201221417 六、發明說明： 【發明所屬之技術領域】 本發明主要係揭示一種自行車鏈輪，尤指一種具有輕 置化架構之自行車鏈輪，且其組成元件可容易且穩固地互 相組設。 【先前技術】 參照美國專利公開號第2005/0272546號「耵冗冗 露KET ASSEMBLY」專利案，其揭露一種由數個齒盤㈣ 組成的鏈輪。該鏈輪具有一個齒盤載件，具有複數個載臂 複數個齒盤，具有複數働卩釘孔及複 盤固定在載臂，鉚釘具有—_及第—及第二鉚 鉚接作業顧’第二鉚釘頭被形成在齒盤之—個面上，^ 盤之鉚釘孔具有：一個轴部，用以容納鉚釘之鉚釘轴二 ^里頭孔部，用以容納第二鉚釘頭；及—個間隙部，用以 鉚釘頭周圍的鉚接工具。該模組化的鏈輪具有 :相::::優：而’該齒盤載件為了能同時與數個齒 ==:::厚度愈厚，該漸增的厚度導= 更多的體力;=設：騎乘者於騎乘過程綱 7344463 ^ 号π系具揭路一種鏈輪，1 」 數個徑向延伸之承録盤及具有複 UWj承戴态。此等承載器臂包 201221417 括第一接受表面和與第一接受表面相反之第二接受表面。 將一齒盤安裝在該第一接受表面上，並將第二齒盤安裝在 第二接受表面上。將第三齒盤配置在第一與第二齒盤之 間。該承載器臂雖然在整體重量有所改善，然而該承載器 臂仍然需要同時組設至少三個齒盤，因此該承载器臂仍具 有相當的厚度，依然會產生不必要的重量造成騎乘者的負 擔。 '201221417 VI. Description of the Invention: [Technical Field] The present invention mainly discloses a bicycle sprocket, and more particularly to a bicycle sprocket having a lightweight structure, and the constituent elements thereof can be easily and stably assembled with each other. [Prior Art] Referring to the "KET ASSEMBLY" patent of U.S. Patent Publication No. 2005/0272546, a sprocket consisting of a plurality of chainrings (four) is disclosed. The sprocket has a sprocket carrier having a plurality of carrier arms and a plurality of sprocket wheels, and has a plurality of shank holes and a plurality of shackles fixed to the carrier arms, the rivets having -_ and the first and second riveting operations The second rivet head is formed on one surface of the sprocket wheel, and the rivet hole of the disk has: a shaft portion for accommodating the rivet shaft of the rivet, and the second rivet head; and a gap For riveting tools around the rivet head. The modular sprocket has: phase:::: excellent: and 'the toothed carrier is thicker with a few teeth ==::: thickness is thicker, the incremental thickness is more = physical strength ;= Set: The rider in the riding process program 7344463 ^ π 具 具 揭 sprocket a sprocket, 1 "several radially extending recording disc and with a complex UWj wearing state. These carrier arm packs 201221417 include a first receiving surface and a second receiving surface opposite the first receiving surface. A toothed disc is mounted on the first receiving surface and the second chainring is mounted on the second receiving surface. The third chainring is disposed between the first and second chainrings. Although the carrier arm has an overall weight improvement, the carrier arm still needs to be assembled with at least three toothed discs at the same time, so the carrier arm still has a considerable thickness and still generates unnecessary weight to cause the rider. The burden. '
儘管藉由設有一個用於連接自行車鏈輪或根據模组 概念的承㈣狀鏈輪具有快速崎之優點 仍铁 改善’使該一量化 改善構之缺失’本發明係可克服或設法 。構之所有缺點。 【發明内容】 本發明主要目 互相連接，每個#於’所有的龍皆是藉㈣接件而 齒盤栽件g卩可 自可獨立製作’且組裝触毋需藉由 本發明4要曰慧固的結合’有效的減輕整體重量。 ^入要目的β 大幅簡化了 有的連接件可為同一態樣， 本發明::!以及製造成本。 二齒盤之門的在於’當連接件組設於第一去勒·…& 面以及第：二時該間隔部兩側分別抵頂第-乐一齒盤的紐<二 保持igjm 使得第—齒盤與第 201221417 本發明另一目的在於，該凹槽之橫剖面面積大於該第 二擋部之橫剖面面積，該凹槽容設該第二擋部使該第二檔 部不會凸出於續接面，防止第二齒盤於運行過程中連接件 與鏈條產生干涉。 其他目的、優點和本發明的新穎特性將從以下詳細的 描述與相關的附圖更加顯明。 【實施方式】 參照圖一至圖三，為本發明自行車鏈輪（一）1之立 體外觀圖以及分解圖，該自行車鏈輪（一）1係用以連結 於自行車上一個可旋轉的輪轂。該自行車鏈輪（一）1包 括一個齒盤組100以及數個組設於齒盤組100的連接件 200。 該齒盤組100具有至少一個第一齒盤11、一個組設於 第一齒盤11的第二齒盤12以及一個組設於第一齒盤11 的第三齒盤13，本實施例有七個第一齒盤11、一個第二齒 盤12以及一個第三齒盤13。每個第一齒盤11具有不同的 齒數，且該第二齒盤12的齒數大於每個第一齒盤11的齒 數，該第三齒盤13的齒數小於每個第一齒盤11的齒數。 該第二齒盤12組設於齒數最大的第一齒盤11，其餘的第 一齒盤11由大至小依序連接，該第三齒盤13組設於齒數 最小的第一齒盤11。 每個第一齒盤11具有一個第一面111以及一個第二面 112，該第一面111靠近該第二齒盤12，該第二面112遠 201221417 離該第二齒盤12，每個第一齒盤11中間部位形成一個由 第一齒盤11之第一面111延伸至第一齒盤11之第二面112 的通孔113以減輕重量，每個第一齒盤11分別具有一個第 一部位11a以及一個第二部位lib，每個第一部位11a遠 離相對應的通孔113，每個第二部位lib靠近相對應的通 孔113，該第一齒盤11第一部位11a設有至少一個限位孔 114，該限位孔114由第一齒盤11之第一面111延伸至第 一齒盤11之第二面112並沿著第一部位11a環狀排列，該 限位孔114與第一齒盤11中心具有一個第一距離。該第一 齒盤11第二面112於限位孔114的周緣形成一個凹槽 1121。該第一齒盤11第二部位lib靠近通孔113周緣處設 有至少一個結合部115，根據本實施例，該第一齒盤11結 合部115沿著第二部位lib環狀排列並朝向該第一齒盤11 徑向中心延伸。每個第一歯盤11結合部115具有一個定位 孔116，該定位孔116由第一齒盤11之第一面111延伸至 第一齒盤11之第二面112，該定位孔116與第一齒盤11 中心具有一個第二距離，該第二距離小於該第一距離。根 據本實施例，較小的第一齒盤11之限位孔114對應於較大 的第一齒盤11之定位孔116。 該第二齒盤12具有一個第一面121以及一個第二面 122，該第二齒盤12第一面121遠離該第一齒盤11，該第 二齒盤12第二面122靠近該第一齒盤11，該第二齒盤12 中間部位形成一個由第二齒盤12第一面121延伸至第二齒 盤12第二面122的通孔123以減輕重量。該第二齒盤12 r t 201221417 罪近該第二齒盤12通孔123周緣處設有一個結合部125， 該結合部125對應該最大的第一齒盤11之限位孔114。根 據本實施例，該第二齒盤12結合部125沿著第二齒盤12 • 環狀排列並朝向該第二齒盤12徑向中心延伸。該第二齒盤 : 12結合部125具有一個定位孔126，該定位孔126由第二 齒盤12第一面121延伸至第二齒盤12第二面122，該第 二齒盤12之定位孔126與第一齒盤11之限位孔114共軸。 φ 該第三齒盤13連接於最小的第一齒盤11，該第三齒 盤具有一個第一面131以及一個第二面132，該第三齒盤 13第一面131靠近該第一齒盤11，該第三齒盤13第二面 132遠離該第一齒盤11，該第三齒盤13中間部位形成一個 由第三齒盤13之第一面131延伸至第三齒盤13之第二面 U2的通孔133以連結於自行車上可轉動的輪轂，該第三 齒盤13設有至少一個限位孔134，該限位孔134對應最小 的第一齒盤11之定位孔116，該第三齒盤13限位孔134 • 由第三齒盤丨3第一面131延伸至第三齒盤13第二面132 並沿著第三齒盤13環狀排列，該第三齒盤13限位孔134 與第一齒盤π定位孔116共軸。該第三齒盤13第二面132 於該限位孔134的周緣形成一個凹槽1321。 該連接件200大致為圓柱狀，該連接件2〇〇包含至少 個第連接件20、至少—個第二連接件以及至少一 個第二連接件40。該第一連接件2〇組設於最大第一齒盤 Π與第二齒盤12之間’該第二連接件3〇組設於第一齒盤 Π之間’該第三連接件4〇組設於最小第一齒盤U與第三「 201221417 齒盤13之間。所有連接件20、30、40分別具有一個間隔 部21、31、41，該間隔部21、31以及41兩側分別形成一 個第一連接部22、32、42以及一個第二連接部23、33、 43。 參照圖四以及圖五，該第一連接部22對應並組設於該 第二齒盤12的定位孔126，該第二連接部23對應並組設 於該第一齒盤11的限位孔114，根據本實施例，該第一連 接部22與定位孔126具有相同的截面，該第二連接部23 與限位孔114具有相同的截面，使該第一連接件20更穩定 的組設於第一齒盤11與第二齒盤12之間。 參照圖六至圖九，該間隔部21、31、41沿著相對應連 接件20、30、40縱向分別具有一個寬度W、W’ 、W” ，該 間隔部21、31、41沿著相對應連接件20、30、40徑向具 有一個第一徑寬H1、ΗΓ 、ΗΓ ;該第一連接部22、32、 42沿著相對應連接件20、30、40徑向具有一個第二徑寬 H2、H2’ 、H2” ；該第三連接部23、33、43沿著相對應連 接件20、30、40徑向具有一個第三徑寬H3、H3’ 、H3” ； 該間隔部21、31、41之第一徑寬H1、ΗΓ 、ΗΓ大於相 對應第一連接部22、32、42之第二徑寬H2、H2’ 、H2” ， 且該間隔部21、31、41之第一徑寬H1、ΗΓ 、ΗΓ大於 相對應第二連接部23、33、43之第三徑寬肋、1]3’、[{3”， 同時，該間隔部21、31、41之第一徑寬H1、ΗΓ 、ΗΓ 大於相對應定位孔116、126或限位孔114、134之徑寬。 當第一連接件20組設於第一齒盤11與第二齒盤12之間、 201221417 此時該間隔部21兩側分別抵頂第一齒盤11的第一面111 以及第二齒盤12的第二面122，使得第一齒盤11與第二 齒盤12之間保持一個固定間隙。該第一連接部22遠離該 間隔部21之一端形成一個第一擋部24，該第二連接部23 遠離該間隔部21之一端形成一個第二擋部25，該第一擋 部24沿著第一連接件20徑向具有一個第四徑寬H4，該第 二擋部25沿著第一連接件20徑向具有一個第五徑寬H5 ; 該第一擋部24之第四徑寬H4大於定位孔126之徑寬，使 該第二齒盤12限位於間隔部21與第一擋部24之間；該第 二擋部25之第五徑寬H5大於限位孔114之徑寬，使該第 一齒盤11限位於間隔部21與第二擋部25之間。該凹槽 1121之徑寬大於該第二擋部25之第五徑寬H5，該凹槽 1121容設該第二擋部25使該第二擋部25不會凸出於第二 面112，防止第一齒盤11於運行過程中該第一連接件20 與鏈條產生干涉。 該第一齒盤11彼此之間的連接藉由第二連接件30的 第一連接部32組設於相對應較大的第一齒盤11之定位孔 116以及第二連接部33組設於相對應較小的第一齒盤11 之限位孔114,由於第二連接件30間隔部31的寬度W’使 得每個第一齒盤11皆能保持一個固定間隙。該第一連接部 32與相對應較大第一齒盤11的定位孔116具有相同的截 面，該第二連接部33與相對應較小第一齒盤11的限位孔 114具有相同的截面，使該第二連接件30更穩定的組設於 第一齒盤11。該間隔部31兩側分別抵頂相對應較小第一 ^Although the present invention can be overcome or managed by providing a bearing (four) sprocket for connecting a bicycle sprocket or according to the concept of a module to have the advantage of being fast and smooth, the iron is improved to make the quantitative improvement. All the disadvantages of the structure. SUMMARY OF THE INVENTION The main objects of the present invention are connected to each other, and each of ##'s all dragons are borrowed (four) connectors and the toothed trays can be independently produced' and the assembly touches need to be solved by the present invention. The combination of solids 'effectively reduces overall weight. The purpose of the β is greatly simplified. Some connectors can be in the same state, the present invention::! and the manufacturing cost. The door of the double-toothed disc lies in 'when the connecting member is set on the first de-le... and the second and the second: respectively, the two sides of the spacer respectively abut the top-left of the first-tooth-toothed disc<2 keep igjm The first toothed disc and the second 201221417 are another object of the present invention, the cross-sectional area of the groove is larger than the cross-sectional area of the second blocking portion, and the groove receives the second blocking portion so that the second gear portion does not Protruding from the continuous surface prevents the second toothed disc from interfering with the chain during operation. Other objects, advantages and novel features of the invention will be apparent from the description and appended claims. [Embodiment] Referring to Figures 1 to 3, there is shown a perspective view and an exploded view of a bicycle sprocket (1) 1 for attaching to a rotatable hub on a bicycle. The bicycle sprocket (1) 1 includes a chain gear set 100 and a plurality of connecting members 200 disposed on the chain gear set 100. The sprocket set 100 has at least one first spur 11 , a second spur 12 disposed on the first spur 11 , and a third spur 13 disposed on the first spur 11 . Seven first spurs 11, one second spur 12 and one third spur 13. Each of the first spurs 11 has a different number of teeth, and the number of teeth of the second spur 12 is greater than the number of teeth of each of the first spurs 11, and the number of teeth of the third spur 13 is smaller than the number of teeth of each of the first spurs 11 . The second spurs 11 are assembled on the first spurs 11 having the largest number of teeth, and the remaining first spurs 11 are sequentially connected from large to small. The third spurs 13 are assembled on the first spurs 11 having the smallest number of teeth. . Each of the first spurs 11 has a first face 111 and a second face 112, the first face 111 being adjacent to the second spur 12, the second face 112 being far from 201221417, away from the second spur 12, each The intermediate portion of the first spur 11 forms a through hole 113 extending from the first surface 111 of the first spur 11 to the second surface 112 of the first spur 11 to reduce the weight, and each of the first spurs 11 has a The first portion 11a and the second portion lib, each of the first portions 11a is away from the corresponding through hole 113, and each of the second portions lib is adjacent to the corresponding through hole 113, and the first portion 11a of the first toothed plate 11 is provided There is at least one limiting hole 114 extending from the first surface 111 of the first toothed disc 11 to the second surface 112 of the first toothed disc 11 and annularly arranged along the first portion 11a, the limiting position The aperture 114 has a first distance from the center of the first chainring 11. The second surface 112 of the first spur 11 forms a recess 1121 at the periphery of the limiting hole 114. The second portion lib of the first toothed disc 11 is provided with at least one joint portion 115 near the periphery of the through hole 113. According to the embodiment, the first toothed disc 11 joint portion 115 is annularly arranged along the second portion lib and faces the same. The first spur 11 extends in the radial center. Each of the first disk 11 joints 115 has a positioning hole 116 extending from the first face 111 of the first toothed disk 11 to the second face 112 of the first toothed disk 11, the positioning hole 116 and the first The center of a toothed disc 11 has a second distance that is less than the first distance. According to this embodiment, the limiting hole 114 of the smaller first spur 11 corresponds to the locating hole 116 of the larger first spur 11 . The second toothed disc 12 has a first surface 121 and a second surface 122. The first surface 121 of the second toothed disc 12 is away from the first toothed disc 11, and the second surface 122 of the second toothed disc 12 is adjacent to the first surface. A toothed disc 11 having a through hole 123 extending from the first face 121 of the second spur 12 to the second face 122 of the second spur 12 is formed at an intermediate portion of the second spur 12 to reduce weight. The second toothed disc 12 r t 201221417 is provided with a joint portion 125 near the periphery of the through hole 123 of the second toothed disc 12, and the joint portion 125 corresponds to the limit hole 114 of the largest first toothed disc 11 . According to the present embodiment, the second toothed disc 12 joint portion 125 is annularly arranged along the second chainring 12 and extends toward the radial center of the second chainring 12. The second sprocket wheel 12 has a positioning hole 126 extending from the first face 121 of the second spur 12 to the second face 122 of the second spur 12, the positioning of the second spur 12 The aperture 126 is coaxial with the limiting aperture 114 of the first sprocket 11 . The third spur 13 is connected to the smallest first spur 11 having a first face 131 and a second face 132, the first face 131 of the third spur 13 being adjacent to the first tooth The second surface 132 of the third spur 13 is away from the first spur 11 , and the intermediate portion of the third spur 13 is formed to extend from the first surface 131 of the third spur 13 to the third spur 13 The through hole 133 of the second surface U2 is coupled to the rotatable hub of the bicycle. The third toothed disc 13 is provided with at least one limiting hole 134 corresponding to the positioning hole 116 of the smallest first toothed disc 11 . The third toothed disc 13 defines a hole 134. The third toothed disc 丨3 extends from the first surface 131 to the third surface 132 of the third spur 13 and is annularly arranged along the third spur 13 . The disk 13 limiting hole 134 is coaxial with the first toothed disk π positioning hole 116. A second surface 132 of the third spur 13 defines a recess 1321 at a periphery of the limiting hole 134. The connector 200 is substantially cylindrical, and the connector 2 includes at least a first connector 20, at least one second connector, and at least one second connector 40. The first connecting member 2 is disposed between the largest first sprocket Π and the second spur 12. The second connecting member 3 is disposed between the first sprocket '. The third connecting member 〇 The assembly is disposed between the smallest first toothed disc U and the third "201221417 toothed disc 13. All of the connecting members 20, 30, 40 have a spacing portion 21, 31, 41, respectively, and the two sides of the spacing portions 21, 31 and 41 respectively A first connecting portion 22, 32, 42 and a second connecting portion 23, 33, 43 are formed. Referring to FIG. 4 and FIG. 5, the first connecting portion 22 is correspondingly disposed and disposed in the positioning hole of the second toothed disc 12. 126, the second connecting portion 23 is correspondingly disposed and disposed in the limiting hole 114 of the first spur 11 . According to the embodiment, the first connecting portion 22 has the same cross section as the positioning hole 126 , and the second connecting portion 23 has the same cross section as the limiting hole 114, so that the first connecting member 20 is more stably disposed between the first toothed disc 11 and the second toothed disc 12. Referring to FIGS. 6 to 9, the spacing portion 21, 31, 41 respectively have a width W, W', W" along the longitudinal direction of the corresponding connecting members 20, 30, 40, and the spacing portions 21, 31, 41 are connected along the corresponding sides. 20, 30, 40 have a first radial width H1, ΗΓ, ΗΓ in the radial direction; the first connecting portions 22, 32, 42 have a second radial width H2 along the radial direction of the corresponding connecting members 20, 30, 40. H2', H2"; the third connecting portions 23, 33, 43 have a third radial width H3, H3', H3" along the radial direction of the corresponding connecting members 20, 30, 40; the spacing portions 21, 31, The first path width H1, ΗΓ, ΗΓ of 41 is greater than the second path widths H2, H2', H2" of the corresponding first connecting portions 22, 32, 42 and the first path width of the spacing portions 21, 31, 41 H1, ΗΓ, ΗΓ are larger than the third diameter-width ribs of the corresponding second connecting portions 23, 33, 43, 1] 3', [{3", and the first path width H1 of the spacers 21, 31, 41 , ΗΓ, ΗΓ are larger than the diameters of the corresponding positioning holes 116, 126 or the limiting holes 114, 134. When the first connecting member 20 is disposed between the first sprocket 11 and the second spur 12, the two sides of the spacer 21 are respectively abutted against the first surface 111 of the first spur 11 and the second spur The second face 122 of the 12 maintains a fixed gap between the first chainring 11 and the second chainring 12. The first connecting portion 22 forms a first blocking portion 24 away from one end of the spacing portion 21, and the second connecting portion 23 forms a second blocking portion 25 away from the one end of the spacing portion 21, the first blocking portion 24 along the first blocking portion The first connecting member 20 has a fourth diameter H4 in the radial direction, and the second blocking portion 25 has a fifth diameter H5 along the radial direction of the first connecting member 20; the fourth diameter H4 of the first blocking portion 24 The diameter of the positioning hole 126 is greater than the diameter of the positioning hole 126, so that the second toothed disk 12 is limited between the spacing portion 21 and the first blocking portion 24; the fifth diameter H5 of the second blocking portion 25 is greater than the diameter of the limiting hole 114. The first spur 11 is limited between the spacer 21 and the second stop 25. The width of the groove 1121 is greater than the fifth width H5 of the second stop portion 25, and the second portion 25 is received by the groove 1121 so that the second stop portion 25 does not protrude from the second surface 112. The first link 20 is prevented from interfering with the chain during operation of the first chainring 11. The first toothed discs 11 are connected to each other by a first connecting portion 32 of the second connecting member 30, and are disposed on the positioning hole 116 of the correspondingly larger first toothed disc 11 and the second connecting portion 33. Corresponding to the limiting hole 114 of the smaller first toothed disc 11, the width W' of the spacer 31 of the second connecting member 30 enables each of the first spurs 11 to maintain a fixed gap. The first connecting portion 32 has the same cross section as the positioning hole 116 corresponding to the larger first toothed disc 11 , and the second connecting portion 33 has the same cross section as the limiting hole 114 corresponding to the smaller first toothed disc 11 . The second connecting member 30 is more stably assembled to the first toothed disc 11. The two sides of the spacer portion 31 respectively correspond to a smaller corresponding first ^
I 201221417 齒盤11的第一面111以及相對應較大第一齒盤11的第二 面112，使得較小第一齒盤11與較大第一齒盤11之間保 持一個固定間隙。該第一連接部32遠離該間隔部31之一 端形成一個第一擋部34，該第二連接部33遠離該間隔部 31之一端形成一個第二擋部35，該第一擋部34沿著第二 連接件30徑向具有一個第四徑寬H4’ ，該第二擋部35沿 著第二連接件30徑向具有一個第五徑寬H5’ ；該第一擋 部34之第四徑寬H4’大於相對應定位孔116之徑寬，使 該相對應較大第一齒盤11限位於間隔部31與第一擋部34 之間；該第二擋部35之第五徑寬H5’大於相對應限位孔 114之徑寬，使該相對應較小第一齒盤11限位於間隔部31 與第二擋部35之間。該較小第一齒盤11的凹槽1121之徑 寬大於該第二擋部35之第五徑寬H5’ ，該較小第一齒盤 11的凹槽1121容設該第二擋部35使該第二擋部35不會 凸出於較小第一齒盤11的第二面112，防止第一齒盤11 於運行過程中第二連接件30與鏈條產生干涉。 該第三齒盤13與第二齒盤12之間的連接藉由第三連 接件40的第一連接部42組設於最小第一齒盤11的定位孔 116以及第二連接部43組設於相對應第三齒盤13的限位 孔134,且藉由第三連接件40間隔部41的寬度W”使得第 一齒盤11與第三齒盤13能保持一個固定間隙。該第一連 接部42與相對應最小第一齒盤11之定位孔116具有相同 的截面，該第二連接部43與相對應第三齒盤13的限位孔 114具有相同的截面，使該第三連接件40更穩定的組設於， I. 10 201221417 第一齒盤11與第三齒盤13之間。該間隔部41兩側分別抵 頂相對應第三齒盤13的第一面131以及相對應最小第一齒 盤11的第二面112，使得第三齒盤13與最小第一齒盤11 之間保持一個固定間隙。該第一連接部42遠離該間隔部 41之一端形成一個第一擋部44，該第二連接部43遠離該 間隔部41之一端形成一個第二擋部45，該第一擋部44沿 著第三連接件40徑向具有一個第四徑寬H4” ，該第二擋 部45沿著第三連接件40徑向具有一個第五徑寬H5” ；該 第一擋部44之第四徑寬H4”大於相對應定位孔116之徑 寬，使該最小第一齒盤11限位於間隔部41與第一擋部44 之間；該第二擋部45之第五徑寬H5”大於相對應限位孔 134之徑寬，使該第三齒盤13限位於間隔部41與第二擋 部45之間。該第三齒盤13之凹槽1321之徑寬大於該第二 擋部45之第五徑寬H5” ，該第三齒盤13凹槽1321之徑 寬大於該第二擋部25之徑寬，該第三齒盤13的凹槽1321 容設該第二擋部25使該第二擋部25不會凸出於第三齒盤 13的第二面132,防止第三齒盤13於運行過程中該第三連 接件40與鏈條產生干涉。 參照圖十以及圖十一，該自行車鏈輪（一）更包含有 一個驅動本體50，該驅動本體50組設於最大第一齒盤11 的第一面111，該驅動本體50中間部位設有一個固定孔51 使該驅動本體50連結於自行車上一個可旋轉的輪轂，進而 帶動自行車鍊輪（一）1轉動。由於輪轂連結該驅動本體 50固定孔51以及該第三齒盤13限位孔134，該自行車鏈，I 201221417 The first face 111 of the chainring 11 and the second face 112 corresponding to the larger first chainring 11 maintain a fixed gap between the smaller first chainring 11 and the larger first chainring 11. The first connecting portion 32 forms a first blocking portion 34 away from one end of the spacing portion 31. The second connecting portion 33 forms a second blocking portion 35 away from the one end of the spacing portion 31. The first blocking portion 34 is along the first blocking portion 34. The second connecting member 30 has a fourth diameter H4' in the radial direction, and the second blocking portion 35 has a fifth diameter H5' along the radial direction of the second connecting member 30; the fourth diameter of the first blocking portion 34 The width H4' is greater than the diameter of the corresponding positioning hole 116, so that the corresponding larger first toothed disc 11 is limited between the spacing portion 31 and the first blocking portion 34; and the fifth width H5 of the second blocking portion 35 is 'Beyond the diameter of the corresponding limiting hole 114, the corresponding smaller first toothed disc 11 is limited between the spacing portion 31 and the second blocking portion 35. The diameter of the groove 1121 of the smaller first spur 11 is greater than the fifth width H5 ′ of the second stalk 35. The groove 1121 of the smaller first spur 11 accommodates the second dam 35. The second stop portion 35 is prevented from protruding from the second face 112 of the smaller first sprocket 11 to prevent the second link member 30 from interfering with the chain during operation of the first sprocket wheel 11. The connection between the third sprocket 13 and the second sprocket 12 is assembled by the first connecting portion 42 of the third connecting member 40 and the positioning hole 116 of the smallest first sprocket 11 and the second connecting portion 43. Corresponding to the limiting hole 134 of the third spur 13 and by the width W" of the spacer 41 of the third connecting member 40, the first spur 11 and the third spur 13 can maintain a fixed gap. The connecting portion 42 has the same cross section as the positioning hole 116 of the corresponding minimum first toothed disc 11, and the second connecting portion 43 has the same cross section as the limiting hole 114 of the corresponding third toothed disc 13, so that the third connection A more stable assembly of the member 40 is provided between I. 10 201221417 between the first sprocket 11 and the third spur 13. The two sides of the spacer 41 respectively abut the first face 131 corresponding to the third spur 13 and the phase Corresponding to the second face 112 of the smallest first spur 11 , a fixed gap is maintained between the third spur 13 and the smallest first spur 11 . The first connecting portion 42 forms a first distance away from one end of the spacer 41 . a blocking portion 44, the second connecting portion 43 forming a second blocking portion 45 away from one end of the spacing portion 41, the first blocking portion 44 along the first The connecting member 40 has a fourth radial width H4" in the radial direction, and the second blocking portion 45 has a fifth diameter H5" along the radial direction of the third connecting member 40; the fourth diameter H4 of the first blocking portion 44 </ RTI> is larger than the corresponding width of the corresponding positioning hole 116, so that the minimum first toothed disc 11 is limited between the spacing portion 41 and the first blocking portion 44; the fifth diameter H5" of the second blocking portion 45 is greater than the corresponding limit The diameter of the hole 134 is such that the third spur 13 is limited between the spacer 41 and the second stop 45. The groove 1321 of the third spur 13 has a larger diameter than the second dam 45. The fifth path width H5", the diameter of the groove 1321 of the third spur 13 is larger than the diameter of the second dam 25, and the groove 1321 of the third spur 13 accommodates the second block 25 The second stop 25 does not protrude from the second face 132 of the third spur 13 and prevents the third sprocket 13 from interfering with the chain during operation. Referring to FIG. 10 and FIG. 11 , the bicycle sprocket (1) further includes a driving body 50, and the driving body 50 is disposed on the first surface 111 of the largest first sprocket 11 , and the driving body 50 is disposed at an intermediate portion thereof. A fixing hole 51 connects the driving body 50 to a rotatable hub on the bicycle, thereby driving the bicycle sprocket 1 to rotate. Since the hub is coupled to the driving body 50 fixing hole 51 and the third toothed plate 13 limiting hole 134, the bicycle chain,
I 201221417 輪（）1可穩定的組設於輪轂。 繼連咖而互 毋需藉由齒盤域触 P可彼此穩固的結合，第一齒盤π以及 讲11= 12/未直接碰觸輪穀，因此可將第—齒盤11通 孔113以及第二齒殽t ^ 輕整體重量。第-寬最大化，有效的減 以崖1、，，。&部115以及第二齒盤12結I 201221417 Wheel () 1 can be stably set on the hub. According to the connection between the tooth and the tooth, the first toothed disc π and the 11=12/ do not directly touch the valley, so that the first toothed disc 11 through hole 113 and The second tooth is confusing t ^ light overall weight. The first-width is maximized and effectively reduced by Cliff 1,,,. & section 115 and second toothed disc 12 knot
⑶加該第—齒盤11徑向中心延伸使得該第一齒盤 11以及該第―齒盤12更加簡化且更加輕量化。所有的連 接件20、30、40可為同一態樣，大幅簡化了零件構造以及 製造成本。 惟ΐ所述者，僅為本發明之較佳實施例而已，當不能 以之限疋本發明錢之範圍，故舉凡數值 件之置換，或依本發明申請專利範圍所作之均等變化與修 飾，皆應仍屬本發明專利涵蓋之範疇。(3) The radial center of the first sprocket 11 is extended such that the first spur 11 and the first spur 12 are more simplified and more lightweight. All of the connectors 20, 30, 40 can be identical, greatly simplifying part construction and manufacturing costs. However, the present invention is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, so that the replacement of the numerical value or the equivalent variation and modification according to the scope of the patent application of the present invention, All should remain within the scope of the invention patent.
【圖式簡單說明】 圖-：為本發明自行車鏈輪㈠之立體外觀圖。 圖二：為本剌自行車鏈輪（―）之讀分解圖。 Γ:.=?:行車鏈輪㈠另—角度之立體分解圖。 圖四·為本I明圖-沿4-4剖面線所取之剖面圖。 圖五：為本發明圖-沿5_5剖面線所取之二面^ 圖六：為本發明圖一沿6~6剖面線所取之剖面圖。 圖七：為本發明自圖明取之部份放大圖，表示第二齒盤… 12 201221417 連接第一齒盤。 圖八：為本發明自圖四所取之部份放大圖，表示兩個第二 齒盤相連接。 圖九：為本發明自圖四所取之部份放大圖，表示第三齒盤 連接第二齒盤。 圖十：為本發明自行車鏈輪（一）之組裝示意圖，其表示 自行車鏈輪（一）組設於自行車可轉動之輪轂。 圖十一：為本發明自行車鏈輪（一）之組裝示意圖，其表 示輪轂連結第三齒盤限位孔以及驅動本體固定孔。 【主要元件符號說明】 1 自行車鏈輪（一） 100 齒盤組 11 第一齒盤 111 第一面 112 第二面 1121 凹槽 113 通孔 114 限位孔 115 結合部 116 定位孔 11a 第一部位 lib 第二部位 12 第二齒盤 121 第一面 122 第二面 123 通孔 125 結合部 126 定位孔 13 第三齒盤 131 第一面 132 第二面 1321 凹槽 133 通孔 134 限位孔 201221417 200 連接件 20 第一連接件 21 間隔部 22 第一連接部 23 第二連接部 24 第一擔部 25 第二擋部 30 第二連接件 31 間隔部 32 第一連接部 33 第二連接部 34 第一擋部 35 第二擋部 40 第三連接件 41 間隔部 42 第一連接部 43 第二連接部 44 第一擋部 45 第二擋部 50 驅動本體 51 固定孔 W、W，、 W” 寬度 H1 ' ΗΓ 、ΗΓ 第一徑寬 H2、H2’ 、H2” 第二徑寬 H3、H3, 、H3” 第三徑寬 H4、H4, 、H4” 第四徑寬 H5、H5, 、H5” 第五徑寬 14BRIEF DESCRIPTION OF THE DRAWINGS Fig.-: A perspective view of the bicycle sprocket (1) of the present invention. Figure 2: The exploded view of the bicycle sprocket (-). Γ:.=?: Driving sprocket (1) Another-angle exploded view. Figure 4 is a cross-sectional view taken along line 4-4. Figure 5: Figure 2 of the present invention - taken along the line 5_5. Figure 6 is a cross-sectional view taken along line 6-6 of Figure 1 of the present invention. Figure 7 is a partial enlarged view of the present invention taken from the figure, showing the second toothed disc... 12 201221417 The first toothed disc is connected. Figure 8 is a partial enlarged view of the present invention taken from Figure 4, showing the connection of two second toothed discs. Figure 9 is a partial enlarged view of the present invention taken from Figure 4, showing the third chainring connected to the second chainring. Figure 10 is a schematic view showing the assembly of the bicycle sprocket (1) of the present invention, which shows that the bicycle sprocket (1) is assembled on the wheel of the bicycle. Figure 11 is a schematic view showing the assembly of the bicycle sprocket (1) of the present invention, which shows that the hub is coupled to the third toothed plate limiting hole and the driving body fixing hole. [Main component symbol description] 1 Bicycle sprocket (1) 100 sprocket wheel set 11 First sprocket wheel 111 First face 112 Second face 1121 Groove 113 Through hole 114 Limit hole 115 Joint portion 116 Positioning hole 11a First part Lib second portion 12 second toothed disc 121 first surface 122 second surface 123 through hole 125 joint portion 126 positioning hole 13 third toothed disc 131 first surface 132 second surface 1321 groove 133 through hole 134 limit hole 201221417 200 connecting member 20 first connecting member 21 spacer portion 22 first connecting portion 23 second connecting portion 24 first shoulder portion 25 second blocking portion 30 second connecting member 31 spacer portion 32 first connecting portion 33 second connecting portion 34 First blocking portion 35 second blocking portion 40 third connecting member 41 spacer portion 42 first connecting portion 43 second connecting portion 44 first blocking portion 45 second blocking portion 50 driving body 51 fixing holes W, W, W" Width H1 ' ΗΓ , ΗΓ First diameter H2, H2', H2" Second diameter H3, H3, H3" Third diameter H4, H4, H4" Fourth diameter H5, H5, H5" Fifth diameter width 14