448 1 1 4 A7 B7 五、發明說明（ 本發明係關於一種具高分子複合材料之自行車曲柄製 造方法，尤指一種其所生產出來之曲柄的重量輕，而且美 觀性佳又具有对衝擊效果之實两性方法者。 目前常見的自行車曲柄結構之製作過程：係先將紹合 金材料經過擠型、切斷等程序之後，再預先加熱至變形溫 度以上，並置於成型模治具當中鍛造出一實心的曲抦之輪 廓开》狀，再經過表面的修整、鑽孔及攻螺牙之後即完成一 曲柄成品。 但是，由於此種習用的曲柄製造方法所生產出來的曲 柄結構均為實心之型態’雖然其整體係以鋁合金材質所製 成，而且鋁合金材質的比重已經較不銹鋼材質或鑄鐵材質 的曲柄輕許多，但是其整體為實心之結構型態設計仍然會 造成曲柄多餘的贅重，而存在有重量過重的缺點，尤其’ 自行車結構所講求的是輕便而且操控性佳，所以曲柄多餘 的贅重會致使自行車整體之重量增加，而影響自行車之輕 便性及操控性能。 有鑑於此，本發明者乃設計出本發明具高分子複合材 料之自行車曲柄製造方法，藉以提供一種可生產出重量 輕’而且美觀性佳又具有耐衝擊效果的曲柄之製造方法 者。 本發明設計之主要目的係在於：提供一種其所生產出 來之曲柄的重量輕’而且美觀性佳又具有耐衝擊效果之自 行車曲柄製造方法，其係以空心锻造出曲柄，經表面修整 後再於曲柄外周之嵌鑲溝槽内塗覆接著劑及繞捲預浸過接 —-----—_____3 本紙張尺度適用中國國家標準(CNS)A4規格（21〇 X 297 S爱） ^ _一— '— -- )-^--------^--------- (請先閱讀背面之沒意事項再填寫本頁) 4 Α7 Β7 五、發明說明（>) 著劑的單向高分子複合材料，待以電熱裝置加熱硬化成型 後，再於曲柄的兩側面貼設編織布紋高分子複合材料及熱 縮，，並再次加熱硬化成型，因為單向高分子複合材料可 負荷半之叉力，所以其鋁合金材料部份可減少，而且曲 柄兩側面均貼設有編織布紋高分子複合材料’使其整體的 視覺效果及耐衝擊效果均可獲得提昇，藉以達到所生產出 來之曲柄重量輕、美觀性佳及耐衝擊效果佳之設計目的。 為使貴審查委員能更進一步瞭解本發明之設計方法 及實施步驟，茲附以圖式詳細說明如后： (一 圖式部份： (請先閱讀背面之注意事項再填寫本買) 裝 • n n n 第一圖 第二圖 第三圖 第四圖 第五圖 經濟部皆 係本發明之製造方法流程示意圖。 係本發明之流裎步驟示意圖（一）。 係本發明之流程步驟示意圖（二）。 係本發明之流程步驟示意圖（三）》 係本發明之流程步驟示意圖（四）。 (二）.圖號部份： (1 0 )曲柄 （1 1 )裝設孔 (1 2 )突緣 （1 3 )嵌鑲溝槽 (20)單向高分子複合材料 (3 0 )繞捲柱 （4 0 )環狀物 (5 0 )編織布紋高分子複合材料 (6 0 )模治具 本發明係關於一種具高分子複合材料之自行車曲柄製 造方法，請參看第一圖所示，其必須先以空心鍛造成型出 卜紙張尺度適用t國國家標準(CNS)A4規格（21〇>ΓϋΓ^· ----訂-------- 48 1 4 A7 B7 五448 1 1 4 A7 B7 V. Description of the invention (The present invention relates to a method for manufacturing a bicycle crank with a polymer composite material, especially a crank produced by the bicycle which is light in weight and has good appearance and impact on the impact. The current manufacturing process of the common bicycle crank structure: First, the Shao alloy material is subjected to extrusion, cutting and other procedures, and then it is heated to above the deformation temperature in advance, and placed in a molding die to forge a solid The contour of the curved cymbals is opened, and then the finished crank is completed after surface trimming, drilling, and tapping. However, the crank structures produced by this conventional crank manufacturing method are solid. 'Although the whole is made of aluminum alloy material, and the specific gravity of aluminum alloy material is much lighter than that of stainless steel or cast iron crank, but its solid structure design will still cause the crank to be redundant, However, there are disadvantages of being overweight, especially the bicycle structure requires lightness and good handling, so The excess weight will cause the overall weight of the bicycle to increase, affecting the portability and handling performance of the bicycle. In view of this, the inventor has devised the method for manufacturing a bicycle crank with a polymer composite material according to the present invention, so as to provide a method that can be produced. A method for manufacturing a crank that is light in weight and has good appearance and impact resistance. The main purpose of the design of the present invention is to provide a crank that is light in weight and has good appearance and impact resistance. A bicycle crank manufacturing method is to forge a crank from a hollow surface, and after the surface is trimmed, an adhesive is applied to the embedded grooves on the periphery of the crank and the coil is pre-dipped and wound. ----__ 3 This paper size Applicable to China National Standard (CNS) A4 specification (21〇X 297 S love) ^ _ 一 — '—-)-^ -------- ^ --------- (Please read first Please fill in this page on the back of the page) 4 Α7 Β7 V. Description of the invention (>) The unidirectional polymer composite material is heated and hardened by an electric heating device, and then woven cloths are attached to both sides of the crank Grain polymer composite material and Heat shrinking, and heating and hardening again, because the unidirectional polymer composite material can carry half of the fork force, the aluminum alloy material can be reduced, and woven fabric polymer composite material is attached to both sides of the crank. The overall visual effect and impact resistance can be improved, so as to achieve the design purpose of the produced crank with light weight, good appearance and good impact resistance. In order to allow your review committee to further understand the design method and implementation steps of the present invention, detailed drawings are attached as follows: (a schematic part: (Please read the precautions on the back before filling in this purchase) nnn The first diagram, the second diagram, the third diagram, the fourth diagram, and the fifth diagram are all schematic diagrams of the manufacturing method of the present invention. They are schematic diagrams of the steps of the present invention (1). They are schematic diagrams of the process steps of the present invention (two) Schematic diagram of the process steps of the present invention (three) "Schematic diagram of the process steps of the present invention (four). (Two). Figure number part: (1 0) crank (1 1) installation hole (1 2) flange (1 3) Inlay groove (20) Unidirectional polymer composite material (3 0) Winding column (4 0) Ring (50) Woven cloth pattern polymer composite material (60) Molding tool The invention relates to a method for manufacturing a bicycle crank with a polymer composite material, as shown in the first figure. It must first be produced by hollow forging. The paper size is applicable to the national standard (CNS) A4 specification (21〇 > ΓϋΓ). ^ · ---- Order -------- 48 1 4 A7 B7 Five
本紙張尺度適用中國國家標準(CNSM.4規格（2~^· X 297公釐） 發明說明（今） —紹合金材質的曲柄（10)，再配合參看第二圖所示， 该曲柄（1 0 )的内部係為空心，J_其靠近兩側端處分別 穿設有裝設孔（1 1 )，裝設孔（1 1 )中均攻製有螺 牙’以供分別與軸心及踏板裝設固定，而曲柄（1 〇 )的 外周底緣處朝向外突伸有突緣（1 2 )，使後曲柄（丄 0)的外周形成有嵌鑲溝槽（1 3 )’而且，為了求得曲 柄（1 0)製作完成後之尺寸精確度’必須先將曲柄（丄 〇)表面加工修整為正確尺寸，其後’預先在嵌鑲溝槽 (1 3)内塗覆具有高剪力強度的熱固性環氧樹脂高分子 接著劑，然後，將單向高分子複合材料（2 〇)預浸於接 著劑當中，再直接一圈一圈的繞捲於曲柄（1 〇)的嵌鑲 溝槽（1 3 )内，或者，亦可將預浸有接著劑的單向高分 子複合材料（2 〇 )呈一圈一圈的繞捲於兩繞捲柱（3 〇)之間，使之層疊圈繞而形成一環狀物（4〇)，然後 再以模治具對環狀物（4 〇)施以―推力而呈套設於曲柄 (1 0)的嵌鑲溝槽（i 3)内，最後，再以電熱裝置加 熱使接著劑與繞捲於嵌鑲溝槽（i 3 )内的單向高分 合材料（2 0)硬化成型； 又配合參看第四圖所示’再以兩呈對應於曲柄（工 0)輪廟形狀的編織布&高分子複合㈣（5 〇)分別貼 設於曲柄（1 0)的兩側面’然後再於其外部包覆有受熱 會收縮的熱縮套’並將整個曲柄（丄〇)置入模治具（6 0)内以電熱裝置加熱硬化成型，如第五圖所示。” 最後，再將於模治具内硬化成型過程之擠料修除This paper size applies the Chinese national standard (CNSM.4 specifications (2 ~ ^ · X 297 mm). Description of the invention (today)-Shao alloy crank (10), and with reference to the second figure, the crank (1 The internal system of 0) is hollow, and J_ is provided with mounting holes (1 1) near the ends on both sides, and the mounting holes (1 1) are threaded with threads for the purpose of connecting with the axis and The pedal is fixedly installed, and a flange (1 2) protrudes outward at the bottom edge of the outer periphery of the crank (10), so that an inset groove (1 3) is formed on the outer periphery of the rear crank (丄 0) ', and, In order to obtain the dimensional accuracy after the crank (1 0) is manufactured, the surface of the crank (丄 〇) must be processed and trimmed to the correct size, and after that, a high shear is coated in the inlay groove (1 3) in advance. Force-strength thermosetting epoxy polymer adhesive, and then, pre-immerse the unidirectional polymer composite material (20) in the adhesive, and then directly wrap around the crank (100) inlay. In the groove (1 3), or alternatively, the unidirectional polymer composite material (20) pre-impregnated with the adhesive can be wound in two turns in a circle. Between the rolls (30), they are stacked and wound to form a ring (40), and then the ring (40) is subjected to a `` thrust '' by a mold and is set on the crank ( 1 0) in the embedded groove (i 3), and finally, heating with an electric heating device to harden the adhesive and the unidirectional high-coupling material (20) wound in the embedded groove (i 3). With the reference to the fourth figure, 'there are two woven fabrics corresponding to the shape of the crank (work 0) wheel temple & polymer composite ㈣ (50) are attached to both sides of the crank (1 0)' Then, the outside is covered with a heat shrinkable sleeve which will shrink when heated, and the entire crank (丄 〇) is placed in a mold (60) and heated and hardened by an electric heating device, as shown in the fifth figure. "Finally , And then the extrusion of the hardening process in the mold will be repaired
Λ Α7 Β7 經濟部智慧財產局員 五、發明說明（ 去除掉曲柄（1 ο )表面之離型劑之後，即可塗上透明油 漆而完成成品。 另外，前述於曲柄（i 〇 )之兩側面分別貼設有編織 布紋向分子複合材料（5 0 )，並置入模治具（6 〇 )内 以電熱裝置加熱硬化成型的技術，亦可運用於自行車之四 爪片及五爪片上。 藉由上述之流程設計，使本發明具高分子複合材料之 自行車曲柄製造方法所生產出來的曲柄具有以下優點： 1. 所生產出來的曲柄重量輕：若以本發明所生產之曲 柄與習用整體為實心鋁合金材質的曲柄相比較，假設兩者 之結構強度相同，由於本發明所生產之曲柄 子複合材料可負荷一半之受力，所κ本發明所； 金材料部份較習用曲柄結構少，而且單向高分子複合材料 之比重又遠比鋁合金輕，所以本發明所生產之曲柄重量約 可減輕習用曲柄結構重量的四分之一左右。 2. 美觀性佳.由於其曲柄之兩側面均貼設有編織布咬 高分子複合材料，使其表面具有呈縱橫相互交錯之編織狀 紋路’以提昇其整體視覺上之美觀效果。 3. 耐衝擊效果佳：由於其曲柄之兩㈣糾設有編織 布紋高分子複合材料，而高分子複合材料本身即具備有極 佳之杬拉強度，所以當高分子複合材料呈縱橫相互交錯方 向編織時，不但可使其各方向之抗拉強度均佳，而且^ 時提昇其表面之耐衝擊效果β 5 4.生產效率佳：因為紹合金的加工性較高分子複合 本紙張尺度適财·家標準（CNS]A4規格⑽X视公爱-Λ Α7 Β7 Member of the Bureau of Intellectual Property, Ministry of Economic Affairs 5. Description of the invention (After removing the release agent on the surface of the crank (1 ο), you can apply transparent paint to complete the finished product. In addition, the two sides of the crank (i 〇) described above are respectively The technology of woven cloth grain oriented molecular composite material (50) is pasted and placed in a mold fixture (60) and heated and hardened by an electric heating device. It can also be applied to four-claw and five-claw pieces of bicycles. Based on the above process design, the crank produced by the method for manufacturing a bicycle crank with a polymer composite material according to the present invention has the following advantages: 1. The crank produced is light in weight: if the crank produced in the present invention is used as a whole, Comparing cranks made of solid aluminum alloy, assuming that the structural strength of the two is the same, because the crank composite produced by the present invention can bear half of the force, the kappa of this invention; the gold material part is less than the conventional crank structure, Moreover, the specific gravity of the unidirectional polymer composite material is much lighter than that of aluminum alloy, so the crank weight produced by the present invention can reduce the weight of the conventional crank structure by about four times. 1. The appearance is good. Because the two sides of the crank are provided with woven cloth biting polymer composite materials, the surface has a weave-like pattern that intersects with each other horizontally and vertically to enhance its overall visual aesthetic effect. 3. Good impact resistance: Because the two sides of the crank are provided with a woven fabric polymer composite material, and the polymer composite material itself has excellent tensile strength, when the polymer composite material crosses each other vertically and horizontally When weaving in the direction, not only can it have good tensile strength in all directions, but also improve its impact resistance on the surface β 5 4. Good production efficiency: because of the high processability of Shao alloy, the molecular composition of this paper is suitable for the scale · Home Standard (CNS) A4 Specification ⑽X as Public Love-
N)- ^--------t---------Μ), (請先閱讀背面之注意事項再填寫本頁) 五、發明說明（f) A7 B? 料佳，所以本發明先將鋁合金之曲柄加工完後，再於其夕f 周設置高分子複合材料的製造方法設計’可提昇曲柄之尺 寸精度’並提昇其生產的效率。 综上所述，以本發明具高分子複合材料之自行車曲柄 製造方法所生產出來的曲柄乃具有如上所述之優點，故本 發明誠為-極創新而且極具產業上利用效果之設計，應符 合發明專利要件，爰依法提出中請。 -----III Λ) i ---I--^---I 1 — II I ^ Ύ (請先閲讀背面之注意事項再填寫本頁) it 齊 本紙張尺度適用中國國家標準<CNS>A4規格（210 X 297公釐）N)-^ -------- t --------- M), (Please read the notes on the back before filling out this page) 5. Description of the invention (f) A7 B? Good material Therefore, in the present invention, after the crank of the aluminum alloy is processed, the manufacturing method of the polymer composite material is designed to improve the dimensional accuracy of the crank and improve the production efficiency. In summary, the crank produced by the method for manufacturing a bicycle crank with a polymer composite material of the present invention has the advantages described above. Therefore, the present invention is a highly innovative and industrially effective design. It meets the requirements of the invention patent, and submits a request in accordance with the law. ----- III Λ) i --- I-^ --- I 1 — II I ^ Ύ (Please read the notes on the back before filling out this page) it The paper size of this paper applies Chinese national standards < CNS > A4 size (210 X 297 mm)