| 摘要 |
<p>The assembly includes a cutting board, a rail assembly pivotally mounted on the cutting board for movement between operative and inoperative positions, and a carriage assembly mounted on the rail assembly for movement across the cutting board. A circular cutting blade is mounted in the carriage assembly which is biased to an inoperative position on the rail assembly. A self-healing pad is mounted on the cutting board in the path of travel of the cutting blade whereby the carriage assembly is pushed downward on the rail assembly to move the cutting blade to an operative position with respect to the self-healing pad for trimming or cutting the paper sheets.</p> |
