201119905 六、發明說明： 【發明所屬之技術領域】 本發明’是讓自行車的制動器用纜線或是變速用纜線 通過’並且將該續線的長度微調整用的纜線調整裝置。 【先前技術】 專利文獻1中的纜線調整裝置，如第5圖所示，是揭 不具有：螺絲構件1 〇、及管狀螺帽構件3 0、及推迫構件 4 0 ’藉由螺絲構件1 0及管狀螺帽構件3 0的相對旋轉，將 自行車的制動器用纜線或是變速用纜線50的長度微調整 的技術。 專利文獻2中的纜線調整裝置，如第6圖所示，是揭 不具備：設有貫通孔的管狀鎖定構件30、及在內部形成 有母螺紋部的基座部3 5、及螺絲構件1 〇，且將螺絲構件 10的公螺紋部通過管狀鎖定構件30的貫通孔並螺合於基 座部3 5的技術。 [專利文獻1]台灣專利公告第3292 1 7號 [專利文獻2]台灣專利公告第420 1 07號 【發明內容】 (本發明所欲解決的課題） 專利文獻1所揭示的纜線調整裝置，即使被裝設在自 行車並將續線長度調整完成之後，例如，搭乘者操作自行 車的手把時纜線的外殻扭轉的話，管狀螺帽構件及螺絲構 -5- 201119905 件因爲是可相對旋轉的構造，所以具有好不容易調整的纜 線長度會變化的缺點。 專利文獻2所揭示的纜線調整裝置，是在進行纜線長 度的調整時，因爲有需要一邊抵抗彈簧的推迫力將管狀鎖 定構件從基座部分離一邊將螺絲對於基座部相對旋轉，所 以具有必需由兩手進行調整操作的缺點。 本發明是鑑於上述的缺點，其課題爲提供一種纜線調 整裝置’構造簡單’可由單手調整，即使纜線的外殼扭轉 的情況發生，已調整的纜線長度也不會變化。 (用以解決課題的手段） 發明1的纜線調整裝置，其特徵爲，具備：螺絲構件 、及帽構件、及管狀螺帽構件；上述螺絲構件，是具有第 1圓筒部及公螺紋部，在該螺絲構件的內部，具有：在上 述公螺紋部側設有芯線可通過的第1貫通孔、及在上述第 1圓筒部側設有比上述第1貫通孔的內徑大且上述芯線的 外殼可嵌入的第1帽孔；上述帽構件，是具有：在一端設 有上述心線的外威可嵌入的第2帽孔、及在中間設有上述 芯線可通過的第2貫通孔、及在另一端設有上述公螺紋部 可插入的插入孔；上述管狀螺帽構件，是具有：在一端設 有上述螺絲構件的上述第1圓筒部可插入的第1開口部、 及在中間設有上述螺絲構件的上述公螺紋部可—邊螺合一 邊貫通的母螺紋部、及在另一端設有上述帽構件的插入孔 側的外周可插入的第2開口部；上述螺絲構件的公螺紋部 -6 - 201119905 、及上述帽構件的插入孔，是具有上述公螺紋部被插入上 述插入孔時彼此之間不相對旋轉的形狀。 在此纜線調整裝置中，因爲藉由具備：設有公螺紋部 的螺絲構件、及設有上述公螺紋部可插入的插入孔的帽構 件、及設有母螺紋部的管狀螺帽構件，上述螺絲構件的公 螺紋部、及上述帽構件的插入孔，是具有上述公螺紋部被 插入上述插入孔時彼此之間不相對旋轉的形狀，所以螺絲 構件不與帽構件相對旋轉，就可以達成：搭乘者由單手一 邊將管狀螺帽構件旋轉，一邊將纜線調整裝置的長度微調 整，就可以將纜線的長度微調整，搭乘者操作自行車的手 把時纜線的外殼即使扭轉，已調整的纜線長度也不會變化 的效果。 發明2的纜線調整裝置，是上述螺絲構件的公螺紋部 、及上述帽構件的插入孔，是形成從圓剖面所見爲非正圓 形狀。發明3的續線調整裝置’是進一步，形成從圓剖面 所見爲略D字狀。此情況，藉由簡單的構造，管狀螺帽 構件及螺絲構件就可以構成不相對旋轉構造。 發明4的纜線調整裝置，是進一步具備推迫構件。發 明5的纜線調整裝置，是上述推迫構件是由捲簧所構成的 彈性構件。發明6的纜線調整裝置，是上述推迫構件是在 被壓縮的狀態下被配置在上述螺絲構件的上述公螺紋部的 近位端及上述管狀螺帽構件的上述第1開口部之間。此情 況，在管狀螺帽構件及螺絲構件之間，因爲推迫力隨時被 施加，所以可以達成抑制這些的構件之間相對旋轉的效果 201119905 發明7的纜線調整裝置，是上述第1帽孔、上述第1 貫通孔、上述第2貫通孔、上述第2帽孔是被配置於同軸 上。此情況，芯線可以容易地貫通纜線調整裝置。 發明8的纜線調整裝置，是在上述帽構件的插入孔的 外周部分，形成有環狀的凹槽，在該凹槽中，設有止脫構 件。發明9的纜線調整裝置，是上述止脫構件，是具有彈 性的〇形環。此情況，在將纜線調整裝置安裝在自行車 的過程，可以防止帽構件從管狀螺帽構件脫落。 發明1 〇的纜線調整裝置，是上述管狀螺帽構件的上 述母螺紋部的軸方向的長度，是形成比上述螺絲構件的上 述公螺紋部的軸方向的長度短。此情況，可以將管狀螺帽 構件的長度短縮，且纜線調整裝置整體的長度可以更短縮 【實施方式】 以上，一邊參照圖式一邊說明本發明的實施例。 [第1實施例] 第1圖是顯示本發明的纜線調整裝置的第1實施例的 分解狀態的立體圖。第2圖是顯示本發明的纜線調整裝置 的第1實施例的組合狀態的剖面圖。 本發明的纜線調整裝置，是具備：螺絲構件1 0、及 帽構件20、及管狀螺帽構件30。 -8- 201119905 螺絲構件1 0，是具有第1圓筒部11及公螺紋部12 ’ 在該螺絲構件1 〇的內部，具有：在公螺紋部1 2側設有芯 線51可通過的第1貫通孔1 3、及在第1圓筒部1 1側設 有比第1貫通孔13的內徑大且芯線51的外殻52可嵌入 的第1帽孔14。 帽構件20，是具有：在一端設有芯線51的外殼53 可嵌入的第2帽孔21、及在中間設有上述芯線51可通過 的第2貫通孔22、及在另一端設有上述公螺紋部12可插 入的插入孔23。 管狀螺帽構件3 0，是具有：在一端設有螺絲構件1 〇 的第1圓筒部11可插入的第1開口部31、及在中間設有 上述螺絲構件1 0的上述公螺紋部1 2可一邊螺合一邊貫通 的母螺紋部32、及在另一端設有上述帽構件20的插入孔 2 3側的外周可插入的第2開口部3 3。 螺絲構件1 0的公螺紋部1 2、及帽構件2 0的插入孔 23’是具有公螺紋部12被插入插入孔23時彼此之間不相 對旋轉的形狀。具體而言，螺絲構件1 0的公螺紋部1 2， 是從剖面所見爲非正圓形狀（進一步具體而言，形成略D 字狀）’帽構件20的插入孔23，是形成對應螺絲構件1 〇 的公螺紋部1 2的非圓形狀的孔形狀。當然，此非正圓形 狀是可防止螺絲構件1 0及帽構件2 0的相對旋轉的形狀的 話，任何的形狀也可以。 被作爲自行車的制動器用纜線或是變速用纜線纜線 50，是具有芯線51及外殼52及外殼53。 -9- 201119905 狀 入 52 螺 的 第 安 作 桿 右 的 〇 的 者 旋 動 被 的 管 操 度 如第1圖所示’螺絲構件1 0的公螺紋部1 2是與管 螺帽構件30的母螺紋部32 —邊螺合一邊貫通的方式插 帽構件20的插入孔2 3地組合之後，將芯線51的外殻 嵌入螺絲構件10的第1帽孔14，將芯線5 1，依序貫通 絲構件10的公螺紋部1 2的第1貫通孔1 3、帽構件2 0 第2貫通孔22’將芯線51的外殼53嵌入帽構件20的 2帽孔2 1 ’將纜線5 0及本發明的纜線調整裝置一體地 裝’並配置在無圖示的自行車的制動器裝置及制動器操 桿裝置之間’或是配置在自行車的變速裝置及變速操作 裝置之間並將那些連結的方式進行安裝。 且’搭乘者是由手將管狀螺帽構件30朝第1圖的 方向移動的方式旋轉的話，帽構件20也同時朝第1圖 右方向移動，本發明的纜線調整裝置整體的長度會變長 由此’使被作爲自行車的制動器用纜線或是變速用纜線 纜線50的長度加長的方式進行微調整。相反地，搭乘 由手將管狀螺帽構件30朝第1圖的左方向移動的方式 轉的話，纜線50帽構件20也同時朝第1圖的左方向移 ，使本發明的纜線調整裝置整體的長度縮短。由此，使 作爲自行車的制動器用纜線或是變速用纜線的纜線5 0 長度縮短的方式進行微調整。藉由這種構造，由單手將 狀螺帽構件30旋轉就可以將纜線50的長度微調整。且 螺絲構件1 〇的公螺紋部1 2、及帽構件20的插入孔23 因爲是被安裝在彼此之間不相對旋轉的狀態所以搭乘者 作自行車的手把時纜線的外殼即使扭轉，調整的纜線長 -10- 201119905 也不會變化。 [第2實施例] 第3圖是顯示本發明的纜線調整裝置的第2實施例 分解狀態的立體圖。第4圖是顯示本發明的纜線調整裝 的第2實施例的組合狀態的剖面圖。 此第2實施例’對於第1實施例，是在帽構件2〇 插入孔23的外周部分’形成有環狀的凹槽24，在該凹 24中’設有被作爲止脫構件25的具有彈性的Ο形環的 成是不同。其他的結構，因爲是與第1實施例相同，所 對於相對應的構件加上同一符號而省略其說明。 將帽構件2 0插入管狀螺帽構件3 0的第2開口部 的話，〇形環的外周，因爲是與管狀螺帽構件30的第 開口部3 3的內周面彈性地接觸，所以摩擦發生，帽構 20及管狀螺帽構件3 0更不易相對旋轉，將纜線組合在 發明的纜線調整裝置之前，可以防止帽構件2 0從管狀 帽構件3 0脫落。 此第2實施例的纜線5 0的長度微調整的方法，因 是與第1實施例相同，所以省略其說明。且，此第2實 例也可以達成與第1實施例相同的效果。 [其他的實施例] (a )對於第1實施例或是第2實施例，進一步， 備推迫構件40也可以。該推迫構件40，是由例如捲簧 的 置 的 槽 構 以 33 2 件 本 螺 爲 施 具 所 -11 - 201119905 構成的彈性構件。且，該推迫構件40，是在被壓縮的狀 態下被配置在螺絲構件1 0的公螺紋部1 2的近位端1 5及 管狀螺帽構件3 0的第1開口部3 1之間。藉此’在管狀螺 帽構件3 0及螺絲構件1 〇之間，因爲推迫力隨時被施加， 所以不相對旋轉的效果更提高。 (b)第1帽孔14、第1貫通孔13、第2貫通孔22 、第2帽孔21是配置於同軸上也可以。藉此，芯線51可 以容易地貫通本發明的纜線調整裝置。 (c )管狀螺帽構件3 0的母螺紋部3 2的軸方向的長 度，是形成比螺絲構件1 〇的公螺紋部1 2的軸方向的長度 短也可以。藉此，可以短縮管狀螺帽構件30的長度，且 纜線調整裝置整體的長度可以更縮短。 【圖式簡單說明】 [第1圖]本發明的纜線調整裝置的第1實施例的分解 狀態的立體圖。 [第2圖]本發明的纜線調整裝置的第1實施例的組合 狀態的剖面圖。 [第3圖]本發明的纜線調整裝置的第2實施例的分解 狀態的立體圖。 [第4圖]本發明的纜線調整裝置的第2實施例的組合 狀態的剖面圖。 [第5圖]專利文獻1的習知的纜線調整裝置的分解狀 態的立體圖。 -12- 201119905 [第6圖]專利文獻2的習知的纜線調整裝置的分解狀 態的立體圖。 【主要元件符號說明】 1 〇 :螺絲構件 1 1 _·第1圓筒部 1 2 :公螺紋部 1 3 :第1貫通孔 14 :第1帽孔 1 5 :近位端 2 0 :帽構件 2 1 :第2帽孔 22 :第2貫通孔 2 3 :插入孔 24 :凹槽 2 5 :止脫構件 3 0 :管狀螺帽構件（管狀鎖定構件） 3 1 :第1開口部 3 2 :母螺紋部 3 3 :第2開口部 3 5 :基座部 40 :推迫構件 -13-[Technical Field] The present invention is a cable adjusting device for allowing a brake cable or a shifting cable of a bicycle to pass through and finely adjusting the length of the continuous wire. [Prior Art] As shown in Fig. 5, the cable adjusting device of Patent Document 1 has a screw member 1 〇, a tubular nut member 30, and a pressing member 40' by a screw member. The technique of adjusting the relative rotation of the tubular nut member 30 and the length of the tubular nut member 30 to slightly adjust the length of the bicycle brake cable or the shifting cable 50. As shown in FIG. 6, the cable adjusting device of Patent Document 2 does not include a tubular locking member 30 having a through hole, a base portion 35 having a female screw portion formed therein, and a screw member. 1 〇, and the male screw portion of the screw member 10 is passed through the through hole of the tubular locking member 30 and screwed to the base portion 35. [Patent Document 1] Taiwan Patent Publication No. 3292 1-7 [Patent Document 2] Taiwan Patent Publication No. 420 1 07 [Invention Summary] (The problem to be solved by the present invention) The cable adjustment device disclosed in Patent Document 1, Even if it is installed on the bicycle and the length of the extension is adjusted, for example, if the outer casing of the cable is twisted when the rider operates the handle of the bicycle, the tubular nut member and the screw structure - 5, 201119905 are relatively rotatable The construction, so there is a disadvantage that the length of the cable that is difficult to adjust will vary. In the cable adjusting device disclosed in Patent Document 2, when the cable length is adjusted, the tubular locking member is detached from the base portion against the biasing force of the spring, and the screw is relatively rotated with respect to the base portion. It has the disadvantage of having to perform adjustment operations by both hands. SUMMARY OF THE INVENTION The present invention has been made in view of the above disadvantages, and an object thereof is to provide a cable adjusting device having a simple structure which can be adjusted by one hand, and the length of the adjusted cable does not change even if the outer casing of the cable is twisted. A cable adjusting device according to a first aspect of the invention includes a screw member, a cap member, and a tubular nut member; wherein the screw member has a first cylindrical portion and a male thread portion The inside of the screw member includes a first through hole through which the core wire passes, and a larger inner diameter than the first through hole on the first cylindrical portion side. a first cap hole into which the outer shell of the core wire can be inserted; the cap member having a second cap hole into which the outer core is provided at one end, and a second through hole through which the core wire can pass And an insertion hole at which the male screw portion is insertable at the other end; the tubular nut member having a first opening portion into which the first cylindrical portion having the screw member provided at one end is insertable, and a male screw portion in which the screw member is provided in the middle, and a female screw portion that penetrates while being screwed, and a second opening portion into which an outer circumference of the insertion hole side of the cap member is inserted at the other end; and the screw member Male thread part-6 - 201 119905 and the insertion hole of the cap member have a shape in which the male screw portion is not rotated relative to each other when the insertion hole is inserted into the insertion hole. The cable adjusting device includes a screw member provided with a male screw portion, a cap member provided with an insertion hole into which the male screw portion can be inserted, and a tubular nut member provided with a female screw portion. The male screw portion of the screw member and the insertion hole of the cap member have a shape in which the male screw portion does not rotate relative to each other when the male screw portion is inserted into the insertion hole. Therefore, the screw member can be rotated without rotating relative to the cap member. : The rider can adjust the length of the cable adjustment device by slightly adjusting the length of the cable adjusting device while rotating the tubular nut member with one hand. When the rider operates the handle of the bicycle, the outer casing of the cable is twisted. The effect of the adjusted cable length does not change. In the cable adjusting device according to the second aspect of the invention, the male screw portion of the screw member and the insertion hole of the cap member are formed in a non-circular shape as seen from a circular cross section. The continuous line adjusting device of the invention 3 is further formed in a substantially D-shape as seen from a circular cross section. In this case, the tubular nut member and the screw member can be constructed in a non-rotational configuration by a simple configuration. The cable adjusting device of the fourth aspect of the invention further includes a pressing member. The cable adjusting device of the invention 5 is such that the pressing member is an elastic member composed of a coil spring. In the cable adjusting device of the sixth aspect of the invention, the pressing member is disposed between the proximal end of the male screw portion of the screw member and the first opening portion of the tubular nut member in a compressed state. In this case, since the pressing force is applied between the tubular nut member and the screw member at any time, the effect of suppressing the relative rotation between the members can be achieved. 201119905 The cable adjusting device according to the seventh aspect of the invention is the first cap hole, The first through hole, the second through hole, and the second cap hole are disposed coaxially. In this case, the core wire can easily pass through the cable adjusting device. The cable adjusting device according to Invention 8 is characterized in that an annular groove is formed in an outer peripheral portion of the insertion hole of the cap member, and a retaining member is provided in the groove. The cable adjusting device of the invention 9 is the above-mentioned retaining member and is an elastic 〇 ring. In this case, the process of attaching the cable adjusting device to the bicycle prevents the cap member from coming off the tubular nut member. According to a first aspect of the invention, in the cable adjusting device of the present invention, the length of the female screw portion of the tubular nut member in the axial direction is shorter than the length of the male screw portion of the screw member in the axial direction. In this case, the length of the tubular nut member can be shortened, and the entire length of the cable adjusting device can be shortened. [Embodiment] The embodiments of the present invention will be described above with reference to the drawings. [First Embodiment] Fig. 1 is a perspective view showing an exploded state of a first embodiment of the cable adjusting device of the present invention. Fig. 2 is a cross-sectional view showing a combined state of a first embodiment of the cable adjusting device of the present invention. The cable adjusting device of the present invention includes a screw member 10, a cap member 20, and a tubular nut member 30. -8- 201119905 The screw member 10 has the first cylindrical portion 11 and the male screw portion 12'. The screw member 1 内部 has the first one in which the core wire 51 can pass through the male screw portion 1 2 side. The through hole 13 is provided, and a first cap hole 14 that is larger than the inner diameter of the first through hole 13 and into which the outer casing 52 of the core wire 51 can be fitted is provided on the first cylindrical portion 1 1 side. The cap member 20 has a second cap hole 21 into which the outer casing 53 having the core wire 51 at one end is fitted, a second through hole 22 through which the core wire 51 can pass, and the above-mentioned male end. The threaded portion 12 is insertable into the insertion hole 23. The tubular nut member 30 has a first opening portion 31 into which the first cylindrical portion 11 having the screw member 1 is provided at one end, and the male screw portion 1 in which the screw member 10 is provided in the middle. 2, the female screw portion 32 that can be inserted while being screwed, and the second opening portion 33 that can be inserted into the outer periphery of the insertion hole 23 side of the cap member 20 at the other end. The male screw portion 1 of the screw member 10 and the insertion hole 23' of the cap member 20 have a shape in which the male screw portion 12 is inserted into the insertion hole 23 without being rotated relative to each other. Specifically, the male screw portion 1 2 of the screw member 10 is an insertion hole 23 of the cap member 20 which is a non-circular shape (more specifically, formed in a slightly D shape) as seen from the cross section, and is formed as a corresponding screw member. 1 The non-circular hole shape of the male thread portion 1 2 of the crucible. Of course, this non-circular shape is a shape that can prevent the relative rotation of the screw member 10 and the cap member 20, and any shape may be used. The brake cable or the shift cable cable 50, which is used as a bicycle, has a core wire 51, a casing 52, and a casing 53. -9- 201119905 The right side of the snail that is inserted into the 52 snail is rotated as shown in Fig. 1. The male thread portion 12 of the screw member 10 is the same as the tube nut member 30. The female screw portion 32 is inserted into the insertion hole 23 of the cap member 20 while being screwed together, and then the outer shell of the core wire 51 is fitted into the first cap hole 14 of the screw member 10, and the core wire 5 1 is sequentially passed through. The first through hole 13 of the male screw portion 1 of the wire member 10, the cap member 20, the second through hole 22', the outer casing 53 of the core wire 51 is fitted into the 2 cap hole 2 1 ' of the cap member 20, and the cable 50 and The cable adjusting device of the present invention is integrally mounted and disposed between a brake device of a bicycle (not shown) and a brake lever device or between a shifting device of a bicycle and a shift operating device and connecting those. Install it. In the case where the rider rotates the tubular nut member 30 in the direction of the first figure by the hand, the cap member 20 also moves in the right direction of the first figure, and the length of the entire cable adjusting device of the present invention changes. The length is adjusted so that the length of the brake cable or the shift cable 50 as the bicycle is lengthened. On the other hand, when the tubular nut member 30 is moved by the hand in the left direction of the first drawing, the cap member 20 of the cable 50 is simultaneously moved to the left direction of the first drawing, so that the cable adjusting device of the present invention is provided. The overall length is shortened. Thereby, the length of the cable 50 which is a brake cable for a bicycle or a cable for a shifting cable is finely adjusted. With this configuration, the length of the cable 50 can be finely adjusted by rotating the nut member 30 with one hand. Further, since the male screw portion 1 of the screw member 1 and the insertion hole 23 of the cap member 20 are mounted in a state in which they are not rotated relative to each other, the outer casing of the cable is twisted even when the rider makes the handle of the bicycle. The cable length -10- 201119905 will not change. [Second embodiment] Fig. 3 is a perspective view showing an exploded state of a second embodiment of the cable adjusting device of the present invention. Fig. 4 is a cross-sectional view showing a combined state of a second embodiment of the cable adjusting device of the present invention. In the second embodiment, in the first embodiment, an annular groove 24 is formed in the outer peripheral portion ' of the cap member 2's insertion hole 23, and the recess 24 is provided with the retaining member 25 as the retaining member 25. The formation of the elastic Ο ring is different. The other configurations are the same as in the first embodiment, and the same reference numerals will be given to the corresponding members, and the description thereof will be omitted. When the cap member 20 is inserted into the second opening of the tubular nut member 30, the outer circumference of the beak ring is elastically contacted with the inner peripheral surface of the first opening portion 33 of the tubular nut member 30, so that friction occurs. The cap structure 20 and the tubular nut member 30 are less likely to rotate relative to each other, and the combination of the cable before the cable adjusting device of the invention prevents the cap member 20 from coming off the tubular cap member 30. Since the method of finely adjusting the length of the cable 50 of the second embodiment is the same as that of the first embodiment, the description thereof will be omitted. Further, this second embodiment can achieve the same effects as those of the first embodiment. [Other Embodiments] (a) For the first embodiment or the second embodiment, the pressing member 40 may be further provided. The urging member 40 is an elastic member composed of, for example, a grooved spring, and a stalk of 331 - 201119905. Further, the pressing member 40 is disposed between the proximal end 15 of the male screw portion 1 2 of the screw member 10 and the first opening portion 31 of the tubular nut member 30 in a compressed state. . Thereby, the pressing force is applied between the tubular nut member 30 and the screw member 1A at any time, so that the effect of no relative rotation is further improved. (b) The first cap hole 14, the first through hole 13, the second through hole 22, and the second cap hole 21 may be disposed coaxially. Thereby, the core wire 51 can easily pass through the cable adjusting device of the present invention. (c) The length of the female screw portion 32 of the tubular nut member 30 in the axial direction may be shorter than the length of the male screw portion 12 of the screw member 1 in the axial direction. Thereby, the length of the tubular nut member 30 can be shortened, and the length of the entire cable adjusting device can be further shortened. BRIEF DESCRIPTION OF THE DRAWINGS [Fig. 1] Fig. 1 is a perspective view showing an exploded state of a first embodiment of a cable adjusting device according to the present invention. Fig. 2 is a cross-sectional view showing the assembled state of the first embodiment of the cable adjusting device of the present invention. [Fig. 3] Fig. 3 is a perspective view showing an exploded state of a second embodiment of the cable adjusting device of the present invention. Fig. 4 is a cross-sectional view showing a combined state of a second embodiment of the cable adjusting device of the present invention. [Fig. 5] A perspective view showing an exploded state of a conventional cable adjusting device of Patent Document 1. -12-201119905 [Fig. 6] A perspective view showing an exploded state of a conventional cable adjusting device of Patent Document 2. [Description of main component symbols] 1 〇: Screw member 1 1 _·1st cylindrical portion 1 2 : Male screw portion 1 3 : First through hole 14 : First cap hole 1 5 : Proximal end 2 0 : Cap member 2 1 : 2nd cap hole 22 : 2nd through hole 2 3 : insertion hole 24 : groove 2 5 : retaining member 3 0 : tubular nut member (tubular locking member) 3 1 : 1st opening part 3 2 : Female thread portion 3 3 : second opening portion 3 5 : base portion 40 : pushing member-13-