Curved helical compression spring

Abstract

The present invention is directed to a curved helical compression spring having a plurality of coils along a curved coil axis. Each coil constituting the helical compression spring is increased and decreased in diameter, and the order of the increased diameter and the decreased diameter of each coil is reversed at a predetermined position on the longitudinal axis of the helical compression spring, so as to provide the curved coil axis, such as the coil axis curved in C-shape. For example, one section of each coil having approximately a half of the circumference of each coil, which is divided by a plane including the coil axis, is increased in diameter, whereas the other one section of approximately a half of the circumference of each coil is decreased in diameter. The curved helical compression spring may be mounted on a vehicle suspension.

Dependencies are inferred from the claim text.