Multipurpose compass ruler and drawing method thereof

A multi-purpose compass technology, applied in the field of stationery, can solve the problems of poor circle drawing accuracy, poor safety of compasses rulers, and irregular arcs, etc., and achieve the effects of high drawing precision, improved safety, and easy portability

Inactive Publication Date: 2019-06-18
朱元铭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the safety of the compass ruler with this structure is poor, and in the process of drawing a circle, the pen holder is prone to slipping, and the drawn arc is not regular enough. arc

Method used

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  • Multipurpose compass ruler and drawing method thereof
  • Multipurpose compass ruler and drawing method thereof
  • Multipurpose compass ruler and drawing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] according to Figure 1 ~ Figure 3 As shown, a multi-purpose compass ruler includes: a guide rail body 1, a center shaft 2, a large arc marking block 3, a small arc marking block 4, a large circular rack 5 and a small circular rack 6.

[0031] The inner side of the guide rail scale body 1 is provided with a disc groove 11 and a slide rail 12, and the center shaft 2 is rotationally connected with the guide rail scale body 1 through the disc groove 11. Two rows of scale bars 13 are arranged on the upper surface of the guide rail scale body 1, which are respectively large circles Scale bar and small circle scale bar, guide rail scale body 1 top is provided with slider groove 14, and guide rail scale body 1 bottom is provided with marking groove 15; On both sides of the center of the circle shaft 2, the large circular rack 5 and the small circular rack 6 are arranged oppositely, and are slid and fixed in the guide rail scale body 1 by the slide rail 12, and the scale bar 13 ...

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PUM

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Abstract

The invention relates to the field of stationeries, in particular to a multipurpose compass ruler and a drawing method thereof. The multipurpose compass ruler comprises a guide rail ruler body, a circle-center rotary shaft, a great-circle-arc ruling block, a small-circle-arc ruling block, a great-circle rack and a small-circle rack, wherein a circular disc groove and a slide rail are arranged on the inner side of the guide rail ruler body; the circle-center rotary shaft is rotatably connected with the guide rail ruler body through the circular disc groove; two lines of graduated bars are arranged on the upper surface of the guide rail ruler body; the great-circle-arc ruling block and the small-circle-arc ruling block are arranged on two sides of the circle-center rotary shaft; the great-circle rack and the small-circle rack are arranged in the opposite direction; the slide rail is slidably fixed into the guide rail ruler body; and the graduated bars are arranged on the side of the great-circle-arc ruling block.

Description

technical field [0001] The invention relates to the field of stationery, in particular to a multipurpose compass ruler and a drawing method thereof. Background technique [0002] Compasses and rulers are commonly used drawing tools. However, the needle angle of traditional compasses is dangerous, and during the drawing process of traditional compasses, the two feet of compasses are easy to loosen, which affects the accuracy of arc drawing. In addition, compass and straightedge It is very inconvenient to carry the ruler together. The utility model patent with the patent number of 201020612621.2 discloses a compass ruler. The compass position point is set at one end of the ruler body, and the ruler body is provided with an elongated groove in which the compass moving unit can slide. , the compass mobile unit is an opening block that can be fixedly matched with the line-drawing device, so that when the ruler main body rotates around the circle's fixed point, the compass mobile...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L9/02B43L9/24B43L9/16
Inventor 朱元铭
Owner 朱元铭
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