| 摘要 |
<p>The scissors are provided with replaceable thin insert blades (3,4). The blade insert carriers (1,2) of the scissors are recessed to receive the blade inserts (3,4) fixed in place by a screw (5,6). The edge-to-edge force at the cutting point is controlled by the bend and the twist of the blade insert carriers (1,2). The fixation of the blade inserts (3,4) by the screw (5,6) in the front half of the blade insert carriers (1,2) and their twist in the back section, leaves the cutting edge (10,11) of the blade inserts (3,4) unsupported near the pivot point of the scissors. Torsion of the blade inserts (3,4) allows for easier control of the edge-to-edge force near the pivot without a penalty of the high edge-to-edge compliance towards the tips. Use of replaceable blade inserts (3,4) eliminates the need for resharpening of the cutting edge (10,11) and allows for use of the special purpose blade inserts (3,4) with the same basic scissors. <IMAGE></p> |
