| 摘要 |
<p>A tape guide (17) includes a guide member (21) of a cylindrical configuration to guide a tape, an ultrasonic vibrator (24) secured to the guide member (21) to vibrate the guide member (21) in standingwaves configuration and a supporting member (19) to support the guide member (21). A rotation stop means (29, 32a) to prevent rotation of the guide member (21) is formed on one of a pair of tape position restricting members (12, 14) in the width direction of the tape, whereby the number of the assembly parts of the tape guide can be kept small and the mechanism thereof can be simple allowing the tape guide to be miniaturised. The structure and the shape of the ultrasonic vibrator (24) are selected so that, even when the tape guide is miniaturised, a coefficient of friction between the tape and the guide member (21) is an optimum value. <IMAGE></p> |
