M429648 五、新型說明： 【新型所屬之技術領域】 * 本創作係有關於一種自行車曲柄之组裝結構，尤指該曲柄與 . 心軸之一種組裝結構的改良。 【先前技術】 按，習知自行車曲柄組裝結構，請配合參閱第6、γ圖所示， 該曲柄（30)係由一侧橫向穿設之組結孔（31)與心軸（32)穿接定 鲁位，而該曲柄⑽)端緣係凸設有一凸部(3!1)，並貫通至組結孔⑶) s又有一剖槽(312) ’且凸部(311)另橫向通過剖槽(312)設有一螺孔 (313)，並配合一鎖件(3Η)加以螺鎖固定，令該曲柄（3〇〉藉由鎖 件(314)螺鎖迫緊剖槽(312)達到固定狀態者，藉以俾完成曲柄(3〇) 與心軸(32)之組裝。 然而’‘詳觀上述習知結構不難發覺其缺點之處，主要原因係 歸如下：該曲柄（30)係以内徑呈平滑狀之組結孔(31)與心軸（32) 鲁穿接定位，僅再提供一鎖件(3⑷鎖固於凸部(311)之螺孔(313)處 形成固定’使該結構組成之穩定性不佳，容易造成曲柄(3〇)由心 轴(32)脫落之情事者，且該用以迫緊固定之凸部⑽）亦容易因使 用者的騎乘過程中碰撞而受傷，形成該結構組成之缺失者。 有鑑於此，創作人本於多年從事相關產品之製造開發與設計 、’·!驗’針對上述之目標，詳加設計與審慎評估後，終得一確具實 甩性之本創作。 【新型内容】 欲解決之技術問題點： 14曲柄係叫傻呈平滑狀之组結孔細軸穿接定位，僅再 7 一耕細於凸部之螺孔處形成固定，錢結構組成之穩定 不佳，谷易造成曲构由心轴脫落之情事者，且該用以迫緊固定 I5亦4因朗麵躲過財碰撞喊傷，形成該結構組 、之缺失’此乃為本創作欲解狀技_題點者。 解決問題之技術特點： 一-種自行車曲柄之組裝結構，其包含：―心軸、二曲柄以及 -束套’-心軸兩側端係分別形成一組接部，而該組接部係分別 於周緣端面軸向凹設有數_淺槽，且兩側組接部頭端中央處係 向内穿設有螺孔，並分別提供設有—螺鎖件，二曲柄係分別與心 2兩側之組接部形雜設，該二_係分別由柄體上端設有一中 工之穿套部，該穿套部係為—中空之圓柱體，腿外緣中段處設 有一環槽，該環槽與柄_具有—貫通槽孔，而該f套部係由外 端面向内設有-觸，穿套勒緣㈣依序凸設有複數條嵌 接凸肋，二束套係分別提供嵌套於曲柄之穿套部上，該束套係具 有一嵌入開口，並於開口處配合螺設有一鎖件，藉由上述結構， 俾能完成一種自行車曲柄之組裝者。 對照先前技術之功效： 本創作之曲柄係分別以穿套部配合一束套固定於心軸兩側之 組接部上，並配合鎖件鎖結迫緊，且該束套係配合嵌設於穿套部 之環槽内，而配合螺鎖於束套之鎖件亦限制於柄體與穿套部間之 M429648 貫通槽孔内，令該曲柄不僅能緊固配合組設於心軸上，其組設後 之固定部位亦能完全被隱藏以防止使用者抵碰受傷者，兼具使用 之安全性者。 【實施方式】 為使貴審查委員對本創作之目的、特徵及功效能夠有更進 一步之瞭解與認識’以下茲請配合【圖式簡單說明】列舉實施例， 詳述說明如后： 首先’先請參閱第1、2圖所示’一種自行車曲柄之組裝結構， 其包含：一心軸（1〇)、二曲柄（2〇)以及二束套(3〇)，一心軸（1〇) 兩側端係分別形成一組接部（11)，而該組接部(11)係分別於周緣 端面轴向凹設有數嵌接淺槽（ηι)，且兩側組接部(111)頭端中央 處係向内穿設有螺孔（112)，並分別提供設有一螺鎖件（12)，二曲 柄(20)係分別與心軸（1〇)兩侧之組接部（⑴形成組設，該二曲柄 (20)係分別由柄體(21)上端設有一中空之穿套部（22)，該穿套部 (22)係為一中空之圓柱體，且於外緣中段處設有一環槽(221)，該 環槽(221)與柄體(21)間具有一貫通槽孔(211)，而該穿套部(22) 係由外端面向内設有一剖槽（222)，又該穿套部（22)内緣壁係依序 凸設有複數條喪接凸肋（223)，其穿套部（22)内徑中段處係另凸設 形成一限位壁（224)，而穿套部（22)内壁緣凸設之嵌接凸肋（223) 則另由限位壁（224)延伸而成者’二束套(3〇)係分別提供嵌套於曲 柄（20)之穿套部（22)上，該束套(30)係具有一嵌入開口（31)，並 於喪入開口（31)處提供一鎖件(32)螺鎮迫緊。 5 M429648 其結構之組成，再請參閱第2、3圖配合第4、5圖所示，該 二曲柄（20)係分別以穿套部（22)組設於心軸（1〇)兩側之組接部 (11)上，而當穿套部（22)配合套於組接部（11)時，即利用嵌接凸 肋（223)與組接部（η)之嵌接淺槽（in)相互卡嵌限位，再將一螺 鎖件（12)由穿套部（22)外側開孔鎖入與心軸（iq)之螺孔（ία)螺 鎖結合’並使螺鎖件（12)之端部受限位壁（224)擋靠限制，最後再 將一束套(30)套於穿套部（22)之環槽(221)處，並使嵌入開口（31) 處於穿套部（22)與柄體(21)間之貫通槽孔(211)，再將鎖件(32)鎖 入連揍，使該束套(30)逐漸被鎖靠進而迫緊穿套部（22)，令該穿 套部（22)因剖槽（222)而又被束緊限縮，俾使嵌接凸肋（223)與組 接部（11)之嵌接淺槽（111)更為緊密嵌固，藉此即完成曲柄（2〇)與 心軸（10)之組裝者。 藉由上述具體實施例之結構，可得到下述之效益：本創作之 曲柄(20)係分別以穿套部（22)配合一束套（3〇)固定於心軸（1〇)兩 側之組接部（11)上，並配合鎖件(32)鎖結迫緊，且該束套(3〇)係 配合嵌設於穿套部（22)之環槽（221)内，而配合螺鎖於束套(3〇)之 鎖件（32)亦限制於柄體（21)與穿套部（22)間之貫通槽孔（211) 内，令該曲柄（20)不僅能緊固配合組設於心軸（1〇)上，其組設後 之固定部位亦能完全被隱藏以防止使用者抵碰受傷者，兼具使用. 之安全性者。 综上所述’本創作確實已達突破性之結構設計，而具有改良 之創作内容，同時又能夠達到產業上之利用性與進步性，且本創 作未見於任何，亦具新_，當符合專 羑依法提出新刑室心▲ 關法條之規定 利 ^ 4新型專利申請，赌韵局審查委員授予合法專 權，至為感禱。 唯以上所述者，僅為本創作之—触實細而已，當不能以 之限定本創作實施之翻；g卩大凡依本創作巾請專利顯所作之 均等變化與修飾，皆應仍屬本創作專利涵蓋之範圍内。 M429648M429648 V. New description: [New technical field] * This creation is about the assembly structure of a bicycle crank, especially the improvement of an assembly structure of the crank and the mandrel. [Prior Art] According to the conventional bicycle crank assembly structure, please refer to the sixth and γ diagrams. The crank (30) is worn by the coupling hole (31) and the mandrel (32) which are transversely disposed on one side. The lug is fixed, and the end of the crank (10) is convexly provided with a convex portion (3! 1) and penetrates to the assembly hole (3)) s and has a slit (312)' and the convex portion (311) is laterally passed The slot (312) is provided with a screw hole (313) and is screwed and fixed with a locking member (3Η), so that the crank (3〇) is tightened by the locking member (314) and the slot (312) is tightened. The fixed state is used to complete the assembly of the crank (3〇) and the mandrel (32). However, it is not difficult to find out the shortcomings of the above-mentioned conventional structure. The main reason is as follows: The crank (30) The assembly hole (31) having a smooth inner diameter is rigidly connected to the mandrel (32), and only one lock member (3 (4) is fixed to the screw hole (313) of the convex portion (311) to form a fixed portion. The stability of the structural composition is not good, and it is easy to cause the crank (3 〇) to fall off from the mandrel (32), and the convex portion (10) for tightening is also easy to be hit by the user during riding. Injured, shaped In view of this, the creator has been engaged in the manufacturing development and design of related products for many years, and the '·! inspection' has been designed and carefully evaluated. The creation of ambiguity. [New content] Technical problems to be solved: 14 The crank is called a silly smooth-shaped combination hole, and the fine shaft is pierced and positioned, and only 7 cultivating is fixed at the screw hole of the convex portion. The stability of the structure of the money structure is not good, and Gu Yi causes the situation that the curve is broken off from the mandrel, and it is used to force the fixed I5. 4 Because the Lang face escapes the financial collision, the formation of the structural group is missing. This is the technical solution for the creative problem. The technical features of the problem: One-piece bicycle crank assembly structure, including: "mandrel, two cranks and - bundles" - both ends of the mandrel Forming a plurality of joints respectively, wherein the set of joints are respectively provided with a plurality of shallow grooves in the axial direction of the peripheral end surface, and screw holes are formed in the center of the head ends of the joint portions of the two sides, respectively, and are respectively provided with - screw lock, the two cranks are respectively connected with the joints on both sides of the heart 2 The second _ series is respectively provided with a middle-wearing sleeve portion at the upper end of the handle body, the sleeve portion is a hollow cylinder, and a ring groove is arranged at a middle portion of the outer edge of the leg, and the ring groove and the handle have a through-through a slot hole, and the f sleeve portion is provided with an inner touch surface, the wear sleeve edge (four) is sequentially convexly provided with a plurality of inlaid ribs, and the two bundle sleeves respectively provide a sleeve portion nested in the crank. In the above, the sleeve has an insertion opening, and a locking member is arranged on the opening. With the above structure, the assembly of the bicycle crank can be completed. According to the prior art, the crank of the creation is respectively The sleeve is fixed to the assembly on both sides of the mandrel with a sleeve, and is tightly coupled with the lock, and the sleeve is fitted in the ring groove of the sleeve portion, and the screw is locked The locking member of the sleeve is also limited to the M429648 through slot between the handle body and the sleeve portion, so that the crank can not only be fastened and assembled on the mandrel, but also the fixed portion after the assembly can be completely hidden. Prevent users from coming into contact with the injured and have the safety of use. [Embodiment] In order to enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this creation, please refer to the following for a brief description of the following examples. Refer to the assembly structure of a bicycle crank shown in Figures 1 and 2, which includes: one mandrel (1〇), two cranks (2〇), and two sets (3〇), one mandrel (1〇) on both sides A plurality of joints (11) are respectively formed, and the joints (11) are respectively axially recessed with a plurality of inlaid shallow grooves (ηι) at the peripheral end faces, and the ends of the head ends of the two side joint portions (111) A screw hole (112) is provided inwardly, and a screw lock member (12) is respectively provided, and the two crank handles (20) are respectively formed with the joint portions on both sides of the mandrel (1), and (1) is formed. The two cranks (20) are respectively provided with a hollow sleeve portion (22) at the upper end of the handle body (21), the sleeve portion (22) is a hollow cylinder body, and a ring is arranged at the middle portion of the outer edge. a slot (221), the ring groove (221) and the handle body (21) have a through slot (211), and the sleeve portion (22) is provided with a slot (222) from the outer end surface. The inner wall of the sleeve portion (22) is sequentially provided with a plurality of splicing ribs (223), and a middle portion of the inner diameter of the sleeve portion (22) is further convexly formed to form a limiting wall (224). The engaging ribs (223) protruding from the inner wall edge of the sleeve portion (22) are further extended by the limiting wall (224), and the two sleeves (3〇) are respectively provided to be nested in the crank (20). On the sleeve (22), the sleeve (30) has an insertion opening (31) and a locking member (32) is provided at the entrance opening (31). 5 M429648 For the composition, please refer to Figures 2 and 3, as shown in Figures 4 and 5, the two cranks (20) are respectively assembled at the joints on both sides of the mandrel (1〇) by the sleeve portion (22). 11) upper, and when the sleeve portion (22) fits over the assembly portion (11), the engagement ribs (223) are engaged with the engagement shallow grooves (in) of the assembly portion (η). Limiting, and then locking a screw (12) from the outer opening of the sleeve (22) into the screw hole of the spindle (iq) and making the end of the screw (12) The restricted wall (224) is restrained, and finally a sleeve (30) is placed over the ring groove (221) of the sleeve portion (22). The insertion opening (31) is placed in the through slot (211) between the sleeve portion (22) and the handle body (21), and the lock member (32) is locked into the chain, so that the sleeve (30) is gradually locked. By tightening the sleeve portion (22), the sleeve portion (22) is tightened and contracted by the slot (222), so that the engaging rib (223) and the assembly portion (11) are The inlaid shallow groove (111) is more closely embedded, thereby completing the assembly of the crank (2〇) and the mandrel (10). By the structure of the above specific embodiment, the following benefits can be obtained: The cranks (20) are respectively fixed on the assembly portions (11) on both sides of the mandrel (1) by a sleeve (22) and a sleeve (3), and are locked with the lock member (32). Tightening, and the sleeve (3〇) is fitted in the ring groove (221) of the sleeve portion (22), and the lock member (32) that is screwed to the sleeve (3〇) is also limited to The through hole (211) between the handle body (21) and the sleeve portion (22) allows the crank (20) to be fastened not only on the mandrel (1〇) but also after being assembled. The part can also be completely concealed to prevent the user from colliding with the injured person and the safety of the use. In summary, 'this creation has indeed achieved a breakthrough structural design, and has improved creative content, while at the same time achieving industrial use and progress, and this creation is not seen in any, but also has a new _, when it meets Dedicated to the new criminal court in accordance with the law ▲ the provisions of the law of the law, 4 new patent applications, the gambling bureau review committee granted legal privilege, to the pray. Only the above-mentioned ones are only for the purpose of this creation--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- The scope of the creation of the patent is covered. M429648
【圖式簡單說明】 第1圖：係為本創作之立體圖。 第2圖：係為本創作之分解圖。 第3圖：係為本創作之前視圖。 第4圖：係為本創作之A-A’方向剖視圖 第5圖：係為本創作之B-B’方向剖視圖 第6圖：係為習知之立體圖。 第7圖：係為習知之組裝示意圖。 【主要元件符號說明】 本創作部份： 心轴----（1〇_) 組接部--- 嵌接淺槽--(111) 螺孔---- 螺鎖件——（12) 曲柄_ _ _ _(20) 柄體_ _ _ _ 貫通槽孔--(211) 穿套部-- _ 環槽--_ -(221) 剖槽_ _ _ - 喪接凸肋-_(223) 限位壁--- 束套_ _ _ _(3〇) 後入開口- _ 鎖件----(32) 習知部份： 曲柄-_ - _(30) 組結孔_ _ _ 凸部_ _ _ _(311) 剖槽-_ _ _ (11) (112) (21) (22) (222) (224) (31) (31) (312) M429648 螺孔----(313) 鎖件----(314) 心轴-- _ _(32)[Simple description of the diagram] Figure 1: This is a perspective view of the creation. Figure 2: This is an exploded view of the creation. Figure 3: This is the front view of the creation. Fig. 4 is a cross-sectional view of the A-A' direction of the creation. Fig. 5 is a cross-sectional view of the B-B' direction of the creation. Fig. 6 is a perspective view of a conventional one. Figure 7 is a schematic view of the assembly of the prior art. [Main component symbol description] This creation part: Mandrel----(1〇_) Assembly part--- Inch shallow groove--(111) Screw hole---- Screw lock piece-(12 Crank _ _ _ _ (20) handle body _ _ _ _ through slot --- (211) through the sleeve -- _ ring groove --- - (221) slot _ _ _ - nuzzle rib -_ (223) Limiting wall--- Bundle _ _ _ _ (3〇) Back opening - _ Locking piece----(32) Conventional part: Crank-_ - _(30) Assembly hole_ _ _ convex _ _ _ _ (311) slot -_ _ _ (11) (112) (21) (22) (222) (224) (31) (31) (312) M429648 screw hole --- -(313) Locking Parts----(314) Mandrel -- _ _(32)