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US 7,441,420 B2Granted
Device for fastening tub to move drum type washing machine
AssigneeLG Electronics Inc.
InventorsJea-Kyum Kim, Ho-Cheol Kwon
Life of this patent
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Abstract
A device for fastening a tub to move a drum type washing machine is disclosed, in which a main body of a fastening bolt having no thread is located in an inlet of a fastening boss formed in a tub so that the intensity of the fastening bolt is improved. Thus, the fastening bolt can bear stress generated by vibration of the tub and external impact when the drum type washing machine moves.
Claims10
A washing machine comprising:
- a drum rotatably fitted to a tub for storing washing water;
- a main body enclosing an outer shell of the tub;
- a motor operatively connected to the drum;
- a fastening bolt including a head, a male threaded portion and a non-threaded portion, an outer diameter of the non-threaded portion being greater than a smallest diameter of the male threaded portion;
- a bolt holder including first and second protrusions on an outer surface;
- an elastic bushing surrounding the outer surface of the bolt holder, the bushing being fixed between a washer and the main body, and fixed between the washer and the first protrusion;
- and fixed between the first protrusion and second protrusion;
- a fastening boss extending unitarily from a rear surface of the tub and having a female threaded portion that receives the male threaded portion of the bolt;
- and having a female non-threaded portion that receives the non-threaded portion of the fastening bolt;
- wherein the fastening bolt passes through the washer, the bushing, the bolt holder and the main body to fix the tub relative to the main body.
7 more elements
Dependencies are inferred from the claim text.