| 摘要 |
PURPOSE:To prevent the breakage of a leaf spring by making the one end cantilever supporting part of said leaf spring made of ceramic, etc. wider than the other end load supporting part and reducing stress on a side end edge. CONSTITUTION:A leaf spring 4 is formed into a triangular shape in which the board width of its cantilever supporting part is approx. 36mm while both side edge parts 9 are at an angle of approx. 30 deg. to an axial direction. When a load is applied to the leaf spring 4, the highest stress part is generated at the center part of the cantilever supporting part, while stresses in the vicinity of both side edge parts 9 are relatively low. That is, the stress values are, approx. 20-25kgf/mm<2> in a zone 6, approx. 25-30kgf/mm<2> in a zone 7, and approx. 30kgf/mm<2> or more in zones 8. Accordingly, any breakage starting from the side edge parts 9 of the cantilever supporting part of the leaf spring 4 can hardly occur. |
