UNIVERSAL FOLDING BICYCLE

摘要

PURPOSE: A universal foldable bicycle is provided to functionally manufacture various types of bicycles by changing position of all parts which is structurally and ergonomically important. CONSTITUTION: A universal foldable bicycle comprises a front wheel(22), a front swing arm(4), a handle bar(9), a rear wheel(13), and a saddle(16). The front swing arm is attached on a head assembly(2) of a frame through a front arm(1). The handle bar is attached through a rotating joint(5), a telescopic rod(6), a handle bar shaft(8), or a handle bar attachment member(7). The rear wheel is attached in a rear swing arm(10) connected to a central assembly(11) mounted on the frame. The saddle is mounted on a telescopic stem(15) and attached to the end of the frame directly or with a pin(14). The front arm and the front swing arm are connected each other by a front joint(17) and a front wheel telescopic spring device(18) or the front joint and a front wheel spring device(19).