Suction device for powered apparatus
To avoid sandwiching of a sucked object in a gap between an inner wall of a fan case and a fan of a hand-held suction apparatus, an entering regulation part is positioned to extend into the air intake opening to return sucked objects back into the air intake opening and prevent sandwiching in the gap.
1. A suction device for a powered vacuum apparatus, said suction device comprising:
a fan case which includes a front wall, a rear wall, an air inlet duct which merges with the front wall and provides an air inlet opening into the fan case, said air inlet opening defining a central axis, and an outlet duct,
a fan which is mounted within said fan case to be rotatable about said central axis to suck an air stream into said fan case through said air inlet duct and direct said air stream towards said outlet duct, said fan including blades which define an annular gap with said front wall adjacent said inlet duct, and
a generally rectangular regulator element which is attached by bolts to the front wall of said fan case so as to be positioned in and partially fill the annular gap between the front wall and the fan blades, said regulator element defining a longitudinal axis that extends towards said central axis and away from said rear wall of said fan case along a plane that intersects the central axis at an angle relative to a plane that is perpendicular to the central axis, said regulator element including a free end which extends into said air inlet duct to redirect objects away from said annular gap, said free end including a straight portion that is sloped relative to sides of the regulator element.
2. The suction device according to claim 1 , wherein said fan includes a crushing device which is rotatable with said blades.