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US 12,543,903 B2Granted
Robot cleaner
AssigneeLG Electronics Inc.
InventorsSeungjin Lee, Hwang Kim
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a robot cleaner, more particularly, to a robot cleaner that may rotate auxiliary wheels to run over a tilted route or an obstacle, when cannot run over a tilted route or an obstacle because main wheels are not contacting with the floor.
Claims12
A robot cleaner, comprising:
- a body;
- main wheels provided in the body to move or rotate the body;
- an auxiliary wheel provided in the body to support a front side of the body or a rear side of the body;
- and
- a transfer unit configured to supply power to the auxiliary wheel independently from the main wheels, wherein the auxiliary wheel is configured to rotate idly when the transfer unit does not contact the auxiliary wheel, and the auxiliary wheel is configured to rotate when the transfer unit contacts the auxiliary wheel, and wherein the transfer unit comprises:
- a rotation member configured to rotate the auxiliary wheel;
- a motor configured to provide power to the rotation member;
- and
- a first member connected with the rotation member and the motor and configured to selectively provide contact between the auxiliary wheel and the rotation member by moving with respect to the body vertically.
6 more elements
A robot cleaner, comprising:
- a body;
- main wheels provided in the body to move or rotate the body;
- an auxiliary wheel provided in the body to support a front side of the body or a rear side of the body;
- a fixing member that forms a rotational axis of the auxiliary wheel and rotatable with respect to the body;
- and
- a transfer unit configured to supply power to the auxiliary wheel independently from the main wheels, wherein the auxiliary wheel aligns in a running direction of the body and rotates when the transfer unit is coupled to the fixing member, wherein the transfer unit comprises a first module vertically moved with respect to the body and comprising a projection, and wherein the fixing member comprises a guide portion having a groove having the projection inserted therein.
3 more elements
Dependencies are inferred from the claim text.