Study of self-locking property of belt and its application products

从理论上阐明了绕轴缠绕两到三次的皮带的自锁特性，并进行了实验验证。利用这一特性，开发了结构简单的离合器，即使在偏心情况下也能传递扭矩。从几何角度推导了离心距离与相应角速度变化的关系。通过实验证实了这一理论关系。利用上述离合器研制了三轮车。实验证实，离合器工作正常，三轮车运行平稳，无振动。

The self-locking property of a belt wrapped two or three times around an axis was clarified theoretically and was confirmed experimentally. By utilizing this property, a simple structured clutch was developed, which can transmit torque even in an off-centered condition. The relation between the off-centered distance and the corresponding variation of angular velocity was derived from geometrical viewpoint. The theoretical relation was confirmed by means of experiments. A tricycle was developed by using the clutch mentioned above. Experiments confirmed that the clutch works properly and that the tricycle runs smoothly without any vibration.