WHEELED VEHICLE OF WHICH THE AXLE OF THE DRIVE WHEEL IS CARRIED BY AN OSCILLATING ARM AND OF WHICH THE DRIVE TORQUE IS TRANSMITTED TO THE DRIVE WHEEL BY CHAIN AND SPROCKETS

摘要

P The wheeled vehicle comprises a chassis (1) and a drive wheel (13) whose hub axis is carried by an oscillating arm (14) and whose engine torque is transmitted to the drive wheel (13) by a transmission by chain (11) and sprockets, one of which is driving (10) and receives the engine torque to be transmitted and the other (12) is driven and is coupled to the driving wheel (13) of the vehicle. The chain (11) between the two pinions forms two strands, one of which is in traction (the upper strand) and transmits the engine torque between the driving pinion and the driven pinion. The swing arm (14) is secured by an articulated system (15) to the chassis (1) and the instantaneous center of rotation of the swing arm (14), determined by said articulated system (15), is located in the linear extension of the strand of chain traction, or in the immediate vicinity of the latter. /P