公开(公告)号：US11649577B2

公开(公告)日：2023-05-16

申请号：US16906089

申请日：2020-06-19

Applicant: LG ELECTRONICS INC.

Inventor： Sunghoon Kim ,  Hyun Seung Lee

IPC: D06F37/04 ,  D06F37/22 ,  D06F37/30 ,  D06F23/02 ,  B21D22/02

CPC classification number: D06F37/04 ,  B21D22/02 ,  D06F23/02 ,  D06F37/22 ,  D06F37/30

Abstract: Provided are a washing machine that can be manufactured in a large capacity without deterioration in function, and a manufacturing method thereof. A washing machine includes a drum, a drum back, and a spider. The drum back includes a coupling portion formed to protrude in a front direction of the drum at a portion of the drum back to which the spider is coupled so as to correspond to a shape of the spider, a first forming portion formed to be recessed in a back direction of the drum at a portion of the drum back to which the spider is not coupled, and a reinforcement portion formed to additionally protrude in the front direction of the drum at a portion of the coupling portion that is adjacent to the first forming portions.