VACUUM CLEANER Russian patent published in 2002 - IPC

FIELD: vacuum-cleaning equipment. SUBSTANCE: vacuum cleaner has suction head set composed of head body equipped with suction opening for sucking dust-laden air from surface into body. Head body has mounting unit provided with mounting opening, which is communicated with suction opening. Hollow cylindrical suction pipe is provided with dust-collecting brush extending along lower edge thereof and is adapted to be detachably mounted inside mounting opening. Spring-loaded locking pin is adapted for releasable fixation of suction pipe in predetermined position inside mounting unit of head body. Connecting pipe is joined to lengthening pipe of vacuum cleaner casing. Connector is pivotally mounted on domed end of connecting pipe so that it may be inclined with respect to connecting pipe in vertical plane. Connector is also joined to suction pipe so as to allow suction pipe to rotate in horizontal plane in opposite directions. EFFECT: simplified construction, enhanced reliability in operation and increased efficiency. 9 cl, 13 dwg