Multifunctional mathmatical ruler

A multi-functional and mathematical technology, applied to rulers, rulers, printing and other directions for direct reading, can solve the problems of only direct reading angle, single function of ruler, and only direct reading length

Inactive Publication Date: 2008-02-27
YANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the rulers commonly used by people include a triangle ruler, a ruler and a protractor. As we all know, each ruler has a single function, or can only directly read the length, or can only directly read the an

Method used

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  • Multifunctional mathmatical ruler

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Embodiment Construction

[0008] As shown in Figure 1, the present invention is made up of main ruler 1, protractor 2, ruler 3,4 and chi card 5.

[0009] The main ruler 1, the rulers 3 and 4 are respectively provided with equal division scale lines from 0 to 100, and their equal division scale lines are the same. The protractor 2 is provided with a circle center and equiangular scale lines from 0° to 180°.

[0010] Offer a straight chute 6 on the main ruler 1, this chute 6 is parallel with the length direction of main ruler 1.

[0011] The protractor 2 is fixedly connected to the front end of the main ruler 1, the protractor 2 and the main ruler 1 are on the same plane, and the center of the protractor 2 coincides with the 0 position of the main ruler 1, and the 0 position of the main ruler 1 can also be passed The pin shaft is hingedly connected to the ruler 3. On the chute 6 of main ruler 1, another ruler 4 is connected by pin 7. Set ruler card 5 in ruler 4 outer coverings.

[0012] In addition t...

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PUM

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Abstract

The invention relates to a multi-function math ruler, which is the structure technology of math ruler. 0-100 equal-division calibration lines are set on the main straight ruler. A protractor is fixed on the front end of main straight ruler. The protractor and the main straight ruler are in the same plane. The protractor has circle center and 0degree-180degree calibration lines with equal angles. The circle center is coincided with the zero position of main straight ruler. A straight ruler is hinged at the zero position of main straight ruler. Calibration lines, which are the same with equal-division calibration lines of main straight ruler, are set on the straight ruler. A straight sliding groove is opened on the main straight ruler. The sliding groove is parallel with the main straight ruler in the length direction. Another straight ruler is connected on the sliding groove by pin. On the straight line calibration lines, which are the same with calibration lines of main straight ruler, are set. Except for straight ruler, triangle ruler and protractor, the invention can measure angle, draw lines with arbitrary angle, parallel lines and vertical lines so on, directly read triangle function and directly solve relating problem of Pythagorean Theorem.

Description

technical field [0001] The invention relates to a structure technology of a mathematical ruler. Background technique [0002] At present, the rulers commonly used by people include a triangle ruler, a ruler and a protractor. As everyone knows, each ruler has a single function, or can only directly read the length, or can only directly read the angle. In particular, trigonometric functions are a very headache in the era without computers, and they can only be looked up in tables; the general Pythagorean theorem involves square root calculations, which are even more troublesome. Contents of the invention [0003] The purpose of the invention is to design a multifunctional mathematical ruler, which can not only directly read the length and angle, but also directly read trigonometric functions and directly solve the relevant problems of the Pythagorean Theorem. [0004] The invention comprises a main ruler, on which an equal division scale line of 0 to 100 is set, and a protr...

Claims

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Application Information

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IPC IPC(8): B43L13/00B43L7/10G01B3/04
Inventor 于习法
Owner YANGZHOU UNIV
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