Patent ID: 6494300
Filing Date: 2002-12-17
Classification: B29C,B29L,D06F,F16F

Abstract:
A method for making a friction damper for linen washing machines which comprise a damper rod which is telescopically driven inside a mantle, and at least a friction element, to be arranged between said rod and mantle and housed in a housing cavity therefor, said method comprising a first molding step for molding a friction damper casing having a hole for housing said rod and a friction element housing cavity, and a second operating step for making, in said cavity, a plurality of restraining undercut portions for restraining said friction element, said first and second steps being carried out either simultaneously or in succession, wherein in that in said first molding step, a mold male element, by operating in an axial direction, provides said hole for housing therein said damper rod abutment there against a bottom portion of said friction element, said housing cavity having an inner surface mating with an outer surface of said friction element for fitting therein said friction element and a plurality of upward open recesses in said housing cavity, said upward open recesses being made in said first step.