| 摘要 |
PROBLEM TO BE SOLVED: To provide a bobbin which can be separated readily from a used roll ink film. SOLUTION: The bobbin 10a for winding an ink film 17 in a roll shape comprises a tubular core member 11 of a spring material, and a pair of conical jigs 12 and 12 fitted in the opposite end parts of the core member 11. When the pair of conical jigs 12 and 12 are fitted in the core member 11, an outside diameter of the core member 11 is enlarged thus securing the core member 11 and the conical jigs 12 and 12. After the ink film 17 is used, the pair of conical jigs 12 and 12 are drawn out from the core member 11. Since the outside diameter of the core member 11 is reduced, the core member 11 can be separated from the roll shape ink film 17. COPYRIGHT: (C)2004,JPO
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