The invention provides a bicycle without a center shaft, which belongs to the technical field of bicycles, and aims to solve the problems that in the driving process of an existing chain type bicycle, the center position of a person is high, the stability of the bicycle is poor, the person easily falls down during collision, and the person is easily injured. Through the lever transmission mode, the problems that the chain is loosened and slips, and the chain falls off or is broken due to long using time of thebicycle chain can be effectively avoided. The bicycle without a center shaft comprises a main rim, a U-shaped support, a driven device, a driving device, a supporting device and a steering device. By means of the design, a person sits in a wheel, the gravity center position of the person is below the center line of the wheel, the stability of the bicycle is better in the riding process, and the person is not prone to being injured when collided; through lever driving, power directly acts on the main rim, the situation that a chain falls is avoided, the service life is longer, and more labor is saved.
本发明提供了无中轴自行车,属于自行车技术领域,旨在解决现有链条式自行车,在驾驶过程中,人的中心位置较高,自行车的稳定性不好,发生碰撞时容易摔倒,人员容易受伤,通过杠杆传动方式,有效避免了因自行车链条使用时间较长后,链条松动打滑,出现掉链子或链条断裂的问题;包括主轮圈、U型支架、从动装置、驱动装置、支撑装置和转向装置,本发明的设计,人员坐在车轮中,人的重心位置在车轮中心线下方,行驶过程中自行车的稳定性更好,发生碰撞时人员不容易受伤;通过杠杆驱动,动力直接作用到主轮圈上,不会出现掉链子的情况,使用寿命更长且更省力。
Bicycle without center shaft
无中轴自行车
07.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC: | B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |
Power transmission mechanism of bicycle without center shaft
Europäisches Patentamt | 2024
|Center shaft bowl group structure for electric bicycle
Europäisches Patentamt | 2021
|