TW393414B - Sprocket shape of bike's derailleur system - Google Patents
Sprocket shape of bike's derailleur system Download PDFInfo
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五、發明說明(I) 本創作為自行車後變速系統之多段鏈輪之新槿π =為使鏈條由大鏈輪換至.小鍵輪(下鍵動作)時能U順 之下μ予以適當修整’控制大鍵輪 =置輪:::鏈 輪將鍵條從大鍵輪 不二時:;法!=鏈輪,可时 =可以跨出大鏈輪,❹鏈::的條 所扣定的下鏈路徑,並勾上小鏈,认鏈知依序靠在 :逐漸脫離大鍵輪進入小鍵輪,最後達到==目鍵 五、發明說明(2) 自行車變速器的換鏈動作可概分為上鏈和下鏈兩種, 習用的自行車多段鏈輪裝置設計大抵為針對上鏈動作,下 鏈則鮮少為人所考慮。 傳統的自行車鏈輪裝置並無針對鏈條換鏈時的下鏈動 作做特殊之設計,當騎乘者撥動變速桿,換鏈動作隨即發 生,此時鏈節將隨導鏈導輪偏擺跨出大鏈輪齒部,鏈節邊 板易騎跨於大鏈輪齒尖β隨著鏈輪組的旋轉,鏈條偏出大 =輪齒4因大、小鏈輪無特定路徑及特殊相位關係之設 2 -般情況下鏈條滾子將不立即進入小鏈輪齒槽内,而 有-段鏈條會騎跨於小鏈輪齒尖(@ —) 小鏈輪齒槽中》在換鏈過鋥φ,今、^衣于木飲 於瞌Wr而入 程中則述之騎跨段鏈節極可能 二ί輪上。此時,由於鍵條忽然由鍵輪 吸收ϋ此突ίΐϋ 持鏈條於緊崩狀態,&向急*旋以 Κ鏈卽,對於騎乘者而言,由於變速器基板 五、發明說明(3) 的反向急旋,腳部感受踏板的反作用力忽然變小,如同踩 空’故將有不適現象,此即下鏈動作的不順暢。 [本創作所欲解決之問題] · 下鍵與_L鍵的變速過程能否順利,與騎乘者在換檔時的舒 適感一樣重要,本創作以下鏈的整体過程為考量,如何平 順地完成-下鏈動作為目標』.此為本創作構思由來亦為本 作所欲解決之問題。 _ α [技術— 範疇] - 一種使用於,段式變速自行車的鏈輪組至少包含一大 鏈輪及一小鏈輪,本創作係一以電腦辅助設計/製造為工 具之鏈輪組設計結果,使下鏈動作進行時鏈條能 鏈輪換至小’鏈輪。 八 [先前技術] 在近年出現自行車鏈輪組之設計雖已有下鏈之專利, 例如公告第1137丨7號"自行車飛輪齒片齒形結構",第 1 28371號"自行車多段鏈輪裝置",第⑻㈣號"腳踏^ 輪及包含有複數此類鏈輪之腳踏車用飛輪":第1 6962〇 號自仃車變速鏈輪齒形之改良".,第172976號及第1 7431 4 五、發明說明(4) ' 號"鏈條之外鏈片改良構造",第】δ573ι號及第1 97683號"· 自行車用,多段鏈輪裝置",第1 88539號,,變速自行車鏈條之 改良構造"。該設計基本上為使鏈條容易脫離大鏈輪至小 鏈輪,並設定了鏈條的下鏈路徑,其作法是將位於大鏈輪 上的換鏈路徑鏈條位置提高至齒尖,保持下鏈路徑的鏈條 成直線而換跨至小鏈輪,可是下鏈過程令鏈條由大鏈輪落 至小鏈輪時的衝擊力量仍大。即使論及齒形之改良如第 1 67026,號’第1857们號,第1 97683號均採取定型之齒形呈· 凹陷> 除斜切.面或鏈輪之齒頂;仍然先理想。 卷利公舉公告毛1 97683號”自行車用多段鏈輪裝置", 其對下鏈的設計特徵為對大鏈輪之2至3個齒形修整*;使鏈 受V. Explanation of the invention (I) This creation is the new hibiscus of the multi-stage sprocket of the bicycle rear transmission system. Π = In order to change the chain from a large sprocket to a small one. The small key wheel (down key action) can be properly trimmed under the μ. 'Control large key wheel = set the wheel ::: sprocket to remove the key bar from the large key wheel :; method! = Sprocket, when available = can step out of the large sprocket, the chain :: Down the chain path, and hook up the small chain, and recognize the chain in order: lean away from the large key wheel and enter the small key wheel, and finally reach == key key V. Description of the invention (2) The chain changing action of the bicycle transmission can be summarized Divided into two kinds of upper and lower chain, the design of the conventional bicycle multi-segment sprocket device is mostly aimed at the upper chain action, and the lower chain is rarely considered. The traditional bicycle sprocket device does not have a special design for the lower chain action when the chain is changed. When the rider toggles the shift lever, the chain change occurs immediately. At this time, the chain link will follow the guide chain and the guide wheel. With the large sprocket teeth, the chain link side plate can easily ride over the large sprocket tip β. With the rotation of the sprocket set, the chain deviates from the large = the gear 4 has a large path, and the small sprocket has no specific path and special phase relationship. Setting 2-Under normal circumstances, the chain roller will not immediately enter the small sprocket cogging, but the chain segment will ride on the small sprocket tip (@ — in the small sprocket cogging).鋥 φ, this and ^ clothing Yu Muyin in 瞌 Wr, and the riding span chain link mentioned in the journey is most likely on the second wheel. At this time, because the key bar was suddenly absorbed by the key wheel, the chain was held in a tightly collapsed state, & Twist with the KK chain, for the rider, due to the transmission substrate 5. Description of the invention (3) The reverse sharp spin of the foot suddenly feels the reaction force of the pedal becomes smaller, like stepping on the air, so there will be discomfort, which means that the action of the lower chain is not smooth. [Problems to be solved by this creation] · Whether the shift process of the down button and the _L button is smooth is as important as the rider's comfort when shifting gears. The overall process of the following chain in this creation is to consider how to smoothly "Complete-off-chain action as the goal". This is the origin of the creative idea and the problem that this creative wants to solve. _ α [Technology — Category]-A sprocket set for a stepped bicycle with at least a large sprocket and a small sprocket. This creation is the result of a computer-aided design / manufacturing sprocket set. , So that the chain can be changed to a small 'sprocket' when the chain moves. [Previous technology] In recent years, the design of bicycle sprocket sets has been patented, such as the announcement No. 1137 丨 7 " Bicycle flywheel toothed tooth structure ", No. 1 28371 " Bicycle multi-segment chain Wheel device ", No. 脚踏 " Pedal ^ wheels and flywheels for bicycles including a plurality of such sprockets ": Improvement of the tooth profile of bicycle transmission sprocket No. 16962, ", No. 172976 No. and No. 1 7431 4 V. Description of the Invention (4) 'No.' "Improved Structure of Chains Outside the Chain", No. δ573ι and No. 1 97683 " · For Bicycles, Multi-Segment Sprocket Device ", No. No. 88539, Improved Structure of Variable Speed Bicycle Chain ". The design is basically to make the chain easily detach from the large sprocket to the small sprocket, and set the lower chain path of the chain. The method is to increase the chain position of the chain change path located on the large sprocket to the tip of the tooth and maintain the lower chain path. The chain is in a straight line and changes to the small sprocket, but the impact force is still large when the chain is dropped from the large sprocket to the small sprocket. Even when it comes to the improvement of the tooth shape, such as No. 1 67026, No. 1857, No. 1 97683, they all adopt a fixed tooth shape · Dent > except for the oblique cut surface or the tooth top of the sprocket; it is still ideal first. Volleyball Public Announcement Mao 1 97683 "Multi-segment sprocket device for bicycles", its design for the lower chain is to trim 2 to 3 teeth of the large chain wheel *;
條容易朝小鏈輪方向脫離,並在鏈輪側面設支承部,頂I ,節丄再由導鏈導輪將鏈條帶至小鏈輪之適當位置(與頂 南鏈蜻之滾子直線距離np-a),經鏈輪組的旋轉帶動完 下鏈動作。 , 該專利設計上並未考慮大鏈輪上非下鏈鏈輪齒的修 整,故下鏈可能發生不預期之騎跨齒現象。又,其設計於 下鏈時為使脫離大鏈輪之鏈節滾子與抵達小鏈輪之鏈節滾 子直線距離ρ-a,故頂高脫離大鏈輪之數個鏈節,其於換 鏈初,雖安排了下鏈鏈條的鏈節位置,但在'換鏈將完成、 頂高之鏈節離開大鏈輪時,原下鏈路徑中之鏈條將急速掉 入小鏈輪’對小鏈輪造成衝擊。 五、發明說明(5) [技術内容] 為免除下鏈動作的不預期.現象,首要即是對齒形進行 修整以區分大鏈輪上的特定下鏈點及非下鏈點,確切掌握 鏈條在大鏈輪上的下鏈位置’齒形排列及設計才能以此為 依據,而非任其隨機進行換鏈》從另一方面來看,非下鍵 秽的設定在裨條意欲偏擺出大鏈輪時,若靡使鏈節邊板不 跨·出鏈輪齒尖,則可虼遲下鏈動作(圖乒(〇 ),直至鏈條 抵達下鏈點時方進行下鏈動作(圖二(b))。 、 關於控制下鏈點的齒尖丨|整,鹵三中定義7關鍵鏈節 kri t i ca 1 chain,;Ce ··,3)此為-導輪牵引鏈條往小鏈輪方 向時判別鏈條是否可偏離大鏈輪的鏈節β 本創作"自行車後變速系統之多段鏈,輪之新構形",之 ^要目的為使鏈條由大鏈輪換至小鏈輪(下鏈動作)時能夠 平順進行。 鏈位ί創作之另一目的在於確切掌握鏈條在大鏈輪上的下 定位署,齒形排列及設計,‘严许算適气>修整鏈輪之齒尖特 係對大鍵輪之齒尖予以適當修整,控制大鏈輪 本創作The strip is easy to disengage in the direction of the small sprocket, and a support part is set on the side of the sprocket, top I, and the joint is then brought by the chain guide to the appropriate position of the small sprocket (linear distance from the roller of the top south chain dragon) np-a). The rotation of the sprocket set drives the lower chain action. The patent design does not consider the modification of the non-downlink sprocket teeth on the large sprocket, so the undesired riding span may occur on the lower chain. In addition, it is designed to make the linear distance ρ-a between the link rollers leaving the large sprocket and the link rollers reaching the small sprocket when the chain is lowered. At the beginning of the chain change, although the positions of the chain links of the lower chain are arranged, when the chain change is completed and the top link leaves the large sprocket, the chain in the original lower path will quickly fall into the small chain wheel. The wheel causes an impact. V. Description of the invention (5) [Technical content] In order to avoid the undesired action of the lower chain, the first thing is to modify the tooth profile to distinguish the specific lower chain point and non-low chain point on the large sprocket, to grasp the chain exactly In order to use this as the basis for the tooth arrangement and design of the lower chain position on the large sprocket, instead of randomly changing the chain, "on the other hand, the setting of the non-downward key is intended to be biased. In the case of a large sprocket, if the chain link side plate does not cross and the sprocket tooth tip is released, the lowering action can be delayed (Figure Ping (〇), until the chain reaches the unwinding point before the unloading action (Figure 2 (B)). 、 Regarding the control of the tooth tip of the lower chain point 丨 | rectification, halogen key 3 is defined as 7 key chain links kri ti ca 1 chain ,; Ce ··, 3) This is-the guide wheel pulls the chain to the small chain wheel Determine whether the chain can deviate from the chain link of the large sprocket in the direction of the β β This creation "multi-chain chain of the bicycle rear transmission system, the new configuration of the wheel", the main purpose is to change the chain from a large chain wheel to a small chain wheel ( Down chain action) can be performed smoothly. The other purpose of the creation of the chain is to accurately grasp the positioning of the chain on the large sprocket, the arrangement and design of the tooth shape, and the 'strict tolerance is appropriate'> trimming the teeth of the sprocket is particularly to the teeth of the large key wheel Tips should be properly trimmed to control the creation of large sprockets
五 發明說明(6) 五 發明說明(6) 之下鏈位置及非下鏈 換掛路徑,排定大、 鏈條的干涉部分。當 向牽引’鏈條在非下 不預期下鏈的換擋不 時-則可以跨出大鏈輪 所指定的下鏈路徑, 條逐漸脫離大鏈輪進 位置,並在下鏈位置指定適當的鏈條 小鏈輪之相位,削除大、小鏈輪上與 導鏈導輪將鏈條從大鏈輪往小鏈輪方 鏈位置時將無法跨出大鏈輪,可避免 順号象。反之,當鏈條到達下鏈位置 ,隨著鏈輪組的旋轉,鍵_節依序靠在 並勾上小鏈輪,鏈輪組繼續旋轉,鏈 入小鏈輪'•,最後達到平順不鏈的目 的 為達到本創作適當修整$鏈輪齒尖,以控制大鏈輪之 下鏈位置及非下鏈位置,並使下鏈位置指是適當的鏈條逐 漸脫離大鍵輪進入小鏈輪,達到平順下鏈目的1除需要定 義非下鏈點(:匕,21 ),下鏈點(匕,22 )外,尚需計算路 徑中鏈節的位置。 圖四為下鏈動作發生時鏈節偏擺位於大鏈輪上的初始 位置,以關鍵鏈節, 3)為依據,考慮鏈節(ce,3)在接 觸鏈輪接觸點(及,1)的瞬間其鏈板的位置非下鏈點(Five Descriptions of the Invention (6) Five Descriptions of the Invention (6) Down-link position and non-down-link changeover path, arrange the interference part of the large chain. When the towing chain is not expected to shift down the chain from time to time-you can cross the down chain path specified by the large sprocket, the bar gradually moves away from the large sprocket advance position, and an appropriate chain is designated at the lower chain position. The phase of the sprocket can be removed when the large and small sprocket wheels are removed from the large sprocket when the chain is moved from the large sprocket to the small sprocket. Conversely, when the chain reaches the lower chain position, as the sprocket group rotates, the key _ link leans on and hooks on the small sprocket in order, the sprocket group continues to rotate and links into the small sprocket ', and finally reaches a smooth chain. The purpose of this is to properly trim the sprocket teeth of this creation to control the lower chain position and non-down chain position of the large chain wheel, and make the lower chain position mean that the appropriate chain gradually escapes from the large key wheel and enters the small chain wheel. In addition to the definition of non-downlink points (: dagger, 21) and down-link points (dagger, 22), the purpose of smoothing downlinks is to calculate the position of the links in the path. Figure 4 shows the initial position of the chain link on the large sprocket when the chain action occurs. Based on the key links, 3), consider the link (ce, 3) at the contact point of the sprocket (and, 1). The moment the position of its chain plate is not the down-link point (
Pcrl,21 )在Z轴向的位移如圖五(a)所示的非下鍵齒尖削除 (:心,41 ),當齒尖修整後$,頂僅存$度(Λ 31 )時,若 W則鍵節偏擺不出大鍵輪,可達延遲下鏈的目的, 此為非下鏈點* · ' 同理’若鏈節(,ce,3)在接觸鏈輪接觸點(乂,丨)的瞬間Pcrl, 21) The displacement in the Z-axis direction is shown in Figure 5 (a). The non-down key tooth tip is removed (: heart, 41). When the tooth tip is trimmed, the top is only $ degrees (Λ 31). If W, the key links cannot oscillate the large key wheel, which can achieve the purpose of delaying the unwinding. This is a non-unloading point. * "Similarly" if the link (, ce, 3) is at the contact point of the sprocket (乂, 丨) the moment
第13頁 E明說明(7) 匕板的位置下鏈點(4,22 )在Z軸向的位移如圊五(b) :的非下鏈齒尖削除,4 2 ),當齒尖修整後齒頂僅 .度(/·,32 )時’若//2+心以.則鏈節將偏擺出大鏈 達,下鏈的目的,此為下鏈點。. I免除-廣下鏈路徑中之鏈條急速掉入小鏈輪對小鏈輪 成的衝擊力量’本創作對下鏈路徑的決定,以囷七的 線下鍵方式決定下鏈路徑中鏈節的關係位置。 _ • - - - * — ~ · * ?於内鏈節與外鏈節間的間隙,使得鏈條在導鍵導輪 下得以偏擺,利用it樣的特性*經電腦計算後可以決 個換鏈路徑的鏈節數g,i而決定鏈條由大鏈輪換^ 輪的下鏈路徑,如圖八所示· - _將下鏈路徑與齒尖的修整結合,則可知鏈條在非下 1鏈齒及下鏈齒的偏擺情形。圖八(a)爲導鏈導輪將鏈條往 小鍵輪方向牽引時鏈條遇下鏈齒時偏擺出大鏈輪且依擴下 鏈指定路徑抵達小鏈輪的鏈條位置;圖八(b)為導鍵導輪 將鍵條往小鍵輪方向牵引時遇非下鏈齒時鏈條無法偏擺出 大鍵輪的鍵條位置;圖八(c)為導鏈導輪尚未將鏈條牽^丨 至鏈,時鏈條位於大轉輪上的位置。圖中標示了鏈輪組 之旋轉前進方向及導鏈導輪牵引鏈條的方向β '、 決定整個換鏈路徑的鏈節數目,鏈條從大鏈輪至小鍵E on page 13 states (7) the position of the dagger, and the displacement of the lower chain point (4, 22) in the Z-axis direction is as shown in Figure 5 (b): the non-downlink tooth tip is removed, 4 2), when the tooth tip is trimmed When the top of the back tooth is only .degree (/ ·, 32), 'If // 2 + 2 + is centered, then the chain link will swing out of the large chain, and the purpose of the lower chain is the lower chain point. I exemption-the chain in the wide down-chain path quickly falls into the impact force of the small sprocket on the small sprocket. 'This creation's decision on the down-chain path, the link in the down-chain path is determined by the offline key of 27. Relationship position. _ •---* — ~ · *? The gap between the inner link and the outer link makes the chain yaw under the guide key guide wheel, using it-like characteristics * After computer calculation, you can decide a chain change The number of links in the path is g, i, and the chain is changed from a large chain wheel to the chain path of the ^ wheel, as shown in Figure 8.-_Combining the chain path with the trimming of the tooth tip, we can know that the chain is in the lower chain 1 And the deflection of the lower teeth. Figure 8 (a) shows the chain position of the small sprocket when the chain pulls the chain towards the small keywheel when the chain guide pulls the chain towards the small keywheel and reaches the small sprocket according to the designated path of the extended lower chain; Figure 8 (b) ) For the guide key guide wheel when the key is pulled toward the small key wheel, the chain cannot deflect the key position of the large key wheel when it is not under the chain teeth; Figure 8 (c) shows that the guide wheel has not pulled the chain ^丨 To the chain, when the chain is located on the big wheel. The figure shows the forward direction of rotation of the sprocket set and the direction β 'of the chain traction by the guide chain. The number of links that determine the entire chain change path, the chain from the large sprocket to the small key
第14頁 五、發明說明(8) 輪的下鏈路徑中鏈節偏擺相對位置將如圖八(a)所示。 根據下鏈路徑中鏈節的偏擺情形觀察圓七之非直線下 鏈路徑的鏈節間關係,可知圖中,下鏈路·徑的第1個鏈節· 為脫離大鏈輪^鏈節,其始端滾子(I)位於大鏈輪之齒槽 内.,下鏈路徑的最後一個鏈節為抵達小鍵_輪的鏈節,其末 端滾子(E)位於小鏈輪之齒槽内,鏈節與鏈節間的關係各 有一定的相對折角' ,7,為第i鏈節相對於i -4鏈節的轉 角。下鏈(鍵節滾子中心_專鏈輪組中心的距離長度必介於大π 鏈輪及小鏈輪的半徑長度之間,且· 7ί乏〇_。 -當下鏈路#決定c,即可計算路徑中鏈節的位置,而 大、小鏈輪的相角差可由鏈條之脫離鏈節始端滾子(I)在 大鍵輪齒槽的位置至鏈條抵達小鏈輪的鏈節末端滾子 位置決定,如圖九所示之相位角(κ)。 —最後對大、小鏈輪的齒側進行如圖十之修整,其用意 為承裁下鏈路徑令的鏈節,一為削除下鏈路徑中的鏈節 與鏈輪間圖十上⑴的干涉部分,即告完成· 圖十一 1 m I AA ~馬圖十中削除干涉部分後大鏈輪側視圓及關鍵 齒的剖面圈^ 〇 經以 μ · ' 之程續,使用CATIA軟体進行鏈輪干涉削除即可 五 '發明說明(9) 據\此進行電腦之輔助製造。 [技術特點] 9- 9- ^ 1.本創作區分了特定下鏈點及非下鏈點的齒形修整, 藉以確切掌握鏈修在鏈輪上-的下鏈位屋,齒形排列及設計 並以此為依據,而非任其隨機進行換鏈。 气 2广本創作對下鏈路徑的決定,以非直線下鏈方式決$ _ 下鏈路徑中鏈節的關係位置,改善.了下鏈動作將完成時鏈 條急速埤入小鏈輪對小鏈輪所造成的衝擊現象。 - 3.各種自行車後變速系統之多段鏈輪,+已建立修整模 · 式,如13齒與28齒鏈輪組之修整方式係於前4鏈輪之2位 置削除,後前2鏈輪之2位置削除* * ,, [功效] 在[創作背景]中曾提及鏈條由大鏈輪換至小鏈輪時的 不順暢將直接反應在變速器基板的角度急旋。即,換鍵不 順暢所%,多的騎跨齒現象將於鏈條逐漸脫離大鏈輪進入小 •鍵輪的瞬間落下而合於小鏈輪齒槽申,此時變速器基板的 拜角、•,基·板的角速度政/#,基板的角加速度必將 產生驟變。Page 14 V. Description of the invention (8) The relative position of the chain link yaw in the lower chain path of the wheel will be shown in Figure 8 (a). According to the deflection of the chain links in the lower chain path, observe the relationship between the links of the non-linear lower chain path of Yuan Qi. It can be seen that the first chain link of the lower chain · diameter is separated from the large sprocket ^ The starting roller (I) is located in the cogging of the large sprocket. The last link of the lower chain path is the link that reaches the small key_wheel. The end roller (E) is located in the cogging of the small sprocket. Inside, the relationship between the links and the links has a certain relative angle of inflection, '7, which is the corner of the i-th link relative to the i-4 link. The length of the chain (the center of the key roller roller _ the center of the special sprocket set must be between the radius of the large π sprocket and the length of the small sprocket, and · 7ί exhausted __-the current link # determines c, ie The position of the chain links in the path can be calculated, and the phase angle difference between the large and small sprocket can be rolled out of the chain by the roller at the beginning of the chain (I) at the position of the cog of the large key wheel until the chain reaches the end of the chain of the small sprocket The sub-position is determined, as shown in the phase angle (κ) shown in Figure 9.-Finally, the tooth sides of the large and small sprocket wheels are trimmed as shown in Figure 10, which is intended to cut the links of the lower chain path order, one is to remove The interference part of the upper chain between the chain link and the sprocket in the lower chain path is completed. Figure 11 The section of the side circle of the large sprocket and the key teeth after removing the interference part from 1 m I AA to Figure 10 Circle ^ 〇 After continuing the process of μ · ', using CATIA software to remove the sprocket interference can be five' Description of invention (9) Computer-aided manufacturing based on this. [Technical Features] 9- 9- ^ 1. This Creation of tooth shape trimming that distinguishes specific down-link points and non-down-link points, so as to accurately grasp the chain-shaped house on the sprocket-tooth arrangement And design and use this as the basis, instead of letting the chain change randomly. Qi 2 Guangben's creation of the decision of the down-chain path, the non-linear down-chain method to determine the position of the links in the down-chain path to improve. To understand the impact of the chain sprocket on the small sprocket when the lower chain action is completed.-3. Multi-stage sprocket for various bicycle rear transmission systems, + trimming mode has been established, such as 13 teeth and 28 The trimming method of the toothed sprocket set is to remove the 2 positions of the first 4 sprocket wheels and the 2 positions of the rear 2 sprocket wheels * *, [Effect] In [Creative Background], it was mentioned that the chain was changed from a large sprocket to a small one. The irregularity of the sprocket will directly reflect the rapid rotation of the angle of the transmission substrate. That is, the key change is not smooth. Many riding spans will gradually leave the chain from the large sprocket and enter the small. In the small sprocket cogging, at this time the angle of worship of the transmission substrate, •, and the angular velocity of the base plate / #, the angular acceleration of the substrate will inevitably change suddenly.
第16頁 五、發明說明(10) 本創作在以CATIA軟体產生CNC碼後以銑床加工出原型 品後進行實驗,用ENCODER量取鏈條由大鏈輪換至小鏈輪 過轾中變速器基板轉角f相對於鏈輪組轉角的關係,I 對f進行差分處理’得到如圖十二的〆,屯,對應 鏈輪組轉角 < 的關係。- - - 從量測結果中可以看出,曲線平順了許多,確實解決 了下鏈不漏的問題》 — - . 、 [圖示說明]上 圖〆:下鏈動作的示意圖 圖二 ··下鏈齒的示意囷 - (a) 非下鏈齒控制 (b) 下鏈齒的控制 * > 圖三:控制下鍵點齒尖修整關鍵鏈節的示意圖Λ (a)上視圓 (b)前視圖 圓四:下鏈動作發生時鏈節的側偏初始位置的示意圓 圖玉:下鏈齒气,尖的示意圖 .> (a) 非下鏈齒的齒尖修整 (b) 下_鏈齒的齒尖修整 圖六:大鏈輪的齒尖經修整後,其下鏈點及非Page 16 V. Description of the invention (10) After the CNC code was generated by CATIA software, the prototype was processed by a milling machine and the experiment was performed. The chain was changed from large sprocket to small sprocket through ENCODER. Relative to the relationship of the rotation angle of the sprocket group, I performs a differential processing on f to obtain the relationship between the rotation angle < ---From the measurement results, it can be seen that the curve is much smoother, and it does solve the problem of not leaking down the chain. "—-." [Illustration] Above picture 〆: Schematic diagram of the action of the down chain. Schematic diagram of the sprocket 囷-(a) Non-downlink control (b) Control of the underlink * * Figure 3: Schematic diagram of the key link for controlling the trimming of the keypoint of the lower key point Λ (a) Top view circle (b) Front view circle four: Schematic circle diagram of the initial position of the sideways of the chain link when the chain action occurs. Jade: Schematic diagram of chain tooth gas, sharpness. ≫ (a) Non-chain gear tooth trimming (b) _ Gear tip trimming Figure 6: After the tooth tip of a large sprocket is trimmed, its lower chain point and
第17頁 f、發明說明(11) I 下鏈點的齒尖立體圖 圖七:非直線形下鏈路徑的示意圖 圖八:換鏈時鏈條偏擺的示意圖 (a) 換鏈時鏈條偏擺的鏈節間位置關係 (b) 鏈條偏擺遇非下鏈齒時的鏈節間位 , 置關係 —— * (c) 換鏈前鏈節未偏擺的鏈節間位置關 係 , 〆 α : —圖九:大、小鍵輪的相位決定示意圖' -圖十:完成之下_鏈齒形的示意圖 圖十一:圖十之側視圖及關鍵齒剖面圖 圖十二:本創作成效之Θ,^/#,’ βέΤ/β 與ξ的量測對應關係示 意圖 [符號說明] ,, 圖二:1.偏離量 2.偏離方1¾ 圖三:1.鏈輪 2.導鏈導輪 3.關鍵鍵節(critical chain,c«) 圖四:1.鏈輪接觸點(V,) 21.非下鏈點(A,). 3.關鍵鏈赞(critical chair, ) 圖五:31.=僅存厚度(〆,) 32.齒頂僅存厚度(广,) 41.非下鏈齒尖削除(L ,),Page 17 f. Description of the invention (11) I Perspective view of the tooth tip of the lower chain point Figure VII: Schematic diagram of a non-linear chain path Figure VIII: Schematic diagram of chain deflection during chain change (a) Chain deflection during chain change Positional relationship between links (b) Interlinkage position of the chain when the chain deflection meets the non-lower teeth, * * (c) Positional relationship of the chain link without deflection before the chain change, 〆α:- Figure 9: Schematic diagram of the phase determination of large and small key wheels'-Figure 10: Schematic diagram of sprocket shape after completion Figure 11: Side view of Figure 10 and section view of key teeth Figure 12: Θ of the effectiveness of this creation, ^ / # , 'Schematic diagram of the measurement correspondence relationship between βέΤ / β and ξ [Symbol description] ,, Figure 2: 1. Offset 2. Offset 1¾ Figure 3: 1. Sprocket 2. Guide chain 3. Key Key link (critical chain, c «) Figure 4: 1. Sprocket contact point (V,) 21. Non-downlink point (A,). 3. Critical chair, (critical chair,) Figure 5: 31. = only Existing thickness (〆,) 32. Existing tooth top thickness (wide,) 41. Non-chain tooth tip removal (L,),
第18頁 % 五'發明說明(12) 42.非下鏈齒尖削除(z„2) 4. A-A之載面 5. A’ -A’之截面 圓六:1.修整後下鏈點齒尖 : 2·修整後非下鏈·點的齒尖 圖八:1.大鏈輪 2 ·小鏈輪 3.鏈輪組旋轉前進方向二 -;導鏈導輪牵引鏈%方向 圖Η— : 1 ·大鍵輪 2.小鍵輪 Λ 1. 一種自行.車後變速系統之多段鏈輪組裝置,其至少 包含一個大鏈輪及一個小鏈輪,本新構形之作用為使鏈條· 由大鏈輪換至小鍵輪(下鏈動作)時能夠平嘁》進行,其特徵 係對大鍵輪之齒尖予以適當修整,控制大鏈輪之下鏈位置 及2下鍵位置’並在下鏈位置指定適當的鏠條換掛路徑, 德 f定大、小鏈輪之相位,削除大、小鏈輪上與鏈條的干涉 部分。 2·^請專利範圍第1項所葬之自行車,後變速系統 輪組[,其特徵為對夺鏈輪^齒形進行修整,區分大鏈 輪上的特定下鏈點及非令鏈點以免除下鏈動作的不預期現 象,路徑設計·、相角排定並以此為依據,使得換鏈不再隨 五、發明說明(13) 機進行;非下鏈點的設定,其特徵為在鏈條意欲偏擺出大 鏈輪時’使鏈節邊板因背面(背對小鏈輪之面)鏈輪齒尖的 修整不跨出鏈輪齒尖,延遲下鏈動作,直至鸽條抵達下鏈 ►點時,鏈節邊板因正面(面對小鏈輪之面)鏈輪齒尖的修整 跨出鏈輪齒尖,方進行下鏈動作。 _3·如申請範圍項所述之自行皁嘥變速系 統_輪組,其特徵為經電腦輔助計 算後採取合宜之下鏈路徑,決定下鍵.動作. 發生時鏈條由大鏈輪換至小鏈輪的鏈節間 ‘位置關係; - 下鏈動作之得以完成係因内鏠節與外鏈節 間的間f隶在導鏈導輪牽引下將偏擺,利用 這樣的特性,經電腦計算後可以決定整個 換鏈路徑的鏈節數目,進而決定鏈條由大 鏈輪換至小鍵輪的下鏈路徑; 鏈條從大鍵輪換至小鏈輪的下鍵路徑之第 一個鏠節(脫離鏈節),其始端滚子位於 大鏈輪之齒槽内,下鏈路徑的最後一個鏈 / 節(完成鍵節)為抵達小鏈輪的鏈節,k 端末滚子位於小鏈輪之齒槽内Γ介於脫離 鍵鋒及完成健節間(過渡鏈節)的鏈節各Page 18% Five 'invention description (12) 42. Non-chain tooth tip cutting (z „2) 4. AA load surface 5. A'-A' cross section circle 6: 1. Chain point tooth after trimming Tips: 2 · Non-down chain · point tooth tips after trimming Figure 8: 1. Large sprocket 2 · Small sprocket 3. Sprocket group rotation forward direction 2-; guide chain guide traction chain% direction diagram Η —: 1 · Large key wheel 2. Small key wheel Λ 1. A multi-stage sprocket device of a self-driving rear-vehicle transmission system, which includes at least one large sprocket and one small sprocket. The new configuration functions to make the chain · When changing from a large sprocket to a small keywheel (lower chain action), it can be performed smoothly. Its characteristics are to properly trim the tooth tips of the large keywheel to control the lower chain position of the large sprocket and the two lower key positions. The chain position specifies the proper reel-to-hang path, and determines the phase of the large and small sprocket wheels, and removes the interference between the large and small sprocket wheels and the chain. 2. Please request the bicycle buried in item 1 of the patent scope, after Transmission system wheel set [, which is characterized by trimming the tooth shape of the sprocket ^, distinguishing specific lowering points on the large sprocket and non-ordering points to avoid the unexpected occurrence of the lowering action The design of the path, the arrangement of the phase angle and the basis of this, so that the chain change is no longer carried out with the fifth and the invention (13) machine; the setting of the non-downlink point is characterized by the intention of the large chain on the chain When the wheel is rounded, the side edge of the chain link is not trimmed out of the sprocket tooth tip due to the back side (the side facing away from the small sprocket), and the lowering action is delayed until the pigeon reaches the lower chain ► point, the chain link Due to the trimming of the sprocket tooth tip on the front side (the side facing the small sprocket), the side plate moves out of the sprocket tooth tip to perform the lower chain action. It is characterized by adopting a suitable down-chain path after computer-aided calculation to determine the down-key. Action. When the chain is changed, the position relationship between the links of the large chain wheel to the small chain wheel is determined; The link f between the knuckle and the outer chain link will be deflected under the traction of the chain guide pulley. Using this characteristic, the number of links in the entire chain change path can be determined after computer calculation, and then the chain is changed from a large chain wheel to The lower chain path of the small key wheel; the chain is switched from the large key wheel to the small key wheel. The first link (off the chain link), the starting roller is located in the cogging of the large sprocket, the last chain / link (finish key link) of the lower chain path is the link that reaches the small sprocket, k end The roller is located in the cogging of the small sprocket. Γ is located between the disengagement of the key front and the complete link (transition link).
第20頁 五、發明說明(14) 有一定的相對折角% ,叹為第i鍵轧相對钤 i -1鍵節的折角,%卢〇 且過渡鍵節的滚 子十心至鏈輪組中心的距離長度必介於大 鏈餘.及小鏈輪的半徑長度之幼· 4. # #言豪&琴!^1項戶斤述&自行+ @ &系、 統輪組^,其特徵為大、小鏈輪的 相角由鏈條之脫離鏈節始端滾子在大鸽 輪齒槽-的位置至鏈條抵達_小鏈輪的鏈節末 .端Μ子位置決定。 π · 5·如申請ί^Ι]範圍I項所述之自行車後變速系 統輪組1¾,箕特徵多將内、外鏈節… 依其在下鏈路徑中的位置排列,將其與 大、小鏈輪的-齒側干涉部分進行削除,形 成大鏈輪齒側的袋型凹槽。癀 6.如上述申請專利範圍第1項至第5項V·;其特徵招始 為大、小鏈輪的齒尖及側面修整將使鏈•條 由大鏈輪換至小鏈輪藉由指定路徑進行, 避除了.換鏈的不順暢現象》Page 20 V. Description of the invention (14) There is a certain relative angle of inclination%, which is the angle of the i-th key rolling relative to the 钤 i -1 key joint,% Lu 0 and the roller of the transition key joint is ten to the center of the sprocket group The distance must be between the length of the large chain and the radius of the small sprocket. 4. ## 言 豪 & 琴! ^ 1 户户 告 述 & ++ @ & 系, 轮 轮 组 ^ , It is characterized in that the phase angle of the large and small sprocket wheels is determined by the position of the chain from the position where the rollers are separated from the beginning of the chain link to the cogging of the large pigeon wheel until the chain reaches _ the end of the small chain wheel. π · 5 · As described in the scope of the application, the bicycle rear shifting system wheel set 1¾ described in item I of the application, most of the features are the inner and outer links ... arranged according to their position in the lower chain path. The -tooth side interference part of the sprocket is cut to form a pocket-shaped groove on the tooth side of the large sprocket.癀 6. As mentioned above in the scope of application for patents No. 1 to No. 5; its characteristic is that the trimming of the tooth tips and sides of large and small sprocket wheels will change the chain from large sprocket to small sprocket by specifying Path, to avoid. Unsmooth phenomenon of chain change "
y. 21 ay. 21 a
第22頁 五、發明說明(16) 惻儡方_ 惻偏爱Page 22 V. Description of Invention (16) 恻 儡 方 _ 恻 Partial
YY
-X z- A-A (a)非下鏈齒 圖 第23頁 惻備置 1 Z- A-A <b)下鏈點 X 五、發明說明(17)-X z- A-A (a) Non-downlink teeth Figure Page 23 恻 Provisioning 1 Z- A-A < b) Downlink point X V. Description of the invention (17)
A. TopA. Top
圖 三Figure Three
第24頁 五、發明說明(18)Page 24 V. Description of the invention (18)
YY
IliBlil 第25頁 五、發明說明(19)IliBlil Page 25 V. Description of the Invention (19)
XX
/ (a)非下鏈齒尖 (b)下鏈齒尖/ (a) Non-chain tooth tip (b) Chain tooth tip
第27頁Page 27
第28頁 五、發明說明(22)Page 28 V. Description of the invention (22)
五、發明說明(23)V. Description of Invention (23)
第32頁Page 32
五、發明說明V. Description of the invention
393414 -50 〇 50 100 150 200 250 300 350 400 450 500 後浼耠&轉角(ξ) i l ) ο ο ο ο·0··0··0· 一 0Ρ/Θ3"^ίψ^^^393414 -50 〇 50 100 150 200 250 300 350 400 450 500 Houyi & corner (ξ) i l) ο ο ο ο · 0 ·· 0 ·· 0 · 一 0Ρ / Θ3 " ^ ίψ ^^^
cr ο. 5 ο 5 *0· ο .I i i i ! ί Ml*!! ! ! ? ! ! i I i ί ί ! M ! ! 1 I 'i i Λ \ ί ! I "! i i i i ! Ί 1 ! -! ™τ i i 1 111 ! ! M ! i ! i i i • " 1' · * ·| · * · Γ · * 1 I ·'11 · · ' 1 •50 0 50 100 150 200 250 300 350 400 450 500. 圖 十二 後飛耠组轉‘戽(ξ^cr ο. 5 ο 5 * 0 · ο .I iii! ί Ml * !!!!?!! i I i ί ί! M!! 1 I 'ii Λ \ ί! I "! iiii! Ί 1! -! ™ τ ii 1 111!! M! I! Iii • " 1 '· * · | · * · Γ · * 1 I · '11 · ·' 1 • 50 0 50 100 150 200 250 300 350 400 450 500. Fig. 12 Hou Fei group turns to '戽 (ξ ^
第33頁Page 33
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW84105020A TW393414B (en) | 1995-05-19 | 1995-05-19 | Sprocket shape of bike's derailleur system |
Applications Claiming Priority (1)
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TW84105020A TW393414B (en) | 1995-05-19 | 1995-05-19 | Sprocket shape of bike's derailleur system |
Publications (1)
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TW393414B true TW393414B (en) | 2000-06-11 |
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TW84105020A TW393414B (en) | 1995-05-19 | 1995-05-19 | Sprocket shape of bike's derailleur system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI477421B (en) * | 2008-07-03 | 2015-03-21 | Sram De Gmbh | Used for multi-sprocket wheels |
CN112455597A (en) * | 2018-05-24 | 2021-03-09 | 株式会社岛野 | Bicycle chain wheel |
-
1995
- 1995-05-19 TW TW84105020A patent/TW393414B/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI477421B (en) * | 2008-07-03 | 2015-03-21 | Sram De Gmbh | Used for multi-sprocket wheels |
CN112455597A (en) * | 2018-05-24 | 2021-03-09 | 株式会社岛野 | Bicycle chain wheel |
CN112455597B (en) * | 2018-05-24 | 2021-11-05 | 株式会社岛野 | Bicycle chain wheel |
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