| 摘要 |
PURPOSE:To restrict the levitation of a wind-up hub, by providing a levitation preventing flange to the wind-up mounting boss on a wind-up lever. CONSTITUTION:A wind-up hub 25 is attached to the wind-up lever 22, which is freely rotated on a lower case around the boss 28 for the wind-up lever provided on the lower case, in a freely rotatable manner. Ribbon feed teeth 24 are contacted with the wind-up hub 25 under pressure by a wind-up lever spring 21. A levitation preventing flange 22b is provided to the boss 22a for attaching the wind-up hub 25 on the wind-up lever 22 in the pressure contact direction of the ribbon feed teeth 24. The inner diameter of the wind-up hub 25 is large enough to be capable of being mounted to the boss 22a. Therefore, the wind-up hub 25 is prescribed upwardly at the pressure contact position with the ribbon feed teeth 4 by the levitation preventing flange 22b. |
