KR20180129032A - null - Google Patents
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- Publication number
- KR20180129032A KR20180129032A KR1020170064420A KR20170064420A KR20180129032A KR 20180129032 A KR20180129032 A KR 20180129032A KR 1020170064420 A KR1020170064420 A KR 1020170064420A KR 20170064420 A KR20170064420 A KR 20170064420A KR 20180129032 A KR20180129032 A KR 20180129032A
- Authority
- KR
- South Korea
- Prior art keywords
- eraser
- sponge
- water
- null
- cloth
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
- B43L21/00—Blackboard or slate cleaning devices
- B43L21/02—Blackboard or slate cleaning devices with means for absorbing the chalk dust
Landscapes
- Drawing Aids And Blackboards (AREA)
Abstract
Description
본 발명은 칠판 지우개에 관한 것이다.The present invention relates to a blackboard eraser.
칠판에 분필로 글씨를 써 놓고 시간이 지나면 분필이 말라 잘 지워지질 않는다. 그럴 때마다 지우개에 물을 뭍이거나 칠판에 물을 뿌려주어야 한다. 그러려면 수업 도중에 물을 가지러 가야한다.After writing the chalk on the chalkboard, the chalk will not dry out over time. Every time you do this, you should put water on the eraser or water on the chalkboard. To do that, I have to go get water in class.
수업 도중에 물이 없어서 화장실에 가는 일이 없도록 한다.Do not go to the bathroom because there is no water during class.
지우개 안에 스펀지를 넣어서 물을 채워 놓으면 그 스펀지가 흡수한 물로 지우개에 물을 공급해주도록 한다.If you put a sponge inside the eraser and fill it with water, you should supply water to the eraser with the water absorbed by the sponge.
물을 한번 채워 놓으면 따로 채우러 가지 않아도 된다.Once you have filled the water, you do not have to fill it out separately.
도1은 스펀지 칠판지우개의 구성을 나타낸 사시도이다.1 is a perspective view showing a configuration of a sponge board eraser.
스펀지에 물을 채워 넣으면 칠판을 닦으려고 지우개로 칠판에 압력을 가한다. 그러면 스펀지에서 물이 나와 지우개에 걸레 부분에 물을 공급해서 칠판을 수월하게 닦을 수 있도록 한다.When the sponge is filled with water, pressure the chalkboard with an eraser to wipe the chalkboard. The water will then come out of the sponge and allow the eraser to supply water to the mop so that the board can be wiped clean.
10 : 스펀지 20 : 걸레 30 : 몸체10: sponge 20: mop 30: body
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020170064420A KR20180129032A (en) | 2017-05-25 | 2017-05-25 | null |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020170064420A KR20180129032A (en) | 2017-05-25 | 2017-05-25 | null |
Publications (1)
Publication Number | Publication Date |
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KR20180129032A true KR20180129032A (en) | 2018-12-05 |
Family
ID=64744106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020170064420A KR20180129032A (en) | 2017-05-25 | 2017-05-25 | null |
Country Status (1)
Country | Link |
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KR (1) | KR20180129032A (en) |
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2017
- 2017-05-25 KR KR1020170064420A patent/KR20180129032A/en unknown
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