Robot cleaner
First Claim
Patent Images
1. A robot cleaner comprising:
- a cleaner body defining an inside and having a suction unit that performs a vacuum cleaning operation;
a driving unit that causes the cleaner body to travel along a surface;
a sensing unit operatively connected with the cleaner body to sense irregularities on the surface the cleaner body travels along; and
a control unit that cooperates with the sensing unit and the driving unit to allow the cleaner body to cope with the irregularities on the surface,wherein the sensing unit comprises;
a link mechanism that allows a wheel installed at a bottom of the cleaner body to rise or fall with respect to the bottom of the cleaner body due to the irregularities sensed as the cleaner body travels; and
at least one switch which is activated by a movement of the link mechanism, thereby causing the control unit to control the driving unit to allow the cleaner body to travel in a manner that avoids the irregularities,wherein the link mechanism comprises;
a connection rod connected to the wheel and extended toward the inside of the cleaner body;
a supporter installed at the cleaner body;
a first link member having one end hinge-connected to an upper end of the supporter and another end hinge-connected to an upper end of the connection rod; and
a second link member having one end hinge-connected to the supporter at a predetermined distance from a position of the supporter where the first link member is connected and another end hinge-connected to the connection rod at a predetermined distance from a position of the connection rod where the first link member is connected.
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Accused Products
Abstract
A robot cleaner includes: a suction unit installed at a cleaner body, for sucking dirt on a floor; a driving unit for moving the cleaner body; a sensing unit mounted at the cleaner body, for sensing a depressed portion and a stepped portion such as a doorsill of a floor; and a control unit receiving a signal of the sensing unit, for controlling the driving unit to allow the cleaner body to avoid the depressed portion and the stepped portion, thereby correctly sensing the depressed portion or the stepped portion of the floor and avoiding such a portion. Accordingly, the cleaning operation is stably carried out.
50 Citations
14 Claims
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1. A robot cleaner comprising:
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a cleaner body defining an inside and having a suction unit that performs a vacuum cleaning operation; a driving unit that causes the cleaner body to travel along a surface; a sensing unit operatively connected with the cleaner body to sense irregularities on the surface the cleaner body travels along; and a control unit that cooperates with the sensing unit and the driving unit to allow the cleaner body to cope with the irregularities on the surface, wherein the sensing unit comprises; a link mechanism that allows a wheel installed at a bottom of the cleaner body to rise or fall with respect to the bottom of the cleaner body due to the irregularities sensed as the cleaner body travels; and at least one switch which is activated by a movement of the link mechanism, thereby causing the control unit to control the driving unit to allow the cleaner body to travel in a manner that avoids the irregularities, wherein the link mechanism comprises; a connection rod connected to the wheel and extended toward the inside of the cleaner body; a supporter installed at the cleaner body; a first link member having one end hinge-connected to an upper end of the supporter and another end hinge-connected to an upper end of the connection rod; and a second link member having one end hinge-connected to the supporter at a predetermined distance from a position of the supporter where the first link member is connected and another end hinge-connected to the connection rod at a predetermined distance from a position of the connection rod where the first link member is connected. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A robot cleaner comprising:
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a cleaner body defining an inside and having a suction unit that performs a vacuum cleaning operation; a driving unit that causes the cleaner body to travel along a surface; a sensing unit operatively connected with the cleaner body to sense irregularities on the surface that the cleaner body travels along; and a control unit cooperating with the sensing unit and the driving unit to allow the cleaner body to travel in a manner that copes with the sensed irregularities on the surface, wherein the sensing unit comprises; a wheel installed at a bottom of the cleaner body that physically contacts the surface that the cleaner body travels along, a mechanism supporting said wheel; and at least one switch which is activated by a movement of the mechanism, thereby causing the control unit to control the driving unit to allow the cleaner body to avoids the irregularities, wherein the mechanism comprises; a connection rod connected to the wheel and extended toward the inside of the cleaner body; a supporter installed at the cleaner body; a first link member having one end hinge-connected to an upper end of the supporter and another end hinge-connected to an upper end of the connection rod; and a second link member having one end hinge-connected to the supporter at a predetermined distance from a position of the supporter where the first link member is connected and another end hinge-connected to the connection rod at a predetermined distance from a position of the connection rod where the first link member is connected. - View Dependent Claims (14)
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Specification