JPH0214472Y2 - - Google Patents
Info
- Publication number
- JPH0214472Y2 JPH0214472Y2 JP1983186412U JP18641283U JPH0214472Y2 JP H0214472 Y2 JPH0214472 Y2 JP H0214472Y2 JP 1983186412 U JP1983186412 U JP 1983186412U JP 18641283 U JP18641283 U JP 18641283U JP H0214472 Y2 JPH0214472 Y2 JP H0214472Y2
- Authority
- JP
- Japan
- Prior art keywords
- eraser
- compass
- leg
- opening
- needle
- 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
- Facsimile Scanning Arrangements (AREA)
- Drawing Aids And Blackboards (AREA)
Description
【考案の詳細な説明】
イ 産業上の利用分野
この考案は固定用脚と開閉作動用脚とからなる
コンパスに関するものである。[Detailed description of the invention] A. Field of industrial application This invention relates to a compass consisting of a fixed leg and an opening/closing leg.
ロ 従来技術
コンパスで円を描く時に書き損じた場合、従来
はコンパスを離して別に用意してある消ゴムで書
き損じた線を消す方法が一般的である。ところが
再度同じ場所に円を描く場合、または修正部分の
みを消して引き続き円などを描く場合中心がずれ
たりコンパスの開脚寸法が変ることがあるなどの
欠点がある。また円孤をけすのは容易ではない。B. Prior art If you make a mistake when drawing a circle with a compass, the conventional method is to remove the compass and use a separately prepared eraser to erase the missed line. However, if you draw a circle in the same place again, or if you erase only the corrected part and continue drawing a circle, there are drawbacks such as the center may shift or the compass spread size may change. Also, it is not easy to defeat Enkou.
ハ 目的
この考案はコンパスで書き損じときに、固定用
脚を着点から離さずに能率よく誤記を消すことが
できるコンパスを提供しようとするものである。C. Purpose This invention aims to provide a compass that can efficiently erase errors when writing with a compass without removing the fixing leg from the landing point.
ニ 構成
開閉作動用脚に消ゴムを保有する脚を連接さ
せ、この消ゴムを開閉作動用脚の軌道と同一軌道
上を動かすことができるように構成したものであ
る。(d) Configuration A leg holding an eraser is connected to the opening/closing leg, and the eraser is configured to be able to move along the same trajectory as the opening/closing leg.
ホ 実施例
図に示される実施例について説明する。第１図
はこの考案による消ゴム付コンパスの概略図であ
る。図において１は先端に針２を有する固定用
脚、３は先端にしん部４を有する開閉作動用脚で
支軸５を支点として回動自在に両者が軸着されて
いる。６は先端に消ゴム７を保有する消ゴム保持
部で開閉作動用脚３に連接されている。またこの
消ゴム保持部６の長さは、描く際に下地に触れぬ
よう開閉作動用脚３より若干短かく構成されると
ともに針２を中心とする同一軌道上にしん部４と
消ゴム７が配置されるよう構成されている。した
がつて針２を基点として任意の円等を描く際に書
き損じたとしても、針２の位置はそのまゝの状態
でコンパスを傾動させるだけで消ゴム７を線上へ
手動操作させることによつてたゞちに誤記を消す
ことが可能である。E. Example The example shown in the figures will be described. FIG. 1 is a schematic diagram of a compass with an eraser according to this invention. In the figure, reference numeral 1 denotes a fixing leg having a needle 2 at its tip, and 3 a leg for opening/closing operation having a ridge portion 4 at its tip, both of which are rotatably attached around a support shaft 5 as a fulcrum. Reference numeral 6 denotes an eraser holder having an eraser 7 at its tip, which is connected to the opening/closing leg 3. In addition, the length of the eraser holding part 6 is configured to be slightly shorter than the opening/closing leg 3 so as not to touch the base when drawing, and the eraser part 4 and the eraser 7 are arranged on the same orbit around the needle 2. It is configured so that Therefore, even if you make a mistake when drawing an arbitrary circle using the needle 2 as the reference point, you can simply tilt the compass while keeping the needle 2 in the same position and manually move the eraser 7 onto the line. It is possible to immediately erase errors.
ヘ 効果
この考案は上述のとおりであるから、コンパス
で書き損じた場合、コンパスを着点から離すこと
なく素早く誤記の訂正が可能であり、中心のずれ
や開脚寸法の変動も防止できるなど秀れたコンパ
スを提供するものである。F. Effects This idea is as described above, so if you make a mistake in writing with the compass, you can quickly correct the mistake without taking the compass away from the landing point, and it is also excellent in that it prevents center deviations and changes in leg width. It provides a compass with
第１図はこの考案によるコンパスの概略図であ
る。
１……固定用脚、２……針、３……開閉作動用
脚、４……しん部、５，１０……支軸、６……消
ゴム保持部、７……消ゴム。
FIG. 1 is a schematic diagram of a compass according to this invention. DESCRIPTION OF SYMBOLS 1... Fixing leg, 2... Needle, 3... Opening/closing leg, 4... Shin part, 5, 10... Support shaft, 6... Eraser holding part, 7... Eraser.
Claims (1)
接するとともに、この消ゴム保持部先端の消ゴム
を筆記部側のしん部と同一軌道上に配置されてい
ることを特徴とするコンパス。 A compass characterized in that an eraser holding part is connected to a leg on the writing part side of the compass, and the eraser at the tip of the eraser holding part is arranged on the same trajectory as the shin part on the writing part side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18641283U JPS6094991U (en) | 1983-11-30 | 1983-11-30 | compass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18641283U JPS6094991U (en) | 1983-11-30 | 1983-11-30 | compass |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6094991U JPS6094991U (en) | 1985-06-28 |
| JPH0214472Y2 true JPH0214472Y2 (en) | 1990-04-19 |
Family
ID=30402651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18641283U Granted JPS6094991U (en) | 1983-11-30 | 1983-11-30 | compass |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6094991U (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57167895U (en) * | 1981-04-16 | 1982-10-22 |
-
1983
- 1983-11-30 JP JP18641283U patent/JPS6094991U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6094991U (en) | 1985-06-28 |
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