TWI656061B - Bicycle automatic automatic transmission - Google Patents
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Abstract
本創作係自行車的自動無段變速裝置，其包含一EXTROID CVT、一離心組件及彈性元件；EXTROID CVT包含一動力輸入碟、一動力輸出碟、兩轉子及兩傳動碟，離心組件連接及帶動兩轉子，當自行車車輪轉速越高時，離心組件的轉速也會越高，而離心組件在離心力的作用下會自動轉動兩轉子來逐漸降低動力輸入碟及動力輸出碟的減速比；而當車輪轉速降低時，彈性元件會推動離心組件以反向轉動該兩轉子，以提升動力輸入碟及動力輸出碟的減速比；本創作藉此透過車輪轉動時產生的離心力來自動控制轉子的轉動並進而自動調整減速比，以達到自動無段變速的創作目的。The present invention is an automatic stepless speed change device for bicycles, which comprises an EXTROID CVT, a centrifugal assembly and an elastic component; the EXTROID CVT comprises a power input disc, a power output disc, two rotors and two drive discs, a centrifugal assembly connection and two driving Rotor, when the speed of the bicycle wheel is higher, the rotation speed of the centrifugal assembly will be higher, and the centrifugal assembly will automatically rotate the two rotors under the action of centrifugal force to gradually reduce the reduction ratio of the power input disc and the power output disc; When lowered, the elastic member pushes the centrifugal assembly to reversely rotate the two rotors to increase the reduction ratio of the power input disc and the power output disc; the present invention automatically controls the rotation of the rotor through the centrifugal force generated when the wheel rotates, and then automatically Adjust the reduction ratio to achieve the purpose of automatic stepless speed change.
Description
本創作係涉及一種自行車的變速裝置，尤指一種利用EXTROID CVT的自動無段變速裝置。The present invention relates to a bicycle shifting device, and more particularly to an automatic stepless shifting device using an EXTROID CVT.
EXTROID變速器(EXTROID CVT)是一種常見於汽車或自行車等交通工具的無段變速裝置，其包含有一動力輸入碟、一動力輸出碟、兩轉子及兩傳動碟；動力輸入碟及動力輸出碟相互間隔且同軸心地設置，動力輸入碟及動力輸出碟朝向彼此分別突出有一圓錐部，兩轉子位於動力輸入碟及動力輸出碟之間，兩傳動碟分別可轉動地設於該兩轉子上，各傳動碟的相對兩側分別貼靠於動力輸入碟及動力輸出碟的圓錐面，藉此當動力輸入碟轉動時，動力輸入碟帶動傳動碟轉動，而傳動碟再帶動動力輸出碟轉動；而藉由讓傳動碟的兩側貼靠於動力輸入碟及動力輸出碟的圓錐面的不同位置處，便可達到加速或減速的功效角度；而欲改變轉速比時，僅要轉動轉子便可改變傳動碟的角度，進而改變傳動碟的兩側貼靠於動力輸入碟及動力輸出碟的圓錐面的位置，如此便可改變轉速比。The EXTROID transmission (EXTROID CVT) is a stepless transmission commonly used in vehicles such as automobiles or bicycles. It includes a power input disc, a power output disc, two rotors and two drive discs. The power input disc and the power output disc are spaced apart from each other. And the coaxial input is arranged, the power input disc and the power output disc respectively protrude toward each other with a conical portion, the two rotors are located between the power input disc and the power output disc, and the two drive discs are respectively rotatably disposed on the two rotors, and the drive discs are respectively The opposite sides respectively abut the power input disc and the conical surface of the power output disc, whereby when the power input disc rotates, the power input disc drives the drive disc to rotate, and the drive disc drives the power output disc to rotate; The two sides of the drive disc are placed at different positions of the power input disc and the conical surface of the power output disc to achieve the acceleration or deceleration effect angle; when changing the speed ratio, only the rotor can be rotated to change the drive disc. Angle, which in turn changes the position of the drive disc against the conical surface of the power input disc and the power output disc, so that the speed can be changed .
然而，現有技術的EXTROID CVT欲改變轉子來調整轉速比時，係透過手動操作的方式來轉動該兩轉子，而無法達到自動變換的功效，如此在操作上有所不便，因此仍有待加以改良。However, when the prior art EXTROID CVT wants to change the rotor to adjust the speed ratio, the two rotors are rotated by manual operation, and the effect of automatic conversion cannot be achieved, which is inconvenient in operation, and therefore needs to be improved.
有鑑於前述之現有技術的缺點及不足，本創作提供一種自行車無段自動變速裝置，以可在EXTROID CVT的架構上達到自動變速的目的。In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a bicycle-less automatic transmission device for achieving automatic shifting in the structure of the EXTROID CVT.
為達到上述的創作目的，本創作所採用的技術手段為設計一種自行車無段自動變速裝置，其中包含： 一殼體； 一中心軸，其貫穿該殼體； 一動力輸入碟，其可轉動地設於該殼體內，且可轉動地套設於該中心軸外，該動力輸入碟的一側面突出有一圓錐部； 一動力輸出碟，其可轉動地設於該殼體內，且可轉動地套設於該中心軸外，該動力輸出碟的一側面突出有一圓錐部，該動力輸入碟的該圓錐部及該動力輸出碟的該圓錐部相向設置； 兩轉子，其可轉動地設於該殼體內，且各該轉子與該殼體之間的樞轉軸與該中心軸相互垂直； 兩傳動碟，其分別可轉動地設於該兩轉子上，且各該傳動碟與該轉子之間的樞轉軸與該轉子與該殼體之間的該樞轉軸相互垂直；各該傳動碟的相對兩側分別貼靠於該動力輸入碟的該圓錐部及該動力輸出碟的該圓錐部；當該動力輸入碟轉動時，該動力輸入碟透過該傳動碟轉動該動力輸出碟； 一離心組件，其套設於該中心軸外，且連接及帶動該兩轉子，當該離心組件相對該中心軸轉動時，該離心組件會帶動該兩轉子轉動以降低該動力輸入碟及該動力輸出碟的減速比； 一彈性元件，其連接及推動該離心組件，並使該離心組件帶動該兩轉子轉動以提升該動力輸入碟及該動力輸出碟的減速比； 一逆轉組件，其連接於該動力輸入碟或該動力輸出碟，該逆轉組件可將輸入於該逆轉組件的轉動轉換成相反方向的轉動後再輸出。In order to achieve the above-mentioned creative purpose, the technical means adopted in the present invention is to design a bicycle automatic transmission without a segment, comprising: a casing; a central shaft penetrating the casing; and a power input disc rotatably The utility model is disposed in the housing and rotatably sleeved outside the central shaft, a side of the power input disc protrudes from a conical portion; a power output disc rotatably disposed in the housing and rotatably sleeved Provided outside the central shaft, a side of the power output disc protrudes from a conical portion, the conical portion of the power input disc and the conical portion of the power output disc are disposed opposite to each other; and two rotors rotatably disposed on the shell a pivot shaft between the rotor and the housing is perpendicular to the central shaft; two drive discs are respectively rotatably disposed on the two rotors, and a pivot between each of the drive discs and the rotor The pivot shaft and the pivot axis between the rotor and the housing are perpendicular to each other; opposite sides of each of the drive discs respectively abut the conical portion of the power input disc and the conical portion of the power output disc; lose When the disc rotates, the power input disc rotates the power output disc through the drive disc; a centrifugal assembly is sleeved outside the central shaft, and connects and drives the two rotors, when the centrifugal assembly rotates relative to the central axis, The centrifugal assembly drives the two rotors to reduce the reduction ratio of the power input disc and the power output disc; an elastic member that connects and pushes the centrifugal assembly, and causes the centrifugal assembly to rotate the two rotors to enhance the power Inputting the reduction ratio of the disc and the power output disc; a reversing assembly connected to the power input disc or the power output disc, the reversing assembly converting the rotation input to the reverse assembly into the opposite direction of rotation and then outputting.
本創作之優點在於，藉由進一步設置一離心組件來連接該兩轉子，藉此當自行車的車輪轉速越高時，離心組件相對中心軸的轉速也會越高，而離心組件會自動轉動該兩轉子來逐漸降低減速比，如此一來使用者踩踏踏板所需的力逐漸增加，而車輪轉速也會逐漸增快；而當車輪轉速降低時，彈性元件會推動離心組件以反向轉動該兩轉子，使該兩轉子逆向轉動以提升動力輸入碟及動力輸出碟的減速比，如此一來在車輪轉速低或甚至剛起步時，使用者僅需輕鬆地踩踏踏板便可帶動車輪轉動；本創作藉此透過車輪轉動時產生的離心力來自動控制轉子的轉動並進而自動調整減速比，藉此達到自動無段變速的創作目的。The advantage of the present invention is that the two rotors are connected by further providing a centrifugal assembly, whereby the higher the rotational speed of the bicycle, the higher the rotational speed of the centrifugal assembly relative to the central axis, and the centrifugal assembly automatically rotates the two The rotor gradually reduces the reduction ratio, so that the force required by the user to step on the pedal is gradually increased, and the wheel speed is gradually increased; and when the wheel speed is lowered, the elastic member pushes the centrifugal assembly to rotate the two rotors in the opposite direction. The two rotors are reversely rotated to increase the reduction ratio of the power input disc and the power output disc, so that when the wheel speed is low or even just starting, the user only needs to easily step on the pedal to drive the wheel to rotate; This automatically controls the rotation of the rotor through the centrifugal force generated when the wheel rotates, and then automatically adjusts the reduction ratio, thereby achieving the purpose of automatic stepless speed change.
進一步而言，所述之自行車無段自動變速裝置，其中該離心組件包含有一位移盤、複數滾柱及一連動臂；該位移盤可轉動地套設於該中心軸外，且可沿該中心軸移動，該位移盤被該動力輸入碟或該動力輸出碟帶動而轉動，該位移盤的一側面凹設成形有一圓錐狀的容置空間，該圓錐狀的該容置空間以該中心軸的位置為中心；該圓錐狀的該容置空間的內壁面上設有複數徑向軌道，該等軌道於該圓錐狀的該內壁面上以該中心軸的位置為中心成放射狀地延伸；該等滾柱位於該圓錐狀的該容置空間中，且可沿著該等徑向軌道滑動地貼靠於該等徑向軌道中，該位移盤透過該等徑向軌道帶動該等滾柱跟著該位移盤轉動；該彈性元件朝向該等滾柱地推抵於該位移盤，使該等滾柱沿著該等徑向軌道朝向該中心軸移動；該連動臂連接該位移盤及該兩轉子，當該位移盤相對該中心軸移動時，該位移盤帶動該連動臂跟著移動，而該連動臂則連帶轉動該兩轉子。Further, the bicycle stepless automatic transmission device, wherein the centrifugal assembly comprises a displacement plate, a plurality of rollers and a linkage arm; the displacement plate is rotatably sleeved outside the central axis and along the center The shaft is moved, and the displacement plate is rotated by the power input disc or the power output disc. One side of the displacement disc is concavely formed with a conical receiving space, and the conical housing space is The position is centered; the conical inner wall surface of the accommodating space is provided with a plurality of radial rails, and the rails extend radially around the position of the central axis on the conical inner wall surface; The rollers are located in the conical housing space and slidably abut the radial rails along the radial rails, and the displacement discs drive the rollers to follow the radial rails. The displacement plate rotates; the elastic member pushes against the displacement plate toward the rollers to move the rollers along the radial tracks toward the central axis; the linkage arm connects the displacement plate and the two rotors When the displacement phase When the central axis of movement, the displacement of the disk drive along with movement of the linkage arm, the linkage arm and the joint rotation of the two rotors.
進一步而言，所述之自行車無段自動變速裝置，其中該位移盤相鄰於該殼體，且該等滾柱的相對兩側分別貼靠於該位移盤及該殼體的外壁面。Further, the bicycle automatic transmission is provided, wherein the displacement plate is adjacent to the housing, and opposite sides of the rollers abut against the displacement plate and the outer wall surface of the housing.
進一步而言，所述之自行車無段自動變速裝置，其中該連動臂上設有一缺口，該位移盤徑向上的周緣可轉動地設於該缺口中。Further, the bicycle automatic transmission without a segment, wherein the linkage arm is provided with a notch, and a radial periphery of the displacement plate is rotatably disposed in the notch.
進一步而言，所述之自行車無段自動變速裝置，其中各該轉子的外壁面上環繞設有一環齒部；該連動臂上設有兩齒條部，該兩齒條部延伸的方向與該中心軸平行，該兩齒條部分別嚙合於該兩轉子的該環齒部。Further, the bicycle automatic transmission is provided with a ring tooth portion on an outer wall surface of each of the rotors; the rack arm is provided with two rack portions, and the two rack portions extend in a direction The central axes are parallel, and the two rack portions are respectively engaged with the ring teeth of the two rotors.
進一步而言，所述之自行車無段自動變速裝置，其中該連動臂上設有一導引孔，該導引孔為一長孔，且其延伸方向與該中心軸平行；該殼體上設有一導引柱，該導引柱穿設於該連動臂的該導引孔中。Further, the bicycle automatic transmission without a segment, wherein the linkage arm is provided with a guiding hole, the guiding hole is a long hole, and the extending direction thereof is parallel to the central axis; the housing is provided with a a guiding post, the guiding column is disposed in the guiding hole of the linking arm.
進一步而言，所述之自行車無段自動變速裝置，其中該逆轉組件為一行星齒輪組，其包含有一太陽齒輪、至少一行星齒輪、一行星支架及一內齒輪；該行星支架固設於該殼體上；該至少一行星齒輪可自轉地設於該行星支架上；該內齒輪及該太陽齒輪的其中之一用以輸入該逆轉組件的轉動，該內齒輪及該太陽齒輪的另一用以輸出該逆轉組件的轉動。Further, the bicycle stepless automatic transmission device, wherein the reversing assembly is a planetary gear set, comprising a sun gear, at least one planetary gear, a planet carrier and an internal gear; the planet carrier is fixed on the The at least one planet gear is rotatably disposed on the planet carrier; one of the internal gear and the sun gear is used for inputting rotation of the reverse assembly, and the internal gear and the sun gear are used for another To output the rotation of the reversing component.
進一步而言，所述之自行車無段自動變速裝置，其中進一步包含有一輪轂，其包覆於該殼體、該動力輸入碟、該動力輸出碟、該兩轉子、該兩傳動碟、該離心組件、該彈性元件及該逆轉組件外，該中心軸貫穿該輪轂；該輪轂連接該動力輸出碟，且可被該動力輸出碟帶動而轉動。Further, the bicycle automatic transmission without a segment further includes a hub covering the housing, the power input disc, the power output disc, the two rotors, the two drive discs, and the centrifugal assembly The central shaft extends through the hub, and the hub is coupled to the power output disc and is rotatable by the power output disc.
進一步而言，所述之自行車無段自動變速裝置，其中該彈性元件為一壓縮彈簧，其兩端分別推抵於該輪轂的內壁面及該離心組件。Further, the bicycle stepless automatic transmission device, wherein the elastic member is a compression spring, the two ends of which are respectively pushed against the inner wall surface of the hub and the centrifugal assembly.
進一步而言，所述之自行車無段自動變速裝置，其中該離心組件與該動力輸出碟相連接，且被該動力輸出碟帶動而轉動。Further, the bicycle stepless automatic transmission device is characterized in that the centrifugal assembly is connected to the power output disc and is rotated by the power output disc.
以下配合圖式及本創作之較佳實施例，進一步闡述本創作為達成預定創作目的所採取的技術手段。The technical means adopted by the present invention for achieving the intended purpose of creation are further explained below in conjunction with the drawings and the preferred embodiment of the present invention.
請參閱圖1及圖3所示，本創作之自行車無段自動變速裝置包含一殼體10、一中心軸20、一動力輸入碟31、一動力輸出碟32、兩轉子41、兩傳動碟42、一離心組件50、一彈性元件60、一輸入齒盤71、一輪轂72及一逆轉組件80。Referring to FIG. 1 and FIG. 3 , the bicycle automatic transmission without a segment includes a housing 10 , a central shaft 20 , a power input disc 31 , a power output disc 32 , two rotors 41 , and two drive discs 42 . A centrifugal assembly 50, an elastic member 60, an input sprocket 71, a hub 72 and a reversing assembly 80.
前述之殼體10在本實施例中為矩形，但其形狀不以此為限；殼體10相對於整台自行車是一固定的元件而不隨其他元件轉動。The aforementioned housing 10 is rectangular in this embodiment, but its shape is not limited thereto; the housing 10 is a fixed component with respect to the entire bicycle and does not rotate with other components.
前述之中心軸20貫穿殼體10，中心軸20即為自行車後輪的輪軸，因此中心軸20同樣相對於整台自行車是一固定的元件而不隨其他元件轉動。The aforementioned central shaft 20 extends through the housing 10, which is the axle of the rear wheel of the bicycle, so that the central shaft 20 is also a fixed component relative to the entire bicycle and does not rotate with other components.
前述之動力輸入碟31可轉動地設於殼體10內，且可轉動地套設於中心軸20外，在本實施例中，動力輸入碟31的外側面貫穿殼體10的壁面，且與殼體10壁面之間設有一軸承33；動力輸入碟31的內側面朝向殼體10的內部突出有一圓錐部311。The power input disc 31 is rotatably disposed in the housing 10 and rotatably sleeved outside the central shaft 20. In this embodiment, the outer side surface of the power input disc 31 extends through the wall surface of the housing 10, and A bearing 33 is disposed between the wall surfaces of the casing 10; an inner surface of the power input disc 31 protrudes toward the interior of the casing 10 with a conical portion 311.
前述之動力輸出碟32可轉動地設於殼體10內，且可轉動地套設於中心軸20外，在本實施例中，動力輸出碟32的外側面貫穿殼體10的壁面，且與殼體10壁面之間設有一軸承34；動力輸出碟32的內側面朝向殼體10的內部突出有一圓錐部321；因此，動力輸入碟31的圓錐部311及動力輸出碟32的圓錐部321相向設置；The power output disc 32 is rotatably disposed in the housing 10 and rotatably sleeved outside the central shaft 20. In this embodiment, the outer side surface of the power output disc 32 extends through the wall surface of the housing 10, and A bearing 34 is disposed between the wall surfaces of the casing 10; the inner side surface of the power output disc 32 protrudes toward the inside of the casing 10 with a conical portion 321; therefore, the conical portion 311 of the power input disc 31 and the conical portion 321 of the power output disc 32 face each other Setting
在本實施例中，動力輸入碟31的圓錐部311的圓錐面的剖面及動力輸出碟32的圓錐部321的圓錐面的剖面，均為一內凹之圓弧線(如圖1所示)，但不以此為限，亦可視情形而改為直線或外凸之圓弧線。In the present embodiment, the cross section of the conical surface of the conical portion 311 of the power input disc 31 and the cross section of the conical surface of the conical portion 321 of the power output disc 32 are both concave circular lines (as shown in FIG. 1). However, it is not limited to this, and it can be changed to a straight line or a convex arc line depending on the situation.
前述之兩轉子41可轉動地設於殼體10內，且各轉子41與殼體10之間的樞轉軸與中心軸20相互垂直。The two rotors 41 are rotatably disposed in the housing 10, and the pivot axes between the rotors 41 and the housing 10 are perpendicular to the central axis 20.
前述之兩傳動碟42分別可轉動地設於兩轉子41上，且各傳動碟42與轉子41之間的樞轉軸與轉子41與殼體10之間的樞轉軸相互垂直；各傳動碟42的相對兩側分別貼靠於動力輸入碟31的圓錐部311及動力輸出碟32的圓錐部321；當動力輸入碟31轉動時，該動力輸入碟31透過該兩傳動碟42轉動動力輸出碟32。The two driving discs 42 are respectively rotatably disposed on the two rotors 41, and the pivoting shaft between the driving discs 42 and the rotor 41 and the pivoting shaft between the rotor 41 and the housing 10 are perpendicular to each other; The opposite sides respectively abut against the conical portion 311 of the power input disc 31 and the conical portion 321 of the power output disc 32. When the power input disc 31 rotates, the power input disc 31 rotates the power output disc 32 through the two transmission discs 42.
前述之離心組件50套設於中心軸20外，且連接及帶動該兩轉子41，自行車的車輪轉速會帶動離心組件50相對中心軸20轉動，而離心組件50相對中心軸20轉動時，離心組件50會透過離心力的作用進而帶動兩轉子41轉動以降低動力輸入碟31及動力輸出碟32的減速比。The centrifugal assembly 50 is sleeved outside the central shaft 20, and connects and drives the two rotors 41. The wheel speed of the bicycle drives the centrifugal assembly 50 to rotate relative to the central shaft 20. When the centrifugal assembly 50 rotates relative to the central shaft 20, the centrifugal assembly The 50 will further rotate the two rotors 41 by the action of the centrifugal force to reduce the reduction ratio of the power input disc 31 and the power output disc 32.
前述之彈性元件60連接及推動離心組件50，並使離心組件50抵抗離心力而帶動兩轉子41逆向轉動以提升動力輸入碟31及動力輸出碟32的減速比。The aforementioned elastic member 60 connects and pushes the centrifugal assembly 50, and causes the centrifugal assembly 50 to reverse the centrifugal force to drive the two rotors 41 to reversely rotate to increase the reduction ratio of the power input disc 31 and the power output disc 32.
在本實施例中，離心組件50與動力輸出碟32相連接，且被動力輸出碟32帶動而轉動，但不以此為限，離心組件50亦可與動力輸入碟31相連接，且被動力輸入碟31帶動而轉動；接下來以離心組件50與動力輸出碟32相連接為例進行說明。In the present embodiment, the centrifugal assembly 50 is connected to the power output disc 32 and is rotated by the power output disc 32. However, not limited thereto, the centrifugal assembly 50 can also be connected to the power input disc 31 and be powered. The input disk 31 is rotated to rotate; next, the centrifugal assembly 50 is connected to the power output disk 32 as an example for description.
請參閱圖3及圖5至圖7所示，在本實施例中，離心組件50包含有一套筒51、一位移盤52、複數滾柱53及一連動臂54；Referring to FIG. 3 and FIG. 5 to FIG. 7, in this embodiment, the centrifugal assembly 50 includes a sleeve 51, a displacement plate 52, a plurality of rollers 53 and a linkage arm 54;
套筒51可轉動地套設於中心軸20外，動力輸出碟32的外側突出於殼體10外，且穿設固定於套筒51中以帶動套筒51轉動。The sleeve 51 is rotatably sleeved outside the central shaft 20, and the outer side of the power output disc 32 protrudes outside the housing 10, and is inserted and fixed in the sleeve 51 to drive the sleeve 51 to rotate.
位移盤52可轉動地套設於中心軸20外，且可沿中心軸20移動；具體來說，位移盤52可移動地嵌合於套筒51外，即位移盤52會被套筒51帶動而轉動，但位移盤52仍可相對套筒51移動；具體來說，可使套筒51的外壁面及位移盤52的內壁面為多邊形來達成前述功能，但不以此構造為限；藉此，位移盤52可透過套筒51而被動力輸出碟32帶動而轉動；The displacement plate 52 is rotatably sleeved outside the central shaft 20 and movable along the central axis 20; specifically, the displacement plate 52 is movably fitted outside the sleeve 51, that is, the displacement plate 52 is driven by the sleeve 51. Rotating, but the displacement plate 52 can still move relative to the sleeve 51; specifically, the outer wall surface of the sleeve 51 and the inner wall surface of the displacement plate 52 can be polygonal to achieve the foregoing functions, but not limited to this configuration; Therefore, the displacement plate 52 can be rotated by the power output disc 32 through the sleeve 51;
在本實施例中，位移盤52相鄰於殼體10，且位移盤52朝向殼體10的一側面凹設成形有一圓錐狀的容置空間，該圓錐狀的容置空間以中心軸20的位置為圓錐的中心；該圓錐狀的容置空間的內壁面上設有複數徑向軌道521(如圖7所示)，該等軌道521於圓錐狀的內壁面上以中心軸20的位置為中心成放射狀地延伸。In the present embodiment, the displacement plate 52 is adjacent to the housing 10, and the displacement plate 52 is recessed toward a side of the housing 10 to form a conical receiving space. The conical housing space is defined by the central axis 20 The position is the center of the cone; the inner wall surface of the conical housing space is provided with a plurality of radial rails 521 (shown in FIG. 7), and the positions of the rails 521 on the inner wall surface of the cone are defined by the central axis 20 The center extends radially.
該等滾柱53位於該圓錐狀的容置空間中，且該等滾柱53的相對兩側分別貼靠於位移盤52及殼體10的外壁面；各滾柱53具體來說貼靠於位移盤52的徑向軌道521中，且可沿著徑向軌道521滑動，而位移盤52則透過該等徑向軌道521帶動該等滾柱53跟著位移盤52轉動；請參閱圖2及圖4所示，當位移盤52轉速越快時，跟著轉動的滾柱53會因為離心力而逐漸遠離中心軸20，並因此沿著圓錐狀的內壁面而朝遠離殼體10方向地推動該位移盤52；The rollers 53 are located in the conical accommodating space, and the opposite sides of the rollers 53 abut against the displacement plate 52 and the outer wall surface of the housing 10 respectively; the rollers 53 are specifically abutted against The radial track 521 of the displacement plate 52 is slidable along the radial track 521, and the displacement plate 52 drives the rollers 53 to rotate along the displacement plate 52 through the radial tracks 521; please refer to FIG. 2 and FIG. As shown in Fig. 4, when the rotational speed of the displacement plate 52 is faster, the roller 53 following the rotation gradually moves away from the central shaft 20 due to the centrifugal force, and thus the displacement plate is pushed away from the casing 10 along the conical inner wall surface. 52;
請參閱圖1、圖3、圖5及圖6所示，彈性元件60朝向該等滾柱53地推抵於位移盤52，以使該等滾柱53沿著圓錐狀的內壁面朝向中心軸20移動；在其他實施例中，滾柱53亦可改為球體，僅要可以被位移盤52轉動，並可透過離心力延沿著圓錐狀的內壁面遠離中心軸20或朝向中心軸20地移動即可；在本實施例中，彈性元件60為一壓縮彈簧，但彈性元件60的位置及形式不以此為限，僅要能朝向滾柱53推動位移盤52即可。Referring to FIG. 1 , FIG. 3 , FIG. 5 and FIG. 6 , the elastic element 60 is pushed against the displacement plate 52 toward the rollers 53 such that the rollers 53 are oriented along the conical inner wall surface toward the central axis. 20 moves; in other embodiments, the roller 53 can also be changed to a ball, which can only be rotated by the displacement plate 52, and can be moved along the conical inner wall surface away from the central axis 20 or toward the central axis 20 by centrifugal force. In this embodiment, the elastic member 60 is a compression spring, but the position and form of the elastic member 60 are not limited thereto, and only the displacement plate 52 can be pushed toward the roller 53.
連動臂54連接位移盤52及兩轉子41，當位移盤52相對中心軸20移動時，位移盤52帶動連動臂54跟著移動，而連動臂54則連帶轉動兩轉子41；在本實施例中，連動臂54上設有一缺口541，位移盤52徑向上的周緣可轉動地設於缺口541中，並且缺口541的內壁面及位移盤52的徑向周緣之間進一步設有複數滾珠542，如此以作為軸承使用，因此不論位移盤52如何轉動，都能讓其徑向周緣保持位於該缺口541內，而當位移盤52移動時，位移盤52仍可帶動連動臂54跟著移動；但位移盤52帶動連動臂54的構造不以此為限，僅要能無視位移盤52的轉動而能直線帶動連動臂54即可。The interlocking arm 54 is connected to the displacement plate 52 and the two rotors 41. When the displacement plate 52 moves relative to the central axis 20, the displacement plate 52 drives the linkage arm 54 to move, and the linkage arm 54 rotates the two rotors 41; in this embodiment, The connecting arm 54 is provided with a notch 541. The radial periphery of the displacement plate 52 is rotatably disposed in the notch 541, and a plurality of balls 542 are further disposed between the inner wall surface of the notch 541 and the radial periphery of the displacement plate 52. As a bearing, the radial circumference can be kept in the notch 541 regardless of the rotation of the displacement plate 52. When the displacement plate 52 moves, the displacement plate 52 can still move the linkage arm 54; however, the displacement plate 52 The configuration of the driving link 54 is not limited thereto, and it is only necessary to be able to linearly drive the linking arm 54 regardless of the rotation of the displacement plate 52.
各轉子41的一端的外壁面上環繞設有一環齒部411，該環齒部411的齒可環繞延伸至360度，或只環繞延伸至特定角度亦可，例如在本實施例中，環齒部411的齒僅環繞延伸至180度(如圖3所示)，但如此已足夠進行減速比的調整；A ring tooth portion 411 is disposed on an outer wall surface of one end of each of the rotors 41. The teeth of the ring tooth portion 411 can extend around 360 degrees or extend only to a specific angle. For example, in this embodiment, the ring teeth The teeth of the portion 411 extend only to 180 degrees (as shown in FIG. 3), but this is sufficient to adjust the reduction ratio;
連動臂54上設有兩齒條部543，兩齒條部543延伸的方向與中心軸20平行，兩齒條部543分別嚙合於兩轉子41的環齒部411，藉此當位移盤52帶動連動臂54移動時，連動臂54會帶動兩轉子41轉動，進而改變兩傳動碟42的角度，以改變傳動碟42抵靠於動力輸入碟31的圓錐部311及動力輸出碟32的圓錐部321的位置來改變減速比。The link arm 54 is provided with two rack portions 543. The two rack portions 543 extend in a direction parallel to the central axis 20, and the two rack portions 543 are respectively engaged with the ring teeth portion 411 of the two rotors 41, thereby being driven by the displacement plate 52. When the linkage arm 54 moves, the linkage arm 54 drives the two rotors 41 to rotate, thereby changing the angles of the two transmission discs 42 to change the drive disc 42 against the conical portion 311 of the power input disc 31 and the conical portion 321 of the power output disc 32. The position to change the reduction ratio.
連動臂54帶動轉子41轉動的方式不以前述之齒條部543及環齒部411的嚙合為限，僅要能將連動臂54的直線移動轉換成轉子41的轉動即可。The manner in which the interlocking arm 54 rotates the rotor 41 is not limited to the meshing of the rack portion 543 and the ring gear portion 411 described above, and only the linear movement of the interlocking arm 54 can be converted into the rotation of the rotor 41.
連動臂54上設有一導引孔544，導引孔544為一長孔，且其延伸方向與中心軸20平行；殼體10上設有一導引柱11，導引柱11穿設於連動臂54的導引孔544中，藉以確保連動臂54僅能沿著中心軸20直線移動。The guiding arm 544 is provided with a guiding hole 544. The guiding hole 544 is a long hole and extends in parallel with the central axis 20; the housing 10 is provided with a guiding post 11 , and the guiding column 11 is disposed on the linking arm The guide hole 544 of the 54 is used to ensure that the linkage arm 54 can only move linearly along the central axis 20.
離心組件50及彈性元件60的細部構造及位置不以上述為限，例如離心組件50亦可位於殼體10設置動力輸入碟31的一側，並被動力輸入碟31轉動，這時位移盤52可改相鄰於輪轂72，而該等滾柱53改位於輪轂72的內壁面及位移盤52之間等等；或者是離心組件50亦可改為其他構造，僅要可透過離心力來帶動兩轉子41轉動即可，或進一步來說，僅要可將離心力轉換成直線運動，再透過該直線運動轉換成轉子41的轉動即可；The detailed configuration and position of the centrifugal assembly 50 and the elastic member 60 are not limited to the above. For example, the centrifugal assembly 50 may be located on the side of the housing 10 where the power input disc 31 is disposed, and rotated by the power input disc 31. Adjacent to the hub 72, the rollers 53 are located between the inner wall surface of the hub 72 and the displacement plate 52, etc.; or the centrifugal assembly 50 can be changed to other configurations, and only the centrifugal force is required to drive the two rotors. 41 can be rotated, or further, only the centrifugal force can be converted into a linear motion, and then converted into the rotation of the rotor 41 through the linear motion;
至於彈性元件60，其也可以不連接位移盤52，而改為連接連動臂54來直接拉動連動臂54；或者是，彈性元件60也可以不是壓縮彈簧或拉伸彈簧，而改為扭力彈簧並直接連接該兩轉子41等等，彈性元件60僅要最終能轉動兩轉子41來提升動力輸入碟31及動力輸出碟32的減速比即可。As for the elastic member 60, the displacement plate 52 may not be connected, and the linkage arm 54 may be connected to directly pull the linkage arm 54; or the elastic member 60 may be a compression spring or a tension spring instead of a torsion spring. The two rotors 41 and the like are directly connected, and the elastic member 60 only needs to be able to finally rotate the two rotors 41 to increase the reduction ratio of the power input disc 31 and the power output disc 32.
請參閱圖1及圖3所示，前述之輸入齒盤71在本實施例中作為最初輸入之元件，輸入齒盤71連接動力輸入碟31，且可帶動動力輸入碟31轉動；在本實施例中，輸入齒盤71可轉動地套設於中心軸20外，且沿著中心軸20突出有一連接套管711，連接套管711與動力輸入碟31相連接。Referring to FIG. 1 and FIG. 3, the input input gear 71 is the first input component in the embodiment, and the input toothed disk 71 is connected to the power input disk 31, and can drive the power input disk 31 to rotate; The input toothed disc 71 is rotatably sleeved outside the central shaft 20, and a connecting sleeve 711 is protruded along the central shaft 20, and the connecting sleeve 711 is connected to the power input disc 31.
前述之輪轂72包覆於殼體10、動力輸入碟31、動力輸出碟32、兩轉子41、兩傳動碟42、離心組件50、彈性元件60及逆轉組件80外，中心軸20貫穿輪轂72，輸入齒盤71的連接套管711穿設於輪轂72內；輪轂72在本實施例中作為最終輸出之元件，輪轂72連接動力輸出碟32，且具體來說係套設固定於離心組件50的套筒51外，藉此動力輸出碟32可透過套筒51帶動輪轂72轉動；在本實施例中，輪轂72與連接套管711之間設有一軸承721；此外，在本實施例中，彈性元件60相對於離心組件50的另一端係推抵於輪轂72的內壁面。The hub 72 is covered by the housing 10, the power input disc 31, the power output disc 32, the two rotors 41, the two drive discs 42, the centrifugal assembly 50, the elastic member 60 and the reverse assembly 80, and the central shaft 20 extends through the hub 72. The connecting sleeve 711 of the input toothed disc 71 is bored in the hub 72; the hub 72 is the final output component in this embodiment, and the hub 72 is connected to the power output disc 32, and specifically to the centrifugal assembly 50. Outside the sleeve 51, the power output disc 32 can drive the hub 72 to rotate through the sleeve 51; in the embodiment, a bearing 721 is disposed between the hub 72 and the connecting sleeve 711; further, in the embodiment, the elasticity The element 60 is urged against the inner wall surface of the hub 72 with respect to the other end of the centrifugal assembly 50.
本創作之變速裝置的輸入及輸出不以輸入齒盤71及輪轂72為限，亦可依需求而更改。The input and output of the shifting device of the present invention are not limited to the input toothed disc 71 and the hub 72, and may be changed as needed.
前述之逆轉組件80連接於動力輸入碟31或動力輸出碟32，逆轉組件80可將輸入於逆轉組件80的轉動轉換成相反方向的轉動後再輸出；具體來說，由於動力輸入碟31帶動傳動碟42轉動，而傳動碟42再帶動動力輸出碟32轉動後，動力輸入碟31及動力輸出碟32的轉動方向會相反，因此逆轉組件80可再將轉動逆轉一次，以使本創作之最初輸入及最終輸出的轉動方向相同；The reverse assembly 80 is connected to the power input disc 31 or the power output disc 32. The reverse assembly 80 can convert the rotation input to the reverse assembly 80 into the opposite direction of rotation and then output; specifically, the power input disc 31 drives the transmission. When the disc 42 rotates and the drive disc 42 drives the power output disc 32 to rotate, the rotation direction of the power input disc 31 and the power output disc 32 will be reversed, so that the reverse assembly 80 can reverse the rotation once again, so that the initial input of the creation is made. And the final output has the same direction of rotation;
因此逆轉組件80可設於任意位置處，例如可設於最初輸入(輸入齒盤71)與動力輸入碟31之間，或是設於動力輸出碟32與最終輸出(輪轂72)之間皆可，在本實施例中，逆轉組件80及離心組件50分別設於殼體10的相對兩側以縮小整體體積，因此在本實施例中，逆轉組件80設於輸入齒盤71與動力輸入碟31之間。Therefore, the reversing component 80 can be disposed at any position, for example, between the initial input (the input sprocket 71) and the power input disc 31, or between the power output disc 32 and the final output (the hub 72). In this embodiment, the reversing assembly 80 and the centrifugal assembly 50 are respectively disposed on opposite sides of the housing 10 to reduce the overall volume. Therefore, in the embodiment, the reversing assembly 80 is disposed on the input sprocket 71 and the power input disc 31. between.
此外，逆轉組件80可為任意構造，僅要能轉換轉動方向即可，在本實施例中，逆轉組件80為一行星齒輪組，且包含有一太陽齒輪81、至少一行星齒輪82、一行星支架83及一內齒輪84；行星支架83固設於殼體10上，輸入齒盤71的連接套管711可轉動地貫穿行星支架83，在本實施例中，行星支架83與連接套管711之間設有一軸承85；至少一行星齒輪82可自轉地設於行星支架83上；內齒輪84及太陽齒輪81的其中之一用以輸入逆轉組件80的轉動(即連接輸入齒盤71)，內齒輪84及太陽齒輪81的另一用以輸出逆轉組件80的轉動(即連接動力輸入碟31)；在本實施例中，太陽齒輪81套設固定於輸入齒盤71的連接套管711外，內齒輪84套設固定於動力輸入碟31突出於殼體10外的部分，但亦可相反，即太陽齒輪81連接動力輸入碟31，內齒輪84連接輸入齒盤71。In addition, the reversing assembly 80 can be of any configuration, and only needs to be able to change the direction of rotation. In this embodiment, the reversing assembly 80 is a planetary gear set and includes a sun gear 81, at least one planet gear 82, and a planet carrier. 83 and an internal gear 84; the planetary bracket 83 is fixed on the casing 10, and the connecting sleeve 711 of the input toothed disc 71 is rotatably penetrated through the planetary bracket 83. In this embodiment, the planetary bracket 83 and the connecting sleeve 711 are A bearing 85 is disposed between the at least one planetary gear 82; the inner gear 84 and the sun gear 81 are used for inputting the rotation of the reverse assembly 80 (ie, connecting the input toothed disc 71). The other one of the gear 84 and the sun gear 81 is used for outputting the rotation of the reversing assembly 80 (ie, connecting the power input disc 31); in the embodiment, the sun gear 81 is sleeved and fixed outside the connecting sleeve 711 of the input sprocket 71. The internal gear 84 is sleeved and fixed to a portion of the power input disc 31 that protrudes outside the casing 10. Alternatively, the sun gear 81 is connected to the power input disc 31, and the internal gear 84 is connected to the input sprocket 71.
請參閱圖請參閱圖1、圖3及圖8所示，本創作使用時，係設置於自行車的後輪91處，鍊條92嵌合於套設於輸入齒盤71外並帶動輸入齒盤71轉動，輸入齒盤71透過逆轉組件80帶動動力輸入碟31轉動，動力輸入碟31透過傳動碟42帶動動力輸出碟32轉動並同時提升轉速或降低轉速，最後動力輸出碟32帶動輪轂72轉動，輪轂72則帶動自行車的後輪91轉動。Please refer to FIG. 1 , FIG. 3 and FIG. 8 . When the present invention is used, it is disposed at the rear wheel 91 of the bicycle, and the chain 92 is fitted to the outside of the input sprocket 71 and drives the input sprocket 71 . Rotating, the input toothed disc 71 drives the power input disc 31 to rotate through the reverse rotation assembly 80. The power input disc 31 drives the power output disc 32 to rotate through the drive disc 42 and simultaneously raises the rotational speed or reduces the rotational speed. Finally, the power output disc 32 drives the hub 72 to rotate, and the hub 72 drives the rear wheel 91 of the bicycle to rotate.
請參閱圖1及圖3所示，於剛起步或低轉速時，彈性元件60推抵離心組件50使得傳動碟42的角度係讓動力輸入碟31及動力輸出碟32的減速比較低，因此使用者僅需輕鬆地踩踏踏板93便可帶動後輪91轉動；請參閱圖2及圖4所示，而當踏板軸94轉速越來越高後，輸入齒盤71轉速越來越高，進而使位移盤52轉速越來越高，而跟著轉動的滾柱53也因離心力而逐漸遠離中心軸20而推動位移盤52，位移盤52則透過連動臂54逐漸轉動兩轉子41，轉子41便逐漸改變傳動碟42的角度來提高動力輸入碟31及動力輸出碟32的減速比，因此在踏板軸94轉速不變的情形下，使用者踩踏踏板93所需的力逐漸增加，但後輪91轉速也會逐漸增快，本創作藉此無須手動進行任何操作，便可達到自動變速的功效。Referring to FIG. 1 and FIG. 3, at the beginning or at a low rotation speed, the elastic member 60 is pushed against the centrifugal assembly 50 so that the angle of the driving disc 42 is such that the deceleration of the power input disc 31 and the power output disc 32 is relatively low, so that it is used. The pedal 93 can be easily rotated by simply stepping on the pedal 93; please refer to FIG. 2 and FIG. 4, and when the pedal shaft 94 is rotated at a higher speed, the input gear 71 is rotated more and more, thereby making The rotation speed of the displacement plate 52 is higher and higher, and the roller 53 which is rotated is gradually pushed away from the central shaft 20 by the centrifugal force to push the displacement plate 52. The displacement plate 52 gradually rotates the two rotors 41 through the linkage arm 54, and the rotor 41 gradually changes. The angle of the drive disc 42 increases the reduction ratio of the power input disc 31 and the power output disc 32. Therefore, in the case where the rotational speed of the pedal shaft 94 does not change, the force required for the user to step on the pedal 93 gradually increases, but the rotational speed of the rear wheel 91 also increases. It will gradually increase, and this creation can achieve the effect of automatic shifting without any manual operation.
本創作除可設置於一般自行車上，亦可設置於電動自行車等等。This creation can be set on a general bicycle or on an electric bicycle.
以上所述僅是本創作的較佳實施例而已，並非對本創作做任何形式上的限制，雖然本創作已以較佳實施例揭露如上，然而並非用以限定本創作，任何所屬技術領域中具有通常知識者，在不脫離本創作技術方案的範圍內，當可利用上述揭示的技術內容作出些許更動或修飾為等同變化的等效實施例，但凡是未脫離本創作技術方案的內容，依據本創作的技術實質對以上實施例所作的任何簡單修改、等同變化與修飾，均仍屬於本創作技術方案的範圍內。The above description is only a preferred embodiment of the present invention, and does not impose any form limitation on the present invention. Although the present invention has been disclosed above in the preferred embodiment, it is not intended to limit the present creation, and has any technical field. A person skilled in the art can make some modifications or modifications to equivalent embodiments by using the above-disclosed technical contents without departing from the technical scope of the present invention. The technical essence of the creation Any simple modification, equivalent change and modification of the above embodiments are still within the scope of the technical solution of the present invention.
10‧‧‧殼體10‧‧‧shell
11‧‧‧導引柱 11‧‧‧ Guide column
20‧‧‧中心軸 20‧‧‧ center axis
31‧‧‧動力輸入碟 31‧‧‧Power input disc
311‧‧‧圓錐部 311‧‧‧Cone
32‧‧‧動力輸出碟 32‧‧‧Power output disc
321‧‧‧圓錐部 321‧‧‧Cone
33‧‧‧軸承 33‧‧‧ bearing
34‧‧‧軸承 34‧‧‧ bearing
41‧‧‧轉子 41‧‧‧Rotor
411‧‧‧環齒部 411‧‧‧ Ring tooth
42‧‧‧傳動碟 42‧‧‧ Drive disc
50‧‧‧離心組件 50‧‧‧ Centrifugal components
51‧‧‧套筒 51‧‧‧ sleeve
52‧‧‧位移盤 52‧‧‧displacement disk
521‧‧‧軌道 521‧‧‧ Track
53‧‧‧滾柱 53‧‧‧roller
54‧‧‧連動臂 54‧‧‧ linkage arm
541‧‧‧缺口 541‧‧‧ gap
542‧‧‧滾珠 542‧‧‧ balls
543‧‧‧齒條部 543‧‧‧ rack section
544‧‧‧導引孔 544‧‧‧ Guide hole
60‧‧‧彈性元件 60‧‧‧Flexible components
71‧‧‧輸入齒盤 71‧‧‧ input chain
711‧‧‧連接套管 711‧‧‧Connecting casing
72‧‧‧輪轂 72‧‧·wheels
721‧‧‧軸承 721‧‧‧ bearing
80‧‧‧逆轉組件 80‧‧‧Reversal components
81‧‧‧太陽齒輪 81‧‧‧Sun gear
82‧‧‧行星齒輪 82‧‧‧ planetary gear
83‧‧‧行星支架 83‧‧‧ Planetary bracket
84‧‧‧內齒輪 84‧‧‧Internal gear
85‧‧‧軸承 85‧‧‧ bearing
91‧‧‧後輪 91‧‧‧ Rear wheel
92‧‧‧鍊條 92‧‧‧Chain
93‧‧‧踏板 93‧‧‧ pedal
94‧‧‧踏板軸 94‧‧‧ pedal shaft
圖1係本創作的上視剖面圖。 圖2係本創作使用時的上視剖面圖。 圖3係本創作的連動臂處的上視剖面圖。 圖4係本創作使用時的連動臂處的上視剖面圖。 圖5係本創作的轉子、連動臂及位移盤的立體外觀示意圖。 圖6係本創作的連動臂及位移盤的側視連接示意圖。 圖7係本創作的位移盤的徑向軌道示意圖。 圖8係本創作裝設於自行車上的側視示意圖。Figure 1 is a top cross-sectional view of the present creation. Figure 2 is a top cross-sectional view of the present invention when used. Figure 3 is a top cross-sectional view of the associated arm of the present invention. Figure 4 is a top cross-sectional view of the linking arm at the time of use of the present invention. FIG. 5 is a schematic perspective view of the rotor, the linkage arm and the displacement plate of the present invention. Fig. 6 is a side view connection diagram of the linked arm and the displacement plate of the present invention. Figure 7 is a schematic view of the radial track of the displacement disk of the present invention. Figure 8 is a side elevational view of the present invention mounted on a bicycle.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106135821A TWI656061B (en) | 2017-10-19 | 2017-10-19 | Bicycle automatic automatic transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW106135821A TWI656061B (en) | 2017-10-19 | 2017-10-19 | Bicycle automatic automatic transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI656061B true TWI656061B (en) | 2019-04-11 |
| TW201917062A TW201917062A (en) | 2019-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW106135821A TWI656061B (en) | 2017-10-19 | 2017-10-19 | Bicycle automatic automatic transmission |
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| Country | Link |
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| TW (1) | TWI656061B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4061452B2 (en) * | 1997-10-22 | 2008-03-19 | フォールブルック テクノロジーズ インコーポレイテッド | Continuously variable transmission |
| TWM466067U (en) * | 2013-03-29 | 2013-11-21 | Univ Nat United | Drive device and electric motorcycle drive system using the drive device |
| WO2014172422A1 (en) * | 2013-04-19 | 2014-10-23 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| TW201447146A (en) * | 2005-12-09 | 2014-12-16 | Fallbrook Ip Co Llc | Continuously variable transmission |
| CN205489960U (en) * | 2015-12-03 | 2016-08-17 | 南通雷圣特种电机有限公司 | Novel electricity motor for help -move -vehicle |
-
2017
- 2017-10-19 TW TW106135821A patent/TWI656061B/en active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4061452B2 (en) * | 1997-10-22 | 2008-03-19 | フォールブルック テクノロジーズ インコーポレイテッド | Continuously variable transmission |
| TW201447146A (en) * | 2005-12-09 | 2014-12-16 | Fallbrook Ip Co Llc | Continuously variable transmission |
| TWM466067U (en) * | 2013-03-29 | 2013-11-21 | Univ Nat United | Drive device and electric motorcycle drive system using the drive device |
| WO2014172422A1 (en) * | 2013-04-19 | 2014-10-23 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| CN205489960U (en) * | 2015-12-03 | 2016-08-17 | 南通雷圣特种电机有限公司 | Novel electricity motor for help -move -vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201917062A (en) | 2019-05-01 |
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