| 摘要 |
PURPOSE:To equalize the distribution of stress by integrally and projectionally providing a tapered part whose thickness is varied in its longitudinal direction and a longitudinal rib projecting in the thickwise direction to a plate spring body having a almost fixed width. CONSTITUTION:A plate spring 1 contains a stripped body 2 provided projectionally with a rib extending in the longitudinal direction and projecting in the thickwise direction, which is integrally molded of FRP. And, the plate spring 1 is supported by a hanger, etc., at the basal part 4, and its free end 5 is connected with an automobile body, etc., through a eyehole part 6. In this case, for the body 2, its width B is made almost constant over the effective length l0, and a tapered part 7 whose thickness t1 is gradually reduced toward the basal part is formed in the range of length l2 between the basal part 4 and the free end 5. Also, for the rib 3, a tapered part whose length To is gradually increased toward the basal part over the range of length is formed, and the total cross sections of both the tapered part 7 and the rib 3 are almost equalized in each position in the longitudinal direction. |
