Method for producing strip-shaped glass film

The position of a strip-shaped glass film (1) conveyed downwards in the longitudinal direction is detected by a detection part (21), and the conveying speeds of a plurality of conveying devices (10, 11, 12, 14) arranged on a transverse conveying path (R2) are respectively controlled on the basis of detection data of the detection part (21). Among the plurality of conveying devices (10, 11, 12, 14), the conveying device (10) located on the most upstream side is set as an upstream-side conveying device, conveying devices (11, 12, 14) located on the downstream side from the upstream-side conveying device (10) are set as downstream-side conveying devices, and an upper limit and a lower limit are set for the conveying speeds of the downstream-side conveying devices (11, 12, 14), respectively. 由检测部(21)检测向纵向下方输送的带状玻璃膜(1)的位置，基于检测部(21)的检测数据来分别控制设于横输送路径(R2)的多个输送装置(10、11、12、14)的输送速度。将多个输送装置(10、11、12、14)当中位于最上游侧的输送装置(10)设为上游侧输送装置，将比上游侧输送装置(10)更靠下游侧的输送装置(11、12、14)设为下游侧输送装置，对下游侧输送装置(11、12、14)的输送速度分别设定上限和下限。