Angle ruler
A straightedge, zero-angle technology, applied in the direction of straightedge, printing, writing utensils, etc., can solve the problem that the straightedge cannot be accurately grasped, and achieve the effect of simple structure, strong practicability, and easy portability.
Inactive Publication Date: 2014-06-18
李辉
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Problems solved by technology
[0003] In order to overcome the deficiency that the existing straightedge cannot accurately grasp the angle between the drawn straight line and the straight line, the present invention provides a straightedge, which can not only draw a straight line with a fixed length, but also accurately grasp the angle between the drawn line and the straight line. the angle between the drawn line and the line
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[0009] exist figure 1 In , a set of length scale values (1), a set of angle scale values (2).
[0010] exist figure 2 , a set of length scale values (1), a set of angle scale values (2), and two drawn lines with angles (3).
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The invention provides a super simple and practical angle ruler, and relates to a ruler drawing device, in particular to a ruler allowing a user to conveniently and accurately control the angle between the drawn straight lines and the length of the straight lines. The angle ruler is formed by marking a ruler surface with at least one angle scale value sets and at least one length scale value sets. The angle ruler has the advantages of being super simple in structure, high in practicability, convenient to carry and capable of allowing the user to conveniently and accurately control the angle between the drawn straight lines and the length of the straight lines.
Description
technical field [0001] The invention relates to a ruler drawing device, in particular to a ruler capable of conveniently and accurately grasping the angle and length between drawn straight lines and straight lines. Background technique [0002] At present, the known ruler structure is that the length scale value is made on the scale surface. When in use, a person can conveniently draw a straight line with a required length by using a ruler. However, in many drawings, there is an angle between the intersecting straight line and the straight line, and this ruler cannot accurately grasp the angle between the drawn straight line and the straight line, thus causing difficulties in drawing for the plotter. Contents of the invention [0003] In order to overcome the deficiency that the existing straightedge cannot accurately grasp the angle between the drawn straight line and the straight line, the present invention provides a straightedge, which can not only draw a straight lin...
Claims
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IPC IPC(8): B43L7/00
Inventor 李辉
Owner 李辉
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