JP5571420B2

JP5571420B2 - Drive booster

Info

Publication number: JP5571420B2
Application number: JP2010067331A
Authority: JP
Inventors: 悦進阿久津
Original assignee: 悦進阿久津
Priority date: 2010-03-24
Filing date: 2010-03-24
Publication date: 2014-08-13
Anticipated expiration: 2030-03-24
Also published as: JP2011195128A

Description

本発明は、一般自転車等の駆動を補助する駆動倍力装置に関する。 The present invention relates to a drive booster that assists in driving a general bicycle or the like.

従来の自転車は、変速機を取り付けるなどして爽快に走行させる対策を施したものがある。 Some conventional bicycles have measures to make them run refreshingly by attaching a transmission or the like.

特開２００８−４４５８５号JP 2008-44585 A

以上に述べた従来の自転車は、変速機を取り付けるなどして爽快に走行させることはできるが、走行時において常につきまとうペダルをこぐ足の負荷を軽減させることはできないものであった。 Although the conventional bicycle described above can be driven exhilaratingly by attaching a transmission or the like, it has been impossible to reduce the load on the foot that always pedals during driving.

本発明は、このような従来の問題を解決しようとするものであり、自転車の駆動力を増大させるとともに後輪に作用させることができ、走行時において常につきまとうペダルをこぐ足の負荷を効果的に軽減させる駆動倍力装置を提供することを目的とするものである。 The present invention is intended to solve such a conventional problem, and can increase the driving force of the bicycle and act on the rear wheel, and effectively applies the load on the foot that always pedals during running. It is an object of the present invention to provide a drive booster that can be reduced.

そして、本発明は上記目的を達成するため、第１揺動リンクと、この第１揺動リンクの一端に回転可能に取り付けられた第１スプロケットと、この第１スプロケットに固定され前記第１揺動リンクに回転可能に挿通され前記第１揺動リンクを揺動可能とする第１回転軸と、前記第１揺動リンクの他端に回転可能に取り付けられ前記第１スプロケットとは異なる第２スプロケットと、この第２スプロケットに固定され前記第１揺動リンクに回転可能に挿通された移動回転ピンと、前記第１および第２スプロケットに掛けられたチェーンと、前記第１揺動リンクとは異なる第２揺動リンクと、この第２揺動リンクの一端に固定されこの第２揺動リンクを支持する回転可能な支軸と、前記第２揺動リンクの他端に回転可能に取り付けられ前記支軸にて前記第１および第２揺動リンクの移動を連携させる移動回転軸と、前記移動回転ピンと前記移動回転軸との間に固定され、これら移動回転ピンおよび移動回転軸を交互に支点作用させつつ往復移動させる第１板状の棒と、前記移動固定軸に固定された第２板状の棒と、一端に長手方向に沿った溝が設けられたクランクと、前記第２板状の棒の一端に固定され前記溝内に移動可能に嵌合された転がり軸と、前記クランクの他端に固定された回転可能な第２回転軸と、を備え、前記クランクは、前記第１回転軸を回転中心とした前記第１揺動リンクの揺動によって前記第２回転軸および前記転がり軸間の距離を変えながら回転し回転力を前記第２回転軸に伝達させ、これら第２回転軸から前記転がり軸までの距離を変化させ、前記第２板状の棒と前記クランクとが相対的に垂直な状態で、前記移動回転ピンが前記第２回転軸より下の位置にあり、前記移動回転ピンを一時的に支点作用させるとともに前記移動回転軸を移動させた際に、前記転がり軸が溝内を移動することによって一時的にてこ作用を生じさせて回転するようにしたものである。 The present invention for achieving the above object, a first swing link, a first sprocket rotatably attached to one end of the first swing link, fixed to the first sprocket the first rocking A first rotating shaft that is rotatably inserted into the moving link and that allows the first swinging link to swing, and a second rotating shaft that is rotatably attached to the other end of the first swinging link and is different from the first sprocket. A sprocket, a moving rotation pin fixed to the second sprocket and rotatably inserted in the first swing link, a chain hung on the first and second sprockets, and the first swing link are different. A second swing link, a rotatable support shaft that is fixed to one end of the second swing link and supports the second swing link, and is rotatably attached to the other end of the second swing link. to the support shaft Reciprocating a moving rotational shaft to link the movement of the first and second swing link, said fixed between the moving rotation pin and the moving rotation axis, while alternately by the fulcrum effect of these mobile pivot pin and moving the rotary shaft A first plate-like rod to be moved; a second plate-like rod fixed to the movable fixed shaft; a crank provided with a groove along one longitudinal direction at one end; and one end of the second plate-like rod A rolling shaft fixed to the groove and movably fitted in the groove, and a rotatable second rotating shaft fixed to the other end of the crank. The crank includes the first rotating shaft. Rotation of the first oscillating link about the center of rotation causes rotation while changing the distance between the second rotating shaft and the rolling shaft to transmit the rotational force to the second rotating shaft. changing the distance to the rolling axis, wherein the second plate-shaped bar When the moving rotation pin is at a position below the second rotation shaft in a state where the crank is relatively perpendicular to the crank, and the movement rotation pin is temporarily moved and the movement rotation shaft is moved. In addition, the rolling shaft is temporarily rotated by causing the lever to move in the groove .

上記発明の作用は、次の通りである。すなわちクランクの溝に嵌合させた転がり軸を、第２板状の棒に固定されている移動回転軸から短い距離の位置から、クランクに固定されている第２回転軸から長い距離の位置へ移動させることにより、溝内を移動することになり、一時的にてこ作用を生じさせながら回転させることができるから、このてこ作用が生じる部分の出力が増大される。 The operation of the invention is as follows. That is, the rolling shaft fitted in the groove of the crank is moved from a position at a short distance from the moving rotating shaft fixed to the second plate-shaped rod to a position at a long distance from the second rotating shaft fixed to the crank. By moving it, it moves in the groove and can be rotated while temporarily generating a lever effect, so that the output of the portion where this lever effect occurs is increased.

また、本発明は、第１揺動リンクと、この第１揺動リンクの一端に回転可能に取り付けられた第１スプロケットと、この第１スプロケットに固定され前記第１揺動リンクに回転可能に挿通され前記第１揺動リンクを揺動可能とする第１回転軸と、前記第１揺動リンクの他端に回転可能に取り付けられ前記第１スプロケットとは異なる第２スプロケットと、この第２スプロケットに固定され前記第１揺動リンクに回転可能に挿通された移動回転ピンと、前記第１および第２スプロケットに掛けられたチェーンと、前記第１揺動リンクとは異なる第２揺動リンクと、この第２揺動リンクの一端に固定されこの第２揺動リンクを支持する回転可能な支軸と、前記第２揺動リンクの他端に回転可能に取り付けられ前記支軸にて前記第１および第２揺動リンクの移動を連携させる移動回転軸と、前記移動回転ピンと前記移動回転軸との間に固定され、これら移動回転ピンおよび移動回転軸を交互に支点作用させつつ往復移動させる第１板状の棒と、一端に長手方向に沿った溝が設けられ前記移動固定軸に固定されたクランクと、このクランクの前記溝内に移動可能に嵌合された転がり軸と、この転がり軸が一端に固定された第２板状の棒と、この第２板状の棒の他端に固定された回転可能な第２回転軸と、を備え、前記クランクは、前記第１回転軸を回転中心とした前記第１揺動リンクの揺動によって前記移動回転軸および前記転がり軸間の距離を変えながら回転し回転力を前記第２回転軸に伝達させ、前記移動回転軸から前記転がり軸までの距離を変化させ、前記第２板状の棒と前記クランクとが相対的に垂直な状態で、前記移動回転ピンが前記第２回転軸より下の位置にあり、前記移動回転ピンを一時的に支点作用させるとともに前記移動回転軸を移動させた際に、前記転がり軸が溝内を移動することによって一時的にてこ作用を生じさせて回転するようにしたものである。 Further, the present invention provides a first swing link, a first sprocket rotatably attached to one end of the first swing link, and fixed to the first sprocket so as to be rotatable about the first swing link. A first rotating shaft that is inserted and capable of swinging the first swing link; a second sprocket that is rotatably attached to the other end of the first swing link and is different from the first sprocket; A moving rotation pin fixed to a sprocket and rotatably inserted in the first swing link; a chain hung on the first and second sprockets; and a second swing link different from the first swing link the at this and rotatable shaft having one end to support the second oscillating link fixing of records of the second swing link, said support shaft rotatably attached to the other end of the second swing link First and second swing And a first plate-like rod that is fixed between the moving rotating pin and the moving rotating shaft, and reciprocally moves while the moving rotating pin and the moving rotating shaft act alternately as fulcrums. A crank that is provided with a groove along one longitudinal direction at one end and fixed to the movable fixed shaft, a rolling shaft that is movably fitted in the groove of the crank, and the rolling shaft is fixed to one end. A second plate-like rod and a rotatable second rotating shaft fixed to the other end of the second plate-like rod, and the crank has the first rotating shaft as a center of rotation. By rotating the first swing link, the distance between the moving rotary shaft and the rolling shaft is changed to rotate and transmit the rotational force to the second rotary shaft, and the distance from the moving rotary shaft to the rolling shaft is changed. It is, the said second plate-shaped bar clan When the moving rotation pin is at a position below the second rotation axis, the movement rotation pin is temporarily acted on as a fulcrum, and the movement rotation shaft is moved. When the rolling shaft moves in the groove , a lever action is temporarily generated to rotate.

さらに、本発明は、第１揺動リンクと、この第１揺動リンクの一端に回転可能に取り付けられた第１スプロケットと、この第１スプロケットに固定され前記第１揺動リンクに回転可能に挿通された移動回転軸と、この移動回転軸に一端が固定された第１板状の棒と、この第１板状の棒の他端に固定され、この第１板状の棒を介して前記移動回転軸に対して偏心させて取り付けられた回転可能な第１回転軸と、前記第１揺動リンクの他端に回転可能に取り付けられ前記第１スプロケットとは異なる第２スプロケットと、この第２スプロケットに固定され前記第１揺動リンクに回転可能に挿通された移動回転ピンと、前記第１および第２スプロケットに掛けられたチェーンと、一端が前記移動回転ピンに回転可能に取り付けられ前記第１揺動リンクとは異なる第２揺動リンクと、この第２揺動リンクの他端に固定されこの第２揺動リンクを支持する回転可能な支軸と、一端が前記移動回転ピンに固定された第２板状の棒と、一端に長手方向に沿った溝が設けられたクランクと、前記第２板状の棒の他端に固定され前記溝内に移動可能に嵌合された転がり軸と、前記クランクの他端に固定された回転可能な第２回転軸と、を備え、前記第１板状の棒は、前記移動回転ピンおよび第１回転軸を交互に支点作用させつつ往復移動させ、前記クランクは、前記移動回転軸を回転中心とした前記第１揺動リンクの揺動によって前記第２回転軸および前記転がり軸間の距離を変えながら回転し回転力を前記第２回転軸に伝達させ、これら第２回転軸から前記転がり軸までの距離を変化させ、前記第２板状の棒と前記クランクとが相対的に垂直な状態で、前記移動回転ピンが前記第２回転軸より下の位置にあり、移動回転ピンを一時的に支点作用させるとともに前記移動回転軸を移動させた際に、前記転がり軸が溝内を移動することによって一時的にてこ作用を生じさせて回転するようにしたものである。 Further, the present invention provides a first swing link, a first sprocket rotatably attached to one end of the first swing link, and fixed to the first sprocket so as to be rotatable about the first swing link. The inserted moving rotary shaft, a first plate-like rod fixed at one end to the movable rotary shaft, and fixed to the other end of the first plate-like rod , via the first plate-like rod A rotatable first rotating shaft attached eccentrically with respect to the moving rotating shaft, a second sprocket which is rotatably attached to the other end of the first swing link and is different from the first sprocket, A moving rotation pin fixed to the second sprocket and rotatably inserted into the first swing link, a chain hung on the first and second sprockets, and one end rotatably attached to the moving rotation pin First rocking phosphorus The fixed and different from the second swing link, a rotatable support shaft that supports the second swing link fixed of record to the other end of the second swing link and one end the moving rotation pin and A two-plate rod, a crank provided with a groove along one longitudinal direction at one end, a rolling shaft fixed to the other end of the second plate-like rod and movably fitted in the groove; A rotatable second rotating shaft fixed to the other end of the crank, and the first plate-like rod is reciprocally moved while the moving rotating pin and the first rotating shaft act alternately as fulcrums. The crank rotates while changing the distance between the second rotating shaft and the rolling shaft by the swing of the first swing link about the moving rotating shaft as a rotation center, and the rotational force is applied to the second rotating shaft. It is transmitted, changing the distance to the rolling axis from these second rotation axis, the second In a state where the rod and the crank are relatively vertical, the moving rotation pin is at a position below the second rotation shaft, and the movement rotation pin temporarily acts as a fulcrum and moves the movement rotation shaft. When the rolling shaft is moved, the rolling shaft moves in the groove to cause a temporary lever action to rotate.

また、本発明は、第１揺動リンクと、この第１揺動リンクの一端に回転可能に取り付けられた第１スプロケットと、この第１スプロケットに固定され前記第１揺動リンクに回転可能に挿通された移動回転軸と、この移動回転軸に一端が固定された第１板状の棒と、この第１板状の棒の他端に固定され、この第１板状の棒を介して前記移動回転軸に対して偏心させて取り付けられた回転可能な第１回転軸と、前記第１揺動リンクの他端に回転可能に取り付けられ前記第１スプロケットとは異なる第２スプロケットと、この第２スプロケットに固定され前記第１揺動リンクに回転可能に挿通された移動回転ピンと、前記第１および第２スプロケットに掛けられたチェーンと、一端が前記移動回転ピンに回転可能に取り付けられ前記第１揺動リンクとは異なる第２揺動リンクと、この第２揺動リンクの他端に固定されこの第２揺動リンクを支持する回転可能な支軸と、一端が前記移動回転ピンに固定され他端に長手方向に沿った溝が設けられたクランクと、前記溝内に移動可能に嵌合された転がり軸と、この転がり軸が一端に固定された第２板状の棒と、この第２板状の棒の他端に固定された回転可能な第２回転軸と、を備え、前記第１板状の棒は、前記移動回転ピンおよび第１回転軸を交互に支点作用させつつ往復移動させ、前記クランクは、前記移動回転軸を回転中心とした前記第１揺動リンクの揺動によって前記移動回転ピンおよび前記転がり軸間の距離を変えながら回転し回転力を前記第２回転軸に伝達させ、前記移動回転ピンから前記転がり軸までの距離を変化させ、前記第２板状の棒と前記クランクとが相対的に垂直な状態で、前記移動回転ピンが前記第２回転軸より下の位置にあり、移動回転ピンを一時的に支点作用させるとともに前記移動回転軸を移動させた際に、前記転がり軸が溝内を移動することによって一時的にてこ作用を生じさせて回転するようにしたものである。 Further, the present invention provides a first swing link, a first sprocket rotatably attached to one end of the first swing link, and fixed to the first sprocket so as to be rotatable about the first swing link. The inserted moving rotary shaft, a first plate-like rod fixed at one end to the movable rotary shaft, and fixed to the other end of the first plate-like rod , via the first plate-like rod A rotatable first rotating shaft attached eccentrically with respect to the moving rotating shaft, a second sprocket which is rotatably attached to the other end of the first swing link and is different from the first sprocket, A moving rotation pin fixed to the second sprocket and rotatably inserted into the first swing link, a chain hung on the first and second sprockets, and one end rotatably attached to the moving rotation pin First swing link The other end is fixed and different from the second swing link, a rotatable support shaft that supports the second swing link fixed of record to the other end of the second swing link and one end the moving rotation pin A crank provided with a groove along the longitudinal direction, a rolling shaft movably fitted in the groove, a second plate-like rod having the rolling shaft fixed at one end, and the second plate A rotatable second rotating shaft fixed to the other end of the rod-shaped rod, and the first plate-shaped rod is reciprocated while alternately acting on the movable rotating pin and the first rotating shaft as fulcrums. The crank rotates while changing the distance between the moving rotating pin and the rolling shaft by the swing of the first swing link about the moving rotating shaft as a rotation center, and transmits the rotational force to the second rotating shaft. is, by changing the distance to the rolling axis from the mobile rotation pin, the second In a state where the rod and the crank are relatively vertical, the moving rotation pin is at a position below the second rotation shaft, and the movement rotation pin temporarily acts as a fulcrum and moves the movement rotation shaft. When the rolling shaft is moved, the rolling shaft moves in the groove to cause a temporary lever action to rotate.

上述したように、本発明の駆動倍力装置は、一時的にてこ作用を生じさせて負担を軽減させることができる。 As described above, the drive booster of the present invention can temporarily reduce the burden by causing a lever action.

本発明の実施形態を示す駆動倍力装置の斜視図The perspective view of the drive booster which shows embodiment of this invention 同駆動倍力装置の動作を側面から見た簡略図A simplified view of the operation of the drive booster from the side 同駆動倍力装置を自転車に実施した例を示す側面図Side view showing an example in which the same drive booster is implemented in a bicycle 同駆動倍力装置の他の実施例１Other embodiment 1 of the same drive booster 同駆動倍力装置の他の実施例２Another embodiment 2 of the same drive booster 同駆動倍力装置の他の実施例３Another embodiment 3 of the same drive booster 同駆動倍力装置の他の実施例４Another embodiment 4 of the same drive booster 同駆動倍力装置の他の実施例５Other embodiment 5 of the same drive booster 同駆動倍力装置の他の実施例６Another embodiment 6 of the same drive booster 同駆動倍力装置の他の実施例７Another embodiment 7 of the same drive booster

以下本発明の実施形態を図１〜図３に基づいて説明する。 Embodiments of the present invention will be described below with reference to FIGS.

本発明に係る駆動倍力装置は、いわゆる自転車等の駆動を補助する駆動補助装置であって、図１に示すように、回転力を伝達させるための第１スプロケット４が固定された第１回転軸１と、第２スプロケット５が固定されている移動回転ピン７とが、二つの物を連携させる第１揺動リンク２の両端に回転可能に挿通されて取り付けられ、第１揺動リンク２が第１回転軸１を回転中心として揺動可能とされている。これら第１および第２スプロケット４，５には、回転力を伝達させるチェーン３が掛けられている。さらに、第２揺動リンク９を支える回転可能な支軸１０が、二つの物を連携させる第２揺動リンク９の一端に固定され、この第２揺動リンク９の他端に、移動回転軸８が回転可能に挿通されて取り付けられている。 The drive booster according to the present invention is a drive assist device that assists in driving a so-called bicycle or the like, and, as shown in FIG. 1, a first rotation to which a first sprocket 4 for transmitting a rotational force is fixed. the shaft 1, and the moving rotation pin 7 which second sprocket 5 is fixed is mounted is rotatably inserted through the first ends of the swinging link 2 to link two things, first swing link 2 Is swingable about the first rotation shaft 1 as the center of rotation . A chain 3 for transmitting a rotational force is hung on the first and second sprockets 4 and 5. Furthermore, the rotatable shaft 10 supporting the second oscillating link 9 is fixed to one end of the second swing link 9 to link two things, the other end of the second swing link 9, the rotating transportation A shaft 8 is rotatably inserted and attached.

移動回転ピン７と移動回転軸８とを一時交互に支点作用にさせるとともに往復移動させるため第１板状の棒６が、移動回転ピン７と移動回転軸８とに固定されている。また、溝１４の側面を転がりながら移動する転がり軸１２が端部に固定された第２板状の棒１１が、移動回転軸８に固定されている。さらに、この転がり軸１２と第２回転軸１５との間の軸間の距離を変えながら回転するクランク１３が、回転力を伝達させる第２回転軸１５に固定されて回転可能とされ、このクランク１３の端部には溝１４が設けられている。よって、クランク１３の溝１４に嵌合された転がり軸１２を、第２板状の棒１１と相対的に、溝１４の側面を転がりながら移動することになる。このため、クランク１３が固定されている第２回転軸１５から、溝１４に嵌合された転がり軸１２までの間の軸間の距離を長くさせたり短くさせたりする際に、一時的にてこ作用を生じさせながら回転するようにできる。 A first plate-like rod 6 is fixed to the moving rotating pin 7 and the moving rotating shaft 8 in order to cause the moving rotating pin 7 and the moving rotating shaft 8 to alternately act as a fulcrum and to reciprocate. Further, a second plate-like rod 11 having a rolling shaft 12 that moves while rolling on the side surface of the groove 14 is fixed to the moving rotation shaft 8. Further, a crank 13 that rotates while changing the distance between the rolling shaft 12 and the second rotating shaft 15 is fixed to the second rotating shaft 15 that transmits the rotational force, and can rotate. A groove 14 is provided at the end of 13. Therefore, the rolling shaft 12 fitted in the groove 14 of the crank 13 moves relative to the second plate-like rod 11 while rolling on the side surface of the groove 14. For this reason, when the distance between the second rotating shaft 15 to which the crank 13 is fixed and the rolling shaft 12 fitted in the groove 14 is increased or decreased, the lever is temporarily used. It can be rotated while producing an action.

以下、図１の構成動作を図２−Ａから図３で説明する。図２−Ａおよび図２−Ｅに示すように、転がり軸１２が端部に取り付けられた第２板状の棒１１と、クランク１３とが相対的に垂直な状態の時点では、移動回転ピン７が第２回転軸１５より下の位置にあり、この移動回転ピン７を一時的に支点作用させるとともに移動回転軸８を移動させるため、第１回転軸１を回転中心とした第１揺動リンク２の揺動によって、移動回転ピン７から長い距離の位置にある転がり軸１２が、溝１４内を移動しながら、第２回転軸１５から短い距離の位置へ移動するとともに一時的なてこ作用を生じさせて回転する。このため、第２回転軸１５から出る回転力は、第１回転軸１の回転力より小さい回転力にできる。また、外部からの回転力で第２回転軸１５を回転させた場合には、第１回転軸１から出る回転力が、第２回転軸１５の回転力より大きな回転力にできる。 1 will be described below with reference to FIGS. As shown in FIGS. 2-A and 2-E, when the second plate-like rod 11 with the rolling shaft 12 attached to the end thereof and the crank 13 are in a relatively vertical state, the moving rotation pin 7 is located below the second rotary shaft 15, and the first rotary shaft 1 is used as the center of rotation to move the rotary shaft 8 while temporarily moving the movable rotary pin 7 as a fulcrum. As the link 2 swings , the rolling shaft 12 located at a long distance from the moving rotary pin 7 moves from the second rotary shaft 15 to a short distance while moving in the groove 14 and is temporarily leveraged. To rotate. For this reason, the rotational force output from the second rotational shaft 15 can be made smaller than the rotational force of the first rotational shaft 1. Further, when the second rotary shaft 15 is rotated by a rotational force from the outside, the rotational force output from the first rotary shaft 1 can be made larger than the rotational force of the second rotary shaft 15.

また、図２−Ｂ、図２−Ｄ、図２−Ｆおよび図２−Ｈに示すように、第２板状の棒１１と、クランク１３とが斜めに傾斜した状態の時点では、力のバランスが互いにつりあっているので、第１回転軸１と第１回転軸１５との回転力は同じである。 Further, as shown in FIG. 2-B, FIG. 2-D, FIG. 2-F, and FIG. 2-H, when the second plate-like rod 11 and the crank 13 are inclined, Since the balance is balanced with each other, the rotational forces of the first rotating shaft 1 and the first rotating shaft 15 are the same.

また、図２−Ｃおよび図２−Ｇに示すように、第２板状の棒１１と、クランク１３とが水平な状態の時点では、移動回転ピン７が第２回転軸１５に重なる同じ位置にあり、移動回転軸８を一時的に支点作用させるとともに、移動回転ピン７を移動させる。このため、第１回転軸１を回転中心とした第１揺動リンク２の揺動によって、移動回転軸８から短い距離の位置にある転がり軸１２が、第２回転軸１５から長い距離の位置にある溝１４内を転がりながら移動するとともに、一時的なてこ作用を生じさせて回転するため、第２回転軸１５から出る回転力を、第１回転軸１の回転力より大きくできる。また、外部からの回転力で第２回転軸１５を回転させた場合には、第１回転軸１から出る回転力が、第２回転軸１５の回転力より小さな回転力にできる。 Further, as shown in FIGS. 2C and 2G, when the second plate-like rod 11 and the crank 13 are in a horizontal state, the same position where the moving rotary pin 7 overlaps the second rotary shaft 15. The moving rotation shaft 8 is temporarily caused to act as a fulcrum, and the moving rotation pin 7 is moved. For this reason, the rolling shaft 12 located at a short distance from the moving rotational shaft 8 is moved from the second rotational shaft 15 at a long distance by the swing of the first swing link 2 around the first rotational shaft 1. In addition to moving while rolling in the groove 14, the rotating force generated from the second rotating shaft 15 can be made larger than the rotating force of the first rotating shaft 1. Further, when the second rotary shaft 15 is rotated by a rotational force from the outside, the rotational force output from the first rotary shaft 1 can be made smaller than the rotational force of the second rotary shaft 15.

図３に示すように、自転車に本発明を取り付けて作用させると、駆動力を一時的に増大させるポイントができ、後輪に作用させることができるから、走行時において常にペダルをこぐ足の負荷を、部分的に軽減させることができる。 As shown in FIG. 3, when the present invention is attached to a bicycle and operated, a point for temporarily increasing the driving force can be generated and applied to the rear wheel. Can be partially reduced.

以上にように、本実施形態によれば、部分的な倍力効果が得られる。 As described above, according to the present embodiment, a partial boost effect can be obtained.

以上本発明の実施形態を説明したが、本発明はその要旨を逸脱しない範囲で種々の設計変更を行うことが可能である。例えば、図４〜図１０は、図１に示した第１板状の棒６、第２板状の棒１１およびクランク１３の取り付け場所の変更ができる。また、移動回転ピン７にジョイントを直結させることもできる。なお、これら図４〜図１０において、図１に示す倍力駆動装置と同様の構成については、符号およびその説明を省略している。 Although the embodiments of the present invention have been described above, various design changes can be made without departing from the scope of the present invention. For example, in FIGS. 4 to 10, the mounting location of the first plate-like rod 6, the second plate-like rod 11 and the crank 13 shown in FIG. 1 can be changed. Further, a joint can be directly connected to the moving rotation pin 7. 4 to 10, the same reference numerals and descriptions are omitted for the same configurations as those of the booster driving device shown in FIG. 1.

すなわち、図６に示す他の実施例３のように、移動固定軸８にクランク１３が固定され、このクランク１３の溝１４内に転がり軸１２が移動可能に嵌合され、この転がり軸１２が第２板状の棒１１の一端に固定され、この第２板状の棒１１の他端に第２回転軸１５が固定されて回転可能とされた構成とすることもできる。この場合に、クランク１３は、第１回転軸１を回転中心とした第１揺動リンク２の揺動によって、移動回転軸８および転がり軸１２間の距離を変えながら回転し回転力を第２回転軸１５に伝達させ、移動回転軸８から転がり軸１２までの距離を変化させることによって、一時的にてこ作用を生じさせて回転させることができる。 That is, as in the third embodiment shown in FIG. 6, the crank 13 is fixed to the movable fixed shaft 8, and the rolling shaft 12 is movably fitted in the groove 14 of the crank 13. The second plate-like rod 11 is fixed to one end, and the second plate 15 is fixed to the other end of the second plate-like rod 11 so as to be rotatable . In this case, the crank 13 rotates while changing the distance between the moving rotary shaft 8 and the rolling shaft 12 by the swing of the first swing link 2 with the first rotary shaft 1 as the center of rotation, and the second rotational force is applied. By transmitting to the rotating shaft 15 and changing the distance from the moving rotating shaft 8 to the rolling shaft 12, the lever can be temporarily caused to rotate.

また、図７および図８に示す他の実施例４および５のように、第１揺動リンク２に移動回転軸８が回転可能に挿通され、第１回転軸１は、第１スプロケット４に移動回転軸８を介して固定された第１板状の棒６を介して、移動回転軸８に対して偏心させて回転可能に取り付けられ、移動回転ピン７の一端が第２スプロケット５に固定され、第２板状の棒１１の一端が移動回転ピン７の他端に固定され、第１揺動リンク２が移動回転軸８を回転中心として揺動可能とされ、これら移動回転ピン７および第１回転軸１を第１板状の棒にて交互に支点作用させつつ往復移動させる構成とすることもできる。この場合に、クランク１３は、移動回転軸８を回転中心とした第１揺動リンク２の揺動によって、第２回転軸１５および転がり軸１２間の距離を変えながら回転し回転力を第２回転軸１５に伝達させ、これら第２回転軸１５から前記転がり軸１２までの距離を変化させることによって、一時的にてこ作用を生じさせて回転させることができる。 Further, as in other embodiments 4 and 5 shown in FIGS. 7 and 8, the movable rotating shaft 8 is rotatably inserted into the first swing link 2, and the first rotating shaft 1 is inserted into the first sprocket 4. A first plate-like rod 6 fixed via the moving rotary shaft 8 is attached to the moving rotary shaft 8 so as to be eccentric and rotatable , and one end of the moving rotary pin 7 is fixed to the second sprocket 5. Then , one end of the second plate-like rod 11 is fixed to the other end of the moving rotation pin 7 , and the first swing link 2 can swing around the moving rotation shaft 8. Alternatively, the first rotating shaft 1 may be reciprocally moved while acting as a fulcrum alternately with the first plate-like rod. In this case, the crank 13 rotates while changing the distance between the second rotating shaft 15 and the rolling shaft 12 by the swing of the first swing link 2 about the moving rotating shaft 8 as the center of rotation, and the second rotational force is applied. By transmitting to the rotating shaft 15 and changing the distance from the second rotating shaft 15 to the rolling shaft 12, the lever can be temporarily caused to rotate.

さらに、図９および図１０に示す他の実施例６および７のように、他端に長手方向に沿った溝１４が設けられたクランク１３の一端が移動回転ピン７に固定され、転がり軸１２が第２板状の棒１１の一端に固定され、この第２板状の棒１１の他端に第２回転軸１５が固定されて回転可能とされ、これら移動回転ピン７および第１回転軸１を第１板状の棒６にて交互に支点作用させつつ往復移動させる構成とすることもできる。この場合に、クランク１３は、第１スプロケット４に固定され第１揺動リンク２に回転可能に挿通された移動回転軸８を回転中心とした第１揺動リンク２の揺動によって、移動回転ピン７および転がり軸１２間の距離を変えながら回転し回転力を前記第２回転軸１５に伝達させ、移動回転ピン７から前記転がり軸１２までの距離を変化させることによって、一時的にてこ作用を生じさせて回転させることができる。 Further, as in the other examples 6 and 7 shown in FIGS. 9 and 10, one end of the crank 13 having the groove 14 along the longitudinal direction at the other end is fixed to the moving rotation pin 7, and the rolling shaft 12 is fixed to one end of the second plate-like rod 11, and the second rotary shaft 15 is fixed to the other end of the second plate-like rod 11 so as to be rotatable . The rotary shaft 1 may be configured to reciprocate while acting as a fulcrum alternately with the first plate-like rod 6. In this case, the crank 13 is moved and rotated by swinging the first swing link 2 around the rotation shaft 8 fixed to the first sprocket 4 and rotatably inserted in the first swing link 2. Rotating while changing the distance between the pin 7 and the rolling shaft 12 to transmit the rotational force to the second rotating shaft 15, and changing the distance from the moving rotating pin 7 to the rolling shaft 12 makes a temporary action. Can be rotated.

１第１回転軸
２第１揺動リンク
３チェーン
４第１スプロケット
５第２スプロケット
６第１板状の棒
７移動回転ピン
８移動回転軸
９第２揺動リンク
１０支軸
１１第２板状の棒
１２転がり軸
１３クランク
１４溝
１５第２回転軸 DESCRIPTION OF SYMBOLS 1 1st rotating shaft 2 1st rocking | fluctuation link 3 chain 4 1st sprocket 5 2nd sprocket 6 1st plate-shaped rod 7 moving rotation pin 8 moving rotating shaft 9 2nd rocking link 10 support shaft 11 2nd plate-shaped Rod 12 Rolling shaft 13 Crank 14 Groove 15 Second rotating shaft

Claims

A first swing link;
A first sprocket rotatably attached to one end of the first swing link;
A first rotating shaft fixed to the first sprocket and rotatably inserted in the first swing link; and allowing the first swing link to swing .
A second sprocket that is rotatably attached to the other end of the first swing link and is different from the first sprocket;
A moving rotation pin fixed to the second sprocket and rotatably inserted into the first swing link ;
A chain hung on the first and second sprockets;
A second swing link different from the first swing link;
A rotatable support shaft fixed to one end of the second swing link and supporting the second swing link;
And moving the rotation axis to link the movement of the first and second swing link at the support shaft rotatably mounted to the other end of the second rocking link,
A first plate-like rod that is fixed between the moving rotary pin and the moving rotary shaft, and reciprocates while the moving rotary pin and the moving rotary shaft act alternately as fulcrums;
A second plate-like rod fixed to the movable fixed shaft;
A crank provided with a groove along one longitudinal direction at one end;
A rolling shaft fixed to one end of the second plate-like rod and movably fitted in the groove;
A rotatable second rotating shaft fixed to the other end of the crank,
The crank rotates while changing the distance between the second rotating shaft and the rolling shaft by the swing of the first swinging link with the first rotating shaft as the center of rotation, and the rotational force is applied to the second rotating shaft. The distance between the second rotating shaft and the rolling shaft is changed, and the movable rotating pin is moved from the second rotating shaft in a state where the second plate-like rod and the crank are relatively perpendicular to each other. At the lower position, when the moving rotation pin is temporarily acted as a fulcrum and the moving rotation shaft is moved, the rolling shaft moves in the groove to cause a temporary lever action to rotate. A drive booster characterized by:

A first swing link;
A first sprocket rotatably attached to one end of the first swing link;
A first rotating shaft fixed to the first sprocket and rotatably inserted in the first swing link; and allowing the first swing link to swing .
A second sprocket that is rotatably attached to the other end of the first swing link and is different from the first sprocket;
A moving rotation pin fixed to the second sprocket and rotatably inserted into the first swing link ;
A chain hung on the first and second sprockets;
A second swing link different from the first swing link;
A rotatable support shaft fixed to one end of the second swing link and supporting the second swing link;
And moving the rotation axis to link the movement of the first and second swing link at the support shaft rotatably mounted to the other end of the second rocking link,
A first plate-like rod that is fixed between the moving rotary pin and the moving rotary shaft, and reciprocates while the moving rotary pin and the moving rotary shaft act alternately as fulcrums;
A crank provided with a groove along one longitudinal direction at one end and fixed to the movable fixed shaft;
A rolling shaft movably fitted in the groove of the crank;
A second plate-like rod with the rolling shaft fixed at one end;
A rotatable second rotating shaft fixed to the other end of the second plate-like rod,
The crank rotates while changing the distance between the moving rotating shaft and the rolling shaft by the swing of the first swing link about the first rotating shaft, and transmits the rotational force to the second rotating shaft. And changing the distance from the moving rotating shaft to the rolling shaft , and the moving rotating pin is below the second rotating shaft in a state where the second plate-like rod and the crank are relatively perpendicular to each other. When the moving rotation pin is temporarily moved to act as a fulcrum, and the moving rotation shaft is moved, the rolling shaft moves in the groove to temporarily generate a lever action and rotate. A drive booster characterized by.

A first swing link;
A first sprocket rotatably attached to one end of the first swing link;
A moving rotary shaft fixed to the first sprocket and rotatably inserted into the first swing link;
A first plate-like rod having one end fixed to the moving rotation shaft ;
A rotatable first rotating shaft fixed to the other end of the first plate-like rod and attached eccentrically with respect to the moving rotating shaft via the first plate-like rod ;
A second sprocket that is rotatably attached to the other end of the first swing link and is different from the first sprocket;
A moving rotation pin fixed to the second sprocket and rotatably inserted into the first swing link ;
A chain hung on the first and second sprockets;
A second rocking link having one end rotatably attached to the moving rotation pin and different from the first rocking link;
A rotatable support shaft fixed to the other end of the second swing link and supporting the second swing link;
A second plate-like rod having one end fixed to the moving rotation pin;
A crank provided with a groove along one longitudinal direction at one end;
A rolling shaft fixed to the other end of the second plate-like rod and movably fitted in the groove;
A rotatable second rotating shaft fixed to the other end of the crank,
The first plate-like rod is reciprocated while alternately acting on the movable rotation pin and the first rotation shaft as a fulcrum,
The crank rotates while changing the distance between the second rotating shaft and the rolling shaft by the swing of the first swinging link with the moving rotating shaft as the center of rotation, and the rotational force is transmitted to the second rotating shaft. The distance between the second rotation shaft and the rolling shaft is changed, and the moving rotation pin is below the second rotation shaft in a state where the second plate-shaped rod and the crank are relatively perpendicular to each other. When the moving rotation pin is temporarily operated as a fulcrum and the moving rotation shaft is moved, the rolling shaft moves in the groove to cause a temporary lever action to rotate. A drive booster characterized by.

A first swing link;
A first sprocket rotatably attached to one end of the first swing link;
A moving rotary shaft fixed to the first sprocket and rotatably inserted into the first swing link;
A first plate-like rod having one end fixed to the moving rotation shaft ;
A rotatable first rotating shaft fixed to the other end of the first plate-like rod and attached eccentrically with respect to the moving rotating shaft via the first plate-like rod ;
A second sprocket that is rotatably attached to the other end of the first swing link and is different from the first sprocket;
A moving rotation pin fixed to the second sprocket and rotatably inserted into the first swing link ;
A chain hung on the first and second sprockets;
A second rocking link having one end rotatably attached to the moving rotation pin and different from the first rocking link;
A rotatable support shaft fixed to the other end of the second swing link and supporting the second swing link;
A crank having one end fixed to the moving rotation pin and the other end provided with a groove along the longitudinal direction;
A rolling shaft movably fitted in the groove;
A second plate-like rod with the rolling shaft fixed at one end;
A rotatable second rotating shaft fixed to the other end of the second plate-like rod,
The first plate-like rod is reciprocated while alternately acting on the movable rotation pin and the first rotation shaft as a fulcrum,
The crank rotates while changing the distance between the moving rotating pin and the rolling shaft by the swing of the first swing link about the moving rotating shaft as a center of rotation, and transmits the rotational force to the second rotating shaft. The distance between the moving rotating pin and the rolling shaft is changed, and the moving rotating pin is positioned below the second rotating shaft in a state where the second plate-like rod and the crank are relatively perpendicular to each other. And when the moving rotation pin is temporarily acted on as a fulcrum and the moving rotation shaft is moved, the rolling shaft moves in the groove to cause a temporary lever action to rotate. Drive booster.