JPS6412981A - Front-wheel suspension system for saddling type four-wheel car - Google Patents

Abstract

PURPOSE: To improve the follow-up performance of a front suspension by arranging a pivot shaft so that the extension line in the direction orthogonally intersecting the pivot shaft of a front suspension arm intersect the extension line of the center axis of a foot rest. CONSTITUTION: The body frame 1 of a saddle type four-wheel vehicle comprises the tip sections 5a of a pair of lower frames 5 folding forward in the directions increasingly separated from each other. The pivot shafts 7 of right and left suspension arms 4 are rockably supported on the tip sections 5a of the frames 5 through brackets 6. In this case, the pivot shafts 7 are pivotally supported in such a way that a line (l) in the direction orthogonally intersecting the pivot shaft 7 and the extension line (m) of the center axis of a foot rest 8 intersect each other. In this constitution, when the front wheels 2 runs on an obstacle such as a stone, the direction of the impact acting on the front wheels 2 and the axial direction of the pivot shaft 7 are made different from each other so that the impact acting on the wheels can be absorbed.