Mould plate capable of drawing multiple function curve

A technology of curves and templates, which is applied in the field of templates that can draw various function curves, and can solve problems such as drawing inconvenience

Inactive Publication Date: 2005-01-05
曹凯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a template capable of drawing various function curves, in which a variety of curve die holes are designed to solve the current problem that multiple templates are needed to draw various curves; for some functions that can be drawn with the template Curves, the positioning of the coordina...

Method used

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  • Mould plate capable of drawing multiple function curve
  • Mould plate capable of drawing multiple function curve
  • Mould plate capable of drawing multiple function curve

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Embodiment Construction

[0013] Referring to the accompanying drawings, a template that can draw various function curves is made of transparent materials, including three parts: a semicircle, a scale, and a curved die hole. One end is a semicircle with a semicircle scale; the other three parts of the template are Each side has a scale accurate to millimeters, which acts as a square. There is a central axis marked in the middle of the template, which is not only the 90-degree line of the semicircle, but also can be used as the symmetry axis of some function curves that can be drawn with the die hole. When designing the die hole, the edge line of the die hole has the same shape as the following function, but the border of the die hole is 0.3-0.6mm larger than the actual curve, so that the curve drawn with the die hole is the same as the following function. In the following equations, the power function has the same unit length as the hyperbola, parabola, and ellipse, and the sine function has the same u...

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Abstract

A model plate able to be used to draw multiple functional curves has a semi-circule rule at its one end, three scaled rules at its three straight edges, and multiple model holes for drawing different functional curves, such as circle, ellips, parabola, hyperbola, etc.

Description

Technical field: [0001] The invention relates to a curve template, in particular to a template capable of drawing various function curves. Background technique: [0002] The current curve templates mainly include circular templates, parabolic templates, hyperbolic templates, elliptical templates, and simple combined graphic templates, which provide certain convenience for professional manual drawing. However, in the existing curve templates, the types of curves that can be drawn by a single template are relatively small. On the other hand, the curve template generally only marks the position of the symmetry axis for the parabola, hyperbola, and ellipse that can be drawn. Since the focus, directrix, and asymptote of the hyperbola and the position of the coordinate axis are not marked, so in It will be inconvenient when using existing curve templates for function learning and problem solving. Invention content: [0003] Technical problem to be solved: [0004] The present...

Claims

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Application Information

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IPC IPC(8): B43L13/20
Inventor 曹凯
Owner 曹凯
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