| 摘要 |
PURPOSE:To improve the workability of mounting and dismantling of an ink sheet cassette by pivotally supporting a driving revolution body and a driven revolution body holding a roll shaft on the winding side from both sides slidably in the axial direction and mutually energizing these revolution bodies to the inside by a spring at both ends of the roll shaft on the winding side. CONSTITUTION:A pair of left and right pushing plates 30, 31 are pivotally supported rotatably to a bracket 28 protruded to the outside of an external left side plate 11c for a frame 11 and a bracket 29 protruded to the outside of a right side plate 11b by shafts 32, 33, and the pushing plates 30, 31 are each energized toward the inside by springs 34, 35. The left pushing plate 30 pushes a driving revolution body 21 toward the inside through a ball bearing 36 fitted at the rear end of a shaft section 21a for the revolution body 21, and the right pushing plate 31 pushes a driven revolution body 22 toward the inside through a ball bearing 37. The driving revolution body and the driven revolution body can be isolated or joined simultaneously from a roll shaft on the winding side, thus simply mounting or dismantling an ink sheet cassette. |
