Patent ID: 8186659
Filing Date: 2012-05-29
Classification: B60G,F16F

Abstract:
1. A suspension device with upper and lower laminated spring leaves for suspension of an axle from a vehicle body, comprising spring leaves, each of the spring leaves having paired curved portions symmetrically S-shaped in side view with respect to a connected position of the axle, continuous and mutually reverse curves of each of the curved portions of the upper spring leaf having a curvature radius greater than a curvature radius of continuous and mutually reverse curves of each of the curved portions of the lower spring leaf, the curved portions of the upper spring leaf having longitudinally outward bend starts longitudinally outward of longitudinally outward bend starts of the curved portions of the lower spring leaf and having longitudinally inward bend ends longitudinally inward of longitudinally inward bend ends of the curved portions of the lower spring leaf, wherein each of the spring leaves is straight between the paired curved portions; and interplate rubber members interposed between abutting front and rear ends of the spring leaves.