TW386961B - Internal speed-shifting hub for bicycle - Google Patents

Description

A7 —B7 五、發明説明（1 ) 【發明所屬之技術領域】 本發明係關於自行車用輪轂，具體而言，是有關於能 夠安裝在自行車骨架上，並將來自輸入體的動力以經過選 擇後的指定的變速比傳遞到輸出體的自行車用內裝型變速 輪轂。 【傳統的技術】 自行車特別是被稱爲都會車之類的輕便車，因爲價格 便宜而且乘騎舒適所以被廣泛用於上下班及上下學。眾所 周知，爲了能在平地上高速行駛或在上坡時減少用力，這 種輕便車的後輪裝有內裝型變速輪轂。 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 內裝型變速輪轂一般具有：固定在自行車骨架上的輪 轂軸、可在輪轂軸外周自由旋轉的輪轂殼體、收容在輪轂 殼體內的行星齒輪機構、用於選擇經由行星齒輪機構的多 個驅動傳遞路徑的離合器機構、用於使離合器機構移動的 雙臂曲柄。離合器機構具有：可在軸方向移動之用來切換 驅動傳遞路徑的離合器構件、按壓該離合器構件的推桿。 雙臂曲柄爲了進行變速操作，例如係經由安裝在車把上的 變速控制桿與變速纜線而連結在一起。 這種內裝型變速輪轂係以變速控制桿來捲取牽引變速 纜線的內纜線，並利用雙臂曲柄來按壓推桿，使離合器構 件朝向軸方向的其中一側移動，而進行例如：從高速段朝 向低速·段的變速操作。但是，即使放鬆了內纜線，也不能 僅利用推桿就使離合器構件朝向另一側移動。因此，利用 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐) ΓΓΙ 經濟部中央標準局員工消費合作社印製 A7 ___B7_ 五、發明説明（2 ) 復位彈簧的彈推力量使離合器構件朝向軸方向的另一側移 動，例如進行從低速段向高速段的變速操作。 【發明所欲解決的課題】 前述傳統的內裝型變速輪轂，於行駛中，當踏著腳踏 板作用較大的驅動力時，將會在離合器構件與行星齒輪機 構的構成構件之間產生很大的阻力。亦即，當作用驅動力 時，離合器構件與行星齒輪機構的構成構件之間卡合部分 的摩擦力增大，很難利用離合器構件的移動來進行變速操 作。 爲了防止這個問題，在牽引內纜線以推桿按壓離合器 構件時，必須要用大於摩擦力的力來推壓離合器構件，所 以用以捲取內纜線所需的力量增大。而且，在利用復位彈 簧放鬆內纜線而使離合器構件返回時，必須要使復位彈簧 的彈簧力大於摩擦力。但是，如果使復位彈簧的彈簧力增 大，則在按壓推桿時，必須要用比該彈簧力更大的力來進 行按壓，因而用變速控制桿捲取內纜線時的力進一步增大 〇 因此，無論是朝向哪一個方向進行變速操作時，當在 於行駛中，作用有驅動力的狀態下進行變速操作時，操作 變速控制桿都要用很大的力。基於這種原因，內裝型變速 輪轂，於自行車行駛中，在踏著腳踏板作用驅動力的狀態 下，僅用輕微的操作力是很難進行變速操作。 本發明的課題是：針對於內裝型變速輪轂，即使在行 -----Ή—ΙΊΤ®^.-- (請先閲讀背面之注意事項再填寫本頁) 、訂------Q. 本紙張尺度適用中國國家標準（CNS > Α4規格（210X297公釐） -5- A7 ____ B7 五、發明説明（3 ) 駿中，作用驅動力時，也能夠只用輕微的擇作力來進行兩 個方向的變速操作。 【用以解決課題之手段】 — 本案之第一發明的自行車用內裝型變速輪轂是能夠安 裝在自行車骨架上，並將來自輸入體的動力以經選擇後的 預定變速比傳遞到輸出體的自行車用內裝型變速輪轂，該 輪轂具有：輪轂軸、驅動體、筒狀的從動體、行星齒輪機 構、第1單向離合器、第2以及第3單向離合器、筒狀的 離合器構件、離合器操作部。輪轂軸是能夠固定在骨架上 的軸。驅動體是能夠繞著輪轂軸外周旋轉並能與輸入體連 結。.從動體在內部具有收容空間，而且能夠繞著輪轂軸外 周旋轉，並能與輸出體連結。行星齒輪機構配置在從動體 的收容空間內，並且具有：與輪轂軸同一圓心配置的恆星 齒輪、與恆星齒輪嚙合的行星齒輪、可自由旋轉地支撐行 星齒輪並繞著輪轂軸能夠旋轉的齒輪環架、能夠繞著輪轂 軸旋轉而且與行星齒輪在外側嚙合的環齒輪，行星齒輪機 構把來自驅動體的動力傳遞到從動體。第1單向離合器配 置在環齒輪與從動體之間，僅能朝單一方向傳遞動力，而A7 —B7 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a bicycle wheel hub, and more specifically, it relates to being able to be mounted on a bicycle frame and selecting the power from the input body after selection. The bicycle's built-in gear hub with the specified gear ratio transferred to the output body. [Traditional technology] Bicycles, especially light vehicles such as metropolises, are widely used for commuting and commuting because they are cheap and comfortable to ride. It is well known that in order to reduce the effort when driving at high speed on flat ground or when going uphill, the rear wheels of this kind of light vehicles are equipped with built-in shifting hubs. Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). The built-in transmission hub generally has: a hub shaft fixed to the bicycle frame, and a hub shell that can rotate freely on the periphery of the hub shaft A body, a planetary gear mechanism housed in a hub housing, a clutch mechanism for selecting a plurality of drive transmission paths via the planetary gear mechanism, and a dual-arm crank for moving the clutch mechanism. The clutch mechanism includes a clutch member that is movable in the axial direction for switching a drive transmission path, and a pusher that presses the clutch member. The dual-arm crank is connected to a shift cable via a shift lever attached to a handlebar for shifting operation, for example. This built-in transmission hub uses a transmission control lever to take up the inner cable of the traction transmission cable, and uses a dual-arm crank to press the push rod to move the clutch member toward one side of the shaft direction, for example: Variable speed operation from high speed section to low speed section. However, even if the inner cable is loosened, the clutch member cannot be moved toward the other side using only the push rod. Therefore, use this paper size to apply the Chinese National Standard (CNS) A4 specification (210X297 mm) ΓΓΙ Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 ___B7_ V. Description of the invention (2) The spring force of the return spring makes the clutch member face The other side moves in the axial direction, for example, to perform a speed change operation from a low speed section to a high speed section. [Problems to be Solved by the Invention] The aforementioned conventional built-in type shifting hub will generate a large driving force on the pedal during driving, which will be generated between the clutch member and the constituent members of the planetary gear mechanism. Great resistance. That is, when the driving force is applied, the frictional force of the engaging portion between the clutch member and the constituent members of the planetary gear mechanism increases, making it difficult to perform the shifting operation by using the movement of the clutch member. To prevent this problem, when the inner cable is pulled by the push rod to press the clutch member, it is necessary to press the clutch member with a force larger than the frictional force, so the force required to wind the inner cable is increased. Furthermore, when the inner cable is loosened by the return spring and the clutch member is returned, the spring force of the return spring must be greater than the friction force. However, if the spring force of the return spring is increased, when the push rod is pressed, it must be pressed with a force greater than the spring force. Therefore, the force when the inner cable is wound by the shift lever is further increased. Therefore, no matter which direction the shifting operation is performed, when the shifting operation is performed while the driving force is applied during driving, a great force is required to operate the shifting lever. For this reason, the built-in shifting hub is difficult to perform shifting operation with only a slight operating force when the driving force is exerted on the pedal when the bicycle is running. The subject of the present invention is: for the built-in type speed-changing wheel hub, even if it is in line -------- Ή—ΙΊΤ® ^ .-- (please read the precautions on the back before filling this page), order ----- -Q. This paper size applies the Chinese national standard (CNS > A4 size (210X297mm) -5- A7 ____ B7 V. Description of the invention (3) Junzhong, when driving force is applied, can only use slight selection [The solution to the problem] — The built-in type shift hub for a bicycle according to the first invention of the present case can be mounted on a bicycle frame, and the power from the input body can be selected. The built-in bicycle speed-changing hub for a bicycle having a predetermined transmission ratio transmitted thereon includes a hub shaft, a driving body, a cylindrical driven body, a planetary gear mechanism, a first one-way clutch, second and third One-way clutch, cylindrical clutch member, clutch operating part. The hub shaft is a shaft that can be fixed to the skeleton. The driving body can rotate around the outer periphery of the hub shaft and can be connected to the input body. The driven body has a storage inside Space and can It rotates around the outer periphery of the hub shaft and can be connected to the output body. The planetary gear mechanism is arranged in the receiving space of the driven body and has a sun gear arranged at the same center as the hub shaft, a planetary gear meshing with the sun gear, and can rotate freely A planetary gear mechanism that supports the planetary gear and rotates around the hub shaft, and a ring gear that can rotate around the hub shaft and mesh with the planet gear on the outside, the planetary gear mechanism transmits the power from the driving body to the driven body. The one-way clutch is arranged between the ring gear and the driven body, and can only transmit power in one direction.

J 且在能夠傳遞動力的狀態中，可以雄行動力傳遞狀態與動 力斷開狀態的切換。在驅動體與環齒輪之間以及在齒輪環 架與從動體之間分別配置第2以及第3單向離合器，僅朝 單一方向傳遞動力。離合器構件設置在輪轂軸上並可自由 轉動，而且在軸方向可以自由移動，藉由在軸方向的移動 (請先閲讀背面之注意事項再填寫本頁)J And in a state capable of transmitting power, it is possible to switch between the aggression state and the power off state. The second and third one-way clutches are arranged between the driving body and the ring gear and between the gear ring frame and the driven body, respectively, and the power is transmitted in only one direction. The clutch member is set on the hub shaft and can rotate freely, and can move freely in the direction of the shaft, by moving in the direction of the shaft (please read the precautions on the back before filling this page)

訂 經濟部中央標隼局貝工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（21〇X297公釐） -6- A7 B7 五、發明説明（4 ) ，進行驅動體與齒輪環架的連結狀態與脫離狀態的切換， 而且，對第1單向離合器進行傳遞動力狀態與動力斷開狀 態的切換。離合器操作部使離合器構件在軸方向移動，而 且與離合器構件卡合，可以將離合器構件的旋轉驅動力轉 換爲在軸方向的位移。 這種內裝型變速輪轂，是利用離合器操作部將驅動體 與齒輪環架變成脫離狀態，而且將離合器構件配置在使第 1單向離合器位於動力隔斷狀態的減速位置處，而使得輸 入體朝單一方向旋轉時，其旋轉經由驅動體、第2單向離 合器傳遞到環齒輪，進而藉由行星齒輪機構從齒輪環架（ 環齒輪的齒數）/(恆星齒輪的齒數+環齒輪的齒數）減 速後輸出。然後，該減速後的旋轉再藉由第3單向離合器 從齒輪環架傳遞到從動體，輸出體朝單一方向減速旋轉。 經濟部中央標準局員工消費合作社印製 (請先閱讀背面之注意事項再填寫本頁) 而且，藉由離合器操作部將驅動體與齒輪環架變成脫 離狀態，且將離合器構件配置在使第1單向離合器位於動 力傳遞狀態的直結位置處，並使輸入體朝單一方向旋轉時 ，旋轉係藉由驅動體、第2單向離合器傳遞到環齒輪，進 而藉由第1單向離合器將驅動體的旋轉直接傳遞到從動體 ，輸出體朝單一方向以相同的轉速旋轉。 而且’藉由離合器操作部將驅動體與齒輪環架變成連 結狀態，而且將離合器構件配置在使第1單向離合器位於 動力傳遞狀態的增速位置處，並使輸入體朝單一方向旋轉 時’該旋轉經由驅動體、離合器構件傳遞到環齒輪，進而 藉由行星齒輪機構從環齒輪（恆星齒輪的齒數+環齒輪的 本紙張又度適用中國國家標準（CNS ) A4規格（21 Ox297公釐) y kl ________B7 五、發明説明（5 ) 齒數）/ (環齒輪的齒數）增速輸出。而後，該增速的旋 轉經由第1單向離合器從環齒輪傳遞到從動體，而輸出體 朝單一方向增速旋轉。 經濟部中央標準局員工消費合作社印製 此處’令離合器構件從減速位置經由直結位置移動至 增速位置時，即使旋轉傳遞到離合器構件，也會因爲離合 器構件僅空轉而不傳遞旋轉力，所以在該方向使離合器構 件移動所需的力可以小些。另外，令離合器構件從增速位 置朝向直結位置移動時，由於離合器構件與齒輪環架的摩 擦，離合器構件難以從齒輪環架脫離，在令離合器構件從 直結位置朝向減速位置移動時，因爲用來連結環齒輪與輪 轂殼體的第1單向離合器係處於作用驅動力的狀態，所以 難以變成動力切斷狀態。但是，當離合器操作部與離合器 構件卡合時，離合器構件的旋轉驅動力被轉換爲朝向軸方 向的位移，產生輔助力，利用自行車的旋轉驅動力可促使 離合器構件在軸方向更容易移動。因此，可使離合器構件 從增速位置朝向減速位置移動所需的力量變小，因此，行 駛中即使作用驅動力，也能夠只利用輕微的操作力就可進 行兩個方向的變速操作。 本案之第二發明的自行車用內裝型變速輪轂針對第一 發明所述的輪轂，其中的離合器操作部具有設在輪轂軸 上的導引面、藉由沿著導引面移動而使離合器構件在軸方 向移動的變速鍵、按壓變速鍵的按壓構件，離合器構件具 有能與變速鍵抵接而且對輪轂軸的軸芯呈傾斜的凸輪面， 當變速鍵與該凸輪面抵接時，藉由單一方向的旋轉而可以 -8 - (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS > A4規格（210X297公釐） 經濟部中央標準局員工消費合作杜印製 A7 B7 五、發明説明（6 ) 將旋轉驅動力轉換爲軸方向的位移。 此處，當變速鍵與離合器構件的凸輪面抵接時，變速 鍵由於離合器構件之朝單—方向的旋轉而上到凸輪面，旋 轉驅動力被轉換爲離合器構件的軸方向的位移。因此，能 夠用很簡單的結構就將旋轉驅動力轉換爲軸方向的位移。 本案之第三發明的自行車用內裝型變速輪轂是針對第 二發明所述的輪轂，其中是在輪轂軸上形成有貫通輪轂軸 的軸芯，且形成有朝向與其中一方向相反側扭轉成螺旋狀 的貫通槽，導引面是形成貫通槽面的一部分，而且導引面 相對輪轂軸的軸芯傾斜預定的槽傾斜角度。 這種情況，因爲貫通槽的導引面相對軸芯傾斜，並朝 與其中一方向相反側扭轉成螺旋狀，所以，當離合器構件 一邊朝單一方向旋轉，變速鍵一邊上到凸輪面時，變速鍵 在與導引面接觸部分的整個長度就被凸輪面朝向導引面一 側按壓，因離合器構件而使得變速鍵很難在軸方向脫開。 而且，當作用非常大的驅動力時，因爲不是離合器構件而 是變速鍵動作部在軸方向脫開，所以，在驅動力非常大的 狀態下，將不會進行變速，變速衝擊可減少，而且能夠防 止因驅動力所引起的內部動力傳遞機構部分的損壞。 本案之第四發明的自行車用內裝型變速輪轂是針對第 三發明所述的輪轂，其中槽傾斜角度是從1 〇度至5 0度 的範圍。如果槽傾斜角度不足1 〇度，則當變速鍵被按壓 在凸輪面上時，變速鍵容易在軸方向脫離。而且，如果超 過5 0度’則在用按壓構件按壓變速鍵時阻力增大，會增 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） _9_ ^^1 ^^^1 ^^^1 an^\ln m· n^— ^^^1 ι^ϋ— ^—^1 一WJ (請先閱讀背面之注意事項再填寫本頁) A7 B7 五、發明説明（7 ) [ ，會增加變速操作時的操作力。 本案之第五發明的自行車用內裝型變速輪轂是針對第 三或第四發明所述的輪轂，其中離合器構件的凸輪面相對 輪轂軸芯的傾斜角度係較之槽傾斜角度大，而且是從2 〇 度至7 0度的範圍。使凸輪面的傾斜角度較之槽傾斜角度 大是因爲在變速鍵與離合器構件抵接時，變速鍵實際移動 的導引面的角度比凸輪面小’所以變速鍵能夠在離開凸輪 面的方向移動。而且’若傾斜角度不夠2 0度則傾斜過大 ，不能高效率地將旋轉驅動力轉換爲軸方向的位移，如果 傾斜角度超過7 0度則傾斜過小，不能獲得充分的軸方向 位移’即使將旋轉驅動力轉換爲軸方向的位移，離合器構 件也難以從齒輪環架脫離，而且，很難把第1單向離合器 從動力傳遞狀態轉至動力切斷狀態。 經濟部中央標準局員工消費合作社印製 本案之第六發明的自行車用內裝型變速輪轂是針對第 四或第五發明所述的輪轂，其中變速鍵的斷面爲三角形狀 ’係被配置在貫通槽內，其長度方向係與輪轂軸呈交叉地 延伸。這種情況，利用簡單形狀的變速鍵而能夠在呈扭轉 的貫通槽內移動，而且在貫通槽內由於摩擦力而限制過大 的移動。亦即，當變速鍵的三角形的一面與凸輪面抵接時 ，被凸輪面按壓，而另一面與導引面接觸，變速鍵由於摩 擦力的作用，很難朝軸方向移動。而且，在被按壓構件移 動中，因爲僅有一面接觸而另一面不接觸，所以移動中的 阻力小。 本案之第七發明的自行車用內裝型變速輪轂是針對第 -10- (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐〉 ΑΊ ____^_Β7_ 五、發明説明（8 ) 二至第六發明中的任一種發明所述的輪轂，其中又具備第 1彈推構件、第2彈推構件和第3彈推構件；第1彈推構 件是用於對離合器構件朝向齒輪環架側施加彈推力量，第 2彈推構件是對變速鍵朝向離合器構件側施加彈推力量， 桌_3彈推構件安裝在變速鍵與離合器構件之間，而且當兩 個構件抵接時，在變速鍵與離合器構件抵接之前，藉由第 3彈推構件的彈性力對兩個構件在互相分開方向上施加彈 推力量。 經濟部中央標準局員工消費合作社印製 (讀先閱讀背面之注意事項再填寫本良) 此處，因爲藉由第1彈推構件對離合器構件朝向齒輪 環架側施加彈推力量，所以離合器構件朝向增速側移動中 將離合器構件與齒輪環架連結時，即使南個構件未在連結 位置的情況，亦可利用離合器構件的而能夠確實地將兩個 構件連結。而且，因爲藉由第2彈推構件將變速鍵朝向離 合器構件側施加彈推力量，所以，在離合器構件朝向減速 側移動時，能夠確實地使離合器構件朝向減速側移動。而 且，因爲藉由第3彈推構件在變速鍵與離合器構件互相分 開的方向上施加彈推力量，所以在朝向減速側變速中，即 使變速鍵與凸輪面抵接並且離合器構件從齒輪環架脫離時 ，變速鍵也能從凸輪面離開。因此，行駛中凸輪面與變速 鍵不抵接，不會發生抵接的聲音。 本案之第八發明的自行車用內裝型變速輪轂是針對第 七發明所述的輪轂，其中第3彈推構件是全長被限定爲一 定長度的螺旋彈簧。這種情況，可以設定變速鍵與離合器 構件抵接時的彈推力量。這樣，在脫離阻力不大時，變速 本&張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） _ ” . ' 經濟部中央標準局員工消費合作社印製 A7 ____B7 _ 五、發明説明（9 ) 鍵與離合器構件的間隔爲該彈推構件的設定長度，能夠更 準確地進行離合器構件的定位》 本案之第九發明的自行車用內裝型變速輪轂是針對第 七或第八發明所述的輪轂，其中按壓構件係將變速鍵朝向 齒輪環架側按壓。這種情況，在沒有按壓變速鍵的狀態下 ’離合器構件係配置在減速位置，隨著按壓而從直結位置 移動至增速位置。 本案之第十發明的自行車用內裝型變速輪轂是針對第 - -： 九發明所述的輪轂，其中按壓構件是桿.狀:搆件，而三個彈 推構件的各自的彈推力量是按照第2彈推構件、第3彈推 構件、第1彈推構件的順序變弱。這種情況，當使按壓構 件在朝向與按壓側相反側後退時，因爲第2彈推構件的彈 推力量比其它的彈推構件大，所以，可以藉由第2彈推構 件使離合器構件移動。而且，因爲第3彈推構件的彈推力 量比第1彈推構件大，所以，藉由按壓構件按壓變速鍵並 藉由第1彈推構件使離合器構件朝向增速側移動時，變速 鍵很難與離合器抵接。 本案之第十一發明的自行車用內裝型變速輪轂是針對 第九發明所述的輪轂，其中按壓構件具有：具有預定長度 的桿狀操作體、安裝在操作體的前端並可在軸方向進行相 對移動的動作體、安裝在操作體與動作體之間並對兩個構 件朝向互相分開方向施加彈推力量的彈推構件，變速鍵能 在軸方向上的兩個方向按壓離合器構件，彈推構件是第1 彈推構件，而三個彈推構件的各自彈推力量是按照第1彈 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公楚) .12 . (請先閱讀背面之注意事項再填寫本頁> -訂 經濟部中央標準局負工消費合作社印製 A7 B7 五、發明説明（ίο ) 推構件、第2彈推構件、第3彈推構件的順序變弱。 這種情況，利用按壓構件按壓變速鍵而使離合器構件 從減速側朝向增速側移動時，因爲第1彈推構件的彈推力 量比第2彈推構件大，所以，能夠頂住第2彈推構件的彈 推力量而將變速鍵朝向增速側移動。結果，變速鍵按壓離 合器構件而使離合器構件朝向增速側移動。而且，當使按 壓構件朝向與按壓側相對側後退時，因爲第2彈推構件的 彈推力量比第3彈推構件大，所以藉由第2彈推構件可以 使離合器構件移動。而且，因爲在按壓構件上安裝了彈推 力量最大的第1彈推構件，所以能夠使彈簧圈數加多而減 小彈簧常數。結果，能夠使其它的彈推構件的彈簧常數進 —步減小，可以減小變速操作整體的操作力。而且，因爲 第2彈推構件的彈推力量比第3彈推構件大，所以在朝向 減速側移動時，若需要輔助力量時，可以確實地使變速鍵 與離合器構件抵接。 本案之第十二發明的自行車用內裝型變速輪轂是針對 第七或第八發明所述的輪轂，其中按壓構件將變速鍵朝向 離合器構件側按壓。這種情況，在沒有按壓變速鍵的狀態 下’離合器構件係配置在增速位置，隨著按壓而從直結位 置朝向減速位置移動。 本案之第十三發明的自行車用內裝型變速輪轂是針對 第十二發明所述的輪轂，其中按壓構件具有：具有預定長 度的桿狀操作體、安裝在操作體的前端並可在軸方向上進 行相對移動的動作體、安裝在操作體與動作體之間並對兩 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (讀先閱讀背面之注意事項再填寫本頁) -----------L|_>φι---.I—tT------Q- 經濟部中央標準局員工消費合作杜印製 A7 ___B7_ 五、發明説明（11 ) 個構件朝向互相分開方向施加彈推力量的彈推構件，變速 鍵可以在軸方向上的兩個方向按壓離合器構件，彈推構件 是第2彈推構件，而三個彈推構件的各自彈推力量是按照 第2彈推構件、第3彈推構件、第1彈推構件的順序而變 弱。 這種情況，利用按壓構件按壓變速鍵並使離合器構件 從增速側朝向減速側移動時，因爲第2彈推構件的彈推力 量比第1彈推構件大，所以，能夠頂住第1彈推構件的彈 推力量而將變速鍵朝向減速側移動。結果，變速鍵按壓離 合器構件，離合器構件朝向減速側移動。而且，因爲第2 彈推構件的彈推力量比第3彈推構件大，所以在朝向減速 側移動時若需要輔助力量時，可以確實地使變速鍵與離合 器構件抵接。另外，當令按壓構件朝向與按壓側相反側後 退’而且利用第1彈推構件按壓離合器構件時，因爲第3 彈推構件的彈推力量比第1彈推構件大，所以在離合器構 件與變速鍵互相分開的狀態下，藉由第3彈推構件令離合 器構件朝向增速側移動。 【發明的實施形態】 實施形式1 〔整體結構〕 圖1是顯不採用本發明一實施形式的輕便型自行車， 該車具備：具有雙樑形的骨架體2和前叉3的骨架i、車 把4、驅動部5、前輪6、安裝了 3段變速的內裝型變速 本紙張尺度適用中國國家標準（CNS ) Α4規格（210Χ297·公釐） -14- (請先閱讀背面之注意事項再填寫本頁) ..__訂______'^___ 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（12 ) 輪轂1 0的後輪7、前刹車裝置8以及供以在手邊操作內 裝型變速輪轂1 0用的變速操作部9。 骨架1上安裝了包括：車座1 1、車把4、前輪6以 及後輪7的各個構件。 車把4具有固定在前叉3上部的車把軸桿1 4和固定 在車把軸桿1 4上的車把桿1 5。在車把桿1 5的右端安 裝有用來構成前刹車裝置8的刹車柄16和握把17以及 變速操作部9。變速操作部9安裝在剎車柄1 6內側的車 把桿1 _5上；並且利用由內纜線與外套管所組.成的變速操 作纜線7 3來與內裝型變速輪轂1 0連結。變速操作部9 具有用以捲取操作內纜線的捲取控制桿，並且具有用來解 除捲取控制桿的捲取操作並放鬆內纜線的解除控制桿，因 爲這個部分是一般常用的構造，故省略其詳細說明。 驅動部5具有：設在骨架體2的下部（五通管）的齒 輪曲柄1 8、掛在齒輪曲柄1 8上的車鏈1 9和內裝型變 速輪轂1 0。 〔內裝型變速輪轂的結構〕 內裝型變速輪轂1 0是包括減速、直結以及增速的動 力傳遞路徑共計3段構成方式的附倒踩型剎車裝置的輪轂 。如圖2所示，該內裝型變速輪轂1 〇具有：固定在自行 車骨架體2的後鉤爪2 a上的輪轂軸2 1、配置在輪轂軸 2 1—端側外周的驅動體2 2、配置在輪轂軸2 1以及驅 動體2 2外周的輪轂殻體2 3、行星齒輪機構2 4、用於 本紙張尺度適用中國國家標準（CNS ) A4说格（210 X 297公釐） -15- (請先閲讀背面之注意事項再填寫本頁)The paper size printed by the Central Bureau of Standards of the Ministry of Economic Affairs and the Pui Gong Consumer Cooperative shall be in accordance with the Chinese National Standard (CNS) A4 (21 × 297 mm)-6-A7 B7 V. Description of the invention (4), drive body and gear The ring state is switched between a connected state and a disengaged state, and the first one-way clutch is switched between a power transmission state and a power off state. The clutch operating portion moves the clutch member in the axial direction and engages with the clutch member to convert the rotational driving force of the clutch member into a displacement in the axial direction. This built-in type shift hub uses a clutch operating unit to disengage the driving body and the gear ring frame, and the clutch member is arranged at a deceleration position where the first one-way clutch is in a power-off state, so that the input body faces When rotating in one direction, its rotation is transmitted to the ring gear via the driving body and the second one-way clutch, and the planetary gear mechanism is used to reduce the speed from the gear ring carrier (the number of teeth of the ring gear) / (the number of teeth of the sun gear + the number of teeth of the ring gear). After output. Then, the decelerated rotation is transmitted from the ring gear to the driven body through the third one-way clutch, and the output body is decelerated and rotated in a single direction. Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page). The clutch operation unit is used to disengage the drive body and the gear ring frame, and the clutch member is placed in the first position. When the one-way clutch is located at the direct position of the power transmission state and the input body is rotated in one direction, the rotation is transmitted to the ring gear by the driving body and the second one-way clutch, and the driving body is further transmitted by the first one-way clutch. The rotation is directly transmitted to the driven body, and the output body rotates in the same direction at the same speed. In addition, "when the driving body and the ring gear are connected by the clutch operating portion, and the clutch member is disposed at a speed-up position where the first one-way clutch is in the power transmission state, and the input body is rotated in one direction" The rotation is transmitted to the ring gear through the driving body and the clutch member, and then the planetary gear mechanism from the ring gear (the number of teeth of the sun gear + the ring gear of this paper is again applicable to the Chinese National Standard (CNS) A4 specification (21 Ox297 mm) y kl ________B7 V. Description of the invention (5) Number of teeth) / (Number of teeth of ring gear) Increase speed output. Then, the speed-up rotation is transmitted from the ring gear to the driven body via the first one-way clutch, and the output body is speeded up in a single direction. Printed here by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. When the clutch member is moved from the deceleration position to the speed-up position via the straight-to-close position, even if the rotation is transmitted to the clutch member, the clutch member will only rotate without transmitting the rotational force. The force required to move the clutch member in this direction may be smaller. In addition, when the clutch member is moved from the speed-up position to the direct-coupled position, it is difficult for the clutch member to disengage from the gear ring-frame due to the friction between the clutch member and the gear-ring frame. Since the first one-way clutch system that connects the ring gear and the hub housing is in a state where the driving force is applied, it is difficult to be turned into a power-off state. However, when the clutch operating portion is engaged with the clutch member, the rotational driving force of the clutch member is converted into a displacement in the direction of the shaft to generate an assisting force. The rotational driving force of the bicycle can promote the clutch member to move more easily in the axial direction. Therefore, the force required to move the clutch member from the speed-up position to the speed-down position can be reduced. Therefore, even when a driving force is applied during driving, the speed change operation can be performed in both directions with only a slight operating force. The built-in type shifting hub for a bicycle according to the second aspect of the present invention is directed to the hub according to the first aspect, wherein the clutch operating portion has a guide surface provided on the hub shaft, and the clutch member is moved along the guide surface. The shift key that moves in the axial direction and the pressing member that presses the shift key. The clutch member has a cam surface that can abut the shift key and tilt the hub of the hub shaft. When the shift key abuts the cam surface, It can be rotated in a single direction-8-(Please read the notes on the back before filling in this page) This paper size applies to Chinese national standards (CNS > A4 size (210X297 mm)). Control A7 B7 V. Description of the invention (6) The rotation driving force is converted into a displacement in the axial direction. Here, when the shift key abuts on the cam surface of the clutch member, the shift key is caused by the unidirectional rotation of the clutch member. Up to the cam surface, the rotational driving force is converted into the axial displacement of the clutch member. Therefore, the rotational driving force can be converted into the axial direction with a simple structure. The built-in type shifting hub for a bicycle according to the third aspect of the present invention is directed to the hub according to the second aspect, wherein a hub is formed on the hub shaft and penetrates the hub shaft, and is formed to face a direction opposite to one of the directions The guide groove is twisted into a spiral-shaped through groove, and the guide surface forms part of the through groove surface, and the guide surface is inclined with respect to the hub of the hub shaft by a predetermined groove inclination angle. In this case, the guide surface of the through groove is opposed to the shaft core. It is inclined and twisted into a spiral shape opposite to one of the directions. Therefore, when the clutch member rotates in a single direction and the shift key reaches the cam surface, the entire length of the shift key is in contact with the cam surface. Pressing toward the guide surface side makes it difficult for the shift key to disengage in the axial direction due to the clutch member. Also, when a very large driving force is applied, the shift key operating part is disengaged in the axial direction because it is not the clutch member. Therefore, in a state where the driving force is very large, the shift will not be performed, the shift shock can be reduced, and the internal force caused by the driving force can be prevented. The power transmission mechanism is partially damaged. The bicycle built-in shifting hub according to the fourth invention of the present invention is directed to the hub according to the third invention, wherein the groove inclination angle is in a range from 10 degrees to 50 degrees. If the groove is inclined If the angle is less than 10 degrees, when the shift key is pressed on the cam surface, the shift key is easily detached in the axial direction. If it exceeds 50 degrees, the resistance increases when the shift key is pressed by the pressing member, which increases the cost. Paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) _9_ ^^ 1 ^^^ 1 ^^^ 1 an ^ \ ln m · n ^ — ^^^ 1 ι ^ ϋ— ^ — ^ 1 1 WJ (Please read the precautions on the back before filling this page) A7 B7 V. Description of the invention (7) [, will increase the operating force during shift operation. The fifth type of built-in shift hub for bicycles in this case is In the hub according to the third or fourth invention, the inclination angle of the cam surface of the clutch member with respect to the hub shaft core is larger than the inclination angle of the groove, and is in a range from 20 degrees to 70 degrees. The inclination angle of the cam surface is larger than the inclination angle of the groove because when the shift key abuts the clutch member, the angle of the guide surface that the shift key actually moves is smaller than the cam surface, so the shift key can move in a direction away from the cam surface. . And 'if the inclination angle is less than 20 degrees, the inclination is too large, and the rotational driving force cannot be efficiently converted into a displacement in the axial direction. If the inclination angle exceeds 70 degrees, the inclination is too small, and a sufficient axial displacement cannot be obtained.' The driving force is converted into a displacement in the axial direction, and it is difficult for the clutch member to disengage from the ring gear, and it is difficult to turn the first one-way clutch from the power transmission state to the power cut state. The sixth invention of the bicycle built-in gear wheel hub printed by the Employees' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs is directed to the wheel hub according to the fourth or fifth invention, wherein the cross-section of the gear shift key has a triangular shape. The longitudinal direction of the through groove extends across the hub shaft. In this case, a simple-shaped shift key can be used to move in a twisted through groove, and excessive movement is restricted in the through groove due to frictional force. That is, when one side of the triangle of the shift key abuts on the cam surface, it is pressed by the cam surface and the other side contacts the guide surface. The friction key makes it difficult for the shift key to move in the axial direction. Moreover, in the movement of the pressed member, only one side is in contact and the other side is not in contact, so the resistance during the movement is small. The seventh invention of the built-in type bicycle wheel hub for this case is for -10- (please read the precautions on the back before filling this page) This paper size is applicable to China National Standard (CNS) A4 specification (210X297 mm> ΑΊ ____ ^ _ Β7_ 5. Description of the invention (8) The hub according to any one of the second to sixth inventions, further comprising a first ejection member, a second ejection member, and a third ejection member; the first ejection member The member is used to apply a pushing force to the clutch member toward the gear ring frame side. The second pushing member is used to apply a pushing force to the shift key toward the clutch member side. The table_3 push member is installed between the shift key and the clutch member. And, when the two members abut, before the shift key and the clutch member abut, the elastic force of the third ejection member is used to exert an ejection force on the two members in a direction separated from each other by the elastic force of the third ejection member. Printed by a consumer cooperative (read the precautions on the back first and then fill in this.) Here, because the clutch member is biased toward the gear ring frame side by the first thrust member, the clutch member faces When the clutch member is connected to the gear ring while moving to the acceleration side, the clutch member can be used to reliably connect the two members even if the south member is not in the connected position. The poppet pushes the shift key toward the clutch member side, so when the clutch member moves toward the deceleration side, the clutch member can be surely moved toward the deceleration side. Moreover, the third poppet member acts on the shift key. The pushing force is applied in a direction separated from the clutch member, so that in the shift toward the deceleration side, even when the shift key abuts on the cam surface and the clutch member is disengaged from the gear ring frame, the shift key can leave the cam surface. The cam surface and the shift key are not in contact with each other during driving, and a sound of abutment does not occur. The built-in type shift hub for a bicycle according to the eighth invention of the present invention is directed to the hub according to the seventh invention, in which the third elastic member is a full length It is limited to a helical spring of a certain length. In this case, the spring force when the shift key is in contact with the clutch member can be set. In this way, when the separation resistance is not great, the speed change book & Zhang scale is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) _ ”. 'Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 ____B7 _ 5. Description of the invention (9) The interval between the key and the clutch member is the set length of the spring member, and the clutch member can be positioned more accurately. The bicycle built-in transmission hub of the ninth invention of the present invention is directed to the seventh or eighth invention. The hub described above, wherein the pressing member presses the shift key toward the gear ring frame side. In this case, the clutch member is disposed in the deceleration position when the shift key is not pressed, and moves from the straight-knot position to the speed increase with the pressing The tenth invention-built bicycle hub for a bicycle according to the tenth invention of the present invention is directed to the hub according to the ninth invention, wherein the pressing member is a lever-like: member, and each of the three elastic pushing members pushes The power is weakened in the order of the second ejection member, the third ejection member, and the first ejection member. In this case, when the pressing member is retracted toward the side opposite to the pressing side, the second pushing member has a larger pushing force than the other pushing members, so the clutch member can be moved by the second pushing member. . Furthermore, since the pushing force of the third pushing member is greater than that of the first pushing member, when the shift key is pressed by the pressing member and the clutch member is moved toward the speed increasing side by the first pushing member, the shift key is very Difficult to engage with the clutch. The eleventh invention's built-in type shifting hub for a bicycle is the hub according to the ninth invention, wherein the pressing member has a rod-shaped operating body having a predetermined length, is mounted on the front end of the operating body, and can be carried in the axial direction. Relatively moving action body, a spring push member installed between the operation body and the action body and applying spring force to the two members in a direction separated from each other, the shift key can press the clutch member in two directions in the shaft direction, and spring push The component is the first projectile component, and the respective projectile forces of the three projectile components are in accordance with the paper size of the first project. The Chinese National Standard (CNS) A4 specification (210X 297) is applicable. 12. Please read the back first Please fill in this page for the matters needing attention-> Order printed by the Central Standards Bureau of the Ministry of Economic Affairs and Consumer Cooperatives to print A7 B7 V. Description of invention (ίο) The order of the pushing member, the second pushing member, and the third pushing member is weak. In this case, when the clutch member is moved from the decelerating side to the accelerating side by pressing the shift key with the pressing member, since the pushing force of the first pushing member is greater than that of the second pushing member, it is possible to The shift key is moved toward the acceleration side while resisting the pushing force of the second ejection member. As a result, the shift key presses the clutch member to move the clutch member toward the acceleration side. Furthermore, when the pressing member is directed to the side opposite to the pressing side At the time of backward movement, the second thrust member has a larger thrust force than the third thrust member, so the clutch member can be moved by the second thrust member. Furthermore, the first thrust member having the largest thrust force is installed on the pressing member. One spring pushing member can increase the number of spring turns and reduce the spring constant. As a result, the spring constants of other spring pushing members can be further reduced and the overall operating force of the shift operation can be reduced. The pushing force of the second pushing member is greater than that of the third pushing member, so when the auxiliary force is required when moving toward the deceleration side, the shift key can be reliably brought into abutment with the clutch member. The built-in type shift hub for a bicycle is the hub according to the seventh or eighth invention, in which the pressing member presses the shift key toward the clutch member side. In this case, in When the shift key is pressed, the 'clutch member is arranged in the speed-up position, and moves from the straight-knot position to the deceleration position as it is pressed. The thirteenth invention's built-in type shift hub for a bicycle is directed to the twelfth invention. The hub described above, wherein the pressing member has a rod-shaped operating body having a predetermined length, an operating body installed at the front end of the operating body and capable of relative movement in the axial direction, installed between the operating body and the operating body, and two books Paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) (read the precautions on the back before filling this page) ----------- L | _ > φι ---. I —TT ------ Q- Consumer cooperation of the Central Standards Bureau of the Ministry of Economic Affairs, printed by A7 ___B7_ V. Description of the invention (11) Spring push members that apply spring force to separate directions. The shift key can be on the shaft. The clutch member is pressed in two directions, the ejection member is the second ejection member, and the respective ejection forces of the three ejection members are in accordance with the second ejection member, the third ejection member, and the first ejection member. The order becomes weaker. In this case, when the shift key is pressed by the pressing member and the clutch member is moved from the acceleration side to the deceleration side, since the pushing force of the second pushing member is greater than that of the first pushing member, it is possible to withstand the first bomb. The pushing force of the pushing member moves the shift key toward the deceleration side. As a result, the shift key presses the clutch member, and the clutch member moves toward the reduction side. In addition, since the pushing force of the second pushing member is greater than that of the third pushing member, if auxiliary force is required when moving toward the decelerating side, the shift key can be reliably brought into contact with the clutch member. In addition, when the pressing member is moved backward toward the side opposite to the pressing side and the clutch member is pressed by the first pushing member, the pushing force of the third pushing member is greater than that of the first pushing member, so the clutch member and the shift key In a state separated from each other, the clutch member is moved toward the acceleration side by the third ejection member. [Embodiment of the Invention] Embodiment 1 [Overall Structure] FIG. 1 shows a lightweight bicycle adopting an embodiment of the present invention. The vehicle is provided with a skeleton i having a double-beam-shaped skeleton body 2 and a front fork 3, and a vehicle. 4. The drive unit 5, the front wheel 6, and the built-in transmission with a 3-speed transmission. The paper size applies to the Chinese National Standard (CNS) A4 specification (210 × 297 · mm). -14- (Please read the precautions on the back first. (Fill in this page) ..__ Order ______ '^ ___ Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (12) Rear wheel 7 of the wheel hub 10, front brake device 8 and for handy The shift operation portion 9 for the built-in shift hub 10 is operated. Various components including a seat 11, a handlebar 4, a front wheel 6 and a rear wheel 7 are mounted on the skeleton 1. The handlebar 4 has a handlebar shaft 14 fixed to the upper part of the front fork 3, and a handlebar shaft 15 fixed to the handlebar shaft 14. At the right end of the handlebar lever 15 are mounted a brake lever 16 and a grip 17 for constituting the front brake device 8, and a shift operation section 9. The shift operating portion 9 is mounted on the handlebars 1_5 on the inner side of the brake lever 16; and is connected to the built-in shift hub 10 by a shift operation cable 7 3 composed of an inner cable and an outer tube. The shifting operation section 9 has a winding lever for winding the inner cable, and a release lever for releasing the winding operation of the winding lever and releasing the inner cable, because this part is a commonly used structure , So its detailed description is omitted. The driving unit 5 includes a gear crank 18 provided at a lower portion (a five-way pipe) of the frame body 2, a chain 19 hanging on the gear crank 18, and a built-in variable speed hub 100. [Structure of Built-in Gearshift Hub] The built-in gearshift hub 10 is a hub with a step-down brake device consisting of a three-stage power transmission path including deceleration, direct coupling, and acceleration. As shown in FIG. 2, the built-in type shifting hub 10 has a hub shaft 2 1 fixed to the rear claw 2 a of the bicycle frame body 2, and a drive body 2 disposed on the outer periphery of the hub shaft 2 1 at the end side 2. The hub housing 2 arranged on the outer periphery of the hub shaft 21 and the driving body 2 2 3. The planetary gear mechanism 2 4. For this paper size, the Chinese National Standard (CNS) A4 grid is used (210 X 297 mm) -15- (Please read the notes on the back before filling this page)

A7 _B7______ 五、發明説明（13) 選擇動力傳遞路徑的操作機構2 5、爲使操作機構2 5動 作的雙臂曲柄2 6、倒踩型刹車裝置2 7。 如圖2以及圖3所示’輪轂軸2 1是桿狀構件’其中 間部爲大直徑而兩端部爲小直徑’而且在兩端形成螺紋。 在輪穀軸2 1的軸芯部’在從圖2的右端朝向中間部形成 操作孔2 1 a。在操作孔2 1 a的底部附近形成貫通軸芯 的貫通槽2 1 b。貫通槽2 1 b係貫通輪轂軸21的軸芯 ，而且相對軸芯傾斜預定的槽傾斜角度泠（參照圖5 )， 並隨著從圖5右方到左方朝向與行進方向相反側扭轉。在 使用預定直徑的直立式銑刀形成貫通軸芯的孔之後，令輪 轂軸2 1在行進方向一邊緩慢地旋轉.，一邊在軸方向中央 側送進而形成這樣的貫通槽2 1 b。因此，這樣的貫通槽 21b是在兩端呈交叉的貫通孔隨著其朝軸方向的移動而 逐漸旋轉所形成的螺旋狀連續形狀。該槽傾斜角度/3最好 是從1 0度至5 0度的範圍。 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 驅動體2 2 —端係藉由滾珠3 0以及珠巢3 1而被支 撐在輪轂軸2 1上，並可自由旋轉，在其中一端的外周固 定有一小齒輪3 2。而且在驅動體2 2的另一端內周沿軸 方向形成多個花鍵內齒22a。 輪轂殼體2 3是筒狀構件，在其內周的收容空間 2 3 a收容驅動體2 2以及行星齒輪機構2 4。輪轂殼體 2 3藉由滾珠3 3、3 4以及珠巢3 5而能繞著輪轂.軸 2 1旋轉。而且，在輪轂殻體2 3的外周兩端固定有用於 支撐輻條7a (參照圖1)的輪轂36、37。 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） "" 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（14 ) 〔行星齒輪機構的結構〕 行星齒輪機構2 4具有：與輪轂軸2 1同一圓心而且 形成一體的恆星齒輪4 0、配置在輪轂軸2 1外周的齒輪 環架4 1、與恆星齒輪4 0嚙合的3個行星齒輪4 2 (圖 中僅示出了1個行星齒輪）、環齒輪43。 齒輪環架4 1是筒狀的構件，可自由旋轉地被支撐在 輪轂軸21。在齒輪環架41上，沿圓周方向形成3個凹 口 4 1 a，由銷4 4將行星齒輪4 2支撐在該各凹口 4 1 a上並可自由旋轉。而且，在齒輪環架4 1的一端內 周形成花鍵內齒4 1 b，在另一端外周形成花鍵外齒 4 1 c (圖 1 ) 〇 環齒輪4 3大致形成爲圓筒狀，並從行星齒輪4 2延 伸至驅動體2 2的外周。在環齒輪4 3的另一端內周形成 內齒4 3 b。如前所述，當行星齒輪4 2與恆星齒輪4 0 嚙合的同時，也與環齒輪4 3的內齒4 3 b嚙合。 而且，在環齒輪4 3的一端形成凹口 4 3 a，如圖4 所示’構成第1單向離合器5 0的離合器棘爪5 3由銷 5 4支撐在該凹口 4 3 a上並可自由擺動。該離合器棘爪 5 3被扭轉螺旋彈簧5 5朝向豎立的方向施加彈推力量。 第1單向離合器5 0從環齒輪2 4朝向輪轂殼體2 3僅傳 遞行進方向的旋轉驅動力。僅在於當環齒輪2 4在行進方 向旋轉時，離合器棘爪5 3才與輪轂軸2 3內周面所形成 的棘輪齒2 3 b嚙合。該第1單向離合器5 0能夠進行動 力傳遞狀態與動力切斷狀態的切換，動力傳遞狀.態是能夠 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） (讀先閱讀背面之注意事項再填寫本頁) 訂 A7 _B7_ 五、發明説明（15 ) 傳遞環齒輪2 4在行進方向旋轉的狀態，也即離合器棘爪 5 3藉由後述的離合器構件的移動而與棘輪爪2 3 b相嚙 合的動力傳遞狀態，當離合器棘爪5 3從棘輪爪2 3 b避 開則成爲動力切斷狀態。 在驅動體2 2與環齒輪2 4之間配置有第2單向離合 器5 1，該第2單向離合器5 1從驅動體2 2朝向環齒輪 2 4僅傳遞行進方向的旋轉驅動力。而且，在齒輪環架 4 1與輪轂殼體2 3之間配置第3單向離合器5 2，該第 3單向離合器5 2從齒輪環架4 1朝向輪轂殼體2 3僅傳 遞行進方向的旋轉驅動力。另外，第3單向離合器5 2在 一端內周具有形成花鍵內齒5 6 a的筒狀的離合器殼體 5 6。該花鍵內齒5 6 a與齒輪環架4 1的花鍵外齒 4 1 c卡合，離合器殼體5 6與齒輪環架4 1 一體旋轉。 這兩個單向離合器5 1、5 2與第1單向離合器5 0不同 ，不進行在能夠傳遞動力狀態的切換。 〔操作機構的結構〕 經濟部中央標準局員工消費合作社印製 操作機構2 5是用來選擇動力傳遞路徑的構件，具有 離合器構件4 5和離合器操作部4 6。 離合器構件4 5是用以對驅動體_2 2與齒輪環架4 1 進行連結狀態與脫離狀態的切換，而且對第1單向離合器 5 0進行動力傳遞狀態與動力切斷狀態的切換。離合器構 件4 5配置在輪轂軸2 1的外周，沿軸方向可自由移動並 能自由轉動。 -18- (讀先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） 經濟部中央標隼局員工消費合作社印製 A7 B7 五、發明説明（16 ) 如圖4所示，離合器構件4 5爲一筒狀構件，在其一 端的外周形成花鍵外齒4 5 a，花鍵外齒4 5 a與花鍵內 齒2 2 a可自由滑動地相卡合。而且，在離合器構件4 5 的另一端形成大直徑部分45b，並在其外周形成花鍵外 齒4 5 c。花鍵外齒4 5 c能與在齒輪環架4 1上形成的 花鍵內齒4 1 b相卡合。大直徑部分4 5 b與一端之間形 成錐面4 5 d。設置該錐面4 5 d是爲了把第1單向離合 器5 0的離合器棘爪5 3從以實線表示的豎立位置（動力 傳遞位置）放倒成爲以雙點虛線表示的避開位置（動力切 斷位置）。當離合器構件45從左側朝向右端的減速位置 移動時，離合器棘爪5 3沿錐面4 5 d上到大直徑部分 4 5 b而放倒成爲避開狀態。 在離合器構件4 5的內周面，形成如圖3所示在軸方 向相隔間距的2個階梯部4 5 e、4 5 f。如圖4所示， 左側的階梯部4 5 f上形成在圓周方向相隔間距的多個凸 輪面4 7。如圖5所示，凸輪面4 7具有：一端凹入的平 面4 7 a、與平面4 7 a的行進方向A的下流側相連的圓 弧面4 7 b、與上流側相連的傾斜面4 7 c。該傾斜面 4 7 c相對軸芯的傾斜角度α比貫通槽2 1 b的槽傾斜角 度/5大，而且是在2 0度至7 0度的範圍尤佳。 離合器操作部4 6可令離合器構件4 5在輪轂軸2 1 的軸方向移動’並且與離合器構件4 5卡合，將離合器構 件4 5的旋轉驅動力轉換爲軸方向的位移。如圖3所示， 離合器操作部4 6具有在操作孔2 1 a內軸方向移動的推 本紙張尺度適用中國國家標準（CNS ) A4規格（210 X297公楚） 19- (請先閱讀背面之注意事項再填寫本頁)A7 _B7______ V. Description of the invention (13) Operating mechanism 2 for selecting the power transmission path 5. Double-arm crank 2 for operating the operating mechanism 2 5 6. Inverted brake device 27. As shown in FIG. 2 and FIG. 3, 'the hub shaft 21 is a rod-shaped member' having a large diameter at the middle portion and a small diameter at both end portions' and having threads at both ends. An operating hole 21a is formed in the shaft core portion of the wheel valley shaft 21 from the right end toward the middle portion in FIG. A through groove 2 1 b penetrating the shaft core is formed near the bottom of the operation hole 2 1 a. The through groove 2 1 b penetrates the shaft core of the hub shaft 21, and is inclined with respect to the shaft core by a predetermined groove inclination angle （(refer to FIG. 5), and twists from the right side to the left side in FIG. 5 toward the side opposite to the traveling direction. After forming a hole penetrating the shaft core using an upright milling cutter of a predetermined diameter, the hub shaft 21 is rotated slowly in the direction of travel. The through-hole 2 1 b is formed while being fed in the center of the shaft direction. Therefore, such a through-groove 21b is a continuous spiral shape formed by the through-holes crossing at both ends gradually rotating as the shaft moves in the axial direction. The groove inclination angle / 3 is preferably in a range from 10 to 50 degrees. Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling this page). Drive body 2 2 —The end is supported on the hub shaft 21 by the ball 30 and the bead nest 31, It can rotate freely, and a small gear 3 2 is fixed on the outer periphery of one end thereof. A plurality of spline internal teeth 22a are formed on the inner periphery of the other end of the driving body 22 in the axial direction. The hub housing 23 is a cylindrical member, and the driving body 22 and the planetary gear mechanism 24 are accommodated in a storage space 2 3 a on its inner periphery. The hub housing 2 3 can rotate around the hub. Shaft 2 1 by means of balls 3 3, 3 4 and bead nests 35. Further, hubs 36, 37 for supporting the spokes 7a (see Fig. 1) are fixed to both ends of the outer periphery of the hub housing 23. This paper size applies to Chinese National Standard (CNS) A4 (210X297 mm) " " Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (14) [Structure of planetary gear mechanism] Planetary gear mechanism 2 4 has: a sun gear 4 0 which is in the same center with the hub shaft 2 1 and integrated, a ring gear 4 1 arranged on the outer periphery of the hub shaft 2 1, and 3 planetary gears 4 2 meshing with the sun gear 4 0 (in the figure) Only one planetary gear is shown) and the ring gear 43. The ring gear 41 is a cylindrical member, and is rotatably supported on a hub shaft 21. On the gear ring carrier 41, three notches 4 1 a are formed in the circumferential direction, and the planet gears 4 2 are supported by the pins 4 4 on the respective notches 4 1 a and can rotate freely. Further, spline internal teeth 4 1 b are formed on the inner periphery of one end of the gear ring carrier 41, and spline external teeth 4 1 c are formed on the outer periphery of the other end. The ring gear 4 3 is formed substantially in a cylindrical shape, and It extends from the planetary gear 42 to the outer periphery of the driving body 22. Internal teeth 4 3 b are formed on the inner periphery of the other end of the ring gear 4 3. As described above, when the planetary gear 4 2 meshes with the sun gear 4 0, it also meshes with the internal teeth 4 3 b of the ring gear 4 3. Further, a notch 4 3 a is formed at one end of the ring gear 43, and as shown in FIG. 4, the clutch pawl 5 3 constituting the first one-way clutch 50 is supported by the notch 4 3 a by a pin 5 4 and Free to swing. The clutch pawl 5 3 is biased by a torsion coil spring 5 5 in an upright direction. The first one-way clutch 50 transmits only a rotational driving force in the traveling direction from the ring gear 24 to the hub housing 23. Only when the ring gear 24 is rotated in the traveling direction, the clutch pawl 5 3 meshes with the ratchet teeth 2 3 b formed on the inner peripheral surface of the hub shaft 23. The first one-way clutch 50 can switch between the power transmission state and the power cut-off state, and the power transmission state. The state is able to apply the Chinese National Standard (CNS) A4 specification (210X297 mm) to this paper size (read first read the back Please pay attention to this page and fill in this page) Order A7 _B7_ V. Description of the invention (15) Transmission ring gear 2 4 is rotating in the direction of travel, that is, clutch pawl 5 3 and ratchet pawl 2 are moved by the clutch member described later. 3 b meshes with the power transmission state, and when the clutch pawl 5 3 is avoided from the ratchet pawl 2 3 b, it is in a power-off state. A second one-way clutch 51 is arranged between the driving body 22 and the ring gear 24, and the second one-way clutch 51 transmits only the rotational driving force in the traveling direction from the driving body 22 to the ring gear 24. A third one-way clutch 5 2 is disposed between the gear ring carrier 41 and the hub housing 23, and the third one-way clutch 5 2 transmits only the traveling direction from the gear ring carrier 41 to the hub housing 23. Rotary driving force. In addition, the third one-way clutch 52 has a cylindrical clutch case 56 formed on the inner periphery of one end to form a splined internal tooth 5 6a. The spline inner teeth 5 6 a are engaged with the spline outer teeth 4 1 c of the gear ring frame 41, and the clutch housing 56 and the gear ring frame 4 1 rotate integrally. These two one-way clutches 51 and 52 are different from the first one-way clutch 50 in that they do not switch between states capable of transmitting power. [Structure of operating mechanism] Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs The operating mechanism 25 is a member for selecting a power transmission path, and includes a clutch member 45 and a clutch operating section 46. The clutch member 45 is used to switch between the connected state and the disengaged state of the driving body_2 2 and the gear ring frame 4 1, and to switch the power transmission state and the power cut state of the first one-way clutch 50. The clutch member 45 is disposed on the outer periphery of the hub shaft 21, and is free to move and rotate in the shaft direction. -18- (Read the precautions on the back before you fill in this page) This paper size applies the Chinese National Standard (CNS) A4 size (210 X 297 mm) Printed by the Consumer Cooperatives of the Central Standardization Bureau of the Ministry of Economic Affairs A7 B7 5. Description of the invention (16) As shown in FIG. 4, the clutch member 45 is a cylindrical member, and a spline outer tooth 4 5a, a spline outer tooth 4 5 a and a spline inner tooth 2 2 a are formed on an outer periphery of one end thereof. Can be slid freely. Further, a large-diameter portion 45b is formed on the other end of the clutch member 4 5, and spline external teeth 4 5 c are formed on the outer periphery thereof. The external spline teeth 4 5 c can be engaged with the internal spline teeth 4 1 b formed on the gear ring frame 41. A conical surface 4 5 d is formed between the large-diameter portion 4 5 b and one end. The tapered surface 4 5 d is provided to lower the clutch pawl 5 3 of the first one-way clutch 50 from the upright position (power transmission position) indicated by a solid line to the avoidance position (power indicated by a two-dot chain line). Cut-off position). When the clutch member 45 is moved from the left to the deceleration position toward the right end, the clutch pawl 5 3 is brought up to the large-diameter portion 4 5 b along the tapered surface 4 5 d and is brought into an avoided state. On the inner peripheral surface of the clutch member 45, two stepped portions 4 5e and 4 5 f spaced apart from each other in the axial direction are formed as shown in FIG. 3. As shown in FIG. 4, a plurality of convex surfaces 47 are formed on the left stepped portion 4 5 f at intervals in the circumferential direction. As shown in FIG. 5, the cam surface 4 7 has a flat surface 4 7 a recessed at one end, an arc surface 4 7 b connected to the downstream side of the traveling direction A of the flat 4 7 a, and an inclined surface 4 connected to the upstream side. 7 c. The inclination angle α of the inclined surface 4 7 c with respect to the shaft core is larger than the groove inclination angle / 5 of the through groove 2 1 b, and is more preferably in a range of 20 to 70 degrees. The clutch operating portion 46 can move the clutch member 45 in the axial direction of the hub shaft 21 and engage with the clutch member 45 to convert the rotational driving force of the clutch member 45 to an axial displacement. As shown in Fig. 3, the clutch operating part 46 has a pushing paper size that moves in the axial direction of the operating hole 21a. The size of the paper is applicable to China National Standard (CNS) A4 (210 X297). 19- (Please read the (Please fill in this page again)

經濟部中央標準局員工消費合作社印裝 A7 B7 五、發明説明（17 ) 桿4 8以及由推桿4 8朝向齒輪環架4 1側按壓的變速鍵 4 9° 如圖6所示，推桿4 8具有：預定長度的操作體 6 5、安裝在操作體6 5的前端並能在軸方向移動的動作 體6 6、配置在操作體6 5與動作體6 6之間的第1螺旋 彈簧6 0。操作體6 5具有桿6 8以及被桿6 8旋入的抵 接部6 9。在桿6 8的基端形成螺紋部6 8 a，在前端形 成大直徑部6 8 b。將螺紋部6 8 a旋入到抵接部6 9。 另外，大直徑部6 8 b可自由滑動地安裝在動作體6 6內 部所形成的導孔6 6'a內。另外，導孔6 6 a在操作體 6 6側的直徑變小，使其無法拔出動作體6 6。第1螺旋 彈簧6 0以壓縮狀態安裝在動作體6 6的端面與抵接部 6 9的端面之間，並在動作體6 6與操作體6 5互相分開 的方向上施加彈推力量，當動作體6 6按壓變速鍵4 9時 ’第1螺旋弾賛6 0對離合器構件4 5朝向齒輪環架4 1 側施加彈推力量。 如圖4所示’變速鍵4 9是斷面爲三角形狀的桿狀構 件’當被按壓時，變速鍵4 9在貫通槽2 1 b內朝向與行 進方向相反的方向旋轉，也就是，一邊扭轉一邊在軸方向 移動。變速鍵4 9對貫通槽2 1 b的接觸面4 9 b形成與 貫通槽2 1 b —樣的角度。例如，貫通槽2 1 b的槽傾斜 角度/5爲3 0度的情況，接觸面4 9 b相對輪轂軸芯的角 度大致也是3 0度。而且’由於安裝在離合器構件4 5的 另一端內周的擋圈6 3使變速鍵4 9在離合器構件4 5的 (請先閱讀背面之注意事項再填寫本頁) 丨 IT------#, 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公楚） -20- 經濟中央標準局員工消費合作社印製 A7 B7 五、發明説明（18 ) 內部朝向外方的移動被限制。因此，實際上係如圖4所示 ，不會朝向離合器構件4 5外方飛出。由此，變速鍵4 9 被推桿4 8按壓，使離合器構件4 5朝向圖3左方移動。 而且，變速鍵4 9在離合器構件4 5的內部能夠與凸 輪面4 7抵接。在變速鍵4 9與凸輪面4J的平面4 7 a 抵接的狀態下，當離合器構件4 5在行進方向旋轉時，變 速鍵4 9被凸輪面4 7的傾斜面4 7 c朝向貫通槽2 1 b 的導引面2 1 c側按壓，而被限制其朝向軸方向左方的移 動，而離合器構件4 5朝向軸方向右方移動。.即：將離合 器構件4 5的旋轉驅動力轉換爲軸方向的位移，輔助變速 操作。 在變速鍵49的兩端形成凹口49a ，在此處卡住第 2螺旋彈簧6 1，該第2螺旋彈簧的一端卡在輪轂軸2. 1 上。由該第2螺旋彈簧6 1對變速鍵4 9總是朝向離合器 構件4 5側施加彈推力量。而且，在變速鍵4 9與離合器 構件4 5之間安裝第3螺旋彈簧6 2。第3螺旋彈簧6 2 由未圖示的限制構件將其全長設定爲預定的長度，當第3 螺旋彈簧6 2被壓縮時，在變速鍵4 9與離合器構件4 5 抵接之前對兩構件在相離開方向施加彈推力量。由此，移 動中離合器構件4 5與變速鍵4 9相隔一定距離而被正確 地確定位置。 此處，第1〜第3螺旋彈簧60、6 1、62的彈推 力量是按此順序減小。亦即，彈簧力按此順序減小。此處 如果第1螺旋彈簧6 0的彈簧力比第2螺旋彈簧6 1小， 本紙張尺度適用中國國家標準（CNS ) M規格（210X297公釐） -21 - (請先閱讀背面之注意事項再填寫本頁)Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (17) The lever 4 8 and the shift key 4 9 ° pressed by the pusher 4 8 toward the gear ring frame 4 1 ° As shown in Figure 6, the pusher 4 8 has: an operating body 6 of a predetermined length 5, an operating body 6 mounted on the front end of the operating body 6 5 and capable of moving in the axial direction 6, and a first coil spring disposed between the operating body 6 5 and the operating body 6 6 6 0. The operating body 6 5 includes a lever 68 and an abutment portion 69 which is screwed by the lever 68. A threaded portion 6 8 a is formed at the base end of the rod 6 8, and a large-diameter portion 6 8 b is formed at the front end. The screw portion 6 8 a is screwed into the abutting portion 69. In addition, the large-diameter portion 6 8 b is slidably mounted in a guide hole 6 6'a formed in the inner portion of the action body 6 6. In addition, the diameter of the guide hole 6 6 a on the side of the operation body 6 6 becomes smaller, making it impossible to pull out the operation body 6 6. The first coil spring 60 is mounted in a compressed state between the end surface of the moving body 66 and the end surface of the abutment portion 69, and applies a spring force in a direction where the moving body 66 and the operating body 65 are separated from each other. When the moving body 6 6 presses the shift key 4 9, the first screw 6 is applied to the clutch member 4 5 toward the gear ring frame 4 1 side. As shown in FIG. 4, 'the shift key 49 is a rod-shaped member having a triangular shape in cross section.' When pressed, the shift key 49 is rotated in the through groove 2 1 b in a direction opposite to the traveling direction, that is, one side Twist and move in the axial direction. The contact surface 4 9 b of the shift key 49 with respect to the through-groove 2 1 b forms the same angle as the through-groove 2 1 b. For example, when the groove inclination angle / 5 of the through groove 2 1 b is 30 degrees, the angle of the contact surface 4 9 b with respect to the hub shaft core is also approximately 30 degrees. And 'Because the retaining ring 6 3 installed on the inner periphery of the other end of the clutch member 4 5 makes the shift key 4 9 on the clutch member 4 5 (Please read the precautions on the back before filling this page) 丨 IT ----- -#, This paper size applies Chinese National Standard (CNS) A4 specification (210X297 Gongchu) -20- Printed by the Consumers' Cooperative of the Central Bureau of Economic Standards A7 B7 V. Description of the invention (18) Movement inside to outside is restricted. Therefore, as shown in FIG. 4, it does not actually fly out of the clutch member 45. Thereby, the shift key 49 is pressed by the push rod 48, and the clutch member 45 is moved to the left of FIG. Further, the shift key 49 can abut against the cam surface 47 in the clutch member 45. In a state where the shift key 4 9 is in contact with the plane 4 7 a of the cam surface 4J, when the clutch member 45 is rotated in the traveling direction, the shift key 4 9 is directed toward the through groove 2 by the inclined surface 4 7 c of the cam surface 4 7. The guide surface 1 b on the 2 c side is pressed to restrict its movement to the left in the axial direction, and the clutch member 45 moves to the right in the axial direction. That is, the rotational driving force of the clutch member 45 is converted into a displacement in the axial direction to assist the shift operation. 1 上。 Notches 49a are formed at both ends of the shift key 49, where the second coil spring 61 is caught, and one end of the second coil spring is caught on the hub shaft 2.1. The second coil spring 61 always applies a spring force to the shift key 4 9 toward the clutch member 45 side. A third coil spring 62 is mounted between the shift key 49 and the clutch member 45. The third coil spring 6 2 is set to a predetermined length by a restriction member (not shown), and when the third coil spring 6 2 is compressed, the two members are held in position before the shift key 4 9 and the clutch member 4 5 abut. Phases exert a push force in the direction of departure. Thereby, the clutch member 45 and the shift key 49 are spaced a certain distance from each other during movement, and the position is accurately determined. Here, the spring force of the first to third coil springs 60, 61, and 62 decreases in this order. That is, the spring force decreases in this order. Here, if the spring force of the first coil spring 60 is smaller than that of the second coil spring 61, this paper size applies the Chinese National Standard (CNS) M specification (210X297 mm) -21-(Please read the precautions on the back before (Fill in this page)

經濟部中央標準局員工消費合作社印繁 A7 B7____ 五、發明説明（19 ) 則即使用推桿4 8按壓變速鍵49，第1螺旋彈簧60也 會變形，而變速鍵4 9不移動。而且，如果第2螺旋彈簧 6 1的彈簧力比第3螺旋彈簧6 2小，則即使用第2螺旋 彈簧61按壓變速鍵4 9，變速鍵4 9也不會到達凸輪面 47，不能輔助變速操作。 另外，因爲第1螺旋彈簧6 0在操作孔2 1 a內配置 在操作體6 5與動作體6 6之間的比較大的空間內，所以 能增加彈簧圈數而可減小彈簧常數和彈簧力。因此，能夠 進而減小第2以及第3螺旋彈簧6.1、6 2的彈簧常數和 彈簧力，可以減小朝向增速側變速時按壓推桿4 8的力量 。亦即，能夠減小在變速操作部9的捲取控制桿的操作力 。結果，也減小了內纜線的張力，內纜線不容易破斷。 〔雙臂曲柄結構〕 雙臂曲柄2 6安裝在輪轂軸2 1的軸端。雙臂曲柄 2 6具備：安裝在軸端的支撐托架7 0、由支撐托架7 0 支撐並可自由擺動的連桿構件7 1。變速操作纜線7 3的 外套管7 3 a卡在該支撐托架7 0上，而內纜線7 3 b卡 在連桿構件7 1上。連桿構件7 1的前端與推桿4 8的基 端抵接。此處係利用變速操作部9來牽引內纜線7 3 b而 使連桿構件7 1擺動，從而按壓推桿4 8而進行朝向增速 側的變速操作。而且，藉由放鬆內纜線由第2螺旋彈簧 6 1藉由變速鍵4 9來按壓離合器構件4 5而進行朝向減 速側的變速操作。 (請先閣讀背面之注意事項再填寫本頁)Yin Fan, Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7____ 5. Description of the Invention (19) Even if the shift key 49 is pressed with the pusher 4 8, the first coil spring 60 will also be deformed, and the shift key 4 9 will not move. Further, if the spring force of the second coil spring 61 is smaller than that of the third coil spring 62, even if the shift key 4 9 is pressed using the second coil spring 61, the shift key 4 9 will not reach the cam surface 47, and the shift cannot be assisted. operating. In addition, because the first coil spring 60 is disposed in the relatively large space between the operating body 65 and the operating body 66 in the operation hole 21a, the number of spring turns can be increased and the spring constant and the spring can be reduced. force. Therefore, it is possible to further reduce the spring constants and spring forces of the second and third coil springs 6.1 and 62, and to reduce the force with which the push rod 48 is pressed when shifting toward the speed increase side. That is, it is possible to reduce the operating force of the take-up control lever in the shift operation portion 9. As a result, the tension of the inner cable is also reduced, and the inner cable is not easily broken. [Two-arm crank structure] The two-arm crank 2 6 is mounted on the shaft end of the hub shaft 21. The dual-arm crank 2 6 includes a support bracket 70 attached to the shaft end, and a link member 71 supported by the support bracket 70 and swingable. An outer sleeve 7 3 a of the shift operation cable 7 3 is caught on the support bracket 70, and an inner cable 7 3 b is caught on the link member 71. The front end of the link member 71 is in contact with the base end of the push rod 48. Here, the shift operation portion 9 is used to pull the inner cable 7 3 b to swing the link member 7 1, thereby pressing the push rod 48 to perform a shift operation toward the speed increase side. Then, by loosening the inner cable, the second coil spring 61 presses the clutch member 45 with the shift key 49 to perform the shifting operation toward the deceleration side. (Please read the notes on the back before filling out this page)

本紙張尺度適用中國國家標準（CNS ) A4規格（210 X 297公釐） -22- 經濟部中央標準局負工消費合作杜印製 A7 B7 五、發明説明（2〇 ) 〔倒踩型剎車裝置的結構〕 如圖2所示，倒踩型剎車裝置2 7安裝在剎車器殼體 5 6中。倒踩型刹車裝置2 7具備：由刹車器殼體5 6支 撐的剎車器輥子5 7、在齒輪環架4 1的另一端外周形成 的凸輪面4 d、在輪轂殼體2 3的另一端內面起制動作用 的刹車塊5 8。當驅動體2 2在逆方向旋轉時，刹車器輥 子5 7由凸輪面4 1 d朝向直徑方向外方推壓。結果，剎 車塊5 8與輪轂殻體2 3的內面接觸而進行制動。 安裝倒踩型剎車裝置2 7容易發生制動鎖定（鎖死） 的現象。制動鎖定現象是在逆轉制動時，當第1單向離合 器5 0爲動力傳遞狀態，正在剎車的狀態下傳遞驅動力而 出現的不能解馀制動的現象。爲了防止這種現象，在該實 施形式中，在第1單向離合器5 0上安裝棘爪架5 9。 棘爪架5 9在輪轂殼體2 3的棘輪爪2 3 b與第1單 向離合器5 0的離合器棘爪5 3之間設有一定角度的間隙 ’設置此間隙是爲了在環齒輪4 3旋轉時能夠解除制動。 亦即，棘爪架5 9使離合器棘爪5 3不能豎立一定角度， 或者即使豎立一定角度，也是使其豎立在不會被棘輪爪 2 3 b卡住的位置，使得驅動開始時的離合器棘爪5 3被 棘輪爪2 3 b卡住的時間滯後些。 _〔變速動作〕 藉由這樣的行星齒輪機構2 4以及單向離合器5 0〜 5 2 ’該內裝型變速輪轂1 〇具有：由驅動體2 2 —環齒 (讀先閱讀背面之注意事項再填寫本頁) -6This paper size applies to the Chinese National Standard (CNS) A4 (210 X 297 mm) -22- Duty printing and production cooperation of the Central Bureau of Standards, Ministry of Economic Affairs, printed A7 B7 V. Description of the invention (2〇) [Inverted brake device Structure] As shown in FIG. 2, a down brake device 27 is installed in a brake housing 56. The down brake device 2 7 includes a brake roller 5 7 supported by a brake housing 5 6, a cam surface 4 d formed on the outer periphery of the other end of the gear ring frame 4 1, and the other end of the hub housing 2 3 The inner surface of the brake pads 5 8. When the driving body 22 is rotated in the reverse direction, the brake roller 5 7 is pushed outward by the cam surface 4 1 d in the diameter direction. As a result, the brake pads 58 and 8 come into contact with the inner surface of the hub housing 23 to perform braking. Attaching the down brake type brake device 27 is prone to brake locking (locking). The brake lock phenomenon is a phenomenon that the brake cannot be released when the first one-way clutch 50 is in the power transmission state and the driving force is being transmitted while the brake is being reversed. To prevent this, in this embodiment, a pawl holder 59 is attached to the first one-way clutch 50. A pawl holder 5 9 is provided with a clearance at a certain angle between the ratchet claw 2 3 b of the hub housing 2 3 and the clutch pawl 5 3 of the first one-way clutch 5 0. The clearance is provided for the ring gear 4 3 The brake can be released during rotation. That is, the pawl holder 5 9 prevents the clutch pawl 5 3 from being erected at a certain angle, or even if it is erected at a certain angle, it is erected at a position that will not be caught by the ratchet pawls 2 3 b, so that the clutch ratchet at the start of driving The time when the claw 5 3 is caught by the ratchet claw 2 3 b is delayed. _ [Speed change operation] With such a planetary gear mechanism 24 and one-way clutches 5 0 to 5 2 'the built-in type shift hub 1 〇 has: driven body 2 2-ring gear (read the precautions on the back first) Refill this page) -6

IP 本紙張尺度適用中國國家標準（CNS ) Μ規格（210X297公釐） -23- 經 濟 部 中 央 標 準 局 員 工 消 合 作 社 A7 B7 五、 發明説明 (21 ) 1 1 輪 .4 3 — 行 星 齒輪機 構2 4 — 齒 輪 環 架 4 1 — 輪 轂 殻 體 nJsz. I 2 3 構 成 的 減 速動力 傳遞 路 徑 > 由 驅 勸 體 2 2 — 環 齒 輪 1 I 4 3 — 輪 轂 殼 體2 3 構成 的 直 結 動 力 傳 遞 路 徑 » 由 驅 動 體 讀 1 1 2 2 '— 離 合 器 構件4 5 — 齒 輪 環 架 7 1 — 行 星 齒 輸 機 構 先 閱 1 I 讀 1 | 5 4 一 ΤΘ. 場 齒 輪 4 3 — 輪轂 殼 體 2 3 構 成 的 增 速 動 力 傳 遞 路 背 面 1 1 徑 〇 之 注 意 1 1 利 用 雙 臂 曲柄2 6藉 由 變 速 操 作 纜 線 7 3 來 操 作推桿 -ψ 再 ,χ 4 8 9 以 進 行 變速。 % 本 頁 以 1 C 減 速 — 增速側 的動 作 1 1 1 在 圖 3 所示推桿 4 8 沒 有 被 壓 入 的狀 態 下 9 離 合 器 構 1 I 件 4 5 配 置 在右端的 減速 位 置 ’ 來 白 驅 動 體 2 2 的 旋 轉 經 訂 I 由 減 速 動 力 傳 遞路徑 被減 速 傳 遞 到 輪 轂 殻 體 2 3 〇 亦即 1 1 輸 入 驅 動 體 2 2的 旋轉 經 由 第 2 單 向 離 合 器 5 1 而 傳 遞 1 1 到 環 齒 輪 4 3 。此時 ，第 1 單 向 離 合 器 5 0 的 離 合 器 棘 爪 1 1 5 3 由 離 合 器 構件4 5而旋 轉 到 圖 4 中 以 雙 點 虛 線 所示 的 避 開 狀 態 第 1單向 離合 器 5 0 成 爲 動 力 切 斷 狀 態 0 因 此 1 1 | 傳 遞 給 環 齒 輪4 3 的旋 轉 進 而 藉 由 行 星 齒 輪 機 構 2 4 、 1 1 齒 輪 •pn 壞 架 4 1 以及第 3單 向 離 合 器 5 2 而傳 動 到 輪 轂 殼 體 1 2 3 〇 這 種 情 況下， 輸入 的 旋 轉 由 恆 星 齒 輪 4 0 、 行 星 齒 "1. 1 輪 〇 4 2 以 及 環 齒輪4 3的 齒 數 所決定 的 變 速 比 被 減 速 輸 出 1 1 ( 另 外 > 當 操作變 速操 作 部 9 的 捲 取 控 制 桿 時 > 雙 臂 曲 I 1 1 柄 2 6 的 連 桿 構件7 1擺 動 ， 推 桿 4 8 被 推 進 —* 段 〇 結 果 1 1 1 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -24- 經濟部中央標準局員工消費合作社印製 A 7 _B7____ 五、發明説明（22 ) ，因爲第1螺旋彈簧6 0的彈簧力比第2螺旋彈簧6 1的 彈簧力大，所以變速鍵4 9藉由推桿4 8由連桿構件7 1 推壓而被導入貫通槽2 1 b內，一邊繞著輪轂軸旋轉一邊 朝向圖3左方移動，離合器構件4 5藉由擋圈6 3也被推 壓而朝向直結位置移動。而後，當離合器構件4 5配置在 圖7所示的直結位置時，藉由錐面4 5 d而成爲避開狀態 的第1單向離合器5 0的棘爪5 3由於扭轉螺旋彈簧5 5 的彈簧力而恢複到圖4中以實線所示的豎立狀態。在該狀 態下，第1單向離合器5 0從環齒輪4 3朝_向輪轂殻體 2 3僅能傳遞行進方向的旋轉。因此，來自驅動體2 2的 旋轉經由直結動力傳遞路徑就此而傳遞到輪轂殼體2 3。 亦即，輸入驅動體2 2的旋轉經由第2單向離合器5 1傳 遞到環齒輪4 3，進而藉由第1單向離合器5 0傳遞到輪 轂殼體2 3 ’驅動體2 2的旋轉經由環齒輪4 3直接傳遞 到輪轂殼體2 3。另外，此時的旋轉從環齒輪4 3藉由行 星齒輪機構2 4傳遞到齒輪環架4 1，齒輪環架4 1減速 旋轉，但因爲輪轂殼體2 3的旋轉比齒輪環架4 1快，所 以旋轉不會從齒輪環架4 1藉由第3單向離合器5 2而傳 遞到輪轂殼體2 3。 當從直結狀態操作捲取控制桿並進一步壓入推桿4 8 時，變速鍵4 9進一步朝向左方移動，離合器構件4 5也 相應隨此朝向增速位置移動。而後，當離合器構件4 5配 置在圖8所示的增速位置時，離合器構件4 5的花鍵外齒 4 5 c與齒輪環架4 1的花鍵內齒4 1 b嚙合。在朝向該 本紙張尺度適用中國國家標率（CNS ) A4規格（210X 297公f ) 7〇ζ~. -- (讀先閏讀背面之注意事項再填寫本頁) -------------11^5------、w------3:1----: kl B7 五、發明説明（23 ) 增速位置移動時，當離合器構件4 5配置在離合器構件 4 5的花鍵外齒4 5 c與齒輪環架4 1的花鍵內齒4 1 b 相嚙合的位置時，在離合器構件4 5與齒輪環架4 1抵接 之後，離合器構件4 5就此而朝向左方的增速位置移動。 但是，當離合器構件4 5配置在未互相嚙合的位置時，在 離合韹構件4 5與齒輪環架4 1抵接時，變速鍵4 9以及 離合器構件4 5暫時停止朝向左方的移動。是以，推桿 48的動作部6 6就後退，第1螺旋彈簧6 0壓縮，變速 鍵4 9被按壓。而後，當離合器構件4 5旋轉並且2個齒 45c、41b變成嚙合位置時，由於第1螺旋彈簧60 的彈簧力藉由變速鍵4 9離合器構件4 5移動，2個齒 45c、41b互相嚙合。 經濟部中央標準局員工消費合作社印製 在該狀態下，傳遞至驅動體2 2的旋轉經由增速傳遞 路徑而傳遞到輪轂殼體2 3。亦即，從驅動體2 2藉由離 合器構件4 5而傳遞到齒輪環架4 1。進而，傳遞到齒輪 環架41的旋轉經由行星齒輪機構2 4、環齒輪4 3以及 第1單向離合器5 0而傳遞到輪轂殼體2 3。這種情況， 輸入的旋轉由恆星齒輪4 0、行星齒輪4 2以及環齒輪 4 3的齒數所決定的變速比被增速輸出。另外，雖然此時 藉由第2單向離合器51從驅動體22朝向環齒輪43傳 遞旋轉，但因爲環齒輪4 3的旋轉比驅動體2 2快，所以 不會從第2單向離合器51傳遞旋轉。 以這種方式從減速側朝向增速側變速時，因爲是在驅 動體2 2與環齒輪4 3之間直接傳遞旋轉，所以，可以使 -26- (請先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐〉 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（24 ) 沒有彈推力量的離合器構件4 5移動。因此，可令用以推 壓離合器構件4 5的第1螺旋彈簧6 0的彈簧力小些，而 且，因爲第2螺旋彈簧6 1的彈簧力更小，所以可以輕鬆 地進行變速操作。 〔增速一減速側的輔助動作〕 當在圖8所示的增速位置操作變速操作部9的解除控 制桿時，第1螺旋彈簧6 0的彈推力量消失，變速鍵4 9 由第2螺旋彈簧6 1按壓，推桿4 8 a朝向右方後退一段 。而後，變速鍵4 9藉由第3螺旋彈簧6 2而按壓離合器 構件4 5，使離合器構件4 5朝向直結位置移動。在未踏 著腳踏板而不傳遞驅動力時，離合器構件4 5從齒輪環架 4 1脫離，離合器構件4 5移動至直結位置。但是，因爲 當踏著腳踏板時是從離合器構件4 5朝向齒輪環架4 1傳 遞驅動力，所以，因摩擦力而會有花鍵內齒4 1 b與花鍵 外齒4 5 b相嚙合的情況。這種情況，僅由第2螺旋彈簧 的6 1的彈推力量離合器構件4 5不會朝向圖8右方移動 。在這種狀態下，如圖5所示，當變速鍵4 9與離合器構 件4 5的凸輪面4 7的平面4 7 a抵接時，藉由離合器構 件4 5朝向行進方向A的旋轉，變速鍵4 9***貫通槽 21b部分的整個長度被按壓在導引面21c側而由於摩 擦力很難在軸方向避開。結果，當變速鍵4 9上到傾斜面 47 c時’離合器構件45朝向右方移動。而後，當花鍵 內齒4 1 b與花鍵外齒4 5 c的嚙合脫開，離合器構件 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -27- -----1.--r^,4------訂 (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局一貝工消費合作社印製 A7 B7 五、發明説明（25 ) 4 5藉由變速鍵4 9由第2螺旋彈簧6 1按壓而朝向直結 位置移動。亦即，藉由變速鍵4 9與離合器構件4 5的凸 輪面4 7 c的接觸，將離合器構件4 5的旋轉運動轉換爲 軸方向的位移而能夠用來輔助變速。 此處，因爲變速鍵4 9由第2螺旋彈簧6 1按壓，而 且貫通槽2 1 b相對軸芯傾斜且扭轉成螺旋狀，所以，如 前所述，變速鍵4 9很難朝向軸方向左方避開。因此，當 所傳遞的驅動力小於第2螺旋彈簧61的彈推力量以及變 速鍵4 9與導引面2 1 c的摩擦力的合力時，變速鍵4 9 不會朝軸方向避開。但是，當驅動力大於彈推力量時，則 會出現離合器構件4 5不移動而變速鍵4 9克服第2螺旋 彈簧6 1的彈推力量以及與導引面2 1 c的摩擦力，朝向 軸方向左方避開。此處，上述摩擦力大小係可藉由槽傾斜 角度/3來設定。~如果使該槽傾斜角度石過大，則在用推桿 4 8按壓變速鍵4 9時，變速鍵4 9難以朝向左方移動。 而且如果使該槽傾斜角度/3過小，則雖然使推桿4 8按壓 時的阻力減小，但摩擦力也減小。因此，該槽傾斜角度卢 最好是在1 0度至5 0度的範圍。另外，藉由調整該槽傾 斜角度/5和凸輪面4 7的傾斜面4 7 c的傾斜角度α以及 3個螺旋彈簧6 0〜6 2的彈簧力，則可以調整輔助時變 速鍵49避開的驅動力的臨界値。 另外，即使作用較之所設定的驅動力更大的驅動力， 在變速鍵4 9在軸方向避開並且離合器構件4 5不移動的 情況’當齒輪曲柄1 8到達上死點或者下死點附近而驅動 本紙張尺度適用中國國家標準（CNS Μ4規格（210X297公釐） -28- -----^---Ίι^^.-- (讀先閱讀背面之注意事項再填转本頁) -訂 A7 ___B7 五、發明説明（26 ) 力減小時’離合器構件4 5藉由變速鍵4 9的輔助力按壓 而朝向右方移動。因此，在上陡坡作用非常大的驅動力時 不進行變速’可減少變速的衝擊，而且花鍵齒以及單向離 合器等驅動力的傳遞部分也不容易損壞。 當離合器構件4 5移動時，變速鍵4 9藉由第3螺旋 彈簧6 2而離開凸輪面4 7。因此，既使離合器構件4 5 旋轉，也不會產生由於因與變速鍵4 9接觸所引起的異常 噪音。而且’當配置在圖7所示的直結位置時，如前所述 ’旋轉經由直結傳遞路徑從驅動體2 2傳遞到輪轂殼體 2 3。 經濟部中央標準局員工消費合作社印製 當離合器構件4 5配置在直結位置的狀態下操作解除 控制桿時，推桿4 8 a進一步後退，變速鍵4 9按壓離合 器構件4 5。此時，離合器構件4 5的錐面4 5 d與第1 單向離合器5 0的離合器棘爪5 3接觸，使離合器棘爪 5 3從豎立狀態倒放成爲避開狀態。但是，因爲離合器棘 爪5 3從環齒輪4 3朝向輪轂殼體2 3傳遞動力，所以， 僅由第2螺旋彈簧61的彈推力量難以將離合器棘爪53 放倒成爲避開狀態。這種情況與前述相同，也是當變速鍵 4 9與離合器構件4 5的凸輪面4 7抵接時，產生輔助力 而使離合器構件4 5在軸方向移動，能夠將離合器棘爪 5 3放倒。 此處，在從減速側朝向增速側的增速變速操作時，因 爲不經由離合器構件4 5而是將旋轉直接傳遞到環齒輪 4 3 ’所以，能夠減小變速時的操作力。而且，在從增速 -29- (讀先間讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X29.7公釐） A 7 B7__ 五、發明説明（27) 側朝向減速側的減速變速操作時，因爲將離合器構件4 5 的旋轉力轉換爲軸方向的位移而輔助變速操作，所以，在 朝向增速側變速時，即使踏著腳踏板的時候，也可以用輕 鬆的操作力來進行變速。 實施形式2 經濟部中央標準局員工消費合作社印製 (讀先閱讀背面之注意事項再填寫本頁) 在前述實施形式1中，是在推桿4 8上安裝第1螺旋 彈簧6 0來達成減小朝向增速側變速時的彈簧力，但如圖 9所示，也可以採用桿狀構件來構成推桿4 8。這種情況 ，第1螺旋彈簧6 0以壓縮狀態配置在離合器構件4 5與 珠巢3 1之間。而且，3個螺旋彈簧60〜62的彈推力 量是按照第2螺旋彈簧61、第3螺旋彈簧62、第1螺 旋彈簧6 0的順序而減小。此處，如果第2螺旋彈簧6 1 的彈推力量比第3螺旋彈簧6 2小，則在使推桿4 8 a朝 向減速側後退時，即使按壓變速鍵4 9，變速鍵4 9也不 會與離合器構件4 5抵接，不能得到輔助力。而且，如果 第3螺旋彈簧6 2的彈推力量比第1螺旋彈簧6 0小，則 在使推桿4 8 a朝向減速側後退而且第2螺旋彈簧6 1按 壓變速鍵4 9時，第3螺旋彈簧6 2變形，僅變速鍵4 9 移動，而變速鍵4 9與離合器構件4 5不能離開，因而不 能確定離合器構件4 5的位置。另外，變速鍵4 9使離合 器構件4 5僅朝向減速側移動，而朝向增速側時兩構件各 自移動。亦即，在離合器構件4 5上不設置擋圈。第3螺 旋彈簧6 2的全長由未圖示的限制構件限制爲一定長度， 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） _ 30 - 經濟部中央標準局員工消費合作社印製 A7 ___B7 五、發明説明（28 ) 既使離合器構件4 5與變速鍵4 9各自移動，也能將其保 持一定的間隔。至於其它結構係與前述的實施形式1相同 ，故省略說明。 〔減速-增速側的動作〕 在這樣的實施形式2中，在圖9所示的推桿4 8 a沒 有被壓入的狀態下，與實施形式1相同，離合器構件4 5 配置在右端的減速位置，來自驅動體2 2的旋轉經由減速 動力傳遞路徑被減速，傳遞到輪轂殼體2 3。亦即，輸入 驅動體2 2的旋轉經由第2單向離合器5 1而傳遞到環齒 輪4 3。 另外，當操作變速操作部9進行捲取控制桿時，雙臂 曲柄2 6的連桿構件7 1擺動，推桿4 8 a被押進一段。 結果，變速鍵4 9被推桿4 8按壓，一邊繞著輪轂軸旋轉 ’一邊朝向圖9左方移動，由第1螺旋彈簧6 0施加彈推 力量的離合器構件4 5隨著變速鍵4 9而朝向直結位置移 動。而後，當離合器構件4 5配置在直結位置時，由錐面 4 5 d而變成避開狀態的第1單向離合器5 0的棘爪5 3 由於扭轉螺旋彈簧5 5 .的彈簧力而恢複到圖4以實線所示 的豎立狀態，與實施形式1相同，來自驅動體2 2的旋轉 經由直結動力傳遞路徑而直接傳遞到輪轂殻體2 3。 當在直結位置操作捲取控制桿並且進一步壓入推桿 4 8 a時，變速鍵4 9繼續朝向左方移動，離合器構件 4 5也隨之朝向增速位置移動。而後，當離合器構件 -----Lid 费------、玎------Q (請先鬩讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐〉 -31 - 經濟部中央樣率局員工消費合作社印製 A7 B7 五、發明説明（29) 4 5配置在增速位置時，離合器構件4 5的花鍵外齒 4 5 c與齒輪環架4 1的花鍵內齒4 1 b嚙合。在朝向該 增速位置移動時，當離合器構件4 5配置在離合器構件 4 5的花鍵外齒4 5 c與齒輪環架4 1的花鍵內齒41 b 相嚙合的位置時，在離合器構件4 5與齒輪環架4 1抵接 後，離合器構件4 5就此朝向左方的增速位置移動。但是 ’當離合器構件4 5配置在未嚙合的位置時，在離合器構 件4 5與齒輪環架4 1抵接時，離合器構件4 5朝向左方 的移動被暫時停止。但是，因爲第1螺旋彈簧6 0的彈推 力量按壓離合器構件4 5，所以當離合器構件4 5旋轉而 2個齒4 5 c、4 1 b變成嚙合位置時，離合器構件4 5 移動而2個齒4 5 c、4 1 b互相嚙合。在該狀態下，與 實施形式1相同，傳遞至驅動體2 2的旋轉經由增速傳遞 路徑傳遞給輪轂殼體2 3。 這樣從減速側朝向增速側變速時，係與實施形式1相 同’因爲在驅動體2 2與環齒輪4 3之間直接傳遞旋轉， 所以可以使沒有彈推力量的離合器構件4 5移動。因此， 可以使得用於按壓離合器構件4 5的第1螺旋彈簧6 0的 彈簧力減小，只要用輕微的力即可進行變速操作。 〔增速一減速側的輔助動作〕 當在增速位置操作解除變速操作部9的解除控制桿時 ’藉由第2螺旋彈簧6 1對變速鍵4 9施加彈推力量，推 桿4 8 a朝向右方後退一段。而後，變速鍵4 9按壓離合 本紙張尺度適用中國國家標準（CNS ) A4規格（2丨0X297公釐） 32 (請先閲讀背面之注意事項再填寫本頁) -a 丁 經濟部中央標準局員工消費合作社印製 A7 B7 五、發明説明（30) 器構件4 5，使離合器構件4 5朝向直結位置移動。但是 ，當踏著腳踏板時，因爲從離合器構件4 5朝向齒輪環架 4 1傳遞驅動力，所以，由於摩擦力會有花鍵內齒4 1 b 與花鍵外齒45 b相互嚙合的情況。這種情況與前述實施 形式1相同，會產生輔助力而使離合器構件4 5朝向減速 .側移動。 另外，當作用的驅動力比預定的驅動力大，並且變速 鍵4 9在軸方向脫離而離合器構件4 5沒移動的情況下， 當齒輪曲柄1 8到達上死點或者下死點附近驅動力減小時 ，離合器構件4 5由於變速鍵4 9的輔助力按壓而移動。 因此，在該寳施形式2中，當作用非常大的驅動力時不進 行變速，因而變速衝擊很少，而且花鍵齒以及單向離合器 等驅動力傳遞部分不容易損壞。 當離合器構件4 5朝向右方移動時，變速鍵4 9藉由 第3螺旋彈簧6 2從凸輪面4 7離開。因此，即使離合器 構件4 5旋轉，也不會產生與變速鍵49相觸的異常聲音 。而且，當將離合器構件4 5配置在直結位置時，則藉由 直結傳遞路徑傳遞旋轉。 當離合器構件4 5配置在直結位置的狀態下，操作解 除控制桿時，推桿4 8 a進一步後退，變速鍵4 9按壓離 合器構件4 5。此時，離合器構件4 5的錐面4 5 d與第 1單向離合器5 0的離合器棘爪5 3接觸，使離合器棘爪 古3從豎立狀態放倒成爲避開狀態。但是，因爲離合器棘 爪5 3從環齒輪4 3朝向輪轂殼體2 3傳遞動力，所以， 本紙張尺度適用中國國家標準（CNS ) A4規輅（210X297公釐） -33 nn tut In m· nn Bm I Bnn ^^^1 >^1— 一OJ (請先閲讀背面之注意事項再填寫本頁) A7 ____B7 五、發明説明（31 ) 僅由第2螺旋彈簧6 1的彈推力量難以將離合器棘爪5 3 放到成.爲避開狀態。這種情況與前述相同，也是當變速鍵 4 9與離合器構件4 5的凸輪面4 7抵接時，產生輔助力 而使離合器構件45在軸方向可以移動。 此處，可得到與前述實施形式1相同的效果，而且使 推桿4 8的結構簡單。但是，在這種情況，因爲配置在較 狹窄空間的第2螺旋彈簧6 1的彈推力量最大，所以，爲 了確保變形量而把第2螺旋彈簧的彈簧常數減小是很困難 的，變形時的彈簧力會急劇增大。因此，增速時所需的操 作力比前述實施形式1大。 實施形式3 在前述2個實施形式中，在沒用推桿按壓的狀態下將 離合器構件配置在減速位置，而在該實施形式中，如圖 1 0所示，將離合器構件4 5配置在增速位置。 經濟部中央標準局員工消費合作社印製 (讀先閱讀背面之注意事項再填寫本頁) 這種情況，在推桿4 8上安裝第2螺旋彈簧6 1。而 且，在離合器構件4 5與珠巢3 1之間配置第1螺旋彈簧 6 0。另外，3個螺旋彈簧6 0〜6 2的彈推力量是按照 第2螺旋彈簧6 1、第3螺旋彈簧6 2、第1螺旋彈簧 6 0的順序減小。這種情況設定不同彈簧力的理由是與實 施形式2相同》 如圖1 0所示，從輪轂軸的圖1 0的左端（倒踩型刹 車裝置安裝側）朝向中央部沿軸芯形成操作孔2 1 a。雙 臂曲柄（未圖示）安裝在輪轂軸2 1的左側軸端。而且， 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -34 - A 7 ___.__B7_ 五、發明説明（32 ) 爲了在變速鍵4 9 a的三角形的頂點抵接推桿4 8，在變 速鍵4 9 a的中央部形成與推桿4 8抵接的凹面4 9 b。 而且，與實施形式2相同，第1螺旋彈簧6 0以壓縮狀態 配置在離合器構件4 5與珠巢3 1之間。其它結構與前述 兩個實施形式相同，故省略說明。 〔增速-減速側的輔助動作〕 經濟.部中央標準局員工消費合作社印製 (#先閱讀背面之注意事項再填寫本頁) 在這樣的實施形式2中，在沒有壓入推桿4 8的圖 1 0所示的狀態下，當在增速位置操作變速操作部9的捲 取控制桿時，變速鍵4 9 a由推桿4 8按壓而克服第1螺 旋彈簧6 0的彈推力量，使離合器構件4 5朝向減速側移 動。此時，在沒有傳遞驅動力時，變速鍵4 9 a藉由第3 螺旋彈簧6 2按壓離合器構件4 5，使離合器構件4 5朝 向直結位置移動。在傳遞驅動力的情況，則第3螺旋彈簧 6 2或者第2螺旋彈簧6 1 —邊變形，變速鍵4 9 一邊與 凸輪面4 7抵接，藉由前述的輔助力使離合器構件4 5移 動。而且，從直結位置朝向減速位置移動時也傳遞驅動力 ，因而難以使離合器棘爪5 3成爲避開狀態，此時藉由輔 助力使離合器構件4 5移動，使離合器棘爪5 3形成爲避 開狀態，使離合器構件4 5朝向減速位置移動。 另外，在作用較之設定的驅動力更大的驅動力，且變 速鍵4 9 a在軸方向脫開而離合器構件4 5不移動的情況 ，當齒輪曲柄1 8到達上死點或者下死點附近驅動力減小 時，離合器構件4 5由於變速鍵4 9 a的輔助力被按壓移 本紙張尺度適用中國國家標準（CNS ) A4規格（2丨0X297公釐） _ _ ~一 經濟部中央標準局員工消費合作社印製 A7 . ___B7 五、發明説明（33 ) 動。因此，該實施形式3中，在作用非常大的驅動力時也 不進行變速，因而變速衝擊很少，而且花鍵齒以及單向離 合器等驅動力傳遞部分不容易損壞。 〔減速-增速側的輔助動作〕 當在減速位置操作解除控制桿時，由第1螺旋彈簧 6 0的彈推力量將離合器構件4 5朝向增速側按壓，推桿 4 8移動，離合器構件4 5朝向直結位置移動。而後，當 離合器構件4 5配置在直結位置時，由於錐面4 5 d而形 成爲避開狀態的第1單向離合器5 0的棘爪5 3由於扭轉 螺旋彈簧5 5的彈簧力恢複到圖4中以實線所示的豎立狀 態，與實施形式1和2相同，來自驅動體2 2的旋轉經由 直結動力傳遞路徑直接傳遞到輪轂殻體2 3。 當在直結位置操作解除控制桿時，由第1螺旋彈簧 6 0的彈推力量將離合器構件4 5朝向增速側按壓，推桿 4 8移動，離合器構件4 5朝向增速位置择動。而後，當 離合器構件4 5配置在增速位置時，離合器構件4 5的花 鍵外齒4 5 c與齒輪環架4 1的花鍵內齒4 1 b嚙合。在 朝向該增速位置移動時，當離合器構件4 5配置在花鍵外 齒4 5 c與花鍵內齒4 1 b相嚙合的位置時，在離合器構 件4 5與齒輪環架4 1抵接之後，離合器構件4 5就此朝 向左方的增速位置移動。但是，但是當離合器構件4 5配 置在花鍵外齒4 5 c與花鍵內齒4 1 b未嚙合的位置時， 在離合器構件4 5與齒輪環架4 1抵接時，暫時停止離合 (請先閲讀背面之注意事項再填寫本頁)IP This paper size applies to Chinese National Standard (CNS) M specifications (210X297 mm) -23- Staff Consumer Cooperatives A7 B7, Central Standards Bureau of the Ministry of Economic Affairs 5. Description of the invention (21) 1 1 round. 4 3 — planetary gear mechanism 2 4 — Gear ring frame 4 1 — Reduced power transmission path composed of hub housing nJsz. I 2 3 > Driven body 2 2 — Ring gear 1 I 4 3 — Directly connected power transmission path composed of hub housing 2 3 »by Drive body read 1 1 2 2 '— clutch member 4 5 — gear ring frame 7 1 — planetary gear transmission mechanism first read 1 I read 1 | 5 4 a TΘ. Field gear 4 3 — hub shell 2 3 speed increase Note on the back of the power transmission path 1 1 diameter 0 Note 1 1 Use the dual-arm crank 2 6 to operate the putter by using the shifting operating cable 7 3 -ψ, and then χ 4 8 9 for shifting. % This page decelerates at 1 C — the action on the acceleration side 1 1 1 In the state where the pusher 4 8 shown in Figure 3 is not pressed 9 Clutch mechanism 1 I piece 4 5 is placed at the right end deceleration position 'to drive white The rotation of the body 2 2 is reduced by the deceleration power transmission path to the hub housing 2 3 〇 1 1 The rotation of the input drive body 2 2 is transmitted to the ring gear 4 through the second one-way clutch 5 1 3. At this time, the clutch pawl 1 1 5 3 of the first one-way clutch 5 0 is rotated by the clutch member 45 to the avoidance state shown by a two-dot chain line in FIG. 4. The first one-way clutch 5 0 is turned off. State 0 Therefore 1 1 | The rotation transmitted to the ring gear 4 3 is transmitted to the hub housing 1 2 3 through the planetary gear mechanism 2 4, 1 1 gear • pn broken frame 4 1 and the third one-way clutch 5 2. In this case, the speed of the input rotation is determined by the number of teeth of the sun gear 40, the planet gear " 1.1 wheels 04, and the ring gear 43, and the gear ratio is reduced and output 1 1 (in addition, when the gear shift operation is performed) At the time of the winding lever of the part 9 > The connecting rod member 7 1 of the double-arm curved I 1 1 handle 2 6 swings, the push rod 4 8 is pushed— * segment 0 result 1 1 1 This paper size applies to the Chinese National Standard (CNS ) A4 specification (210X297 mm) -24- Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs A 7 _B7____ V. Description of the invention 22), because the spring force of the first coil spring 60 is greater than the spring force of the second coil spring 61, the shift key 4 9 is pushed by the link member 7 1 through the push rod 4 8 and is introduced into the through groove 2 Within 1 b, while moving around the hub axis, it moves toward the left in FIG. 3, and the clutch member 4 5 is also pushed by the retaining ring 63 to move toward the straight-knot position. Then, when the clutch member 45 is disposed in FIG. In the illustrated straight-knot position, the pawl 5 of the first one-way clutch 5 0 which has been avoided by the tapered surface 4 5 d is restored to the solid line shown in FIG. 4 by the spring force of the torsion coil spring 5 5. In this state, the first one-way clutch 50 can only transmit the rotation in the direction of travel from the ring gear 4 3 to the hub housing 23. Therefore, the rotation from the driving body 22 is driven by the direct-coupled power. The transmission path is thus transmitted to the hub housing 23. That is, the rotation of the input drive body 2 2 is transmitted to the ring gear 4 3 via the second one-way clutch 51 and further to the hub via the first one-way clutch 50. The rotation of the housing 2 3 ′ drive body 2 2 is directly transmitted to the hub housing 23 via the ring gear 4 3. Another At this time, the rotation is transmitted from the ring gear 4 3 to the ring gear 4 1 through the planetary gear mechanism 2 4, and the ring gear 41 1 rotates at a reduced speed, but because the hub housing 2 3 rotates faster than the ring gear 41, Therefore, the rotation is not transmitted from the gear ring carrier 41 to the hub housing 23 through the third one-way clutch 52. When the take-up control lever is operated from the straight-knot state and the push rod 4 8 is further pushed in, the shift key 4 9 moves further to the left, and the clutch member 4 5 accordingly moves toward the speed increasing position accordingly. Then, when the clutch member 45 is arranged at the speed-up position shown in Fig. 8, the spline external teeth 4 5c of the clutch member 45 are engaged with the spline internal teeth 4 1b of the gear ring carrier 41. Towards this paper scale, the Chinese National Standard (CNS) A4 specification (210X 297 male f) 7〇ζ ~.-(Read the precautions on the back before filling this page) ------- ------ 11 ^ 5 ------, w ------ 3: 1 ----: kl B7 V. Description of the invention (23) When the speed-up position moves, when the clutch member 4 5 is arranged at a position where the spline external teeth 4 5 c of the clutch member 4 5 and the spline internal teeth 4 1 b of the gear ring carrier 4 1 mesh, after the clutch member 45 contacts the gear ring carrier 41, The clutch member 45 is moved toward the left acceleration position. However, when the clutch member 45 is disposed at a position where it does not mesh with each other, the shift key 49 and the clutch member 45 temporarily stop moving to the left when the clutch pin member 45 is in contact with the ring gear 41. Therefore, the operation portion 66 of the push rod 48 is retracted, the first coil spring 60 is compressed, and the shift key 49 is pressed. Then, when the clutch member 45 is rotated and the two teeth 45c and 41b are brought into the meshing position, the spring force of the first coil spring 60 is moved by the shift key 49 and the clutch member 45 and the two teeth 45c and 41b are meshed with each other. Printed by the Consumer Standards Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs In this state, the rotation transmitted to the driving body 2 2 is transmitted to the hub housing 23 via the speed increase transmission path. That is, it is transmitted from the driving body 22 to the ring gear 41 by the clutch member 45. Further, the rotation transmitted to the ring gear 41 is transmitted to the hub housing 23 via the planetary gear mechanism 24, the ring gear 43, and the first one-way clutch 50. In this case, the input rotation is increased at a gear ratio determined by the number of teeth of the sun gear 40, the planet gear 42, and the ring gear 43. In addition, although the rotation is transmitted from the driving body 22 toward the ring gear 43 through the second one-way clutch 51 at this time, the ring gear 43 rotates faster than the driving body 22, so it is not transmitted from the second one-way clutch 51. Spin. When shifting from the decelerating side to the increasing side in this way, because the rotation is directly transmitted between the driving body 2 2 and the ring gear 4 3, you can make -26- (Please read the precautions on the back before filling out this Page) This paper size is in accordance with Chinese National Standard (CNS) A4 specification (210X297 mm) printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economic Affairs and printed by A7 B7 V. Description of the invention (24) The clutch member 4 5 without spring force is moved. Therefore It is possible to make the spring force of the first coil spring 60 for pressing the clutch member 45 smaller, and because the spring force of the second coil spring 61 is smaller, the shift operation can be easily performed. An auxiliary action on the deceleration side] When the release lever of the shift operation section 9 is operated at the speed-up position shown in FIG. 8, the spring force of the first coil spring 60 0 disappears, and the shift key 4 9 is changed by the second coil spring 6 1 Press, the push rod 4 8 a moves back to the right one step. Then, the shift key 4 9 presses the clutch member 4 5 by the third coil spring 62 to move the clutch member 45 toward the straight-knot position. When the pedal is not depressed, Board without transfer drive When the force is applied, the clutch member 45 is disengaged from the ring gear 41, and the clutch member 45 is moved to the straight-knot position. However, because the driving force is transmitted from the clutch member 45 to the ring gear 41 when the pedal is stepped on, Therefore, the spline inner teeth 4 1 b and the spline outer teeth 4 5 b may mesh with each other due to frictional force. In this case, the clutch member 4 5 does not use only the spring force of 6 1 of the second coil spring. It will move to the right in Fig. 8. In this state, as shown in Fig. 5, when the shift key 49 is in contact with the plane 4 7a of the cam surface 47 of the clutch member 45, the clutch member 4 5 Rotation toward the traveling direction A, the entire length of the portion of the shift key 49 inserted into the through groove 21b is pressed against the guide surface 21c side, and it is difficult to avoid it in the axial direction due to friction. As a result, when the shift key 49 is moved up to the inclined surface At 47 c ', the clutch member 45 moves to the right. Then, when the engagement of the internal tooth 4 1 b of the spline and the external tooth 4 5 c of the spline is disengaged, the paper size of the clutch member applies the Chinese National Standard (CNS) A4 specification ( 210X297 mm) -27- ----- 1 .-- r ^, 4 ------ Order (Please read the note on the back first Please fill in this page again.) Printed by Ai Bong Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (25) 4 5 The second coil spring 61 is pressed by the shift key 4 9 to move toward the straight knot position. That is, the contact between the shift key 49 and the cam surface 4 7 c of the clutch member 45 can convert the rotational movement of the clutch member 45 into an axial displacement and can be used to assist the shift. Here, the shift key 4 9 is pressed by the second coil spring 61 and the through groove 2 1 b is inclined relative to the shaft core and twisted into a spiral shape. Therefore, as described above, the shift key 4 9 is difficult to avoid in the left direction of the shaft. Therefore, when the transmitted driving force is smaller than the combined force of the spring force of the second coil spring 61 and the frictional force of the speed change key 49 and the guide surface 21c, the speed change key 49 is not avoided in the axial direction. However, when the driving force is greater than the pushing force, the clutch member 45 does not move and the shift key 4 9 overcomes the pushing force of the second coil spring 61 and the friction force with the guide surface 2 1 c, and faces the shaft. Avoid to the left. Here, the magnitude of the frictional force can be set by the groove inclination angle / 3. ~ If the angle of inclination of the groove is too large, when the shift key 4 9 is pressed with the pusher 4 8, the shift key 4 9 is difficult to move to the left. Further, if the inclination angle / 3 of the groove is made too small, although the resistance when the push rod 48 is pressed is reduced, the frictional force is also reduced. Therefore, the inclination angle of the groove is preferably in the range of 10 to 50 degrees. In addition, by adjusting the inclination angle / 5 of the groove, the inclination angle α of the inclined surface 4 7 c of the cam surface 47, and the spring forces of the three coil springs 60 to 62, the shift key 49 can be adjusted to avoid during assist. The driving force is critical. In addition, even if a larger driving force is applied than the set driving force, in the case where the shift key 49 is avoided in the axial direction and the clutch member 45 does not move, when the gear crank 18 reaches the top dead center or the bottom dead center The paper size is driven by the Chinese national standard (CNS M4 specification (210X297 mm)) -28- ----- ^ --- Ίι ^^ .-- (Read the precautions on the back before filling in this page )-Order A7 ___B7 V. Description of the invention (26) When the force is reduced, the 'clutch member 45' is moved to the right by the auxiliary force of the shift key 49. Therefore, it is not performed when the driving force acting on a steep slope is very large. Shifting can reduce the impact of shifting, and the transmission parts of the driving force such as spline teeth and one-way clutch are not easily damaged. When the clutch member 45 is moved, the shifting key 4 9 is released from the cam by the third coil spring 62. Face 4 7. Therefore, even if the clutch member 4 5 rotates, abnormal noise caused by contact with the shift key 4 9 is not generated. Furthermore, when the clutch member 4 5 is disposed in the straight-knot position shown in FIG. 7, as described above 'Rotate from the drive via a straight knot transfer path 2 2 is transmitted to the wheel housing 2 3. Printed by the Consumer Cooperatives of the Central Standards Bureau of the Ministry of Economic Affairs. When the release lever is operated with the clutch member 4 5 arranged in the straight-knot position, the pusher 4 8 a moves back further, and the shift key 4 9 Press the clutch member 45. At this time, the tapered surface 4 5 d of the clutch member 45 is in contact with the clutch pawl 5 3 of the first one-way clutch 50, and the clutch pawl 5 3 is reversed from the upright state to the avoiding state. However, since the clutch pawl 53 transmits power from the ring gear 43 to the hub housing 23, it is difficult to bring the clutch pawl 53 into an avoided state only by the spring force of the second coil spring 61. This This situation is the same as that described above. When the shift key 49 is in contact with the cam surface 47 of the clutch member 45, an assist force is generated to move the clutch member 45 in the axial direction, and the clutch pawl 53 can be brought down. Here, during the upshifting operation from the deceleration side to the upshift side, since the rotation is directly transmitted to the ring gear 4 3 ′ without passing through the clutch member 45, it is possible to reduce the operating force at the time of shifting. In the growth from -2 9- (Read the precautions on the back of the page first and then fill out this page) This paper size applies the Chinese National Standard (CNS) A4 specification (210X29.7 mm) A 7 B7__ V. Description of the invention (27) The side facing the deceleration side During the deceleration and shifting operation, the rotational force of the clutch member 4 5 is converted into the axial displacement to assist the shifting operation. Therefore, when shifting to the speed-increasing side, even when the pedal is stepped on, it can be easily operated Implementation form 2 Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (Read the precautions on the back before filling out this page) In the above-mentioned Embodiment 1, the first coil spring is installed on the push rod 4 8 60 to reduce the spring force when shifting toward the speed-increasing side, but as shown in FIG. 9, a rod-shaped member may be used to form the push rod 48. In this case, the first coil spring 60 is arranged between the clutch member 45 and the bead nest 31 in a compressed state. In addition, the amount of spring force of the three coil springs 60 to 62 decreases in the order of the second coil spring 61, the third coil spring 62, and the first coil spring 60. Here, if the spring force of the second coil spring 6 1 is smaller than that of the third coil spring 62, when the push rod 4 8 a is moved backward toward the deceleration side, the shift key 4 9 is not pressed even if the shift key 4 9 is pressed. It comes into contact with the clutch member 45, and no assist force is obtained. If the spring force of the third coil spring 62 is smaller than that of the first coil spring 60, when the push rod 4 8a moves backward toward the deceleration side and the second coil spring 61 presses the shift key 49, the third The coil spring 62 is deformed, and only the shift key 4 9 is moved, and the shift key 49 and the clutch member 45 cannot be separated, so the position of the clutch member 45 cannot be determined. In addition, the shift key 49 causes the clutch member 45 to move only toward the deceleration side, and the two members move independently when facing the acceleration side. That is, no retaining ring is provided on the clutch member 45. The total length of the third coil spring 62 is limited to a certain length by a restriction member (not shown). This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) _ 30-Printed by the Employees' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 ___B7 5. Description of the invention (28) Even if the clutch member 45 and the shift key 49 are moved separately, they can be maintained at a certain interval. The other structures are the same as those of the first embodiment described above, so the description is omitted. [Operation on the deceleration-growth side] In such a second embodiment, in the state where the pusher 4 8 a shown in FIG. 9 is not pushed in, as in the first embodiment, the clutch member 4 5 is disposed at the right end. In the decelerating position, the rotation from the driving body 2 2 is decelerated via the decelerating power transmission path, and is transmitted to the hub housing 23. That is, the rotation of the input drive body 2 2 is transmitted to the ring gear 43 through the second one-way clutch 51. In addition, when the shift operation portion 9 is operated to take up the control lever, the link member 7 1 of the two-arm crank 26 is swung, and the push rod 4 8 a is pushed into a section. As a result, the shift key 4 9 is pressed by the push rod 48 and moves to the left of FIG. 9 while rotating 'about the hub axis. The clutch member 4 5 which is urged by the first coil spring 60 to follow the shift key 4 9 And move towards the straight knot position. Then, when the clutch member 45 is disposed in the straight-knot position, the pawl 5 3 of the first one-way clutch 50 that has been avoided by the tapered surface 4 5 d is restored to the spring force of the torsion coil spring 5 5. In the erected state shown by the solid line in FIG. 4, the rotation from the driving body 2 2 is directly transmitted to the hub housing 23 via the direct-coupled power transmission path, as in the first embodiment. When the take-up lever is operated in the straight-knot position and the pusher 4 8 a is further pushed in, the shift key 4 9 continues to move to the left, and the clutch member 4 5 also moves toward the speed-up position. Then, when the clutch member ---- Lid fee ------, 玎 ------ Q (please read the precautions on the back before filling out this page) This paper size applies to Chinese national standards (CNS ) A4 specification (210X297 mm) -31-Printed by the Consumer Sample Cooperative of the Central Sample Rate Bureau of the Ministry of Economic Affairs A7 B7 V. Description of the invention (29) 4 5 Splined external teeth of the clutch member 4 5 when it is placed in the speed increasing position 4 5 c meshes with the spline inner teeth 4 1 b of the gear ring frame 41. When moving toward the speed increasing position, when the clutch member 4 5 is disposed on the spline outer teeth 4 5 c of the clutch member 4 5 and the gear ring frame In the position where the spline inner teeth 41 b of 4 1 are meshed, after the clutch member 45 is in contact with the ring gear 41, the clutch member 45 is moved to the left increasing position. However, when the clutch member 4 When 5 is disposed in the non-engaged position, when the clutch member 45 is in contact with the ring gear 41, the movement of the clutch member 45 to the left is temporarily stopped. However, because of the spring force of the first coil spring 60, The clutch member 4 5 is pressed, so when the clutch member 45 is rotated, the two teeth 4 5 c and 4 1 b become the engaged positions. The clutch member 4 5 moves and the two teeth 4 5 c and 4 1 b mesh with each other. In this state, as in the first embodiment, the rotation transmitted to the driving body 2 2 is transmitted to the hub housing 2 via the speed increasing transmission path. 3. When shifting from the decelerating side to the increasing side in this way, the system is the same as in the first embodiment. 'Because the rotation is directly transmitted between the driving body 2 2 and the ring gear 4 3, the clutch member 4 5 having no spring force can be moved. Therefore, the spring force of the first coil spring 60 for pressing the clutch member 45 can be reduced, and the shift operation can be performed with a slight force. [Auxiliary action on the speed-increasing side] When the speed is increasing When the position release lever of the shift operating portion 9 is released, the second coil spring 61 is used to apply a spring force to the shift key 4 9, and the push lever 4 8 a moves back to the right by a step. Then, the shift key 4 9 presses the clutch. This paper size applies to Chinese National Standard (CNS) A4 specifications (2 丨 0X297 mm) 32 (Please read the notes on the back before filling out this page) -a D printed by the Consumers Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs A7 B7 V. Invention description (30) The clutch member 45 moves the clutch member 45 toward the straight-knot position. However, when the pedal is stepped on, the driving force is transmitted from the clutch member 45 to the gear ring frame 41, so frictional force may The spline inner teeth 4 1 b and the spline outer teeth 45 b may mesh with each other. In this case, as in the first embodiment, an auxiliary force is generated and the clutch member 45 is moved toward the deceleration side. In addition, when acting When the driving force is larger than the predetermined driving force and the shift key 49 is disengaged in the axial direction and the clutch member 45 is not moved, when the driving force of the gear crank 18 reaches the top dead center or the bottom dead center is reduced, the clutch The member 45 is moved by the pressing force of the shift key 49. Therefore, in this Bao Shi Form 2, the gear shift is not performed when a very large driving force is applied, so the gear shift shock is small, and the driving force transmitting parts such as the spline teeth and the one-way clutch are not easily damaged. When the clutch member 45 is moved to the right, the shift key 49 is separated from the cam surface 47 by the third coil spring 62. Therefore, even if the clutch member 45 is rotated, an abnormal sound that comes into contact with the shift key 49 is not generated. When the clutch member 45 is arranged at the direct-coupled position, rotation is transmitted through the direct-coupled transmission path. When the clutch member 45 is disposed in the straight-knot position, when the release lever is operated, the pusher 4 8 a further moves backward, and the shift key 49 presses the clutch member 45. At this time, the tapered surface 4 5 d of the clutch member 45 is in contact with the clutch pawl 53 of the first one-way clutch 50, and the clutch pawl 3 is brought down from the upright state to the avoided state. However, because the clutch pawl 5 3 transmits power from the ring gear 4 3 toward the hub housing 2 3, this paper size applies the Chinese National Standard (CNS) A4 Regulation (210X297 mm) -33 nn tut In m · nn Bm I Bnn ^^^ 1 > ^ 1— One OJ (please read the precautions on the back before filling in this page) A7 ____B7 V. Description of the invention (31) It is difficult to push the spring force of the second coil spring 61 only The clutch pawl 5 3 is set to the avoidance state. This situation is the same as that described above, and also when the shift key 49 is in contact with the cam surface 47 of the clutch member 45, an assisting force is generated to move the clutch member 45 in the axial direction. Here, the same effects as those of the first embodiment can be obtained, and the structure of the pusher 48 can be simplified. However, in this case, since the spring force of the second coil spring 61 arranged in a narrow space is the largest, it is difficult to reduce the spring constant of the second coil spring in order to ensure the amount of deformation. The spring force will increase sharply. Therefore, the operating force required for increasing speed is larger than that in the first embodiment. Embodiment 3 In the foregoing two embodiments, the clutch member is disposed at a deceleration position without being pushed by a push rod. In this embodiment, as shown in FIG. 10, the clutch member 45 is disposed at an increased speed.速 位置。 Speed position. Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (read the precautions on the back before filling this page) In this case, install the second coil spring 6 1 on the putter 4 8. A first coil spring 60 is arranged between the clutch member 45 and the bead nest 31. The spring force of the three coil springs 60 to 62 is reduced in the order of the second coil spring 61, the third coil spring 62, and the first coil spring 60. The reason for setting a different spring force in this case is the same as in the second embodiment. As shown in FIG. 10, an operation hole is formed along the shaft core from the left end of the hub shaft in FIG. 10 (the side where the brake pedal is mounted) toward the center. 2 1 a. A double-arm crank (not shown) is attached to the left end of the hub shaft 21. Moreover, this paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -34-A 7 ___.__ B7_ V. Description of the invention (32) In order to abut the pusher 4 at the vertex of the triangle of the shift key 4 9 a 8. A concave surface 4 9 b is formed at the center of the shift key 4 9 a to be in contact with the push rod 48. Further, as in the second embodiment, the first coil spring 60 is arranged between the clutch member 45 and the bead nest 31 in a compressed state. The other structures are the same as those of the two embodiments described above, so the description is omitted. 〔Assistance of speed increase and deceleration side〕 Printed by the Consumer Cooperative of the Central Bureau of Standards of the Ministry of Economy and Economy (#Read the precautions on the back before filling this page) In this implementation form 2, no pusher 4 8 In the state shown in FIG. 10, when the take-up lever of the shift operation portion 9 is operated at the speed-up position, the shift key 4 9 a is pressed by the push rod 4 8 to overcome the spring force of the first coil spring 60. , The clutch member 45 is moved toward the deceleration side. At this time, when the driving force is not transmitted, the shift key 4 9 a presses the clutch member 45 with the third coil spring 62 to move the clutch member 45 to the straight position. When the driving force is transmitted, the third coil spring 6 2 or the second coil spring 6 1 is deformed while the shift key 4 9 is in contact with the cam surface 4 7, and the clutch member 45 is moved by the aforementioned assisting force. . In addition, the driving force is also transmitted when moving from the direct-knot position to the decelerating position, and it is difficult to avoid the clutch pawl 53. At this time, the clutch member 45 is moved by the assisting force, and the clutch pawl 53 is formed to avoid In the open state, the clutch member 45 is moved toward the deceleration position. In addition, when the driving force is larger than the set driving force, and the shift key 4 9 a is disengaged in the axial direction and the clutch member 45 is not moved, when the gear crank 18 reaches the top dead center or the bottom dead center When the driving force in the vicinity decreases, the clutch member 4 5 is pressed due to the auxiliary force of the shift key 4 9 a. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (2 丨 0X297 mm) _ _ ~ Central Bureau of Standards, Ministry of Economy Printed by employees' consumer cooperatives A7. ___B7 V. Description of Invention (33) Therefore, in the third embodiment, the gear shift is not performed even when a very large driving force is applied, so the gear shift shock is small, and the driving force transmitting parts such as the spline teeth and the one-way clutch are not easily damaged. [Auxiliary action on the deceleration-growth side] When the release lever is operated in the deceleration position, the clutch member 45 is pressed toward the acceleration side by the elastic force of the first coil spring 60, and the pusher 48 is moved to the clutch member. 4 5 Move towards the straight knot position. Then, when the clutch member 45 is disposed at the straight-knot position, the pawl 5 3 of the first one-way clutch 50 formed in the avoided state due to the tapered surface 4 5 d is restored to the figure due to the spring force of the torsion coil spring 55. The upright state shown in 4 in solid line is the same as in the first and second embodiments, and the rotation from the driving body 22 is directly transmitted to the hub housing 23 via a straight-knot power transmission path. When the release lever is operated at the straight-knot position, the clutch member 45 is pressed toward the acceleration side by the elastic force of the first coil spring 60, the push rod 48 is moved, and the clutch member 45 is selectively moved toward the acceleration position. Then, when the clutch member 45 is disposed at the speed-up position, the spline external teeth 4 5 c of the clutch member 45 are engaged with the spline internal teeth 4 1 b of the gear ring carrier 41. When the clutch member 45 is disposed at a position where the spline outer teeth 4 5 c and the spline inner teeth 4 1 b mesh with each other while moving toward the speed increasing position, the clutch member 45 abuts on the ring gear 41. After that, the clutch member 45 is moved toward the left acceleration position. However, when the clutch member 45 is disposed at a position where the external spline tooth 4 5 c and the internal spline tooth 4 1 b are not meshed, the clutch is temporarily stopped when the clutch member 45 is in contact with the ring gear 41 1 ( (Please read the notes on the back before filling out this page)

本紙張尺度適用中國國家標準（CNS > A4規格（210X297公釐） -36- A7 ___ B7 五、發明説明（34 ) 器構件4 5朝向左方的移動。但是，因爲離合器構件4 5 由第1螺旋彈簧6 0彈推力量按壓，所以，當離合器構件 45旋轉並且2個齒45c、45b成爲嚙合位置時，離 合器構件45移動，而且2個齒45c、45b嚙合。在 這種狀態下，與實施形式1和2相同，傳遞到驅動體2 2 的旋轉經由增速傳遞路徑傳遞到輪轂殼體2 3。 這樣從減速側朝向增速側變速時，因爲與實施形式1 以及2相同，是在驅動體2 2與環齒輪4 3之間傳遞直接 旋轉，所以，可以使未彈推力量的離合器構件4 5移動》 因此，用於按壓離合器構件4 5的第1螺旋彈簧6 0的彈 簧力可以小些。而且，因爲可以使較大收容空間內的第2 螺旋彈簧6 1的彈簧力爲最大，所以，可以把整體的彈簧 力設定得小些，行駛中在傳遞驅動力的狀態下，只用很輕 鬆的力即可進行變速操作。 〔其它實施例〕 經濟部中央標準局員工消費合作社印製 (a )在實施形式3中，推桿也可以採用實施形式2 所示的桿狀構件。這種情況，因爲由推桿限制了變速鍵朝 向軸方向端側的移動，所以，也可以沿軸芯來形成貫通槽 。在這樣的實施形式中，因爲作用大的力也會產生輔助力 ，所以任何情況均可進行變速。但是，此時在推桿作用大 的力量.，而且在內纜線也作用大的力量。所以變速衝擊也 變大，動力傳遞構件的強度必須也要設定的高些。 (b )在本實施形式中，爲了安裝倒踩型剎車裝置而 -37- (諳先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X 297公釐） 經濟部中央標隼局員工消費合作杜印製 A7 B7 五、發明説明（35) 設置了防止制動鎖定用的棘爪架，但在沒有安裝倒踩型剎 車裝置的情況則不需要棘爪架。 (C)旋轉傳遞機構並不僅限於行星齒輪機構，也可 以是行星滾子機構。 【發明之效果】 如上所述，本發明的內裝型變速輪轂，當離合器構件 朝向減速側移動時，因爲藉由離合器構件與離合器操作部 的卡合，可使離合器構件的旋轉驅動力轉換爲軸方向位移 而產生輔助力，所以離合器構件可容易移動，既使在行駛 當中也可以用輕鬆的力來移動離合器構件。另外，當朝向 增速側移動時，因爲離合器構件不傳遞動力，所以只要用 很輕微的力即可移動離合器構件。因此，行,駿中即使在作 用驅動力的狀態下，只要用很輕鬆的操作力就能夠進行兩 個方向的變速操作。 【圖面之簡單說明】 圖1是採用本發明一實施形式的自行車的側面圖。 圖2是內裝型變速輪轂的縱剖面結構圖。 圖3是內裝型變速輪轂的減速位置的重要部分的局部 放大圖。 圖4是操作機構的重要部分的斜視圖。 圖5是表示變速鍵和凸輪面關係的模式圖。 圖6是推桿側面部分的斷面圖。 本紙張尺度適用中國國家標準{ CNS ) A4規格（210X297公釐） -38- -----— — ΙΦ II (請先聞讀背面之注意事項再填寫本頁)This paper size applies the Chinese national standard (CNS > A4 size (210X297 mm) -36- A7 ___ B7 V. Description of the invention (34) The device member 4 5 moves to the left. However, because the clutch member 4 5 is 1 coil spring 60 presses with spring force, so when the clutch member 45 rotates and the two teeth 45c, 45b become the meshing position, the clutch member 45 moves, and the two teeth 45c, 45b mesh. In this state, the Embodiments 1 and 2 are the same, and the rotation transmitted to the driving body 2 2 is transmitted to the hub housing 23 via the speed increase transmission path. In this way, when shifting from the deceleration side to the speed increase side, it is the same as in the first and second embodiments. The direct rotation is transmitted between the driving body 22 and the ring gear 4 3, so that the clutch member 45 which has not been pushed can be moved. Therefore, the spring force of the first coil spring 60 for pressing the clutch member 45 can be In addition, because the spring force of the second coil spring 61 in a large accommodation space can be maximized, the overall spring force can be set to be smaller, and only the driving force is transmitted during driving. use [Other embodiments] Printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (a) In the third embodiment, the push rod can also be a rod-shaped member as shown in the second embodiment. This In this case, because the shift key is restricted from moving toward the end in the axial direction by the push rod, a through groove can also be formed along the shaft core. In such an embodiment, a large force can also generate an auxiliary force, so any You can change gears in any situation. However, at this time, a large force is exerted on the putter, and a large force is also exerted on the inner cable. Therefore, the gear shifting shock is also increased, and the strength of the power transmission member must be set higher. (b) In this embodiment, in order to install the reverse brake device, -37- (谙 Please read the precautions on the back before filling out this page) This paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) ) Consumption cooperation by employees of the Central Bureau of Standards of the Ministry of Economic Affairs, printed by A7 B7 V. Description of the invention (35) A pawl frame for preventing brake lock is provided, but when the brake pedal is not installed (C) The rotation transmission mechanism is not limited to the planetary gear mechanism, but may also be a planetary roller mechanism. [Effects of the Invention] As described above, when the clutch member of the built-in transmission hub of the present invention faces When the decelerating side is moved, the clutch driving member is engaged with the clutch operating portion to convert the rotational driving force of the clutch member into an axial displacement to generate an assisting force. Therefore, the clutch member can be easily moved, even during driving. The clutch member is moved with a light force. In addition, when moving toward the acceleration side, the clutch member does not transmit power, so the clutch member can be moved with a slight force. Therefore, even in the state of driving force, Junzhong can perform the gear shifting operation in two directions with a very easy operating force. [Brief Description of the Drawings] FIG. 1 is a side view of a bicycle employing an embodiment of the present invention. FIG. 2 is a longitudinal sectional structural view of a built-in transmission hub. Fig. 3 is a partially enlarged view of an important part of a deceleration position of a built-in variable speed hub. Fig. 4 is a perspective view of an important part of the operation mechanism. FIG. 5 is a schematic diagram showing a relationship between a shift key and a cam surface. Fig. 6 is a sectional view of a side portion of the putter. This paper size applies to Chinese National Standard {CNS) A4 (210X297 mm) -38- -----— — ΙΦ II (Please read the precautions on the back before filling this page)

、ST A7 _________B7 五、發明説明（36 ) 圖7是內裝型變速輪轂的直結位置的重要部分的局部 放大圖。 圖8是內裝型變速輪轂的增速位置的重要部分的局部 放大圖。 _9是實施形式2的重要部分的局部放大圖。 圖1 0是實施形式3的重要部分的局部放大圖。 【圖號說明】 1 :骨架 2 :骨架體 3 :前叉 •4 :車把 5 :驅動部 6 :前輪 7 :後輪 8 :前刹車裝置 經濟部中央標準局員工消費合作社印製 9 :變速操作部 10:內裝型變速輪轂 1 1 :車座 2 1 :驅動體 2 1 b :貫通槽 2 1 c :導引面 2 2 .輪穀軸 2 3 :輪轂殼體 -39 - (讀先閱讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS > A4規格（210X297公釐） 五、發明説明（37 ) A7 B7 2 4 : 行 星 齒 輪 機 構 2 5 : 操 作 機 構 2 6 : 雙 臂 曲 柄 2 7 : 倒 踩 型 剎 車 裝 置 3 2 : 小 齒 輪 4 〇 : 恆 星 齒 輪 4 1 ： 齒 輪 isa 壞 架 4 2 : 行 星 齒 輪 4 3 ： 場 齒 輪 4 5 : 離 合 器 構 件 4 7 : 凸 輪 面 4 7 ( 傾 斜 面 4 8 , 4 8 a 推 桿 4 9 , 4 9 a • 變 速 鍵 5 0、 5 1 、 5 2 ： 第1产 、第 3單 向 離 合器 6 0、 6 1 、 6 2 ： 第1〜第 3螺 旋 彈 簧 6 5 : 操 作 體 6 6 : 動 作 體 -----：---—r0^-- (請先聞讀背面之注意事項再填寫本頁) 訂 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) Α4規格（：21〇X 297公釐） -40-ST A7 _________B7 V. Description of the invention (36) Fig. 7 is a partial enlarged view of the important part of the straight-knot position of the built-in transmission hub. Fig. 8 is a partially enlarged view of an important part of a speed-up position of a built-in type shift hub. _9 is a partially enlarged view of an important part of the second embodiment. FIG. 10 is a partially enlarged view of an important part of the third embodiment. [Illustration of drawing number] 1: Skeleton 2: Skeleton body 3: Front fork • 4: Handlebar 5: Drive unit 6: Front wheel 7: Rear wheel 8: Front brake device Operating section 10: Built-in type shifting hub 1 1: Seat 2 1: Drive body 2 1 b: Through groove 2 1 c: Guide surface 2 2. Rough shaft 2 3: Hub housing -39-(Read first Note on the back page, please fill in this page again) This paper size applies the Chinese national standard (CNS > A4 specification (210X297 mm) V. Description of the invention (37) A7 B7 2 4: Planetary gear mechanism 2 5: Operating mechanism 2 6: Two-arm crank 2 7: Inverted brake device 3 2: Pinion gear 4 〇: Sun gear 4 1: Gear isa frame 4 2: Planetary gear 4 3: Field gear 4 5: Clutch member 4 7: Cam surface 4 7 (Inclined surface 4 8, 4 8 a Push rod 4 9, 4 9 a • Shift keys 5 0, 5 1, 5 2: 1st, 3rd one-way clutch 6 0, 6 1, 6 2: The first to third coil springs 6 5: Operating body 6 6: Actuating body -----: ----- r0 ^-(Please read the precautions on the back before filling this page) Order the Ministry of Economy The paper size printed by the Central Bureau of Standards Consumer Cooperatives applies the Chinese National Standard (CNS) Α4 specification (21 × X 297 mm) -40-

Claims (1)

A8 B8 C8 _ D8 六、申請專利範圍 1、一種自行車用內裝型變速輪轂，係可安裝在自行 車骨架上，並將來自輸入體的動力以經選擇後的預定變速 比傳遞到輸出體的自行車用內裝型變速輪轂，其特徵爲： 該輪轂具有： 能夠固定在前述骨架上的輪轂軸；和 能夠繞著前述輪轂軸外周旋轉並能與前述輸入體連結 •的驅動體；和 在內部具有收容空間，而且能夠繞著前述輪轂軸外周 旋轉，並能與前述輸出體連結之筒狀的從動體；和 一行星齒輪機構，該行星齒輪機構係配置在前述從動 體的收容空間內，並且具有：與前述輪轂軸同一圓心配置 的恆星齒輪、與前述恆星齒輪嚙合的行星齒輪、可自由旋 轉地支撐前述行星齒輪並繞著前述輪轂軸能夠旋轉的齒輪 環架、能夠繞著前述輪轂軸旋轉而且與前述行星齒輪在外 側嚙合的環齒輪，並且可將來自前述驅動體的動力傳遞到 前述從動體；和 經濟部中央標準局員工消費合作社印製 -----— -ο---------訂 (請先閲讀背®·之注意事項再填寫本頁) 配置在前述環齒輪與前述從動體之間，僅能朝單一方 向傳遞動力，而且在能夠傳遞動力的狀態中，可以進行動 力傳遞狀態與動力斷開狀態的切換之第1單向離合器；和 分別配置在前述驅動體與環齒輪之間，以及在前述齒 輪環架與從動體之間，僅可朝單一方向傳遞動力之第2以 及第3單向離合器； 設置在前述輪轂軸上，可自由轉動且在軸方向可以自 由移動，藉由在前述軸方向上的移動，可進行前述驅動體 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -4 / - A8 B8 C8 D8 六、申請專利範圍 (請先閲讀背面之注意事項再填寫本頁) 與齒輪環架之間的連結狀態與脫離狀態的切換，而且，對 前述第1單向離合器進行傳遞動力狀態與動力斷開狀態的 切換之離合器構件； 可令前述離合器構件在前述軸方向上移動，而且與前 述離合器構件卡合，可以將前述離合器構件的旋轉驅動力 轉換爲朝向前述軸方向上的位移之離合器操作部。 2、 如申請專利範圍第1項所述之自行車用內裝型變 速輪轂，其中前述的離合器操作部具有： 設在前述輪轂軸上的導引面、和 藉由沿著前述導引面移動而令前述離合器構件在前述 軸方向上移動的變速鍵、和 用來按壓前述變速鍵的按壓構件； 前述離合器構件具有能與前述變速鍵抵接而且對前述 輪轂軸的軸芯呈傾斜的凸輪面，當前述變速鍵與該凸輪面 抵接時，藉由前述單一方向的旋轉而可將旋轉驅動力轉換 爲朝軸方向上的位移。 經濟部中央標準局員工消費合作社印裝 3、 如申請專利範圍第2項所述之自行車用內裝型變 速輪轂，其中是在前述輪轂軸上形成有貫通前述輪轂軸的 軸芯，且形成有朝向與其中一方向相反側扭轉成螺旋狀的 貫通槽； 前述導引面是形成前述貫通槽之面的一部分，而且前 述導引面相對前述輪轂軸的軸芯傾斜預定的槽傾斜角度。 4、 如申請專利範圍第3項所述之自行車用內裝型變 速輪轂，其中前述的槽傾斜角度是從1 〇度至5 0度的範 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐) -42- A8 B8 C8 D8 六、申請專利範圍 圍。 5、 如申請專利範圍第3或4項所述之自行車用內裝 型變速輪轂，其中前述離合器構件的凸輪面之相對前述輪 轂軸芯的傾斜角度係較之槽傾斜角度大，而且是從2 0度 至7 0度的範圍。 6、 如申請專利範圍第4項所述之自行車用內裝型變 速輪轂，其中前述變速鍵的斷面爲三角形狀，係被配置在 前述貫通槽內，其長度方向係與前述輪轂軸呈交叉地延伸 〇 · 7、 如申請專利範圍第2、3、4或6項所述之自行 車用內裝型變速輪轂，其中又具備第1彈推構件、第2彈 推構件和第3彈推構件； 該第1彈推構件是用於對前述離合器構件朝向前述齒 輪環架側施加彈推力量； 該第2彈推構件是對前述變速鍵朝向前述離合器構件 側施加彈推力量； 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 前述第3彈推構件安裝在前述變速鍵與前述離合器構 件之間’而且當兩個構件抵接時，在前述變速鍵與前述離 合器構件抵接之前’藉由該第3彈推構件的彈性力對兩個 構件在互相分開方向上施加彈推力量。 8、 如申請專利範圍第7項所述之自行車用內裝型變 速輪轂，其中前述第3彈推構件是全長被限定爲一定長度 的螺旋彈簧。 9、 如申請專利範圍第7項所述之自行車用內裝型變 本紙張尺度適用中關家標率（CNS ) A4祕（21〇><297公釐)-43 - 六、申請專利範圍 速輪轂，其中前述的按壓構件係將前述變速鍵朝向前述齒 輪環架側按壓。 10、如申請專利範圍第9項所述之自行車用內裝型 變速輪轂，其中前述的按壓構件是桿狀構件，而前述三個 彈推構件的各自的彈推力量是按照前述第2彈推構件、第 3彈推構件、第1彈推構件的順序變弱。 1 1、如申請專利範圍第9項所述之自行車用內裝型 變速輪轂，其中前述的按壓構件具有： 具有預定長度的桿狀操作體、和 安裝在前述操作體的前端並可在軸方向進行相對移動 的動作體、和 安裝在前述操作體與前述動作體之間，並對兩個構件 朝向互相分開方向施加彈推力量的彈推構件； 前述變速鍵可在軸方向上的兩個方向按壓前述離合器 構件； 前述彈推構件是第1彈推構件； 經濟部中央標準局員工消費合作社印製 (請先閲讀背面之注意事項再填寫本頁) 而三個彈推構件的各自彈推力量是按照前述第丨彈推 構件、第2彈推構件、第3彈推構件的順序變弱。 12、如申請專利範圍第7項所述之自行車用內裝型 變速輪轂，其中前述的按壓構件將前述變速鍵朝向前述離 合器構件側按壓。 1 3、如申請專利範圍第1 2項所述之自行車用內裝 型變速輪轂，其中前述的按壓構.件具有： 具有預定長度的桿狀操作體、和 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -4//· ABCD 六、申請專利範圍 安裝在前述操作體的前端，並可在軸方向上進行相對 移動的動作體、和 安裝在前述操作體與前述動作體之間，並對雨個構件 朝向互相分開方向施加彈推力量的彈推構件； 前述變速鍵可以在軸方向上的兩個方向按壓前述離合 器構件； 前述彈推構件是第2彈推構件； 而三個彈推構件的各自彈推力量是按照第2彈推構件 、第3彈推構'件、第1彈推構件的順序而變弱。' (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局員工消費合作社印製 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） -45"-A8 B8 C8 _ D8 6. Scope of patent application 1. A bicycle built-in type shifting wheel hub, which can be installed on the bicycle frame and transmits the power from the input body to the output body at the selected predetermined gear ratio. A built-in type variable-speed hub is characterized in that the hub includes: a hub shaft that can be fixed to the skeleton; and a driving body that can rotate around the outer periphery of the hub shaft and can be connected to the input body. A receiving space, a cylindrical driven body capable of rotating around the outer periphery of the hub shaft and connected to the output body; and a planetary gear mechanism arranged in the receiving space of the driven body, It also includes a sun gear arranged at the same center as the hub shaft, a planet gear that meshes with the sun gear, a gear ring frame that rotatably supports the planet gear and can rotate around the hub shaft, and can rotate around the hub shaft. A ring gear that rotates and meshes with the planetary gear on the outside, and The force is transmitted to the aforementioned followers; printed with the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs --------- -ο --------- Order Page) The first one-way clutch that is placed between the ring gear and the driven body and can only transmit power in one direction. In the state where power can be transmitted, the power transmission state and the power off state can be switched. ; And second and third one-way clutches which are respectively disposed between the driving body and the ring gear, and between the gear ring carrier and the driven body, and can transmit power in only one direction; and are provided on the hub shaft , Can rotate freely and can move freely in the axial direction. By moving in the aforementioned axial direction, the aforementioned driving body can be carried out. The paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) -4 /-A8 B8 C8 D8 6. Scope of patent application (please read the precautions on the back before filling this page) Switch between the connection state and disengagement state with the gear ring frame, and transmit power to the aforementioned first one-way clutch A clutch member that switches between a state and a power-off state; the clutch member can be moved in the axial direction, and is engaged with the clutch member to convert the rotational driving force of the clutch member into a displacement in the axial direction Clutch operating unit. 2. The built-in type shifting hub for a bicycle according to item 1 of the scope of patent application, wherein the aforementioned clutch operating portion has: a guide surface provided on the hub shaft, and a movement along the guide surface A shift key that moves the clutch member in the axial direction, and a pressing member that presses the shift key; the clutch member has a cam surface that can abut the shift key and incline the shaft core of the hub shaft, When the shift key is in contact with the cam surface, the rotation driving force can be converted into a displacement in the axial direction by the rotation in the single direction. Printed by the Consumers' Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs 3. The built-in type shifting hub for bicycles as described in item 2 of the scope of the patent application, wherein the hub shaft is formed with a shaft core penetrating the hub shaft and formed with The through groove is twisted in a spiral shape toward the side opposite to one of the directions; the guide surface is a part of a surface forming the through groove, and the guide surface is inclined with respect to the hub of the hub shaft by a predetermined groove inclination angle. 4. The built-in type shifting hub for bicycles as described in item 3 of the scope of the patent application, in which the inclination angle of the groove is from 10 to 50 degrees. The paper size of the template is applicable to the Chinese National Standard (CNS) A4 specification (210X297). (Mm) -42- A8 B8 C8 D8 6. The scope of patent application is within the scope. 5. The built-in type shifting hub for a bicycle as described in item 3 or 4 of the scope of the patent application, wherein the inclination angle of the cam surface of the clutch member with respect to the hub axis is larger than that of the groove, and it is from 2 0 degrees to 70 degrees. 6. The built-in type shift hub for a bicycle as described in item 4 of the scope of the patent application, wherein the cross-section of the shift key has a triangular shape and is arranged in the through groove, and its length direction intersects with the hub shaft. Ground extension 0.7. The built-in type shift hub for a bicycle as described in the scope of patent applications No. 2, 3, 4 or 6, which further includes a first ejection member, a second ejection member, and a third ejection member. The first ejection member is used to apply an ejection force to the clutch member toward the gear ring frame side; the second ejection member is used to apply an ejection force to the shift key toward the clutch member side; the central standard of the Ministry of Economic Affairs Printed by the Bureau ’s Consumer Cooperative (please read the precautions on the back before filling out this page) The aforementioned 3rd pusher member is installed between the aforementioned shift key and the aforementioned clutch member 'and when the two members abut, the aforementioned shift key Before contacting the clutch member, a spring force is applied to the two members in a direction separated from each other by the elastic force of the third spring member. 8. The built-in variable speed hub for bicycles as described in item 7 of the scope of the patent application, wherein the aforementioned third spring pushing member is a coil spring whose total length is limited to a certain length. 9. As described in item 7 of the scope of the patent application, the paper size of the built-in variants for bicycles applies the Zhongguanjia standard rate (CNS) A4 secret (21〇 > < 297 mm) -43- In the hub, the pressing member is configured to press the shift key toward the gear ring frame side. 10. The built-in type shifting hub for a bicycle according to item 9 of the scope of the patent application, wherein the aforementioned pressing member is a rod-shaped member, and the respective ejection forces of the three ejection members are in accordance with the aforementioned second ejection. The order of the member, the third ejection member, and the first ejection member is weakened. 1 1. The built-in type shift hub for a bicycle according to item 9 of the scope of patent application, wherein the aforementioned pressing member includes: a rod-shaped operating body having a predetermined length; and a front end of the operating body installed in the shaft direction. An action body that performs relative movement, and an ejection member that is installed between the operation body and the action body and applies an ejection force to the two members in a direction separated from each other; the shift key can be in two directions in the axial direction Press the aforementioned clutch member; the aforementioned ejector member is the first ejector member; printed by the Consumer Cooperative of the Central Standards Bureau of the Ministry of Economic Affairs (please read the precautions on the back before filling out this page) and the respective ejector forces of the three ejector members It is weakened in the order of the aforementioned first pushing member, second pushing member, and third pushing member. 12. The built-in type shift hub for a bicycle according to item 7 of the scope of patent application, wherein the aforementioned pressing member presses the shift key toward the clutch member side. 1 3. The built-in type shifting hub for bicycles as described in item 12 of the scope of patent application, wherein the aforementioned pressing structure has: a rod-shaped operating body having a predetermined length, and the Chinese paper standard (CNS) ) A4 size (210X297mm) -4 // ABCD 6. The scope of the patent application is installed on the front end of the aforementioned operating body and can be moved relative to the axis, and the operating body is installed on the aforementioned operating body and the aforementioned operating body. And a spring pushing member that applies a spring pushing force to the rain members in a direction separated from each other; the shift key can press the clutch member in two directions in the axial direction; the spring pushing member is a second spring pushing member; and The respective ejection forces of the three ejection members are weakened in the order of the second ejection member, the third ejection member, and the first ejection member. '(Please read the precautions on the back before filling out this page) Printed by the Consumer Cooperatives of the Central Bureau of Standards of the Ministry of Economic Affairs This paper size applies to China National Standard (CNS) A4 (210X297 mm) -45 "-