Patent ID: 7524138

Claim:
A floor surface finishing device comprising: a plane leveling machine including a plurality of rotary blades operable to rotate in a propeller manner by a driving force while maintaining contact with a floor surface to be finished; a planar finishing blade located at an outer periphery of an area of rotation of said rotary blades, at least a portion of said finishing blade being formed of a flexible elastic plate, said finishing blade being angled upwards toward a center axis of rotation of said rotary blades and operable to contact the floor surface to be finished after said rotary blades have contacted and passed over the floor surface to be finished, said finishing blade being connected to said plane leveling machine such that said finishing blade is operable to: move in directions toward and away from the floor surface to be finished; and swing around said rotary blades; a plumb bob for pressing said finishing blade against the floor surface to be finished; and a connecting member for connecting said finishing blade to said plane leveling machine, said connecting member including an elevating arm pivotally connected to said plane leveling machine so as to allow said finishing blade to move in a vertical direction and to swing around said rotary blades in a horizontal direction such that at least a part of said finishing blade contacts the floor surface to be finished after said rotary blades have contacted and passed over the floor surface to be finished.