| 摘要 |
PROBLEM TO BE SOLVED: To provide a press ruling member that can form a rule capable of folding a cardboard sheet with high accuracy.SOLUTION: One end of a metallic strip-shaped plate 11 is made a ruling part 12, and a rib-forming recess is formed in the length direction of the ruling part 12. The rib-forming recess comprises: a straight groove 13 formed in the central part of the width direction between both side edges of the ruling part 12; a first inclined groove 14 plurally provided at intervals in the length direction of the ruling part 12 between the central part of the width direction of the ruling part 12 and one side edge; and a second inclined groove 15 plurally provided at intervals in the length direction of the ruling part 12 between the central part of the width direction of the ruling part 12 and the other side edge. A linear rib 17 and inclined ribs 18a, 18b are formed in the groove bottom B of a rule L by the push-up of the ruling part 12 to the cardboard sheet A. |
