| 摘要 |
<p>PURPOSE:To drive and run a magnetic tape securely by providing an energizing member which energizes a head substrate toward a substrate, a projection part which projects toward the substrate, and a deformed hole in the substrate. CONSTITUTION:When the head substrate 58 is at a back position, the projection part 78a of a leaf spring 78 falls and the energizing force which energizes the head substrate 58 toward an upper substrate 57 decreases. When the head substrate 58 is at a front position, the projetion part 78a of the leaf spring 78 does not fall and the energizing force which energizes the head susbstrate 58 toward the upper substrate 57 is increased; and the deformed hole 57c is formed in the upper substrate 57 so that the energizing force does not vary even if the head substrate 58 rotates to left and right at the front position. Consequently, the constitution of a center capstan system using one flywheel is facilitated and the head substrate 58 where heads 60 and 61 for forward rotation and backward rotation is composed of one substrate and the energizing member which energizes the head substrate 58 toward the upper substrate 57 is composed of one member, thereby simplifying the constitution of the device and reducing its size. Further, the magnetic tape 56 is driven and run securely.</p> |
