SLIP-OFF PREVENTING METHOD AND DEVICE AND STOPPING RING

摘要

PROBLEM TO BE SOLVED: To attain SLIP OFF prevention which eliminates axial rattling between the substances. ;SOLUTION: In this device, a circular groove 11 having a V-shaped section is formed on an outer peripheral surface of a piston JT as a first substance having a cylindrical outer surface, so as to regulate axial positions of the piston JT and a magnet MN fitted to an outer peripheral surface of the piston JT as a second substance. A stopping ring 3 is so fitted that its inner peripheral edge is fitted to the groove 11 and outer peripheral edge is pressed against an end face of the magnet MN. The magnet MN is relatively energized in respect to the piston JT by the elasticity of the stopping ring 3 in an axial direction.;COPYRIGHT: (C)1998,JPO