Vacuum cleaner
First Claim
Patent Images
1. A vacuum cleaner comprising:
- a cleaner body;
wheels provided at both side surfaces of the cleaner body, the wheels being configured to allow the vacuum cleaner to travel on ground and to allow the cleaner body to rotate about the wheels in forward and reverse directions;
a wheel motor assembly provided between an outer surface of the cleaner body and each of the wheels, the wheel motor assembly being configured to rotate at least one of the wheels;
a detecting part provided at the cleaner body and configured to detect an inclination of the cleaner body; and
a PCB configured to cause the wheel motor assembly to be driven according to the inclination of the cleaner body detected by the detecting part,wherein the wheel motor assembly is positioned rearward of a vertical extension line of a rotating center of the wheels such that a center of gravity of the cleaner body is located closer to a rear end of the cleaner body than its front end, andwherein the center of gravity of the cleaner body is located rearward of rotating centers of the wheels such that the cleaner body is configured, based on the vacuum cleaner being stationary, to be inclined toward the reverse direction.
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Accused Products
Abstract
Provided is a vacuum cleaner including a cleaner body; a moving wheel installed at both side surfaces of the cleaner body to be rotatable for travel of the cleaner body and configured to rotatably support the cleaner body; and a wheel motor assembly provided between an outer surface of the cleaner body and the moving wheel and configured to rotate the moving wheel for the travel of the cleaner body, wherein the wheel motor assembly is rotatably coupled to the moving wheel at a rear of a vertical extension line of a rotating center of the moving wheel.
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Citations
23 Claims
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1. A vacuum cleaner comprising:
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a cleaner body; wheels provided at both side surfaces of the cleaner body, the wheels being configured to allow the vacuum cleaner to travel on ground and to allow the cleaner body to rotate about the wheels in forward and reverse directions; a wheel motor assembly provided between an outer surface of the cleaner body and each of the wheels, the wheel motor assembly being configured to rotate at least one of the wheels; a detecting part provided at the cleaner body and configured to detect an inclination of the cleaner body; and a PCB configured to cause the wheel motor assembly to be driven according to the inclination of the cleaner body detected by the detecting part, wherein the wheel motor assembly is positioned rearward of a vertical extension line of a rotating center of the wheels such that a center of gravity of the cleaner body is located closer to a rear end of the cleaner body than its front end, and wherein the center of gravity of the cleaner body is located rearward of rotating centers of the wheels such that the cleaner body is configured, based on the vacuum cleaner being stationary, to be inclined toward the reverse direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A vacuum cleaner comprising:
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a cleaner body; wheels provided at both side surfaces of the cleaner body, the wheels being configured to allow the vacuum cleaner to travel on ground and to allow the cleaner body to rotate about the wheels in forward and reverse directions; a wheel motor assembly provided between an outer surface of the cleaner body and each of the wheels, the wheel motor assembly being configured to rotate at least one of the wheels; a detecting part provided at the cleaner body and configured to detect an inclination of the cleaner body; and a PCB configured to cause the wheel motor assembly to be driven according to the inclination of the cleaner body detected by the detecting part, wherein the wheel motor assembly is positioned rearward of a vertical extension line of a rotating center of the wheels such that a center of gravity of the cleaner body is located closer to a rear end of the cleaner body than its front end, and wherein the PCB is configured to cause the wheel motor assembly to be driven based on an angle between the cleaner body and the ground detected by the detecting part being smaller as the vacuum cleaner travels than when the vacuum cleaner is stationary.
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23. A vacuum cleaner comprising:
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a cleaner body; wheels provided at both side surfaces of the cleaner body, the wheels being configured to allow the vacuum cleaner to travel on ground and to allow the cleaner body to rotate about the wheels in forward and reverse directions; a wheel motor assembly provided between an outer surface of the cleaner body and each of the wheels, the wheel motor assembly being configured to rotate at least one of the wheels; a detecting part provided at the cleaner body and configured to detect an inclination of the cleaner body; and a PCB configured to cause the wheel motor assembly to be driven according to the inclination of the cleaner body detected by the detecting part, wherein the wheel motor assembly is positioned rearward of a vertical extension line of a rotating center of the wheels such that a center of gravity of the cleaner body is located closer to a rear end of the cleaner body than its front end, and wherein the PCB is configured to control the wheel motor assembly such that an angle between the cleaner body and the ground becomes substantially horizontal based on the vacuum cleaner travelling.
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Specification