Apparatus for treating laundry

Patent metadata

Field	Value
Publication number	US-11549208-B2
Application number	US-202117466986-A
Country	US
Kind code	B2
Filing date	Sep 3, 2021
Priority date	Sep 4, 2020
Publication date	Jan 10, 2023
Grant date	Jan 10, 2023

Abstract

An apparatus for treating laundry includes a cabinet and a drum. The cabinet includes a base panel, a support panel fixed to the base panel, and a fixed panel fixed to the base panel. The drum includes a cylindrical drum body and a drum entrance defined at a front cover of the cylindrical drum body. The apparatus further includes a support panel perforated hole defined at the support panel and in communication with the drum entrance, a drum connecting body provided at the support panel and connecting the support panel perforated hole to the drum entrance, and a drive part. The drive part includes a stator configured to generate a rotating field, a rotor configured to be rotated by the rotating field, and a power transmission part that is fixed to the fixed panel and that is configured to transmit a rotational motion of the rotor to the drum.

First claim

What is claimed is:

1. An apparatus for treating laundry, comprising:
a cabinet comprising:
a base panel,
a support panel fixed to the base panel, and
a fixed panel that is fixed to the base panel and that is located to face the support panel;

a drum located in the cabinet, the drum comprising:
a cylindrical drum body that is open at a front side and a rear side;
a front cover fixed to the front side of the cylindrical drum body;
a rear cover fixed to the rear side of the cylindrical drum body; and
a drum entrance defined at the front cover;

a support panel perforated hole that is defined at the support panel and that is in communication with the drum entrance;
a drum connecting body that is provided at the support panel and that connects the support panel perforated hole to the drum entrance;
a drive part comprising:
a stator configured to generate a rotating field,
a rotor configured to be rotated by the rotating field, and
a power transmission part that is fixed to the fixed panel and that is configured to transmit a rotational motion of the rotor to the drum;

a first front support part provided to at least one of the base panel or the support panel and configured to set (i) a movable range of the drum entrance along a width direction of the support panel and (ii) a movable range of the drum entrance toward the base panel; and
a second front support part that is provided to the support panel and that is configured to set a movable range of the drum entrance in a direction of away from the base panel.

2. The apparatus of claim 1 , wherein the first front support part supports (i) an area in a circumferential surface of the front cover under a horizontal line passing through a rotation center of the drum or (ii) an area in a circumferential surface of the cylindrical drum body under the horizontal line, and
wherein the second front support part supports (i) an area in the circumferential surface of the front cover over the horizontal line or (ii) an area in the circumferential surface of the cylindrical drum body over the horizontal line.

3. The apparatus of claim 2 , wherein the second front support part comprises:
a front support frame fixed to the fixed panel, and
a support damper that is fixed to the front support frame and that contacts the circumferential surface of the front cover.

4. The apparatus of claim 2 , wherein the second front support part comprises:
a front support frame fixed to the fixed panel, and
a support damper that is fixed to the front support frame and that is spaced apart from the circumferential surface of the front cover.

5. The apparatus of claim 4 , wherein the support damper comprises:
a first damper fixed to the front support frame, and
a second damper that is fixed to the first damper and that is made of material having an elastic coefficient different from that of the first damper.

6. The apparatus of claim 5 , wherein the second damper is made of felt, and
wherein the first damper is made of rubber.

7. The apparatus of claim 5 , further comprising a connecting damper that is fixed to a first end of the drum connecting body and that has a ring shape to connect the first end of the drum connecting body to an edge of the drum entrance.

8. The apparatus of claim 7 , wherein the connecting damper is made of felt.

9. The apparatus of claim 2 , wherein the second front support part comprises:
a front support frame fixed to the support panel, and
a front roller that is rotatably fixed to the front support frame and that has a circumferential surface contacting the circumferential surface of the front cover.

10. The apparatus of claim 2 , wherein the second front support part comprises:
a front support frame fixed to the support panel, and
a front roller that is rotatably fixed to the front support frame and that has a circumferential surface spaced apart from the circumferential surface of the front cover.

11. The apparatus of claim 2 , wherein the first front support part comprises first and second rollers that are rotatably fixed to the support panel and that are provided at points symmetric with respect to a vertical line passing through the rotation center of the drum, respectively.

12. An apparatus for treating laundry, comprising:
a cabinet comprising:
a base panel,
a support panel fixed to the base panel, and
a fixed panel that is fixed to the base panel and that is located to face the support panel;

a drum located in the cabinet, the drum comprising:
a cylindrical drum body that is open at a front side and a rear side;
a front cover fixed to the front side of the cylindrical drum body;
a rear cover fixed to the rear side of the cylindrical drum body; and
a drum entrance defined at the front cover;

a support panel perforated hole that is defined at the support panel and that is in communication with the drum entrance;
a drum connecting body that is provided at the support panel and that connects the support panel perforated hole to the drum entrance;
a drive part comprising:
a stator configured to generate a rotating field,
a rotor configured to be rotated by the rotating field, and
a power transmission part that is fixed to the fixed panel and that is configured to transmit a rotational motion of the rotor to the drum;

a front support part provided to at least one of the base panel or the support panel to rotatably support the drum; and
a rear support part provided to at least one of the base panel or the fixed panel and configured to set at least one of (i) a movable range of the rear cover toward the fixed panel or (ii) a movable range of the rear cover toward the base panel.

13. The apparatus of claim 12 , wherein the rear support part comprises:
a rear support frame fixed to the base panel or the fixed panel,
a first seat surface that is fixed to the rear support frame and that is located in a space between the rear cover and the fixed panel to set the movable range of the rear cover toward the fixed panel, and
a second seat surface that is fixed to the rear support frame and that is located in a space between the rear cover and the base panel to set the movable range of the rear cover toward the base panel.

14. The apparatus of claim 13 , wherein the first and second seat surfaces are in contact with the rear cover or are spaced apart from the rear cover.

15. The apparatus of claim 12 , wherein the rear support part comprises:
a rear support frame fixed to the base panel or the fixed panel, and
a rear roller rotatably fixed to the rear support frame.

16. The apparatus of claim 15 , further comprising a roller receiving recess that has a ring-shape and that is provided by bending the rear cover toward the front cover to define a space for receiving a circumferential surface of the rear roller.

17. The apparatus of claim 12 , wherein the fixed panel includes a drive part installation recess that defines a space for mounting the drive part.

18. The apparatus of claim 17 , wherein the fixed panel is concavely bent toward the rear cover of the drum to define the drive part installation recess.

19. The apparatus of claim 17 , wherein the drive part installation recess defines a fixed panel perforated hole to which a rotating shaft of the drum passes through.

20. The apparatus of claim 17 , wherein the drive part installation recess includes a drive part bracket that defines a space for fixing at least one of the rotor and the power transmission part.

Assignees

• Lg Electronics Inc

Inventors

• Kim Hyojun
• Cho Hongjun
• Kim Hyeonjoong
• Kwon Oshin
• Hwang Yangguk
• Lee Hyuksoo
• Lee Yeonju

Classifications

• D06F58/02

  having dryer drums rotating about a horizontal axis · CPC title

• H02K7/14

  Structural association with mechanical loads, e.g. with hand-held machine tools or fans (with fan or impeller for cooling the machine H02K9/06) · CPC title

• D06F37/304 Primary

  Arrangements or adaptations of electric motors · CPC title

• H02K9/02

  by ambient air flowing through the machine · CPC title

• D06F58/20

  General details of domestic laundry dryers  (D06F59/00 takes precedence) · CPC title