UA49168A - Bicycle drive - Google Patents

Abstract

Drive of a bicycle has a housing, axle, connecting rods, fixed at it at opposite sides, a driving star, this is installed at the same axle, an appliance for transmission of direct rotation of the axle to the driven star, an appliance for transformation of back rotation of the axle to direct one, with transmitting it to driving star. Appliance for transmitting direct rotation is made as a free-wheel clutch, with its driven chain made in the housing of the driving star, and the driving chain is installed on the axle. Appliance for transforming back rotation of the axle to direct, with transmitting it to the driving star, includes a freely installed on one axle with the axis conical pinion, and a made together with the driving star, at the same axle, second conical pinion; those are connected to each other with an additional pinion, installed from the outside of the housing. This unit is as well equipped with a free-wheel clutch, installed in counter direction to the first one, at that the driving chain of the second free-wheel clutch is installed at the axle, and the driven chain is arranged in the housing of the first conical pinion. Possibility of automated kinematical coupling in the given direction of the driving star and the axle is provided, at direct and backward rotation of the axle.