| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a drawing folder that can easily fold drawings of sizes A0-A3 into size A4 by an extremely simple structure. <P>SOLUTION: With respect to the drawings drawn on paper, column A, of the international standard, the drawing folder is to fold a drawing larger than size A4 into size A4, having a tabular base part of size A4 predetermined as the reference side to be the reference when a long side of a drawing is folded and a groove part grooved all over the total length of the base part parallel to the reference side of at least one face top of the base part. The groove part is grooved along the distance of 170 mm from the reference side. It is preferable that the plate thickness of the base part, the depth of the groove part, and the width of the groove are 1.5 mm, 0.8 mm, and 2.5 mm respectively. In addition, it could be preferable to chamfer the sidewall on the reference side of the groove part. <P>COPYRIGHT: (C)2013,JPO&INPIT |
