ROBOT-VACUUM CLEANER Russian patent published in 2006 - IPC A47L9/28 A47L11/40 A47L9/04 

FIELD: mechanical engineering.

SUBSTANCE: robot-vacuum cleaner has adjustable brush whose height is automatically regulated in accordance with state of surface to be cleaned. Housing of robot-vacuum cleaner has control part programmed for controlling robot-vacuum cleaner to provide for automatic displacement and cleaning of floor surface to be cleaned in accordance with predetermined values, driven part which is actuated in accordance with control signal delivered from control part, dust sucking part adapted for catching and collecting of dust with the help of electric engine designed for creating suction force, and receptacle part of pivot joint, said part protruding toward surface of floor to be cleaned. Brush casing has protrusion of pivot joint, rotationally connected with said receptacle part of pivot joint, and suction channel connected in sealing relation to housing part adapted for dust suction. Brush casing rotates upward and downward relative to receptacle part of pivot joint in accordance with state of floor surface to be cleaned. Brush of robot-vacuum cleaner is positioned for rotation between its casing and cover. Brush cover retaining means has at least one retaining member mounted within brush cover for rotation therein, extending through opening adapted for mounting of retainer and defined within brush cover, said retaining member being adapted for rotation in clockwise and counterclockwise directions and comprising retainer including long axis and short axis at its one end and round handling portion at its other end. Round handling portion is designed for rotating retainer between retaining position and releasing position. Brush cover retaining means has at least one retaining opening whose position corresponds to position of brush cover retaining member and whose shape also corresponds to shape of retainer.

EFFECT: increased efficiency by keeping predetermined distance between brush and floor surface regardless of characteristics of floor surface, and simplified and convenient brush maintenance.

10 cl, 7 dwg