JPS6372093U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 shows a ruler that can be used to draw straight dotted lines, which was designed so that two types of lines, 2 and 3, can be drawn using the dotted line groove made in the shape of a ruler. The line is A, and the line drawn in the groove 3 is B. Fig. 2 is a drawing showing a longitudinal cross-sectional view of Fig. 1, and 4 is the part corresponding to the interval forming the shape of the dotted line constituting the groove, and Fig. 3 is a drawing in which a line longer than the dotted line can be drawn. FIG. 4 is a cross-sectional view of the groove in which the distance between the grooves is maintained and the position of the blocking portion is lengthened, and FIG. 4 is an enlarged cross-sectional view of the groove. Figure 5 is a triangular ruler with a protractor that can be used to draw broken lines with angles.Put a small hole at the top of the main angle to specify the angle, mark the dots with a pencil, etc., and draw the dotted line to the required angle. This is a drawing of a shape that can be matched.

Claims (1)

[Scope of Claim for Utility Model Registration] (a) A ruler or ruler used for drafting that is used for straight lines should have a groove near the scale on one side with gaps for drawing broken lines. (b) Create a groove on the opposite side with an interval where a dash-dotted line or cutting line can be drawn. (c) A dashed-dotted line is placed on the right-angled side opposite the base of the triangular ruler, as shown in Figure 4. (d) As shown in Figure 4, the surface of the ruler should have a protractor-like scale on which the angle can be read, and small holes should be made at key angles. (e) The ruler shown in item 1 (a) shown in Figure 1 can also be used to draw imaginary lines such as the center line, and it is also possible to make a ruler with several lines of broken lines. (f) In addition to the above, it is also possible to add a groove parallel to the edge of a cloud-shaped ruler to draw a dash-dot line, or to provide an intermittent groove parallel to the edge of a drafting ruler to draw a dash-dot line, imaginary line, or center line. A ruler designed to allow you to draw dotted lines easily and accurately.