Patent ID: 7628042
Filing Date: 2009-12-08
Classification: D06F,F16C

Abstract:
1. A device coupling and locking a drum supporting arm to a U-bracket in a linen washing machine, said drum supporting arm having an end supporting arm throughgoing hole and said U-bracket having opposite U-bracket prongs, each said U-bracket prong including a U-bracket prong throughgoing hole, wherein said device comprises a resilient bush element engaged in said end supporting arm throughgoing hole of said drum supporting arm between said throughgoing holes of said U-bracket prongs, a tubular smooth deformable metal element, having a first end portion and a second end portion and engageable through said U-bracket prong throughgoing holes and through said resilient bush element and a deforming punch element, said deforming punch element having a plurality of bottom vertically radially extending circumferentially spaced deforming ridges, thereby as said punch element is pressed through said first and second end portions of said tubular smooth deformable metal element, an inner and an outer surface of said first and second end portions are so deformed to form inner circumferentially spaced vertical grooves and corresponding outer circumferentially spaced outer projections as to lock said drum supporting arm to said U-bracket prongs.