CN103507508A - Radius-self-setting compasses - Google Patents
Radius-self-setting compasses Download PDFInfo
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- CN103507508A CN103507508A CN201210205612.5A CN201210205612A CN103507508A CN 103507508 A CN103507508 A CN 103507508A CN 201210205612 A CN201210205612 A CN 201210205612A CN 103507508 A CN103507508 A CN 103507508A
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- radius
- compasses
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- setting
- dial
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Abstract
The invention relates to stationery, in particular to radius-self-setting compasses. A semicircular radius length scale disc is arranged on a shaft rod between two supporting legs of common compasses. A supporting point of one of the supporting legs is fixed on the zero point of the scale disc, so that the inner side line of the other supporting leg is set on the needed radius length value. By such analogy, the radius length values of scale lines of the radius length scale disc are marked. The radius-self-setting compasses have the advantages that according to needed radius values, positions are directly set on the scale disc of the compasses, circles with the radius values needed by a user can be directly drawn, and accordingly circle drawing speed is improved.
Description
Technical field:
The present invention relates to a kind of stationery.
Background technology:
The compasses of selling on market, can measure painted radius of a circle; Or by known radius, adjust the angle of compasses, can draw the circle of required radius.
Summary of the invention:
The object of the invention is to provide a kind of compasses of making radius by oneself of painting circular velocity that improved.
The compasses of making radius by oneself are comprised of common compasses and semicircle radius length dial; Semicircular radius length dial is arranged on the axostylus axostyle between common compasses two supporting legs, and wherein the fulcrum of a supporting leg was fixed on the zero point of dial.The position of the fulcrum of another supporting leg should be to fix on the length groove that requires radius of circle, and shows in fan dial Shang Suoding position from the sideline, inner side of this supporting leg.The radius of a circle of drawing thus should be the radius of circle of requirement length.Employing is made the compasses of radius by oneself and can directly on compasses, be fixed and need to draw radius of a circle value as requested, and directly draws the circle that oneself needs radius value, thus, has improved and has painted circular velocity.
The compasses of making radius by oneself are on the axostylus axostyle between common compasses two supporting legs, and a semicircular radius length dial is set; Wherein the fulcrum of a supporting leg was fixed on the zero point of dial, and the sideline, inner side of another supporting leg is fixed in the radius length value of requirement; By that analogy, mark the radius length value of every graticule on radius dial.
The beneficial effect that the compasses of radius are made in employing by oneself be can be as requested radius value, directly on the dial of compasses, fix position, can directly draw the circle that oneself needs radius value, thus, improved and painted circular velocity.
Accompanying drawing explanation:;
Fig. 1 is the structural representation of making the compasses of radius by oneself.
The specific embodiment:
With reference to Fig. 1, the compasses of making radius by oneself are on the axostylus axostyle 1 between common compasses two supporting legs, and a semicircular radius length dial 2 is set; Wherein the fulcrum of a supporting leg 3 was fixed on the zero point of dial 2, and the sideline, inner side of another supporting leg 4 is fixed in the radius length value of requirement; By that analogy, mark the radius length value of every graticule on radius dial.
Claims (1)
1. make the compasses of radius by oneself, it is characterized in that: by common compasses and semicircle radius length dial, formed, the axostylus axostyle (1) that semicircular radius length dial (2) is arranged between common compasses two supporting legs is upper, and wherein the fulcrum of a supporting leg (3) was fixed on the zero point of dial (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210205612.5A CN103507508A (en) | 2012-06-18 | 2012-06-18 | Radius-self-setting compasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210205612.5A CN103507508A (en) | 2012-06-18 | 2012-06-18 | Radius-self-setting compasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103507508A true CN103507508A (en) | 2014-01-15 |
Family
ID=49891143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210205612.5A Pending CN103507508A (en) | 2012-06-18 | 2012-06-18 | Radius-self-setting compasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103507508A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904029A (en) * | 2017-01-25 | 2017-06-30 | 东莞产权交易中心 | Multifunctional compasses |
-
2012
- 2012-06-18 CN CN201210205612.5A patent/CN103507508A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904029A (en) * | 2017-01-25 | 2017-06-30 | 东莞产权交易中心 | Multifunctional compasses |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |