| 摘要 |
PURPOSE:To simplify the configuration for running a transcription belt askew previously in a belt drive device of such a type as capable of sensing and correcting eventual skewing automatically. CONSTITUTION:A transcription belt 4 is set over No.1-No.3 rollers 1, 2, 3 in such a way as capable of running. The two ends of No.1 and No.2 roller 1, 2 are supported by a pair of supporting plates 5, while the two ends of the No.3 roller 3 are supported by a tension plate 7 which is installed outside of these plates 5 and arranged slidably relative to them. Between each supporting plates 5 and the tension plate 7, a spring S1, S1 is set, which should exert an energization force, and thereby a tension is given to the transcription belt 4 and also it is run askew previously. |
