑動導引 面4 7所導引。此時，上述小直徑部5 0的內徑，是設定 爲與上述嵌合構件2 4的最大內徑D相同或較最大內徑D 更小，所以當主上節1 4的後端部，藉由滑動導引面4 7 所導引時，一定會抵接於嵌合片2 7的傾斜面3 1。該傾 斜面3 1 ，如前述，會有作爲用來導引主上節1 4與主節 1 5的嵌合的嵌合導引面的機能，所以主上節1 4的後端 部，會藉由傾斜面3 1而順暢地嵌合於主節1 5側。 也就是說，當釣魚者進行收縮操作時，即使主上節 1 4的後端部衝撞到嵌合構件2 4的前端部2 8，該衝撞 力也不會很大。特別是形成爲主節具有很大的錐度的形狀 的釣竿，主上節會有與嵌合構件劇烈衝撞的傾向所以效果 非常大。則可以讓釣魚者進行沒有不調和感的伸縮操作。 在本實施方式中，由於滑動導引面4 7是藉由主節 -18- (16) (16)200401606 1 5的內壁面所構成’則不需要另外在主節1 5的內部配 置用來構成滑動面4 7的構件。藉此，能讓主節丨5的構 造簡化，優點是不會提昇釣竿全體的製造成本。 滑動導引面4 7 ’當然也可以藉由將所需要的導引構 件安裝在主節15內來構成。 在本實施方式’也可以將上述第一實施方式所示的c 面形成在主上節1 4的後端面外緣部4 3。藉由形成c 面’則主上節1 4與嵌合構件2 4衝撞時的衝擊力，能更 有效地被抑制’優點是可進行更沒有不調和感的伸縮操 作。 〔發明效果〕 藉由以上的本發明，當釣魚者進行收縮操作時，即使 在主節與主上節產生衝撞時，也不會有衝擊力。於是，讓 釣魚者能進行沒有不調和感的伸縮操作。 【圖式簡單說明】 第1圖是本發明的第一實施方式的釣竿的正面圖。 第2圖，是本發明的第一實施方式的釣竿的後端部分 (主節的後端部）的構造的詳細顯示圖。 第3圖，是本發明的第一實施方式的釣竿的嵌合構件 的立體圖。 第4圖，是本發明的第一實施方式的釣竿的衝擊吸收 構件的立體圖。 -19- (17) (17)200401606 第5圖’是本發明的第一實施方式的第一變形例的釣 竿的主要部分放大剖面圖。 第6圖’是本發明的第一實施方式的第二變形例的釣 · 竿的重要部位放大剖面圖。 - 第7圖是本發明的第二實施方式的釣竿的主要部位放 大剖面圖。 第8圖是本發明的第二實施方式的釣竿的一部分缺口 的狀態的主要部分放大立體圖。 · 第9圖，是第7圖的主要部位放大圖。 第1 0圖，是具備有一般的伸縮機構的釣竿的後端部 份的放大剖面圖。 第11圖是圖不具備有一般的伸縮機構的釣竿當主上 節被收容在主節內時兩者的位置關係。 〔圖號說明〕 1 0 :釣竿 籲 1 4 :主上節 1 5 :主節 2 2 :保持機構 2 4 :嵌合構件 2 5 :尾栓 2 6 :衝擊吸收構件 2 7 :嵌合片 28:嵌合片的前端 -20- (18) (18)200401606 2 9 :縮徑部 3 0 :定徑部 3 1 :傾斜面 3 8 :凸緣部 3 9 :栓構件 4 0 :小直徑部 4 1 :大直徑部 4 2 :衝擊吸收構件 4 3 :後端面外緣部 4 4 ·· C 面 4 5 :衝擊吸收構件 4 6 :凸緣部 4 7 :滑動導引面 4 8 :段部 5 0 :小直徑部Diameter, the rear diameter is set to be larger. The diameter of the rear end of the first section l 1 is set to be larger than the diameter of the front end of the second section 12. When the first section 1 1 is withdrawn from the second section 12, the rear end portion of the first section 11 1 It will engage with the front part of the second section 12 to fix the two together. The relationship between the second verse 12 and the third verse 13 and the third verse 13 and the main verse 14 are the same. At the front ends of the second section 12 to the main section 15 are mounted ring sections R1 to R4 for improving the rigidity of the section and making the meshing of adjacent sections more reliable. A fishing line guide hole (not shown) is provided at the front end portion of the main upper section 14 and an introduction guide 17 is provided for guiding the fishing line into the fishing line introduction hole. Since the above-mentioned top guide 16 and the introduction guide 17 are of a conventional structure, detailed descriptions thereof are omitted. The main section 15 is integrally formed with a wire reel stand 18 °. The wire reel stand 18 is a structure for detachably holding the wire reel (not shown), and is provided with a foot for accommodating and holding the wire reel. One of the cover parts 19 of the part and the other cover member 20 for receiving the leg of the winder 20 ° The cover member 20 can slide left and right along the mounting surface 2 1 on which the thread reel is placed. , Will be fixed at the position of holding the thread reel between the cover part 19. Since the coil reel base 18 has a known structure, a detailed description thereof is omitted. In this embodiment, a fishing rod in the form of a reel is disclosed, but the present invention is not limited to this type of fishing rod. Of course, it is also applicable to a so-called extension rod such as a fishing rod for a stream. Next, the above-mentioned telescopic mechanism is a structure for extending and retracting the main upper section 15 as described above. -9-(7) (7) 200401606 Specifically, the “main upper section 1 4” can be changed between a storage position (the position shown in FIG. 1) with respect to the main section 15 and a protruding position protruding from the storage position to the left in the figure. In each position, the main upper section 1 4 'is relatively held at the main section 15 by a predetermined holding force. With this, the angler can use the fishing rod 10 ° in the state of the main upper section 14 in the storage position or the protruding position, and the holding mechanism 22 for holding the fourth section 14 is described later. In the middle portion of the main upper section 14, a ring member 23 is embedded to cover the outer periphery thereof. This ring member 2 3 ′ is used to prevent shaking between the main upper section 14 and the main section 15 when the main upper section 14 is in the receiving position. When the main upper section 14 is in the receiving position, it will enter the main section. The inside of the front end of section 15 (inside of the ring portion R 4). As mentioned above, the said telescopic mechanism is provided with the said holding device 22, The characteristic of this embodiment is the structure of this holding mechanism 22. By the holding mechanism 22, the main upper section 14 is held and released, that is, the telescopic operation (telescopic operation) of the main upper section 14 with respect to the main section 15 is performed smoothly. Hereinafter, the holding mechanism 22 will be described in detail. Fig. 2 is a detailed display diagram of the structure of the rear end portion (the rear end portion of the main joint 15) of the fishing rod 10 of Fig. 1, that is, the structure of the holding mechanism 22 described above. The holding mechanism 22 is provided with a fitting member 2 4 fitted inside the rear end portion of the main section 15, a tail bolt 2 5 provided at the rear end of the main section 15, and a main upper section 1 4. The impact absorbing member 2 at the rear end of the 6 ° -10- (8) (8) 200401606 fitting member 24, when the main upper section 14 becomes the storage position, it will fit with the rear end of the main upper section 14 The main upper section is held at 14 ° with a predetermined holding force. FIG. 3 is a perspective view of the fitting member 24. The fitting member 24 is made of, for example, polybutylene terephthalate (P B T) (which also contains glass fiber) and the like, and is formed in a cylindrical shape as a whole. The outer diameter of the fitting member 24 corresponds to the inner diameter of the rear end portion of the main node 15 and is tightly fitted inside the rear end portion of the main node 15. As shown in Fig. 3, the rear end of the fitting member 24 is arranged so as to coincide with the rear end of the main joint 15 (a so-called state where the surface is in contact with the surface to be integrated). The fitting member 2 4 is fixed to the main section 15 by an adhesive or the like, for example. Inside the fitting member 24, a fitting piece 27 is provided. In this embodiment, the fitting piece 27 is formed integrally with the fitting member 2 4. The fitting piece 27 may be composed of other members and fixed to the fitting member 24 by a known fixing means. As shown in the figure, the fitting piece 27 is constituted by a plate-like member. In this embodiment, six fitting pieces 27 are provided, and they are uniformly arranged in a radial pattern along the circumferential direction of the inner wall surface of the fitting members 24. The number of the fitting pieces 27 is not particularly limited, and it is set in a range of 3 to 16 pieces. Each of the fitting pieces 27 has the same shape, and is set up to protrude from the inside of the fitting member 24 in the radial direction. Each fitting piece 27 is formed in a substantially trapezoidal shape as shown in FIG. 2. Specifically, each fitting piece 27 is an inner wall surface which is smoothly continuous to the front end 2 8 of the fitting member 2 4 and is extended to -11-r ”(9) (9) 200401606 is extended toward the fitting member 2 The inner diameter of 4 is gradually increased in height. Then, a certain height dimension is maintained and extended to the axial direction of the fitting member 24. That is, each fitting piece 27 has: continuous to the fitting Member 24 The reduced diameter portion 29 of the front end 2 8 and the sizing portion 30 continuous to this portion. The reduced diameter portion 29 is directed from the front end 28 of the fitting member 24 toward the rear in the axial direction, and the fitting member 2 4 is formed by gradually reducing the inner diameter, whereby the upper surface of the reduced diameter portion 2 9 is formed with an inclined surface 3 1. The inclined surface 3 1 'When the main upper section 1 4 is embedded in the main section 15, there is It functions as a fitting guide surface for guiding the fitting of the two. The sizing portion 30 is formed continuously with the reduced diameter portion 2 9 and is formed by keeping the inner diameter of the fitting member 24 constant. The upper surface portion 3 2 ′ of the sizing portion 30 is formed parallel to the axial direction of the fitting member 24. The axial direction size of the sizing portion 30 is set to be predetermined The dimensions are made so that the tail bolt 25 can be reliably inserted. In this embodiment, the total length L1 of the fitting piece 27 is 5 mm to 30 mm, and the maximum inner diameter D of the fitting member 24 is 10 mm to 35 mm, the smallest. The inner diameter d is set to 3 mm to 3 mm. The total length L 2 of the fitting piece 27 is 5 mm to 30 mm, and the axial dimension L 3 of the sizing portion 30 is set to 4 mm to 300 mm. The fishing rod 10 is set as follows: L1 = 10 mm, L2 = 10 mm, L3 = 7 mm, D = 21 mm, 4 mm, and d = 17.27 mm. The tail bolt 2 5 is formed to have a section. It has a cylindrical shape with a small diameter of -12- (10) (10) 200401606 section 33 and large diameter section 34. The tail bolt 25 is made of resin, metal, etc. The outer diameter of the small diameter section 33 corresponds to The maximum outer diameter D of the fitting member 24 is tightly fitted to the rear end portion of the fitting member 24. In this embodiment, a male screw portion is formed on the outer peripheral surface of the small-diameter portion 33. A female screw portion is formed inside the rear end portion of the fitting member 24, and the tail bolt 25 is fitted into the fitting member 24. At the interface between the small-diameter portion 33 and the large-diameter portion 34 (with a segment portion) part) With a 0-ring 35 ', the tail bolt 25 can be reliably locked in the fitting member 24, and water can be prevented from entering the inside of the fishing rod 10 from the outside. The small-diameter portion 33 is axially dimensioned. Is set to a predetermined size. Therefore, the end face 36 in the axial direction of the small-diameter portion 33 is arranged at a predetermined position inside the main section 15 and when the main upper section 丨 4 is embedded in the main section 15 (containment position), Position the main upper section 1 4. The shock absorbing member 26 is fitted into the main upper section 14 to cover the rear end surface of the main upper section 14. The impact absorbing member 26 is made of, for example, N B R (acrylonitrile-butadiene rubber). Fig. 4 is a perspective view of the impact absorbing member 26, showing a state of being fitted into the main upper section 14; As shown in the figure, the shock absorbing member 2 6 is formed in a cylindrical shape having a segment portion, and has an insertion portion 37 and a flange portion 38. The fitting portion 37 has a cylindrical shape, and its outer diameter corresponds to the inner diameter of the rear end portion of the main upper section 14. Therefore, the 'embedded portion 37 is tightly fitted into the inner portion of the main upper section 14. The flange portion 38 is formed into a substantially π-shaped cross section, and is formed integrally with the fitting portion 37 continuously. As shown in FIG. 2, the flange portion 38 is arranged to surround the rear end portion of the main upper section 14 and engage the rear end portion with a predetermined engagement force. In this embodiment, the thickness of the impact absorbing member 2 6 is set to 0. 5 m m to 1 · 0 m m. Therefore, when the impact absorbing member 26 is attached to the main upper section 14, the edge portion of the flange portion 38, as shown in FIG. 2, projects from the peripheral surface of the main upper section 14 toward the diameter direction by a dimension t. . In the fishing rod 10 of this embodiment, when the angler performs a retracting operation to change the position of the main upper section 14 to the storage position, even if the rear end portion of the main upper section 14 collides with the fitting disposed in the main section 15 The front end 28 of the member 24 is provided with the above-mentioned impact absorbing member 2 6 at the main upper section 14 so as to cover the rear end face of the main upper section 14 so that the impact force is relaxed. In particular, a fishing rod having a main taper having a large taper shape has a great effect because it tends to violently collide with a fitting member. Therefore, the fishing rod 10 allows the angler to perform a telescopic operation without a sense of discomfort. In particular, in the present embodiment, the impact absorbing member 26 projects from the peripheral surface of the main upper section 14 in a diameter direction t. Therefore, when the main upper section 14 is fitted to the fitting member 24, no gap is generated. Therefore, when the main upper section 14 is changed to the receiving position, there will be no shaking between the main section 15 and the main upper section 14 and a telescopic mechanism with a rigid feel can be realized. On the other hand, since the main upper section 14 and the fitting member 24 are fitted via the impact absorbing member 26, the two are prevented from being fixed. Therefore, the angler -14- (12) (12) 200401606 can smoothly perform the telescoping operation. Next, a modification of this embodiment will be described. Fig. 5 is an enlarged sectional view of the main stomach portion of the fishing rod 10 according to the first modification of the present embodiment, and shows the structure of the rear end portion of the main upper section 14 in detail. This modified example is different from the above-mentioned embodiment. In the above-mentioned embodiment, the rear end portion of the main upper section 14 is embedded with an impact absorbing member 26 formed of an NBR body. In contrast, in this modified example, , The bolt member 39 is screwed to the rear end portion of the main upper section 14. The other structures are the same as those of the fishing rod 10 of the above embodiment. The bolt member 3 9 has a small-diameter portion 40 and a large-diameter portion 41 as shown in FIG. 5. The plug member 39 is made of, for example, N B R or the like. The small diameter portion 40 is formed in a cylindrical shape, and its outer diameter corresponds to the inner diameter of the rear end portion of the main upper section 14. A male screw portion is formed on the peripheral surface of the small-diameter portion 40. The large-diameter portion 4 1 is formed continuously from the small-diameter portion 40. A female screw portion is formed on the inner surface of the rear end portion of the main upper section 14. By screwing the female screw section to the male screw section, the bolt member 39 is screwed into the main upper section 14. However, it is not necessary to form the above-mentioned male and female threads in the small-diameter portion 40 and the main upper section 14, and it is of course possible to insert the small-diameter portion 40 into the rear end portion of the main upper section 14. On the outer peripheral surface and the sacrificial surface 'of the large-diameter portion 41, an impact absorbing member 42 is attached. The elastic absorbing member 42 is made of the same material as the impact absorbing member 26 of the above embodiment. The shock-absorbing member -15- (13) 200401606 4 2 can also be formed by applying an elastic paint (for example, sen.) The shock-absorbing member 4 2 is installed to cover the rear end surface of the main upper section 14 with a punch. Therefore, Even if it is the same as the above-mentioned embodiment, when the angler performs the retracting operation to make the main upper section 1 hold the position, even if the rear end portion of the main upper section 14 collides with the front end 28 of the fitting member 24 in the 15, As a result, it is possible for the angler to perform stretching without discomfort. Next, the second embodiment of the above embodiment will be described. Fig. 6 is an enlarged cross-sectional view of a main part of a second modification of the embodiment, showing the main part in detail. The structure of this modification is different from the above embodiment in that it is formed on the outer edge portion 4 3 of the rear end surface of the main upper section 14, and the member 46 is formed along the C surface 44. In this modification, the impact The absorbent member 45 is made of an elastic paint (for example, senSeft (trade name)), and the other structures are the same as the above embodiment. Even in this modification, when the angler performs the rear end of the upper section 14 Hit the front of the main section 1 5 2 4 28, the impact force can be alleviated. 〇seft and (trade name)) absorbing rod member 42 of the present modification 4 of the change in the position to hit close to the main section arranged to mitigate the impact force. Shrink operation. The rear end of the heavy section 14 of the fishing rod 10 described in the modified example, the C surface 44 and the impact absorbing structure are desirably operated by the coated 0-type fishing rod 10 phase, even if the main shaft Since the above-mentioned C-surface 44 is formed on the main member -16- (14) (14) 200401606 section 14, the impact can be further alleviated. As a result, the angler can perform a telescoping operation without any sense of incongruity. < Second Embodiment > Next, a second embodiment of the present invention will be described. Fig. 7 is an enlarged cross-sectional view of a main part of a fishing rod according to a second embodiment of the present invention, and Fig. 8 is an enlarged perspective view of a main part in a state where a part is notched. These drawings show the structure of the holding mechanism 22 provided in the telescopic mechanism of the fishing rod in detail. A feature of this embodiment is that, in the first embodiment described above, the main upper section 14 is provided with an impact absorbing member 2 6. In this embodiment, the main section 15 is formed with a position where the main upper section 14 changes. When it reaches the storage position, the sliding guide surface 47 for guiding the rear end of the main upper section 14 to the inclined surface 21. The other structures are the same as those of the first embodiment. In the present embodiment, the sliding guide surface 47 is constituted by the inner wall surface of the main joint 15. That is, in the present embodiment, as shown in Fig. 7, the inside of the rear end portion of the main joint 15 is formed with the segment portions 48. The segment portion 4 8 is formed by forming a large-diameter portion 49 and a small-diameter portion 50 inside the rear end portion of the main node 15. Fig. 9 is an enlarged view of the main part of Fig. 7 and shows a part of the section 48 in detail. As shown in Fig. 9, although the fitting piece 27 is provided on the fitting member 24, as in the first embodiment, the inclined face 31 is formed on the fitting piece 27. The inclined surface 3 1 ′ is formed continuously from the fitting member 24 because -17- (15) (15) 200401606. Therefore, the front end portion 2 4 a of the fitting member 2 4 is cut obliquely to continue to the inclined surface. 3 1. The step size of the step portion 48 is set to be the same as or larger than the thickness dimension T of the front end portion 24a of the fitting member 24. Therefore, the inner diameter of the small-diameter portion 50 is set to be the same as or smaller than the maximum inner diameter D of the distal end portion of the fitting member 24, that is, the maximum inner diameter D of the fitting member 24. This segment portion 48 can be easily formed by forming the segment portion on the mandrel of the core when the main segment 15 is molded. In this embodiment, when the angler performs a retracting operation to change the position of the main upper section 14 to the storage position, the main upper section 14 is guided by the sliding guide surface 47. At this time, the inner diameter of the small-diameter portion 50 is set to be the same as or smaller than the maximum inner diameter D of the fitting member 24, so when the rear end portion of the main upper section 14 is, When guided by the sliding guide surface 4 7, it will certainly abut against the inclined surface 3 1 of the fitting piece 2 7. As described above, the inclined surface 3 1 has a function as a fitting guide surface for guiding the fitting of the main upper section 14 and the main section 15, so the rear end portion of the main upper section 14 will It is smoothly fitted to the main joint 15 side by the inclined surface 31. That is, when the angler performs the retracting operation, even if the rear end portion of the main upper section 14 collides with the front end portion 28 of the fitting member 24, the impact force is not great. In particular, a fishing rod having a shape of a large taper in the main section has a great effect because the main upper section tends to collide with the fitting member violently. It can allow the angler to perform a telescopic operation without discomfort. In this embodiment, since the sliding guide surface 47 is constituted by the inner wall surface of the main section -18- (16) (16) 200401606 1 5 ', it is not necessary to additionally arrange the inside of the main section 15 for The members constituting the sliding surface 47. With this, the structure of the main section 5 can be simplified, and the advantage is that it will not increase the manufacturing cost of the entire fishing rod. Of course, the sliding guide surface 4 7 ′ may be constituted by mounting a required guide member in the main section 15. In the present embodiment ', the c-plane shown in the first embodiment may be formed on the outer edge portion 43 of the rear end face of the main upper section 14. By forming the c-plane, the impact force when the main upper section 14 and the fitting member 24 are collided can be more effectively suppressed. The advantage is that the telescopic operation can be performed without any sense of incongruity. [Effects of the Invention] According to the present invention described above, when the angler performs the retracting operation, even when the main section collides with the main upper section, there is no impact force. Therefore, the angler can perform a telescopic operation without a sense of incongruity. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a fishing rod according to a first embodiment of the present invention. Fig. 2 is a detailed display diagram of the structure of the rear end portion (rear end portion of the main section) of the fishing rod according to the first embodiment of the present invention. Fig. 3 is a perspective view of a fitting member of the fishing rod according to the first embodiment of the present invention. Fig. 4 is a perspective view of an impact absorbing member of the fishing rod according to the first embodiment of the present invention. -19- (17) (17) 200401606 Fig. 5 'is an enlarged sectional view of a main part of a fishing rod according to a first modification of the first embodiment of the present invention. Fig. 6 'is an enlarged sectional view of an important part of a fishing rod according to a second modification of the first embodiment of the present invention. -Fig. 7 is an enlarged sectional view of a main part of a fishing rod according to a second embodiment of the present invention. Fig. 8 is an enlarged perspective view of a main part of a state where a part of the fishing rod according to the second embodiment of the present invention is notched. · Figure 9 is an enlarged view of the main parts of Figure 7. Fig. 10 is an enlarged sectional view of a rear end portion of a fishing rod provided with a general telescopic mechanism. Fig. 11 is a diagram showing the positional relationship between a fishing rod without a general telescopic mechanism when the main upper section is accommodated in the main section. [Illustration of drawing number] 10: Fishing rod 14: Main upper section 15: Main section 2 2: Holding mechanism 2 4: Fitting member 2 5: Tail bolt 2 6: Impact absorbing member 2 7: Fitting piece 28 : Tip of fitting piece -20- (18) (18) 200401606 2 9: Reduced diameter part 3 0: Fixed diameter part 3 1: Inclined surface 3 8: Flange part 3 9: Bolt member 4 0: Small diameter part 4 1: Large diameter portion 4 2: Impact absorbing member 4 3: Rear end outer edge portion 4 4 · C surface 4 5: Impact absorbing member 4 6: Flange portion 4 7: Sliding guide surface 4 8: Segment portion 5 0: Small diameter part