| 摘要 |
PROBLEM TO BE SOLVED: To provide a reverse winding preventing tool for a food packaging wrap roll capable of preventing reverse winding into a case for a standard food packaging wrap roll and dropping off thereof to outside of the case.SOLUTION: There is provided a reverse winding preventing tool for a food packaging wrap roll in which: it is supposed to have a cylindrical shape to tightly encompass a wrap roll from outside; one optional part of cylinder wall surface is separated in longitudinal direction vertical to cylinder port; and although each of both separated sides opposing each other is mutually folded to opposite direction with about 2 centimeters width, one of them is folded to cylinder inside 1 to form a film pressing folding piece 3 and the other one them is folded to cylinder outside 2 to form a case wall surface pressing folding piece 4. Both of these two folding pieces are formed to maintain their configuration at about 45 degree of angle. Cylinder diameter in which a part of wall surface is separated is elastically expanded/contracted if being subjected to external force, and if the external force is cancelled, it returns to its original diameter by itself in a shape memory manner.SELECTED DRAWING: Figure 2 |
