CN204236087U - Without dust board - Google Patents
Without dust board Download PDFInfo
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- CN204236087U CN204236087U CN201420635472.XU CN201420635472U CN204236087U CN 204236087 U CN204236087 U CN 204236087U CN 201420635472 U CN201420635472 U CN 201420635472U CN 204236087 U CN204236087 U CN 204236087U
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- polyester film
- substrate
- adhesive layer
- litter
- sheave
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Abstract
The utility model is open a kind of without dust board, comprise the substrate with black upper surface, write pad pasting, upper side frame and lower frame, on the upper surface that described upper side frame and lower frame are installed on substrate respectively and lower surface, this upper side frame and lower frame side is in opposite directions respectively arranged with upper hopper chute, gliding groove, this upper hopper chute, top sheave is embedded with respectively in gliding groove, lower sheave, one litter one end is arranged on top sheave, this litter other end is arranged on lower sheave, the described pad pasting that writes is made up of polyester film and the micropore adhesive layer being coated on polyester film surface, micropore adhesive layer is positioned at polyester film and substrate surface in opposite directions, described polyester film two ends are respectively arranged with first, second bending part, the upper surface of described polyester film and micropore adhesive layer is evenly distributed with several lug bosses.The word that writer writes on clipboard can be carried out auto-erasing by the utility model automatically, improves efficiency of erasing, also greatly improves viewing board angular field of view and definition.
Description
Technical field
The utility model belongs to board technical field, particularly relates to a kind of without dust board.
Background technology
At present, adopt blackboard, chalk as educational aid in teaching, blackboard coats pitch-dark by plank or cement plate surface or is made up of the focussing glass of lining black matrix; At present, blackboard can only be the chalk-writing of primary raw material by lime, and dust is very large, after student and teacher suck, has a strong impact on healthy.A kind of board disclosed in the patent No. 201120429753.6, employs watercolor pencil and imparts knowledge to students, but also needs to carry out wiping, and watercolor pencil price is higher, is also unfavorable for environmental protection, improves use cost.Therefore, be necessary that design is a kind of and automatically the word that writer writes on board can be carried out auto-erasing, effectively improve writer's surrounding environment, and greatly reduce use cost, better meet the needs of writer without dust board, become those skilled in the art make great efforts direction.
Summary of the invention
The utility model provides one without dust board, and the word that writer writes on clipboard can be carried out auto-erasing without dust board by automatically, improves efficiency of erasing, also greatly improves viewing board angular field of view and definition.
For achieving the above object, the technical solution adopted in the utility model is: a kind of without dust board, comprise the substrate with black upper surface, write pad pasting, upper side frame and lower frame, on the upper surface that described upper side frame and lower frame are installed on substrate respectively and lower surface, this upper side frame and lower frame side is in opposite directions respectively arranged with upper hopper chute, gliding groove, this upper hopper chute, top sheave is embedded with respectively in gliding groove, lower sheave, one litter one end is arranged on top sheave, this litter other end is arranged on lower sheave, the described pad pasting that writes is made up of polyester film and the micropore adhesive layer being coated on polyester film surface, micropore adhesive layer is positioned at polyester film and substrate surface in opposite directions, described polyester film two ends are respectively arranged with first, second bending part, described litter is positioned at polyester film or first, below second bending part, the upper surface of described polyester film and micropore adhesive layer is evenly distributed with several lug bosses, thus form at this upper surface the surface that roughness is 2.0 μm ~ 4.0 μm.
The technical scheme improved further in technique scheme is as follows:
1, in such scheme, the thickness of described polyester film is 75 μm-200 μm.
2, in such scheme, first, second bending part described and substrate angle are 10 ° ~ 30 °.
3, in such scheme, described upper surface forms the surface that roughness is 2.0 μm ~ 4.0 μm.
Because technique scheme is used, the utility model compared with prior art has following advantages:
The utility model is without dust board, its structure is simple, and reasonable in design, production cost is low, be convenient to installation and removal, easy scouring, outward appearance is beautiful, and fastness is good, automatically the word that writer writes on clipboard can be carried out auto-erasing, effectively improve writer's surrounding environment, and both greatly reduce use cost, also reduce pollution; Secondly, its polyester film two ends are respectively arranged with first, second bending part, described litter is positioned at below polyester film or first, second bending part, the upper surface of polyester film and micropore adhesive layer is evenly distributed with several lug bosses, both time easy to use, polyester film is peeled off by operator fast, improves efficiency of erasing, thus be 2.0 μm in this upper surface formation roughness--the surface of 4.0 μm, also greatly improve viewing board angular field of view and definition.
Accompanying drawing explanation
Accompanying drawing 1 is that the utility model is without dust writing board structure schematic diagram;
Accompanying drawing 2 is for the utility model is without pad pasting and the litter structural representation of writing in dust board.
In above accompanying drawing: 1, substrate; 2, write pad pasting; 3, upper side frame; 4, lower frame; 5, upper hopper chute; 6, gliding groove; 7, top sheave; 8, lower sheave; 9, litter; 10, polyester film; 11, micropore adhesive layer; 12, the first bending part; 13, the second bending part; 14, lug boss.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment 1: a kind of without dust board, comprise the substrate 1 with black upper surface, write pad pasting 2, upper side frame 3 and lower frame 4, on the upper surface that described upper side frame 3 and lower frame 4 are installed on substrate 1 respectively and lower surface, this upper side frame and lower frame side is in opposite directions respectively arranged with upper hopper chute 5, gliding groove 6, this upper hopper chute 5, top sheave 7 is embedded with respectively in gliding groove 6, lower sheave 8, one litter 9 one end is arranged on top sheave 7, this litter 9 other end is arranged on lower sheave 8, the described pad pasting 2 that writes is made up of polyester film 10 and the micropore adhesive layer 11 being coated on polyester film 10 surface, micropore adhesive layer 11 is positioned at polyester film 10 and substrate 1 surface in opposite directions, described polyester film 10 two ends are respectively arranged with first, second bending part, described litter 9 is positioned at polyester film 10 or the first, second bending part 12, below 13, described polyester film 10 upper surface opposing with micropore adhesive layer 11 is evenly distributed with several lug bosses 14, thus form at this upper surface the surface that roughness is 2.2 μm ~ 2.5 μm.
The thickness of above-mentioned polyester film 10 is 100 μm; First, second bending part 12,13 above-mentioned and substrate 1 angle are 15 °.
Embodiment 2: a kind of without dust board, comprise the substrate 1 with black upper surface, write pad pasting 2, upper side frame 3 and lower frame 4, on the upper surface that described upper side frame 3 and lower frame 4 are installed on substrate 1 respectively and lower surface, this upper side frame and lower frame side is in opposite directions respectively arranged with upper hopper chute 5, gliding groove 6, this upper hopper chute 5, top sheave 7 is embedded with respectively in gliding groove 6, lower sheave 8, one litter 9 one end is arranged on top sheave 7, this litter 9 other end is arranged on lower sheave 8, the described pad pasting 2 that writes is made up of polyester film 10 and the micropore adhesive layer 11 being coated on polyester film 10 surface, micropore adhesive layer 11 is positioned at polyester film 10 and substrate 1 surface in opposite directions, described polyester film 10 two ends are respectively arranged with first, second bending part, described litter 9 is positioned at polyester film 10 or the first, second bending part 12, below 13, described polyester film 10 upper surface opposing with micropore adhesive layer 11 is evenly distributed with several lug bosses 14, thus form at this upper surface the surface that roughness is 3.0 μm ~ 3.5 μm.
The thickness of above-mentioned polyester film 10 is 150 μm; First, second bending part 12,13 above-mentioned and substrate 1 angle are 28 °.
Adopt above-mentioned without dust board time, its structure is simple, and reasonable in design, production cost is low, be convenient to installation and removal, easy scouring, outward appearance is beautiful, and fastness is good, automatically the word that writer writes on clipboard can be carried out auto-erasing, effectively improve writer's surrounding environment, and both greatly reduce use cost, also reduce pollution; Secondly, its polyester film two ends are respectively arranged with first, second bending part, described litter is positioned at below polyester film or first, second bending part, the upper surface of polyester film and micropore adhesive layer is evenly distributed with several lug bosses, both time easy to use, polyester film is peeled off by operator fast, improves efficiency of erasing, thus form at this upper surface the surface that roughness is 2.0 μm ~ 4.0 μm, also greatly improve viewing board angular field of view and definition.
Above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (4)
1. one kind without dust board, it is characterized in that: comprise the substrate (1) with black upper surface, write pad pasting (2), upper side frame (3) and lower frame (4), on the upper surface that described upper side frame (3) and lower frame (4) are installed on substrate (1) respectively and lower surface, this upper side frame and lower frame side is in opposite directions respectively arranged with upper hopper chute (5), gliding groove (6), this upper hopper chute (5), top sheave (7) is embedded with respectively in gliding groove (6), lower sheave (8), one litter (9) one end is arranged on top sheave (7), this litter (9) other end is arranged on lower sheave (8), the described pad pasting that writes (2) by polyester film (10) and be coated on polyester film (10) surface micropore adhesive layer (11) form, micropore adhesive layer (11) is positioned at polyester film (10) and substrate (1) surface in opposite directions, described polyester film (10) two ends are respectively arranged with first, second bending part, described litter (9) is positioned at polyester film (10) or first, second bending part (12, 13) below, the opposing upper surface of described polyester film (10) and micropore adhesive layer (11) is evenly distributed with several lug bosses (14), thus form at this upper surface the surface that roughness is 10 μm ~ 50 μm.
2. according to claim 1 without dust board, it is characterized in that: the thickness of described polyester film (10) is 75 μm-200 μm.
3. according to claim 1 without dust board, it is characterized in that: first, second bending part described (12,13) and substrate (1) angle are 10 ° ~ 30 °.
4. according to claim 1 without dust board, it is characterized in that: described upper surface forms the surface that roughness is 2.0 μm ~ 4.0 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635472.XU CN204236087U (en) | 2014-10-29 | 2014-10-29 | Without dust board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420635472.XU CN204236087U (en) | 2014-10-29 | 2014-10-29 | Without dust board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204236087U true CN204236087U (en) | 2015-04-01 |
Family
ID=52765634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420635472.XU Active CN204236087U (en) | 2014-10-29 | 2014-10-29 | Without dust board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204236087U (en) |
-
2014
- 2014-10-29 CN CN201420635472.XU patent/CN204236087U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 223900 Sihong Province Economic Development Zone, Suqian, West Ocean West Road, No. 6 Patentee after: Jiangsu Stick new materials Polytron Technologies Inc Address before: 215400 Taicang, Suzhou, Taicang Economic Development Zone, Qingdao West Road, No. 11, No. Patentee before: Suzhou Sidike New Material Science & Technology Co., Ltd. |
|
| CP03 | Change of name, title or address |