1288100 九、發明說明： 【發明所屬之技術領域j 本發明自行車碳纖維曲柄之中空結構，主要是應用於 自行車曲柄的輕量化、增加強度及省料技術上。 【先前技術】 「按，前獲釣局核准公告，證書號數··第奶86179號 具有鐵芯之碳纖維自行車曲柄結構」新型專利前案，依 其申請專利範圍内容得知：其主要包含有··一金太 ，為-體細之薄體狀金屬，其兩端分別設有二第一結合 π及一第二結合部，係分別具有鏤空之預定幾何形狀;一 ，結合件，其具有可與該第一結合鏤空處相配合之預定 幾何形狀外緣，以卡固設置於該第一結合部；一第二結合 件，其具有可與該第二結合部鎮空處相配合之預定何形狀 外緣，以卡固設置於該第二結合部；藉由上述構件，配合 一複合材料層，係包覆於各該金屬本體、及第一、第二結 合件外緣預定雜，使形成—完整之自行車曲柄，俾能= 到輕量化，同時增加其曲柄強度。 =，上述「具有鐵芯之碳纖維自行車曲柄結構」新型 專利刚案，在實際應用時，卻仍然至少存在下列幾項尚待 克服解決的問題與缺失： ’ 一、 重量重，由於本體與第一及第二結合部均是由金 屬材質製成’而且製作出來的自行車曲柄為實心體，所以 重量比較重。 二、 強度弱，由於本體為一體成型之薄體狀金屬，所 1288100 以製作出來的自行車曲柄對於抗側壓力表現比較差。 一、浪費材料，由於製作出來的自行車曲柄為實心體 ’所以無法節省材料。 【發明内容】 本發明人目前從事相關產品的製造、設計，累積多年 的實務經驗與心得，針對上述「具有鐵芯之碳纖雄自行車 曲柄結構」新型專利前案，所既存的問題與缺失，積極地 投入創新與改良的精神，所完成的一自行車碳纖維曲柄之 • 中空結構？ 本發明解決重量重的問題所應用的技術手段，以及對 照先前技術的功效係在於：該自行車曲柄的本體係由碳纖 維材質製成，由於重量本來就比金屬材質輕，而且本體的 内部又特別設計成橢圓中空狀或結構性強之任何形狀，所 以製作出來的自行車曲柄重量相當輕。 本發明解決強度弱的問題所應用的技術手段，以及對 照先前技術的功效係在於··該自行車曲柄的本體在橢圓中 • 空狀内壁中間設有補強肋，所以製作出來的自行車曲柄對 於抗侧壓力表現相當強。 本發明解決浪費材料的問題所應用的技術手段以及對 照先前技術的功效係在於：該自行車曲柄的本體内部呈擴 圓中空狀，所以可以節省製作腳踏車曲柄所需的材料。 【實施方式】 為使專精熟悉此項技藝之人仕業者易於深入瞭解本發 明的裝置内容以及所能達成的功能效益，茲列舉一具體實 1288100 施例，並配合圖式詳細介紹說明如下： 一種自行車碳纖維曲柄之中空結構，敏請參閱第一、 二圖所示··係丰發明實施一、二之立體組合示意圖。與第 三圖所示：係本發明實施二之立體分解示意圖。以及第四 、五圖所不：係本發明實施二之俯視與侧視斷面組合示意 圖。自行車包括左右兩枝曲柄i、2，其中一枝曲柄工與 鏈輪盤6 0結合，兩枝曲柄1、2都是由一碳纖維材質製 成的中空本體;L 〇、二銘合金材質製成的第一套件2 〇、 φ 第二套件$ 0、環氧樹脂層4 0、碳纖維層5 〇製成；其 中·· ’、 本體1 0兩 二本體1 0的橫斷面呈扁平的橢圓形 端設有鏤空的套設部i ii 2，作為二套件2 〇、3 〇 套設之用，本體10中間内壁設有補強肋13; 第一套件2 0在一端的兩侧處設有複數個鋸齒狀凸部 21 ’可供緊密結合於上述中空本體！〇的套設部工工内 壁，該端的表©還設有透孔2 2，作為環·鴻層4⑽ 滿之用，第一套件2 〇在另一端設有結合孔2 3，結合孔 2 3外圍環繞設有複數等分的突齒2 4，作為環氧^ 40嵌合固定之用； 第二套件3 Q在-端的兩侧處設有複數個鱗狀凸部 31 ’可供緊密結合於上述中空本體；[〇的套設部12内 壁，該端絲面有航3 2，作為縣翻旨層4 〇填 滿之用，第二套件3 〇在另一端設有結合孔3 3，幹人 3 3外圍環繞設有複數等分的突齒3 4，作為環氧^層 .1288100 ‘0嵌合固定之用； 環氧脂層4 0結合於第一、第二套件2 0、3 0與 中空本體10的套設部11、12; 碳纖維層5 0係熱成型於第一、第二套件2 〇、3 〇 的外部。 藉由上述各結構所組合而成之本發明，係在提供一種 自行車碳纖維曲柄之中空結構，在實際製作時，敬請參閱 第六圖所示：係本發明實施二之製作流程示意圖。主要是 • 利用環氧樹脂層4 0，在一由碳纖維材質製成的中空本體 10兩端套設固定二由鋁合金材質製成的第一、第二套件 2 0、3 0，再於第一、第二套件2 〇、3 〇外部熱壓成 型包覆一碳纖雄層5〇〇 綜合上述所陳之本發明，係在提供一種自行車碳纖維 曲柄之中空結構，經過本發明人實際製作完成以及反覆操 作測試之後，證實的確可以達到本發明所預期的功能效益 ’同時又為目前坊間尚無見聞之「首先創作」，具有「產 φ 業上的利用價值」，誠然已經符合發明專利之成立要義， 菱依專利法之規疋’向釣局提出發明專利之申請。 【圖式簡單說明】 第一圖··係本發明實施一之立體組合示意圖。 第二圖·係本發明實施二之立體組合示意圖。 第三圖：係本發明實施二之立體分解示意圖。 第四圖：係本發明實施二之俯視斷面組合示意圖。 第五圖：係本發明實施二之側視斷面組合示意圖。 7 1288100 第六圖：係本發明實施二之製作流程示意圖 【主要元件符號說明】1288100 IX. Description of the invention: [Technical field to which the invention belongs] The hollow structure of the bicycle carbon fiber crank of the present invention is mainly applied to the lightweight, increased strength and material-saving technology of the bicycle crank. [Prior Art] "Pressing, the previous approval of the fishing bureau approval, certificate number · No. 86179 No. 86179 carbon fiber bicycle crank structure" new patent pre-report, according to the scope of its patent application: it mainly contains ··一金太, is a thin body-like metal with a thin body, two ends of which are respectively provided with two first joints π and a second joint portion, respectively having predetermined geometric shapes of hollowing out; a predetermined geometric outer edge matched with the first combined hollow portion to be fixed to the first joint portion; a second joint member having a predetermined fit with the second joint portion hollow space The outer edge of the shape is fixedly disposed on the second joint portion; and the composite material layer is coated on the outer surface of each of the metal body and the first and second joint members by the above-mentioned member, so as to form - Complete bicycle crank, = energy = to light weight, while increasing its crank strength. =, The above-mentioned new patent case of "carbon fiber bicycle crank structure with iron core", in practical application, still has at least the following problems and defects that have yet to be solved: '1. Heavy weight, due to the body and the first And the second joint is made of metal material and the bicycle crank is made of solid body, so the weight is relatively heavy. Second, the strength is weak, because the body is a thin body metal formed by the body, the bicycle crank produced by 1288100 has poor performance against the side pressure. First, wasted material, because the bicycle crank produced is a solid body, so it is impossible to save materials. SUMMARY OF THE INVENTION The present inventors are currently engaged in the manufacture and design of related products, accumulating practical experience and experience for many years, and aiming at the existing problems and lack of the above-mentioned "pre-existing patents for the carbon fiber male bicycle crank structure with iron core". The spirit of innovation and improvement, the completion of a bicycle carbon fiber crank • Hollow structure? The technical means applied by the present invention to solve the problem of heavy weight, and the effect against the prior art is that the system of the bicycle crank is made of carbon fiber material, the weight is inherently lighter than the metal material, and the interior of the body is specially designed. The shape of the elbow is hollow or structurally strong, so the weight of the bicycle crank produced is quite light. The technical means applied to solve the problem of weak strength of the present invention, and the effect according to the prior art is that the body of the bicycle crank is provided with a reinforcing rib in the ellipse in the ellipse, and the bicycle crank is made for the anti-side. The pressure is quite strong. The technical means to which the present invention solves the problem of wasting material and the effect on the prior art are that the inside of the body of the bicycle crank is expanded and hollow, so that the material required for making the crank of the bicycle can be saved. [Embodiment] In order to make it easy for a person skilled in the art to understand the skill of the art to have a deep understanding of the device content of the present invention and the functional benefits that can be achieved, a specific example 1288100 embodiment is listed, and the detailed description is as follows: A hollow structure of a bicycle carbon fiber crank, please refer to the first and second figures of the invention. As shown in the third figure, it is a perspective exploded view of the second embodiment of the present invention. And the fourth and fifth figures are not: a schematic view of the combination of the top view and the side view of the second embodiment of the present invention. The bicycle includes two left and right cranks i and 2, one of which is combined with the sprocket wheel 60, and the two cranks 1 and 2 are hollow bodies made of a carbon fiber material; L 〇, two Ming alloy materials The first set 2 〇, φ second set $ 0, epoxy layer 40, carbon fiber layer 5 ;; wherein ··, the body 10 2 two body 10 cross section of the flat elliptical end The hollow sleeves i ii 2 are provided as two sets of 2 〇 and 3 〇 sleeves, and the inner wall of the body 10 is provided with reinforcing ribs 13; the first set 20 has a plurality of serrations on both sides of one end The convex portion 21' can be tightly coupled to the hollow body described above! The inner wall of the arranging part of the rafter is also provided with a through hole 2 2 as a ring and a layer 4 (10), and the first set 2 〇 is provided with a coupling hole 2 3 at the other end, and the coupling hole 2 3 The outer circumference is provided with a plurality of halved teeth 24 for fixing the epoxy 40; the second set 3 Q is provided at both sides of the end with a plurality of scaly protrusions 31' for tight coupling The hollow body; [the inner wall of the sleeve portion 12, the end surface has a voyage 3 2, which is filled as a county layer 4 〇, the second set 3 〇 is provided at the other end with a coupling hole 3 3, dry The outer periphery of the person 3 3 is provided with a plurality of aliquots of the teeth 3 4 as an epoxy layer. 1288100 '0 for fitting and fixing; the epoxy layer 40 is combined with the first and second sets 20, 3 0 The carbon fiber layer 50 is thermoformed to the outside of the first and second sets 2, 3, and 3, with the sleeve portions 11 and 12 of the hollow body 10. The present invention, which is a combination of the above-described respective structures, provides a hollow structure of a bicycle carbon fiber crank. In actual production, please refer to the sixth drawing: a schematic diagram of the manufacturing process of the second embodiment of the present invention. Mainly: Using the epoxy resin layer 40, a first and a second set of 20, 30, made of aluminum alloy material are fixed on both ends of a hollow body 10 made of carbon fiber material, and then First, the second set 2 〇, 3 〇 external hot press forming a carbon fiber male layer 5 〇〇 integrated the above described invention, is to provide a hollow structure of bicycle carbon fiber crank, after the actual production of the inventors and After the repeated operation test, it is confirmed that the functional benefits expected by the present invention can be achieved. At the same time, it is the "first creation" that has not yet been seen in the market, and has the "utilization value of the production industry", which is already in line with the establishment of the invention patent. , Lingyi patent law regulations 疋 'application for invention patents to the fishing bureau. BRIEF DESCRIPTION OF THE DRAWINGS The first figure is a three-dimensional combination diagram of the first embodiment of the present invention. The second figure is a three-dimensional combination diagram of the second embodiment of the present invention. Third Figure: is a perspective exploded view of Embodiment 2 of the present invention. Figure 4 is a schematic cross-sectional view of a second embodiment of the present invention. Fig. 5 is a schematic view showing the combination of the side view sections of the second embodiment of the present invention. 7 1288100 Fig. 6 is a schematic diagram of the production process of the second embodiment of the present invention.
10 中空本體 1 2套設部 2 0 第一套件 2 2 透孔 24 突齒 3 0 第二套件 3 2 透孔 3 4 突齒 40環氧樹脂層 5 0碳纖維層 6 0鏈輪盤 11套設部 13補強肋 21 鋸齒狀凸部 2 3 結合孔 31 鋸齒狀凸部 3 3 結合孔10 hollow body 1 2 sleeve 2 0 first kit 2 2 through hole 24 protruding tooth 3 0 second kit 3 2 through hole 3 4 protruding tooth 40 epoxy layer 5 0 carbon fiber layer 6 0 chain wheel 11 set Portion 13 reinforcing rib 21 serrated protrusion 2 3 coupling hole 31 serrated protrusion 3 3 coupling hole