Drum type washing machine

Abstract

Disclosed is a drum type washing machine, and more particularly, a tub of a drum type washing machine enabling to effectively drain water and foam in the tub. The present invention includes a tub body having a drum installed rotatably inside, a sump at a bottom of the tub body to store water or foam, a drain outlet at a bottom of the sump wherein the water or foam is discharged via the drain outlet, and a rib at one side of the sump to prevent the water or foam from deviating from the sump.

What is claimed is:  
     
         1 . A tub of a drum type washing machine, comprising: 
 a tub body having a drum installed rotatably inside;    a sump at a bottom of the tub body to store water or foam;    a drain outlet at a bottom of the sump wherein the water or foam is discharged via the drain outlet; and    a rib at one side of the sump to prevent the water or foam from deviating from the sump.    
     
     
         2 . The tub as claimed in  claim 1 , wherein the sump is expanded to increase a capacity of storing the water and foam therein.  
     
     
         3 . The tub as claimed in  claim 2 , wherein the drain outlet is formed at an expanded portion of the sump.  
     
     
         4 . The tub as claimed in  claim 2 , wherein the rib is formed at an edge top of the expanded sump to prevent the water or foam from deviating from the sump by a rotation of the drum.  
     
     
         5 . The tub as claimed in  claim 1 , wherein the sump is expanded in a rotational direction of the drum on dewatering to increase a capacity of storing the water and foam therein.  
     
     
         6 . The tub as claimed in  claim 5 , wherein the drain outlet is formed at an expanded portion of the sump.  
     
     
         7 . The tub as claimed in  claim 5 , wherein the rib is formed at an edge top of the expanded sump to prevent the water or foam from deviating from the sump by a rotation of the drum.  
     
     
         8 . A drum type washing machine, comprising: 
 a cabinet forming an exterior;    a drum in the cabinet to hold a laundry and a detergent therein;    a tub body having the drum installed rotatably inside;    a sump at a bottom of the tub body to store water or foam;    a drain outlet at a bottom of the sump wherein the water or foam is discharged via the drain outlet; and    a rib at one side of the sump to prevent the water or foam from deviating from the sump.    
     
     
         9 . The drum type washing machine as claimed in  claim 8 , wherein the sump is expanded to increase a capacity of storing the water and foam therein.  
     
     
         10 . The drum type washing machine as claimed in  claim 9 , wherein the drain outlet is formed at an expanded portion of the sump.  
     
     
         11 . The drum type washing machine as claimed in  claim 9 , wherein the rib is formed at an edge top of the expanded sump to prevent the water or foam from deviating from the sump by a rotation of the drum.  
     
     
         12 . The drum type washing machine as claimed in  claim 8 , wherein the sump is expanded in a rotational direction of the drum on dewatering to increase a capacity of storing the water and foam therein.  
     
     
         13 . The drum type washing machine as claimed in  claim 12 , wherein the drain outlet is formed at an expanded portion of the sump.  
     
     
         14 . The drum type washing machine as claimed in  claim 12 , wherein the rib is formed at an edge top of the expanded sump to prevent the water or foam from deviating from the sump by a rotation of the drum.