它被描述为折叠式穿孔器。 上部（1）和下部（4）分别由两个横档（2,3）和（5,6）构成。 横梁2,3的端部铰接在由臂11构成的横梁5,6的端部（转动轴12,13）上。 枕木（2,3）和（5,6）彼此可折叠地连接。 在一个位置（图1-4）中，下部（4）的上部（1）和（5,6）的横档（2,3）彼此平行。 这是折叠的位置。 在另一个位置，横档（2,3）和（5,6）相对于彼此展开。 在这种情况下，旋转轴线（12,13）对齐。 穿孔器展开; 那么它就处于操作位置。

There is disclosed a folding perforator. The upper part (1) and the lower part (4) each consist of two webs (2, 3) and (5, 6). The ends of the rails (2, 3) are hinged to the ends of the rails (5, 6) (axes of rotation 12, 13) constituted by the arm (11). The crossbeams (2, 3) and (5, 6) are connected together foldably. In one position (Figure 1-4), the webs (2, 3) of the upper part (1) and (5, 6) of the lower part (4) are mutually parallel. This is the stowed position. In the other position, the webs (2, 3) and (5, 6) are unfolded with respect to each other. It is in this case that the rotational axes (12, 13) are aligned. The perforator unfolds; it is then in operational position.