Patent ID: 6702312
Filing Date: 2004-03-09
Classification: B62J,B62K,B62M

Abstract:
A universal folding bicycle consisting of a frame, handlebars, front and rear wheels, a seat, and a central assembly with attached pedals with cranks, wherein:a front swing arm with the front wheel are attached to a head assembly of the frame at a front arm; the freely adjustable handlebars are attached to the head assembly either via a rotary joint and a telescopic rod and a handlebar axis or via a handlebar attachment, the back wheel is attached to a back swing arm connected to a central assembly formed by the pedals and cranks and mounted on the frame, the seat on a telescopic stem is attached to an end of the frame or via a pin to a beginning of the frame, the front arm and the swing front arm are interconnected by a front joint and are sprung either by telescopic front wheel springing or by front wheel springing, the back swing arm is connected to the end of the frame and is sprung either by back wheel telescopic springing or by back wheel springing, the front wheel is attached by means of a unilateral free bearing to the front swing arm, the back wheel is attached by means of a unilateral free bearing to the back swing arm, and the telescopic front wheel springing or the front wheel springing, the rotary joint, the telescopic back wheel springing or the back wheel springing, the handlebar axis, and the cranks with pedals are all equipped with quick releases.