| 摘要 |
PURPOSE:To set arbitrarily longitudinal stretch ratio, the proportion of longitudinal stretch ratio and traverse stretch ratio by fixing the film gripping position by laying the ratio regulating device that can control an interval between guide rails to a guide rail controlling the pitch of an endless chain link. CONSTITUTION:The width regulating device 7 for regulating interval L is laid at one end of guide rails 2a, 2b and at one end of guide rails 3a, 3b and the pitch of a pantograph type endless chain link 8 passes the sprocket 9, enters the pitch-regulating range B, changes the pitch of the endless chain like at a film-gripping position (a) and is regulated to the specified lengthwise stretch ratio. |
