Provided is an upward and downward pedaling type bicycle for the aged. The distance between pedals and a seat and the position of the seat can be adjusted without tools, and when the aged go out for entertainment, they can sit on the seat. The bicycle includes the seat, a rear frame, a rear axle, a chain, an upper-lower pedal gear box, a tightener, a front frame, a front fork, a protective basket, and a small front wheel. The distance between the rear frame and the front frame is adjusted by a screw rod, and a rotary seat is arranged on the rear frame to adjust the position of the seat. The bicycle is suitable for network sale, and is not available at home and abroad at present.
Upward and downward pedaling type bicycle for the aged
2015-09-23
Patent
Elektronische Ressource
Englisch