Robot cleaner
First Claim
1. A robot cleaner comprising:
- a first motor;
a pad assembly including a rotatable portion of the pad assembly coupled to the first motor to receive a rotational force from the first motor and configured to rotate in a clockwise direction or a counterclockwise direction so that when the robot cleaner is positioned on a surface to be cleaned, a bottom surface of the rotatable portion of the pad assembly contacting the surface to be cleaned; and
a second motor;
a first shaft connected to the second motor, the first shaft includinga first driving shaft connected with the second motor, anda first connection shaft geared with the first driving shaft; and
a first wire connected to the pad assembly and the first shaft, the first wire includinga first portion configured to connect the first driving shaft of the first shaft and one side of the pad assembly, anda second portion configured to connect the first connection shaft of the first shaft and another side of the pad assembly that is opposite to the one side the pad assembly,so that at least a portion of the rotatable pad assembly is tilted by a movement of the first wire by a driving force of the second motor so when the robot cleaner is positioned on the surface to be cleaned the bottom surface of the titled rotatable portion of the pad assembly applies a non-uniform frictional force with respect to the surface to be cleanedand the robot cleaner moves in a particular direction by the non-uniform frictional force between the bottom surface of the rotatable portion of the pad assembly and the surface to be cleaned.
1 Assignment
0 Petitions
Accused Products
Abstract
A robot cleaner includes a plurality of motors each of which transmits a driving force, a pad assembly which is connected to one of the plurality of motors to receive a rotational force from the motor, to rotate in a clockwise or counterclockwise direction, and thus to clean a floor surface, and a wire which is connected to the pad assembly and another one of the plurality of motors so that the pad assembly is tilted by the driving force of the motor, wherein the robot cleaner moves in a particular direction by a non-uniform frictional force between a bottom surface of the pad assembly and the floor surface. The robot cleaner uses wires to tilt the pad assembly and, thus, it is possible to miniaturize the robot cleaner.
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Citations
21 Claims
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1. A robot cleaner comprising:
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a first motor; a pad assembly including a rotatable portion of the pad assembly coupled to the first motor to receive a rotational force from the first motor and configured to rotate in a clockwise direction or a counterclockwise direction so that when the robot cleaner is positioned on a surface to be cleaned, a bottom surface of the rotatable portion of the pad assembly contacting the surface to be cleaned; and a second motor; a first shaft connected to the second motor, the first shaft including a first driving shaft connected with the second motor, and a first connection shaft geared with the first driving shaft; and a first wire connected to the pad assembly and the first shaft, the first wire including a first portion configured to connect the first driving shaft of the first shaft and one side of the pad assembly, and a second portion configured to connect the first connection shaft of the first shaft and another side of the pad assembly that is opposite to the one side the pad assembly, so that at least a portion of the rotatable pad assembly is tilted by a movement of the first wire by a driving force of the second motor so when the robot cleaner is positioned on the surface to be cleaned the bottom surface of the titled rotatable portion of the pad assembly applies a non-uniform frictional force with respect to the surface to be cleaned and the robot cleaner moves in a particular direction by the non-uniform frictional force between the bottom surface of the rotatable portion of the pad assembly and the surface to be cleaned. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A robot cleaner comprising:
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a pad assembly installed at a base of the robot cleaner and having a rotatable pad installed at a bottom surface thereof; a first motor coupled with the pad assembly to rotate at least a portion of the pad assembly in a clockwise direction or a counterclockwise direction; a second motor and a third motor which are provided at the base of the robot cleaner; a first shaft connected to the second motor, the first shaft including a first driving shaft connected with the second motor, and a first connection shaft geared with the first driving shaft; a first wire connected with the pad assembly and the first shaft to tilt at least a portion of the pad assembly with respect to an x-axis, the first wire including a first portion configured to connect the first driving shaft and one side of the pad assembly, and a second portion configured to connect the first connection shaft and another side of the pad assembly that is opposite to the one side the pad assembly; and a second wire connected with the pad assembly and the third motor to tilt at least the portion of the pad assembly with respect to a y-axis, wherein, when the robot cleaner is positioned on the surface and the at least the portion of the pad assembly is tilted by one of the first wire and the second wire or by a combination of the first wire and the second wire, the robot cleaner moves in a particular direction by a non-uniform frictional force between the bottom surface of the tilted rotatable pad and the surface. - View Dependent Claims (15, 16, 17)
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18. A robot cleaner comprising:
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a pad assembly installed at a base of the robot cleaner and having a rotatable pad installed at a bottom surface thereof; a first motor coupled with the pad assembly to rotate at least a portion of the pad assembly in a clockwise direction or a counterclockwise direction; a second motor and a third motor which are provided at the base of the robot cleaner; a first wire connected with the pad assembly and the second motor to tilt at least a portion of the pad assembly with respect to an x-axis; and a second wire connected with the pad assembly and the third motor to tilt at least the portion of the pad assembly with respect to a y-axis, wherein, when the robot cleaner is positioned on a surface and the at least the portion of the pad assembly is tilted by one of the first wire and the second wire or by a combination of the first wire and the second wire, the robot cleaner moves in a particular direction by a non-uniform frictional force between the bottom surface of the tilted rotatable pad and the surface, wherein the pad assembly comprises an elastic body configured to adapt an entire surface of the pad to be in contact with the surface, and wherein the elastic body is received in a flexible tube having a plurality of wrinkles and formed of a rubber material.
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19. A robot cleaner comprising:
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a first motor; a pad assembly including at least a rotatable portion of the pad assembly connected to the first motor by a rotational plate to receive a rotational force from the first motor and configured to rotate in a clockwise direction or a counterclockwise direction so that when the robot cleaner is positioned on a surface to be cleaned, a bottom surface of the rotatable portion of the pad assembly contacting the surface to be cleaned; a water supplying member installed at the rotational plate, the water supplying member comprising a central hole in communication with a water tank and a side hole formed at a side surface thereof to be in communication with the central hole; and a second motor; a first shaft connected to the second motor, the first shaft including a first driving shaft connected with the second motor, and a first connection shaft geared with the first driving shaft; and a first wire connected to the pad assembly and the first shaft, the first wire including a first portion configured to connect the first driving shaft of the first shaft and one side of the pad assembly, and a second portion configured to connect the first connection shaft of the first shaft and another side of the pad assembly that is opposite to the one side the pad assembly, so that at least a portion of the rotatable pad assembly is tilted by a movement of the first wire and the least a portion of the pad assembly is tiltable by the movement of the first wire by the driving force of the second motor so when the robot cleaner is positioned on the surface to be cleaned, the bottom surface of the titled rotatable portion of the pad assembly applies a non-uniform frictional force with respect to the surface to be cleaned. - View Dependent Claims (20)
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21. A robot cleaner comprising:
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a first motor; a pad assembly comprising a rotational plate rotatable in a clockwise direction or a counterclockwise direction by the first motor to clean a surface with a bottom surface of a pad attachable to the rotational plate assembly contacting the surface to be cleaned; a water supplying member installed at the rotational plate, the water supplying member comprising a central hole in communication with a water tank and a side hole formed at a side surface thereof to be in communication with the central hole; a second motor; a first shaft connected to the second motor, the first shaft including a first driving shaft connected with the second motor, and a first connection shaft geared with the first driving shaft; and a first wire connected to the pad assembly and the second motor, the first wire including a first portion configured to connect the first driving shaft and one side of the pad assembly, and a second portion configured to connect the first connection shaft and another side of the pad assembly that is opposite to the one side the pad assembly, so that at least a portion of the pad assembly is tiltable by a movement of the first wire by a driving force of the second motor so when the robot cleaner is positioned on the surface to be cleaned and titled by the movement of the first wire, the bottom surface of the tilted rotational plate of the pad assembly applies a non-uniform frictional force with respect to the surface to be cleaned, and the robot cleaner is movable in a particular direction by the non-uniform frictional force between the bottom surface of the rotational plate of the pad assembly and the surface to be cleaned.
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Specification