JPH08122003A - Protractor - Google Patents
ProtractorInfo
- Publication number
- JPH08122003A JPH08122003A JP28439294A JP28439294A JPH08122003A JP H08122003 A JPH08122003 A JP H08122003A JP 28439294 A JP28439294 A JP 28439294A JP 28439294 A JP28439294 A JP 28439294A JP H08122003 A JPH08122003 A JP H08122003A
- Authority
- JP
- Japan
- Prior art keywords
- disk
- protractor
- frame plate
- drawn
- holes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、雲形定規、直定規、波
線定規などとしても使用可能な分度器に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protractor that can also be used as a cloud ruler, a straight ruler, a wavy ruler, or the like.
【０００２】[0002]
【従来の技術】従来、分度器には、半円型、あるいは円
型のものがあり、これを用いて所定角度の直線を求める
ためには、作図する基準線を予め引いてその上に中心点
を仮設し、この基準線上に分度器の直径方向の線分を合
わせた後、所定目盛の位置に目印をつける。しかる後、
該目印と前記中心点を通る直線を、直定規などを用いて
引くことによって、該直線を基準線に対する所定角度の
直線としている。2. Description of the Related Art Conventionally, there is a protractor of a semicircular type or a circular type, and in order to obtain a straight line of a predetermined angle using this, a reference line for drawing is drawn in advance and a center point is placed on the reference line. Is temporarily installed, the line segment in the diametrical direction of the protractor is aligned with this reference line, and then a mark is placed at the position of a predetermined scale. After a while
A straight line passing through the mark and the center point is drawn by using a straight edge ruler or the like to make the straight line a predetermined angle with respect to the reference line.
【０００３】[0003]
【発明が解決しようとする課題】従来の半円型、あるい
は円型の分度器を用いて、例えば、一点を通って所定角
度に刻まれる多数の直線を引くには、各直線ごとに上記
操作を繰り返さざるを得ず、求める直線が多ければ多い
ほど手間がかかる。それは、上述したように、所定目盛
位置に目印を付ける作業と、各目印と前記中心点とを通
る多数の直線を直定規で引く作業とを別々に行わねばな
らないからである。Using a conventional semicircular or circular protractor, for example, in order to draw a large number of straight lines passing through one point and engraved at a predetermined angle, the above operation is performed for each straight line. There is no choice but to repeat, and the more straight lines you seek, the more time-consuming. This is because, as described above, it is necessary to separately perform the work of marking the predetermined scale position and the work of drawing a large number of straight lines passing through each mark and the center point with a straight edge.
【０００４】また、従来の分度器は、分度器以外のもの
に利用することまで考慮に入れられておらず、本来の目
的にのみ使用するための半円型、もしくは円型の普遍的
な形態をしている。従って、雲形曲線、あるいは波線な
どを描く必要が生じた場合には、雲形定規など所定の定
規をその都度取り出さねばならなず甚だ面倒である。本
発明は、前記目印を付ける作業を行わないでも極めて簡
単に所定角度の直線を求めることができる新規な分度器
を提供することを主たる目的とする。また、分度器本来
の目的以外の用途にも広く使用できる新規な分度器を提
供することを第二義的な目的とする。Further, the conventional protractor is not considered to be used for anything other than the protractor, and has a universal shape of a semicircle or a circle for use only for its original purpose. ing. Therefore, when it becomes necessary to draw a cloud-shaped curve or a wavy line, a predetermined ruler such as a cloud-shaped ruler must be taken out each time, which is very troublesome. It is a main object of the present invention to provide a novel protractor which can very easily obtain a straight line of a predetermined angle without performing the work of marking. A second purpose is to provide a novel protractor that can be widely used for purposes other than the original purpose of the protractor.
【０００５】[0005]
【課題を解決するための手段】本分度器は、真円形の孔
１を有する枠板２と前記孔１に摺接するごとく嵌め込み
得る円板３とからなる。円板３の内方には、その直径方
向部分５を有する切欠部４を形成する。前記枠板２の孔
１の内周縁付近と前記円板３の外周縁付近にいずれも角
度を示す目盛を付す。The protractor comprises a frame plate 2 having a true circular hole 1 and a disk 3 which can be fitted into the hole 1 so as to be in sliding contact therewith. A notch 4 having a diametrical portion 5 is formed inside the disc 3. A scale indicating an angle is provided near the inner peripheral edge of the hole 1 of the frame plate 2 and near the outer peripheral edge of the disk 3.
【０００６】前記枠板２には、外突弧状に膨出する膨出
部６を形成し、該膨出部６の端部付近にピン孔８を穿設
する一方、膨出部６には、内周縁を利用して雲形曲線が
描ける流線形や楕円形などの複数の雲形曲線形成部を切
欠するとよい。The frame plate 2 is formed with a bulging portion 6 that bulges in an outward protruding arc shape, and a pin hole 8 is formed near the end of the bulging portion 6, while the bulging portion 6 has a bulging portion 6. , It is advisable to cut out a plurality of cloud-shaped curve forming parts such as streamlines and ellipses that can draw cloud-shaped curves using the inner peripheral edge.
【０００７】前記円板３に形成した切欠部４の直径方向
部分５の側縁には、長さを示す目盛を付しておくとよ
い。It is preferable that the side edge of the diametrical portion 5 of the cutout portion 4 formed in the disc 3 is provided with a scale indicating the length.
【０００８】前記円板３には、一定長さの複数の直線孔
９，９を形成しておくとよい。A plurality of straight holes 9, 9 having a constant length may be formed in the disk 3.
【０００９】前記円板３には、一定長さの複数の波線孔
10，10を形成しておくとよい。The disk 3 has a plurality of wavy holes of a certain length.
10 and 10 should be formed.
【００１０】前記切欠部４を形成した円板３の残りの部
分には、その中心から外周部へ向かって複数の小孔11，
11を穿設しておくとよい。In the remaining portion of the disk 3 having the cutout portion 4, a plurality of small holes 11, from the center to the outer peripheral portion,
11 should be drilled.
【００１１】[0011]
【作用】図１に示すように、枠板２の真円形の孔１に円
板３を摺接するごとく嵌め込む。そして、この円板３の
切欠部４の直径方向部分５を利用して作図する基準線L0
（図３）を予め引いた後、図２に示すように、枠板２の
孔１の内周縁付近に付した角度を示す目盛a1分だけ円板
３を回動させる。しかる後、円板３の内方に形成した切
欠部４の直径方向部分５の側縁に沿わせて直線を引く
と、図３に示すように、一点Ｏを通り基準線L0に対して
角度a1に刻まれた直線L1を描くことができる。図１の角
度a2〜a5分だけ円板３を回動させ、先程の場合と同じよ
うに円板３の切欠部４の直径方向部分５の側縁に沿わせ
て直線を引くと、図３に示すように一点Ｏを通り基準線
L0に対して角度a2〜a5に刻まれた直線L2〜L5を描くこと
ができる。この原理を利用すると、漫画のコマ画面に用
いられる集中線（図４）を極めて容易に描くことができ
る。As shown in FIG. 1, the disc 3 is fitted into the true circular hole 1 of the frame plate 2 so as to be in sliding contact therewith. Then, a reference line L 0 to be drawn by utilizing the diametrical portion 5 of the cutout portion 4 of the circular plate 3
After pulling (FIG. 3) in advance, as shown in FIG. 2, the disc 3 is rotated by a scale a 1 indicating an angle provided near the inner peripheral edge of the hole 1 of the frame plate 2. After that, when a straight line is drawn along the side edge of the diametrical portion 5 of the cutout portion 4 formed inside the disk 3, as shown in FIG. 3, it passes through a point O with respect to the reference line L 0 . A straight line L 1 engraved at an angle a 1 can be drawn. When the disc 3 is rotated by the angles a 2 to a 5 in FIG. 1 and a straight line is drawn along the side edge of the diametrical portion 5 of the notch 4 of the disc 3 in the same manner as the previous case, As shown in Fig. 3, a reference line passes through one point O
It is possible to draw straight lines L 2 to L 5 engraved at angles a 2 to a 5 with respect to L 0 . By using this principle, the concentrated line (FIG. 4) used for the comic frame screen can be drawn very easily.
【００１２】枠板２における膨出部６の外周縁や膨出部
６の内方に位置する流線形や楕円形などの切欠部で形成
される雲形曲線形成部の内周縁に沿わせて曲線を引く
と、多様な雲形曲線を描くことができる。また、膨出部
６の端部付近に形成されたピン孔８にピンを差し込み、
該ピンを中心として分度器本体を少しずつずらせながら
その膨出部６の外周縁、あるいは、前記雲形曲線形成部
の内周縁に沿わせて順次曲線を引いて行くと、同一形状
の雲形曲線を複数本描くことができる。A curve is formed along the inner peripheral edge of the cloud-shaped curve forming portion formed by the outer peripheral edge of the bulging portion 6 of the frame plate 2 and the notch portion such as a streamline or ellipse located inside the bulging portion 6. You can draw various cloud-shaped curves by subtracting. Also, insert a pin into the pin hole 8 formed near the end of the bulging portion 6,
A plurality of cloud-shaped curves having the same shape can be obtained by sequentially drawing a curve along the outer peripheral edge of the bulging portion 6 or the inner peripheral edge of the cloud-shaped curve forming portion while shifting the protractor body little by little around the pin. I can draw a book.
【００１３】また、前記切欠部４の直径方向部分５の側
縁付近に付されている、長さを示す目盛を利用すると、
従来のスケールと同じ使い方ができる。Further, when the scale indicating the length, which is provided near the side edge of the diametrical portion 5 of the cutout 4, is used,
Can be used in the same way as a conventional scale.
【００１４】円板３に穿設した一定長さの複数の直線孔
９，９、あるいは波線孔10，10のいずれか１つを利用す
ると、枠板２の真円形の孔１に摺接することく嵌め込ん
だ円板３の中心から所定寸法離れた任意方向の直線、あ
るいは波線を描くことができ、また、それらを全て用い
ると、所定の間隔隔てた任意方向の複数の直線、あるい
は、所定の間隔隔てた任意方向の複数の波線を平行に描
くことができる。また、円板３の中心から外周部へ向か
って穿設されている複数の小孔11，11のいずれか一つに
筆記具の先端を差し込み円板３を回動させると、１つの
真円もしくは円弧を描くことができ、また、複数の小孔
11，11をそれぞれ利用すると、同心円もしくは同心の円
弧を描くことができる。When any one of a plurality of straight holes 9 and 9 or a plurality of wavy holes 10 and 10 formed in the circular plate 3 is used, the circular hole 1 of the frame plate 2 is slidably contacted. It is possible to draw a straight line or a wavy line which is separated from the center of the fitted disc 3 by a predetermined dimension, and when all of them are used, a plurality of straight lines which are separated by a predetermined interval or a predetermined line are drawn. It is possible to draw a plurality of wavy lines parallel to each other in the arbitrary direction at intervals of. In addition, when the tip of the writing instrument is inserted into any one of the plurality of small holes 11 formed from the center of the disc 3 toward the outer peripheral portion and the disc 3 is rotated, one perfect circle or Can draw an arc, and also multiple small holes
Using 11 and 11 respectively, you can draw concentric circles or concentric arcs.
【００１５】[0015]
【実施例】本発明による分度器の実施例を添付図面に基
づいて説明する。図１，図２、および図５〜図８に分度
器の一例を示す。この分度器は、真円形の孔１を有する
枠板２と該枠板２の孔１に摺接するごとく嵌め込み得る
円板３とからなり、円板３の平面内方に、円板３の直径
方向部分５を有する半円形の切欠部４を切欠し、円板３
の外周縁付近と枠板２の孔１の内周縁付近に角度を示す
目盛０〜360 を付したものである。Embodiments of a protractor according to the present invention will be described with reference to the accompanying drawings. An example of the protractor is shown in FIGS. 1, 2, and 5 to 8. This protractor is composed of a frame plate 2 having a perfect circular hole 1 and a disc 3 which can be fitted into the hole 1 of the frame plate 2 so as to be slidably contacted. A semi-circular cutout 4 having a portion 5 is cut out to form a disc 3
Scales 0 to 360 indicating angles are provided near the outer peripheral edge of the frame and the inner peripheral edge of the hole 1 of the frame plate 2.
【００１６】円板３の内方に切欠した半円形の切欠部４
の直径方向部分５の側縁付近には、長さを示す目盛を付
し従来のスケールとしても使用できるものとする。作図
する基準線に対し所定角度a1の直線を引くに当たって
は、図１に示すように、枠板２の真円形の孔１に円板３
を摺接するごとく嵌め込む。そして、この円板３の切欠
部４の直径方向部分５を利用して作図する基準線L0（図
３）を予め引く。次に図２に示すように、円板３の外周
縁付近に付した目盛０部分を、枠板２の孔１の内周縁付
近に付した所定目盛に合わせ、角度a1（図示例では15
度）分だけ円板３を回動させる。しかる後、円板３の半
円形の切欠部４の直径方向部分５の側縁に沿わせて直線
を引くと、図３に示すように、円板３の中心を通り基準
線L0に対して角度a1（図示例では15度）に刻まれた直線
L1を描くことができる。図１の角度a2〜a5（図示例で
は、30度、45度、60度、75度）だけ円板３を回動させ、
先程の場合と同じように円板３の直径方向部分５の側縁
に沿わせて直線を引くと、図３に示すように、一点０を
通り基準線L0に対して角度a2〜a5に刻まれた直線L2〜L5
を描くことができる。A semicircular notch 4 which is notched inside the disk 3.
A graduation indicating the length is provided near the side edge of the diametrical portion 5 so that it can be used as a conventional scale. When drawing a straight line at a predetermined angle a 1 with respect to the reference line to be drawn, as shown in FIG.
Insert as sliding. Then, a reference line L 0 (FIG. 3) to be drawn using the diametrical portion 5 of the cutout portion 4 of the disk 3 is drawn in advance. Next, as shown in FIG. 2, the scale 0 part provided near the outer peripheral edge of the disk 3 is aligned with the predetermined scale provided near the inner peripheral edge of the hole 1 of the frame plate 2, and the angle a 1 (15 in the illustrated example) is set.
The disc 3 is rotated by (degrees). After that, when a straight line is drawn along the side edge of the diametrical portion 5 of the semicircular cutout portion 4 of the disc 3, as shown in FIG. 3, it passes through the center of the disc 3 with respect to the reference line L 0. Straight line engraved at angle a 1 (15 degrees in the example shown)
L 1 can be drawn. Rotate the disk 3 by the angles a 2 to a 5 (30 degrees, 45 degrees, 60 degrees, 75 degrees in the illustrated example) of FIG.
When a straight line is drawn along the side edge of the diametrical portion 5 of the disc 3 in the same manner as the previous case, as shown in FIG. 3, it passes through a point 0 and forms an angle a 2 to a with respect to the reference line L 0 . Straight line engraved on 5 L 2 to L 5
Can be drawn.
【００１７】因に、漫画には、コマ画面を強調するため
に、図４に示すような集中線がしばしば用いられる。従
来、この集中線は、紙パネル上の載置した原稿用紙の片
隅をピンで止め、該ピンに直定規を当て、この直定規を
移動（スライド）させながら引いているが、直線がブレ
易く、それを防止するためには相当高度なテクニックを
要した。また、線引き後、原稿用紙のピン穴を補修する
必要が生じていた。本分度器にあっては、円板３の中心
を図４に示す集中線の集中する仮想点Ｐに合わせ、上記
方法により線引きすると、特に高度なテクニックを要す
ることなく上記集中線を精密かつ迅速に描くことができ
る。なお、円板３の内方に切欠する切欠部４は、半円形
のみに限定されるものではなく、少くとも直径方向部分
５を有するものであればよい。Incidentally, in a comic, a concentrated line as shown in FIG. 4 is often used to emphasize the frame screen. Conventionally, this concentrated line is drawn by fixing one corner of the original paper placed on the paper panel with a pin, applying a straight edge to the pin, and moving (sliding) the straight edge, but the straight line is easily blurred. , It took a fairly advanced technique to prevent it. Further, after drawing the wire, it is necessary to repair the pin hole of the original paper. In the protractor, if the center of the disk 3 is aligned with the virtual point P where the concentrated line is concentrated as shown in FIG. 4 and the line is drawn by the above method, the concentrated line can be accurately and quickly drawn without requiring any special technique. You can draw. The notch 4 that is cut inward of the disc 3 is not limited to a semicircle, and may have at least a diametrical portion 5.
【００１８】枠板２は、図１，図２，図５のように、そ
の片側半分の外周縁を円板３と同心状の円弧状に、残り
半分を外突弧状に膨出させ、該膨出部６には、内周縁を
利用して雲形曲線が描ける複数の雲形曲線形成部を切欠
する。図示実施例においては、膨出部６の一部を流線形
71と楕円形72に切欠することによって、雲形曲線形成部
が形成された場合を示している。膨出部６の外周縁の形
状は、曲率を種々変化させたものとすることができる。
このような雲形曲線形成部を設けておくと、枠板２の膨
出部６の外周縁やその内方に位置する流線形と楕円形の
切欠部で形成される雲形曲線形成部の内周縁に沿わせて
線を引くと、種々の雲形曲線を描くことができる。ま
た、膨出部６の端部付近には、図１，図８に示すよう
に、複数のピン孔８，８を穿設しておき、そのいずれか
１つのピン孔８にピンを差し込み、該ピンを中心として
分度器本体を少しずつずらせながらその膨出部６の外周
縁、あるいは、前記雲形曲線形成部の内周縁に沿わせて
順次曲線を引いて行くと、同一形状の雲形曲線を複数本
描くことができる。As shown in FIGS. 1, 2 and 5, the frame plate 2 has its outer peripheral edge on one side bulged in an arc shape concentric with the disk 3 and the other half bulged in an outer protruding arc shape. In the bulging portion 6, a plurality of cloud-shaped curve forming portions that can draw a cloud-shaped curve using the inner peripheral edge are cut out. In the illustrated embodiment, a part of the bulging portion 6 is streamlined.
7 shows a case where a cloud-shaped curve forming portion is formed by notching into 7 1 and elliptic shape 7 2 . The shape of the outer peripheral edge of the bulging portion 6 may have various curvatures.
If such a cloud-shaped curve forming portion is provided, the inner peripheral edge of the cloud-shaped curve forming portion formed by the outer peripheral edge of the bulging portion 6 of the frame plate 2 and the streamlined and elliptical cutouts located inside thereof. By drawing a line along with, you can draw various cloud-shaped curves. Further, as shown in FIGS. 1 and 8, a plurality of pin holes 8 and 8 are provided near the end of the bulging portion 6, and a pin is inserted into any one of the pin holes 8. A plurality of cloud-shaped curves having the same shape can be obtained by sequentially drawing a curve along the outer peripheral edge of the bulging portion 6 or the inner peripheral edge of the cloud-shaped curve forming portion while shifting the protractor body little by little around the pin. I can draw a book.
【００１９】なお、枠板２の全周縁を円板３と同心の真
円形状にしたり、枠板２の全周縁を雲形曲線にしたり、
あるいは、枠板２の外周部分の一部を外方へ任意方向に
膨出させる等、任意の形状としてもよい。また、枠板２
の膨出部６の内方に位置する切欠部で形成される複数の
雲形曲線形成部は、実施例で示す流線形や楕円形以外の
他の形状に変更できること勿論である。It should be noted that the entire peripheral edge of the frame plate 2 may be formed into a perfect circular shape concentric with the circular plate 3, or the entire peripheral edge of the frame plate 2 may be formed into a cloud curve.
Alternatively, it may have an arbitrary shape such as a part of the outer peripheral portion of the frame plate 2 bulging outward in an arbitrary direction. Also, the frame plate 2
It is needless to say that the plurality of cloud-shaped curve forming portions formed by the notches located inside the bulging portion 6 can be changed to a shape other than the streamline or elliptical shape shown in the embodiment.
【００２０】前記円板３の切欠部４を除く部分である略
半分には図１に示すように、円板３の中心に相当する部
分から外周部へ向かって長さを示す目盛を付し、図１，
図２，図７(a) に示すようにその一直線上に等間隔に複
数の小孔11，11を穿設し、また、この線上に並んだ小孔
11，11部分を境として図１に示す左右部分に一定長さの
複数の、直線孔９，９と波線孔10，10を切欠する。As shown in FIG. 1, a graduation indicating the length from the portion corresponding to the center of the disk 3 to the outer peripheral portion is attached to approximately half of the disk 3 excluding the notch 4. , Figure 1,
As shown in Figs. 2 and 7 (a), a plurality of small holes 11 and 11 are formed on the straight line at equal intervals, and the small holes arranged on this line.
A plurality of straight holes 9 and 9 and wavy holes 10 and 10 having a constant length are cut out in the left and right portions shown in FIG.
【００２１】円板３の内方に位置する一定長さの複数の
直線孔９，９と波線孔10，10のいずれか１つを利用する
と、枠板２の真円形の孔１に摺接するごとく嵌め込んだ
円板３の中心から所定寸法離れた任意方向の直線、ある
いは、波状の曲線を描くことができ、また、それらを全
て用いると、所定の間隔隔てた任意方向の複数の直線、
あるいは、所定の間隔隔てた任意方向の複数の波線を平
行に描くことができる。When any one of the plurality of straight holes 9 and 9 and the wavy holes 10 and 10 located inside the circular plate 3 and having a certain length is used, the circular hole 1 of the frame plate 2 is slidably contacted. It is possible to draw a straight line in an arbitrary direction or a wavy curve distant from the center of the fitted disc 3 by a predetermined dimension, and if all of them are used, a plurality of straight lines in a predetermined direction at a predetermined interval,
Alternatively, it is possible to draw a plurality of wavy lines that are separated by a predetermined distance in an arbitrary direction in parallel.
【００２２】円板３に穿設した複数の小孔11，11のいず
れか１つに筆記具の先端を差し込み円板３を回動させる
と、１つの真円、もしくは円弧を描くことができる。ま
た、複数の小孔11，11をそれぞれ利用すると、同心円、
もしくは同心の円弧を描くことができる。実施例におい
ては、枠板２の片側半分の外周縁が半円状になってお
り、その外周縁を利用して描かれた半円は、複数の前記
小孔11，11を利用して描いた円に対して最大径のものと
なる。When a tip of a writing instrument is inserted into any one of a plurality of small holes 11 formed in the disc 3 and the disc 3 is rotated, one perfect circle or an arc can be drawn. In addition, if a plurality of small holes 11 and 11 are used respectively, concentric circles,
Or you can draw concentric arcs. In the embodiment, the outer peripheral edge of one half of the frame plate 2 has a semicircular shape, and the semicircle drawn by using the outer peripheral edge is drawn by using the plurality of small holes 11, 11. The maximum diameter is for a circle.
【００２３】[0023]
【発明の効果】請求項１記載の発明によれば、仮枠２の
真円形の孔１に嵌め込んだ円板を、所定角度回動させた
後、円板３の切欠部４の直径方向部分５の側縁に沿って
直線を引くだけで一点を通る所定角度の直線を極めて容
易に描くことができる。また、この原理を利用して漫画
のコマ画面にしばしば用いられる中心へ向かう多数の所
定角度に刻んだ直線、いわゆる集中線を、精密、かつ迅
速に描くことができる。According to the invention described in claim 1, after rotating the disc fitted in the true circular hole 1 of the temporary frame 2 by a predetermined angle, the notch 4 of the disc 3 is diametrically oriented. By simply drawing a straight line along the side edge of the portion 5, a straight line having a predetermined angle passing through one point can be drawn very easily. Further, by utilizing this principle, it is possible to accurately and quickly draw a large number of straight lines, called so-called concentrated lines, that are engraved at a predetermined angle toward the center and that are often used in comic frame screens.
【００２４】請求項２記載の発明によれば、枠板２に形
成した膨出部６の外周縁や該膨出部６の内方に位置する
流線形や楕円形などの切欠部で形成される雲形曲線形成
部の内周縁に沿わせて曲線を引くと、雲形曲線を描くこ
とができる。また、膨出部６の端部付近に穿設したピン
孔８にピンを差し込み、該ピンを中心として本分度器を
少しずつずらせながらその膨出部６の外周縁、あるい
は、前記雲形曲線形成部の内周縁に沿わせて順次曲線を
引いて行くと、同一形状の雲形曲線を複数本容易に描く
ことができる。According to the second aspect of the present invention, the outer peripheral edge of the bulging portion 6 formed in the frame plate 2 and the streamlined or elliptical notch located inside the bulging portion 6 are formed. A cloud-shaped curve can be drawn by drawing a curve along the inner edge of the cloud-shaped curve forming part. In addition, a pin is inserted into a pin hole 8 formed near the end of the bulging portion 6, and the protractor is gradually shifted around the pin while the outer peripheral edge of the bulging portion 6 or the cloud-shaped curve forming portion. By sequentially drawing curves along the inner peripheral edge of, it is possible to easily draw a plurality of cloud-shaped curves of the same shape.
【００２５】請求項３記載の発明によれば、枠板２の真
円形の孔１に摺接するごとく嵌め込んだ円板３の直径方
向部分５付近に付されている長さを示す目盛を利用する
ことにより、分度器でありながら従来のスケールと同じ
使い方ができる。According to the third aspect of the present invention, a scale indicating the length attached to the vicinity of the diametrical portion 5 of the circular plate 3 fitted in the circular hole 1 of the frame plate 2 so as to be slidably contacted is used. By doing so, the protractor can be used in the same way as a conventional scale.
【００２６】請求項４記載の発明によれば、円板３に穿
設した一定長さの複数の直線孔９，９のいずれか１つを
利用すると、枠板２の真円形の孔１に摺接するごとく嵌
め込んだ円板３の中心から所定寸法離れた任意方向の直
線を極めて容易に引くことができ、また、それらを全て
用いると、所定の間隔隔てた任意方向の複数の直線、あ
るいは、所定の間隔隔てた任意方向の複数の波線を平行
に描くことができる。According to the fourth aspect of the present invention, when any one of the plurality of straight holes 9 having a constant length formed in the circular plate 3 is used, the frame 1 has a perfect circular hole 1. It is extremely easy to draw a straight line in an arbitrary direction, which is separated from the center of the disc 3 fitted in such a manner that it is slidably contacted, by a predetermined dimension, and when all of them are used, a plurality of straight lines in an arbitrary direction separated by a predetermined interval, or , A plurality of wavy lines can be drawn in parallel at arbitrary intervals in any direction.
【００２７】請求項５記載の発明によれば、円板３に穿
設した一定長さの複数の波線孔10，10のいずれか１つを
利用すると、枠板２の真円形の孔１に摺接するごとく嵌
め込んだ円板３の中心から所定寸法離れた任意方向の波
線を描くことができる。According to the fifth aspect of the present invention, when any one of the plurality of wavy holes 10 having a constant length and formed in the circular plate 3 is used, the frame plate 2 has a perfect circular hole 1. It is possible to draw a wavy line in an arbitrary direction, which is separated from the center of the disc 3 fitted in such a manner that it is slidably contacted, by a predetermined dimension.
【００２８】請求項６記載の発明によれば、円板３の中
心から外周部へ向かう複数の小孔11，11のいずれか１つ
に筆記具の先端を差し込み円板３を回動させると、１つ
の真円、もしくは円弧を極めて容易に描くことができ、
また、複数の小孔11，11をそれぞれ利用することにより
所定寸法の同心円、もしくは同心の円弧を描くことがで
きる。According to the sixth aspect of the invention, when the tip of the writing instrument is inserted into any one of the plurality of small holes 11, 11 extending from the center of the disc 3 to the outer periphery, the disc 3 is rotated. You can draw a perfect circle or arc very easily,
Further, by using each of the plurality of small holes 11, 11, it is possible to draw a concentric circle or a concentric arc of a predetermined size.
【図１】本発明による分度器の一実施例を示す正面図、FIG. 1 is a front view showing an embodiment of a protractor according to the present invention,
【図２】図１に示す分度器により、一点を通る所定角度
に刻まれた直線を描くために、枠板に嵌め込んだ円板の
基準目盛を、枠板の孔の内周縁付近に付された目盛の所
定位置に回動させた状態を示す正面図、2 is a protractor shown in FIG. 1, in order to draw a straight line engraved at a predetermined angle passing through one point, a reference scale of a disc fitted into the frame plate is attached near the inner peripheral edge of the hole of the frame plate. Front view showing a state in which the scale is rotated to a predetermined position,
【図３】本分度器により描かれた、一点を通り各所定角
度に刻まれた直線群を示す説明図、FIG. 3 is an explanatory view showing a group of straight lines drawn by the protractor and passing through one point and carved at each predetermined angle;
【図４】漫画のコマ画面に用いられる集中線を示す説明
図、FIG. 4 is an explanatory view showing a concentrated line used in a comic frame screen;
【図５】図１に示す分度器の背面図、5 is a rear view of the protractor shown in FIG. 1,
【図６】図１に示す分度器の(a) 右側面図、(b) Ａ−Ａ
線拡大断面図、(C) Ｂ−Ｂ線拡大断面図、6 (a) right side view of the protractor shown in FIG. 1, (b) AA
Line enlarged sectional view, (C) BB line enlarged sectional view,
【図７】図１に示す分度器(a) Ｃ−Ｃ線拡大断面図、
(b) Ｄ−Ｄ線拡大断面図、7 is an enlarged cross-sectional view of the protractor (a) CC line shown in FIG. 1,
(b) DD line enlarged sectional view,
【図８】図１に示す分度器のＥ−Ｅ線拡大断面図であ
る。8 is an enlarged cross-sectional view of the protractor shown in FIG. 1 taken along the line EE.
１…孔、 ２…枠板、 ３…円板、 ４…切欠部、 ５
…直径方向部分、６…膨出部、 ７…雲形曲線形成部、
８…ピン孔、 ９…直線孔、 10…波線孔、 11…小
孔。1 ... Hole, 2 ... Frame plate, 3 ... Disc, 4 ... Notch, 5
... diameter direction portion, 6 ... bulging portion, 7 ... cloud-shaped curve forming portion,
8 ... Pin hole, 9 ... Straight hole, 10 ... Wavy wire hole, 11 ... Small hole.
Claims (6)
摺接するごとく嵌め込み得る円板３とからなり、前記枠
板２の孔１の内周縁付近と前記円板３の外周縁付近にい
ずれも角度を示す目盛を付す一方、円板３の内方には、
その直径方向部分５を有する切欠部４を形成したことを
特徴とする分度器。1. A frame plate 2 having a true circular hole 1 and a disc 3 which can be fitted into the frame plate 1 so as to be slidably contacted therewith. On the inner side of the disk 3, while the scales indicating the angles are attached near the periphery,
A protractor characterized in that a notch 4 having its diametrical portion 5 is formed.
部６を形成し、該膨出部６には、内周縁を利用して雲形
曲線が描ける流線形や楕円形などの雲形曲線形成部を切
欠するとともに、膨出部６の端部付近にピン孔８を穿設
したことを特徴とする分度器。2. The frame plate 2 is formed with a bulging portion 6 which bulges in an outer protruding arc shape, and the bulging portion 6 has a streamlined or elliptical shape in which a cloud curve can be drawn by utilizing an inner peripheral edge. A protractor characterized in that a cloud-shaped curve forming portion such as is cut out and a pin hole 8 is formed near the end of the bulging portion 6.
部分５の側縁には、長さを示す目盛を付したことを特徴
とする請求項１記載の分度器。3. The protractor according to claim 1, wherein the side edge of the diametrical portion 5 of the notch 4 formed in the disc 3 is provided with a scale indicating the length.
９，９を形成したことを特徴とする請求項１記載の分度
器。4. The protractor according to claim 1, wherein the circular plate 3 is formed with a plurality of straight holes 9 having a constant length.
10，10を形成したことを特徴とする請求項１記載の分度
器。5. The circular plate 3 has a plurality of wavy holes of a certain length.
The protractor according to claim 1, wherein the protractor 10 is formed.
分には、その中心から外周部へ向かって複数の小孔11，
11を穿設したことを特徴とする請求項１記載の分度器。6. A plurality of small holes (11) extending from the center to the outer peripheral portion of the remaining portion of the disk (3) having the cutout portion (4).
The protractor according to claim 1, wherein 11 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28439294A JPH08122003A (en) | 1994-10-24 | 1994-10-24 | Protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28439294A JPH08122003A (en) | 1994-10-24 | 1994-10-24 | Protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08122003A true JPH08122003A (en) | 1996-05-17 |
Family
ID=17677987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28439294A Pending JPH08122003A (en) | 1994-10-24 | 1994-10-24 | Protractor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08122003A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006008758A1 (en) * | 2004-07-20 | 2006-01-26 | Nayaki Madhava Raju Hamsa Nand | Geometrical instruments with foolproof plotter holes mechanism |
| CN103350596A (en) * | 2013-07-22 | 2013-10-16 | 山东太古飞机工程有限公司 | Circular curve line drawing indexing hole distribution scale |
| CN104139652A (en) * | 2014-07-17 | 2014-11-12 | 广东工业大学 | Fantasy deforming ruler |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190374A (en) * | 1985-02-20 | 1986-08-25 | 株式会社日立製作所 | Liquid crystal display |
| JPS6261002A (en) * | 1985-09-12 | 1987-03-17 | Fujitsu Ltd | Diffraction element |
| JPS62122465A (en) * | 1985-11-22 | 1987-06-03 | Nec Corp | Clamp circuit |
| JPS62142097A (en) * | 1985-12-16 | 1987-06-25 | Kawasaki Steel Corp | Production of spherical welding flux having small bulk specific density |
-
1994
- 1994-10-24 JP JP28439294A patent/JPH08122003A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61190374A (en) * | 1985-02-20 | 1986-08-25 | 株式会社日立製作所 | Liquid crystal display |
| JPS6261002A (en) * | 1985-09-12 | 1987-03-17 | Fujitsu Ltd | Diffraction element |
| JPS62122465A (en) * | 1985-11-22 | 1987-06-03 | Nec Corp | Clamp circuit |
| JPS62142097A (en) * | 1985-12-16 | 1987-06-25 | Kawasaki Steel Corp | Production of spherical welding flux having small bulk specific density |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006008758A1 (en) * | 2004-07-20 | 2006-01-26 | Nayaki Madhava Raju Hamsa Nand | Geometrical instruments with foolproof plotter holes mechanism |
| CN103350596A (en) * | 2013-07-22 | 2013-10-16 | 山东太古飞机工程有限公司 | Circular curve line drawing indexing hole distribution scale |
| CN104139652A (en) * | 2014-07-17 | 2014-11-12 | 广东工业大学 | Fantasy deforming ruler |
| CN104139652B (en) * | 2014-07-17 | 2016-03-09 | 广东工业大学 | A kind of Multifunctional shape changeable rule |
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