Helical compression spring coils arrangement for wheels suspension of motor vehicle, has sets of coils whose stiffness are greater than that of third set of coils so that one of sets of coils is compressed or stretched from third set

摘要

The arrangement has a set of helical coils (5) with determined stiffness, extending along an axis, and other sets (7, 8) of helical coils with determined stiffness arranged inside the set of helical coils (5). The stiffness of the sets of the helical coils (7, 8) are greater than the stiffness of the set of coils (5) so that the set of the coils (7) with the stiffness less that the stiffness of the set (8) of the coils is compressed or stretched from the set of coils (5). The coils are made of metallic material such as steel or composite material.