Flat width reinforcement plate of flat file

摘要

Problem: in the conventional flat panel, when the content of the flat panel is increased or the edge edge of the back cover becomes soft and weak due to the multiple use, there is a problem that the edge of the back cover can be broken because it cannot withstand the concentrated load at the time of taking out.SolutionIn the present invention, the inner surface and the outer surface of the upper end edge of the back cover are sandwiched with a plate-like plate made of a soft material to increase the surface strength of the upper edge, and the strength of the upper edge of the back cover is also increased in the vicinity of the lateral transverse direction of the back cover (a, B surface), and the foot of the flat file (2). By attaching the article of the present invention to the portion, the edge edge portion of the flat file and the strength of the circumference are also increased easily.Diagram