초록 ▼

An abrading tool including a body to be held by a user and carrying a motor which moves a unit relative to the body to abrade a work surface by the action of a sheet of sandpaper or other work abrading element carried by the unit, with the unit containing a passage or passages through which a flow o

An abrading tool including a body to be held by a user and carrying a motor which moves a unit relative to the body to abrade a work surface by the action of a sheet of sandpaper or other work abrading element carried by the unit, with the unit containing a passage or passages through which a flow of air and entrained particles abraded from the work surface are drawn by suction, and with the unit carrying a flow control valve which is movable with the unit relative to the body of the tool by the motor and is operable to variably restrict the flow of air and particles by suction through the passage or passages in the unit. The movable unit may include a resiliently deformable cushion through which abrading force is applied to the sandpaper or other abrading element and a backing plate structure more rigid than the cushion and containing a chamber into which air and particles flow from passages in the cushion, with the flow control valve being carried by an upper wall of the backing plate structure.

대표청구항 ▼

An abrading tool comprising: a body to be held by a user; a unit mounted to said body for movement relative thereto and adapted to carry a work abrading element; a motor carried by said body and operable to move said unit relative to the body to abrade a work surface; said unit containing a passage

An abrading tool comprising: a body to be held by a user; a unit mounted to said body for movement relative thereto and adapted to carry a work abrading element; a motor carried by said body and operable to move said unit relative to the body to abrade a work surface; said unit containing a passage or passages through which a flow of air and entrained particles abraded from the work surface are drawn by suction; and a flow control valve carried by said unit and movable with said unit and a carried abrading element relative to said body by said motor; said valve being operable to vary the effective size of an opening through which said air and entrained particles are drawn by suction, to thereby variably restrict the flow of air and particles through said opening and through said passage or passages in said unit.