Patent ID: 8561571

Claim:
An apparatus for applying a coating solution onto an upper surface of a rectangular glass plate that is transported on a transporting roll in a horizontal direction at a constant speed, the apparatus comprising: a plurality of nozzles for supplying the coating solution which are disposed with a predetermined pitch in a width direction of the glass plate perpendicular to a direction of transporting the glass plate; a coating solution tank connected to each of the nozzles through a tube; an electromagnetic valve disposed between each of the nozzles and the tube, the electromagnetic valve being operative to start and stop supply of the coating solution, each of the nozzles having a needle portion on a tip end portion thereof from which the coating solution is ejected, the needle portions being arranged in a vertical direction perpendicular to the upper surface of the glass plate; and a leveling means for leveling strip-shaped coating portions provided on the upper surface of the glass plate that reduces a rotating speed of the transporting roll after the strip-shaped coating portions are provided in parallel to each other at intervals substantially ranging from a/4 to a/30 wherein “a” is a width of each of the strip-shaped coating portions immediately after application of the coating solution onto the upper surface of the glass plate between the leading edge of the glass plate and the rear edge thereof by ejecting the coating solution from the needle portions to thereby spread areas of the strip-shaped coating portions until a clearance between the strip-shaped coating portions adjacent to each other is eliminated and form a coat having a uniform thickness on the upper surface of the glass plate.