CN2147119Y - Multi-function drawing rule - Google Patents
Multi-function drawing rule Download PDFInfo
- Publication number
- CN2147119Y CN2147119Y CN 92209871 CN92209871U CN2147119Y CN 2147119 Y CN2147119 Y CN 2147119Y CN 92209871 CN92209871 CN 92209871 CN 92209871 U CN92209871 U CN 92209871U CN 2147119 Y CN2147119 Y CN 2147119Y
- Authority
- CN
- China
- Prior art keywords
- graduated scale
- protractor
- angle
- ruler
- utility
- 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 - Lifetime
Links
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a student drawing ruler, comprising a graduated scale integrating a protractor and a straightedge as a whole and two right-angle rulers. One side of the straightedge is coincident with the straight side of the protractor. The graduated scale is provided with a convex guide track parallel to the straight side. One end of the right-angle ruler is provided with a slide block fitted to the guide track. Without the trouble that dots are needed to be drawn by a protractor before drawing a line, the drawing ruler can be used to directly draw an arbitrary angle. On the occasion of drawing parallel lines, the slide blocks of the two right-angle rulers are arranged inside the guide track, both ends of a known straight-line being positioned at the point of the identical graduation of the two right-angle rulers, a line can be drawn along the straight side of the graduated scale, and the distance between the parallel lines can be directly read out; the utility model has simplicity and practicability.
Description
The utility model relates to a kind of student and uses drawing rule.
At present the student to be used for the instrument at any angle of picture be semicircle protractor, the one side and the summit at the angle of must drawing in advance during use, the utilization hornwork retouch out on the another side a bit, with ruler this angle of drawing, very loaded down with trivial details again.When making parallel lines, must be with two set squares, be close to one side of another chi with a chi, this chi of parallel sliding, thus draw two parallel lines, during mapping, must live two chis with a hand, as if the changing of the relative positions of being not intended to is arranged, must operate again.
The purpose of this utility model provides a kind of arbitrarily angled and drawing rules parallel lines of directly drawing.
The utility model comprises the graduated scale and two miter squares that are integrated by protractor and ruler, and one side of ruler overlaps with the protractor straight flange, and the protruding guide rail parallel with straight flange arranged on the graduated scale, and an end of miter square is provided with the slide block that cooperates with this guide rail.
Fig. 1 is a graduated scale front view of the present utility model.
Fig. 2 is a graduated scale left view of the present utility model.
Fig. 3 is a miter square front view of the present utility model.
Fig. 4 is the utility model miter square vertical view.
Fig. 5 is the utility model user mode figure.
(scale does not draw among the figure) as shown in the figure, the utility model protractor 1 is combined into one with ruler 2, and its shared straight flange has scale on this straight flange, and guide rail 3 is arranged on the graduated scale.One end of miter square 4 is provided with slide block 5, and the groove 6 that cooperates with guide rail 3 is arranged on the slide block.
When using protractor to do any angle, make the one side and the summit at angle earlier, rotate protractor, its center O point is overlapped with the summit, one side the overlapping of this number of degrees graduation mark and angle on the protractor drawn a straight line from the O point along straight flange and can be made required angle.
As shown in Figure 5, desire is made parallel lines, and known straight line L1 puts into guide rail 3 with miter square top shoe 5, and mobile graduated scale makes straight line L1 two ends be in the identical graduation place (being 4.5cm among the figure) of two miter squares, makes straight line along the graduated scale straight flange, can obtain parallel lines L2.
The utility model is considered widely used 0.5mm pen core in when design, passes through the graduated scale center for making setting-out, so this graduated scale straight flange and its practical center leave the vacancy of 0.25mm.
Use utility model to do any angle, removed first described point from, the back trouble of ruler line, and can directly make required angle, very convenient.When making parallel lines, owing to be to determine according to the reading of miter square, so the changing of the relative positions unintentionally of drawing rule is unlikely, and all that has been achieved is spoiled, operation again.In addition, it can directly obtain the distance between parallel lines.
Claims (2)
1, a kind of multifunctional drawing ruler, it is characterized in that comprising graduated scale and two miter squares 4 that are integrated by protractor 1 and ruler 2, one side of ruler overlaps with the protractor straight flange, the protruding guide rail parallel with this straight flange 3 arranged on the graduated scale, and an end of miter square is provided with the slide block 5 that cooperates with this guide rail.
2, by the described drawing rule of claim 1, it is characterized in that the straight flange of graduated scale and the vacancy that its practical center leaves 0.25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92209871 CN2147119Y (en) | 1992-05-16 | 1992-05-16 | Multi-function drawing rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92209871 CN2147119Y (en) | 1992-05-16 | 1992-05-16 | Multi-function drawing rule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2147119Y true CN2147119Y (en) | 1993-11-24 |
Family
ID=33762882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92209871 Expired - Lifetime CN2147119Y (en) | 1992-05-16 | 1992-05-16 | Multi-function drawing rule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2147119Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106739690A (en) * | 2016-11-22 | 2017-05-31 | 张冬妮 | A kind of Multifunctional math teaching aid |
-
1992
- 1992-05-16 CN CN 92209871 patent/CN2147119Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106739690A (en) * | 2016-11-22 | 2017-05-31 | 张冬妮 | A kind of Multifunctional math teaching aid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |