| 摘要 |
PURPOSE:To use both a printing space and an entry (perforation) space, and to allow a perforated position within a wider range than an (input zone), by adopting a perforating method instead of an entry of a mark. CONSTITUTION:As for a means for 'perforating from the reverse side' again without being influenced by 'a hole which has been penetrated from the surface', there are three methods of (A) a position of the hole is shifted on the surface and the reverse side, (B) the hole shapes are crossed each other on the surface and the reverse side, and (C) the shape of the hole is made to have directivity. As for A, the space efficiency becomes bad to some extent, but (nevertheless 1.5 times can be obtained exactly), and as for B and C, a space effect (by the number of items) of about two times can be expected, depending on its design. The method for making hole shapes 10-12 cross each other on the surface and the reverse side can be performed comparatively easily, and a 'rectangle' being the simplest hole shape is used, and shifted by 90 deg. on the surface and the reverse side. As a matter of course, it occurs that the hole of the surface and the hole of the reverse side are superposed, and two holes and three holes are connected with each other, but it does not matter at all.
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