Abstract: Provided is a glass ribbon manufacturing apparatus in which at least one of support rollers configured to support both sides of a glass ribbon (G) in a width direction in an annealing region and a cooling region is a shape stabilization roller configured to stabilize a shape of the glass ribbon (G) curved in the width direction. The shape stabilization roller includes a first roller (11) arranged on one surface side of the glass ribbon (G) and a second roller (12) arranged on another surface side of the glass ribbon (G). Inner end portions (11c) of rollers (11a) of the first roller (11) are all positioned on an outer side, in the width direction, of outer end portions (12c) of rollers (12a) of the corresponding second roller (12) in the width direction.

Abstract: Provided is a glass ribbon manufacturing apparatus in which at least one of support rollers configured to support both sides of a glass ribbon (G) in a width direction in an annealing region and a cooling region is a shape stabilization roller configured to stabilize a shape of the glass ribbon (G) curved in the width direction. The shape stabilization roller includes a first roller (11) arranged on one surface side of the glass ribbon (G) and a second roller (12) arranged on another surface side of the glass ribbon (G). Inner end portions (11c) of rollers (11a) of the first roller (11) are all positioned on an outer side, in the width direction, of outer end portions (12c) of rollers (12a) of the corresponding second roller (12) in the width direction.

Abstract: An apparatus for manufacturing a glass sheet has a pair of cooling rollers sandwich, from both front and back sides of a glass ribbon, each end portion of the glass ribbon in a width direction of the glass ribbon. The glass ribbon is produced by causing molten glass to flow down from a forming trough. A roller shaft of each of the pair of cooling rollers is arrayed so as to extend from a center side to each end side in the width direction of the glass ribbon. Each of the pair of cooling rollers catches the glass ribbon on an outer peripheral surface thereof, to thereby inhibit contraction in the width direction of the glass ribbon.

Abstract: Provided is an apparatus (1) for manufacturing a glass sheet, which has such a structure that a pair of cooling rollers (5) sandwich, from both front and back sides of a glass ribbon (G), each end portion (Ga) in a width direction of the glass ribbon (G) that is produced by causing molten glass (g) to flow down from a forming trough (3), and a roller shaft (5a) of each of the pair of cooling rollers (5) is arrayed so as to extend from a center side to each end side in the width direction of the glass ribbon (G), in which each of the pair of cooling rollers (5) catches the glass ribbon (G) on an outer peripheral surface thereof, to thereby inhibit contraction in the width direction of the glass ribbon (G).