| 摘要 |
PROBLEM TO BE SOLVED: To prevent a film from being exposed to cooling air for cooling a clip. SOLUTION: A clip 5 moving along each outward portion 11d, 12d of each rail 11, 12 is received in an outward chamber 45, and a clip 5 moving along each homeward portion 11e, 12e is received in a homeward chamber 46. The outward chamber 45 and the homeward chamber 46 are covered with a plurality of covers 61 mutually connected by a bellows 68. A chamber 58 having a slit-like nozzle 58a is provided within the homeward chamber 46, and the chamber 58 is mounted on a duct 54 so as to be substantially in a sealed state. Cooling air sent from a cold air device 57 enters the chamber 58 through an air supply opening 54b of the duct 54, and the cooling air is sprayed to a holding portion 31b and a base 32b of the clip 5 moving along the homeward portion 12e through the nozzle 58a. The cooling air sprayed through the nozzle 58a is discharged through an exhaust opening 54c formed in the duct 54. COPYRIGHT: (C)2011,JPO&INPIT |
