ROBOT CLEANER

• US 20110239382A1
• Filed: 03/31/2011
• Published: 10/06/2011
• Est. Priority Date: 04/01/2010
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: LEE, Jeihun, Kim, Jichul, Park, Jongwon, Kwak, Yun Keun, Yi, Donghoon, Yoon, Jeongsuk, Baek, Seungmin
• Granted Patent: US 8,733,796 B2
• Time in Patent Office: Days
• US Class Current: 15/3
• CPC Class Codes: A47L 2201/00 Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation
• CPC Class Codes: A47L 9/009 Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles
• CPC Class Codes: B60B 19/12 Roller-type wheels B60B19/06 takes precedence

Abstract

A robot cleaner includes wheels mounted at a lower side of a main body of the robot cleaner to allow for traveling of the main body, and wire winding prevention members mounted at the lower side of the main body, each wire winding prevention member having one end extending to be contactable with a rim of the corresponding wheel. The wire winding prevention member is preferably a torsion spring.

Claims

1. A robot cleaner comprising:

wheels mounted at a lower side of a main body of the robot cleaner to allow for traveling of the main body; and

wire winding prevention members mounted at the lower side of the main body, each wire winding prevention member having one end extending to be contactable with a rim of the corresponding wheel.

2. The robot cleaner of claim 1, wherein the rim of the wheel comprises a guide slit configured to accommodate the one end of the wire winding prevention member.

3. The robot cleaner of claim 2, wherein the guide slit is formed in a circumferential direction of the rim, and the one end of the wire winding prevention member is disposed perpendicular to a rotation shaft of the wheel.

4. The robot cleaner of claim 3, wherein the one end of the wire winding prevention member has elasticity toward the center of the rotation shaft of the wheel in a contact state with the rim of the wheel.

5. The robot cleaner of claim 1, wherein the wire winding prevention member is a torsion spring.

6. The robot cleaner of claim 1, wherein the wire winding prevention member extends in a direction that the main body moves forward to be contactable with the rim of the wheel.