| 摘要 |
PURPOSE:To make a deflection-stress characteristic curve of a spiral or coil spring parabolic by smoothly increasing or decreasing the cross-sectional area of the material of the spring from its one end to the other. CONSTITUTION:A spring material A has a cross-sectional shape of a circle, ellipse, or polygon to be formed into a spiral or coil spring. The cross-sectional area of the material A is smoothly increased or decreased so that the area is the smallest at one end 1 of the material and the greatest at the other end 2. The spring constituted in this way begins, when loaded, to deflect from a thinner diameter side and thicker windings come into contact with each other gradually in sequence so that a parabolic spring characteristic cure is obtained. In this way, an initial stress can be made smaller while shocks are easily absorbed and transition toward a large final reaction force can be made smooth. |
