JPS63148488U - - Google Patents
Info
- Publication number
- JPS63148488U JPS63148488U JP4079487U JP4079487U JPS63148488U JP S63148488 U JPS63148488 U JP S63148488U JP 4079487 U JP4079487 U JP 4079487U JP 4079487 U JP4079487 U JP 4079487U JP S63148488 U JPS63148488 U JP S63148488U
- Authority
- JP
- Japan
- Prior art keywords
- equal
- outer periphery
- synthetic resin
- transparent synthetic
- protractor
- 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
- 229920003002 synthetic resin Polymers 0.000 claims 4
- 239000000057 synthetic resin Substances 0.000 claims 4
Landscapes
- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Description
第１図は本考案の１実施例の平面図。第２図は
二つ割りとした別の実施例の平面図。第３図は外
周を三角形にしたさらに別の実施例の平面図。
１……等分分度器、２……小孔、３，３′，４
，４′，５，５′，６，６′，６″，６……溝
孔、７……小孔、８……二等分線、９……結合用
凹凸。
FIG. 1 is a plan view of one embodiment of the present invention. FIG. 2 is a plan view of another embodiment divided into two parts. FIG. 3 is a plan view of yet another embodiment in which the outer periphery is triangular. 1...Equal protractor, 2...Small hole, 3, 3', 4
, 4', 5, 5', 6, 6', 6'', 6...Slot hole, 7...Small hole, 8...Bisector line, 9...Connection unevenness.
Claims (1)
小孔を中心として幅の狭い溝孔を放射方向に設け
、前記放射方向の溝孔が前記小孔を中心とする円
周を３，４，５……等分するように等角度で配置
された数組の溝孔群より成る等分分度器。 ２ 前記透明な合成樹脂板の外周が円形で、前記
円形外周に角度目盛が設けられている、実用新案
登録請求の範囲第１項に記載の等分分度器。 ３ 前記透明な合成樹脂板の外周が三角形または
四角形で、前記三角形または四角形外周に寸法目
盛が設けられるとともに、前記中央部の小孔と同
心円上に角度目盛が設けられている、実用新案登
録請求の範囲第１項に記載の等分分度器。 ４ 前記透明な合成樹脂板がほゞ同じ大きさに２
分割され、分割面に両部分を着脱可能に結合する
凹凸部が設けられている、実用新案登録請求の範
囲第１項ないし第３項に記載の等分分度器。[Claims for Utility Model Registration] 1. A small hole is formed in the center of a transparent synthetic resin plate, narrow slots are provided in radial directions around the small hole, and the slots in the radial direction are connected to the small holes. An equal protractor consisting of several groups of slots arranged at equal angles to divide the circumference of a circle around the center into 3, 4, 5... equal parts. 2. The equal division protractor according to claim 1, wherein the outer periphery of the transparent synthetic resin plate is circular, and an angular scale is provided on the circular outer periphery. 3. A request for registration of a utility model, in which the outer periphery of the transparent synthetic resin plate is triangular or square, and a dimensional scale is provided on the outer periphery of the triangle or square, and an angular scale is provided on a circle concentric with the small hole in the center. The equal division protractor described in the range 1. 4 The transparent synthetic resin plates are 2 pieces of approximately the same size.
The equal portion protractor according to claims 1 to 3, which is divided into parts and has a concavo-convex portion on the divided surface for removably connecting both parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4079487U JPS63148488U (en) | 1987-03-23 | 1987-03-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4079487U JPS63148488U (en) | 1987-03-23 | 1987-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63148488U true JPS63148488U (en) | 1988-09-29 |
Family
ID=30855196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4079487U Pending JPS63148488U (en) | 1987-03-23 | 1987-03-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63148488U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS416023Y1 (en) * | 1964-03-30 | 1966-03-29 |
-
1987
- 1987-03-23 JP JP4079487U patent/JPS63148488U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS416023Y1 (en) * | 1964-03-30 | 1966-03-29 |
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