Patent ID: 6880200

Claim:
A suction device of a vacuum cleaner, comprising: a suction device body having an upper casing member and a lower casing member disposed oppositely to, and coupled with, the upper casing member; a rotary brush chamber having a suction port formed therein; and a turbine chamber partitioned off from the rotary brush chamber by a partition and interconnected with the rotary brush chamber through a passage formed in the partition; a rotary brush rotatably supported in the rotary brush chamber; a turbine rotatably supported in the turbine chamber and rotated by an air current drawn into the vacuum cleaner, the turbine driving the rotary brush; a portion defining a service hole formed in the lower casing member of the suction device body, for partially exposing the turbine, the service hole being interconnected with an air passage; a service hole cover having a pair of passage walls, defining a narrow air passageway, said service hole cover being removably mounted on the service hole; and locking means for removably supporting the service hole cover.