Manufacturing method of bearing housing of washing machine

Abstract

A manufacturing method of a bearing housing of a washing machine using a first mold and a second mold to form an external appearance of the bearing housing and a central core to form a shaft support part of the bearing housing includes inserting a bearing bush onto the outer circumferential surface of the central core, and fixing the bearing bush inserted onto the outer circumferential surface of the central core by at least one bush fixing rib formed on one of the first mold and the second mold.

What is claimed is: 
     
         1 . A manufacturing method of a bearing housing of a washing machine using a first mold and a second mold to form an external appearance of the bearing housing and a central core to form a shaft support part of the bearing housing, comprising:
 inserting a bearing bush onto the outer circumferential surface of the central core; and   fixing the bearing bush inserted onto the outer circumferential surface of the central core by at least one bush fixing rib formed on one of the first mold and the second mold.   
     
     
         2 . The manufacturing method according to  claim 1 , wherein the at least one bush fixing rib is formed on one mold located at the upper part, among the first mold and the second mold. 
     
     
         3 . The manufacturing method according to  claim 2 , wherein the at least one bush fixing rib is protruded such that the at least one bush fixing rib is tilted from the upper portion thereof to the lower portion thereof. 
     
     
         4 . The manufacturing method according to  claim 3 , wherein the central core includes a protrusion to support a lower end of the bearing bush.