TWM593363U - Automatic continuous variation transmission structural improvement of bicycle - Google Patents
Automatic continuous variation transmission structural improvement of bicycle Download PDFInfo
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Abstract
一種 自行車之自動無段變速結構改良，其構成包含一裝設於自行車之變速機構，用以帶動自行車之鏈條傳動；該變速機構係於一本體外圍等角度樞設若干連動桿，並於該本體樞設之適當處與各該連動桿之間分別設一彈性元件，令各該連動桿承受壓力時能在偏擺過程中產生一維持特定角度位置之彈性力，又各該連動桿外端處樞設有一棘輪，可利用該等棘輪與鏈條作傳動結合；當自行車被踩動時，該變速機構透過棘輪、連動桿及彈性元件的連動搭配，能隨著使用者踩踏的力量自動變速，增進變速的效率與騎車品質。An improvement of the automatic stepless speed change structure of a bicycle, which comprises a speed change mechanism installed on the bicycle to drive the chain transmission of the bicycle; the speed change mechanism is provided with a number of linkage rods pivoted at an equal angle on the periphery of a body and attached to the body An elastic element is respectively arranged between the appropriate position of the pivot and each of the link rods, so that each link rod can generate an elastic force that maintains a specific angular position during the deflection process under pressure, and the outer end of each link rod The pivot is provided with a ratchet, which can be combined with the chain for transmission; when the bicycle is stepped on, the speed change mechanism can automatically change speed according to the stepping force of the user through the linkage of the ratchet, the linkage lever and the elastic element. Efficiency of shifting and cycling quality.
Description
本創作係隸屬一種自行車之創作，特別係指一種針對自行車之變速機構加以改良之創作。This creation belongs to the creation of a kind of bicycle, especially refers to a kind of creation that improves the bicycle's transmission mechanism.
按，自行車上常配置變速系統，以使自行車可根據地形以及使用者需求而將鏈條移動至不同的齒盤，而一般自行車於驅動部分之結構設計，主要係於腳踏板所連結之曲柄處連接設有齒盤，且於自行車後輪對應齒盤之一側設有飛輪，並於齒盤與飛輪間連結設有鍊條，以於使用者踩踏該腳踏板時，能經由曲柄帶動齒盤進行轉動，且利用齒盤經由鍊條帶動飛輪進行轉動，讓自行車之後輪隨著飛輪轉動，以達到驅動自行車行進之功效，同時並能藉由撥動鍊條變換嚙合於不同直徑大小之飛輪上，而可具有變速效果。然而，一般鏈條式的變速系統在操作時，使用者必須依不同的地形或環境手動控制適合的齒盤，不僅不方便，且一般的騎乘者也不太了解什麼環境要變換那種齒盤，故而有所謂的自行車無段變速產生。如大陸新型專利號CN93239049.8『自行車自動無級變速鏈盤』揭露之結構。Press, bicycles are often equipped with a shifting system, so that the bicycle can move the chain to different gears according to the terrain and user needs. The structure of the driving part of the bicycle is mainly located at the crank connected by the foot pedal A sprocket is connected, and a flywheel is provided on one side of the rear sprocket corresponding to the rear wheel of the bicycle, and a chain is connected between the sprocket and the flywheel, so that when the user steps on the foot pedal, the sprocket can be driven through the crank Rotate, and use the gear wheel to drive the flywheel to rotate through the chain, so that the rear wheel of the bicycle rotates with the flywheel to achieve the effect of driving the bicycle to travel. Can have a variable speed effect. However, during operation of a general chain-type shifting system, the user must manually control the suitable chainring according to different terrains or environments. Not only is it inconvenient, but the average rider also does not know much about the environment to change that chainring Therefore, there is a so-called stepless speed change of the bicycle. Such as the structure disclosed by the mainland's new patent number CN93239049.8 "Bike Automatic Continuously Variable Speed Chain".
該先前技術的鏈盤具有驅動輪（１）、鏈輪（２）和曲柄（３），驅動輪（１）與鏈輪（２）平行設置，驅動輪（１）的中心處與曲柄軸（４）固定，該驅動輪（１）上平勻分佈有六條偏離驅動輪徑向的弧形驅動輪滑槽（５），該滑槽（５）設置在驅動輪與鏈輪相對一側的側面上。其次該鏈輪（２）套設在曲柄軸（４）上，鏈輪的輪心與曲柄的軸線相重合，並在鏈輪上均勻分佈有六條沿鏈輪徑向設置的鏈輪滑槽（６），該滑槽（６）設置在鏈輪與驅動輪相對一側的側面上。又在各該鏈輪滑槽內分別設置有滑塊（７）和彈簧（１０），該彈簧（１０）的一端與滑塊（７）的輪心方向端相接觸，另一端固定在鏈輪（２）上；再者各該滑塊（７）的輪緣方向端具有顯露於該鏈輪滑槽（６）外的齒體（８），該齒體（８）位於驅動輪與鏈輪之間的間隙處，該齒體（８）的齒尖指向輪緣，可與自行車的鏈條作傳動嚙合，另外在滑塊（７）朝向驅動輪一側的測面上具有嵌入驅動輪滑槽的圓柱形凸起（９）。習用使用時，主要係利用可沿著鏈輪滑槽（６）滑動的滑塊（７）依使用者踩踏時對鏈盤施力的大小，令位於滑塊的齒體隨滑塊自動向輪心或輪緣方向運動，從而改變鏈盤與車輪的傳動比，實現自動無級變速之目的。然而由於滑塊的運動是沿滑槽進行，其摩擦阻力較大，且易於滑動過程中因承受齒體傳遞的側向力而偏斜，出現不能滑動的卡齿現象，影響鏈盤的正常使用。 有鑑於此，本創作人乃針對前述習用創作問題深入探討，並藉由多年從事相關產業之研發與製造經驗，積極尋求解決之道，經過長期努力之研究與發展，終於成功的開發出本創作『自行車之自動無段變速結構改良』，以改善習用創作之問題。 The prior art sprocket has a driving wheel (1), a sprocket (2) and a crank (3). The driving wheel (1) is arranged parallel to the sprocket (2), and the center of the driving wheel (1) is connected to the crank shaft ( 4) Fixed, the drive wheel (1) is evenly distributed with six arc-shaped drive wheel slide grooves (5) that deviate from the radial direction of the drive wheel. The slide groove (5) is arranged on the side of the drive wheel opposite to the sprocket on. Secondly, the sprocket (2) is sleeved on the crank shaft (4), the wheel center of the sprocket coincides with the axis of the crank, and there are six sprocket chutes arranged along the radial direction of the sprocket evenly distributed on the sprocket ( 6) The chute (6) is provided on the side of the sprocket opposite to the drive wheel. A slide (7) and a spring (10) are respectively arranged in each of the sprocket chute, one end of the spring (10) is in contact with the end of the slide (7) in the direction of the wheel center, and the other end is fixed to the sprocket ( 2) Upper; In addition, each rim direction end of the slider (7) has a tooth body (8) exposed outside the sprocket chute (6), the tooth body (8) is located between the driving wheel and the sprocket At the gap, the tooth tip of the tooth body (8) points to the rim and can be engaged with the bicycle chain. In addition, the measuring surface of the slider (7) facing the drive wheel has a cylindrical shape embedded in the drive wheel chute Raised (9). In practice, the slider (7) that can slide along the sprocket chute (6) is mainly used to force the sprocket when the user steps on it, so that the tooth body located on the slider automatically moves toward the wheel center with the slider Or moving in the direction of the rim, thereby changing the transmission ratio of the chain disc to the wheels, and achieving the purpose of automatic stepless speed change. However, because the movement of the slider is along the chute, its friction resistance is large, and it is easy to deflect due to the side force transmitted by the tooth body during the sliding process, and the phenomenon of jamming that cannot slide can occur, affecting the normal use of the chain disc . In view of this, the author is in-depth discussion of the aforementioned custom creation problems, and through years of research and development and manufacturing experience in related industries, actively seeking solutions, and after long-term efforts in research and development, the author has finally developed the original creation "Improvement of automatic stepless speed change structure of bicycle" to improve the problem of custom creation.
本創作之主要目的，係提供一種『自行車之自動無段變速結構改良』，其係令自行車變速機構的變速操作能在騎車過程中自動執行變速的動作，且變換的過程順暢、穩定，不會有過多的摩擦阻力，以增進變速的效率及簡便性。The main purpose of this creation is to provide an "improvement of the bicycle's automatic stepless speed change structure", which allows the speed change operation of the bicycle speed change mechanism to automatically execute the speed change action during the riding process, and the conversion process is smooth, stable, and not There will be too much frictional resistance to improve the efficiency and simplicity of shifting.
緣於達成上述之創作目的，本創作『自行車之自動無段變速結構改良』，其構成包含一變速機構，該變速機構一端係與自行車之鏈條傳動結合，另端可被自行車之曲柄帶動，主要的特點在於：該變速機構包含一本體、若干連動桿、彈性元件與棘輪，其中該等連動桿係沿著該本體外圍等角度樞設，並於該本體樞設之適當處與各該連動桿之間分別設一彈性元件，各該彈性元件可為扭力彈簧，具有二彈性線部，其第一彈性線部係設於本體適當處，而第二彈性線部設於對應的連動桿適當處；令各該連動桿承受壓力時能在偏擺過程中產生一維持特定角度位置之彈性力，而該等棘輪則分別樞設於各該連動桿端緣處，用以嵌設連結該鏈條，據以當自行車被踩動時，隨著使用者踩踏時力量的大小，該變速機構會透過棘輪、連動桿及彈性元件的連動搭配，能隨著使用者踩踏的力量自動變速，增進變速的效率與騎車品質。 有關本創作所採用之技術、手段及其功效，茲舉一較佳實施例並配合圖式詳細說明於后，相信本創作上述之目的、構造及特徵，當可由之得一深入而具體的瞭解。 In order to achieve the above-mentioned creative purpose, this creation "Improvement of the automatic stepless speed change structure of the bicycle", its composition includes a speed change mechanism, one end of the speed change mechanism is combined with the bicycle chain drive, and the other end can be driven by the bicycle crank, mainly The characteristic is that the speed change mechanism includes a body, a plurality of linkage rods, elastic elements and ratchets, wherein the linkage rods are pivoted at equal angles along the periphery of the body, and are connected with the linkage rods at appropriate locations on the body pivot An elastic element is respectively arranged between the elastic elements, each of which can be a torsion spring, having two elastic thread portions, the first elastic thread portion is located at an appropriate place on the body, and the second elastic thread portion is located at an appropriate place on the corresponding linkage rod So that each of the linkage rods can generate an elastic force that maintains a specific angular position during the deflection process when subjected to pressure, and the ratchets are respectively pivoted at the end edges of the linkage rods for embedding and connecting the chain, According to the fact that when the bicycle is stepped on, the speed change mechanism will automatically match the speed of the user's stepping force, and the efficiency of the speed change will be achieved through the linkage of the ratchet wheel, the link lever and the elastic element. With cycling quality. Regarding the techniques, methods and functions used in this creation, I will give a preferred embodiment and detailed descriptions in conjunction with the drawings. I believe that the above-mentioned purposes, structures and features of this creation can be obtained from an in-depth and specific understanding .
請參閱第一、二圖所示，本創作『自行車之自動無段變速結構改良』包含一裝設於自行車之變速機構（１０），該變速機構（１０）係與鏈條（２０）及連接踏板（３１）的曲柄（３０）配合，用以產生自行車行進的動力；在裝配的應用上，該變速機構（１０）可單獨設於該鏈條（２０）前側與曲柄（３０）結合，也可在該鏈條（２０）的前、後側各裝配一組。而該變速機構（１０）之構成包括一本體（１１）、若干連動桿（１２）、彈性元件（１３）與棘輪（１４），其中：Please refer to the first and second pictures. This creation "Improvement of the automatic stepless speed change structure of bicycle" includes a speed change mechanism (10) installed on the bicycle. The speed change mechanism (10) is connected with the chain (20) and the connecting pedal (31) The crank (30) cooperates to generate the driving force of the bicycle; in the application of assembly, the speed change mechanism (10) can be separately provided on the front side of the chain (20) and combined with the crank (30) The chain (20) is equipped with a group on the front and back sides. The composition of the speed change mechanism (10) includes a body (11), a number of linkage rods (12), elastic elements (13) and ratchets (14), among which:
該本體（１１）係於圓周的中心處組接該曲柄（３０），外圍則沿其圓周等角度形成若干銜接部（１１１），用以樞組該等連動桿（１２），該等銜接部（１１１）的數量至少３－４個，亦可視設計的變化增至６或８個，又該本體（１１）相鄰各該銜接部（１１１）的外緣面適當處分別設有一定位部（１１２），用以供一彈性元件（１３）設置，且相鄰該定位部（１１２）之適當處另設有一第一連結部（１１３）。The body (11) is connected to the crank (30) at the center of the circumference, and the periphery forms a plurality of joints (111) along the circumference at an equal angle to pivotally group the linking rods (12) and the joints The number of (111) is at least 3-4, which can also be increased to 6 or 8 depending on the design change, and the body (11) adjacent to the outer edge of each of the connecting parts (111) is provided with a positioning part at a suitable place ( 112), for providing an elastic element (13), and a first connecting portion (113) is further provided at an appropriate place adjacent to the positioning portion (112).
該等連動桿（１２）係分別樞組於該本體（１１）之銜接部（１１１），各該連動桿（１２）相鄰該銜接部（１１１）之一端適當處設有一第二連結部（１２１），另端內緣具有容置空間，可供樞固一棘輪（１４）。The linking rods (12) are respectively pivotally connected to the connecting portion (111) of the body (11), and each linking rod (12) is provided with a second connecting portion (12) adjacent to one end of the connecting portion (111) 121), the inner edge of the other end has an accommodating space for pivoting a ratchet (14).
該等彈性元件（１３）係分別設於該本體（１１）之銜接部（１１１）與連動桿（１２）之間，各該彈性元件（１３）係設於定位部（１１２）位置，其可為扭力彈簧，具有二彈性線部（１３１、１３２），其第一彈性線部（１３１）係固設於本體（１１）之第一連結部（１１３），而第二彈性線部（１３２）則固設於該連動桿（１２）之第二連結部（１２１），令各該連動桿（１２）承受壓力時，能在偏擺過程中產生一維持特定角度位置之彈性力。又，該等連動桿（１２）之間設有由若干連桿組成的同步機構（圖中未顯示），利用該等連桿的設置，可令該等連動桿（１２）作角度的擺動時能達到同步作動，以增進無段變速的穩定性。The elastic elements (13) are respectively arranged between the connecting portion (111) of the body (11) and the linkage rod (12), and each of the elastic elements (13) is arranged at the position of the positioning portion (112). It is a torsion spring with two elastic thread parts (131, 132), the first elastic thread part (131) is fixed on the first connecting part (113) of the body (11), and the second elastic thread part (132) Then, the second connecting portion (121) fixed on the linking rod (12) can cause an elastic force to maintain a specific angular position during the deflection process when each linking rod (12) is subjected to pressure. In addition, there is a synchronization mechanism (not shown) composed of several connecting rods between the connecting rods (12). With the setting of the connecting rods, the connecting rods (12) can swing at an angle Can achieve synchronous action to improve the stability of stepless speed change.
該等棘輪（１４）係分別利用一樞桿（１４１）樞固於各該連動桿（１２）一端之容置空間內，利用大部份的棘輪（１４）嵌設鏈條（２０）呈傳動連結。The ratchets (14) are respectively fixed in a receiving space at one end of each linking rod (12) by using a pivot rod (141), and most of the ratchets (14) are embedded in a chain (20) to form a drive connection .
據此，藉上述之組成結構，利用該等連動桿（１２）樞組於該本體（１１）外圍，並於本體（１１）與該等連動桿（１２）之間設置彈性元件（１３），透過該等彈性元件（１３）具有阻抗壓力的彈性力，而能在使用者踩踏驅動自行車的鏈條傳動時，該等連動桿（１２）能帶動棘輪（１４）隨著使用者踩踏的力量自動作角度的變換，達到自動無段變速的效果，不須使用者費時的手動控制，增進變速的效率與騎車品質。 綜上所述，本創作在同類產品中實有其極佳之進步實用性，同時遍查國內外關於此類結構之技術資料、文獻中亦未發現有相同的構造存在在先，是以本創作實已具備新型專利要件，爰依法提出申請。 上述實施例，僅用以舉例說明本創作，據以在不離本創作精神之範圍，熟習此項技藝者憑之而作之各種變形、修飾與應用，均應包括於本創作之範疇者。 According to this, with the above-mentioned composition structure, the linking rods (12) are pivotally assembled on the periphery of the body (11), and an elastic element (13) is provided between the body (11) and the linking rods (12), The elastic elements (13) have an elastic force that resists pressure, and when the user steps on the chain drive of the driving bicycle, the connecting rods (12) can drive the ratchet wheel (14) to automatically work with the stepping force of the user The change of angle achieves the effect of automatic stepless speed change, without the need of time-consuming manual control by the user, and improves the efficiency of speed change and the riding quality. In summary, this creation has its excellent progress and practicality in similar products. At the same time, it has not been found that the same structure exists first in the technical information and literature on such structures at home and abroad. The creation has already possessed the requirements for new-type patents. The above-mentioned embodiments are only used to illustrate this creation, and according to the scope of the spirit of this creation, the various modifications, modifications and applications made by those skilled in the art should be included in the scope of this creation.
（１０）:變速機構 （１１）:本體 （１１１）:銜接部 （１１２）:定位部 （１１３）:第一連結部 （１２）:連動桿 （１２１）:第二連結部 （１３）:彈性元件 （１３１）:第一彈性線部 （１３２）:第二彈性線部 （１４）:棘輪 （１４１）:樞桿 （２０）:鏈條 （３０）:曲柄 （３１）:踏板(10): Variable speed mechanism (11): Ontology (111): Interface Department (112): Positioning Department (113): The first link (12): Linkage lever (121): The second link (13): Elastic element (131): The first elastic thread (132): Second elastic thread (14): Ratchet (141): Pivot (20): Chain (30): crank (31): Pedal
第一圖：係本創作之組合平面圖。 第二圖：係本創作變速之實施例圖。 第三圖：係先前技術之正視組合平面圖。 第四圖：係先前技術之上視組合平面圖。 The first picture: the combined plan of this creation. The second picture: This is an example diagram of the creation of a variable speed. The third picture is a front view of the combined plan of the prior art. Figure 4: It is a top plan view of the prior art.
(10):變速機構 (10): Variable speed mechanism
(11):本體 (11): Ontology
(111):銜接部 (111): Interface Department
(112):定位部 (112): Positioning Department
(113):第一連結部 (113): First connection part
(12):連動桿 (12): linkage rod
(121):第二連結部 (121): Second connection part
(13):彈性元件 (13): Elastic element
(131):第一彈性線部 (131): First elastic thread
(132):第二彈性線部 (132): Second elastic thread
(14):棘輪 (14): Ratchet
(141):樞桿 (141): Pivot
(20):鏈條 (20): Chain
(30):曲柄 (30): crank
(31):踏板 (31): Pedal
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW109200605U TWM593363U (en) | 2020-01-15 | 2020-01-15 | Automatic continuous variation transmission structural improvement of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW109200605U TWM593363U (en) | 2020-01-15 | 2020-01-15 | Automatic continuous variation transmission structural improvement of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TWM593363U true TWM593363U (en) | 2020-04-11 |
Family
ID=71133714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW109200605U TWM593363U (en) | 2020-01-15 | 2020-01-15 | Automatic continuous variation transmission structural improvement of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWM593363U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114954772A (en) * | 2022-07-18 | 2022-08-30 | 深圳中华自行车(集团)股份有限公司 | Speed changer and bicycle with same |
-
2020
- 2020-01-15 TW TW109200605U patent/TWM593363U/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114954772A (en) * | 2022-07-18 | 2022-08-30 | 深圳中华自行车(集团)股份有限公司 | Speed changer and bicycle with same |
| CN114954772B (en) * | 2022-07-18 | 2023-11-07 | 深圳中华自行车(集团)股份有限公司 | Transmission and bicycle with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4K | Annulment or lapse of a utility model due to non-payment of fees |