Stability maintaining and shock absorbing front fork assembly for

Abstract

A stability maintaining and shock absorbing bicycle front fork assembly comprises a steering spindle for pivotal mounting on a bicycle front frame. A single arm fork member having top and bottom ends is rigidly attached adjacent its top end to tope and bottom crown members rigidly attached to the steering spindle. A swing arm assembly is mounted on the single arm fork member to define a swing arm pivot axis oriented generally parallel to the displaceable axis of rotation, for pivotal movement of the swing arm assembly between a forward position, at which the swing arm assembly extends downwardly and rearwardly from the swing arm pivot axis and wherein the displaceable axis of rotation is disposed forwardly of the steering axis and rearwardly of the swing arm pivot axis, and a trailing position at which the displaceable axis of rotation is disposed closer to the steering axis than when in the forward position. A hub defining the displaceable axis of rotation is disposed on the swing arm assembly so as to permit mounting of a front bicycle wheel thereon. A pivotally jointed linkage arm assembly is pivotally mounted at its ends to the single arm fork member and to the swing arm assembly, respectively, and includes a lower linkage arm and an upper shock linkage arm assembly pivotally connected one to the other. A shock absorber is operatively mounted between the single arm fork member and the upper shock linkage arm assembly, to bias the swing arm assembly to its forward position.