| 摘要 |
THE INVENTION PROVIDES A CLEANER HEAD (50;90; 130; 180) FOR A VACUUM CLEANER COMPRISING A HOUSING (52;92;132;182), A SUCTION OPENING (60;100;142;184) IN A FACE (58;96; 136; 186) OF THE HOUSING WHICH IS INTENDED TO FACE A FLOOR SURFACE, A SUCTION PASSAGE (110; 146) FOR CONDUCTING DIRT-LADEN AIR FROM THE SUCTION OPENING (60;100;142;184) THROUGH THE CLEANER HEAD TO AN OUTLET THEREOF, A BLEED AIR INLET (200) ARRANGED IN THE HOUSING AND CLOSED BY A BLEED VALVE (76;124;166;198) WHICH IS OPENABLE TO ALLOW AIR TO BE BLED INTO THE SUCTION PASSAGE VIA THE BLEED AIR INLET. THE CLEANER HEAD FURTHER COMPRISES A FORCE-TRANSMITTING MEMBER (68 122; 152; 194;232) CONNECTED TO, OR ADAPTED TO BE CONNECTED TO, A HANDLE (18;48) BY MEANS OF WHICH THE CLEANER HEAD IS, IN USE, MANEUVERED ACROSS THE FLOOR SURFACE, AND THE FORCE-TRANSMITTING MEMBER (68;122;152;194;232) IS CONNECTED TO THE HOUSING BY A CONNECTION ALLOWING RELATIVE MOVEMENT BETWEEN THE FORCE-TRANSMITTING MEMBER AND THE HOUSING.
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