JPS62189188U - - Google Patents
Info
- Publication number
- JPS62189188U JPS62189188U JP7773586U JP7773586U JPS62189188U JP S62189188 U JPS62189188 U JP S62189188U JP 7773586 U JP7773586 U JP 7773586U JP 7773586 U JP7773586 U JP 7773586U JP S62189188 U JPS62189188 U JP S62189188U
- Authority
- JP
- Japan
- Prior art keywords
- synthetic resin
- surface material
- molded
- paper
- utility
- 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
- 239000000463 material Substances 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims 2
- 239000000057 synthetic resin Substances 0.000 claims 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Description
図は本考案の実施例を示し、第１図は黒板用ボ
ードの斜視図、第２図は第１図の―線拡大断
面図、第３図は成形型の断面図、第４図は注入時
の断面説明図である。 １……表材、３……内部空間、４……注入孔、
５……拡散部材、６……成形型。
ードの斜視図、第２図は第１図の―線拡大断
面図、第３図は成形型の断面図、第４図は注入時
の断面説明図である。 １……表材、３……内部空間、４……注入孔、
５……拡散部材、６……成形型。
Claims (1)
- 紙又は通気性を有する合成樹脂フイルムからな
る表材で包囲された板状の内部空間に、硬質発泡
合成樹脂が成形されていることを特徴とする黒板
用ボード。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7773586U JPS62189188U (ja) | 1986-05-22 | 1986-05-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7773586U JPS62189188U (ja) | 1986-05-22 | 1986-05-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62189188U true JPS62189188U (ja) | 1987-12-02 |
Family
ID=30926020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7773586U Pending JPS62189188U (ja) | 1986-05-22 | 1986-05-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62189188U (ja) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4993125A (ja) * | 1972-12-30 | 1974-09-05 |
-
1986
- 1986-05-22 JP JP7773586U patent/JPS62189188U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4993125A (ja) * | 1972-12-30 | 1974-09-05 |