The invention relates to a fitness bike with an upper limb driving device. The front end of a bike body is connected with the upper limb driving device, and a real wheel is installed at the rear end of the bike body. The upper limb driving device comprises a driving box, a shaft A, a shaft B, a shaft C, an idler shaft and a bearing A, wherein the shaft A, the shaft B, the shaft C, the idler shaft and the bearing A are arranged in the driving box. An idler is arranged on the idler shaft, a gear D and a gear E are fixedly arranged on the shaft B, a sector gear meshed with the gear D is arranged on the gear A, the sector gear is fixed to the shaft A through the bearing A, a gear B and a gear C are further fixedly arranged on the shaft A, the gear C is meshed with the idler, a gear A matched with the gear E is fixedly arranged on the shaft C, an overrun clutch A and an overrun clutch B are further arranged on the shaft C, the overrun clutch A is meshed with the gear B, and the overrun clutch B is meshed with the gear C. The fitness bike has the advantages that force can be increased when the fitness bike is pushed forwards or pulled backwards, and the fitness bike is comfortable and easy and fast to use and achieves the effect of building up the body.
Fitness bike with upper limb driving device
2015-06-24
Patent
Electronic Resource
English