| 摘要 |
<p>PURPOSE:To convey and punch a sheet to form filing holes by providing a driving device driving both endless belts from the state that edge bodies and edge body receiving holes are located at preset reference positions in response to the detection signal of a detecting means. CONSTITUTION:The first endless belt A stretched drivably by a pair of rollers and the second endless belt B stretched drivably by another pair of rollers are arranged so that the conveyance direction of a sheet 3 and the driving direction both endless belts A, B coincide when the sheet 3 is guided between both endless belts A, B, and multiple punching edge bodies 4 protruded from the surface of the first endless belt A are arranged in the conveyance direction of the sheet 3. Edge body receiving holes 5 are arranged at the positions of the second endless belt B corresponding to the edge bodies 4, when the sheet 3 reaches the preset position immediately before both endless belts A, B, it is detected by a detecting means S. Both endless belts A, B are driven by the detection signal.</p> |
