| 摘要 |
PROBLEM TO BE SOLVED: To provide the device capable of preventing interference of a cut-out member to fall with frog pins during working. SOLUTION: In the case where, on a display screen S, a plate material 1 is displayed overlapped with plural frog pins 2 arranged in the lower part of the plate, with a work 20, 21 for edge preparation and with an open window 20a, 21a for the edge preparation, and where the open window for the edge preparation, a cut-out member to be dropped down, interferes with the pins 2, such interfering open window 21a is displayed in a specific color, with its arranged position made correctible so that the open window 21a may not interfere with the pins 2. |
