CN104691172A - Ruler with commonly used angles - Google Patents
Ruler with commonly used angles Download PDFInfo
- Publication number
- CN104691172A CN104691172A CN201310666599.8A CN201310666599A CN104691172A CN 104691172 A CN104691172 A CN 104691172A CN 201310666599 A CN201310666599 A CN 201310666599A CN 104691172 A CN104691172 A CN 104691172A
- Authority
- CN
- China
- Prior art keywords
- ruler
- commonly used
- common angle
- used angles
- groove
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L13/00—Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L7/00—Straightedges
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The invention provides a ruler with commonly used angles. One side of the ruler has a groove with 30 degrees, 45 degrees, 60 degrees and other commonly used angles; the angle can be drawn by only embedding another ruler or hard card into the groove. According to the ruler, the structure is simple, the commonly used angle can be drawn by using two rulers.
Description
Technical field
The present invention relates to a kind of ruler, specifically a kind of ruler with common angle.
Background technology
Student, in study, draws straight line, draws geometric figure as right angled triangle or circle etc., need to carry with multiple instrument, very inconvenient, particularly to primary and secondary students, and many failing to lay down of instrument in pencil box.Many Combined plotting instruments on market are the same, and complex structure, size be comparatively large, it is also inconvenient to carry.
Summary of the invention
The object of this invention is to provide a kind of ruler with common angle, use more convenient, structure is simple.
The technical solution adopted in the present invention is: in the side of ruler with the common angle grooves such as 30 °, 45 °, 60 °, only needs another ruler or cardboard to be embedded in groove.
The invention has the beneficial effects as follows: structure is simple, and two rulers just can draw common angle.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Shown in Fig. 1: in the side of ruler 1 with the common angle grooves 2 such as 30 °, 45 °, 60 °, only need another ruler or cardboard to be embedded in groove.
Claims (1)
1. the ruler with common angle, comprises ruler body, it is characterized in that: in the side of ruler (1) with the common angle grooves (2) such as 30 °, 45 °, 60 °, only needs another ruler or cardboard to be embedded in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310666599.8A CN104691172A (en) | 2013-12-07 | 2013-12-07 | Ruler with commonly used angles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310666599.8A CN104691172A (en) | 2013-12-07 | 2013-12-07 | Ruler with commonly used angles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104691172A true CN104691172A (en) | 2015-06-10 |
Family
ID=53338886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310666599.8A Pending CN104691172A (en) | 2013-12-07 | 2013-12-07 | Ruler with commonly used angles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104691172A (en) |
-
2013
- 2013-12-07 CN CN201310666599.8A patent/CN104691172A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |