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Curve Graphing and Measuring Tools

A technology of curves and tools, applied in the field of teaching drawing tools, can solve the problem of no tools for drawing curves, and achieve the effect of simple structure, convenient operation, and enhanced perceptual cognition.

Inactive Publication Date: 2018-08-10
满洪流 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The curve drawing and measuring tool of the present invention can draw parabolas, hyperbolas, ellipses, circles and other curves conveniently and quickly, solves the problem that middle school students and teachers have no tools for drawing curves, and can also measure the length and arc of curves It has the functions of traditional protractor and ruler, and can draw any geometric figure

Method used

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  • Curve Graphing and Measuring Tools
  • Curve Graphing and Measuring Tools
  • Curve Graphing and Measuring Tools

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] figure 1 It is the state of drawing; when drawing, determine the position of the center hole 2 of the circle in the circle 1; according to the needs of drawing, fix the fixed point 3 at the top of the curve, fix the fixed point 4 at the left end of the curve, and fix the fixed point at the right end of the curve 5. Fix the left auxiliary fixed point 6, fix the right auxiliary fixed point 7, and fix five points in total; when fixing the above five points, adjust the top fixed slide bar 13 in the top fixed slideway 8, which is embedded in the fixed slideway 8. It is very convenient to slide out of this circle, but it will be stuck and fixed when sliding to the outside of this circle. You need to pinch the upper end point 22 of the sliding rod with your hands to adjust the length of the fixed sliding rod 13. Similarly, adjust and fix it on the left fixed slideway 9. Slide bar 14, adjust fixed slide bar 15 in right fixed slideway 10, adjust fixed slide bar 16 in left auxili...

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Abstract

A curve drawing and measurement tool are provided. On the bases of the basic principle of the parabolic five-point drawing method, elasticity of a stainless steel scale (18) made of a strip-shaped ultra-thin stainless steel sheet is used to make the stainless steel scale (18) smoothly bend to be a desired parabolic shape and then to draw a parabolic pattern along the outside of the stainless steel scale (18). With this tool, a parabola, a hyperbola, an ellipse, a circle, and other curves can be drawn quickly and easily, and the length of the curve can be measured. The tool also has traditional functions of a protractor and a ruler, and can be used to draw any geometry.

Description

technical field [0001] The invention relates to a teaching drawing tool, especially a curve drawing and measuring tool. Background technique [0002] Compasses can easily draw circles, but parabolas, hyperbolas, and ellipses cannot be drawn. Mathematics courses in junior and senior high schools involve a large number of drawing problems on parabolas, hyperbolas, ellipses, and other curves, but there is currently no tool in the domestic and foreign markets that can Draw these shapes quickly and easily. Students and teachers had to draw these curves freehand, which was neither pretty nor accurate. Existing individual curve drawing invention tools are also mainly based on the definition of curves, and are drawn with tight thin lines, which is both inconvenient and inconvenient to operate. [0003] The length of a straight line can be measured with a straight scale, but there has never been a measuring tool for the length of a curve. Whenever students ask about the length of a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B43L11/04B43L11/00B43L9/00B43L13/00
CPCB43L9/007B43L11/00B43L11/04B43L13/001
Inventor 满洪流万华
Owner 满洪流
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