IP Library › Granted Patent US 11,479,899
Granted Patent B2
US 11,479,899 · App. 17/251,277 · Granted Oct 25, 2022

Washing machine

Inventors: Zoo Hyeong Kim (Suwon-si, KR); Jae Young Kim (Suwon-si, KR); Min Jea Choi (Suwon-si, KR); Ji Woong Kim (Suwon-si, KR)
Assignee: SAMSUNG ELECTRONICS CO., LTD.
D06F37/42D06F17/10D06F37/22D06F37/40D06F39/12D06F39/14
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Quick Facts
Patent No.
US 11,479,899
App. No.
17/251,277
Granted
Oct 25, 2022
Kind
B2
Abstract

The present disclosure relates to a washing machine to which a pulsator structure capable of preventing damage to a pulsator is applied. The washing machine includes a cabinet in which an opening for putting laundry is formed on a front side, a tub provided inside the cabinet, a drum rotatably provided inside the tub, a pulsator rotatably installed on the drum, and a cap coupled to the pulsator to cover at least a portion of a front surface thereof, wherein the cap includes a hole formed to discharge air.

Claims (27)

1. A washing machine comprising:

a cabinet in which an opening for putting laundry is formed on a front side;

a tub provided inside the cabinet;

a drum rotatably provided inside the tub;

a pulsator rotatably installed on the drum; and

a cap coupled to the pulsator to cover at least a portion of a front surface of the pulsator,

wherein the cap includes:

a first cap formed of an injection-molded material; and

a second cap formed of a metal material, and coupled to the first cap, the second cap surrounding the first cap while in contact with an outer side of the first cap,

a front surface of the first cap is surrounded by a rear surface of the second cap while making a full-contact with the rear surface of the second cap, and

each of the first cap and the second cap includes a plurality of holes.

2. The washing machine according to claim 1 , wherein the first cap and the second cap comprises the plurality of holes formed to discharge air, respectively.

3. The washing machine according to claim 1 , wherein the first cap and the second cap are formed of different materials.

4. The washing machine according to claim 1 , wherein the first cap includes a plurality of first holes, the second cap includes a plurality of second holes, and each of the plurality of first holes has a size larger than each of the plurality of second holes.

5. The washing machine according to claim 1 , wherein some of the plurality of holes formed in the first cap communicate with the plurality of holes formed in the second cap.

6. The washing machine according to claim 1 , wherein air flows through the plurality of holes by the rotation of the pulsator or the drum.

7. The washing machine according to claim 1 , wherein the second cap comprises a cap blade protruding forward.

8. The washing machine according to claim 1 , further comprising

a plurality of motors respectively connected to the pulsator and the drum, and configured to independently rotate the pulsator and the drum.

9. The washing machine according to claim 8 , wherein the plurality of motors respectively comprises a first shaft configured to rotate the pulsator and a second shaft configured to rotate the drum.

10. The washing machine according to claim 9 , wherein:

the pulsator comprises a pulsator body on which a through hole to which the first shaft is connected is formed, and a pulsator cover configured to cover a front surface of the pulsator body and comprising a cap installation portion corresponding to the through hole; and

the first cap and the second cap are installed in the cap installation portion.

11. The washing machine according to claim 10 , wherein:

the pulsator body and the pulsator cover are formed of different materials; and

the pulsator cover comprises a metal material.

12. The washing machine according to claim 11 , wherein the pulsator body comprises a plurality of air holes.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 15, 2020
From: KIM, ZOO HYEONG; KIM, JAE YOUNG; CHOI, MIN JEA; KIM, JI WOONG
To: SAMSUNG ELECTRONICS CO., LTD.
Reel/Frame 054647/0085 →
Priority Claims (1)
KR 10-2018-0070038 · Jun 19, 2018 · national
Continuity (1)
Related Publication 20210262142A1 · Aug 26, 2021