KR20040052876A - Drawing protractor - Google Patents

Drawing protractor Download PDF


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KR20040052876A KR1020040033255A KR20040033255A KR20040052876A KR 20040052876 A KR20040052876 A KR 20040052876A KR 1020040033255 A KR1020040033255 A KR 1020040033255A KR 20040033255 A KR20040033255 A KR 20040033255A KR 20040052876 A KR20040052876 A KR 20040052876A
South Korea
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Korean (ko)
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Priority to KR1020040033255A priority Critical patent/KR20040052876A/en
Publication of KR20040052876A publication Critical patent/KR20040052876A/en
Priority to KR1020040084135A priority patent/KR100618031B1/en



    • B43L13/00Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
    • B43L13/02Draughting machines or drawing devices for keeping parallelism
    • B43L13/08Protractor heads
    • B43L9/00Circular curve-drawing or like instruments
    • B43L9/007Circular curve-drawing or like instruments with perforated or marked rulers


PURPOSE: A drawing protractor is provided to integrate various tools so as to be used in overall diagram studying classes. CONSTITUTION: The drawing protractor has a reference ruler. The reference ruler is attached bellow the protractor and is pivoted on the center of the protractor. The reference ruler is scaled and has a lot of holes at regular intervals. Drawing a line, protracting angle, drawing various types of figures, etc. are possible.


도형각도기{omitted}Shape protractor {omitted}

수학도형시간에 각도기 컴파스 자를 사용하여 도형을 그릴수 있었다 세가지를 준비하는 불편함을 하나로 줄이고 작도를 쉽게 측정할 수 있고 도형의 작도 횟수를 줄이고 정확하게 빨리하며 노리적 사고가 길러지는 학습자료이다.It is possible to draw a shape using a protractor compass rule in mathematical figure time. It is a learning material that can reduce the inconvenience of preparing three things, measure the drawing easily, reduce the number of drawing of the figure, quickly and accurately, and develop logical thinking.

종래의 각도기는 각도기의 누금보다 길이가 길거나 짧은 선분을 가진 각을 측정할땐 어려움이 있고Conventional protractors have difficulty in measuring angles with line lengths that are longer or shorter than those of protractors.

1,두변의 길이와 한각을 알 때, 삼각형 그리기를 하려면 길이를 재는 자와 각을재는 자와 각을 재는 각도기를 사용 하여야 하는 번거로움이 있음1, When you know the length and angle of both sides, to draw a triangle, you need to use the length ruler, the angle ruler, and the angle protractor.

2,세변의 길이를 알 때, 삼각형 그리기는 길이를 재는 자와 컴파스로 cm를 재어 꼭지점을 만들어야 하는 번거로움이 있음2, knowing the length of the three sides, drawing a triangle is a hassle to create a vertex by measuring the length with a compass and cm

3,한변의 길이와 양끝각의 크기를 알 때, 삼각형 그리기, 길이를 재는 자와 양각을 재는각도기 꼭지점을 만들 컴퍼스 사용의 번거로움이 있음3, When you know the length of one side and the size of both ends, it is troublesome to draw a triangle, measure the length, and use the compass to make the angled vertex

4,단위별로 원을 그릴때 자와 컴파스를 사용하는 번거로움4, Hassle to use ruler and compass when drawing circle by unit

초등수학 도형 시간에 여러 도구를 활용 하던 것을 하나로 합치면서 선분그리기, 각도재기, 각그리기, 부채꼴그리기, 정육각형 그리기, 길이를 알 때 삼각형그리기, 한변의 길이와 양끝각의 크기를 알 때, 평행선, 수선, 수선긋기, 원그리기, 여러 가지 도형그리기, 등분할하기, 등을 하며 평면도형 학습 전체에 사용 할 수 있다.Elementary Mathematics Shape Drawing, angle drawing, angle drawing, fan drawing, regular hexagon drawing, triangle drawing if you know the length, triangle line when you know the length of one side, parallel line, It can be used for the whole plan-type learning, such as repair, line drawing, circle drawing, various figure drawing, and equal division.

a하단자 b기지선 c각도기 d기준자 e기준선 f연필구멍 g고무점a Lower terminal b Baseline c Protractor d Reference ruler e Reference line f Pencil hole g Rubber point

h중심점h center point

*각도기는 속을 비웠다.* The protractor was hollowed out.

ⓐ각도기 하단에 자를 덧대어 선분을 그을수 있다Ⓐ You can draw a line by attaching a ruler to the bottom of the protractor

ⓑ기저선Ⓑ baseline

ⓒ각도기를 반원(원)으로 (180도)를 나타내어 각을 읽을수 있다.Ⓒ You can read the angle by indicating the angle (180 degrees) as a half circle (circle).

ⓓ기준자는 각도기 아래면에서 회전될수 있게 한다.Ⓓ The reference can be rotated on the underside of the protractor.

ⓔ기준선은 기준자의 중심선으로 눈금을 읽을때 쓴다.Ⓔ The reference line is used to read the scale as the center line of the standard.

ⓕ연필구멍을 5미리미터 간격으로 구멍을내어 각도를그을때 사용한다.Ⓕ Use the pencil hole to cut the angle by 5mm intervals.

ⓖ고무점은 각도기가 움직이지 않게 고정하여 준다.ⒼThe rubber point is fixed so that the protractor does not move.

ⓗ중심점은 기준자가 움직이게 하여주고 중심점이 되게 한다.Ⓗ the center point makes the reference point move and becomes the center point.

선분긋기: 하단자는 초등수학 도형수업중 모든 선분을 활용 그을 수 있고 잴 수 있다.Line Segmentation: The lower end can draw and measure all line segments in the elementary mathematics class.

각재기: 기준점을 각도기0도에 위치 기준자를 한선분에 맞추고 기준자를 움직여 나머지 선분에 기준선을 맞추어 각을읽는다.Stitching: Align the reference point with the protractor at 0 degrees and align the reference point with one line and move the reference point to align the reference line with the rest of the line.

각그리기:하단자를이용 선분을그린다 기지선에 선분을 맞추고 원하는 각까지 기준자를돌려 연필구멍에 한점을찍고 하단자를이용 기준점과 미리찍어 놓은 점을 연결하여 각이완성Draw an angle: Draw a line segment using the lower end line Align the line segment to the base line, turn the ruler to the desired angle, draw a point in the pencil hole, and connect the lower point to the use base point and the pre-set point.

부채꼴 그리기(반지름3쎈티미터,중심각60도) : 하단자로 3쎈티미터 반지름을 그린다. 중심점에 기준자의 중심점을맞추어 기준자를돌려 기준선으로 60도 각을 맞추어 연필구멍에 점을찍고 반원을그린다.하단자를 움직여 선을그어 완성.Draw a fan shape (3 쎈 radius, 60 degrees center): Draw 3 미터 radius as the lower part. Align the center point of the reference point with the center point, turn the reference point, draw a dot in the pencil hole and draw a semicircle at an angle of 60 degrees with the reference line. Move the lower end to draw a line.

정육각형그리기: 하단자로 중심선을 긋고 중심점에 기준자를움직여 각도기에 60도 마다 연필구멍에 꼬지점위치표시 도형각도기를 돌려 나머지 반을 표시 하단자로 꼭지점 이어 완성.Regular hexagon drawing: Draw the center line with the lower end, move the reference point to the center point, and mark the position of the corner point in the pencil hole every 60 degrees in the protractor.

이등변삼각형 그리기: 하단자로 삼각형 한선분을 그린다. 원하는 등변의 길이에 따라 기준자의 연필 구멍으로 원호를 그려 꼭지점 위치 표시 하단자로 꼬지점 이어 완성.Draw an isosceles triangle: Draw a triangle with the lower end. Draw an arc with the pencil hole of the ruler along the length of the equilateral equivalence and complete the vertex with the vertex position marker bottom.

두변의 길이와 한각을 알 때 삼각형 그리기(6쎈티,5쎈티,70도):하단자로 6쎈티 한변의 길이를 재어 그린다 기준자를 돌려 기준선에 각도기의 70도를 맞추고 연필구멍의 5쎈티 해당점에 위치 표시한다 하단자로 꼭지점을 이어 완성Draw the triangle when you know the length and angle of both sides (6 centimeters, 5 centimeters, 70 degrees): Draw the length of one side of 6 centimeters with the bottom terminal. Turn the reference ruler to align the 70 degrees of the protractor with the reference line, Mark position and complete vertex with lower end

세변의 길이를 알 때 삼각형 그리기(각 4쎈티,5쎈티,6쎈티): 하단자로 가장긴 6쎈티를 그린다 기지선에 일치시키고 한편의 중심선에 기준자의 연필구멍의 5쎈티에 연필을 꽂고 돌려 호를 그린다, 기준자의 연필구멍의 4쎈티에 연필을 꽂고 호를그린다, 두호가 만나는 점까지 하단자로 선분을 이어 완성.Draw a triangle when you know the length of three sides (4, 5, 6). Draw the longest 6 centimeters as the bottom line. Match the base line and insert a pencil at 5 centimeters of the pencil hole of the standard line on one side and rotate the arc. Draw a pencil in the 4 에 of the standard pencil hole and draw an arc.

한변의 길이와 양끝각의 크기를 알 때 삼각형그리기(30도,60도,4쎈티): 하단자를이용 4쎈티선분을 그린다 한편의 중심선에서 기준자를 돌려 기준선으로 각도기에 30도를 재고, 다른한편의 중심선에서 60도를 재어 연필구멍에 연필로 점을찍는다, 30도와 60도에 맞는 선분을 그려 만나는 점을 찾아 연결 완성Draw a triangle when you know the length of one side and the size of both ends (30 degrees, 60 degrees, 4 centimeters): Draw a 4 centimeter line using the lower end ruler. Measure 60 degrees from the centerline of the pencil and draw a dot with a pencil in the pencil hole.

평행선,수선, 수직선 긋기: 하단자로 한선분을 긋는다, 기지선을 맞추고 각 연필구멍에 2에서3개 정도의 점을 찍고 연결 해준다,Parallel, repair, and vertical lines: Draw a line with the lower end, align the base line, and attach two to three dots to each pencil hole.

원그리기: 기준자의 연필구멍에 연필을 꽂아 돌려 반원을 그리고 뒤집어 나머지를 그린다.Circle: Draw a semicircle by turning the pencil into the pencil hole of the ruler and flip it over to draw the rest.

여러 가지 도형그리기: 기지선을 중심으로 각 크기마다 기준자의 연필구멍에 연필로 꼭지점 위치표시 각도기와 기준자를 돌려 나머지 반을표시, 하단자로 꼭지점 이어 완성.Drawing various shapes: Mark the vertex position with a pencil in the pencil hole of the ruler for each size centered on the base line, and turn the protractor and the ruler to display the other half, followed by the vertex with the bottom.

등분할하기:하단자로 임의의 선을 긋는다, 등분할을 할 수대로 360도를 나누어 점을찍는다 기지선에 임의의 선을 맞춘다 기준자를 움직여 각도기에 등분할을 할 각도를 등분 할 수대로 똑같이 나누어 표시한다Dividing an arbitrary line with the lower terminal, dividing the point by 360 degrees as the equal division can be made.Take an arbitrary line with the base line.Move the standard to divide the angle to equally divide the protractor. Display

하단자로 연결하여 완성.Connected to the lower end to complete.

각도기 읽기, 각그리기, 삼각형그리기, 정다각형그리기, 합도도형그리기, 닮은꼴그리기, 평행선, 수선, 수직선, 그리기등 도형 공부가 쉽고 재미있게 학습능율을 높일수 있다.Reading protractors, drawing angles, drawing triangles, drawing regular polygons, drawing congruent shapes, drawing similar shapes, parallel lines, repairs, vertical lines, drawing, etc., makes learning the shapes easier and more fun.

Claims (1)

하단자를 10쎈티미터, 20쎈티미터, 30쎈티미터 등 단계별로 제작 다양화 할 수 있다.The lower part can be made and diversified in stages such as 10 쎈, 20 쎈, 30 쎈. 하단자를 얇게 하여 원으로(360도) 제작가능.It can be manufactured in a circle (360 degrees) by thinning the lower end.
KR1020040033255A 2004-05-11 2004-05-11 Drawing protractor KR20040052876A (en)

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Application Number Priority Date Filing Date Title
KR1020040033255A KR20040052876A (en) 2004-05-11 2004-05-11 Drawing protractor
KR1020040084135A KR100618031B1 (en) 2004-05-11 2004-10-20 multi-functional drafting device

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KR1020040084135A KR100618031B1 (en) 2004-05-11 2004-10-20 multi-functional drafting device

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9772172B2 (en) * 2012-01-19 2017-09-26 Koala Tools, Llc Scalable rules capable of creating size-adjustable circles, arcs, and curved shapes
KR200460773Y1 (en) * 2012-04-05 2012-06-12 임유비 An Educational Digital Compass
KR101702467B1 (en) 2015-08-07 2017-02-06 김영진 A multifunctional drafting machine
CN106379084A (en) * 2016-09-14 2017-02-08 中国地质大学(武汉) Multifunctional integrated ruler
KR101997591B1 (en) * 2017-06-09 2019-07-08 김종덕 foldable ruler

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KR20050108310A (en) 2005-11-16
KR100618031B1 (en) 2006-08-30

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