| 摘要 |
PROBLEM TO BE SOLVED: To provide a bending structure where a part of a blank made of a plastic sheet is bent and fixed to another blank made of another plastic sheet.SOLUTION: In the folding structure of a plastic sheet, a pressing ruled line for bending formed on a blank consists of grooves formed on an opposite surface to a fulcrum position when bending. The cross-sectional shape of the grooves is a shape that a plurality of groove parts are continued with no clearance and a center groove part is shaped to be deeper than groove parts at both left and right sides. |
