Clothes treating apparatus

Patent metadata

Field	Value
Publication number	US-11149377-B2
Application number	US-201616068162-A
Country	US
Kind code	B2
Filing date	Dec 21, 2016
Priority date	Jan 5, 2016
Publication date	Oct 19, 2021
Grant date	Oct 19, 2021

Abstract

A clothes treating apparatus includes a cabinet defining an entrance, a drawer configured to be drawn out from the cabinet through the entrance, a tub provided in the drawer, a circular drum bottom provided in the tub, a cylindrical drum body fixed to the drum bottom, a drum positioned on an upper surface of the drum body, a driving part including a rotating shaft that rotates the drum and penetrates the tub so as to be coupled to the drum bottom, a hub that is fixed to the center-of-rotation of the drum bottom and protrudes towards a drum inlet, and a stirring part including an arm extending from the hub towards a circumferential surface of the drum body.

First claim

The invention claimed is:

1. A laundry treatment apparatus comprising:
a cabinet that defines an opening, wherein a width of the cabinet is greater than a height of the cabinet;
a tub located in the cabinet and configured to receive water, the tub defining a tub opening that allows introduction of laundry to the tub and removal of laundry from the tub;
a drum located in the tub and configured to rotate relative to the tub, the drum comprising:
a drum bottom that has a circular shape, and
a drum body that has a cylindrical shape, that is coupled to the drum bottom, and that extends toward the tub opening, the drum body defining a drum opening at an upper surface of the drum body that communicates with the tub opening;

a driving unit configured to cause rotation of the drum relative to the tub, the driving unit comprising a rotary shaft connected to the drum bottom through the tub;
an agitator comprising:
a hub located at a position corresponding to a center of rotation of the drum, the hub protruding toward the drum opening, and
an arm that extends from the hub toward a circumferential surface of the drum body; and

a shaft-fixing unit connected to the rotary shaft, the shaft-fixing unit being located below the drum bottom and coupled to the drum bottom,
wherein the shaft-fixing unit is fixed to the drum bottom by a first fastening unit, and the agitator is fixed to the drum bottom by a second fastening unit separate from the first fastening unit,
wherein a height of the hub is greater than or equal to a half of a height of the drum, and a height of the arm is less than the half of the height of the drum, and
wherein a width of the drum is greater than the height of the drum.

2. The laundry treatment apparatus according to claim 1 , wherein the first fastening unit penetrates a portion of the arm and the drum bottom, the first fastening unit penetrating the drum bottom in a direction from an inside of the drum toward an outside of the drum and being coupled to the shaft-fixing unit, and
wherein the second fastening unit penetrates the shaft-fixing unit and the drum bottom, the second fastening unit penetrating the drum bottom in a direction from the outside of the drum toward the inside of the drum and being coupled to the agitator.

3. The laundry treatment apparatus according to claim 2 , wherein the arm comprises:
a first surface that extends from the hub and that is inclined toward the drum bottom, the first surface defining a first inclination angle with respect to the rotary shaft;
a second surface that extends from the first surface and that defines a second inclination angle with respect to the rotary shaft, the second inclination angle being greater than the first inclination angle with respect to the rotary shaft; and
a third surface that connects the second surface of the arm to the drum bottom,
wherein the height of the hub is greater than the half of the height of the drum, and
wherein a distance from the drum bottom to the second surface of the arm is less than the half of the height of the drum.

4. The laundry treatment apparatus according to claim 1 , wherein an end of the arm is spaced apart from the drum body, and
wherein a distance from the hub to the end of the arm is greater than a half of a radius of the drum body.

5. The laundry treatment apparatus according to claim 1 , wherein the arm comprises:
an arm base that is disposed at the drum bottom; and
an arm body that has a first end coupled to the hub and a second end coupled to the arm base,
wherein the first fastening unit penetrates the arm base and the drum bottom, and an end of the first fastening unit is located between the arm body and the arm base, and
wherein the second fastening unit penetrates the shaft-fixing unit and the drum bottom.

6. The laundry treatment apparatus according to claim 5 , wherein
the arm base protrudes from the drum bottom toward the drum opening,
wherein the arm body is coupled to the arm base by the second fastening unit, and
wherein an end of the arm base is spaced apart from the circumferential surface of the drum body.

7. The laundry treatment apparatus according to claim 6 , wherein the arm base and the drum bottom are each made of a first material, and
wherein the arm body is made of a second material that is different from the first material.

8. The laundry treatment apparatus according to claim 7 , wherein the arm base includes a bent portion that extends from the drum bottom toward the drum opening.

9. The laundry treatment apparatus according to claim 6 , wherein the arm comprises a first arm, a second arm, and a third arm that are arranged about the hub and that are spaced apart from each other by 120 degrees.

10. The laundry treatment apparatus according to claim 9 , wherein inner ends of the first, second, and third arms are connected to each other, the inner ends surrounding a circumferential surface of the hub.

11. The laundry treatment apparatus according to claim 1 , wherein the shaft-fixing unit comprises:
a body located outside of the drum bottom, the rotary shaft being coupled to the body; and
a fixing arm that extends from the body toward a circumferential surface of the drum bottom and that is located at a position corresponding to the arm, and
wherein the first fastening unit is coupled to the fixing arm through the drum bottom and located in a laundry storage space defined by the drum, the first fastening unit being covered by the arm without exposure to the laundry storage space.

12. The laundry treatment apparatus according to claim 11 , wherein the arm comprises:
an arm base located at the drum bottom; and
an arm body having a first end coupled to the hub and a second end coupled to the arm base,
wherein the first fastening unit is coupled to the fixing arm through the arm base, and
wherein the first fastening unit is covered by the arm body without exposure to the laundry storage space.

13. The laundry treatment apparatus according to claim 12 , wherein the second fastening unit is inserted into the drum from an outside of the drum bottom and coupled to the arm body through the fixing arm and the drum bottom.

14. The laundry treatment apparatus according to claim 13 , further comprising a third fastening unit that is inserted into the drum from the outside of the drum bottom and that is coupled to the hub through the drum bottom.

15. The laundry treatment apparatus according to claim 1 , further comprising:
a chamber defined at an inside of the hub;
an introduction hole that is defined at the hub, that allows communication between the chamber and an inside of the drum, and that allows entrance of water from the inside of the drum into the chamber;
a filtering hole defined at a bottom surface of the hub that faces the chamber; and
a drum through-hole defined at the drum bottom and located vertically below the filtering hole.

16. The laundry treatment apparatus according to claim 15 , further comprising a chamber cover that is located vertically above the chamber,
wherein the introduction hole is defined between a lower end of the chamber cover and an upper end of the chamber.

17. The laundry treatment apparatus according to claim 16 , wherein a distance from the drum bottom to a top surface of the chamber cover is greater than a half of a height of the drum from the drum bottom.

18. The laundry treatment apparatus according to claim 16 , wherein the chamber cover protrudes further toward the drum opening than the arm.

19. The laundry treatment ap

Assignees

• Lg Electronics Inc

Inventors

• Lee Byungjin
• No Yanghwan
• Han Inhee
• Lee Jonghwan
• Lee Jihong

Classifications

• D06F37/245

  Damping vibrations by displacing, supplying or ejecting a material, e.g. liquid, into or from counterbalancing pockets · CPC title

• D06F37/12

  adapted for rotation or oscillation about a vertical axis · CPC title

• D06F39/125 Primary

  Supporting arrangements for the casing, e.g. rollers or legs · CPC title

• D06F39/10

  Filtering arrangements · CPC title

• D06F39/08

  Liquid supply or discharge arrangements (supply of soap or other washing agents D06F39/02) · CPC title