Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Curve drawing and measuring tool

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

Inactive Publication Date: 2017-05-31
满洪流 +1
View PDF12 Cites 8 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Curve drawing and measuring tool
  • Curve drawing and measuring tool
  • Curve drawing and measuring tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] specific implementation plan

[0016] 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 to the outside of the circle, but it will be stuck and fixed when sliding to the outside of the circle. You need to pinch the upper end point 22 of the slide bar with your hands to adjust the length of the fixed slide bar 13. Similarly, in the middle of the left fixed slideway 9 Adjust the fixed slide bar 14, adjust the fixed slide bar 15 in t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a teaching drawing tool, and particularly relates to a curve drawing and measuring tool. By adoption of the tool, parabolas, hyperbolic curves, ellipses, circles and other curves can be conveniently and fast drawn, the length of the curves can be measured, a vacancy in the field of teaching tools is filled, and the problem that junior-senior high school students and teachers have no tools to draw the curves is solved. According to the technical scheme, based on the basic principle of a five-point parabola drawing method, a strip-shaped ultrathin stainless steel sheet is made into an elastic stainless steel dividing ruler, and the stainless steel dividing ruler is smoothly bent into a required parabola shape, and then the pattern of the parabola is drawn along the outer side of the stainless steel dividing ruler. The technical scheme can also be used for drawing the hyperbolic curves, ellipses, circles and other curves. Since the two sides of the stainless steel dividing ruler have scales, the length of a drawn curve can be directly read. The tool further has the functions of a traditional protractor and straightedge, and can be used for drawing any geometric figures. The drawing tool is absent in current domestic and overseas markets, and is wide in market prospect.

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B43L11/04B43L11/00B43L9/00B43L13/00
CPCB43L9/007B43L11/00B43L11/04B43L13/001
Inventor 满洪流万华
Owner 满洪流
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com