Method for assembling hard piece e.g. anchor, on axle in horlogical applications, involves compressing ring between axle and piece without being in contact with piece so as to generate friction between ring and washer

摘要

The method involves obtaining a hard piece with an opening for allowing free passage of an axle (10). An elastic ring (18) is mounted on the piece. Axial and angular positions of the ring are blocked with reference to the piece by a washer (20) mounted on the axle. The ring is compressed between the axle and the piece without being in contact with the piece so as to generate friction between the ring and the washer or between the ring and an escapement wheel (12) for connecting the wheel and the axle. The hard piece is made of silicon, corundum or diamond based materials. An independent claim is also included for an assembly for assembling a hard piece on an axle.