| 摘要 |
PURPOSE:To make the titled device in small-size and to prevent the manual operation of counter due to malfunction by banding plural parallel rotary shafts and counting the number of times of recording by the movement of a mark displayed on the band advancing in accordance with the rotation of a rod. CONSTITUTION:A through rod 10 is inserted into a hole 9 of a cassette 4 incorporating a recording medium 5, a slide bearing part 6, four rotary shafts 7, a counter band 8 to prevent slide between the rod 10 and the band 8. When the rod 10 is rotated at the recording to the recording medium 5, the band 8 also advances at the same phase and the number of times of recording can be detected by reading out the moving amount of the sheet number display on the band 8. Since it is unnecessary to prepare an independent space for the counter, the whole length of the cassette can be shortened. In addition, manual revolution of the counter due to malfunction can be prevented at the discharge of the cassette from the device because the band 8 and the rotary shafts 7 are completely incorporated in the cassette. |
