M337531 八、新型說明： 【新型所屬之技;^領域】 本創作係—種自行車曲柄中空結構，尤指-種使曲柄 同時具有易於製造、輕量化、良品率高之特別技術。 【先前技術】 我國公告431405號『自行車曲柄構造(二）』係揭示主 框體及副框體係由-體成型後，再以深孔加工，於一端向 • 另端至少挖設一槽孔，其中該槽孔與槽孔之間各設有-補 強肋’並於靠近頭部後方位置設一開口，該開口另由蓋片 覆蓋，再以焊接方式連結，形成一内部中空之完整曲柄， 除可有效增進曲柄之強度外，並藉此達成減輕重量之功 效’同時降低生產成本。 另我國公告431405號『自行車曲柄構造㈤』係揭示 曲柄柄身之頭部與尾部係為—體成型之結構，再以深孔加 • 工至少挖設一槽孔’並於柄身之一側邊設有-開口，該開 另由側蓋覆蓋’再以焊接方式連結，形成一内部中空 之完整曲柄，並藉此達成減輕重量之功效，同時降低生產 成本’又雜相部另設有預定數目之麵肋，使柄身内 部形成數個槽孔，可有效增加柄身的強度，延長主框體及 副框體之壽命。 縱觀該兩前案有以下缺點： 絲孔加卫會出現加卫不良率偏多問題，更需特 5 ^37531 別注意操作者稍匆忙及粗心、不慎、情緒不穩或技術不爛 熟者，均容易因此發生失誤率偏高狀況，導致加工中產生 、 不良°口便爲報廢，在加工率容易失誤以致報廢率增加狀況 、 ’不但縮減生產效率，且材料成本、讀成本無謂地減損 是為業者很大損失，令業者十分困擾。 二、其槽孔孔徑愈小、間隔設置數量愈多，所造成之 力口工困難度及成本便會大幅增加，故有無法經濟製造之缺 點。 一、由於深孔加工具有相當之困難度，所以槽孔之孔 仏也不可能太小，間隔設置之數量也不可能太多，所以其 減重效果仍有改善之空間。 本創作人有鑒於此，乃及經多方試驗設計，終成功創 作出本創作’以徹底解決上述兩前案所存在之問題。 【新型内容】 本創作係提供一種同時具有良品率高、易於製造、輕 量化之曲柄。 . /、係以上、下對置之主框體及副框體所組成，該主、 韻體係以-體成型製成n彳框體使表面積最大的表 面上下對置，並於該對置表面分別界定出凹入之框槽， 且令主、副框體之框槽能彼此對合的封閉連接成一體中空 之曲柄結構。 由於框槽係直接於主、副框體成型製造而成，深度較 M337531 淺而開口面積較大，所以較之上揭兩專利前案而言，可謂 具有容易製造及良品率高之優點，且減重及降低材料成本 又更佳。 為使貴審查委員能進一步瞭解本創作之結構，特徵 及其他目的，玆附以較佳實施例之圖式詳細說明如后： 【實施方式】 凊參閱弟一、二圖；本創作係由可上、下對置之主框 • 體（1 0 )及副框體（2 0 )組成·， 該主、副框體（1〇)(2 0)係採塑膠物料、碳纖 維、金屬材料··等等任一材料一體成型而製成，主、副 框體（1〇) (2 0)使表面積最大的表面（11) ( 2 1)上、下對置，並於該對置表面（工工）（2工）分別 界定出一凹入之框槽（12)(22)，其主框體（1〇) 之框槽（12)形狀恰足可供副框體（2 〇)外周容置， • 並使主框體（1〇)之表面（11)與副框體（2 〇)另 —表面（210)切齊的定位，藉由彼此緊配合、高週波 • 或點焊··等等任一固定方式，令主、副框體（10) (2 〇)之框槽（12)(2 2)能彼此對合的封閉連接成一 體中空之曲柄結構； 其主框體（1〇)於一端緣預先成型有上下貫穿之栓 孔（13)，而副框體（2 〇)則成型有與栓孔（丄3) 對接之栓孔座（2 3 )，該栓孔（1 3 )及栓孔座（2 3 ) 7 "M337531 * * 恰可供中天心軸安裝；同理，其主框體（工〇 )亦可由检 孔（13)延設出與副框體（2 〇)栓孔座（2 3)對接 之检孔座（圖中未示）； 錄主框體（1〇)於另—端緣則預先成型有上下貫 穿之鎖孔（1 4 ) ’而副麵（2 〇 )則成型有與鎖孔（工 4)對接之鎖孔座（2 4)，該鎖孔（丄4)及鎖孔座（2 4)恰可供踏板組裝；同理，其主框體（丄〇)亦可由鎖 • 孔（14)延設出與副框體（2 0)鎖孔座（2 4)對接 之鎖孔座（圖中未示）。 由以上之結構說明得知本創作至少具有如下優點： 一、本創作主框體（1 〇 )及副框體（2 0 )之框槽 (1 2)( 2 2)由於具有開口大、深度較淺之結構特色， 所以相當利於-體成型製造，故而具有容易製造之特點。 二、 承第一項所述，由於本創作框槽（i 2 ) (2 2 ) # 戶斤具有之開口大、深餘淺結構特色，使得本創作在成型 製造時，其壁厚相當利於控制至所需之尺寸，不容破 ._構性之纽產生，且能避免操作者_忙及粗心、不 慎、情緒不穩或技術不嫻熟所造成的失誤率。 三、 本創作由於框槽（12)(22)是分別凹設於 主、副框體（1 〇 )( 2 〇 )表面積最大的表面 (2 1)，足喊所組裝之巾“柄輕量化要求能達到最 輕的狀態。 8 M337531 、月另外參閱第二圖，其係本創作第二實施例，該實 施例主要說明本創作主、副框體（1Q)( 2 Q)可於检 孔（13)、栓孔座（2 3)之端緣環狀設置爪狀之齒盤 座（15) (25)，齒盤座（15) (25)外周緣則 具有可固接齒盤讀裝孔（16) (2 6)，而本創作於M337531 VIII. New description: [New technology]; Field] This is a kind of bicycle crank hollow structure, especially the special technology that makes the crank easy to manufacture, lightweight, and high yield. [Prior Art] China's Announcement No. 431405 "Bicycle crank structure (2)" reveals that the main frame and the sub-frame system are formed by the body, and then processed by deep holes, and at least one slot is drilled at one end and the other end. A fixing rib is disposed between the slot and the slot, and an opening is disposed adjacent to the rear of the head. The opening is additionally covered by the cover sheet and then joined by welding to form an inner hollow complete crank. Effectively increase the strength of the crank, and thereby achieve the effect of reducing weight 'while reducing production costs. In addition, China's Announcement No. 431405 "Bicycle crank structure (5)" reveals that the head and tail of the crank handle are formed into a body-shaped structure, and then at least one slot is drilled in the deep hole and the workmanship is on one side of the handle body. It is provided with an opening which is covered by the side cover and then joined by welding to form an inner hollow complete crank, thereby achieving the effect of reducing the weight and reducing the production cost, and the predetermined number of the miscellaneous parts is further provided. The ribs of the face form a plurality of slots in the inside of the handle body, which can effectively increase the strength of the handle body and prolong the life of the main frame body and the sub-frame body. Throughout the two previous cases, there are the following shortcomings: The hole hole will have a problem of increasing the rate of non-performing, and it is more necessary to pay attention to the operator's rush and carelessness, carelessness, emotional instability or unskilled technology. Therefore, it is easy to cause a high error rate, resulting in a bad result in processing, such as scrapping, the processing rate is easy to make mistakes, resulting in an increase in scrap rate, 'not only reducing production efficiency, but also material cost, reading cost is unnecessarily degraded. The industry is very troubled by the great losses for the operators. Second, the smaller the aperture of the slot and the more the number of intervals are set, the difficulty and cost of the force will increase greatly, so there is a lack of economical manufacturing. First, because the deep hole processing has considerable difficulty, the hole of the slot can not be too small, and the number of interval settings is not too much, so there is still room for improvement in the weight reduction effect. In view of this, the creator and the multi-party experimental design have succeeded in creating this creation to completely solve the problems in the above two previous cases. [New Content] This creation provides a crank with high yield, easy to manufacture, and lightweight. /, is composed of a main frame and a sub-frame opposite to the upper and lower sides, and the main and rhyme system is formed into a frame by the body to make the surface having the largest surface area face up and down, and on the opposite surface The concave frame grooves are respectively defined, and the frame grooves of the main and sub-frames can be closed to each other to form an integrated hollow crank structure. Since the frame groove is directly formed on the main and sub-frames, the depth is shallower than that of the M337531 and the opening area is larger. Therefore, compared with the previous patents, it has the advantages of easy manufacture and high yield, and Weight loss and lower material costs are better. In order to enable the review board to further understand the structure, features and other purposes of the present invention, the drawings of the preferred embodiments are described in detail as follows: [Embodiment] 凊 Refer to the first and second pictures; Main frame of upper and lower opposite body • Body (1 0 ) and sub-frame (2 0 ). The main and sub-frames (1〇) (20) are made of plastic materials, carbon fiber, and metal materials. And any material is integrally formed, and the main and sub-frames (1〇) (20) upper and lower surfaces (11) (2 1) having the largest surface area, and on the opposite surface Workers (2 workers) respectively define a concave frame groove (12) (22), and the frame groove (12) of the main frame body (1〇) is just enough for the outer frame body (2 〇) outer circumference Set, • and position the surface (11) of the main frame (1〇) and the sub-frame (2 〇) and the surface (210), by tight fit, high frequency, or spot welding·· And any fixed manner, so that the frame slots (12) (2 2) of the main and sub-frames (10) (2 〇) can be closed to each other to form a hollow hollow structure; the main frame body (1) 〇) in advance at one end The type has a bolt hole (13) penetrating up and down, and the sub-frame (2 〇) is formed with a bolt hole seat (23) that is butted against the bolt hole (丄3), the bolt hole (13) and the bolt hole seat (2 3 ) 7 "M337531 * * It can be used for the installation of the Zhongtian mandrel; for the same reason, the main frame body (worker) can also be extended from the inspection hole (13) and the sub-frame (2 〇) bolt hole seat (2 3) docking inspection hole seat (not shown); recording the main frame body (1〇) on the other end edge is pre-formed with a keyhole (1 4) through the top and bottom and the secondary surface (2 〇) Then, a keyhole seat (2 4) that is butted against the keyhole (work 4) is formed, and the lock hole (丄4) and the keyhole seat (24) are just for the pedal assembly; similarly, the main frame body (丄) 〇) The lock hole (not shown) can be extended from the lock hole (14) to the sub-frame (20) keyhole seat (24). According to the above structural description, the present invention has at least the following advantages: 1. The frame slot (1 2) (2 2) of the main frame (1 〇) and the sub-frame (20) of the present creation has a large opening and a depth. The shallower structural features make it quite advantageous for body-molding and therefore easy to manufacture. 2. According to the first item, because the creation frame slot (i 2 ) (2 2 ) # has a large opening and deep and shallow structure, the wall thickness of the creation is quite favorable for control. To the required size, it is not allowed to break. _ The structure of the bond is generated, and can avoid the operator's _ busy and careless, careless, emotionally unstable or technically unpredictable. 3. This creation is because the frame grooves (12) and (22) are respectively recessed on the surface (2 1) with the largest surface area of the main and sub-frames (1 〇) (2 〇), and the towel is assembled. It is required to achieve the lightest state. 8 M337531, month, please refer to the second figure, which is the second embodiment of the present creation, which mainly illustrates that the main and sub-frames (1Q) (2 Q) of the creation can be inspected. (13) The end edge of the bolt hole seat (23) is annularly provided with a claw-shaped toothed disc holder (15) (25), and the outer circumference of the toothed disc holder (15) (25) has a shackle-mounted reading. Hole (16) (2 6), while this creation was
齒盤座（15) (25)對合面亦具有框槽（12) (2 2) ’如此便能使該等具齒盤座（15) (25)之曲柄 重量較習用結構更形減輕。 煩請參看第四〜五圖’其係說明本創作主框體（工〇 ) 可於框槽（1 2 )内之賴觀伸有可夾合於副框體（2 〇)框槽（2 2)内侧之夾掣部（17)，用以強化主、副 框體（1〇 )(2 〇)結合之結構強度，而此爽擎部（工 7 )之長、短或形狀只須不造成主、副框體（i 〇 ) ( 2 〇 ) 之干涉配合即可。 請配合第六圖觀之，其係本創作第五實施例，主要說 明主、副框體（10) (20)之框槽（12) (22 形狀可為-致，以使兩者之表面（ιι) (2ι)得以直 接對接的結合成―體，其亦屬本創作之等效創作。 "第九圖’其主要說明本創作可於副麵（2 〇)之框槽（22)中—體成型的連設有補強肋（27)， 此等補強肋（2 7)可形成如第七及人圖所示之矩形減重 槽，或第九_示之蜂巢形減重槽’具體而言，該等= 9 M337531 4 ι 槽形成可以任意幾何變化，只須使補強肋（2 7)能在符 合減重要求下，仍具有效傳導運動力量、良好吸震性、強 度佳之諸多優點，同理，主框體（10)之框槽（12) 中亦可一體成型的連設有補強肋（圖中未示），以便強化對 置後之曲柄框槽（1 2 )( 2 2 )剛性。至於第十圖則是更 進一步的說明本創作補強肋（2 7)可以直接形成塊體的 容置於框槽（12)( 2 2 )中，並使栓孔座（2 3)及鎖 • 孔座（2 4)與副框體（2 0)分離而直接設置於該塊體 中，該實施例確與第七〜九圖等效。 如第十一、十二圖所示，本創作主、副框體（丄〇) (2 0)可以相對設置之鎖孔（丄8)、鎖座（2 8)而 提供螺栓（3 〇)直接鎖接於鎖座（2 8)，以使該主、 田J框體（1 Q )能彼此對置的連接；至於第十三圖則是進 一步的以螺栓（3 0)及螺帽（3 i)所組成之扣件組而 ® 將主、副框體（10)彼此對置的連接。 綜上所述，本創作在現有之此類結構之中可以說是前 所未見，該結構可使曲柄同時具有減重、降低製造困難度、 、 ~加良品率之優點，故本創作較之制結構更具有實質功 能之增進，應符新型專利申請要件，妥依法提出申請。、惟 以上所述者，僅為本創作之一較佳實施例而已，當不能以 之限定本創作實施之範圍，即大凡依本創作中請二二 所作之均賴化與修飾，皆應仍屬本創伽蓋之範圍内。 崩37531 【圖式簡單說明】 第一圖：係本創作之立體分解示意圖。 第二圖：係本創作之組合剖面示意圖。 * 第三圖：係本創作第二實施例示意圖。 第四圖：係本創作第三實施例示意圖。 第五圖：係本創作第四實施例示意圖。 第六圖：係本創作第五實施例示意圖。 I 第七圖：係本創作第六實施例示意圖。 第八圖：係本創作第七實施例示意圖。 第九圖：係本創作第八實施例示意圖。 第十圖：係本創作第九實施例示意圖。 第十一圖：係本創作第十實施例示意圖。 第十二圖：係本創作第十一實施例示意圖。 第十三圖：係本創作第十二實施例示意圖。 赢 【主要元件符號說明】 (10)主框體 (12)框槽 (1 4)鎖孔 (16)組裝孔 (1 8 )鎖孔 (2 0)副框體 (210)另一表面 (11)表面 (13)栓孔 (15)齒盤座 (17)夾掣部 (21)表面 (2 2)框槽 11 M337531 缠 » (2 3)栓孔座 (2 5)齒盤座 (27)補強肋 ’ (3 0 )螺栓 (2 4)鎖孔座 (2 6)組裝孔 (2 8)鎖座 (31)螺帽The toothed seat (15) (25) also has a frame groove (12) (2 2) ' on the mating face so that the crank weight of the toothed seat (15) (25) is more reduced than that of the conventional structure. Please refer to the fourth to fifth figure's description of the main frame of the creation (work). The frame can be clamped to the sub-frame (2 〇) frame slot in the frame slot (1 2 ) (2 2 The inside of the clamping part (17) is used to strengthen the structural strength of the combination of the main and sub-frames (1〇) (2 〇), and the length, shortness or shape of the cool part (work 7) only needs to be Interference fit between the main and sub-frames (i 〇) ( 2 〇). Please cooperate with the sixth figure, which is the fifth embodiment of the present creation, mainly explaining the frame groove (12) of the main and sub-frames (10) (20) (22 can be shaped to make the surface of the two (ιι) (2ι) can be directly combined into a body, which is also the equivalent creation of this creation. "The ninth figure' mainly explains that the creation can be in the frame of the secondary side (2 〇) (22) The medium-body forming joint is provided with reinforcing ribs (27), and the reinforcing ribs (27) can form a rectangular weight-reducing groove as shown in the seventh and the human figure, or the ninth-shown honeycomb-shaped weight-reducing groove Specifically, the formation of the = 9 M337531 4 ι groove can be arbitrarily changed in geometry, and the reinforcing rib (27) can still have the advantages of effective transmission movement force, good shock absorption, and good strength under the weight reduction requirement. Similarly, the frame groove (12) of the main frame body (10) may be integrally formed with a reinforcing rib (not shown) to reinforce the opposite crank frame groove (1 2 ) ( 2 2 Rigidity. As for the tenth figure, it is further explained that the original reinforcing rib (27) can directly form the block in the frame groove (12) (2 2 ) and make the plug The socket (23) and the lock/hole (2 4) are separated from the sub-frame (20) and directly disposed in the block. This embodiment is equivalent to the seventh to ninth figure. As shown in the twelve figures, the main and sub-frames (2) of the creation can be directly locked to the lock holes (丄8) and the lock seats (28) with the bolts (3 〇). The lock seat (28) is such that the main and the field J frame (1Q) can be opposite each other; as for the thirteenth plan, the bolt (30) and the nut (3 i) are further The set of fasteners and the connection of the main and sub-frames (10) to each other. In summary, the creation can be said to be unprecedented in the existing structure, the structure can make the crank At the same time, it has the advantages of weight reduction, reduced manufacturing difficulty, and good yield. Therefore, this creation has more substantial functions than the structure, and should meet the requirements of new patent applications, and apply in accordance with the law. It is only a preferred embodiment of this creation. When it is not possible to limit the scope of the implementation of this creation, that is, the average and the repairs made by the applicant in this creation. It should still be within the scope of this creation. Collapse 37531 [Simple description of the diagram] The first picture: the three-dimensional decomposition diagram of the creation. The second picture: a schematic diagram of the combination of the creation. * The third picture: A schematic diagram of a second embodiment of the present invention is shown in the following. Fig. 4 is a schematic view showing a third embodiment of the present creation. Fig. 5 is a schematic view showing a fourth embodiment of the present creation. Figure 7 is a schematic diagram of the sixth embodiment of the present creation. The eighth figure is a schematic diagram of the seventh embodiment of the present creation. The ninth diagram is a schematic diagram of the eighth embodiment of the present creation. Fig. 11 is a schematic view showing a tenth embodiment of the present creation. Twelfth Diagram: A schematic diagram of an eleventh embodiment of the present creation. Thirteenth Diagram: A schematic diagram of the twelfth embodiment of the present creation. Win [Main component symbol description] (10) Main frame body (12) Frame slot (1 4) Lock hole (16) Assembly hole (1 8) Lock hole (20) Sub-frame (210) The other surface (11 ) Surface (13) Bolt hole (15) Cutter seat (17) Clamping part (21) Surface (2 2) Frame groove 11 M337531 Wrap » (2 3) Bolt hole seat (2 5) Cutter seat (27) Reinforcement rib ' (3 0 ) bolt (2 4) keyhole seat (2 6) assembly hole (2 8) lock seat (31) nut
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