Suction cleaning tool with outflow ramp for maintaining high suction power has turbine chamber base forming ramp in suction outflow area rising towards outflow aperture to keep suction airflow trouble free

摘要

A casing (4) has brush (5) and turbine (6) chambers. The brush chamber has a brush roller (11) whose bristles protrude through a suction slit (9). The turbine chamber has an air turbine (15) for turning the brush roller's driving mechanism. A driving suction airflow enters the turbine chamber via an inflow aperture (14) and flows out via an outflow aperture (24).