1330128 九、發明說明： 【發明所屬之技術領域】 • 本發·涉及於自行車領域，尤指—種質量輕且堅固耐用之 曲柄及曲柄之製造方法。 【先前技術】 按，自行車之結構中’用於連接腳踏與齒盤之間的曲柄，其 參所使用之常見材質不外乎是鐵、銘等金屬材料，惟該金屬材料^ 重量往往為使用者所垢病處，因此藉由科技進步，使具有勤性、 重量輕、加熱即硬固之複合材纖維問世時，令該複合材纖維可韩 易取代大部分金屬㈣，域為自行車之元件_材質首選。 其中關於複合材纖維製成之自行車曲柄案例，有如台灣專利 第1274008號『曲柄之製造方法』專利案，該案例中之曲柄之製 造方法，包括下列四項步驟： _ 〈⑴纏繞：先將二接合件置於模具上，接著將含浸樹脂之 複合材纖維紗束纏繞於二接合件； 《Π》熱壓成型：將魏完成之曲柄置人模具嶋壓成型； 《m》表φ處理：將紐成型之曲柄進行表面處理； 《IV》成品：表面處理完成後之曲柄即為成品。 然而該案纏繞至熱壓成型程序為一次完成動作’令置於模具 之接。件尺寸大小次蚊，若強制於賴㈣換不同尺寸 之接。件_則會使置換後之接合件與複合材纖維之間結合度不 足’使接合件於複合材纖維内產生鬆動問題。 解沐有二於：提供一種解決上述問題，將成為此-業界所.句 解決，但仍遲遲無法解決的課題1此，本發 ^所知 說明中所述具編㈣她之細^ /、下文詳細 【發明内容】 树明之目的，係提供—種不因製程中斷而大幅影響後序製 程時間之曲柄及曲柄之製造方法。 而為達成上述目的，本發明係將一碳纖維複合材置入模具 内’再运至機台内進行加熱加壓，令碳纖維複合材定型成一預定 幵y狀之曲柄’該曲柄之兩端係用於連接自行車之腳踏及齒盤，且 曲柄之其中—端形成若干爪部’而兩端皆設有—貫穿狀之容置 孔’該容置孔可供-由金屬材f製成之轉接筒，糊卡制方式設 置，再將-與曲柄材質相同之封固件置人容置制，之後將曲柄 t加熱處理’而於冷卻後曲柄進行表面處理藉以絲整支曲柄。 藉由上述，本發明預計達到下列功效： 一、本發明之曲柄魅由二次加熱喊，因此即可先行製造 出曲柄之半成品’並能夠於之後再另行裝人所需尺寸之轉接筒， 而不需立刻決定採用何種尺寸之轉接筒，使產品之組裝製程上可 較為靈活。 一、由於該封固件與曲柄使用同一種材質所組成，如此能使 兩者之結合上獲得更佳效果，使轉接筒穩固地被限制於曲柄内， 不僅可防止轉接筒自容置孔脫出，並可避免曲柄與轉接筒之間發 生鬆動問題。 x 二、本發明僅轉接筒使用金屬材質製成，以外之曲柄部分則 利用輕量化之錢料合材航，令曲滅設於自行車時避免 大幅增加自行車之整體重量。 【實施方式】 本發明係有關-種曲柄及曲柄之製造方法，有關本發明為達 上述目的、特徵所_技術手段及其功效，請先參照第一圖及第 二圖所示： 本發月係冑k纖維複合材置人模具内，再送至機台内進行 加熱加壓’令碳_複合材定型成一預定雜之半成品曲柄卜 ，時該曲柄1應具有兩端部，其中-端f折延伸若干擴散狀之爪 0 (本發明之爪部係以四支關，其數量之多寡可依所需而 定），該設有爪部1 〇之端部為一齒盤連接端1 i，該齒盤連接端 1 1可用於連接自行車之齒盤，而另一端則為_腳踏連接端1 2，該腳踏連接端12可用於連接自行車之腳踏。 該齒盤、腳踏連接端1 1、12皆設有-貫穿狀之容置孔！ 3該谷置孔13可供一轉接筒2〇設置，該轉接筒2〇為一金 屬材質製成’並且於容置孔i 3㈣有若干卡溝i 3 !，而該轉 接筒2 0外表則凸設有對應該卡溝13 i之凸緣2 i，如此可將 轉接筒2 0 _卡制方式設置於容置孔丨3内，鱗於設有轉接 筒2 0之容置;L1 3係再將—咖件3Q置人（如第三圖所示）， 該封固件3 Q讀質為碳纖維複合材，之後再將裝設有封固件3 〇之齒盤、腳踏連接端11、12經由加熱處理，由於該封固件 ”曲相1使賴-種材質所組成，如此係能令兩者於相互融 合上獲得更佳效果，使轉接筒2◦得以穩固地被限制於曲柄工 内，不僅可防止轉接筒20自容置孔13脫出，並可避免曲柄！ 與轉接筒2 0之間產生空隙’使轉接筒2於容置孔丨發生鬆 動問題；最後將加熱冷卻後之曲柄工進行表面修圓、研磨去耗 邊、補凹陷不平處、上漆·.·等加工處理，完成如第四圖及第五圖 之曲柄1。 整體而言’本發明之製程可如第六圖所示，其詳細製程分列 如下： 一、 紐成型4 Q:將—碳纖維複合材置人模具内加熱、加 壓定型成一預定形狀之半成品； -、70件裝設4 1 :將-轉接筒裝設於半成品内； 二、 熱固封合4 2 :將半成品之轉接元件裝設處再置入一封 固件’再經由加熱處理，令封固件與半成品融合，藉以防 筒脫出。 由上所述者僅為用以轉本發明之較佳實施例，並非企圖據 以對本發明作任何形式上之限制，是以，凡有在相同之創作精神 下所作有關本發明之任何修飾或變更，皆仍應包括在本發明意圖 1330128 保護之範疇。 ; 【圖式簡單說明】 第一圖係本發明之分解圖。 第二圖係本發明之未裝設封固件之曲柄剖面圖。 第三圖係本發明之已裝設封固件之曲柄剖面圖。 第四圖係本發明之外觀圖。 • 第五圖係本發明之透視圖。 第六圖係本發明之製造流程圖。 【主要元件符號說明】 I -曲柄 II -齒盤連接端 1 3-容置孔 2 0-轉接筒 3 0-封固件 4 1-元件裝設 10-爪部 12 -腳踏連接端 13 1-卡溝 2 1-凸緣 4 0-熱壓成型 4 2-熱固封合1330128 IX. Description of the invention: [Technical field to which the invention pertains] • The present invention relates to the field of bicycles, and more particularly to a method for manufacturing a crank and a crank that is lightweight and durable. [Prior Art] Press, the structure of the bicycle is used to connect the crank between the pedal and the toothed disc. The common material used in the reference is nothing more than metal materials such as iron and metal, but the weight of the metal material is often When the user is exposed to the disease, the composite fiber with the flexibility, light weight, and heat and hard solidity is made available by the advancement of science and technology, so that the composite fiber can replace most of the metal (4), and the domain is bicycle. Component _ material preferred. Among them, the bicycle crank case made of composite fiber is similar to the patent case of the manufacturing method of the crank of Taiwan Patent No. 127408. The manufacturing method of the crank in this case includes the following four steps: _ 〈(1) entanglement: first two The joint member is placed on the mold, and then the composite fiber bundle of the impregnated resin is wound around the two joint members; "Π" hot press forming: the press of the finished crank is placed on the mold; "m" table φ treatment: Newly formed crank for surface treatment; "IV" finished product: the crank after the surface treatment is finished. However, the case is wound up to the hot press forming process to be placed in the mold once. The size of the size of the mosquito, if forced to rely on (four) for different sizes. The piece _ will result in insufficient bonding between the replaced joint member and the composite fiber, which causes the joint member to loosen in the composite fiber. There are two solutions to the problem: providing a solution to the above problems, which will become a problem solved by this-industry. However, it is still too late to solve the problem. This is the description of the above-mentioned instructions. The following is a detailed description of the invention. The purpose of the tree is to provide a method for manufacturing a crank and a crank that does not significantly affect the subsequent process time due to process interruption. In order to achieve the above object, the present invention places a carbon fiber composite material into a mold and then transports it to the machine for heating and pressurization, so that the carbon fiber composite material is shaped into a predetermined 幵y-shaped crank. The bicycle pedal is connected to the pedal and the toothed disc, and the middle end of the crank is formed with a plurality of claws' and both ends are provided with a through hole-shaped receiving hole for the receiving hole to be made of the metal material f The barrel is set, the paste is set, and the same sealing material as the crank material is placed, and then the crank t is heat-treated. After cooling, the crank is surface-treated to obtain the entire crank. Through the above, the present invention is expected to achieve the following effects: 1. The crank charm of the present invention is shouted by the second heating, so that the semi-finished product of the crank can be manufactured first, and the adapter cylinder of the required size can be additionally installed later. It is not necessary to immediately decide which size of the adapter tube to use, so that the assembly process of the product can be more flexible. 1. Since the sealing member and the crank are made of the same material, the combination of the two can obtain better effects, and the adapter cylinder is stably confined in the crank, thereby preventing the adapter cylinder from being self-accommodating. Pull out and avoid loosening between the crank and the adapter. x 2. In the present invention, only the adapter cylinder is made of metal material, and the crank portion other than the crank portion is made of lightweight materials, so that the bicycle can be prevented from greatly increasing the overall weight of the bicycle when it is placed on the bicycle. [Embodiment] The present invention relates to a method for manufacturing a crank and a crank, and the present invention is directed to the above objects, features, technical means, and effects thereof, please refer to the first figure and the second figure first: The 胄k fiber composite material is placed in the mold, and then sent to the machine for heating and pressing, so that the carbon_composite material is shaped into a predetermined semi-finished crank, when the crank 1 should have both ends, wherein the - end f fold Extending a plurality of diffusing claws 0 (the claws of the present invention are in four branches, the number of which can be determined as needed), and the end portion of the claw portion 1 is a toothed plate connecting end 1 i, The chainring end 1 1 can be used to connect the toothed disc of the bicycle, while the other end is a foot connecting end 12 which can be used to connect the pedal of the bicycle. The toothed disc and the foot connecting ends 1 1 and 12 are provided with a through hole-shaped receiving hole! 3, the valley hole 13 can be provided by an adapter tube 2, which is made of a metal material and has a plurality of slots i 3 ! in the receiving hole i 3 (four), and the adapter tube 2 0, the outer surface of the protrusion is provided with a flange 2 i corresponding to the groove 13 i, so that the adapter tube 20 0 _ can be set in the accommodating hole 3, and the scale is provided with the adapter tube 20 The L1 3 series will be placed on the 3Q (as shown in the third figure). The seal 3 Q is made of carbon fiber composite material, and then the toothed disc with the seal 3 〇 will be installed. The connecting ends 11 and 12 are subjected to heat treatment, and since the sealing member is composed of the curved phase 1 and the material of the material, the system can achieve better effects by merging the two, so that the transfer cylinder 2 can be stably Restricted to the crank handle, not only can the transfer cylinder 20 be prevented from coming out of the accommodating hole 13 but also the crank can be avoided! A gap is generated between the adapter cylinder 20 and the adapter cylinder 20, so that the adapter cylinder 2 is loosened in the accommodating hole 丨Finally, the cranks after heating and cooling are subjected to surface rounding, grinding to avoid edges, replenishing unevenness, lacquering, etc., and finishing the music as shown in the fourth and fifth figures. Handle 1. Overall, the process of the present invention can be as shown in the sixth figure, and the detailed process is as follows: 1. New forming 4 Q: The carbon fiber composite material is placed in a mold and heated and pressed into a predetermined shape. Semi-finished product; -, 70 pieces of equipment 4 1 : The - adapter tube is installed in the semi-finished product; Second, the heat-sealing sealing 4 2: the semi-finished product of the adapter component is placed in a piece of firmware' Heat treatment to fuse the seal with the semi-finished product to prevent the tube from coming out. The above is only a preferred embodiment for transferring the present invention, and is not intended to impose any form of limitation on the present invention. Any modification or modification of the present invention made in the same spirit of creation should still be included in the scope of the present invention intended to be protected by 1330128. [Simplified description of the drawings] The first figure is an exploded view of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Figure 3 is a cross-sectional view of a crank of the present invention without a seal. The third view is a crank sectional view of the installed seal of the present invention. The fourth view is an external view of the present invention. Perspective view. The sixth figure is the present invention. Manufacturing flow chart. [Main component symbol description] I - Crank II - sprocket connection end 1 - accommodating hole 2 0 - Adapter barrel 3 0 - Sealing 4 1 - Component mounting 10 - Claw 12 - Foot Connection end 13 1-card groove 2 1-flange 4 0-Hot compression molding 4 2-Heat-sealing