| 摘要 |
PURPOSE: An adjustable scale is provided to allow a worker to easily and precisely determine a position of a fastener when performing a fastener layout work and to improve efficiency of the fastener layout work. CONSTITUTION: An adjustable scale(100) includes a scale body(10), a detail and a bolt(30) for fixing the detail. The scale body(10) is a kind of a scale formed with a notch mark lengthwise thereof. A perforation slot(11) having a predetermined width is formed along a length of the scale body(10). The width of the perforation slot(11) is identical to or larger than an outer diameter of the bolt(30). The detail surrounds a predetermined portion of the scale body(10). An inner diameter of the scale body(10) is identical to or larger than a width of the scale body(10). At least one perforation hole corresponding to the perforation slot(11) is formed in the detail.
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