US2005217323A1PendingUtilityA1

Drum type washing machine

46
Individually held — no corporate assignee on recordPriority: Feb 17, 2003Filed: Feb 17, 2004Published: Oct 6, 2005
Est. expiryFeb 17, 2023(expired)· nominal 20-yr term from priority
Inventors:Deug Hee LeeTae Hyung Lee
D06F 37/22D06F 37/20D06F 39/125Y02B40/00F16F 15/022D06F 37/268
46
PatentIndex Score
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Claims

Abstract

The present invention relates to a drum type washing machine for smooth attenuation of different directions of vibration transmissive to a tub during rotation of the drum. The present invention provides a drum type washing machine including a cabinet having an opening in a front surface, a tub inside of the cabinet having a drum rotatably mounted on an inside thereof, first, and second dampers connected between one side of a circumferential surface of the tub and the cabinet respectively, a third damper connected between the other side of the circumferential surface of the tub and the cabinet, and at least one spring connected between the circumferential surface of the tub and the cabinet. The at least one spring includes a first spring connected to an upper surface of the tub on a side the same with the first, and second dampers for attenuating up/down, and left/right vibrations of the tub, and second, and third springs connected to the upper surface of the tub on a side the same with the third damper for attenuating up/down, left/right, and front/rear vibrations of the tub.

Claims

exact text as granted — not AI-modified
1 . A drum type washing machine comprising: 
 a cabinet having an opening in a front surface;    a tub inside of the cabinet having a drum rotatably mounted on an inside thereof;    first, and second dampers connected between one side of a circumferential surface of the tub and the cabinet, respectively;    a third damper connected between the other side of the circumferential surface of the tub and the cabinet; and    at least one spring connected between the circumferential surface of the tub and the cabinet.    
   
   
       2 . The drum type washing machine as claimed in  claim 1 , wherein at least one of the first to third dampers is connected to a lower surface of the tub.  
   
   
       3 . The drum type washing machine as claimed in  claim 1 , wherein the first, and second dampers are arranged adjacent to a front part, and a rear part in a longitudinal direction of the tub, respectively.  
   
   
       4 . The drum type washing machine as claimed in  claim 1  or  3 , wherein the third damper is arranged at middle in a longitudinal direction of the tub.  
   
   
       5 . The drum type washing machine as claimed in  claim 1  or  3 , wherein the third damper is arranged at a position opposite to middle of the first and second dampers.  
   
   
       6 . The drum type washing machine as claimed in  claim 1 , wherein the first, and second dampers are positioned on a side the drum rotates from an upper side to a lower side when the tub is seen from the front.  
   
   
       7 . The drum type washing machine as claimed in  claim 1  or  6 , wherein the third damper is positioned on a side the drum rotates from a lower side to an upper side when the tub is seen from the front.  
   
   
       8 . The drum type washing machine as claimed in  claim 1  or  6 , wherein the first or second damper has a half of a damping capability of the third damper.  
   
   
       9 . The drum type washing machine as claimed in  claim 1 , wherein the at least one spring includes; 
 a first spring connected to an upper surface of the tub on a side the same with the first, and second dampers, and    second, and third springs connected to the upper surface of the tub on a side the same with the third damper.    
   
   
       10 . The drum type washing machine as claimed in  claim 9 , wherein the first spring is positioned at middle in a longitudinal direction of the tub.  
   
   
       11 . The drum type washing machine as claimed in  claim 9  or  10 , wherein the second, and third springs are arranged adjacent to a front part, and a rear part in the longitudinal direction of the tub, respectively.  
   
   
       12 . The drum type washing machine as claimed in  claim 9  or  10 , wherein the first spring is arranged at a point opposite to middle of the second, and third springs.  
   
   
       13 . The drum type washing machine as claimed in  claim 9 , wherein the first spring is positioned on a side the drum rotates from an upper side to a lower side when the tub is seen from the front.  
   
   
       14 . The drum type washing machine as claimed in  claim 9  or  13 , wherein the second, and third springs are positioned on a side the drum rotates from a lower side to an upper side when the tub is seen from the front.  
   
   
       15 . The drum type washing machine as claimed in  claim 9  or  13 , wherein the second, or third spring has a half of damping capability of the first spring.  
   
   
       16 . A drum type washing machine comprising: 
 a cabinet having an opening in a front surface;    a tub inside of the cabinet having a drum rotatably mounted on an inside thereof;    first, and second dampers connected between one side of a circumferential surface of the tub and the cabinet respectively, for attenuating up/down, left/right, and front/rear vibrations of the tub;    a third damper connected between the other side of the circumferential surface of the tub and the cabinet, for attenuating up/down, and left/right vibrations of the tub;    a first spring connected between a side of a circumferential surface of the tub the same with the first, and second dampers and the cabinet, for attenuating up/down, and left/right vibrations of the tub; and    second, and third springs connected between a side of a circumferential surface of the tub the same with the third damper and the cabinet respectively, for attenuating up/down, left/right, and front/rear vibrations of the tub.    
   
   
       17 . The drum type washing machine as claimed in  claim 16 , wherein at least one of the first to third dampers is connected to a lower surface of the tub, and 
 at least one of the first to third springs is connected to an upper surface of the tub.    
   
   
       18 . The drum type washing machine as claimed in  claim 16 , wherein the first and second dampers are arranged adjacent to a front part and a rear part in a longitudinal direction of the tub respectively, and 
 the third damper is arranged at middle in a longitudinal direction of the tub.    
   
   
       19 . The drum type washing machine as claimed in  claim 16 , wherein the first, and second dampers are positioned on a side the drum rotates from an upper side to a lower side when the tub is seen from the front, and 
 the third damper is positioned on a side the drum rotates from a lower side to an upper side when the tub is seen from the front.    
   
   
       20 . The drum type washing machine as claimed in  claim 16  or  19 , wherein the first or second damper has a half of damping capability of the third damper.  
   
   
       21 . The drum type washing machine as claimed in  claim 16 , wherein the first spring is arranged at middle in a longitudinal direction of the tub, and 
 the second, and third springs are arranged adjacent to a front part and a rear part in a longitudinal direction of the tub.    
   
   
       22 . The drum type washing machine as claimed in  claim 16 , wherein the first spring is positioned on a side the drum rotates from an upper side to a lower side when the tub is seen from the front, and 
 the second, third springs are positioned on a side the drum rotates from a lower side to an upper side when the tub is seen from the front.    
   
   
       23 . The drum type washing machine as claimed in  claim 16  or  22 , wherein the second, or third spring has a half of damping capability of the first spring.  
   
   
       24 . A drum type washing machine comprising: 
 a cabinet having an opening in a front surface;    a tub inside of the cabinet having a drum rotatably mounted on an inside thereof;    first, and second dampers connected between one side of a lower surface of the tub and the cabinet respectively, for attenuating up/down, left/right, and front/rear vibrations of the tub;    a third damper connected between a side of the lower surface of the tub opposite to the first and the second dampers and the cabinet, for attenuating up/down, and left/right vibrations of the tub; and    at least one spring connected between the circumferential surface of the tub and the cabinet, for attenuating up/down, left/right, and front/rear vibrations of the tub.    
   
   
       25 . The drum type washing machine as claimed in  claim 24 , wherein the at least one spring includes; 
 a first spring connected to an upper surface of the tub on a side the same with the first, and second dampers for attenuating up/down, and left/right vibrations of the tub, and    second, and third springs connected to the upper surface of the tub on a side the same with the third damper for attenuating up/down, left/right, and front/rear vibrations of the tub.

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