| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a device for orderly winding the magnetic tape of a tape cassette which decreases mechanical noises of the reduction gear mechanism section of a vertical moving mechanism for moving a touch roller to the upper part of a tape traveling system. SOLUTION: Compression coil springs 114A, 114B are respectively provided on both sides of a worm gear 115 of the vertical moving mechanism 110, i.e., a revolving shaft 114 between a bearing 119 and a worm gear 115 and a revolving shaft 114 between the stop washer of a second connecting member 113 and the worm gear 115, thereby, the control in the movement of the worm gear 115 is made free. Grease having viscosity is packed in the clearance between the outer peripheral surface of the revolving shaft 114 and the inner peripheral surface of the worm gear 115. Thereby, the generation of the mechanical noises between the worm gear 115 which is the reduction gear mechanism of the vertical moving mechanism 110 and the worm wheel 120 is surely prevented.</p> |
