| 摘要 |
A bicycle comprises a frame, a seat, a steering wheel, two forks, wheels. A fastener of the rear wheel is made in the form of a whole structure attached to the frame welded of metal tubes in the form of two rectangles with rounded corners, which are arranged at an acute angle and are connected at the bottom in the locations of fasteners for two wheels in the form of slits, where the wheel axle is inserted. Inside the rectangles the frames with a second inner fastener of wheels are placed. Between the frame and rectangle a hole is located to accommodate two wheels. The frames are connected by tubes in the middle, on which a cargo basket is mounted, and by one tube at the bottom. Inside the lower tube an axle with two sprockets is located, one of which is located in the middle of the rear axle and connected to a chain of bicycle pedal, and the other sprocket through the axle and other chain is connected to the wheel, which is the master. The sprockets are mounted on bearings. From above of the structure in the gap between rectangles over the wheels a metal cargo basket is mounted. On the side of structure adjacent to the frame a mount is made that secures the entire structure with a luggage carrier to the frame, and below by two other bolts is attached to the fasteners for wheels. |
