| 摘要 |
Cutter for material in strip form preferably of paper having a hollow supporting body (20), a blade holder head (12), a shaft (18) equipped with a piston (24) running in the cavity (21) of the supporting body and connected to the blade holder head (12) by an elastically deformable arm (16), a system for controlled rotation of the blade holder head, a system for mounting the blade holder head (12) on the shaft (18) and a case (60) for covering and protection of the blade (14) in the operational phase or the rest phase and fixed to the stem of a piston (62) sliding in a chamber (64) in the bottom of the blade holder head (12).
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