ROBOT CLEANER

• US 20120181099A1
• Filed: 01/17/2012
• Published: 07/19/2012
• Est. Priority Date: 01/18/2011
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: MOON, Joo Sung, Song, Jeong Gon, Hwang, Yun Sup, Kim, Myeong Ho, Kim, Kyoung Woun
• Application Number:
  US13/351,766
• Publication Number:
  US 20120181099A1
• Time in Patent Office: Days
• US Class Current: 180/65.51
• 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: B60K 17/043 Transmission unit disposed in on near the vehicle wheel, or between the differential gear unit and the wheel
• CPC Class Codes: B60K 2007/0046 the motor moving together with the vehicle body, i.e. moving independently from the wheel axle
• CPC Class Codes: B60K 2007/0061 the motor axle being parallel to the wheel axle
• CPC Class Codes: B60K 7/0007 the motor being electric
• CPC Class Codes: B60Y 2200/80 Other vehicles not covered by groups B60Y2200/10 - B60Y2200/60
• CPC Class Codes: B60Y 2200/81 Toys

Abstract

A robot cleaner includes a main body, drive motors provided on the main body, each of the drive motors including a drive rotary shaft, drive wheels rotated by rotary force transmitted from the drive motors, gear units connecting the drive motors and the drive wheels, and wheel cover housings to support the drive wheels so that the drive wheels are pivotally rotated with respect to the main body, and pivot rotary shafts of the drive wheels and drive rotary shafts of the drive motors are coaxial with each other so as to achieve stable movement of the drive wheels.

Claims

1. A robot cleaner comprising:

a main body;

drive motors provided on the main body, each of the drive motors including a drive rotary shaft;

drive wheels rotated by rotary force transmitted from the drive motors;

gear units connecting the drive motors and the drive wheels; and

wheel cover housings to support the drive wheels so that the drive wheels are pivotally rotated with respect to the main body,

wherein pivot rotary shafts of the drive wheels and the drive rotary shafts of the drive motors are coaxial with each other.

2. The robot cleaner according to claim 1, wherein:

each of the wheel cover housings includes a drive wheel cover housing and a drive motor cover housing; and

an isolation wall is provided between the drive wheel cover housing and the drive motor cover housing.

3. The robot cleaner according to claim 2, wherein each of the drive motors is fixed to the drive motor cover housing.

4. The robot cleaner according to claim 2, wherein:

each of the drive motors further includes a PCB; and

the PCB is fixed to the drive motor cover housing.

5. The robot cleaner according to claim 3, wherein:

each of the drive motors further includes a PCB; and

the PCB is fixed to the drive motor cover housing.

6. The robot cleaner according to claim 2, wherein:

each of the wheel cover housings is provided with an arc-shaped wheel pivot shaft hole; and

each of the pivot rotary shafts of the drive wheels is installed so as to be movable along the wheel pivot shaft hole.

7. The robot cleaner according to claim 6, wherein a length of each of the arc-shaped pivot rotary shafts is shorter than a length of the arc-shaped wheel pivot shaft hole.

8. The robot cleaner according to claim 1, wherein the pivot rotary shafts are provided on the gear units.

9. The robot cleaner according to claim 1, wherein each of the wheel cover housings includes a suspension formed therein so as to elastically carry out pivotal rotation of each of the drive wheels.

10. The robot cleaner according to claim 9, wherein the suspension connects each of the wheel cover housings and each of the gear units.