Axially resilient, canted-coil spring with turn angle and seal

摘要

A garter-type axially resilient coil spring (12) includes a plurality of coils (14) canted along a centerline (56) thereof with each coil (14) having a trailing portion (50) and a leading portion (62). The disposition of the trailing portion (50) is defined by a back angle (52) between the trailing portion (50) and a line (54) normal to the center­line (56) and the disposition of the leading portion (62) is defined by a front angle (60) between the leading portion (62) and a normal line (54). Specific resilient performance, or load-characteristics, of the springs (12) are obtained by controlling a turn angle (ϑ) of the coil spring (12). At selected turn angles (ϑ), springs (12) exhibit a resilient working area bounded by steep load-deflection characteristics.