M397350 五、新型說明： 【新型所屬之技術領域】 本創作係一種自行車之腳踏曲柄結構，尤其是指一種 具有可多段式伸縮調整腳踏曲柄長度之設計，俾能調整踏 板之踩踏力矩，以期達到踩踏省力及舒適的效能者。 【先前技術】 按現今自行車之腳踏曲柄臂頂端係分別組設於一鍊齒 輪之一側’且於各該曲柄臂末端處係分別組設有一自行車 踏板，俾可供使用者踩踏踏板，該二踏板並以曲柄臂為旋 動杯而連績迴轉，以帶動該鍊齒輪轉動，進而可驅動鍊條 以可動從動鍊輪轉動；然而習知自行車的曲柄臂長度係為 固定長度者，而其並無法調整該曲柄臂之長度，故其無法 =應場地需要以調整其踩踏力矩之大小，致而無法達到改 艾踩踏力矩之效能且不能節省腳踏力道之情形。 經查本國專利公報第97141192號所揭之「省力自行 車」專利珂案，其主要是在於曲柄軸上裝設有左右兩個凸 曲柄Μ σ，曲柄疋用兩支鋼條所組成， = 能在固定之凸輪上往復運動，“二 力時其長度較長1出力時其長度較短 " ⑮與原本21定曲柄相同；惟該專利前荦於實 際使用時則發現仍在力Τβ π 存在下述之問題點：1.該專利前荦的輩 邊伸縮曲柄結構需要二個凸軸 U早 .J. , ο种—支鋼條及一曲柄滑台箄 構件相互組構而成，而有έ且構灾彳Φβ 4 ' 點，且其組構零件間的連了間費化之缺 專利别案自行車欲達到曲柄 田°哀 呷細功此8守，使用者僅能藉 3 M397350 由踩踏該踏板至適當角度 凸輪運動n w凸輪相對该曲柄滑台作 的功能，足以7曲柄鋼條之長度伸縮並調整力矩大小 行車曲i、.. ·不/、使用方式極為複雜及不便；3由於自 外仍必：=行進中作旋轉運動，因此其輕量化訴求之 /、保有其足夠的強度，以提供行車八 曲柄結構較繁項複雜，而使該曲二構二 仟直=轨重，亚且不夠輕量化及缺乏安全性。M397350 V. New description: [New technical field] This is a kind of bicycle pedal structure, especially a design with multi-stage telescopic adjustment pedal length, which can adjust the pedaling moment of the pedal, with a view to Achieve the ability to step on effort and comfort. [Prior Art] According to the pedals of the bicycles of today's bicycles, the top ends of the crank arms are respectively disposed on one side of a chain gear, and a bicycle pedal is respectively arranged at the end of each of the crank arms, so that the user can step on the pedals. The two pedals rotate with the crank arm as a rotating cup to drive the chain gear to rotate, thereby driving the chain to rotate the movable driven sprocket; however, the length of the crank arm of the bicycle is fixed length, and It is impossible to adjust the length of the crank arm, so it cannot be adjusted according to the needs of the site to adjust the pedaling torque, so that the performance of the pedaling torque can not be improved and the pedaling force cannot be saved. The patent of the "saving bicycle" disclosed in the National Patent Gazette No. 97141192 is mainly composed of two convex cranks σ on the crankshaft and two steel bars on the crankshaft. The reciprocating motion of the fixed cam, "the length of the second force is longer when the output is shorter, and the length is shorter" 15 is the same as the original 21 fixed crank; however, the patent is still in the presence of force Τβ π in the actual use. The problem points mentioned in the following: 1. The front-end telescopic crank structure of the patent requires two convex axes U.J., ο kind-supporting steel bars and a crank-sliding raft member are mutually combined, and there are έ And the construction of the disaster 彳Φβ 4 'point, and the lack of cost between the structural parts of the patent case bicycle to reach the crank field ° mourning the fine 8 Guard, the user can only borrow 3 M397350 by stepping on the The function of the pedal to the appropriate angle cam movement nw cam relative to the crank slide is sufficient for the length of the 7 crank steel to expand and contract and adjust the torque to drive the car i, .. · No, the use is extremely complicated and inconvenient; Still must: = rotate in motion, so its CLAIM quantization /, which retain sufficient strength to provide a structure more complex driving crank eight items complicated, the configuration of the song two thousand two straight track = weight of ethylene and not enough weight and lack of security.
，如：二：：上述習知自行車曲柄結構所存在之問題點 所殷切企盼’亦係相關業者須努力研發突破 有鑑於此，創作人本於多年從事相關產 針對上述之目標，詳加設計舆審二 q付一確具霄用性之本創作。 【新型内容】 行車之腳踏曲柄結構 行車腳踏曲柄結構無 本創作期能藉由腳踏 ’以期達到自行車踩 本創作主要目的係在提供一種自 ，其所欲解決之問題點係針對習知自 法有效調整踏板之踩踏力矩的缺點， 曲柄結構設計以調整踏板之踩踏力矩 踏省力及舒適的效能者。 本創作自行車之腳踏曲柄結構主要係藉由二組伸縮曲 柄分別固組於曲柄臂二端，其中該伸縮曲柄係包含：一非 圓形導桿，該導桿一端係連設於曲柄臂之組接端7而該導 桿之預定位置係軸向分設有多段個旋扣槽，且該旋扣槽内 部係設有一角隅；一套管，該套管之内部係貫設有一非圓 4 M397350 形導孔，該非圓形導孔係可供該非圓形導桿穿伸並導滑其 中，而戎套管外緣預定位置係徑向開設有一連通該非圓形 導孔的組槽，且該組槽係可活動對位於該導桿之多段個旋 扣槽，其中該套管之軸端面對應該組槽預定位置係貫設有 二軸枢孔；一旋扣體，其係藉由一樞軸以樞接組裝於該套 管之組槽的軸枢孔，而令該旋扣體可藉由該枢軸以旋撥擺 動於該組槽内； 藉此創新獨特設計，使本創作結構簡單及組裝容易， 且藉由旋撥該旋扣體，得以使該旋扣體之角端枢擺嵌入或 脫離於該導桿的旋扣槽之角隅，俾使該導桿得以多段性調 整伸縮長度並伸縮定位於該套管内，以使該伸縮曲柄結構 具ί可多段式伸縮調整力矩長度之效能，即腳踏力矩增加 則即省腳踏力道，反之，則增加腳踏力道，故本創作可達 到多段調整踩踏力道的功效者。 【實施方式】 首先請參閱第1圖至5圖所示本創作自行車之腳踏曲 柄結構之較佳實關，本創作之腳踏曲柄結構係由二對稱 ，伸縮曲柄（！、Γ )所組成（因該二伸縮曲柄（】、 ')為相互對稱結構，故僅以—側詳述之），而該伸縮 ^柄（1 )係包括一導桿（11)及一套管（12)，且該伸 =曲柄（㈠係連設於一曲柄軸（2 )端側，其中該曲柄 2 )之中段適處係軸樞於一輔敎管套（3 )，又今曲 柄軸（2 )之預定區段位置係形成有二螺紋段⑼二 螺紋段（21)係可供螺設二螺帽（31),以供固定轴㈣ 5 M397350 套（3 )二端，又該曲柄軸（2 ) 一側端係固接一鍊齒輪 (4 )，該鍊齒輪（4 )之輪緣設有複數鍊齒（41 )，以 供嚙合連動鍊條（其係屬習知技術故不贅述）；其中，Such as: 2:: The above-mentioned problems in the bicycle crank structure of the above-mentioned bicycles are eagerly awaited. Also, the relevant industry must work hard to develop breakthroughs. In view of this, the creators have been engaged in related production for many years, and have designed them in detail. The second test of the second payment is a practical use of the original. [New content] The pedal structure of the driving pedal structure of the driving pedal is not in the creative period. The main purpose of the bicycle pedaling is to provide a kind of self. The problem to be solved is based on the conventional knowledge. The self-method effectively adjusts the disadvantage of the pedaling moment of the pedal, and the crank structure is designed to adjust the pedaling torque of the pedal to save effort and comfort. The pedal structure of the bicycle of the present invention is mainly fixed to the two ends of the crank arm by two sets of telescopic cranks, wherein the telescopic crank comprises: a non-circular guide rod, and one end of the guide rod is connected to the crank arm. The set end 7 and the predetermined position of the guide rod are axially divided into a plurality of segments of the turn-lock groove, and the inside of the turn-lock groove is provided with a corner 隅; a sleeve, the inside of the sleeve is provided with a non-circular 4 M397350-shaped guide hole, the non-circular guide hole is for the non-circular guide rod to extend and guide the slide, and the outer position of the outer edge of the sleeve is radially opened with a group slot connecting the non-circular guide hole. And the set of slots can be movable to the plurality of rotating buckle slots of the guiding rod, wherein the axial end surface of the sleeve corresponds to a predetermined position of the group slot, and a two-axis pivot hole is arranged; The pivot hole of the sleeve of the sleeve is pivotally connected by a pivot shaft, so that the rotary body can be swung by the pivot in the set of slots; thereby creating a unique design and making the creation The structure is simple and easy to assemble, and by rotating the button body, the corner end of the button body is pivoted Or disengaged from the corner 旋 of the guide groove of the guide rod, so that the guide rod can be adjusted in multiple stages and telescopically positioned in the sleeve, so that the telescopic crank structure can adjust the torque length of the multi-stage telescopic adjustment That is, if the pedaling torque is increased, the pedaling force is saved. On the contrary, the pedaling force is increased, so the creation can achieve the effect of adjusting the pedaling force in multiple stages. [Embodiment] First, please refer to Figure 1 to Figure 5 for the better implementation of the pedal structure of the bicycle. The pedal structure of this creation is composed of two symmetrical, telescopic cranks (!, Γ). (Because the two telescopic cranks (], ') are mutually symmetrical structures, only the side is detailed, and the telescopic handle (1) includes a guide rod (11) and a sleeve (12). And the extension=crank ((1) is connected to the end side of a crankshaft (2), wherein the middle portion of the crank 2 is suitable for pivoting to a auxiliary bushing (3), and now the crankshaft (2) The predetermined section position is formed with two thread segments (9). The two thread segments (21) are provided with two nuts (31) for fixing the shaft (4) 5 M397350 sleeves (3), and the crank shaft (2) a sprocket (4) is fixed at one end, and a sprocket (41) is provided on the rim of the sprocket (4) for engaging the interlocking chain (which is not described in the prior art);
,该導桿（11 )，其係屬非圓形桿體構造（於本實施例 係為六邊形斷面形態），且該導桿（11) 一端係連設於曲 柄軸（2 ) -端位置’而該導桿（11)之桿身並軸向分段 設有多個旋扣槽（ln )，且該旋扣槽（ln )内部係設 有-角隅（113 ) ’另該多段個旋扣槽（1U )内側面預 疋位置係嵌設有一磁吸部（112 ); 该套管（12) ’於該套管（12)之内部係軸向貫設a -非圓形導孔（121 ) ’該非圓形導孔（121 )於本實a 例係相對應於該導桿（11)的六邊形斷面，俾使該非圓, 導孔（121 )係恰可供該非圓形導桿（u )穿伸並導滑」 十’而該套管（12)外緣預定位置係徑向開設有一連通; 非圓形導孔（121 )的組槽（丨22 )，且該組栌 2、 係恰可依序活動對位於該導桿（11)之多段個^扣槽（’ 111 )，其中絲官（12 )之轴端面對應該組槽（122 , 預定位置係貫設有-轴樞孔（123 );另於該套管（H 之末彡而位置係松向枢設有一踏板（μ). -旋扣體（13)，其係藉由一樞軸（125 )以樞❿ -軸桎孔（m )後，復樞接組裝於該套管（12)之㈣ 022 )❹樞孔（123 )，而令該旋扣體（13)可藉, 邊枢軸（125 )以旋擺撥動於該組槽（122 )内，且咳j 扣體U3)之-側形成有一角端（ ： )係恰可嵌扣於該導桿（n )之# 4, 内而（丄 仟、u )之紅扣槽（111 )内部的j 6 M397350 隅（113 )，當於嵌扣狀態時（如圖4 )，則使該導桿（ 11 )與該套管02 )互呈軸向限制其拉動狀態，反之，當 於該角端（132 )脫離於該導桿（11 )之旋扣槽（1U ) 的角隅（113 )時，則令該導桿（11 )與該套管（12 )可 互相作伸縮調整長度狀態（如圖5 )，又該旋扣體（13 ) 之一側緣形成有一撥端（131 )，以利於使用者撥動該撥 端（131 )以作動該旋扣體（13)呈樞擺動作； 承上述，另該旋扣體（13 )之一側端面係形成有一磁 吸件（133 )，其中該磁吸件（133 )係對位於該導桿（ 11)之旋扣槽（111 )内部的磁吸部（112 )，俾使該旋 扣體（13 )肷扣於該導桿（11 )之旋扣槽（111 )内部時 ’藉由其磁吸件（133 )以吸附於磁吸部（112 )定位， 並防止該旋扣體（13 )不當旋擺鬆脫者； 據此，本創作之伸縮曲柄（丨）結構除了結構簡單的 優=外’且藉由旋撥該旋扣體（13)，而使其角端（132 )得以柩擺嵌入或脫離於該導桿（u )的旋扣槽（HI ) :::(U3)，俾進一步使該導桿（11)得：多段性調 了長度並伸縮定位於該套管（12)内’俾使該伸縮曲柄（ )結構具有可多段式伸縮調整力矩長度之效能，亦即並 力則節省腳踏力冑，反之則增加腳踏力道： 創作具有可調整踩踏力道的使用功效。 个 ，上所述，本創作在同類產品中實有其極佳之進步性 ，问衧遍查國内外關於此類結構之技 發現有相同的構造，异以，太文獻中亦未 ，著UΪ 作貫已具備新型專利要件 。“申請。上述實施例’僅用以舉例說明本創作 7 U397^° ，據以在不離本創作精神 作之各種變形、修飾與應 之範圍’熟習此項技藝者憑之而 用’均應包括於本創作之範疇者 【圖式簡單說明】 ··係本創作自行車之腳踏曲柄結構組合立體圖。 :β .係本創作自行車之腳踏曲柄結構立體分解圖。 ，圖：係本創作自行車之腳踏曲柄結構之剖視圖。 弟4圖：係^ 3圖沿χ_χ線之剖視圖，其係顯示該旋扣 體嵌扣於該旋扣槽狀態。 第5圖：係第3圖沿γ_γ線之剖視圖，其係顯示該旋扣 體脫離於該旋扣槽狀態。 伸縮曲柄（1’） 螺紋段（21 ) 鍊齒輪（4 ) 導桿（11 ) 旋扣槽（111 ) 角隅（113 ) 套管（12’） 組槽（122 ) 樞軸（125 ) 撥端（131 ) 【主要元件符號說明】 伸縮曲柄（1 ) 曲柄轴（2 ) 軸毅管套（3 ) 螺帽（31 ) 鍊齒（41 ) 導桿（11’） 磁吸部（112 ) 套管（12 ) 導孔（121 ) 軸枢孔（123 ) 旋扣體（13 ) 8 M397350 角端（ 軸樞孔 踏板（ 132 ) 磁吸件（133 (134 ) 踏板（14 ) 14，）The guide rod (11) is a non-circular rod structure (in the embodiment, a hexagonal cross-sectional shape), and one end of the guide rod (11) is connected to the crank shaft (2) - The end position 'and the shaft of the guide rod (11) is axially segmented with a plurality of screw grooves (ln), and the inside of the screw groove (ln) is provided with a corner 隅 (113) A magnetic portion (112) is embedded in the inner side of the multi-segment screw groove (1U); the sleeve (12)' is axially disposed a-non-circular inside the sleeve (12) The guide hole (121) 'the non-circular guide hole (121) corresponds to the hexagonal section of the guide rod (11) in the present example, so that the non-circular guide hole (121) is available The non-circular guide rod (u) penetrates and guides the slide "ten" and the outer edge of the sleeve (12) has a predetermined position in the radial direction; a group groove of the non-circular guide hole (121) (丨22) And the group 栌2, the system can be sequentially operated to the plurality of slots ('111) located in the guide rod (11), wherein the axial end faces of the silk guides (12) correspond to the group slots (122, predetermined The position is provided with a shaft pivot hole (123); and the sleeve is at the end of the H The pedal is provided with a pedal (μ). The rotary body (13) is pivoted by a pivot (125) and then pivoted to the sleeve. (12) (4) 022) The pivot hole (123), so that the turntable body (13) can be borrowed, the side pivot (125) is swung in the set of slots (122), and the cuckle button body The side of U3) is formed with a corner end ( : ) that can be snapped into the # 4 of the guide rod (n ), and j 6 M397350 inside the red buckle groove (111 ) of (丄仟, u ) 113), when in the buckle state (as shown in FIG. 4), the guide rod (11) and the sleeve 02) are axially restricted from each other to be pulled, and vice versa, when the angle end (132) is disengaged from When the angle 隅 (113) of the screw groove (1U) of the guide rod (11) is such that the guide rod (11) and the sleeve (12) can be mutually adjusted to each other (as shown in Fig. 5), One of the side edges of the buckle body (13) is formed with a dial end (131) for facilitating the user to move the dial end (131) to actuate the swing body (13) to pivot; One side end surface of the rotary body (13) is formed with a magnetic member (133), wherein the magnetic attraction The piece (133) is a pair of magnetic parts (112) located inside the turn-lock groove (111) of the guide rod (11), and the turn-on body (13) is buckled on the guide rod (11) The inside of the groove (111) is positioned by being attracted to the magnetic attraction portion (112) by the magnetic member (133), and the rotary body (13) is prevented from being improperly screwed loose; The crank structure is simpler than the simple structure, and by rotating the button body (13), the corner end (132) can be inserted or disengaged from the screw groove of the guide rod (u). (HI):::(U3), further obtaining the guide rod (11): multi-segmented length and telescopically positioned in the sleeve (12) '俾 makes the telescopic crank ( ) structure multi-stage The effect of telescopic adjustment of the length of the torque, that is, the force to save the pedaling force, and vice versa, the pedaling force: the creation of an adjustable pedaling force. As mentioned above, this creation has its excellent progress in similar products. When asked about the domestic and international techniques for such structures, the same structure is found. The company has new patent requirements. "Application. The above-mentioned embodiment" is only used to illustrate the creation of this U 7 U397 ^ °, according to the scope of the various changes, modifications and should not be used in the spirit of this creation, 'the skilled person should use it' should include In the scope of this creation [simplified description of the drawings] ····························································································· A cross-sectional view of the pedal crank structure. Figure 4: A cross-sectional view of the ^ χ line along the χ χ line, showing the state in which the rotator body is engaged in the shackle groove. Fig. 5: Section 3 of the γ_γ line along the third figure , which shows that the screw body is out of the state of the screw groove. Telescopic crank (1') Thread segment (21) sprocket (4) Guide rod (11) Threading groove (111) Corner 隅 (113) Casing (12') Group groove (122) Pivot (125) Dial end (131) [Main component symbol description] Telescopic crank (1) Crankshaft (2) Shaft pipe sleeve (3) Nut (31) Chain teeth ( 41) Guide rod (11') Magnetic part (112) Casing (12) Guide hole (121) Shaft Hole (123) spinner member (13) 8 M397350 angle end (pedal shaft pivot hole (132) magnetic member (133 (134) a pedal (14) 14)