TWM436633U - A bicycle crank assembly - Google Patents

A bicycle crank assembly Download PDF

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Publication number
TWM436633U
TWM436633U TW100222330U TW100222330U TWM436633U TW M436633 U TWM436633 U TW M436633U TW 100222330 U TW100222330 U TW 100222330U TW 100222330 U TW100222330 U TW 100222330U TW M436633 U TWM436633 U TW M436633U
Authority
TW
Taiwan
Prior art keywords
crank
spline
crankshaft
sprocket
bicycle
Prior art date
Application number
TW100222330U
Other languages
Chinese (zh)
Inventor
Masahiro Yamanaka
Yusuke Nishimoto
Shingo Shiraishi
Akinobu Sugimoto
Original Assignee
Shimano Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shimano Kk filed Critical Shimano Kk
Priority to TW100222330U priority Critical patent/TWM436633U/en
Publication of TWM436633U publication Critical patent/TWM436633U/en
Priority to DE202012104543U priority patent/DE202012104543U1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62MRIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M3/00Construction of cranks operated by hand or foot
    • B62M3/003Combination of crank axles and bearings housed in the bottom bracket

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)

Description

M436633 五、新型說明: 【新型所屬之技術領域】 合體 本創作係關於-種曲柄組合體,特別是關於自行車曲柄組 【先前技術】 車芊柄組合體具有自由旋轉地支擇於自行車 的曲柄轴。在自行車車架之懸吊部中存在具有i 【新型内容】 【新型所欲解決之問題】 先前,將曲柄組合體裝設於懸吊部 承與曲柄臂的間隙依懸吊部之軸向長度=魏°。、⑶吊奴轴 ,,作之課題為可縱曲柄臂雜*之間隙。 【解決問題之手段】 敕構i創i的f ri行車之曲柄組合體具備曲柄轴盘間_ -端部,並延伸於表面部之徑向外側。間二於第 一構件之旋轉’第一構件難一潘^^弟—構件,依第 該用於自行車之:ίίί構;^轴向可移位地繫合。 件對抵接於第一花鍵之第二構件於轴向^一"^時,第一構 移位,因此可調整曲柄臂與轴承之間隙構彳第—構件於轴向 【新型之效果】 採用本創作,懈第二舰购-細,藉由旋轉 3 間隙 第一構件,第一構件於軸向移位, 因此可調整曲柄臂與軸承之 【實施方式】 <第1種實施形態> 如第本ίΐ第一種實施形態的用於自行車之曲柄垣合體10 如弟-圖所不’係設於形成在車架:體10 ’ 另外,在以後之說明中,關於左右上下係指在 t狀態下從後方觀察自行車時的左右上下。此Us行 在後述的曲柄轴2G之㈣#心位置α切斷 第1,係 。再者,將接近曲柄轴20的轴向中= 為軸向外側。此外,徑向内側及徑向外側於…: 柄軸20之軸芯C2起的徑向作記述。Γ係對於攸曲 螺咬ϋ吊!?之兩端内周面形成用於裳設底托架β之右母 母職部i2b。底姑18具有賴吊部ίϊ ί id27^;27、從懸吊部12之左端旋入的左軸承 及配置於其間而連結兩者之筒狀的連結構件29。 組合體10具有曲柄軸20、裝設於曲柄車 =ί曲W觸件24、繼於‘二= ^ m $26。設制關整構件24是為了使第一曲柄 a,左軸承單元28無間隙,以抑制第一曲柄臂22之晃動抦 曲她=由2〇藉由底托架18 *自由旋轉地裝設於懸吊部12。 2〇Π ί有表面部施、第—端部(第―圖左側之端部) 弟一端部(第一圖右側之端部)2〇c、至少一 固第二花鍵20e 1及抵接部20f。第—端部20b壓 -曲二4 % t柄臂22。在第二端部20c自由裝卸地固定第 26。第二端部20c形成可通過第二曲柄臂26之後述 的第二曲柄安裴孔31a。 第-花鍵20d在第-端部2〇b争延伸於表面部挪之徑 :C2 ^ L2,C2 2〇a^fL^ Z> 丄二在周T向隔以間隔而形成複數個第—花鍵施。第-亦 筮在將第-曲柄臂22裝設於曲柄轴2〇 第—曲柄臂22突出於軸向内側之轴向長度。I、下,、有攸 二花鍵2〇6在曲柄輛2〇之第二端部2〇c t不延伸;^ 幺in产田十^- 至表面#20a的長度L1以下(L3 20b ^ ^ ^p:r4f;^t 1 i〇d 一端部20b延伸於徑向外側。第一曲$ ^曲柄軸%之第 ^第一花_之第—曲柄安合 臂26偏#差180度之相位固定於曲柄H在。第二曲柄 轴 20 33;依第一,件32之旋轉’第一構 1 牛 =:繫ί外第;構=^ 件。第-構件32在内\:=:,第、=金屬製之構 弟二圖所示,第—構件32具有從第一螺32a。如 而沿著徑向形成之縫隙·縫隙进係;為= 邛32c*形成固定螺栓34可 =在苐-突起 32b , 32 件。Ϊ=-33構__,筒狀構 構件二可二構件。第二 二ί 2=f ^徑向外側之細b。筒狀部33上-Ϊ J有,一螺紋部32a之嫩的=;= 卜:第-種貫施形態係為了防止裝設前之第—構件脫落而 筹。卩33b ’不過亦可不設廣部33b 〇 °又 々f ®所示,第二曲柄臂26具有鏈 個臂部3〇a ;及右曲柄31。鏈輪 “裝= Ϊ最如42T)之第一鏈輪35、中間齒數(例如 f:鏈輪36、及齒數最少(例如24Τ)之第三鏈輪37。第一 =====部30係與右曲柄31 一體形成,不過亦 第鏈輪35藉由從軸向内侧插入之複數個第一安裝螺栓 5^,而與第二鏈輪36 一起固定於鏈輪安裝部如。第三鍵"輪、^ 藉由從軸向内側插入之複數支第二安裝螺栓54,而在第二鏈 輪36之徑向内側固定於鏈輪安裝部3〇。 如第一圖所示,右曲柄31延伸於曲柄軸2〇之徑方向。右 曲柄31在第-端具有輪穀部勘。輪栽部训具有第二曲柄M436633 V. New description: [New technical field] The present invention relates to a crank assembly, in particular to a bicycle crank set. [Prior Art] The ram handle assembly has a crankshaft that is freely rotatably selected for the bicycle. There is i in the suspension part of the bicycle frame. [New content] [New problem to be solved] Previously, the crank assembly was installed in the gap between the suspension portion and the crank arm according to the axial length of the suspension portion. = Wei °. (3) Crane slave axis, the subject of which is the gap between the longitudinal arm and the arm. [Means for Solving the Problem] The crank assembly of the f ri driving vehicle of the 敕 i i i i has a crankshaft _ - end and extends radially outward of the surface portion. The second member is rotated by the first member. The first member is difficult to be a member of the body, and is used for the bicycle: ίίί; When the second member abutting the first spline is in the axial direction, the first structure is displaced, so that the gap between the crank arm and the bearing can be adjusted to configure the first member in the axial direction. 】 Using this creation, the second ship is purchased-fine, by rotating the first member of the gap, the first member is axially displaced, so that the crank arm and the bearing can be adjusted. [Embodiment] > The crank-clamping body 10 for bicycles according to the first embodiment of the present invention is not formed in the frame: body 10', and in the following description, regarding the left and right upper and lower systems It refers to the left and right up and down when the bicycle is viewed from the rear in the t state. This Us line is cut by the (4)# heart position α of the crankshaft 2G to be described later. Further, the axial direction of the crankshaft 20 is approximately axially outward. Further, the radially inner side and the radially outer side are described in the radial direction of the shaft core C2 of the shank shaft 20. Γ 攸 攸 攸 ! ! ! ! ! ! !! The inner peripheral surfaces of both ends of the two sides form a right mother-part part i2b for skirting the bottom bracket β. The bottom gull 18 has a left bearing that is screwed in from the left end of the suspension portion 12, and a tubular connecting member 29 that is disposed therebetween to connect the two. The assembly 10 has a crankshaft 20, is mounted on a crankshaft = 曲曲W contact 24, and follows ‘two = ^ m $26. The closing member 24 is provided to make the first crank a and the left bearing unit 28 have no gap to suppress the sway of the first crank arm 22 to distort her = by 2 自由 freely rotating by the bottom bracket 18 * Suspension portion 12. 2〇Π ί has a surface portion, a first end portion (the end portion on the left side of the figure), one end portion (the end portion on the right side of the first figure) 2〇c, at least one solid second spline 20e 1 and abutting Part 20f. The first end 20b is pressed - the second 4% t arm 22. The second portion 20c is detachably fixed to the second end portion 20c. The second end portion 20c forms a second crank hole 31a which can be passed through the second crank arm 26, which will be described later. The first spline 20d is extended at the first end portion 2b to extend over the surface portion: C2^L2, C2 2〇a^fL^Z> 丄2 forms a plurality of segments at intervals of the circumference T Spline application. First, the first crank arm 22 is attached to the crankshaft 2, and the crank arm 22 protrudes in the axially inner side. I, the lower, and the second two splines 2〇6 are not extended at the second end of the crankshaft 2〇2〇 ct; ^ 幺in the field 10^- to the surface #20a the length L1 or less (L3 20b ^ ^ ^p:r4f;^t 1 i〇d One end 20b extends radially outward. The first curved $^ crankshaft% of the first flower_the first-the cranking arm 26 is offset by 180 degrees Fixed to the crank H. The second crankshaft 20 33; according to the first, the rotation of the member 32 'first configuration 1 cow =: system ί outer; structure = ^ piece. The first member 32 inside \:=:, The first member 32 has a slit/slot formed along the radial direction; the = 邛32c* forms the fixing bolt 34.苐-protrusion 32b, 32 pieces. Ϊ=-33 __, cylindrical member 2 can be two members. The second two ί 2 = f ^ the outer side of the radial b. The cylindrical portion 33 - Ϊ J has, The tenderness of a threaded portion 32a =; = Bu: The first type of application is to prevent the first member from falling off before installation. 卩33b 'but there may be no wide portion 33b 〇° and 々f ® The second crank arm 26 has a chain arm portion 3〇a; and a right crank 31. The sprocket "fit = Ϊ is as much as 42T" The first sprocket 35, the intermediate number of teeth (for example, f: the sprocket 36, and the third sprocket 37 having the smallest number of teeth (for example, 24 Τ). The first ===== part 30 is integrally formed with the right crank 31, but also The sprocket 35 is fixed to the sprocket mounting portion together with the second sprocket 36 by a plurality of first mounting bolts 5^ inserted from the axially inner side. For example, the third key "wheel, ^ is axially from the inside The plurality of second mounting bolts 54 are inserted and fixed to the sprocket mounting portion 3A on the radially inner side of the second sprocket 36. As shown in the first figure, the right crank 31 extends in the radial direction of the crankshaft 2''. The right crank 31 has a trough portion at the first end. The wheel plant has a second crank.

DJ 》此外,右 之踏板安裝孔31c。第二曲杯容扭ϋ一鹄具有可裝設踏板 22之轴向外側二二首t,=一曲柄臂 二端部20c插入第一曲柄 面士將曲柄軸20之第 與第一曲柄安穿孔22敏、L22a。此%,使第一花鍵2〇d 22。在該狀態·;,在曲么如亚將曲柄轴㈣入第一曲柄臂 調整構件24之第二構件33 插入間隙 一花鍵20d。其後,將間_ ^構^^接於苐 從第二構件33突屮於缸士 a t 之弟一構件32以不致 藉由緊固構件56將第=/2m〇度相位。最後, 曲柄組合體U)之裝ίΓ射6固疋於曲柄軸20,而完成 構件28樓:時,轉動第-後,告第t對第一構件3移動於軸向内側。而 ί之it =輕=左抽承單元28時,結束第一構件 二構㈣,而ΐ成栓34’將第一構件%固定於第DJ" In addition, the right pedal mounting hole 31c. The second curved cup is twisted and twisted, and has an axially outer two or two ends t for mounting the pedal 22, and a crank arm two end portion 20c is inserted into the first crank. The first crank and the first crank are pierced. 22 Min, L22a. This % makes the first spline 2〇d 22. In this state, the second member 33 of the first crank arm adjusting member 24 is inserted into the gap-spline 20d in the crankshaft (four). Thereafter, the member is attached to the member 32 from the second member 33 so as not to be phased by the fastening member 56. Finally, the assembly of the crank assembly U) is fixed to the crankshaft 20, and when the member 28 is completed, the first member 3 is moved to the axially inner side. And ί之it = light = left draw unit 28, end of the first member two structures (four), and ΐ成栓 34' to fix the first member % to the first

20d J 肷合而微細調整間隙,因断精確調整間隙。4 <第二種實施形態> 而省 M436633 如第四圖及第五圖所示,間隙調整構件124 ί 132' ^ 件133。第—構件132係鐵、紹等金屬製 =1 的有筒=。第一構件132在與第二構件== !32h具有-對凸輪座部咖。一對凸輪座和&係朝向第二 外侧自相對面i32h突出而形成。如第ί圖 =γ有從内周面躺外周面沿著徑方向而形 成32b。設置縫隙132b係為了結束間隙之調整後/ 一構件132不致轉動。在形成縫隙132b之 面之徑向外側的第一突起部132c與第二 而形成。在第一突起㈣中‘=縫$ =!、缝隙im將第-構件132固定於之ζ σ之螺絲孔132f。在第-構件132之外周面,於^ 隔轉動第—構件132 製的製或是合成樹脂製等非金屬 件⑴可。-體構 嵌合於第-構 Π凸輪部_。傾斜凸輪部133e與設一對 其轴向厚綱轉相崎輸 M436633 部形成用於管制第一構侔n? 133f。夢由管制邱 H ^32之_動作的一對管制部 度。错由&制^ 133f官制第—構件132之旋轉在度程 X、晶ft第二?實施形態係以突起部構成凸輪座部132a, d二限定於此。只要是繫合於傾斜凸輪部133c之形 Ϊ反°例如’亦可以傾斜於與傾斜凸輪部133c =構成’鋪斜面繫合於爾凸輪部13允。 ΪΓ 凸輪部設於第—構件,將凸輪座部設於第二 =個 卩及傾斜凸輪缝量祕秋2個,亦可 应第第;^實:形態的曲柄組合體⑽,仍可達到 ㈣效果。此外,由於使第一構件 疋,調整即完成,因此可迅速進行間隙調整。 <第二種實施形態> 如第六圖所示,第三種實施形態之曲柄軸 ,似之結構與第-及第二種實施形態不同。曲 有么螺紋部220h ’該公螺紋部22〇h配置於第一花鍵2观之 ,向内側’延伸於表面部22Ga之徑向外側,且不延伸於 徑向㈣。公螺紋部遍與左軸承私28隔開 ^Γ曲柄臂22之第一曲柄安裝孔22a内周部22c的師 之外徑大。藉此,可對曲她220之第—: 展設。另外’第三種實施形態之曲柄軸220並 非£入,而係猎由接著固定於第一曲柄臂22。 間隙調整構件224具有與第-種實施形態之第 同^構的第一構件232。另外,第六圖中,係將第 之符號加上200的符號,而註記成第一構件232。因此,以 f2:第一構件232的結構,與第-麵 第一構件232在内周面具有螺合於公螺紋部22%之母螺 M436633 紋部232a。 其他結構與第一種實施形態同樣,因此省略說明。 如此結構之第三種實施形態’可簡化間隙調整構件224 , 結構。 <其他實施形態> 以上’係就本創作之三種實施形態作說明,不過,本創作 並非限定於上述實施形態者,在不脫離創作之要旨的範圍内 作各種變更。 (X)前述實施形態係在並無鏈輪安裝部3〇之第一曲柄臂、 與左軸承單元28之間配置間隙調整構件,不過本創作不限定 於此。亦可在具有鏈輪安裝部3〇之第二曲柄臂26與右軸承單 元27之間配置間隙調整構件。此時’係以第二曲柄臂%側之攀 ^二花鍵延伸於表面部之徑向外側的方式而構成,只要以第一 花鍵不延伸於表面部之徑向外側的方式構成即可。 (b)前述實施形態之曲柄軸,為了減輕重量而係中空, 過曲柄軸亦可為實心者。 二 ,(c)前述實施形態係在間隙調整構件中設有螺絲或凸輪,不 過^創作不限定於此。例如,亦可藉由螺旋狀之溝與繫合於溝 之突起’並藉由第一構件之旋轉,而使第一構件移動於軸方^。 ⑼前述實施形態之抵接部20f係延伸於第一花鍵2〇d之 向外側,不過本創作不限定於此。只要第一花鍵延伸於表㈣ · 2〇a之軸向外側,亦可不延伸於第一花鍵之軸向外側。°, =部20f係形成於全周’不過,抵接部亦可在周方向局部地The 20d J is adjusted to finely adjust the gap, and the gap is precisely adjusted due to the break. 4 <Second Embodiment> and M436633 As shown in the fourth and fifth figures, the gap adjusting member 124 ί 132' ^ 133. The first member 132 is made of metal such as iron or shovel. The first member 132 has a pair of cam seats with the second member == !32h. A pair of cam seats and & are formed so as to protrude toward the second outer side from the opposite surface i32h. As shown in Fig. = γ, 32b is formed along the radial direction from the outer peripheral surface of the inner peripheral surface. The slit 132b is provided in order to end the adjustment of the gap/one member 132 does not rotate. The first protrusion portion 132c on the radially outer side of the surface on which the slit 132b is formed is formed in the second direction. In the first protrusion (four), the hole 136 is screwed to the screw hole 132f of the ζ σ. The outer peripheral surface of the first member 132 may be rotated to rotate the first member 132 or a non-metallic member (1) made of synthetic resin or the like. - The body is fitted to the first-frame cam portion _. The inclined cam portion 133e is formed to control the first configuration n? 133f by providing a pair of axially thick phase-transfer M436633 portions. The dream is controlled by a pair of control units of Qiu H ^32's action. The rotation of the first member 132 is in the range of X and the second embodiment of the crystal ft. The embodiment forms the cam portion 132a with protrusions, and d is limited thereto. As long as it is attached to the inclined cam portion 133c, the shape may be inclined to be coupled to the inclined cam portion 133c = the inclined surface to be coupled to the cam portion 13.凸轮 The cam part is set in the first member, and the cam seat is set in the second = one 倾斜 and the inclined cam seam is 2, and can also be the first; ^: the form of the crank assembly (10) can still reach (4) effect. Further, since the adjustment is completed by the first member, the gap adjustment can be performed quickly. <Second Embodiment> As shown in Fig. 6, the crankshaft of the third embodiment is different in configuration from the first embodiment and the second embodiment. The threaded portion 220h' is disposed on the first spline 2, extends inwardly to the radially outer side of the surface portion 22Ga, and does not extend in the radial direction (four). The male thread portion is spaced apart from the left bearing member 28. The outer diameter of the inner peripheral portion 22c of the first crank mounting hole 22a of the crank arm 22 is large. In this way, the second of her songs can be set up:: Further, the crankshaft 220 of the third embodiment is not accommodating, and the tying is then fixed to the first crank arm 22. The gap adjusting member 224 has the first member 232 of the first embodiment of the first embodiment. Further, in the sixth drawing, the symbol of the second symbol is added to the first symbol 232. Therefore, the structure of the first member 232 and the first surface member 232 have a female screw M436633 pattern portion 232a which is screwed to the male screw portion 22% on the inner peripheral surface. The other configuration is the same as that of the first embodiment, and thus the description thereof is omitted. The third embodiment of the configuration simplifies the gap adjusting member 224 and the structure. <Other Embodiments> The above description is based on the three embodiments of the present invention. However, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the invention. (X) In the above embodiment, the gap adjusting member is disposed between the first crank arm and the left bearing unit 28 without the sprocket mounting portion 3, but the present invention is not limited thereto. A gap adjusting member may be disposed between the second crank arm 26 having the sprocket mounting portion 3 and the right bearing unit 27. At this time, it is configured such that the two-handed spline on the second crank arm % side extends radially outward of the surface portion, and the first spline may be formed so as not to extend radially outward of the surface portion. . (b) The crankshaft of the above embodiment is hollow in order to reduce the weight, and the crankshaft may be solid. (c) In the above embodiment, the screw or the cam is provided in the gap adjusting member, and the creation is not limited thereto. For example, the first member may be moved to the axial direction by the spiral groove and the protrusion □ attached to the groove and by the rotation of the first member. (9) The abutting portion 20f of the above embodiment extends outward from the first spline 2〇d, but the present creation is not limited thereto. As long as the first spline extends on the axial outer side of the table (4) · 2〇a, it may not extend beyond the axial outer side of the first spline. °, the portion 20f is formed over the entire circumference. However, the abutting portion may also be partially in the circumferential direction.

(e)前述實施形態係將第一螺紋部32a作為母 二螺紋部33c作為公螺紋,不過亦可顛倒。 ' W 【圖式簡單說明】 第一圖係本創作第一種實施形態的用於自行車之曲柄組 合體的剖面圖。 放大i。11係第—種實施形之第—曲柄臂裝設部分的到面 第四i Ϊ 一種ΐ施形?之間隙調整構件的分解斜視圖。 第五圖二種實施形態之相當於第二圖的圖。 第六第二種實施形態之相當於第三圖的圖。 八θ系第三種實施形態之相當於第二圖的圖。 【主要元件符說說明】 10, 110,210 用於自行車之曲柄組合體 12 懸吊部. 12a 右母螺紋部 12b 左母螺紋部 18 底托架 20 曲柄車由 20a 表面部 20b 第一端部 20c 第二端部 20d 第一花鍵 20e 第二花鍵 20f 抵接部 20g 母螺紋部 22 第一曲柄臂 22a 第一曲柄安裝孔 M436633 22b 踏板裝設孔 22c 内周部 22d 軸向外侧面 22e 軸向内側面 24 間隙調整構件 26 第二曲柄臂 27 右軸承單元 28 左軸承單元 29 連結構件 30 鏈輪安裝部 30a 臂部 31 右曲柄 31a 第二曲柄安裝孔 31b 輪穀部 31c 踏板安裝孔 32 第一構件 32a 第一螺紋部 32b 縫隙 32c 第一突起部 32d 第二突起部 32e 貫穿孔 32f 螺絲孔 12 M436633(e) In the above embodiment, the first screw portion 32a is used as the male screw portion 33c as a male screw, but may be reversed. 'W [Simple description of the drawings] The first figure is a cross-sectional view of a crank assembly for a bicycle according to the first embodiment of the present invention. Zoom in i. The 11th type of the first implementation - the face of the crank arm assembly part is the fourth i Ϊ a shape? An exploded perspective view of the gap adjusting member. Figure 5 is a view corresponding to the second figure of the two embodiments. A diagram corresponding to the third diagram of the sixth embodiment. The eighth embodiment of the eighth embodiment corresponds to the second figure. [Main component description] 10, 110,210 Crank assembly for bicycle 12 Suspension. 12a Right female threaded portion 12b Left female threaded portion 18 Bottom bracket 20 Cranked car 20a Surface portion 20b First end portion 20c Two end portions 20d first spline 20e second spline 20f abutment portion 20g female screw portion 22 first crank arm 22a first crank mounting hole M436633 22b pedal mounting hole 22c inner peripheral portion 22d axial outer side surface 22e axial direction Inner side surface 24 gap adjusting member 26 second crank arm 27 right bearing unit 28 left bearing unit 29 joint member 30 sprocket mounting portion 30a arm portion 31 right crank 31a second crank mounting hole 31b valley portion 31c pedal mounting hole 32 first Member 32a first threaded portion 32b slit 32c first protruding portion 32d second protruding portion 32e through hole 32f screw hole 12 M436633

32g 操作突起 33 第二構件 33a 筒狀部 33b 簷部 33c 第二螺紋部 34 固定螺栓 35 第一鏈輪 36 第二鏈輪 37 第三鏈輪 52 第一安裝螺栓 54 第二安裝螺栓 56 緊固構件 124 間隙調整構件 132 第一構件 132a 凸輪座部 132b 縫隙 132c 第一突起部 132d 第二突起部 132e 貫穿孔 132f 螺絲孔 132g 操作突起 133 第二構件 M436633 133a 筒狀部 133b 簷部 133c 傾斜凸輪部 133d 繫合凹部 133e 相對面 133f 管制部 220 曲柄軸 220a 表面部 220d 第一花鍵 220h 公螺紋部 224 間隙調整構件 232 第一構件 232a 母螺紋部 Cl 軸向中心位置 C2 軸芯 LI 長度 L2 長度 L3 長度 L4 長度32g operation projection 33 second member 33a cylindrical portion 33b jaw portion 33c second thread portion 34 fixing bolt 35 first sprocket 36 second sprocket 37 third sprocket 52 first mounting bolt 54 second mounting bolt 56 fastening Member 124 Clearance member 132 First member 132a Cam seat portion 132b Slot 132c First protrusion 132d Second protrusion 132e Through hole 132f Screw hole 132g Operation protrusion 133 Second member M436633 133a Cylindrical portion 133b Crotch portion 133c Tilt cam portion 133d engagement recess 133e opposite surface 133f control portion 220 crank shaft 220a surface portion 220d first spline 220h male thread portion 224 gap adjustment member 232 first member 232a female thread portion Cl axial center position C2 shaft core length L2 length L3 Length L4 length

Claims (1)

2. -合體,其中 部 3. 4. 5. 6. 申請專利範圍: -種用於自行車之曲她合體,其 及至有其J面::!-,;第二端部; 述表面部延伸於徑向外側及己於别述第一端部,並從前 曲柄軸旋件’其係可對前述 前述第一 她接於前述第—花鍵;依 向可移位轉合。月㈣構件對前述第二構件於軸 如申請專利範圍第】項的用鱼 前縣-娜财第—職部,仃車之曲柄組 前述第二構件具有螺合於前述第一螺紋部之第二螺紋 ㈣合體’其中 間隔,置之複數個傾斜凸輪部,,、有在周方向隔以 ^申^專^範圍第3項或第4項的用於自行車之 Ξ申請專月^第圍^件可一體旋轉地繫合於前述第 第—花鍵之第-曲柄安裝孔。_,、有繫合於前述 15 8·2. - Fit, the middle part 3. 4. 5. 6. The scope of the patent application: - The type of the bicycle used for her fit, and its J-face::!-,; the second end; On the radially outer side and the first end portion, and from the front crank shaft member, the first front portion of the first cranking member is connected to the first spline; The fourth member of the month (4) is used for the second member in the shaft, such as the patent application scope of the first item, and the second member of the brake group of the brake has the screw thread of the first thread portion. Two-threaded (four) fits in which the space is divided into a plurality of inclined cam portions, and there is a bicycle for the application of the third or fourth item in the circumferential direction. The member is integrally rotatably coupled to the first crank-mounting hole of the first spline. _,, is tied to the aforementioned 15 8·
TW100222330U 2011-11-25 2011-11-25 A bicycle crank assembly TWM436633U (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW100222330U TWM436633U (en) 2011-11-25 2011-11-25 A bicycle crank assembly
DE202012104543U DE202012104543U1 (en) 2011-11-25 2012-11-23 Bicycle crank assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW100222330U TWM436633U (en) 2011-11-25 2011-11-25 A bicycle crank assembly

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TWM436633U true TWM436633U (en) 2012-09-01

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TW (1) TWM436633U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI675779B (en) * 2017-08-09 2019-11-01 日商山葉發動機股份有限公司 Drive unit and electric assist bicycle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI675779B (en) * 2017-08-09 2019-11-01 日商山葉發動機股份有限公司 Drive unit and electric assist bicycle
US10933944B2 (en) 2017-08-09 2021-03-02 Yamaha Hatsudoki Kabushiki Kaisha Drive unit and electrically assisted bicycle

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