JPS63172698A - Compass with scale - Google Patents

Compass with scale

Info

Publication number
JPS63172698A
JPS63172698A JP358987A JP358987A JPS63172698A JP S63172698 A JPS63172698 A JP S63172698A JP 358987 A JP358987 A JP 358987A JP 358987 A JP358987 A JP 358987A JP S63172698 A JPS63172698 A JP S63172698A
Authority
JP
Japan
Prior art keywords
compass
scale
radius
recorded
ruler
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
Application number
JP358987A
Other languages
Japanese (ja)
Inventor
均 石川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP358987A priority Critical patent/JPS63172698A/en
Publication of JPS63172698A publication Critical patent/JPS63172698A/en
Pending legal-status Critical Current

Links

Landscapes

  • Length-Measuring Instruments Using Mechanical Means (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 （１）第１図ａ図のように目盛りを付けた頭とねじを切
った心棒を製作する （２）コンパスの足の中間に可動式の足を付け、この足
を第１図ｃ図の筒に付け、第２図のように組立てる（３
）第２図のように目盛り付きボルトを回転することによ
り筒が上下し、コンパスが開閉する （４）第１図ｂ図の目盛合せにボルトの目盛りの数字に
合った所がコンパスの半径になるよう目盛っておくと定
規で求めていたときの不便さは解消されるのでコンパス
の半径を非常に簡単に求められる。[Detailed description of the invention] (1) Make a head with a scale and a threaded stem as shown in Figure 1a. (2) Attach a movable foot between the legs of the compass, and Attach it to the tube shown in Fig. 1 c, and assemble it as shown in Fig. 2 (3
) As shown in Figure 2, by rotating the graduated bolt, the cylinder moves up and down, opening and closing the compass. (4) When adjusting the scale in Figure 1 b, the point that matches the number on the scale of the bolt is the radius of the compass. If you set the scale so that the compass radius is calculated, the inconvenience of using a ruler will be eliminated, making it very easy to calculate the radius of the compass.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は部分図…１葉 第２図は全体図…１葉 Figure 1 is a partial diagram...1 leaf Figure 2 is the overall view...1 page

Claims (1)

【特許請求の範囲】[Claims] コンパスで円を描くとき定規で半径を求めてたのをコン
パスに付けた目盛りで測るようにするWhen drawing a circle with a compass, instead of finding the radius with a ruler, you can now measure it with a scale attached to the compass.
JP358987A 1987-01-10 1987-01-10 Compass with scale Pending JPS63172698A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP358987A JPS63172698A (en) 1987-01-10 1987-01-10 Compass with scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP358987A JPS63172698A (en) 1987-01-10 1987-01-10 Compass with scale

Publications (1)

Publication Number Publication Date
JPS63172698A true JPS63172698A (en) 1988-07-16

Family

ID=11561650

Family Applications (1)

Application Number Title Priority Date Filing Date
JP358987A Pending JPS63172698A (en) 1987-01-10 1987-01-10 Compass with scale

Country Status (1)

Country Link
JP (1) JPS63172698A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007090700A (en) * 2005-09-29 2007-04-12 Kiyoyuki Takenaka Thumbtack

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007090700A (en) * 2005-09-29 2007-04-12 Kiyoyuki Takenaka Thumbtack

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