Patent ID: 9550633
Date: 2017-01-24
CPC Classifications: B65G,H01L

Claim:
1. A levitation air plate comprising: a top plate in which a plurality of air ejection holes and suction holes penetrating from an upper surface to a lower surface thereof are arranged in alternating fashion as viewed from the upper surface; a seating face sheet having communicating holes communicated one-to-one with the air ejection holes and the suction holes of the top plate, and penetrating from an upper surface to a lower surface thereof, and whose diameters are larger than diameters of the air ejection holes and suction holes; an orifice sheet having a plurality of first orifices penetrating from an upper surface to a lower surface thereof in positions corresponding to the communicating holes of the seating face sheet communicated with the air ejection holes of the top plate, and having a plurality of second orifices penetrating from the upper surface to the lower surface thereof in positions corresponding to the communicating holes of the seating face sheet communicated with the suction holes of the top plate; a bottom side plate having an air supply route and an air supply hole for supplying air to all of the first orifices drilled in the orifice sheet, and having an air suction route and a suction hole for suctioning air from all of the second orifices drilled in the orifice sheet.