CN201092200Y - Calipers - Google Patents
Calipers Download PDFInfo
- Publication number
- CN201092200Y CN201092200Y CNU2007200279852U CN200720027985U CN201092200Y CN 201092200 Y CN201092200 Y CN 201092200Y CN U2007200279852 U CNU2007200279852 U CN U2007200279852U CN 200720027985 U CN200720027985 U CN 200720027985U CN 201092200 Y CN201092200 Y CN 201092200Y
- Authority
- CN
- China
- Prior art keywords
- circle
- compass
- radius
- scale
- draw
- 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 - Fee Related
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- Pens And Brushes (AREA)
Abstract
A compass belongs to the technical field of study thing while prior art needs a common compass and a ruler to draw a circle with a preset radius, with hard operation and low accuracy. The utility model comprises a circle center rod (3), a drawing rod (4) and a scale (2) hinged together via a rotation shaft (1), wherein the number on the scale (2) is relative to the radius of an object circle. The compass has the advantages of reasonable and practical structure, novel design, the ability for drawing circle with preset radius accurately, easy operation, high accuracy and wide application.
Description
Technical field: the utility model relates to study article device technique field, is a kind of compasses more specifically.
Background technology: the student need finish with common compasses and two kinds of instruments of rule drawing the bowlder that a radius is determined now, and the inconvenient operation and the degree of accuracy are not high yet during picture.
Summary of the invention: for overcoming above-mentioned shortcoming, the purpose of this utility model is a kind of compasses of design.Its technical scheme is: center of circle bar 3, picture bar 4 and dial 2 are hinged by rotating shaft 1, the corresponding drawn radius of a circle of the number of division on dial 2.The advantage of this utility model is: the reasonable in design practicality, and the novelty that is skillfully constructed is used just can draw the accurately circle of required radius of these compasses, its easy to operate accuracy height, it has broken conventional picture circle method, has very high using value.
Description of drawings: this accompanying drawing is the utility model structural representation.In the accompanying drawing: 1, rotating shaft, 2, dial, 3, center of circle bar, 4, draw bar.
The specific embodiment: center of circle bar 3, picture bar 4 and dial 2 are hinged by rotating shaft 1, the corresponding drawn radius of a circle of the number of division on dial 2.Draw bowlder and at first make the position in the center of circle, draw bar 4 according to the big young pathbreaker of drawn radius of circle then and transfer on the dial 2 corresponding position and draw to justify and get final product with center of circle bar 3.
Claims (1)
1. compasses is characterized in that: center of circle bar (3), draw bar (4) and dial (2) hinged by rotating shaft (1), the drawn radius of a circle of number of division correspondence on dial (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200279852U CN201092200Y (en) | 2007-09-24 | 2007-09-24 | Calipers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200279852U CN201092200Y (en) | 2007-09-24 | 2007-09-24 | Calipers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092200Y true CN201092200Y (en) | 2008-07-30 |
Family
ID=39900162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200279852U Expired - Fee Related CN201092200Y (en) | 2007-09-24 | 2007-09-24 | Calipers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092200Y (en) |
-
2007
- 2007-09-24 CN CNU2007200279852U patent/CN201092200Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080730 |