Circular back butsuku die case

摘要

(57) Abstract Objective Without providing the separate core material to the box, the rear section of the coverCurve amount, in size of the case without being influenced simply productionIn addition, it to be possible, be able to configurate also degree of curve freely, at the same time costIt makes cheap ones. Constitution The surface 2a in the backwall 2c of the box 2 aperture longitudinalCrossing in direction, to provide the semicircle arc-shaped cutting into, depending on cutting intoBending the tongue piece which it occurs, by initializing, multiple riTo form bu 2f, between each rib 2f, the collapsing of rib 2f antiThe collapsing prevention rib 2g which stopping is done, crossing in rib, 2f it constructsru. In this box 2, lower board 2b underside and backwall 2c back of box 2To cover the surface and the surface 2a with cover 3, the back section cover of cover 33b is formed in a state curve.