M358109 五、新型說明： 【新型所屬之技術領域】 本創作係有關一種腳踏車自動變速結構，尤指一種可供腳踏 車於行造中，依所行進之速度構成自動變速效果之腳踏車自動變 速結構。 【先前技術】 ： 按；習知之腳踏車由於未設有變速之裝置，因此，當腳踏車 - 於不同之行進速度下，騎乘者皆以相同之力量踩踏，故而無法達 # 到省力之效果，是以，可變速之腳踏車被順應時勢成功開發。惟 一般之變速腳踏車，通常係將變速器經由手控調整，以供騎乘者 隨行進速度改變齒輪比，進而達到省力效果，該等習知之變速腳 踏車於操控時，僅能將不同檔位逐一進'檔，卻無法構成退檔動作。 再者，以手控變速畢竟較不符合人性化需求，故而如汽車之腳踏 車自動變速的結構，實為現今科技化時代業者所極思研發。申請 人有鑑於此，乃秉持從事該項業務多年經驗，經不斷研究、實驗， 遂萌生改良，祈使腳踏車得以依所行進之速度構成自動變速效果。 • 【新型内容】 本創作之主要目的，即在提供一種腳踏車自動變速結構，使 腳踏車於行進中，得以依其所行進之速度，構成不同檔位之自動 變速，從而提高腳踏車之實用價值。. 前述之腳踏車自動變速結構，係包含複數個不同檔位之變速 ' 單向齒輪，以及組裝於該變速單向齒輪之不同檔位的離合器及加 速齒輪組，其中，該等離合器係設有一同步制止器，於該同步制 止器設有懸置狀之定位桿，同步制止器内緣則設有複數個不同重 量之配重件。俾當腳踏車於不同速度時，使不同重量之配重件因 離心力向外甩頂持於同步制止器之定位桿，以帶動加速齒輪組之 3 M358109 轉動，從而帶動不同檔位之變速單向齒輪，以構成腳踏車行進中 之自動變速。 前述之腳踏車自動變速結構，其中該離合器之同步制止器， 係於其外緣設有一概呈L狀之長孔，以形成一懸置狀之定位桿。 前述之腳踏車自動變速結構，其中該同步制止器之配重件， 係設有弧狀之塊體’於塊體連接一彈簧，使彈簧另端固定於離合 器之座體，塊體的一端則突伸一定位部，使定位部以插梢固定於 離合器之座體。 前述之腳踏車自動變速結構，其中該加速齒輪組係包含相互 φ 嚅接之從動齒輪、惰齒輪及驅動齒輪》 【實施方式】 請同時參閱第一圖及第二圖，並配合第三圖及第四圖，本創 作主要係包含複數個不同檔位之變速單向齒輪1，以及組裝於該 變速單向齒輪1之不同檔位的離合器2及加速齒輪組3(本實施 例係以組裝於卡式飛輪三段變速為例），其中，該變速單向齒輪1 係包含内齒輪1 1、驅動齒輪1 2及從動齒輪1 3，使該内齒輪 1 1傷接於一飛輪座4，於飛輪座4套置固定一飛輪4 1。並於 • 該從動齒輪13設有複數之螺孔131，以供固定於花鼓主體5; 該等離合器2係設有一同步制止器21，於同步制止器21 外緣設有一概呈L狀之長孔2 1 1，以形成一懸置狀之定位桿2 1 2。同步制止器2 1的内緣，係設有複數個不同重量之配重件 2 2 ’該等配重件2 2 ’係設有弧狀之塊體，於塊體連接一彈簧 ' 2 3 ’使彈簧2 3另端·固定於離合器2之座體，塊體的一端則突 伸一定位部2 4，使定位部2 4以插梢2 5固定於離合器2之座 體。 該等加速齒輪組3，係包含相互嚆接之從動齒輪3 1、惰齒 輪3 2及驅動齒輪3 3 ; 一主軸軸心6 ’係穿設於飛輪座4、離合器2及花鼓主體5 ; M358109 藉由前述構件的組合’構成腳踏車自動變速結構，以供組裝 於腳踏車。俾當腳踏車於不同速度時，使不同檔位離合器2所設 不同重量之配重件2 2 ’因離心力向外甩頂持於同步制止器2 1 之定位桿2 1 2 ’以帶動加迷齒輪組3之從動齒輪3 1，經由嚅 接之惰齒輪3 2及驅動齒輪3 3的傳動，從而帶動不同檔位之變 速單向齒輪1，以構成聊踏車行進中之自動變速》 請參閱第五圖’並配合第四圖，本創作之自動變速結構組裝 於腳踏車後，由於不同檔位離合器2所設之配重件2 2的重量不 同，因此，當腳踏車行進於不同之速度時，因車輪轉動所形成之 φ 離心力亦不相同’使得不同檔位離合器2之配重件2 2不會因相 同之速度向外甩。其中’當腳踏車行進之速度未達預設之速度時， 整個變速結構保持常態，而當腳踏車行進之速度逐漸增加時，因 離心力相對增加’使不同檔位離合器2所設不同重量之配重件2 2，因離心力向外甩頂持於同步制止器2 1之定位桿2 1 2，藉 由疋位桿21 2帶動以帶動加速齒輪組3之轉動，藉由該加速齒 輪組3之從動齒輪3 1、惰齒輪3 2及驅動齒輪3 3的傳動，從 而帶動不同檔位之變速單向齒輸1，以構成腳踏車行進中之自動 變速，如此，腳踏車即可於行進中，自動依所行進之速度’使不 φ 同檔位離合器2帶動不同檔位之變速單向齒輪1’達到自動變速 之效果，而不需如習知之腳踏車變速結構以手控細作之麻填，且 改善習知之腳踏車變速結構無法退檔之缺失。 前述本創作之自動變速結構，依所揭露之三段變速實施例， 腳踏車於行進中，即可自動的依其加速度，達到第一、第二、第 ， 三檔位之變化調整，使騎乘腳踏車更為省力，且於速度遞減時， 由第三、第二、第一檔位逐步退檔’亦或依不斷變化之加迷、減 速’於各檔位來回變化調整，使腳踏車之變速更為方便、快捷， 以提高變速腳踏車之實用價值。 凊參閱第六圖，本創作之另一實施例，係可設為四組之不同 檔位之變速單向齒輪1 (本實施例係以組裝於卡式飛輪四段變速 M358109 為例），以及組裝於該變速單向齒輪1之不同檔位的離合器2及加 速齒輪組3，以構成四段之腳踏車變速結構，同樣的，供組裝於 腳踏車。俾當腳踏車於不同速度時，使不同檔位離合器2所設不 同重量之配重件2 2，因離心力向外甩頂持於同步制止器2 1之 定位桿2 1 2，以帶動加速齒輪組3之轉動，從而帶動不同檔位 之變速單向齒輪1，以構成腳踏車行進中之四檔自動變速。 請參閱第七圖，本創作之又一實施例，係可設為五組之不同 - 檔位之變速單向齒輪1 (本實施例係以組裝於鎖式飛輪三段變速 ‘ 為例）以構成五段之腳踏車變速結構，同樣的，供組裝於腳踏車。 φ 俾當腳踏車於不同速度時，以構成腳踏車行進中之五檔自動變 速，使腳踏車變速結構之應用更為廣泛。 綜上所述，本創作以不同檔位之變速單向齒輪，以及組裝於 該變速單向齒輪之不同檔位的離合器及加速齒輪組，構成腳踏車 自動變速結構，使腳踏車於行進中，得以依其所行進之速度，構 成不同檔位之自動變速，從而提高腳踏車之實用價值。為一實用 之設計，誠屬一倶新穎性之創作，爰依法提出專利申請，祈鈞局 予以審查，早日賜准專利，至感德便。 φ 【圖式簡單說明】 第一圖係本創作之變速單向齒輪平面圖。 第二圖係本創作之離合器及加速齒輪組平面 第三圖係本創作之組裝後平面圖。 第四圖係本創作之整體結構圖。 第五圖係本創作之動作實施例圖。 第六圖係本創作之另一實施例整體結構圖。 第七圖係本創作之又一實施例整體結構圖。 【主要元件符號說明】 1 ·變速單向齒輪 1 1 ·内齒輪 6 M358109 1 2 ·驅動齒輪 1 3 1 ·螺孔 21·同步制止器 212·定位桿 2 3 ·彈簧 2 5 ·插梢 3 1 ·從動齒輪 3 3 ·驅動齒輪 4 1 ·飛輪 6 .主軸軸心 13·從動齒輪 2 ·離合器 211·長孔 2 2 ·配重件 2 4 ·定位部 3 ·加速齒輪組 3 2 ·惰齒輪 4 ·飛輪座 5·花鼓主體M358109 V. New description: [New technical field] This creation is about a bicycle automatic shifting structure, especially a bicycle automatic shifting structure that can be used in the construction of a bicycle and constitutes an automatic shifting effect according to the speed of travel. [Prior Art]: According to the conventional bicycle, since there is no shifting device, when the bicycle is at different traveling speeds, the rider is stepping on with the same force, so it is impossible to achieve the effect of saving effort. Therefore, the variable speed bicycle was successfully developed in response to the situation. However, the general shift bicycle usually adjusts the transmission through manual control, so that the rider can change the gear ratio with the traveling speed, thereby achieving the labor-saving effect. When the conventional shift bicycle is controlled, only the different gears can be entered one by one. 'File, but can not constitute a retreat action. Moreover, the manual-controlled shifting is inferior to the humanized demand. Therefore, the structure of the automatic shifting of the bicycle's bicycle is indeed the research and development of the current technological era. In view of this, the applicant has been adhering to the many years of experience in this business, and has been continuously researching and experimenting, and has improved the car to ensure that the bicycle can automatically shift at the speed at which it travels. • [New content] The main purpose of this creation is to provide a bicycle automatic shifting structure that enables the bicycle to move automatically at different speeds according to the speed at which it travels, thereby improving the practical value of the bicycle. The aforementioned bicycle automatic shifting structure is a shifting one-way gear including a plurality of different gear positions, and a clutch and an acceleration gear set assembled in different gear positions of the shifting one-way gear, wherein the clutches are provided with a synchronization The stopper has a suspension positioning rod in the synchronous stopper, and a plurality of weights of different weights are arranged on the inner edge of the synchronous stopper. When the bicycle is at different speeds, the weights of different weights are lifted by the centrifugal force to the positioning rod of the synchronous stopper to drive the 3 M358109 of the acceleration gear set to drive the variable speed one-way gears of different gear positions. To constitute the automatic shifting of the bicycle. In the above bicycle automatic shifting structure, the synchronizing stopper of the clutch is provided with an L-shaped elongated hole at an outer edge thereof to form a suspended positioning rod. In the above-mentioned automatic bicycle shifting structure, the weight of the synchronous stopper is provided with an arc-shaped block to connect a spring to the block, so that the other end of the spring is fixed to the seat of the clutch, and one end of the block protrudes. A positioning portion is extended to fix the positioning portion to the seat of the clutch with the insertion end. In the above-described bicycle automatic shifting structure, the acceleration gear set includes a driven gear, an idler gear and a drive gear that are coupled to each other φ. [Embodiment] Please refer to the first figure and the second figure at the same time, and cooperate with the third figure and In the fourth figure, the present invention is mainly composed of a plurality of shifting one-way gears 1 of different gear positions, and a clutch 2 and an acceleration gear set 3 assembled in different gear positions of the shifting one-way gear 1 (this embodiment is assembled in The three-stage shifting of the flywheel is taken as an example), wherein the shifting one-way gear 1 includes an internal gear 1 1 , a driving gear 12 and a driven gear 13 , and the internal gear 11 is wounded on a flywheel seat 4 . A flywheel 4 1 is fixed to the flywheel seat 4 . The driven gear 13 is provided with a plurality of screw holes 131 for fixing to the hub body 5; the clutch 2 is provided with a synchronous stopper 21, and an outer edge of the synchronous stopper 21 is provided with an L-shaped shape. The long hole 2 1 1 is formed to form a suspended positioning rod 2 1 2 . The inner edge of the synchronous stopper 2 1 is provided with a plurality of weight members of different weights 2 2 'the weight members 2 2 ' are provided with an arc-shaped block, and a spring ' 2 3 ' is connected to the block The spring 2 3 is fixed to the seat body of the clutch 2, and one end of the block protrudes from the positioning portion 24, and the positioning portion 24 is fixed to the seat body of the clutch 2 by the insertion end 25. The acceleration gear set 3 includes a driven gear 3 1 , an idle gear 3 2 and a drive gear 3 3 that are coupled to each other; a spindle axis 6 ′ is disposed through the flywheel seat 4 , the clutch 2 and the hub body 5 ; M358109 constitutes a bicycle automatic shifting structure by the combination of the aforementioned members for assembly on a bicycle. When the bicycle is at different speeds, the weights of the different gear clutches 2 are set to 2 2 'by the centrifugal force to the top of the synchronization rod 2 1 positioning rod 2 1 2 ' to drive the gears The driven gear 3 1 of the group 3 is driven by the idler gear 3 2 and the driving gear 3 3 to drive the shifting one-way gear 1 of different gear positions to constitute an automatic shifting during the running of the bicycle. In the fifth figure, and in conjunction with the fourth figure, after the automatic shifting structure of the present invention is assembled on the bicycle, since the weights of the weight members 22 provided by the different gear clutches 2 are different, when the bicycle travels at different speeds, The φ centrifugal force formed by the rotation of the wheel is also different, so that the weight members 2 2 of the different gear clutches 2 are not smashed at the same speed. Among them, 'when the speed of the bicycle is not up to the preset speed, the whole shifting structure remains normal, and when the speed of the bicycle is gradually increased, the centrifugal force is relatively increased, so that the different weights of the different gear clutches 2 are set. 2 2, due to the centrifugal force, the yoke is held by the positioning rod 2 1 2 of the synchronous damper 2 1 , and is driven by the boring rod 21 2 to drive the rotation of the acceleration gear set 3, by the follower of the acceleration gear set 3 The transmission of the gear 3 1 , the idle gear 3 2 and the drive gear 3 3 drives the shifting one-way tooth 1 of different gear positions to constitute an automatic shifting of the bicycle during traveling, so that the bicycle can be automatically moved during travel. The speed of travel 'actualizes the shifting one-way gear 1' of the different gears with the same gear clutch 2 to achieve the effect of automatic shifting, without the need for manual control of the bicycle shifting structure as in the conventional bicycle shifting structure, and improving the conventional knowledge The bicycle shifting structure cannot be deactivated. According to the above-mentioned three-speed shifting embodiment, the bicycle can automatically adjust to the first, second, third and third gears according to the three-speed shifting embodiment disclosed, so that the bicycle can be automatically adjusted according to its acceleration. The bicycle is more labor-saving, and when the speed is decreasing, the third, second, and first gears are gradually retracted 'or according to the ever-changing fascination and deceleration', and the shifting is adjusted back and forth in each gear position to make the bicycle shift more. For the convenience and speed, to improve the practical value of the shift bicycle. Referring to the sixth figure, another embodiment of the present invention can be set as four shifting one-way gears 1 of different gear positions (this embodiment is an example assembled with a four-stage variable speed M358109 of a card flywheel), and The clutch 2 and the acceleration gear train 3 assembled in different gear positions of the shifting one-way gear 1 constitute a four-step bicycle shifting structure, and are similarly assembled to a bicycle. When the bicycle is at different speeds, the weight members 2 2 of different weights of the different gear clutches 2 are respectively biased by the centrifugal force to the positioning rod 2 1 2 of the synchronous stopper 2 1 to drive the acceleration gear set. The rotation of 3 drives the shifting one-way gear 1 of different gear positions to constitute the fourth-speed automatic shifting of the bicycle. Referring to the seventh figure, another embodiment of the present invention can be set as five different sets of shifting one-way gears 1 (this embodiment is based on the three-stage shifting of the lock type flywheel). It constitutes a five-segment bicycle shifting structure, and is similarly assembled for a bicycle. φ 俾 When the bicycle is at different speeds, it will automatically accelerate the five-speed travel of the bicycle, making the bicycle shifting structure more widely used. In summary, the present invention uses a variable-speed one-way gear of different gear positions, and a clutch and an acceleration gear set assembled in different gear positions of the variable-speed one-way gear to form an automatic shifting structure of the bicycle, so that the bicycle can be moved while traveling. The speed at which it travels constitutes an automatic shifting of different gear positions, thereby improving the practical value of the bicycle. For a practical design, it is a novelty creation, and the patent application is filed according to law, and the Pray Bureau will review it and grant the patent as soon as possible. φ [Simple description of the drawing] The first picture is the plan view of the variable speed one-way gear of this creation. The second figure is the plane of the clutch and the acceleration gear set of the present creation. The third picture is the assembled plan view of the creation. The fourth picture is the overall structure of the creation. The fifth figure is a diagram of an action example of the present creation. The sixth drawing is an overall structural view of another embodiment of the present creation. The seventh drawing is an overall structural diagram of another embodiment of the present creation. [Main component symbol description] 1 · Variable speed one-way gear 1 1 · Internal gear 6 M358109 1 2 · Drive gear 1 3 1 · Screw hole 21 · Synchronization stopper 212 · Positioning rod 2 3 · Spring 2 5 · Insert 3 1 · Drive gear 3 3 · Drive gear 4 1 · Flywheel 6. Spindle shaft 13 · Drive gear 2 · Clutch 211 · Long hole 2 2 · Counterweight 2 4 · Positioning part 3 · Acceleration gear set 3 2 · Idle Gear 4 · flywheel seat 5 · hub main body