CN201573430U - Ruler protractor - Google Patents
Ruler protractor Download PDFInfo
- Publication number
- CN201573430U CN201573430U CN2009202075736U CN200920207573U CN201573430U CN 201573430 U CN201573430 U CN 201573430U CN 2009202075736 U CN2009202075736 U CN 2009202075736U CN 200920207573 U CN200920207573 U CN 200920207573U CN 201573430 U CN201573430 U CN 201573430U
- Authority
- CN
- China
- Prior art keywords
- protractor
- ruler
- rulers
- utility
- angle
- 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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Abstract
The utility model discloses a ruler protractor. The ruler protractor adopts the structure that a protractor is clamped between the ends of two superposed rulers; the two rulers and the protractor are connected at the center point of the protractor through rivets; and an angle indicatrix parallel to the two long edges of the ruler and passing through the center point is drawn on the upper ruler. The ruler protractor has the technical benefits of convenient operation and strong practicability, and is easy to learn and to understand.
Description
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of ruler protractor.
Background technology
At present, the teacher draws the angle and bothers very much on blackboard, to draw a limit with ruler earlier, then with the good required angle of protractor amount, on the required angle with chalk point on a point, and then the limit that will before draw with ruler and the point of chalk point couple together, just can draw what a angle, the process very complicated is lost time, and is unfavorable for very much teaching.
The utility model content
The utility model proposes a kind of ruler protractor, between the ruler of two coincidences, accompany a protractor, protractor is clipped in the termination of ruler, two rulers are connected with rivet with the centre point position of protractor at protractor, cross centre point in the above on ruler and are decorated with an angle index line that is parallel to two long limits of ruler.
Useful technique effect of the present utility model is: easy to operate, and easily-learned easily mastered, practical.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: ruler 1, protractor 2, centre point 3.
The specific embodiment
As shown in Figure 1, the ruler protractor that the utility model proposes, be between the ruler 1 of two coincidences, accompany a protractor 2, protractor 2 is clipped in the termination of ruler 1, and two rulers 1 coincide together, and two rulers 1 and protractor 2 link together with rivet in centre point 3 positions of protractor 2, ruler 1 above the protractor 2 is movable indication bevel protractor, crosses the position of centre point 3 and be decorated with an angle index line that is parallel to 1 two long limits of ruler on this piece ruler 1.
The ruler protractor that the utility model proposes is simple to operation, need only angle numeral in use with your required picture on the index line amount of alignment hornwork on the movable ruler, two crossing rays then just draw on the edge of these two rulers, these two folded angles of ray are exactly the angle that will draw, but the not only setting-out but also can draw the angle of ruler protractor not only can be made student's learning aid but also be teacher's the teaching aid that makes things convenient for.
Claims (1)
1. ruler protractor, it is characterized in that: between the ruler (1) of two coincidences, accompany a protractor (2), protractor (2) is clipped in the termination of ruler (1), two rulers (1) are connected with rivet with centre point (3) position of protractor (2) in protractor (2), and a ruler (1) was gone up centre point (3) and is decorated with an angle index line that is parallel to (1) two long limit of ruler in the above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202075736U CN201573430U (en) | 2009-12-08 | 2009-12-08 | Ruler protractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202075736U CN201573430U (en) | 2009-12-08 | 2009-12-08 | Ruler protractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201573430U true CN201573430U (en) | 2010-09-08 |
Family
ID=42693312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202075736U Expired - Fee Related CN201573430U (en) | 2009-12-08 | 2009-12-08 | Ruler protractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201573430U (en) |
-
2009
- 2009-12-08 CN CN2009202075736U patent/CN201573430U/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: 20100908 Termination date: 20101208 |