Method of and apparatus for removing a film layer on a glass plate and glass-plate working apparatus having the apparatus

An apparatus for removing a film layer on a glass plate, comprising:

• at least first and second removing means for removing a film layer on a glass plate;
• and
• transporting means for transporting the glass plate,
• said first and second removing means respectively having grinding wheels for grinding and removing the film layer on the glass plate, an X-direction moving device for moving the grinding wheels in an X direction, and a Y-direction moving device for moving the grinding wheels in a Y direction,
• said respective grinding wheels of said first and second removing means being arranged on both sides of a path through which the glass plate is transported by said transporting means,
• said grinding wheel of said first removing means being adapted to be moved in X and Y directions by said X-direction moving device and said Y-direction moving device of said first removing means so as to grind and remove the film layer on the glass plate in a first region on the side of said grinding wheel of said first removing means with respect to said path,
• said grinding wheel of said second removing means being adapted to be moved in X and Y directions by said X-direction moving device and said Y-direction moving device of said second removing means independently from the moving of said grinding wheel of said first removing means so as to grind and remove the film layer on the glass plate in a second region which is different from said first region and which is on the side of said grinding wheel of said second removing means with respect to said path, concurrently with the grinding and removing of the film layer by said grinding wheel of said first removing means in said first region.