Office paper punch machine - has punch cutters driven downwards by two levers in vertical plane of punch cutters and having central common pressure piece depressed by thumb

摘要

The paper punch has two punch cutters (3) vertically guided in a frame (1) and movable downwards against the pressure of springs (5). On pivots (6) at each end of the frame and in the same vertical plane as the punch cutters are two levers (2) which can be simultaneously depressed by thumb pressure on a central, common pressure piece (4) to drive the punch cutters through the paper sheet. At the pivot ends the frame (1b) has slots forming guides for the levers and limiting the lever stroke. USE/ADVANTAGE - Office paper punch is of compact dimensions. Simple, low-cost design.