Laundry machine

Abstract

A laundry machine according to an embodiment of the present invention, comprises: a cabinet; a tub rotatably disposed in the cabinet; and a detergent supply device provided in the cabinet that mixes washing water and powdered detergent and discharges the mixture into the tub, wherein the detergent supply device comprises: a housing disposed at the cabinet; a drawer that is withdrawably mounted in the housing and has a receiving portion for receiving the powdered detergent; a mixing member disposed in the receiving portion that mixes the powdered detergent by rotation; and a driving part that rotates the mixing member in conjunction with the withdrawal and insertion of the drawer.

What is claimed is: 
     
         1 . A laundry machine, comprising:
 a cabinet;   a tub rotatably disposed in the cabinet; and   a detergent supply device provided in the cabinet that mixes washing water and powdered detergent and discharges the mixture into the tub,   wherein the detergent supply device comprises:   a housing disposed at the cabinet;   a drawer that is withdrawably mounted in the housing and has a receiving portion for receiving the powdered detergent;   a mixing member disposed in the receiving portion that mixes the powdered detergent by rotation; and   a driving part that rotates the mixing member in conjunction with the withdrawal and insertion of the drawer.   
     
     
         2 . The laundry machine according to  claim 1 , wherein the driving part is operated during withdrawal and insertion of the drawer to rotate the mixing member. 
     
     
         3 . The laundry machine according to  claim 1 , wherein the housing is formed in a box shape with an open front,
 the drawer is drawn in and out through the open front of the housing, and   the driving part is provided on the housing and the mixing member.   
     
     
         4 . The laundry machine according to  claim 1 , wherein the driving part includes:
 a rack formed on the housing and extending in the direction of drawing in and out of the drawer; and   a pinion provided on the mixing member and gear-coupled with the rack, the pinion rotating the mixing member while moving along the rack when the drawer is withdrawn and inserted.   
     
     
         5 . The laundry machine according to  claim 4 , wherein the length of the rack is shorter than withdrawal and insertion stroke of the drawer. 
     
     
         6 . The laundry machine according to  claim 4 , wherein the rack extends from an opening of the housing, and
 the pinion is separated from the rack when the drawer is fully withdrawn and inserted.   
     
     
         7 . The laundry machine according to  claim 4 , wherein the housing has a pinion receiving portion formed that is recessed further than the rear end in the insertion direction of the drawer, and
 the pinion remains separated from the rack when the drawer is fully inserted.   
     
     
         8 . The laundry machine according to  claim 7 , wherein the front end of the lower surface of the housing has a housing recessed portion that is recessed rearward, and
 the rack and pinion receiving portion are formed along the housing recessed portion.   
     
     
         9 . The laundry machine according to  claim 4 , wherein when the drawer is fully inserted, the pinion is separated from the rack and is capable of free rotation. 
     
     
         10 . The laundry machine according to  claim 9 , wherein the detergent supply device is disposed above the mixing member, and includes a nozzle that, when the drawer is fully inserted, sprays washing water toward the mixing member and rotates the mixing member. 
     
     
         11 . The laundry machine according to  claim 10 , wherein the detergent supply device further includes a flow path member that is coupled to the upper surface of the housing to form a flow path through which the washing water flows, and
 wherein the nozzle is provided on the flow path member and opens to spray water in a direction intersecting the blades.   
     
     
         12 . The laundry machine according to  claim 4 , wherein the rack is formed on the lower surface of the housing below the drawer, and
 the pinion is connected to the rotating shaft of the mixing member that passes through the lower surface of the housing and the lower surface of the drawer below the housing.   
     
     
         13 . The laundry machine according to  claim 12 , wherein the pinion is connected to the rotating shaft below the drawer, and is withdrawn and inserted together with the drawer when the drawer is withdrawn and inserted. 
     
     
         14 . The laundry machine according to  claim 4 , wherein the mixing member comprises:
 a rotating shaft; and   a plurality of blades extending radially from the rotating shaft, and   wherein the rotating shaft extends downward to penetrate the drawer, and the pinion is connected to an extended end of the rotating shaft.   
     
     
         15 . The laundry machine according to  claim 14 , wherein a receiving portion opening is formed on the lower surface of receiving portion through which the rotating shaft passes, and
 a mixing member guide protrudes downward along the perimeter of the receiving portion opening and through which the rotating shaft passes.   
     
     
         16 . The laundry machine according to  claim 14 , wherein the rotating shaft comprises:
 an upper part located inside the receiving portion and in which the blade is formed; and   a lower part extending downward through the receiving portion from the lower end of the upper part, and   wherein the pinion is disposed on the lower part.   
     
     
         17 . The laundry machine according to  claim 16 , wherein the lower end of the upper part is formed to be larger than the diameter of the lower part,
 and the lower end of the upper part is seated on the lower surface of the receiving portion, and the lower part protrudes downward through the receiving portion.   
     
     
         18 . The laundry machine according to  claim 16 , wherein the pinion comprises:
 a pinion portion having gears formed along circumference of the pinion part; and   a boss portion extending upward from the center of the pinion portion and into which the lower end of the lower part is inserted, and   wherein the lower part and the boss portion are detachably coupled to each other below the drawer.   
     
     
         19 . The laundry machine according to  claim 18 , wherein a coupling protrusion is formed on the inner surface of the boss portion, and
 a coupling groove is formed on the outer surface of the lower part to accommodate the coupling protrusion, and   wherein the coupling groove comprises:   an insertion portion extending upward from the lower end of the lower part; and   a restraining portion extending from the upper end of the insertion portion in a direction opposite to the rotational direction of the mixing member.   
     
     
         20 . The laundry machine according to  claim 1 , wherein an upper frame is disposed on an upper surface of the cabinet and has an inlet and is configured to mount the drawer, and
 the drawer forms one side of the periphery of the inlet when retracted, and   when the drawer is withdrawn, the mixing member rotates and is exposed to the inside of the inlet.