RULED LINE FORMING BLADE FOR PLASTIC SHEET

摘要

PROBLEM TO BE SOLVED: To provide a ruled line forming blade 1, capable of easily setting a ruled line, which enables a bent part to be finished at a specified angle and hardly makes an adjacent planar part to the bent part curved and further, shows smooth bending performance, ensuring the stable and rapid manufacture of boxes using an automatic box making machine.;SOLUTION: This ruled line forming blade 1 has a serrated edge 2 which is intermittent in the longitudinal direction. In addition, the blade 1 has 0-3 mm length A of the apex face part 3 of the edge 2, 0.3-3 mm length B of the slant part 4 of the edge 2, 0.02-0.5 mm distance C between the apex face part 3 and the deepest part of the slant part 4, 0-0.5 mm width D of the apex face part 3 and 20-130° angle θ of the edge 2.;COPYRIGHT: (C)2000,JPO