| 摘要 |
PURPOSE:To make it possible to economically carry out multi-folding by enabling the coupling and installation of a plurality of multi-stage abutting blades to be simple and as well by securely ensuring the removal and installation of the blades so that the stability is secured. CONSTITUTION:Abutting blades 3, 3', 3'' of different lengths in a linear arrangement are equal-spacedly installed in parallel between the blocks of paper holding rollers 2 in a machine body. Each coupling member 6, 6' of inverse L shape or the other suitable shape is fixedly installed in the position corresponding to an L shape rear frame plate 4, 4'' of the next adjacent blade in the bottom surfaces of both side frame parts 5, 5' of each blade 3, 3', 3''. Further, only by securing, with screws, each coupling member 6 to the corresponding rear frame plate 4, 4' of the next adjacent blade 3', 3'', the rear end parts of the next adjacent blades 3', 3'' of different lengths are simply and surely coupled, sequentially below the first stage blade 3. |
