Vacuum cleaner
First Claim
1. A vacuum cleaner, comprising:
- a main body;
a suction nozzle configured to suck in air;
a suction hose configured to guide the air sucked in through the suction nozzle to the main body;
a wheel configured to rotate to move the main body;
a driving motor configured to provide a driving force to the wheel to rotate the wheel;
an actuator provided on the main body, connected to the suction hose, and includinga first rotating body configured to rotate along a first rotation axis according to a movement of the suction hose, anda second rotating body configured to rotate along a second rotation axis according to the movement of the suction hose;
a vent unit provided inside the actuator to communicate with the suction hose;
a first displacement sensor configured to detect a rotational displacement of the first rotating body of the actuator along the first rotation axis;
a second displacement sensor configured to detect a rotational displacement of the second rotating body of the actuator along the second rotation axis; and
a control unit configured to control the driving motor according to the detected rotational displacement of the first rotating body and the detected rotational displacement of the second rotating body so that the main body moves according to the movement of the suction hose,wherein the vent unit includes;
a first vent coupled to a lower portion of the second rotating body to communicate with the suction hose, anda second vent rotatably coupled to the first vent by a universal joint to communicate with the first vent.
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.
13 Citations
18 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; a suction hose configured to guide the air sucked in through the suction nozzle to the main body; a wheel configured to rotate to move the main body; a driving motor configured to provide a driving force to the wheel to rotate the wheel; an actuator provided on the main body, connected to the suction hose, and including a first rotating body configured to rotate along a first rotation axis according to a movement of the suction hose, and a second rotating body configured to rotate along a second rotation axis according to the movement of the suction hose; a vent unit provided inside the actuator to communicate with the suction hose; a first displacement sensor configured to detect a rotational displacement of the first rotating body of the actuator along the first rotation axis; a second displacement sensor configured to detect a rotational displacement of the second rotating body of the actuator along the second rotation axis; and a control unit configured to control the driving motor according to the detected rotational displacement of the first rotating body and the detected rotational displacement of the second rotating body so that the main body moves according to the movement of the suction hose, wherein the vent unit includes; a first vent coupled to a lower portion of the second rotating body to communicate with the suction hose, and a second vent rotatably coupled to the first vent by a universal joint to communicate with the first vent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. 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 (14, 15)
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16. 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; a driving unit configured to drive the main body; a handle unit provided at an upper portion of the main body to be rotatable with respect to the main body; an actuator including a first rotating body configured to rotate along a first rotation axis according to a movement of the handle unit, a second rotating body configured to rotate along a second rotation axis according to the movement of the handle unit, and a displacement sensor configured to detect a rotational displacement of the actuator, wherein the rotational displacement of the actuator includes a rotational displacement of first rotating body along the first rotation axis and a rotational displacement of the second rotating body along the second rotation axis; a vent unit provided inside the actuator to communicate with the handle unit; and a control unit configured to control the driving unit on the basis of the rotational displacement of the actuator, wherein the vent unit includes; a first vent coupled to a lower portion of the second rotating body to communicate with the handle unit, and a second vent rotatably coupled to the first vent by a universal joint to communicate with the first vent. - View Dependent Claims (17, 18)
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Specification