CN2923361Y - Corner-free pupil ruler - Google Patents
Corner-free pupil ruler Download PDFInfo
- Publication number
- CN2923361Y CN2923361Y CN 200620072171 CN200620072171U CN2923361Y CN 2923361 Y CN2923361 Y CN 2923361Y CN 200620072171 CN200620072171 CN 200620072171 CN 200620072171 U CN200620072171 U CN 200620072171U CN 2923361 Y CN2923361 Y CN 2923361Y
- Authority
- CN
- China
- Prior art keywords
- student
- chi
- ruler
- health
- 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
Links
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a hornless student ruler that can avoid from stabbing the body of the students. The utility model is composed of a hornless cambered edge at the two ends of the student ruler is arranged at the two ends of the student ruler, which is characterized in that: the hornless cambered edge at the two ends of the student ruler is arranged at the two ends of the student ruler. The two ends of the student ruler are designed into a hornless cambered edge so as not to stab the body of the students and then to guarantee the safety of the students.
Description
Affiliated technical field
The utility model relates to a kind of student who does not have to stab the angle of student's health and uses chi.
Background technology
At present, known student has following several with chi, a kind of set square angle, a kind of protractor, a kind of student uses ruler, a kind ofly uses student's chi more, and they all have a common shortcoming that the angle that can stab student's health is all arranged, since there are many students that hyperactivity is arranged, annual because the incident that the student stabs student's health with chi is a lot.
Summary of the invention
With chi the deficiency at the angle that can stab student's health is arranged in order to overcome existing student, the utility model provides a kind of acerous student to use chi, and student's safety has been guaranteed at the angle that this student's chi owing to do not have can be stabbed student's health.
The technical scheme that its technical problem that solves the utility model adopts is that the student is designed to not have to stab the arc limit at the angle of student's health with two of chi, makes the student can stab the angle of student's health with the chi neither one, thereby has guaranteed student's safety.
Described acerous arc limit refers to that the student can stab the arc limit at the angle of student's health with the chi neither one.
Described acerous student adapts to various students with chi and uses chi.
The beneficial effects of the utility model are, because the student is designed to not have to stab the arc limit at the angle of student's health with two of chi, makes the student can stab the angle of student's health with the chi neither one, thereby have guaranteed student's safety.Since simple in structure, easy to use, be worthy to be popularized.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is a structural representation of the present utility model.
Among the figure, 1 student uses chi, and 2 students use the acerous arc limit at two of chi.
The specific embodiment
In the drawings, the student uses two of chi 1 the student with the acerous arc limit 2 at two of chi.
Claims (1)
1 one kinds of acerous students use chi, and it is made of with two of chi the student with the acerous arc limit at two of chi the student, it is characterized in that the student uses two of chi the student with the acerous arc limit at two of chi.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072171 CN2923361Y (en) | 2006-03-29 | 2006-03-29 | Corner-free pupil ruler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620072171 CN2923361Y (en) | 2006-03-29 | 2006-03-29 | Corner-free pupil ruler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2923361Y true CN2923361Y (en) | 2007-07-18 |
Family
ID=38259787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620072171 Expired - Fee Related CN2923361Y (en) | 2006-03-29 | 2006-03-29 | Corner-free pupil ruler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2923361Y (en) |
-
2006
- 2006-03-29 CN CN 200620072171 patent/CN2923361Y/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 |