Drum type washing machine

Abstract

A drum type washing machine is provided having a simplified drive unit support structure design and improved vibration dispersion characteristics. The washing machine includes a tub, a drum disposed inside the tub, a shaft coupled to the drum, a bearing supporting the shaft, a bearing housing supporting the bearing, and a base secured to the tub. The bearing housing has a rear end protruding from a rear wall of the tub, and the tub has an extension facing an outer peripheral surface of the rear end of the bearing housing.

1 . A drum type washing machine, comprising:
 a tub;   a drum disposed inside the tub;   a shaft coupled to the drum;   a bearing supporting the shaft;   a bearing housing supporting the bearing; and   a base secured to the tub,   wherein the bearing housing has a rear end protruding from a rear wall of the tub, and the tub has an extension facing an outer peripheral surface of the rear end of the bearing housing.   
   
   
       2 . The washing machine according to  claim 1 , wherein the extension closely contacts the outer peripheral surface of the rear end of the bearing housing. 
   
   
       3 . The washing machine according to  claim 1 , wherein the extension has a bent distal end which surrounds the rear end of the bearing housing. 
   
   
       4 . The washing machine according to  claim 1 , wherein the base has a rear end facing an outer peripheral surface of the extension. 
   
   
       5 . The washing machine according to  claim 4 , wherein the rear end of the base is secured to the tub so as to not directly contact the bearing housing. 
   
   
       6 . The washing machine according to  claim 5 , wherein the rear end of the base is configured to closely contact the outer peripheral surface of the extension. 
   
   
       7 . The washing machine according to  claim 1 , wherein the bearing housing is formed by insert-injection into the tub. 
   
   
       8 . The washing machine according to  claim 1  wherein the base comprises a rear end, and wherein the extension is disposed between the rear end of the base and the rear end of the bearing housing. 
   
   
       9 . A drum type washing machine, comprising:
 a tub;   a drum disposed inside the tub;   a shaft coupled to the drum;   a bearing which supports the shaft;   a bearing housing supporting the bearing; and   a base secured to the tub,   wherein the bearing housing has a rear end protruding through a rear wall of the tub, and a rear end portion of the tub is shaped to at least partially confront an end face of the rear end of the bearing housing.   
   
   
       10 . The washing machine according to  claim 9 , wherein the extension contiguously confronts the end face of the rear end of the bearing housing. 
   
   
       11 . The washing machine according to  claim 9 , wherein the extension has a bent distal end which surrounds the end face of the bearing housing. 
   
   
       12 . The washing machine according to  claim 9 , wherein the base has a rear end which confronts an outer peripheral surface of the extension. 
   
   
       13 . The washing machine according to  claim 12 , wherein the rear end of the base is secured to the tub so as to not directly contact the bearing housing. 
   
   
       14 . The washing machine according to  claim 13 , wherein the rear end of the base is configured to contiguously confront the outer peripheral surface of the extension. 
   
   
       15 . The washing machine according to  claim 9 , wherein the bearing housing is formed by insert-injection into the tub. 
   
   
       16 . The washing machine according to  claim 9 , wherein the base comprises a rear end, and wherein the extension is disposed between the rear end of the base and the rear end of the bearing housing.