CN2468761Y - Multi-functional geometric drawing ruler - Google Patents
Multi-functional geometric drawing ruler Download PDFInfo
- Publication number
- CN2468761Y CN2468761Y CN 01213101 CN01213101U CN2468761Y CN 2468761 Y CN2468761 Y CN 2468761Y CN 01213101 CN01213101 CN 01213101 CN 01213101 U CN01213101 U CN 01213101U CN 2468761 Y CN2468761 Y CN 2468761Y
- Authority
- CN
- China
- Prior art keywords
- semi
- protractor
- angle
- circular recesses
- functional
- 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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- Drawing Aids And Blackboards (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a multi-functional geometry drawing ruler. A groove is arranged above the semi-circular concave board, the left; right and bottom of the semi-circular concave board are straight edges, a protractor is arranged inside the semi-circular groove and the two crown faces are inosculated and can glide along the semi-circular groove. The utility model has the full functions of a set square, a ruler and a protractor and has the advantages of simple and novel structure and is an ideal drawing tool for geometry, physics and engineering drawing.
Description
The utility model relates to a kind of multi-functional how much line drawing rulers.
Traditional geometric drawing lineman has set square, ruler, protractor etc., and set square and ruler are confined to special angle and straight line, can't be accurate to being divided into unit, and efficient is low.Some multi-functional scoring tools are also arranged, but because complex structure, cost is higher and be difficult to promote the use of.
Design of the present utility model: a kind of multi-functional how much line drawing rulers, comprise protractor (9), the top of semicircle notch board (10) is semi-circular recesses (11), the left side, the right and base are straight flange, protractor (9) is arranged in semi-circular recesses (11), and its semicircle cambered surface (12) matches with the semicircle cambered surface (5) of semi-circular recesses (11), and can slide along the semicircle cambered surface (5) of semi-circular recesses (11).
Be shaped on length scale (1) on the straight flange of protractor (9).Be shaped on angle correct scale (6) under the semi-circular recesses (11), both sides are shaped on angle vernier (7) and (8).The left side, base and the right of semicircle notch board (10) are shaped on length scale (2), length scale (3) and length scale (4) respectively.
Advantage that the utility model compared with prior art has and effect:
1, the utility model not only has the repertoire of set square, ruler and protractor, and novelty simple in structure, and is easy to use, safe to carry, can replace traditional scoring tool fully.
2, protractor of the present utility model and semicircle notch board can be used in combination and can use separately, and line is accurately quick, are the comparatively ideal scoring tools in aspect such as how much of study, physics, Graphing of Engineering, line operation.
3, the utility model is provided with the angle vernier, and drawn angle can be accurate to branch, and direct reading on the angle vernier, has improved efficient and precision that the geometric drawing lineman does.
4, the utility model is only used the just direct blank-forming of energy of a rectangle material, and good manufacturability can improve stock utilization to greatest extent, reduces cost.
Fig. 1 is a structural representation of the present utility model,
Fig. 2 is user mode figure of the present utility model,
Fig. 3 is user mode figure of the present utility model.
1,2,3 a kind of embodiment of the present utility model is described in conjunction with the accompanying drawings.
A kind of multi-functional how much line drawing rulers, comprise protractor (9), the top of semicircle notch board (10) is semi-circular recesses (11), the left side, the right and base are straight flange, protractor (9) is arranged in semi-circular recesses (11), and its semicircle cambered surface (12) matches with the semicircle cambered surface (5) of semi-circular recesses (11), and can slide along the semicircle cambered surface (5) of semi-circular recesses (11).
Be shaped on length scale (1) on the straight flange of protractor (9).Be shaped on angle correct scale (6) under the semi-circular recesses (11), both sides are shaped on angle vernier (7) and (8).The left side, base and the right of semicircle notch board (10) are shaped on length scale (2), length scale (3) and length scale (4) respectively.
Using method:
1, draw angle line: with reference to Fig. 2, at first that protractor (9) is concordant with semicircle notch board (10), 90 ° of angle indexs on the protractor (9) are alignd for 90 ° with angle correct scale on the semicircle notch board (10), be starting point with the initial point O on the protractor (9) again, the required length of intercepting on the straight flange of protractor (9), the initial line at angle draws, semicircle then notch board (10) is motionless, protractor (9) is rotated to desired angle along the semicircle cambered surface (5) of the semi-circular recesses (11) of semicircle notch board (10), the required length of intercepting on the straight flange of protractor (9), the draw whole limit at angle, the desired angle of can drawing.When desired angle is not that integer is when spending, draw behind the initial line at angle, earlier protractor (9) is rotated to desired angle (integer degree), counter clockwise direction fine motion protractor (9), making the last desired angle (branch) in angle vernier (7) or (8) go up nearest angle index line with protractor (9) aligns, intercept required length, the whole limit at the angle of drawing, the desired angle of can drawing.
Angle is used right side angle vernier (8) when 0 °～90 ° or 180 °～270 °, angle is used left side angle vernier (7) when 90 °～180 ° or 270 °～360 °.
2, draw parallel lines: with reference to Fig. 3, semicircle notch board (10) is moved along protractor (9) straight line is parallel, utilize straight line on the semicircle notch board (10) parallel lines that can draw.
Claims (4)
1, a kind of multi-functional how much line drawing rulers, comprise protractor (9), it is characterized in that: the top of semicircle notch board (10) is semi-circular recesses (11), the left side, the right and base are straight flange, protractor (9) is arranged in semi-circular recesses (11), and its semicircle cambered surface (12) matches with the semicircle cambered surface (5) of semi-circular recesses (11), and can slide along the semicircle cambered surface (5) of semi-circular recesses (11).
2, multi-functional how much line drawing rulers according to claim 1 is characterized in that: be shaped on length scale (1) on the straight flange of protractor (9).
3, multi-functional how much line drawing rulers according to claim 1, it is characterized in that: be shaped on angle correct scale (6) under the semi-circular recesses (11), both sides are shaped on angle vernier (7) and (8).
4, multi-functional how much line drawing rulers according to claim 1, it is characterized in that: the left side, base and the right of semicircle notch board (10) is shaped on length scale (2), length scale (3) and length scale (4) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213101 CN2468761Y (en) | 2001-03-09 | 2001-03-09 | Multi-functional geometric drawing ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01213101 CN2468761Y (en) | 2001-03-09 | 2001-03-09 | Multi-functional geometric drawing ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2468761Y true CN2468761Y (en) | 2002-01-02 |
Family
ID=33632151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01213101 Expired - Fee Related CN2468761Y (en) | 2001-03-09 | 2001-03-09 | Multi-functional geometric drawing ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2468761Y (en) |
-
2001
- 2001-03-09 CN CN 01213101 patent/CN2468761Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |