Patent ID: 9676579
Date: 2017-06-13
CPC Classifications: B65G,B65H,C03B

Claim:
1. A manufacturing method for a glass roll, the method comprising: drawing a glass film downward vertically from a forming device; converting a delivery direction along a longitudinal direction of the glass film from a vertical direction to a horizontal direction; continuously delivering the glass film to a downstream side using a horizontal conveyance section extending in the horizontal direction and including a support section, a drive speed of the support section being set substantially equal to a forming rate of the glass film by the forming device; and rolling the glass film into a roll shape on a downstream side of the horizontal conveyance section, so as to impart a horizontally-directed linear tensile force along the longitudinal direction of the glass film to a region of the glass film interposed on the downstream side of the horizontal conveyance section during said rolling the glass film by imparting a rolling force to the glass film while the glass film is supported in surface contact with the support section of the horizontal conveyance section, the rolling force being equal to or less than a static friction force which is generated by a self-weight of the glass film between the glass film and the support section, wherein the horizontal conveyance section comprises a support sheet serving as the support section, the support sheet being fed from a support sheet roll and driven by a drive section in contact with the support sheet, and wherein, after a state of contact between the support sheet and the glass film is released, the drive of the support sheet by the drive section is released, the support sheet moves to a retreating position that is spaced apart from the drive section, and the support sheet is discarded without re-contacting the glass film.