Driving unit and cleaning robot comprising same
First Claim
1. A cleaning robot comprising:
- a body; and
a driving unit to drive the body;
wherein the driving unit comprises;
a first driving motor and a second driving motor to generate driving power;
a driving wheel to rotate when the driving power is delivered to the driving wheel from the first driving motor; and
a wheel frame to support the driving wheel to be rotatable, and rotate between a first position and a second position with respect to a motor shaft of the first driving motor,wherein the wheel frame rotates in at least one section between the first position and the second position when the driving power is delivered to the wheel frame from the second driving motor.
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Accused Products
Abstract
Disclosed herein is a cleaning robot including an improved driving unit to escape from an undriveable state occurring under various driving conditions. The cleaning robot includes a body, and a driving unit that drives the body. The driving unit includes a first driving motor and a second driving motor that generate driving power; a driving wheel that rotates when the driving power is delivered to the driving wheel from the first driving motor; and a wheel frame that supports the driving wheel to be rotatable and rotates between a first position and a second position with respect to a motor shaft of the first driving motor. The wheel frame rotates in at least one section between the first position and the second position when the driving power is delivered to the wheel frame from the second driving motor.
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Citations
20 Claims
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1. A cleaning robot comprising:
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a body; and a driving unit to drive the body; wherein the driving unit comprises; a first driving motor and a second driving motor to generate driving power; a driving wheel to rotate when the driving power is delivered to the driving wheel from the first driving motor; and a wheel frame to support the driving wheel to be rotatable, and rotate between a first position and a second position with respect to a motor shaft of the first driving motor, wherein the wheel frame rotates in at least one section between the first position and the second position when the driving power is delivered to the wheel frame from the second driving motor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A driving unit installed in a cleaning robot to drive the cleaning robot, the driving unit comprising:
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a driving wheel; a wheel frame to support the driving wheel to be rotatable; an elastic member to pressurize the wheel frame; a first driving motor to generate driving power for rotating the driving wheel; and a second driving motor to generate driving power for rotating the wheel frame. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A cleaning robot comprising:
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a body; a driving unit installed in the body to drive the body, wherein the driving unit comprises; a driving wheel; a wheel frame to support the driving wheel to be rotatable; and a driving unit including a driving motor to generate driving power for rotating the wheel frame; and a controller to control the driving unit by determining a driving state of the body, wherein, when it is determined that the body is in a stuck state which prevents the body from driving, the controller drives the driving motor to rotate the wheel frame.
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Specification