Multifunctional compasses

A multi-functional, compass technology, used in circular curve plotters, printing, writing utensils, etc., can solve the problems of large volume, labor-intensive, and inconvenient to carry.

Inactive Publication Date: 2012-05-02
赵义山
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In daily teaching and production, manual drawing of drawings requires the use of a variety of tools, such as protractors, compasses, rulers, right-angled triangles, etc., especially when teachers teach, they must use these tools to teach students to draw and bring all the drawing tools. Moreover, these drawing tools generally have a large volume, which makes it inconvenient to carry; schools or production units need to purchase multiple tools, which increases production costs
[0003] Among the existing drawing tools, compasses must be used to draw a circle. If a circle with a certain angle needs to be drawn, the existing compasses must cooperate with a ruler and a protractor to complete the work, which is a waste of time and manpower
[0004] In existing production and daily teaching, there is a need for a convenient and practical drawing tool that can complete the drawing work that the above-mentioned multiple tools can complete, but there is no report in the prior art

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
  • Multifunctional compasses
  • Multifunctional compasses
  • Multifunctional compasses

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Such as figure 1 , 2 As shown, a multifunctional compass includes two compass feet 1 and 2 provided with length scales and a countersunk locking device 3; the compass foot 1 is a concave sinker, and the compass foot 2 is a convex inlay, Connected by the countersunk locking device 3, a circular needle fixing sleeve 5 and a circular needle 6 are arranged on the compass foot 1, and a drawing pen fixing sleeve 7, a drawing pen clip 8 and a drawing pen 9 are arranged on the compass foot 2, The drawing pen clip 8 is used to clamp the drawing pen 9, and the drawing pen clip 8 can also be used to extend the service length of the drawing pen 9, for example, when the drawing pen is a pencil lead or chalk, it is installed on the drawing pen through the drawing pen clip 8 On the fixed cover 7, open the clip of the drawing pen clip 8 to adjust the length that the drawing pen 9 protrudes, so that even if the drawing pen 9 is short, it will not be wasted; There are angle scales, and...

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 multifunctional compasses, which comprise two compasses legs (1) and (2) and a countersunk locking device (3). Length graduations are arranged on the compasses legs (1) and (2), the compasses leg (1) is a concave sunk groove, the compasses leg (2) is a convex insert, and the compasses leg (1) is connected with the compasses leg (2) by the countersunk locking device (3). Angular graduations are arranged at one of connecting ends of the two compasses legs while a pointer (4) is disposed at the other connecting end. The multifunctional compasses have multiple functions and are convenient and practical, and time and labor are saved.

Description

technical field [0001] The invention relates to a compass, in particular to a multifunctional compass. Background technique [0002] In daily teaching and production, manual drawing of drawings requires the use of a variety of tools, such as protractors, compasses, rulers, right-angled triangles, etc., especially when teachers teach, they must use these tools to teach students to draw and bring all the drawing tools. Moreover, these drawing tools generally have a large volume, which makes it inconvenient to carry; schools or production units need to purchase multiple tools, which increases production costs. [0003] Among the existing drawing tools, compasses must be used to draw a circle. If a circle with a certain angle needs to be drawn, the existing compasses must cooperate with a ruler and a protractor to complete the work, which is a waste of time and manpower. [0004] In existing production and daily teaching, a convenient and practical drawing tool is needed, which...

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
IPC IPC(8): B43L9/02
Inventor 赵义山
Owner 赵义山
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap