| 摘要 |
PROBLEM TO BE SOLVED: To provide a web carrying direction change mechanism changing a carrying direction of a web with good responsiveness, in which a carrying distance of the web is short in change of the carrying direction. SOLUTION: The web carrying direction change mechanism 20 comprises: an upstream roller A; a downstream roller C; an intermediate roller B interposed between the roller A and the roller C and positioned above or below with respect to the roller A and the roller C; and a holding means 40 holding a distance between rotational shafts of rollers constant when each roller oscillates around each oscillation axis. The roller A has the oscillation axis (a) vertical to a carrying face of the web, and is supported to be capable of oscillating approximately in parallel with respect to the carrying face. The roller C has an oscillation axis (c) vertical to the carrying face of the web, and is supported to be capable of oscillating approximately in parallel with respect to the carrying face. The roller B has an oscillation axis (b) orthogonal to each oscillation axis a/c of the roller A and the roller C, and is supported to be capable of oscillating around the oscillation axis (b). COPYRIGHT: (C)2009,JPO&INPIT
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