| 摘要 |
<P>PROBLEM TO BE SOLVED: To inhibit occurrence of wrinkle-like floating when feeding sheet material. Ž<P>SOLUTION: A roll feeder 40 feeding metallic coil material C wound in a roll shape is equipped with floating mechanisms 46, 56 which engage with roll bodies 45, 55 in rotation directions of the roll bodies 45, 55 catching the coil material C to transmit rotary drive force of a stepping motor 59 to the roll bodies 45, 55 and are ball-spline-fitted in axial directions to allow slide of the roll bodies 45, 55. With this, the coil material C, when being guided, can slide in the axial directions together with the roll bodies 45, 55 so that distortion between portions guided and those caught by the roll bodies 45, 55 can be reduced. Occurrence of wrinkle-like floating when feeding the coil material C can be therefore inhibited. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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