| 摘要 |
The invented figure coordinate marking apparatus is comprised of a body (1) being provided on opposite sides with horizontal shafts that are perpendicular to the body (1) running direction and supporting rotating rollers (13) and serving for motion of the body in running direction, further an input device (12) that is used to enter calculation commands for calculating specific coordinate positions of the figure. The figure coordinate marking apparatus also comprises a measuring lever (2) supported at a fulcrum (14) on main body (1) so as to be turnable right and left relative to the running direction of main body (1) and comprising a marker (25) a tracing portion (21) intended for tracing the figure position and having a tracing point (211), a first wheel (22) for fine movement of the measuring lever (2) in the running direction of main body (1), a second wheel (23) for fine movement of the measuring lever (2) in the turning direction of measuring lever (2). Both the first wheel (22) and the second wheel (23) are held by an elastic distance ring on a rear side of measuring lever (2) to maintain a small distance above a sheet of paper on which a figure is being drawn. The boy is also provided with a display device (11) for indication of a difference of a current position of the marker (25) from the specific coordinate position of the figure. |
