Nhk Spring Co., Ltd.

Hino Motors, Ltd.

Koko Fukunaga

Mitsuru Enomoto

Kaoru Nakamura

Interplate rubber membersare interposed between abutting front and rear ends of spring leavesA andB. The spring leavesA andB have paired curved portionsA andB, respectively, which are symmetrically S-shaped with respect to a connected position of an axlein side view. A curvature radius of continuous and mutually reverse curves of each of the curved portionsA of the upper spring leafA is greater than a curvature radius of continuous and mutually reverse curves of each of the curved portionsB of the lower spring leafB. The upper curved portionsA have longitudinally outward bend starts longitudinally outward of longitudinally outward bend starts of the lower curved portionsB and have longitudinally inward bend ends longitudinally inward of longitudinally inward bend ends of the lower curved portionsB.

Growing community of inventors

Hino, Japan

Koko Fukunaga