Anti-vibration element for use with hand tools including motor-driven chainsaw consists of coil spring with tapered ends engaging cylindrical stops with spiral grooves

摘要

The spring (2) forms an elongated spiral whose ends (7) have a smaller diameter than the central portion. The wire forming the spring is of circular cross-section. The last turns (80,81) of the tapered portions of the spring (11,12) engage in spiral semicircular-section grooves (75) in generally cylindrical portions (26a) of end stops (26).