M378179 五、新型說明： 【新型所屬之技術領域】 本創作涉及一種用於變速腳踏車以切換變速檔位的變速器。 【先前技術】 邊速腳踏車的變速機構，大體上包含有設於後輪的階級鏈 輪、鏈條、設於接近後輪的移撥器，以及設於把手的變速器，所 籲述變速器以連接該移撥器，當轉動變速器時可以控制缓線的 收縮或伸長，從而控制移撥器作動而將鏈條撥移到需要的鏈輪檔 位，達到控制車輪轉速比的目的。 目前的腳踏車魏H均設為把手形態或撥_態，使用者可 以藉由轉動把手或撥動撥紐來控制變速檔位；無論是把手或撥钮 形態的變速器，其主要結構都是在一底座内設置一用來捲鏡線 的捲線元件，該捲線元件連接於變速器的把手或撥紐，纔線則穿 ♦出底座所設的洞孔再連接至移撥器；當變速器的把手或撥钮被旋 -轉而帶動纜線相對於底座移動而伸長或收縮時，纔線會和底座之 間產生摩擦，造成纜線本身或底座磨損，降低使用壽命，需要經 常更換變速器，增君使用者的經濟負擔。 【新型内容】 本創作的目的，在於改良習知變速腳轉車之變速器，盆用來 控制移撥器的規線在相對於變速器底座移動時，會和底座產生摩 3 M37B179 擦，以致於造成纜線本身及底座磨耗損壞的問題。 本創作的特徵，係在變速器底座的適當位置設置一具有底摩 擦係收的護管，並使纜線穿過該護管，讓護管位於纜線與底座之 間具有最大受力的位置，使得纜線相對於底座移動時，纜線和底 座之間不會造成磨損，從而延長變速器的使用壽命。 本創作的技術手段，係在魏騎底如部設有-絲捲繞 纜線的躲元件’該絲元件連接—把手而可祕作旋轉，所述 _纜線從底座所設的洞孔穿出而連接至接近設在自行車後輪的移撥 斋，以控制移撥器將鏈條撥至適當檔位的階級鏈輪；該底座内部 «又置適田長度、具有低摩擦係數且可供所述繞線穿過的護管， 使該護管位於、纜線相對於底座移動時的最大受力位置，以降低纜 線的磨耗。 做為較佳的選擇，前述的護管，可以是—種鐵氟龍材料製成 的管體。 • 做為另—健騎擇’前述的護管，可峡-翻膠材料製 •成的管體。 。本創作的特點，係利用具備低摩擦係數的護管將纔線與底座 隔開，使得纜線的最大受力位置僅和護管接觸而不和底座接觸， 因此，可以保護底座不被磨損，若護管磨損時，則可以最經濟的 方式更換護管。 【實施方式】 4 M378179 以下配合圖式及元件符號對本創作的實施方式做更詳細的說 明，俾使熟習該項技藝者在研讀本說明書後能據以實施。 第一圖為顯示本創作應用於變速腳踏車之變速器1的外觀， 其具有一底座11與連接於該底座的把手15，底座u設有一供穿 線3的套管16，纜線3供連接至設在接近觸車後輪的移撥 器（圖中未顯示），藉由往復旋轉把手15可以控制纜線3的伸長或 收縮，以控制移撥器的作動而將鍵條撥移到階、級鍵輪的預期樓位。M378179 V. New description: [New technical field] The present invention relates to a transmission for a shift bicycle to switch gear positions. [Prior Art] The shifting mechanism of the speed bicycle generally includes a class sprocket disposed on the rear wheel, a chain, a shifter disposed adjacent to the rear wheel, and a transmission disposed on the handle, the transmission being referred to to connect the transmission The shifter can control the contraction or elongation of the slow line when the transmission is rotated, thereby controlling the movement of the shifter to shift the chain to the required sprocket position to achieve the purpose of controlling the wheel speed ratio. At present, the bicycles are set to the handle form or the dial state. The user can control the shift position by turning the handle or dialing the dial; the main structure of the shifter in the form of a handle or a button is in one A winding element for winding the mirror wire is arranged in the base, the winding wire component is connected to the handle or the button of the transmission, and the wire is threaded out of the hole provided by the base and then connected to the shifter; when the handle of the transmission is dialed or dialed When the button is rotated-turned to drive the cable to move or contract relative to the base, the wire will be rubbed against the base, causing the cable itself or the base to wear, reducing the service life, and the need to change the transmission frequently. The economic burden. [New content] The purpose of this creation is to improve the transmission of the conventional shifting bicycle. The control line of the basin used to control the shifter will generate a friction with the base when moving relative to the base of the transmission, so that the cable is caused. The wire itself and the base are worn and damaged. The feature of the present invention is that a protective tube having a bottom friction is disposed at a proper position of the transmission base, and the cable is passed through the protective tube so that the protective tube is located at the maximum force between the cable and the base. When the cable is moved relative to the base, there is no wear between the cable and the base, thereby extending the life of the transmission. The technical means of this creation is that the hiding element of the silk-wound cable is provided in the Weiqiu bottom part, and the wire element is connected to the handle and can be secretly rotated. The cable is worn from the hole provided in the base. And connected to the transfer sprocket located near the rear wheel of the bicycle to control the shift sprocket to shift the chain to the class sprocket of the appropriate gear; the interior of the base is again set to the length of the field, has a low coefficient of friction and is available The protective tube through which the winding passes is such that the protective tube is located at the maximum force position when the cable is moved relative to the base to reduce the abrasion of the cable. As a preferred option, the aforementioned protective tube may be a tube made of a Teflon material. • As a different – healthy rider, the aforementioned protective tube can be made of gorge-turned material. . The feature of this creation is to separate the wire from the base by using a protective pipe with a low coefficient of friction, so that the maximum force position of the cable is only in contact with the protective pipe and not in contact with the base, so that the base can be protected from wear. If the protective tube is worn, the protective tube can be replaced in the most economical way. [Embodiment] 4 M378179 The following is a more detailed description of the implementation of the present invention in conjunction with the drawings and the component symbols, so that those skilled in the art can implement the present specification after studying the present specification. The first figure shows the appearance of the transmission 1 of the present invention applied to a shift bicycle, which has a base 11 and a handle 15 connected to the base. The base u is provided with a sleeve 16 for threading 3, and the cable 3 is connected to the set. In the shifter (not shown) close to the rear wheel of the bicycle, the extension or contraction of the cable 3 can be controlled by reciprocating the handle 15 to control the movement of the shifter to shift the key to the step and the level. The expected position of the key wheel.
再參第二圖與第三圖，所述變速器1進-步包括有-底座 1卜-活動設於底座U之中心而可以和底座姉旋轉的轉動件 13 ’轉動件13連接有一捲線元件14，所述底座工的側邊設有一 線槽12，以及設有一連接該線槽^的洞孔120，捲線元件14外 徑具有用來捲繞纜線3的凹環溝，· 3捲繞於凹環溝後齡3 的端即通過線槽12穿過洞孔12〇，底座的外侧壁設有一套管 ^穿過洞孔12G的纜線3即穿出該套管16 ;轉動件13則用來結 >手15 ’虽旋轉把手15時，即同時帶動轉動件η與捲線元 件14旋轉，進而使纜線收縮或伸長。 本創作的特點’是提供—適當長度且具備低摩擦係數的護管 ’ ^官2被設於底座u内並賴線3穿過護管2，以及將護管 二:目對於底座移動時的最錢力位置；所述最大受力位 纜線3 /指纜線3進人線槽12之前㈣曲部位，如此一來，當 僅和底座U移動時’便能利_ 2予以隔開，讓纜線 接觸而不和底座11接觸，達聰護底座Η不受磨損 5 M378179 的目的，而低成本的護管2被磨損時，則可以快速方便地更換。 所述具備低雜係數的辭2，可以是_鐵_稱、塑膠材 料、…等任何一種適當材料製成的管狀體。 ^ 以上所述者僅為用以解釋本創作之較佳實施例，並非企圖且 以對本創作做任何形式上之限制，是以，凡有在相同之創作精神 下所作有關本創作之任何修飾或變更，皆仍應包括在本創作意圖 保護之範嘴。 M378179 【圖式簡單說明】 第一圖為顯示本創作變速器外觀之立體圖。 第二圖為顯示本創作結構之主要元件組合關係之立體分解圖。 第三圖為顯示本創作之護管設在變速器外殼内之位置的平面示意 圖。 【主要元件符號說明】Referring to the second and third figures, the transmission 1 further includes a base member 1 - a rotating member 13 that is disposed at the center of the base U and rotatable with the base cymbal. The side of the base is provided with a wire slot 12, and a hole 120 connecting the wire slot is provided. The outer diameter of the wire winding member 14 has a concave ring groove for winding the cable 3, and the wire is wound around The end of the recessed groove 3 is passed through the hole 12 through the slot 12, and the outer side wall of the base is provided with a sleeve. The cable 3 passing through the hole 12G passes through the sleeve 16; the rotating member 13 When the handle 15 is rotated, the rotating member η and the winding member 14 are simultaneously rotated to contract or elongate the cable. The feature of this creation is to provide a protective tube of appropriate length and low coefficient of friction. The official 2 is placed in the base u and the line 3 passes through the protective tube 2, and the protective tube 2: when moving toward the base The most force position; the maximum force cable 3 / refers to the cable 3 into the front of the trunking 12 (four), so that when only the base U moves, 'will be separated _ 2, The cable is contacted without contact with the base 11, and the Dingli base is not subject to wear 5 M378179, and the low-cost protective tube 2 can be quickly and easily replaced when worn. The word 2 having a low hybrid coefficient may be a tubular body made of any suitable material such as _iron_, plastic material, or the like. The above is only a preferred embodiment for explaining the present creation, and is not intended to be in any way limiting the creation of the creation, so that any modification or related to the creation made under the same creative spirit is Changes should still be included in the protection of this creative intent. M378179 [Simple description of the drawing] The first picture shows a perspective view showing the appearance of the original transmission. The second figure is an exploded perspective view showing the main component combination relationship of the authoring structure. The third figure is a plan view showing the position of the present protective tube in the transmission housing. [Main component symbol description]
1… ••變速器 11··· …底座 12". …線槽 120.. ••…洞孔 13··· …轉動件 14··· …捲線元件 141· •…·凹環溝 15··· …把手 16… …套管 2…· .·護管 3·..· ••瘦線1...••Transmission 11····Base 12"....Line groove 120.. ••... hole 13···...Rotating member 14···...winding element 141·•...·recessed groove 15·· · ...handle 16...sleeve 2...·.·Guard 3·..·••Thin line