HEADPIECE FOR VACUUM CLEANER Russian patent published in 2008 - IPC A47L9/04 

FIELD: headpiece is assigned for vacuum cleaner.

SUBSTANCE: it has body having sucking in inlet, shaker installed with possibility of rotating in body for producing vibrations on surface of floor and air turbine for drive of shaker. Headpiece has inlet separate from its sucking in inlet for supplying fresh air to turbine with whose aid its rotation is executed and control arrangement for preventing rotation or reduction of speed of rotation of shaker. Control arrangement reacts on speed of rotation of turbine or flow of air to turbine or through it and is fulfilled with possibility of traveling between open position in which it passes air to turbine and closed position in which in prevents passing air into turbine. Control arrangement has mobile part having inner volume which is connected with main passage for passing air to turbine. At that mobile part reacts of difference of pressure between inner volume and surrounding air.

EFFECT: construction of headpiece allows eliminate possibility of destruction of its elements at changing speed of rotation of turbine rotating with fresh air in different conditions of operations of vacuum cleaner with headpiece.

18 cl, 14 dwg