CN1097692A - Multi-colour blackboard - Google Patents
Multi-colour blackboard Download PDFInfo
- Publication number
- CN1097692A CN1097692A CN 93108801 CN93108801A CN1097692A CN 1097692 A CN1097692 A CN 1097692A CN 93108801 CN93108801 CN 93108801 CN 93108801 A CN93108801 A CN 93108801A CN 1097692 A CN1097692 A CN 1097692A
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- CN
- China
- Prior art keywords
- magnetic
- color
- post
- plate face
- 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.)
- Pending
Links
- 239000003086 colorant Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 5
- 239000000084 colloidal system Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- PLXMOAALOJOTIY-FPTXNFDTSA-N Aesculin Natural products OC[C@@H]1[C@@H](O)[C@H](O)[C@@H](O)[C@H](O)[C@H]1Oc2cc3C=CC(=O)Oc3cc2O PLXMOAALOJOTIY-FPTXNFDTSA-N 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 2
- 230000005389 magnetism Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 3
- 208000003464 asthenopia Diseases 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 230000003458 metachromatic effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000012780 transparent material Substances 0.000 description 3
- 230000001413 cellular effect Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920005479 Lucite® Polymers 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 208000007578 phototoxic dermatitis Diseases 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
The present invention relates to a dustless multicolor electrooptical blackboard which is written by using magnetic pen. The teaching aid is mainly used for teaching and can also be used for recording events, advertisements or demonstration. It has the advantages of no dust, clear and bright character, dark green background, multicolor character, less visual fatigue and obvious contrast. Especially, it has the advantages of whole board, arbitrary individual change and capability of writing more than six colors on the same board.
Description
The present invention is that a kind of polychrome does not have the blackboard for education that dust uses economy.Also can be used for advertisement, propaganda, keep record, keep the score etc..
Existing chalk blackboard, the health of flying upward harmful people of dust.Though existing magnetic, photosensitive, electronic blackboard are write the convenient hardship that can avoid chalk again to people, material source is wide, cost is high, manufacture difficulty greatly and difficulty popularize.
Existing by retrieval technical data, existing magnet board has, and the magnetic powder tracing is write and is: A. United States Patent (USP) NO2689601 is disclosed to be equipped with tangible little magnetic and lightweight nonmagnetic powder in the thin case of the transparent no magnetic in surface.B. the disclosed wainscot White-opalescent of Chinese patent CN1040172A is uniform-distribution with little space in it, and black iron powder panel water white transparency is arranged in the lattice.Magnetic pen is write on panel, and black iron powder is drawn onto and shows writing in the panel in the little space.C. Chinese patent CN2042798 ü is made up of plate face, cellular board, base plate, and the plate face is a water white transparency, and cellular board is that each aperture is not connected, and aperture d＜1mm, and the degree of depth is 5mm.In iron powder is arranged, base plate is opaque, the organic material that reflectance is little.D. US Patent No 4143472 disclosed magnetic display boards.Form by two substrates.Wherein have one to be transparent, the filling value is greater than 5 dyne 1cm between the substrate
2Dispersion liquid.Dispersion liquid is by meticulous magnetic micro mist, coloring medium, and dispersant and particulate thickener are formed.Polynary network is arranged between the substrate, form a plurality of solely main separately display units.E. the complex of the Japan Patent disclosed magnetic of clear 6 ü-115497 or dielectric substance and transparent material is burying the plastochondria of magnetic or dielectric substance in the transparent material, the different magnetic poles of plastochondria is caught different colors.Powder granularity is below 3mm, and preferably below 0.1mm, powder can move freely, gram gas, liquid or solid powder in the space of reversing.Transparent material is that permanet magnet is made orbicule.
Existing magnetic lamellar body tracing clipboard is: A. Chinese patent GG86.202524 is disclosed by transparent panel, and the plate inner face studs with the minute bubbles of V font, and magnetic sheet is arranged in the ditch.Behind the plate face artificial light sources is arranged, when the magnetic pen contact plate, the magnetic sheet in the vesicle is inhaled to a side, and light forms optical track from base plate directive plate face.B. Chinese patent CN1047829A is open, is by grid-like trap.And the light source behind the plate forms, and available magnetic pen or hard-tipped pen, soft pen are write, and the portable plate upset that scribbles color, roll, displacement and reduction be with regard to changeable colour, change light and show and erase writing.C. US Patent No 3322481 disclosed a kind of liquid liquid that include the suspension magnetic sheet make these magnetic sheets reset by field action, are orientated consistent and the formation demonstration.
Existing magnetic cylinder tracing clipboard is: A. US Patent No 3103751 disclosed no chalk writing boards; Metal needle places between hard transparent header board that nonmagnetic substance makes and the back plate with many holes, and magnetic pen makes metal needle slide into observable place from invisible place.Show thereby form.
Above clipboard has following shortcoming: the word color that show (1) is single, on same plate face a kind of color can only be arranged.Complicated especially just have two kinds of colors, makes difficulty.As clear 6 ü-116497 of Japan Patent, the magnet of powder grain below 0.1mm, different magnetic poles is dyed different colours, and difficulty is very big.(2) writing is not obvious, and what have has used electric light.But through experiment, white light and coloured illumination on glassly all can not form writing clearly to transparent.(3) manufacture difficulty is big.(4) cost height.(5) can not local change, wiping.
The objective of the invention is to by concrete and effective measures overcome above-mentioned many disadvantages, can show on a kind of background of color that seven kinds of color writings can carry out the local polychrome magnetic electric lighted blackboard of wiping examination simultaneously again thereby make.
The present invention is made of framework, plate face, display unit, color-changing device illuminating lamp five parts.Lettering pen is that retentive material is processed into.
Framework is an alloy material or wooden, and size is decided as required.The plate face is colloid transparent plastic or lucite, be built-in with display ball (or post) and constitute display unit, the color-changing device framework is transparent plastic or glass, groove is arranged above, put metachromatic corpuscle in interior, have three layers, when magnetic pen vertically acts on the blackboard surface, because be subjected to the influence of magnetic line of force direction, display column's (or ball) and variable color post (or ball) deflect, thereby show coloured writing, various combination by photochromic layer again, thereby reach the purpose that shows word of all kinds since after light source is arranged, so writing is a photosensitiveness.
Below with reference to accompanying drawing invention is described in further detail:
Fig. 1 is a front elevation of the present invention.
Fig. 2 is a side cut away view.
Fig. 3 is post front, demonstration garden and side view.
Fig. 4 is post front, variable color garden and side view.
Fig. 5 is the side enlarged drawing of variable color post.
According to the figure: shown little garden post and place translot in the plate face by permitting look, show that little garden post is to be enclosed in the garden cylindricality (or ball) that forms in the transparency material by the filament 19 that soft magnetic material is made, scribbling transparency material under one deck on the maximum planes at wire place, A is a front elevation, and B is a side view.The size of display ball is decided as required, has on it for the knob 4 that selects look, and the lead of knob 4 links to each other with the buck device of color-changing device.Color-changing device 7 is formed by 12,13,14 3 layers.It represents orchid, red, yellow respectively.The structure and the display ball of metachromatic corpuscle are basic identical; What they were different is that demonstration garden post has the opaque material of one deck, and variable color garden post has one deck to have the transparent colloid of color, and C is its front elevation, and D is its side view.Figure 20 is the positive color of being seen, 21 is wire, and magnet (blackboard eraser) 17 is arranged behind the color-changing device, and illuminating lamp 15 and bonnet 16 are arranged thereafter.
Operation principle of the present invention is: when magnetic pen 5 vertically acts on the plate face, because the effect of magnetic force silk direction, show in the garden post and become 8 state by 9, thereby allow the light of back by showing writing.The post of variable color simultaneously also deflects, and by control air pressure, certain one deck or two layers of metachromatic corpuscle is not rotated, and this one deck that does not rotate so or two layers color promptly are the writing colors.The control metachromatic corpuscle is to make TR thin rubber 24 be close to variable color post 22 by the air pressure that reduces cell 23, makes it not rotate under the effect of the magnetic line of force, thereby achieves the goal.Conversion writing color is by knob 4, changes the air pressure of color device.By the combination of these three layers of color-changing devices, red, yellow, blue, green, purple, orange, white seven kinds of colors thereby become.Magnetic wipes 17 up and down or horizontally slip and get final product during the whole board wiper word, when wiping word individually, is parallel to a mistake slip and gets final product with writing magnetic pen.
Claims (4)
- (1) the dustless electric lighted blackboard of a kind of polychrome, be to place the interior translot of plate face by the little garden of many demonstrations post (or ball) 3, constitute display unit, little garden post is to be enclosed in the transparency material by the filament 19 that soft magnetic material is made to form, and scribbles the opaque material of one deck on the maximum planes at wire place; Place three layers of color-changing device behind the display board by the little garden of many variable colors post (or ball), constitute color-changing device, the variable color post is enclosed in the transparency material by soft magnetism filament 21 and forms, and on the maximum planes at wire place, scribble the painted colloidal substance of layer of transparent, also has frame 1 in addition, plate face 2, knob 4, magnetic wipes 17, magnetic pen 5, lamp 15 is formed, it is characterized in that under lettering pen (magnetic pen) effect, owing to be subjected to magnetic line of force aspect effect, display column deflects and shows writing, the variable color post deflects and Show Color, under the effect of light 15, the writing of band look impinged upon realize on the plate face of colloid.
- (2) as described in the claim (1), it is characterized in that display column and variable color post are rotated by the influence of magnetic pen magnetic line of force direction, it is also like this that magnetic is wiped 17 principles.
- (3) as described in the claim (1), it is characterized in that, change the writing color and be variable color post by three layers of color-changing device and rotate with the combination of not rotating and realize.
- (4) as described in the claim (1), it is characterized in that plate face 2 is that the transparent colloid material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93108801 CN1097692A (en) | 1993-07-20 | 1993-07-20 | Multi-colour blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93108801 CN1097692A (en) | 1993-07-20 | 1993-07-20 | Multi-colour blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1097692A true CN1097692A (en) | 1995-01-25 |
Family
ID=4987319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93108801 Pending CN1097692A (en) | 1993-07-20 | 1993-07-20 | Multi-colour blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1097692A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273768A (en) * | 2013-06-13 | 2013-09-04 | 李家海 | Environmental protection and energy saving teaching word pad |
| CN108583079A (en) * | 2018-04-28 | 2018-09-28 | 重庆大学 | A kind of polychrome magnet board freely wiped |
-
1993
- 1993-07-20 CN CN 93108801 patent/CN1097692A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273768A (en) * | 2013-06-13 | 2013-09-04 | 李家海 | Environmental protection and energy saving teaching word pad |
| CN108583079A (en) * | 2018-04-28 | 2018-09-28 | 重庆大学 | A kind of polychrome magnet board freely wiped |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |