VACUUM CLEANER
First Claim
1. A vacuum cleaner, comprising:
- a main body;
a suction nozzle configured to suck in air from a surface being cleaned;
a suction hose configured to guide the air sucked in through the suction nozzle to the main body;
a plurality of wheels provided at both sides of the main body;
a plurality of driving motors configured to provide the plurality of wheels with driving forces;
an actuator connected to the suction hose to rotate in left and right directions centering on a first rotation axis or in forward and backward directions centering on a second rotation axis according to movement of the suction hose;
a first displacement sensor configured to detect rotational displacement of the actuator in the left and right directions;
a second displacement sensor configured to detect rotational displacement of the actuator in the forward and backward directions; and
a control unit configured to control activation of the plurality of driving motors according to the rotational displacement of the actuator, which is detected by the first displacement sensor and the second displacement sensor, in the left and right directions and in the forward and backward directions, thereby advancing or rotating the main body in the left and right directions.
2 Assignments
0 Petitions
Accused Products
Abstract
A vacuum cleaner includes an actuator connected to a suction hose to rotate in left and right directions centering on a first rotation axis, or in forward and backward directions centering on a second rotation axis according to movement of the suction hose, a first displacement sensor detecting rotational displacement of the actuator in the left and right directions, and a second displacement sensor detecting rotational displacement of the actuator in the forward and backward directions, and controls activation of a plurality of driving motors according to the rotational displacement of the actuator in the left and right directions and in the forward and backward directions, which are detected by the first displacement sensor and the second displacement sensor, thereby advancing or rotating the main body in the left and right directions.
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Citations
29 Claims
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1. A vacuum cleaner, comprising:
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a main body; a suction nozzle configured to suck in air from a surface being cleaned; a suction hose configured to guide the air sucked in through the suction nozzle to the main body; a plurality of wheels provided at both sides of the main body; a plurality of driving motors configured to provide the plurality of wheels with driving forces; an actuator connected to the suction hose to rotate in left and right directions centering on a first rotation axis or in forward and backward directions centering on a second rotation axis according to movement of the suction hose; a first displacement sensor configured to detect rotational displacement of the actuator in the left and right directions; a second displacement sensor configured to detect rotational displacement of the actuator in the forward and backward directions; and a control unit configured to control activation of the plurality of driving motors according to the rotational displacement of the actuator, which is detected by the first displacement sensor and the second displacement sensor, in the left and right directions and in the forward and backward directions, thereby advancing or rotating the main body in the left and right directions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 16)
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14. (canceled)
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15. (canceled)
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17. (canceled)
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18. (canceled)
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19. (canceled)
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20. (canceled)
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21. (canceled)
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22. A vacuum cleaner, comprising:
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a main body; a plurality of wheels provided at both sides of the main body; a plurality of driving motors configured to provide the plurality of wheels with driving forces; a plurality of reduction gears configured to deliver the driving forces of the plurality of driving motors to the plurality of wheels; an actuator configured to rotate in left and right directions centering on a first rotation axis or in forward and backward directions centering on a second rotation axis; a first displacement sensor configured to detect rotational displacement of the actuator in the left and right directions; a second displacement sensor configured to detect rotational displacement of the actuator in the forward and backward directions; and multiple clutches configured to intermit power transmission by connecting or disconnecting the plurality of reduction gears and the plurality of wheels, wherein the vacuum cleaner has an active driving mode in which the multiple clutches are connected and a manual driving mode in which the multiple clutches are disconnected. - View Dependent Claims (23, 24)
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25. A vacuum cleaner, comprising:
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a main body configured to generate a suction force and to separate dust from air being sucked in; a suction nozzle unit provided at a lower portion of the main body to suck in air from a surface being cleaned; a driving unit having a plurality of wheels and configured to drive the main body; a handle unit provided at an upper portion of the main body to be relatively rotatable with respect to the main body; and a control unit configured to control the driving unit on the basis of a relative rotational displacement of the handle unit with respect to the main body to enable the main body to perform active driving. - View Dependent Claims (26, 28)
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27. (canceled)
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29. (canceled)
Specification