Lever action manually operated shearing cutter, has double link mechanism to transmit force to blades

摘要

The manually operated shearing cutter has a pair of cutter blades (3) that are coupled by a link (5). These are pivot mounted (14) onto the heads (13) of the hand levers (9). The heads are coupled by links (21), and there are cam slots (18) with followers (19) fixed to the heads. The lines of force action are such that high force is applied to the cutting blades.