Suction nozzles for vacuum cleaners

Claim 1

A suction nozzle for a vacuum cleaner comprising a nozzle body adapted on its underside to receive interchangeable strips which define the front and rear margins of a suction passage, rollers at each end of said passage cooperating with a front said strip to form lateral suction gaps communicating with said passage, and with a rear said strip to laterally confine the latter, a cranked axle bar for said rollers carried in open bushings of different orientations, said bushings being integrally formed with said body, means for acting on said axle bar to adjust the height of the rollers, and a swivel socket communicating with said passage for connection to suction apparatus, the socket having two mutually rotatable parts, one said part being fixed with the nozzle body, a first one of said socket parts carrying a bearing ring which receives a spring washer which engages a second one of said socket parts to locate the latter axially with respect to said first socket part.