M410709 五、新型說明： 【新型所屬之技術領域】 本創作係有關於-種自行車之曲柄組，尤指一種適用於非 圓形齒盤之自行車曲柄組。 【先前技術】 傳統之自行車齒盤多為圓形，於組裝曲柄與齒盤時可於 齒盤開設數做位孔，並於曲柄無盤之間裝設_多個等距 離放射狀制的連接件，使連接件與定位制定，用以連接曲 柄與齒盤，如TWI329087或TW371441等專利所述。 …、:而，S用之自行車齒盤不僅有圓形之齒盤亦有其他非 圓形形狀的齒盤，如US51聊、卿65577或咖4贿等 專利所揭示的自行車齒盤，在習用各種非圓形齒盤中，其齒盤 與曲柄的連接方式仍多採用習用等距放射狀排列的連接件，使 得齒盤無法依其外型任意改變定位孔的位置，而使齒盤的外形 有所侷限’此外，為轉定位孔的位置供連接倾裝固定，該 錄盤多㈣大部細_材料，使得齒盤又有重量較重^ 題0 【新型内容】 。本創作之主要目的在於提供另一種曲柄組，能供適用於非 圓心的自行車齒盤，肋將曲柄與齒盤固定。 為達成上述目的’本創作提供—種自行車曲柄爪，供組裝 於非圓形之自行車齒盤，並可進一步供一曲柄固定，該自行車 3 M410709 齒盤具有一短軸，該短軸穿越該自行車齒盤的中心，該短軸位 於該自行車齒盤之直徑最短處，該自行車齒盤形成有四定位 該自行車曲柄爪包含四連接部，各該連接部具有一第一端 與一第二端，該些第一端相互連接固定，該些第二端分別供其 中-定位雜裝m定，使該些第—端圍繞於該自行車齒盤的中 心’每二相㈣連接部之間形成有—夾角，各該夾角的大小與 其所相鄰夹角的大小相異。 /藉此’本創作所提供之自行車曲柄爪可供連接於曲柄與自 订車齒盤之間’其t ’該些夾角與其所相鄰的夾角大小不同， 使連接部的錄並料轉放餘㈣，可供適用於非圓形的 自行車齒盤，用峨佳地連接並切自行車齒盤。 【實施方式】 限制本創作所魏護之鱗，合先敛明。 以下僅以實施例說明本創作可能之實施態樣，然並非用以 本創作提供一種自行車齒盤曲柄組，M410709 V. New description: [New technical field] This creation is about the crank group of bicycles, especially a bicycle crank set suitable for non-circular gears. [Prior Art] The conventional bicycle toothed disc is mostly round. When the crank and the toothed disc are assembled, a number of positioning holes can be opened in the toothed disc, and a plurality of equidistant radial connections are arranged between the crankless discs. The connector is positioned to position the crank and the chainring as described in patents such as TWI329087 or TW371441. ...,: However, the bicycle sprocket used for S not only has a circular sprocket wheel but also other non-circular shaped sprocket wheels, such as the bicycle sprocket wheel disclosed in US51 Liao, Qing 65577 or café 4 bribes. In various non-circular toothed discs, the connection between the toothed disc and the crank is still more commonly used in the arrangement of equidistant radial arrangement, so that the toothed disc can not change the position of the positioning hole arbitrarily according to its shape, and the shape of the toothed disc is made. There are limitations. In addition, the position of the locating hole is fixed for the connection. The number of the platter is more than four (4), so that the sprocket has a heavier weight. [0] [New content]. The main purpose of this creation is to provide another crankset that can be used for non-centralized bicycle chainrings that secure the crank to the chainring. In order to achieve the above object, the present invention provides a bicycle crank claw for assembly on a non-circular bicycle toothed disc, and can be further fixed by a crank. The bicycle 3 M410709 has a short shaft that passes through the bicycle. a center of the toothed disc, the short axis is located at a shortest diameter of the bicycle toothed disc, and the bicycle toothed disc is formed with four positions. The bicycle crank claw includes four connecting portions, each of the connecting portions having a first end and a second end. The first ends are fixedly connected to each other, and the second ends are respectively provided for the positioning miscellaneous m, such that the first ends are formed around the center of the bicycle chainring between each two (four) connecting portions. The angle of each of the included angles is different from the size of the adjacent angle. / By this, the bicycle crank claw provided by this creation can be connected between the crank and the custom toothed disc. The angle between the crank angle and the adjacent toothed disc is different from the angle between the adjacent corners, so that the joint portion of the joint is transferred. (4), available for non-circular bicycle chainrings, which are used to connect and cut bicycle chainrings. [Embodiment] Limiting the scales of Wei's protection in this creation. In the following, only a possible embodiment of the present invention will be described by way of example, but instead of providing a bicycle crankset crank set,
行車齒盤1的最短直徑。該自行車 ’亦即，該短軸11於該自行 請參考圖1至圖3， 包括一自行車齒盤1、一 於該自行車齒盤1的直捏最短處 車齒盤1中的長度即為該 M410709 齒盤1形成有四定位部13，其中各該定位部B包括有-定位 孔，於本創作其他可能的實施例中，各該定位部13亦可能包 括有定位凹槽或凸柱。 ★該自行車曲柄爪具有四連接部2卜各該連接部21具有一 第一端2U與一第二端212，各該第一端2ιι相互連接固定， 較佳者，係連接為一體，然而改以組裝固定者，亦無不可。該 些第二端212則分別固設於其中一定位部13，使該些第一端 211圍繞於該自行車齒盤的中心12，令該些連接部21成放射 狀排列’其中，每兩相鄰的連接部21之間形成有一夾角I 22各該夾肖22的大小於其所相鄰夾角22，的大小相異，較 佳者’該钱肖22柄姆，且細姆夹肖22的大小相等。 又較佳者，各料接部21不平行機雜η，可令該短轴Μ 位於其中兩姉夾角22的中央，此時，若該自行車齒盤ι為 _形或具有左右對稱且上下對稱的外形，各該連接部Μ可 ^有相_長度’並可對稱射，卜其中，可令該雖U穿越 經過的二夾角22大於該短軸未穿越經過的二夾角22,。 k曲柄3 m該自行車曲柄爪，另—端徑向延伸， 1中’於本實施例t，該曲柄3係與該自行車曲柄爪一體成 里於本創作其他可能的實施例中，該曲柄3與該自行車曲柄 爪亦可能為組裝相互固定者。其中，請參考圖3與圖4，該曲 柄3與該短軸11之間可形成有一介㈣度至25度之間的偏移 角’亦即’該曲柄可如圖3所示與該短轴平行，或者，該曲柄 5 M410709 供使用者自行調整 可與該短軸形成有-祕25度的夹角，如圖4所示·其令， 當該曲柄3與該自行車曲柄爪為組仙定時該偏移角亦可能 利用上述裝置，本創作可利用自行車曲柄爪連接於曲柄3 與非圓形的自行車齒盤1之間，請參考圖3,該自行車齒盤！ 可供組裝於自行車中，隨縣者踩踏而轉動，當自行車齒盤^ 的短軸端點⑴轉動至頂端的上死點時，自行車的鍊條即愈自 二車齒盤_軸職⑴龄，該自行車触於短軸端點的直 從較短，使自行車魅的轉動速度較快，且受力較小，亦即較 不需要過喊結構強度進行战，可將連接部Μ於此 形成的夾角22提高’使連接部21向兩侧張開，用以支撐自行 車齒盤1其他受力較大的部位。 絲上所述’本創作提供一種自行車齒盤曲柄組，利用自行 車曲柄爪連接於曲柄與自行車齒盤之間，該自行車曲柄爪具有 四個連接部’該些連接部之間不具有均—的夾角而係經過調 整’使該些連接部麟單純的等轉放射狀排列，可適用於非 圓形的自行車㈣’而可供自行車將定位部或定位孔調整 到適當位置’為習用自行車曲柄所未見者，實為創新實用的自 行車齒盤曲柄組。 【圖式簡單說明】 圖1係本創作之立體圖。 圖2係本創作所適用自行車齒盤之立體圖。 M410709 圖3係本創作之立體前視圖。 圖4係本創作另一實施例之前視圖。 【主要元件符號說明】 1 :自行車齒盤 21 :連接部 11 :短軸 211 :第一端 111 :短軸端點 212 :第二端 12 :中心 22、22’ ：夾角 13 :定位部 3 :曲柄The shortest diameter of the steering sprocket 1. The bicycle 'i.e., the short shaft 11 is referred to FIG. 1 to FIG. 3, and includes a bicycle toothed disc 1 and a length in the straight pinch of the bicycle toothed disc 1 which is the shortest position of the toothed disc 1 The locating plate 13 of the M410709 is formed with four positioning portions 13 , wherein each of the positioning portions B includes a positioning hole. In other possible embodiments of the present invention, each positioning portion 13 may also include a positioning groove or a stud. The bicycle crank claw has four connecting portions. Each of the connecting portions 21 has a first end 2U and a second end 212. Each of the first ends 2 is connected to each other. Preferably, the connecting portions are integrally connected. It is also impossible to assemble and fix. The second ends 212 are respectively fixed to one of the positioning portions 13 so that the first ends 211 surround the center 12 of the bicycle chainring, so that the connecting portions 21 are radially arranged, wherein each of the two phases Between the adjacent connecting portions 21, an angle I 22 is formed, and the size of each of the clips 22 is different from the adjacent angle 22 of the adjacent corners 22, preferably 'the money is 22 handles, and the fine clips 22 are Equal in size. Further preferably, each of the material joints 21 is not parallel to the machine n, so that the short axis Μ is located at the center of the two corners 22, and at this time, if the bicycle toothed disc is _-shaped or has left-right symmetry and is vertically symmetrical The shape of each of the connecting portions can be phased and lengthy, and the two angles 22 that pass through the U can be made larger than the two angles 22 through which the short axis does not pass. k crank 3 m the bicycle crank claw, the other end radially extending, 1 in 'the present t, the crank 3 is integrated with the bicycle crank claw in other possible embodiments of the present creation, the crank 3 It is also possible for the bicycle crank claws to be assembled to each other. Referring to FIG. 3 and FIG. 4, an offset angle between (four) degrees and 25 degrees can be formed between the crank 3 and the short shaft 11. That is, the crank can be short as shown in FIG. The axis is parallel, or the crank 5 M410709 can be adjusted by the user to form an angle of 25 degrees with the short axis, as shown in FIG. 4, when the crank 3 and the bicycle crank claw are grouped It is also possible to use the above device at the timing of the offset angle. The present invention can be connected between the crank 3 and the non-circular bicycle chainring 1 by means of a bicycle crank claw. Please refer to FIG. 3, the bicycle toothed disc! It can be assembled in a bicycle and rotates with the county person stepping on. When the short-axis end point (1) of the bicycle toothed disc ^ is rotated to the top dead center of the top end, the bicycle chain is more than the second gear-toothed shaft (1) age. The bicycle is short to the short end of the short axis, so that the bicycle charm rotates faster and the force is smaller, that is, the structure strength is not required to be shouted, and the connection portion can be formed here. The angle 22 is increased to make the connecting portion 21 open to both sides for supporting other portions of the bicycle toothed disc 1 that are more stressed. The present invention provides a bicycle crankset crank set that is coupled between a crank and a bicycle toothed disc by a bicycle crank claw having four connecting portions 'these connecting portions do not have a uniformity The angle is adjusted to make the connecting parts simple and equilaterally arranged, which can be applied to non-circular bicycles (4), and the bicycle can be used to adjust the positioning part or positioning hole to the appropriate position. Unseen, it is an innovative and practical bicycle gear crank set. [Simple description of the diagram] Figure 1 is a perspective view of the creation. Figure 2 is a perspective view of a bicycle chainring for use in the present application. M410709 Figure 3 is a perspective front view of the creation. Figure 4 is a front elevational view of another embodiment of the present creation. [Description of main component symbols] 1 : Bicycle chainring 21 : Connecting portion 11 : Short shaft 211 : First end 111 : Short axis end point 212 : Second end 12 : Center 22 , 22 ' : Angle 13 : Positioning portion 3 : crank