Patent ID: 7797971
Filing Date: 2010-09-21
Classification: D06F,F16F

Abstract:
1. A drum washing machine which has a suspension for supporting a water tub for vibration proof, the water tub being enclosed in a drum, the suspension comprising: a cylindrical bearing support; a pair of bearings fixed in an interior of the bearing support; a shaft supported on the bearings so that the shaft is linearly reciprocated relative to the bearings; a cylindrical friction member damping an amplitude of the water tub by a frictional force due to friction between the shaft and the friction member resulting from relative reciprocation of the shaft, the friction member being disposed between the bearings so as to be immovable relative to the bearing support; and a lubricant applied between the shaft and the friction member, wherein: the friction member has both ends formed with abutment slant faces having outer diameters gradually reduced toward distal ends thereof, respectively, the drum washing machine further comprising a pair of holding members provided in the bearing support for holding the ends of the friction member; gaps are defined between the friction member and the holding member respectively; and a plurality of lubricant reservoirs are defined in the respective gaps to reserve the lubricant supplied between the shaft and the friction member.