HIGH PRECISION POSITIONING RULER WITH AN INDICATION PEN

摘要

A high precision positioning ruler with an indication pen includes a ruler body having a longitudinal penetrating hole; a scale for indication of lengths being formed on a surface of the ruler body; a positioning unit being slidable along the longitudinal penetrating hole for being positioned to a point of the scale; the positioning unit having an pen for drawing points or lines to indicate lengths to be measured; a leveler and a verticality mater being installed on the ruler body for controlling the ruler to be positioned horizontally or vertically. In use of the ruler, the ruler resisted against a measuring surface; for horizontal measurement, the user views the leveler to control the horizontalness of the ruler; then the positioning unit being moved along the longitudinal penetrating hole to a desired length and then the pen is used to indicate the point.

主权项

1. A high precision positioning ruler with an indication pen, comprising:
a ruler body having an oblong shape; the ruler body having a longitudinal penetrating hole along a length wise direction of the ruler body; a scale for indication of lengths being formed on a surface of the ruler body and near one end of the longitudinal penetrating hole for determination of a length; a positioning unit being slidable along the longitudinal penetrating hole for being positioned to a point of the scale; the positioning unit having an pen for drawing points or lines to indicate lengths to be measured; a leveler being installed on the ruler body; the leveler serving for controlling the ruler to be positioned horizontally; wherein in use of the ruler, the ruler resisted against a measuring surface; for horizontal measurement, the user views the leveler to control the horizontalness of the ruler; then the positioning unit being moved along the longitudinal penetrating hole to a desired length and then the pen is used to indicate the point.