Apparatus for treating laundry and method for controlling the same

Patent metadata

Field	Value
Publication number	US-9273425-B2
Application number	US-201113080112-A
Country	US
Kind code	B2
Filing date	Apr 5, 2011
Priority date	Apr 5, 2010
Publication date	Mar 1, 2016
Grant date	Mar 1, 2016

Abstract

Provided are an apparatus for treating laundry and a method for controlling the same. The laundry treating apparatus includes a cabinet, a drum, a motor, a door, and a door switch. The cabinet defines an external appearance and has a laundry loading hole for laundry. The drum houses the laundry and is rotatably installed. The motor rotates the drum. The door is rotatably coupled to the cabinet to open and close the laundry loading hole. The door switch allows the door to be closed. Here, when close protection is set by manipulation of a close protection button, or the drum vibrates without rotation of the motor, the door switch allows the door not to be closed.

First claim

What is claimed is:

1. A laundry treating apparatus comprising:
a cabinet defining an external appearance and having a laundry loading hole for laundry;
a drum housing the laundry and rotatably installed;
a motor rotating the drum;
a door rotatably coupled to the cabinet to open and close the laundry loading hole;
a door switch to open or close the door;
a hook provided in the door to latch on the door switch for closing the door;
a rotation sensing unit to sense the rotation of the motor;
a vibration sensing unit to sense the vibration of the drum;
a controller to release the hook from the door switch to open the door when the rotation sensor does not sense the rotation of the motor and the vibration sensor senses the vibration of the drum; and
a support unit mounted in the door to contact the cabinet and maintain a certain separation gap between the door and the cabinet when the door is opened.

2. The laundry treating apparatus of claim 1 , wherein the door switch comprises:
a switch body to which the hook is latched; and
a lever rotatably coupled to the switch body and contacting the hook to allow the hook not to be latched to the switch body.

3. The laundry treating apparatus of claim 2 , wherein the door switch further comprises a lever driving unit for rotating the lever such that the lever is not latched to the door switch.

4. The laundry treating apparatus of claim 3 , wherein the lever driving unit comprises:
a cam that is rotatable; and
a follower contacting the cam and rectilinearly moving to rotate the lever.

5. The laundry treating apparatus of claim 4 , wherein the cam rotates in linkage with the close protection button when the close protection button is manipulated.

6. The laundry treating apparatus of claim 4 , wherein the lever driving unit further comprises a motor for rotating the cam when the close protection is set by the manipulation of the close protection button.

7. The laundry treating apparatus of claim 3 , wherein the lever driving unit rotates the lever in linkage with the close protection button when the close protection button is manipulated.

8. The laundry treating apparatus of claim 3 , wherein the lever driving unit comprises a solenoid generating a rectilinear force to rotate the lever.

9. The laundry treating apparatus of claim 1 , wherein the door switch comprises:
a switch body to the hook is latched; and
a slider slidably provided in the switch body and contacting the hook to prevent the hook from latching to the door switch.

10. The laundry treating apparatus of claim 9 , further comprising:
a slider actuator for moving the slider, wherein the controller controls the slider actuator to move the slider.

Assignees

• Kim Jinwoong
• Chang Jaewon
• Kim Youngho
• Lg Electronics Inc

Inventors

• Kim Jinwoong
• Chang Jaewon
• Kim Youngho

Classifications

• D06F37/42 Primary

  Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door · CPC title

• D06F39/14 Primary

  Doors or covers; Securing means therefor · CPC title

• D06F2224/00

  Textiles & Paper · mapped topic

• D06F2105/44

  Opening, closing or locking of doors · CPC title

• D06F34/20

  Parameters relating to constructional components, e.g. door sensors · CPC title