CN2484189Y - New-type hidden-line blackboard - Google Patents
New-type hidden-line blackboard Download PDFInfo
- Publication number
- CN2484189Y CN2484189Y CN 01226491 CN01226491U CN2484189Y CN 2484189 Y CN2484189 Y CN 2484189Y CN 01226491 CN01226491 CN 01226491 CN 01226491 U CN01226491 U CN 01226491U CN 2484189 Y CN2484189 Y CN 2484189Y
- Authority
- CN
- China
- Prior art keywords
- blackboard
- hidden
- hidden line
- hidden lines
- writing
- 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
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to a hidden line blackboard, which consists of a composite back board, equidistant hidden lines, a high molecular material coating. The surface of the blackboard is coated with the greenish black, which is helpful to protect the student sight and ease the asthenopia. The hidden lines are just for teachers to refer to in close range so that the teachers can write in order. After a certain distance is kept away from the blackboard, the hidden lines are invisible due to the visible sensation and the color effects, therefore, the orderly writing on the blackboard is not to be affected. The surface of the blackboard is coated with the high molecular materials, which facilitate to write fast with legible writing and long service life, and is in particular suitable for teaching in school.
Description
The utility model relates to a kind of blackboard for education of writing usefulness, especially for the hidden line blackboard of teaching.
In general, blackboard mainly is made of base plate and face coat.Because make, normal blackboard does not all have ruling.On such blackboard, write picture, be not easy to reach the effect of neat appearance.If draw ruling in advance, can influence the whole structure of plate face literal, also relatively more bothersome simultaneously trouble.
For head it off, Chinese patent CN2235896 discloses a kind of Blackboard with vanished checks, can play the effect of hidden line, owing to be to portray hidden line on coating surface, causes the injustice on blackboard surface, so can influence the fluency of writing.
The purpose of this utility model provides a kind of improved new type blackboard, and it can play the hidden line effect effectively, and keeps the smooth smooth of blackboard surface.
The purpose of this utility model is achieved in that and depicts equidistant ruling on composite bottom board, covers then and goes up a kind of macromolecule material coating, just can become the hidden line blackboard.The blackboard face coat adopts blackish green, helps protecting student eyesight, alleviates visual fatigue.Hidden line only limits to the teacher and closely supplies reference, can help the proper alignment of teacher in writing process, behind distance blackboard certain distance, because the effect of vision and color just be cannot see hidden line, thereby can not be influenced the whole structure of plate face literal.Macromolecule material coating is adopted on the blackboard surface, writes fast, and writing is clear, and long service life is specially adapted to school instruction and uses.
Below in conjunction with accompanying drawing the utility model is further specified:
Accompanying drawing is the front schematic view of hidden line blackboard.
Among the figure: 1 composite bottom board
2 equidistant hidden lines
3 macromolecule material coatings
Claims (1)
- A kind of hidden line blackboard is made up of composite bottom board, equidistant hidden line, macromolecule material coating, and be primarily characterized in that: (1) described blackboard surface is the specific coatings on the backplate surface, and (2) have equidistant hidden line between base plate and coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01226491 CN2484189Y (en) | 2001-06-07 | 2001-06-07 | New-type hidden-line blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01226491 CN2484189Y (en) | 2001-06-07 | 2001-06-07 | New-type hidden-line blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2484189Y true CN2484189Y (en) | 2002-04-03 |
Family
ID=33642119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01226491 Expired - Fee Related CN2484189Y (en) | 2001-06-07 | 2001-06-07 | New-type hidden-line blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2484189Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103251210A (en) * | 2012-02-20 | 2013-08-21 | 苏兴敏 | Eyestrain-relief desk top for office work, study and writing |
-
2001
- 2001-06-07 CN CN 01226491 patent/CN2484189Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103251210A (en) * | 2012-02-20 | 2013-08-21 | 苏兴敏 | Eyestrain-relief desk top for office work, study and writing |
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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 |