Ruler possessing multiplication and division function

A technology of division and function, applied in the field of multi-functional ruler, can solve problems such as unfavorable reading and learning, troubles, etc.

Inactive Publication Date: 2006-08-30
尹良俊
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is often necessary to prepare a table of multiplication formulas separately for supplementary learning, and it is particul

Method used

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  • Ruler possessing multiplication and division function
  • Ruler possessing multiplication and division function
  • Ruler possessing multiplication and division function

Examples

Experimental program
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Embodiment Construction

[0032] Below in conjunction with specific embodiment and accompanying drawing thereof, the concrete structure of the present invention is described in further detail:

[0033] First, according to the attached Figure 1 ~ Figure 4 , detailed as follows:

[0034] On the upper side of the Y side of the scale body, there is a cutting hole 1; on both sides of the cutting hole 1, there are through holes 2, 2a; on the upper side of the cutting hole 1, a protruding outer barrel body 3 is connected; The connection between the upper side of the opening 1 and the outer barrel body 3, such as image 3 As shown, the connection was fixed by high-frequency melting.

[0035] The inner side of the outer barrel body 3 is inserted into a rotatable inner barrel body 4; the multiplication method M is formed on the outer barrel body 3 and the inner barrel body 4 (refer to the attached figure 1 , 2 and attached Figure 5 ) and division operation method D. In addition, the outer barrel body 3 i...

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PUM

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Abstract

The invention relates to a multifunctional ruler with multiplication and division functions, wherein one side of ruler is protrude with external barrel; the inner side of external barrel is inserted with rotational internal barrel; the external and internal barrels and the ruler are arranged with number and display windows used in multiplication and division calculations. The invention has the advantages that: it can avoid wetting the scale lines; the ink will not contact the hand; and the invention can avoid bending and damaged, to improve its service life. And the invention can be used in anywhere to improve the learning efficiency, while the horizontal displacement of ruler Y can be measured to check the result. And it can be used to measure angle and divide angle, and draw round.

Description

technical field [0001] The invention relates to a multifunctional ruler with multiplication and division functions. In detail: that is, while using the ruler, the learning efficiency of multiplication and division can be improved; moreover, it is extremely convenient to use through the handle function of the ruler. Background technique [0002] Commonly used rulers can only be marked by a pen tool or used as a place to measure length. [0003] Moreover, when using an ordinary ruler to draw a line with a pen, a signature pen or a ballpoint pen, etc., and then retrieve the ruler from the line, if you do not pay attention a little, the drawn line will be blurred by ink, resulting in blurring. Clumsy lines, so very inconvenient. Moreover, since the common ruler does not have the function of strengthening its material, there is a problem that it is easy to be bent and broken. [0004] In addition, for students in the lower grades of elementary school, they are still in the sta...

Claims

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Application Information

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IPC IPC(8): B43L7/00B43L13/20
CPCB43L7/04B43L13/08B43L13/205G01B3/12G09B19/02
Inventor 尹良俊
Owner 尹良俊
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