| 摘要 |
PROBLEM TO BE SOLVED: To provide an ink sheet feeding mechanism capable of easily removing and attaching an ink ribbon and acquiring a good quality of printing. SOLUTION: A bobbin 1, a joint member 2 which is fitted to the bobbin 1 and transmits rotation by being integrated with the bobbin 1, a holder 3 holding the tip part of the energized bobbin 1 and rotating by being integrated with the joint member 2, a torque limiter 5 fitting a projecting part of the other end side of the holder 3 into its recessed part and connected with the holder 3 to generate a torque, and a shaft 9 whose central shaft becomes a rotational central shaft of the members 2, 3 and 5 are installed coaxially. In addition, a structure in which the shaft 9 is not fixed on a frame 13 is employed. Tapered shapes which becomes guides of the bobbin 1 when the bobbin 1 is attached and removed are provided on the joint member 2 and the holder 3. The joint member 2 is fitted to the bobbin 1 synchronously with opening and closing of a door, or operation for releasing is performed. COPYRIGHT: (C)2008,JPO&INPIT
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