# US 9,517,585 B2 · Washing machine and method of manufacturing the same

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- Number: US 9,517,585 B2
- Document ID: US9517585B2
- Status: Granted
- Kind: B2
- Application number: 14/542,322
- Filed: 2014-11-14
- Published: 2016-01-21
- Granted: 2016-12-13
- Earliest claimed: 2014-07-15
- Assignees: Dongbu Daewoo Electronics Corporation
- Applicants: Dongbu Daewoo Electronics Corporation
- Inventors: Heui Seok Kwak
- Web page: https://patentgrep.com/patent/US9517585B2

## CPC

- B29C 49/20: of articles having inserts or reinforcements {; Handling of inserts or reinforcements}
- D06F 37/262: {made of plastic material, e.g. by injection moulding}
- D06F 37/263: {assembled from at least two elements connected to each other; Connecting or sealing means therefor}
- D06F 37/267: {Tubs specially adapted for mounting thereto components or devices not provided for in preceding subgroups (D06F37/206 takes precedence)}
- B29C 2049/2047: {Tubular inserts, e.g. tubes}
- B29L 2031/762: {Household appliances}
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)
- D06F: LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- B29L: INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES

## Abstract

A washing machine includes: a cabinet and a tub that is installed in the cabinet and holds washing water. The tub includes a cylindrical housing, and the housing is formed by blow molding.

## Claims

### Claim 1

A washing machine comprising:
a cabinet; and
a tub that is installed in the cabinet and configured to hold washing water,
wherein the tub includes a cylindrical housing, and the housing is formed by blow molding; and
wherein the tub further includes a hose member that is connected to an overflow path formed in an inner wall of the housing, and wherein the blow molding of the housing is performed after the hose member is inserted into a mold used for the blow molding.

### Claim 2 (depends on 1)

The washing machine of claim 1, wherein the tub further includes a base that closes a lower end portion of the housing, and wherein the blow molding of the housing is performed after the base is inserted into the mold used for the blow molding.

### Claim 3 (depends on 1)

The washing machine of claim 1, wherein protruding portions and recessed portions complementary to the protruding portions are formed at predetermined intervals along a circumference of the base and the hose member.

### Claim 4 (depends on 1)

The washing machine of claim 1, wherein an insertion portion and an accommodating portion into which the insertion portion is inserted are formed along a circumference of the base and the hose member.