Dish washer

Abstract

The present disclosure relates to a dish washer. The dish washer includes: a tub forming a washing space; and a sprayer positioned within the tub, for spraying water to the washing space. The sprayer includes: a water guide with a discharge hole formed in an lower surface to release water; a spinner positioned under the discharge hole and rotatably placed; and a retainer that supports the rotation of the spinner. The retainer includes a rotation shaft that penetrates the spinner and makes contact with the water guide.

What is claimed is: 
     
         1 . A dish washer comprising:
 a tub having a washing space therein; and   a sprayer disposed in the tub and configured to spray water to the washing space,   the sprayer including:   a water guide having a discharge hole formed in an lower surface through which water is discharged;   a spinner rotatably disposed below the discharge hole; and   a retainer supporting rotation of the spinner,   wherein the retainer includes a rotation shaft that passes through the spinner and contacts the water guide.   
     
     
         2 . The dish washer of  claim 1 , wherein an upper groove is formed on the water guide, which is recessed upwardly to accommodate an end portion of the rotation shaft. 
     
     
         3 . The dish washer of  claim 1 , wherein the rotation shaft includes:
 a first rotation shaft disposed to pass through the spinner; and   a second rotation shaft disposed to pass through the discharge hole and to contact the water guide,   wherein the diameter of the first rotation shaft is greater than the diameter of the second rotation shaft.   
     
     
         4 . The dish washer of  claim 3 , wherein a sloping surface is formed between the first rotation shaft and the second rotation shaft, and the sloping surface becomes thicker from top to bottom. 
     
     
         5 . The dish washer of  claim 1 , wherein the sprayer further includes a bracket connected to the water guide, and the retainer is connected to the bracket. 
     
     
         6 . The dish washer of  claim 5 , wherein the bracket is disposed to be fixed to the water guide, and the retainer is hooked to the bracket. 
     
     
         7 . The dish washer of  claim 5 , wherein the bracket includes a front hook protruding forward so as to be attached to the retainer and a pair of side hooks protruding laterally so as to be attached to the retainer. 
     
     
         8 . The dish washer of  claim 5 , wherein the bracket includes a first side projection and a second side projection which make contact with the retainer so as to restrict upward movement of the retainer, and the first side projection and the second side projection are longitudinally spaced apart from each other. 
     
     
         9 . The dish washer of  claim 1 , wherein the retainer includes:
 a first peripheral rib positioned outward of the spinner; and   a second peripheral rib positioned above the first peripheral rib,   wherein the second peripheral rib is disposed outward of the first peripheral rib.   
     
     
         10 . The dish washer of  claim 9 , wherein the second peripheral rib is positioned at the same height as or higher than the lower surface of the water guide. 
     
     
         11 . The dish washer of  claim 9 , wherein the sprayer further includes a bracket connected to the water guide, to which the retainer is connected,
 wherein the second peripheral rib is positioned at the same height as or higher than a lower surface of the bracket.   
     
     
         12 . The dish washer of  claim 11 , wherein the retainer further includes a rear rib that connects rear ends of the second peripheral rib, and the rear rib is positioned in such a way as to make contact with a lower surface of the water guide. 
     
     
         13 . The dish washer of  claim 1 , wherein an inner column is positioned inside the water guide so as to block part of a flow path formed inside the water guide,
 wherein the inner column is disposed behind the discharge hole.   
     
     
         14 . The dish washer of  claim 13 , wherein the discharge hole is disposed between a front end portion inside the water guide and the inner column, and the front end portion is disposed forwardly spaced apart from the discharge hole. 
     
     
         15 . The dish washer of  claim 14 , wherein both left and right edges of the front end portion are curved. 
     
     
         16 . The dish washer of  claim 14 , wherein the distance between the inner column and the discharge hole is shorter than the distance between the discharge hole and the front end portion. 
     
     
         17 . A dish washer comprising:
 a tub having a washing space therein; and   a sprayer disposed in the tub, and configured to spray water to the washing space,   the sprayer including:   a water guide having a discharge hole formed in an lower surface through which water is discharged;   a spinner rotatably disposed below the discharge; and   a retainer forming a space in which the spinner rotates,   wherein the water guide includes a rotation shaft that passes through the spinner and contacts the retainer.   
     
     
         18 . The dish washer of  claim 17 , wherein the retainer includes:
 a first peripheral rib disposed outward of the spinner;   a second peripheral rib disposed above the first peripheral rib; and   a central plate positioned at the center of the first peripheral rib, that contacts the rotation shaft,   wherein a groove is formed on the central plate, recessed downwardly to accommodate the bottom of the rotation shaft.   
     
     
         19 . A dish washer comprising:
 a tub having a washing space therein; and   a sprayer disposed in the tub and configured to spray water to the washing space,   the sprayer including:   a water guide with a discharge hole formed in an lower surface to release water;   a spinner rotatably disposed below the discharge hole; and   a retainer supporting rotation of the spinner,   wherein the retainer includes a first rotation shaft which passes through the spinner, and the water guide includes a second rotation shaft which extends down the discharge hole and is connected to the first rotation shaft.   
     
     
         20 . The dish washer of  claim 19 , wherein the first rotation shaft includes a coupling projection protruding upward from an upper end, and the second rotation shaft has a coupling portion groove which is recessed upwardly to accommodate the coupling projection.