JPS6039272Y2 - Protractor with angle scale on a straight line - Google Patents
Protractor with angle scale on a straight lineInfo
- Publication number
- JPS6039272Y2 JPS6039272Y2 JP1978040201U JP4020178U JPS6039272Y2 JP S6039272 Y2 JPS6039272 Y2 JP S6039272Y2 JP 1978040201 U JP1978040201 U JP 1978040201U JP 4020178 U JP4020178 U JP 4020178U JP S6039272 Y2 JPS6039272 Y2 JP S6039272Y2
- Authority
- JP
- Japan
- Prior art keywords
- protractor
- piece
- angle
- width
- center
- 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.)
- Expired
Links
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Description
【考案の詳細な説明】
本考案は分度器に係るもので、同一円に於ては、円周角
の大きさと、円周の長さが正比例することに着目し、主
分度器片aと、幅分度器片すとを同一中心Oで摺動可能
な軸着とし、幅分度器片と副尺片Cとは幅分度器片の有
する円弧部と、主分度器片の有する真直ぐで細長い導溝
dの8の箇所で、ラック機構で連成した構造だから、幅
分度器片の嫡子部6で正並びに逆の方向に転回させれば
、その動きに応じて副尺片は導溝内を直線的に左右に滑
り動き、又逆に幅尺片の一端で、幅尺片を左右に滑り動
かせば、摘子片は転回的に開閉する。[Detailed description of the invention] This invention relates to a protractor. Focusing on the fact that in the same circle, the size of the circumferential angle and the length of the circumference are directly proportional, the main protractor piece a and the width The protractor pieces are pivoted so that they can slide at the same center O, and the width protractor piece and the subscale piece C are connected to the circular arc part of the width protractor piece and the straight and elongated guide groove d of the main protractor piece. Since the structure is connected by a rack mechanism at each point, if the protractor piece is rotated in the normal and reverse directions at the heir part 6, the vernier piece will slide linearly from side to side within the guide groove in accordance with the movement. If you move or, conversely, slide the width piece from side to side at one end of the width piece, the knob piece opens and closes in a rotational manner.
又8の連成箇所で生ずる間隙を無くする為に、一定の引
張りの力が常時作用しているよう、又主分度器片と幅分
度器片の間に出来る段差を無くして水平状態を保つよう
、更に又幅分度器片は角度測定径固定し得るようにした
ことを図示しており、eはゴム紐、fは糸、f′は中心
Oとした円弧状の曲縁、P並にQは何れもゴム紐並に糸
の端を固定するビス、Kは段差修正板、11は長溝、1
2は蝶ネジである。In addition, in order to eliminate the gap that occurs at the connecting point 8, a constant tensile force is always applied, and the level difference between the main protractor piece and the width protractor piece is eliminated to maintain a horizontal state. Furthermore, the diagram shows that the width protractor piece can be fixed to the angle measurement diameter, e is a rubber string, f is a thread, f' is an arc-shaped curved edge with the center O, and P and Q are either is a screw that fixes the end of the thread like a rubber string, K is a step correction plate, 11 is a long groove, 1
2 is a thumbscrew.
(1)主分度器片aの有する主尺の角度目盛1並に1′
と、幅尺片Cの目盛2の間隔は、共に幅分度器片すの円
弧部が有する軸心Oを中心とし、半径rの円の円周の1
/4の長さと相等しい直線の夫々1/9と1110の長
さであるから、1並に1′に角度目盛は、中心角の角度
数O°、10゜・・・90’並に180°、170°・
・・90°の10°単位となり、その目盛は互に補角を
なす表示にし、又一つの角を画いた場合に於て、その角
の反対側の角との和は、常に円周角の角度数の360°
となる故、図示の如く目盛れは、0°から360°間の
円周角の全部を10°単位の角度数で表示出来ることに
なる。(1) Angle scale 1 and 1' of the main scale of the main protractor piece a
and the interval between the scales 2 of the width protractor piece C are 1 of the circumference of a circle with a radius r centered on the axis O of the circular arc part of the width protractor piece C.
Since the length of a straight line is 1/9 and 1110, respectively, which is equal to the length of /4, the angle scale at 1 and 1' is the number of angles of the central angle, 0°, 10°...90' and 180. °, 170°・
...90° in 10° increments, and the scales are shown as mutually complementary angles, and when one angle is drawn, the sum of that angle and the opposite angle is always the circumferential angle. number of angles of 360°
Therefore, as shown in the figure, the scale can display all the circumferential angles between 0° and 360° in units of 10°.
幅尺目盛2の目盛数は夫々0.1.2・・・10並に1
0.9・・・0とし、上下の数は互にlOの補数になる
表示にしたので、主尺目盛と副尺目盛を合せて読むこと
により、10単位の角度を正確に測定出来る。The number of scale marks of width scale scale 2 is 0.1.2...10 and 1, respectively.
0.9...0, and the upper and lower numbers are displayed as complements of lO, so by reading the main and vernier scales together, it is possible to accurately measure angles in units of 10.
主尺と副尺の目盛を更に細かく等分したり、或は副尺片
の移動を、従来のマイクロロメーターと同様な機構で行
うことにより、角度の単位を更に小さくすることが出来
る。The unit of angle can be made even smaller by dividing the scales of the main scale and vernier scale into even smaller scales, or by moving the vernier scale piece using a mechanism similar to that of a conventional micrometer.
又同一軸に大小二部の歯車を固定し、小歯車は幅分度器
片の有する円弧部の歯車と、又大歯車は幅尺片のラック
機構の8の箇所で、互に噛み合う様連戊すれば、その大
小の歯車の半径の比の値に等しく1.1′並に2の目盛
の間隔を拡大することが出来るので、目盛が見易く、角
度測定の正確度を高めることが出来る。In addition, two gears, large and small, are fixed on the same shaft, and the small gear is connected to the gear on the arc part of the width protractor piece, and the large gear is connected to the rack mechanism of the width protractor piece at 8 points so that they mesh with each other. For example, the interval between the scales can be increased to 1.1' or 2 equal to the value of the ratio of the radii of the large and small gears, so the scales can be easily seen and the accuracy of angle measurement can be increased.
幅尺片の有する指針7の外に、幅尺片の他の箇所に別の
指針を付け、この指針に対応するように、主分度器片上
部にカセット枠を設け、予め用意した夫々の目盛板を挿
入替えの出来るようにすることにより、各種の正多角形
や円グラフ等を簡単に画くことに利用することが出来る
。In addition to the pointer 7 that the width piece has, another pointer is attached to another location on the width piece, and a cassette frame is provided at the top of the main protractor piece so as to correspond to this pointer, and each scale plate prepared in advance is attached. By making it possible to insert and replace , it can be used to easily draw various regular polygons, pie charts, etc.
(2)本案品の主分度器片aには、中心Oを通る水平基
線10と平行な辺4を、中心Oの右方に、又10とZa
をなす辺5をそれの左方に有腰且4と相接する辺4′を
下縁に、5と一直線をなす辺5′を上縁に有する幅分度
器片すの嫡子片6を連設したから、水平基線10と、幅
分度器片すの有する基指線3とで形成される夫々の求め
るZaXZβ並にZa′、Zβ′の角度を指針7が示す
ことになり、従って主分度器片aの辺4と幅分度器片の
辺4′でlaとZa′を、同様に辺5と5′とでZaと
Zβ′を直に引線表示し得ることになる。(2) The main protractor piece a of this product has a side 4 parallel to the horizontal base line 10 passing through the center O, and 10 and Za
A protractor piece 6 is connected to the left side of the width protractor piece, which has a side 5 with a waist and a side 4' that is in contact with 4 as the lower edge, and a side 5' that is in line with 5 as the upper edge. Therefore, the pointer 7 indicates the angles of Za', Zβ' as well as ZaXZβ formed by the horizontal base line 10 and the base line 3 of the width protractor piece a. La and Za' can be directly drawn using side 4 and side 4' of the width protractor piece, and similarly Za and Zβ' can be directly drawn using sides 5 and 5'.
この引線表示した四つの角の中、ZaとZaは互に補角
をなし、laとZa′並にZaとZβ′とは、夫々互に
その和が3600の円周角をなすものである。Among the four angles indicated by drawn lines, Za and Za are mutually complementary angles, and la and Za' as well as Za and Zβ' each form a circumferential angle whose sum is 3600. .
尚求める角の中心を正確に得るために主分度器片aと幅
分度器片すとに、中心Oを通る直線上にあるよう図示の
如く二つの小孔mとnを設け、始めに小孔m、oXnで
印した点を結んで得た直線mnを基線に、又0を基点と
し、次に嫡子片を移動させた位置で、小孔mで印した点
をm′、nで印した点をn′とし、m′とQ、n’と0
を夫々結ぶことにより、指針7が示す互に補角をなす角
即ち1mom=la並にl nom’ = laと、又
Zaとの和が3600になるZa′=Zm’onと、Z
aとの和が同じ<360°になるZβ′=ZnOm′の
四つの角を引線表示し得たことになる。In order to accurately find the center of the desired angle, two small holes m and n are provided in the main protractor piece a and the width protractor piece as shown in the figure so that they are on a straight line passing through the center O. , o Let n' be n', m' and Q, n' and 0
By connecting the mutually complementary angles indicated by the pointer 7, that is, 1mom=la and lnom'=la, and Za'=Zm'on, whose sum with Za becomes 3600, and Z
This means that the four corners of Zβ'=ZnOm' where the sum with a is the same <360° can be shown as drawn lines.
前述の考え方で連成した構造で又その様に作用をする分
度器だから、従来の分度器と比較すれば、角度目盛が見
易く、角の引線が正確且迅速になり、又直線上に付けた
目盛故、任意の角を任意に等分すること、並に任意の大
きさの種々の正多角形を画くこと、更に根号の付いた角
度の角を引線表示することが出来る。Since the protractor has a structure coupled with the above-mentioned concept and operates in the same way, the angle scale is easier to see, the angle drawing line is accurate and quick, and the scale is attached on a straight line. , it is possible to arbitrarily divide any angle into equal parts, to draw various regular polygons of any size, and to display angles with radicals as drawing lines.
図は本考案の一例を示すものであって、第1図は本案品
の正面図、第2図は本案品の使用状態を示す正面図、第
3図は本案品の背面の正面図である。
図に於て、Oは軸の中心、aは主分度器片、bは幅分度
器片、Cは幅尺片、dは導溝、eはゴム紐、fは糸、1
並に1′は角度目盛、2は副尺目盛、3は基指線、f′
は弧状の曲縁、Pはゴム紐の止めビス、Qは糸の止めビ
ス、10は水平基線、6は嫡子片、7は指針、4と4′
は水平基線と平行な辺、5と5′は水平基線とZaをな
す辺、8は歯部の接触部、mとnは小孔、Kは段差修正
板。The figures show an example of the present invention. Figure 1 is a front view of the product, Figure 2 is a front view showing the product in use, and Figure 3 is a front view of the back of the product. . In the figure, O is the center of the shaft, a is the main protractor piece, b is the width protractor piece, C is the width piece, d is the guide groove, e is the rubber string, f is the thread, 1
In addition, 1' is the angle scale, 2 is the vernier scale, 3 is the base finger line, and f'
is an arc-shaped curved edge, P is a rubber string fixing screw, Q is a thread fixing screw, 10 is a horizontal base line, 6 is a legitimate piece, 7 is a pointer, 4 and 4'
is a side parallel to the horizontal base line, 5 and 5' are sides forming Za with the horizontal base line, 8 is a contact part of the tooth part, m and n are small holes, and K is a step correction plate.
Claims (1)
の円に外接する辺5と5′を夫々有する主分度器片a1
副分度器片すと、それに副尺片Cの三つから威り、aと
bは同一中心で摺動可能に軸着してあり、bは円弧部と
嫡子部6をもち、Cはaの細長い導溝中に存在して、b
の円弧部の回転に応じてCが左右に移動するものであっ
てで、歯車やラック機構又は4索の仲介で左右するCの
もつ指針が、bの回転角度を表示すると同時に引線辺4
と4′、並に5と5′で、表示通りの角度の角を、引線
表示出来る直線上に角度目盛のある分度器の構造。Sides 4 and 4' parallel to the base line 10 passing through the center O, and the center O
A main protractor piece a1 having sides 5 and 5' circumscribing the circle of
The sub-protractor piece has three vernier pieces C attached to it, a and b are pivoted so as to be able to slide on the same center, b has a circular arc part and a legitimate child part 6, and C has a circular arc part and a heir part 6. Existing in the elongated guide groove, b
C moves left and right according to the rotation of the circular arc part of C, and the pointer of C, which moves left and right through the mediation of gears, rack mechanisms, or four cables, displays the rotation angle of b and at the same time moves the drawing line side 4.
and 4', as well as 5 and 5', the structure of a protractor with an angle scale on a straight line that allows you to draw the angle as shown.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1978040201U JPS6039272Y2 (en) | 1978-03-29 | 1978-03-29 | Protractor with angle scale on a straight line |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1978040201U JPS6039272Y2 (en) | 1978-03-29 | 1978-03-29 | Protractor with angle scale on a straight line |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54145259U JPS54145259U (en) | 1979-10-08 |
JPS6039272Y2 true JPS6039272Y2 (en) | 1985-11-25 |
Family
ID=28908467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1978040201U Expired JPS6039272Y2 (en) | 1978-03-29 | 1978-03-29 | Protractor with angle scale on a straight line |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6039272Y2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5216751U (en) * | 1975-07-24 | 1977-02-05 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5147350U (en) * | 1974-10-07 | 1976-04-08 |
-
1978
- 1978-03-29 JP JP1978040201U patent/JPS6039272Y2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5216751U (en) * | 1975-07-24 | 1977-02-05 |
Also Published As
Publication number | Publication date |
---|---|
JPS54145259U (en) | 1979-10-08 |
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