Laundry machine

Abstract

The patent application relates to a laundry machine comprising a tub, a drum, a drive assembly, a housing and a suspension assembly to reduce vibration of the drum wherein distance between front and rear bearings ( 491, 492 ), a diameter, a length or a volume (I) of the drum are greater than the same of the related art laundry machine.

1 . A laundry machine comprising:
 a tub to hold water therein;   a drum rotatably placed in the tub;   a drive assembly including a shaft connected to the drum, a bearing housing to rotatably support the shaft, and a motor to rotate the shaft; and   a suspension assembly to reduce vibration of the drum;   wherein a diameter of the drum is equal to or greater than 9 times of a length of a portion of the shaft inserted in the bearing housing.   
     
     
         2 . The laundry machine as claimed in  claim 1 , wherein the diameter of the drum is equal to or smaller than 11.5 times of the length of the portion of the shaft. 
     
     
         3 . A laundry machine comprising:
 a tub to hold water therein;   a drum rotatably placed in the tub;   a drive assembly including a shaft connected to the drum, a bearing housing to rotatably support the shaft, and a motor to rotate the shaft; and   a suspension assembly to reduce vibration of the drum;   wherein a length of the drum is equal to or greater than 6.5 times of a length of a portion of the shaft inserted in the bearing housing.   
     
     
         4 . The laundry machine as claimed in  claim 3 , wherein the length of the drum is defined as a length between front and rear walls of the drum or a length of a drum center of the drum. 
     
     
         5 . The laundry machine as claimed in  claim 4 , wherein the length of the drum is equal to or smaller than 8.6 times of the length of the portion of the shaft. 
     
     
         6 . A laundry machine comprising:
 a tub to hold water therein;   a drum rotatably placed in the tub;   a drive assembly including a shaft connected to the drum, a bearing housing to rotatably support the shaft, and a motor to rotate the shaft; and   a suspension assembly to reduce vibration of the drum;   wherein a volume[l] of the drum is equal to or greater than 1.3 times of a length[mm] of a portion of the shaft inserted in the bearing housing.   
     
     
         7 . The laundry machine as claimed in  claim 6 , wherein the volume[l] of the drum is equal to or smaller than 1.7 times of the length[mm] of the portion of the shaft. 
     
     
         8 . The laundry machine as claimed in  claim 1 , wherein the suspension assembly is attached to the bearing housing. 
     
     
         9 . The laundry machine as claimed in  claim 1 , further comprising:
 a flexible material to prevent the water inside the tub from leaking toward the drive assembly and allow the drive assembly to move relatively to the tub.   
     
     
         10 . The laundry machine as claimed in  claim 1 , wherein the tub is supported more rigidly than the drum is. 
     
     
         11 . A laundry machine comprising:
 a tub to hold water therein;   a drum rotatably placed in the tub;   a drive assembly including a shaft connected to the drum, a bearing housing having two bearings to rotatably support the shaft, and a motor to rotate the shaft; and   a suspension assembly to reduce vibration of the drum;   wherein a volume[l] of the drum is equal to or greater than 1.3 times of a distance[mm] between the two bearings, a length of the drum is equal to or greater than 6.5 times of the distance, and a diameter of the drum is equal to or greater than 9 times of the distance.