SUCTION BRUSH FOR VACUUM CLEANER (VERSIONS) Russian patent published in 2006 - IPC A47L9/02 

FIELD: mechanical engineering, in particular suction brush used in vacuum cleaner.

SUBSTANCE: suction brush has cover, lower plate rotatingly connected with cover and equipped with suction aperture for drawing dust from surface to be cleaned by suction force created with the use of vacuum source provided within vacuum cleaner housing. There is lower plate retainer provided between cover and lower plate and adapted for selective attachment of lower plate to cover. Lower plate retainer comprises foot switch positioned for rotation in cover and equipped with actuating handle extending through cover aperture, and first locking part. Pivotal brush plate is positioned in cover for rotation under the action of foot switch. Brush plate has second locking part for locking and unlocking of brush plate in cooperation with first locking part. Flexible member is positioned between lower plate and brush plate of lower plate retainer so as to flexibly move end of lower plate in predetermined direction. According to one of versions of embodiment, suction brush has brush located on brush plate and protruding between cover and lower plate upon rotation of brush plate. Such construction allows suction brush to be adjusted depending on characteristics of surface to be cleaned, such as carpet or floor.

EFFECT: increased efficiency and exactness of cleaning owing to tight contacting of lower plate with surface under cleaning operation without scratching of said surface, and improved assembling of suction brush without employment of fastening means such as bolts.

8 cl, 12 dwg