Spring e.g. spiral spring, has link arms, each with one end connected to inner edge of outer support plate and other end to outer edge of inner support plate, where ends are moved with respect to each other around spring axis

摘要

The spring has outer and inner support plates (3, 2) that are coaxial, parallel and connected by link arms (4-6). Each of the arms has an end (7) connected to an inner edge of the outer plate and an end (8) connected to an outer edge of the inner plate. The arms extend between the plates in a manner that their ends are moved with respect to each other around the spring axis.