Patent ID: 7644597

Claim:
An apparatus for producing a plate glass, comprising: a bath for float-forming for reserving a molten metal for forming a band-shaped plate glass having a predetermined thickness by feeding a molten glass ribbon in a predetermined direction on the molten metal; and a partition wall provided substantially above each of left and right edges of the molten glass ribbon and substantially along the edges to partition a space above a bath surface of the molten metal into an upper space above a region covered with the molten glass ribbon and upper spaces above regions not covered with the molten glass ribbon, wherein each of the partition walls is vertically divided into an upper partition wall and a lower partition wall, wherein among the upper partition wall and the lower partition wall, at least the lower partition wall is constituted by strip-shaped lower strip members provided continuously to each other in a lateral direction, and wherein the strip members in at least a region are configured to be removed or opened from the upper partition wall.