Spiral spring is made from wire whose cross-section is not circular, but has height which is greater than its breadth, height being positioned in direction of compression and stretching

摘要

The spiral spring is made from wire whose cross-section (1) is not circular, but has a height (h) which is greater than its breadth (b), the height being positioned in the direction of compression and stretching (z). The wires may have a rectangular, elliptical, C-, S- or Z-shaped cross-section.