| 摘要 |
PROBLEM TO BE SOLVED: To easily switch over a plurality of film rolls for use by a simple structure and to reliably hold a film tip of each film roll. SOLUTION: A body frame 1 is formed with a lead 14 from which films 4b and 10b unrolled from the film rolls are guided. The body frame 1 is equipped with one-directional clutch rollers 21 and 22 on the lead 14. They are rotatable only in the direction of drawing out the film and designed to individually guide the films 4b and 10b when unrolled from the respective film rolls, and also to prevent the films from returning when not in use for anchoring them to the lead 14.
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