Robot cleaner and wheel assembly
First Claim
Patent Images
1. A robot cleaner comprising:
- a body having a suction port;
a plurality of wheels at the body; and
at least one driving device configured to provide a driving force for driving at least one of the plurality of wheels,wherein each of the plurality of wheels includes;
a wheel frame to receive the driving force of the at least one driving device;
an outer wheel to couple to the wheel frame;
an inner wheel to couple to the wheel frame; and
a cover to cover a circumference of the outer wheel and a circumference of the inner wheel,wherein a rotation center of the outer wheel is aligned with a rotation center of the inner wheel,wherein a thickness of the outer wheel in an extension direction of the rotation center of the outer wheel is greater than a thickness of the inner wheel in an extension direction of the rotation center of the inner wheel,wherein the outer wheel includes a plurality of first slits such that the outer wheel is to be deformed by external force,wherein the inner wheel includes a plurality of second slits such that the inner wheel is to be deformed by external force, andwherein an arrangement the plurality of first slits is different from an arrangement of the plurality of second slits, and a shape of at least one of the plurality of first slits is different from at least one of the plurality of second slits.
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Abstract
A robot cleaner includes: a body having a suction port; a plurality of wheels for movement of the body; and a plurality of driving devices configured to drive the plurality of wheels, respectively, wherein each of the plurality of wheels includes an inner wheel and an outer wheel having a thickness that is larger than a thickness of the inner wheel, and each of the inner wheel and the outer wheel includes a plurality of slits.
32 Citations
21 Claims
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1. A robot cleaner comprising:
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a body having a suction port; a plurality of wheels at the body; and at least one driving device configured to provide a driving force for driving at least one of the plurality of wheels, wherein each of the plurality of wheels includes; a wheel frame to receive the driving force of the at least one driving device; an outer wheel to couple to the wheel frame; an inner wheel to couple to the wheel frame; and a cover to cover a circumference of the outer wheel and a circumference of the inner wheel, wherein a rotation center of the outer wheel is aligned with a rotation center of the inner wheel, wherein a thickness of the outer wheel in an extension direction of the rotation center of the outer wheel is greater than a thickness of the inner wheel in an extension direction of the rotation center of the inner wheel, wherein the outer wheel includes a plurality of first slits such that the outer wheel is to be deformed by external force, wherein the inner wheel includes a plurality of second slits such that the inner wheel is to be deformed by external force, and wherein an arrangement the plurality of first slits is different from an arrangement of the plurality of second slits, and a shape of at least one of the plurality of first slits is different from at least one of the plurality of second slits. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A wheel assembly comprising:
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a wheel frame to receive a driving force; an outer wheel to couple to an outer peripheral surface of the wheel frame; an inner wheel to couple to the outer peripheral surface of the wheel frame; and a cover to cover a circumference of the outer wheel and a circumference of the inner wheel, wherein a thickness of the outer wheel in an extension direction of a rotation center of the outer wheel is larger than a thickness of the inner wheel in an extension direction of a rotation center of the inner wheel, wherein the outer wheel includes a plurality of first slits such that the outer wheel is deformed by external force, and wherein the inner wheel includes a plurality of second slits such that the inner wheel is deformed by external force. - View Dependent Claims (14, 15)
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16. A robot cleaner comprising:
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a body having a suction port; a wheel assembly provided at the body; and at least one driving device to provide a driving force to the wheel assembly, wherein the wheel assembly includes; a wheel frame to receive a driving force; an outer wheel to couple to an outer peripheral surface of the wheel frame; an inner wheel to couple to the outer peripheral surface of the wheel frame; and a cover to cover a circumference of the outer wheel and a circumference of the inner wheel, wherein a thickness of the outer wheel in an extension direction of a rotation center of the outer wheel is larger than a thickness of the inner wheel in an extension direction of a rotation center of the inner wheel, wherein the outer wheel includes a plurality of first slits such that the outer wheel is deformed by external force, and wherein the inner wheel includes a plurality of second slits such that the inner wheel is deformed by external force.
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17. A robot cleaner comprising:
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a body having a suction port; a wheel assembly having a plurality of wheels at the body; and at least one driving device at the body to provide a driving force to at least one of the plurality of wheels, wherein the at least one of the plurality of wheels includes; a wheel frame to receive the driving force of the at least one driving device; a first wheel to couple to the wheel frame; and a second wheel to couple to the wheel frame, wherein a rotational point of the first wheel is aligned with a rotational point of the second wheel, wherein a thickness of the first wheel in an extension direction of a rotation center of the first wheel is larger than a thickness of the second wheel in an extension direction of a rotation center of the second wheel, wherein the first wheel includes a plurality of first slits, wherein the second wheel includes a plurality of second slits, and wherein an arrangement of the plurality of first slits is different from an arrangement the plurality of second slits, and a shape of one of the first slits is different from a shape of one of the second slits. - View Dependent Claims (18, 19, 20, 21)
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Specification