| 摘要 |
A jig device for accurately measuring an opening when installing shelving, windowsills, molding, and similar construction material is provided. The jig device comprises a first elongated bar and a second elongated bar. First incremental measurements are marked on the first elongated bar with the first incremental markings reading right to left. Second incremental measurements are marked on the second elongated bar with the second incremental markings reading left to right. A first fastening mechanism slidably connects the first elongated bar to the second elongated bar and is tightenable to inhibit movement between the first elongated bar and the second elongated bar. A first angle paddle and a second angle paddle are provided. A second fastening mechanism slidably and rotatably connects the first angle paddle to the first elongated bar and is tightenable to inhibit movement between the first angle paddle and the first elongated bar and a third fastening mechanism slidably and rotatably connects the second angle paddle to the second elongated bar and is tightenable to inhibit movement between the second angle paddle and the second elongated bar. Upon positioning the jig device within an opening with the second sides of the angle paddles rotated and moved along the second and third fastening means and positioned on the outside of the opening, the alignment of a common number on the first incremental measurements and the second incremental measurements indicates a center point for the opening. |
