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CN2046484U - 自行车变速省力链轮 - Google Patents

自行车变速省力链轮 Download PDF

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Publication number
CN2046484U
CN2046484U CN 89211032 CN89211032U CN2046484U CN 2046484 U CN2046484 U CN 2046484U CN 89211032 CN89211032 CN 89211032 CN 89211032 U CN89211032 U CN 89211032U CN 2046484 U CN2046484 U CN 2046484U
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China
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utility
model
saving
chain wheel
bicycle
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CN 89211032
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English (en)
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伍冰
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Priority to CN 89211032 priority Critical patent/CN2046484U/zh
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Abstract

该自行车变速省力链轮,由采用非圆曲线作节圆曲线的链轮,沿用现有圆链轮的齿形、节距和厚度,选用恰当的模数和齿数构成,加工工艺简单,成本低,不需要改变现有自行车的外形和其他零部件,与同型号的现有圆链轮相比,具有当脚踏柄在垂直区间时能获得较大的牵引力,而在水平区间时能获得较大的线速度,骑行平稳、舒适、省力、惯量大等优良性能。特别适用于在丘陵地区坡度起伏的公路上行驶的自行车上安装使用。

Description

本实用新型属于自行车的一种传动装置,是通过变化瞬时速度来达到省力目的的专用传动装置。
目前使用的自行车、三轮车等人力脚踏车链轮,均采用圆链轮,在上坡时,脚踏柄转至垂直区间后,由于车架限制,往往使不上劲,力的传动效率降低,而感到十分吃力,这就需人体付出比较大的牵引力,无用功增加,否则难以上坡,且容易倒车、停车。
本实用新型的目的在于克服现有技术中的上述不足之处而提供一种具有省力、舒适、平稳、惯量大,并在脚踏柄处于垂直区间时有较大的牵引力,上坡时不易倒车、停车等优点的自行车变速省力传动链轮,特别适用于在丘陵地区坡度起伏的公路上行驶的自行车上安装使用。
本实用新型的目的是通过下列途径来实现的。变速省力链轮由采用非圆曲线作节圆曲线的变速链轮,以及链轮上的带动链条的链齿和与脚踏柄传动轴连接的轴孔组成。
本实用新型的变速省力链轮结合附图中的实施例作进一步的详细描述:
图1自行车变速省力链轮示意图
如图1所示,本实用新型的变速省力链轮由采用非圆曲线作节圆曲线链轮(1),以及链轮(1)上沿用现有圆链轮的齿形、节距和厚度,选用恰当的模数和齿数的带动链条的链齿(2)和链轮(1)中心与脚踏柄传动轴连接的轴孔(3)组成。
本实用新型的变速省力链轮与现有圆链轮相比有如下优点:当脚踏功率一定时,可根据需要选择适当的非圆曲线作节圆曲线,以增大当脚踏柄处于垂直区间时的牵引力。与同型号的圆链轮相比,能保持相同的平均线速度,省力、舒适、惯量大,脚踏柄处于垂直位置时乘骑轻,上坡时效果更明显,且不易倒车、停车,加工工艺简单,成本低,装卸方便,不需要改变自行车外型和其他零部件。

Claims (1)

1.一种自行车变速省力链轮,包括带动链条的链齿(2)和与脚踏柄传动轴连接的轴孔(3),其特征在于还有采用非圆曲线作节圆曲线的链轮(1)。
CN 89211032 1988-12-28 1988-12-28 自行车变速省力链轮 Withdrawn CN2046484U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 89211032 CN2046484U (zh) 1988-12-28 1988-12-28 自行车变速省力链轮

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 89211032 CN2046484U (zh) 1988-12-28 1988-12-28 自行车变速省力链轮

Publications (1)

Publication Number Publication Date
CN2046484U true CN2046484U (zh) 1989-10-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 89211032 Withdrawn CN2046484U (zh) 1988-12-28 1988-12-28 自行车变速省力链轮

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CN (1) CN2046484U (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5611744A (en) * 1994-02-22 1997-03-18 Sichuan Xinxin Mechanical Engineering Co., Ltd. Bicycle crank driven chain wheel assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5611744A (en) * 1994-02-22 1997-03-18 Sichuan Xinxin Mechanical Engineering Co., Ltd. Bicycle crank driven chain wheel assembly

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