| 摘要 |
A tape transport apparatus comprising a drive pulley, a driven pulley, a belt of an elastic material passing about the drive and driven pulleys, a supply and a takeup roll of pliable tape both urged against the belt at substantially diametrically opposite sides of the driven pulley. When the belt runs, a tensioned portion and a slackened portion are formed in the belt at the opposite sides of the pulleys. The slackened and tensioned portions are in frictional contact with the supply and takeup rolls, respectively, to rotate them so that the tape is withdrawn from the supply roll and wound onto the takeup roll. The tensioned belt portion has a smaller cross-sectional area than the slackened belt portion so that the former portion runs at a higher speed than the latter. The speed difference causes the tape to be wound on the takeup roll at a higher speed than where it is withdrawn from the supply roll until the tape becomes properly tensioned between the supply and takeup rolls.
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