| 摘要 |
<p>The invention relates to a folding rule (1), comprising at least three links (1.1, 1.2, 1.3) that are pivotably fastened to each other. According to the invention, at least one of the links (1.1, 1.2, 1.3) has a scale (SD) for measuring the diameter of objects (O), which scale is designed in such a way that, when the object (O) is completely enclosed by three adjacent links (1.1, 1.2, 1.3), wherein insides (IS) of the three links (1.1, 1.2, 1.3) are each in contact with the object (O), a specified region (B) of one of the links (1.1, 1.2, 1.3) is in contact with the scale (SD) and a respective contact point on the scale (SD) indicates the diameter (D) of the object (O).</p> |
