| 摘要 |
PURPOSE:To apply back tension onto an ink sheet through a simple structure by arranging a means for applying load onto a supply roll shaft on the outer circumferential section thereof. CONSTITUTION:Bearings 21, 22 for holding a roll shaft 16 rotatably are arranged on upper and lower cases 17, 18, where the bearings 21, 22 are splitted into two semi-circular sections such that a gap is provided between them when the roll shaft 16 is born. When a cassette stopper 8 pushes the upper case 17, the roll shaft 16 is pressure held between the bearings 21, 22 thus applying back tension onto the ink sheet 1 when it is wound. Furthermore, friction pads 23, 24 are applied onto the inner faces of the bearings 21, 22 contacting with the outer circumferential section of the roll shaft 16 in order to apply larger rotary load onto the roll shaft 16. |
