| 摘要 |
PROBLEM TO BE SOLVED: To provide a marking-off measurement device capable of performing accurate measurement and positioning by avoiding a welding bead, highly usable, having a size to be stored in the pocket of work clothes and conveniently carried.SOLUTION: Relief parts are provided at one, two or more corners of a square substrate. When one of two sides sandwiching the relief part is allocated to a marking-off member, and the other side is allocated to the other member orthogonal to the marking-off member, an inclined surface or a bent surface is formed with a size enough to avoid the welding bead of both members, a length scale and a length numerical value are displayed in both or one of the two sides sandwiching the relief part, the length scale and the length numerical value are a length scale and a length numerical value originating from the intersection point of a virtual line of extension of the two sides, respectively, and when the relief parts are formed at two or more corners of the square parts, the shapes or the sizes of the two or more relief parts are similar or different.SELECTED DRAWING: Figure 1 |
