| 摘要 |
PURPOSE: To avoid obstructive vibration and shaking and to facilitate the anchoring and maintenance of a system and the introduction of a tube at the same time by supporting a reversely rotating member on a rotary track and making the inner diameter of the rotary track equal to at least the max. working width of an apparatus. CONSTITUTION: A tube 1 of a plastic film is supplied to an off-drawing apparatus entirely shown by a code 2 with an expanded round or circular cross section from an extruder. A lay-flat apparatus 26, a turenabout roller 30 and an overturning rod 32 are mutually arranged up and down so as to be revolved at a time of reversal and held on rotary tracks 11, 14 driectly supported each other through an intermediate roll members 15. The rotary tracks 11, 14 together constitute one rotary track assembly 10 receiving compression load supported around the axial line of the tube in a rotatable manner and the inner diameter of the rotary track assembly is equal to at least the max. working width of a forcible apparatus 2. |
