Method and device for producing band-shaped glass film

A manufacturing apparatus for a band-shaped glass film, the manufacturing apparatus comprising:

• a direction-changing member configured to change a direction of a falling band-shaped glass film to a horizontal direction;
• and
• a horizontal-conveyance unit configured to convey the band-shaped glass film in the horizontal direction after the changing of the direction of the band-shaped glass film,
• wherein the direction-changing member is movable in the horizontal direction between a regular position for changing the band-shaped glass film in direction and a retreated position which is separated from the horizontal-conveyance unit farther than the regular position, and
• wherein, after a lower end of the band-shaped glass film passes through a position between the direction-changing member being at the retreated position and the horizontal-conveyance unit, the direction-changing member is moved from the retreated position toward the regular position to apply a pressing force to the band-shaped glass film, to thereby cut the band-shaped glass film along a width direction by bend-breaking,
• wherein the direction-changing member comprises a plurality of rollers and a scratching unit which are assembled to a casing,
• wherein the direction-changing member is movable between the regular position and the retreated position by movement of the casing,
• wherein the scratching unit is configured to scratch the band-shaped glass film for the bend-breaking, and
• wherein a speed of the direction-changing member given at a time of moving from the retreated position to the regular position is higher after the scratching unit scratches the band-shaped glass film than before the scratching unit scratches the band-shaped glass film.