KR870002244Y1 - A chalk eraser - Google Patents
A chalk eraser Download PDFInfo
- Publication number
- KR870002244Y1 KR870002244Y1 KR2019840011051U KR840011051U KR870002244Y1 KR 870002244 Y1 KR870002244 Y1 KR 870002244Y1 KR 2019840011051 U KR2019840011051 U KR 2019840011051U KR 840011051 U KR840011051 U KR 840011051U KR 870002244 Y1 KR870002244 Y1 KR 870002244Y1
- Authority
- KR
- South Korea
- Prior art keywords
- blackboard
- eraser
- cylindrical roller
- gears
- rollers
- Prior art date
Links
- 238000005498 polishing Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 4
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
Classifications
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- 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
-
- B08B1/12—
-
- B08B1/32—
-
- 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
- B43L1/00—Repeatedly-usable boards or tablets for writing or drawing
- B43L1/04—Blackboards
Abstract
내용 없음.No content.
Description
제1도는 본 고안의 일부 절개정면도.1 is a partial cutaway front view of the present invention.
제2도는 본 고안의 요부 확대 일부단면도.2 is an enlarged partial sectional view of the main portion of the present invention.
제3도는 본 고안의 A-A선 단면도.3 is a cross-sectional view taken along line A-A of the present invention.
제4도는 본 고안의 B-B선 단면도.4 is a cross-sectional view taken along line B-B of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
1 : 흑판 4,4a : 원통로울러 지우개1: blackboard 4,4a: cylindrical roller eraser
6,6a,7,7a : 지지축 14,14b,14c : 브러쉬6,6a, 7,7a: Support shaft 14,14b, 14c: Brush
14a : 안내로울러 15,15a,16,16a : 와이어 로오프14a: 15, 15a, 16, 16a: guide roller off
17,17a,17b,17c : 로울러 18 : 역전모우터17,17a, 17b, 17c: Roller 18: Reverse motor
19 : 와이어드럼 a : 지우개동체19: wire drum a: eraser body
본 고안은 흑판의 상단에서 하단으로 수직되게 설치된 원통로울러형 지우개로 좌우로 왕복이동시키면서 흑판을 닦을 수 있게 한 흑판닦는 장치에 관한 것으로 종래에는 흑판지우개를 손에 쥐고 흑판을 닦았기 때문에 분진이 날라 위생상 불결할뿐 아니라 흑판을 딱는 시간이 많이 걸리는 결점이 있었다.The present invention relates to a blackboard scrubbing device which allows the blackboard to be cleaned while reciprocating from side to side with a cylindrical roller-type eraser installed vertically from the top to the bottom of the blackboard. In addition to sanitary imperfections, there was a time-consuming flaw in the blackboard.
이와같은 점을 감안하여 로울러형 지우개를 칠판을 자동으로 닦는 것이 있었으나 이는 왕복구동 수단이 복잡할 뿐 아니라 분필가루의 처리장치가 없어 분필가루가 비산되어 비위생적인 문제점이 있었다.In view of this, there was a roller-type eraser to automatically wipe the blackboard, but this was not only a complicated reciprocating drive means, but because there was no processing device for chalk powder, there was an unsanitary problem.
본 고안은 이와같은 결점을 적게 하기 위하여 흑판의 전면 상단에서 하단에 이르기까지 수직으로 원통로울러형 지우개를 설치하여 수평으로 이송시키면 원통로울러 지우개의 양단에 축설한 기어가 랙에 치합된 기어의 후방에 착설한 소형기어와 치합되어 원통로울러 지우개가 스스로 회전하면서 이송되므로 흑판의 전면을 닦아주게 되고 원통로울러 지우개에 묻은 분필가루는 양 로울러 사이에 설치한 브러쉬에 의하여 깨끗하게 털려주면 케이스내에서 비산되지 않고 낙하되어 이를 한 곳으로 모아 제거할 수 있게 한 것으로 첨부도면에 의하여 상세히 설명하면 다음과 같다.In order to reduce such drawbacks, the present invention installs a cylindrical roller-type eraser vertically from the top to the bottom of the blackboard, and moves it horizontally. As the roller roller eraser rotates itself by being engaged with the small gear installed, it wipes the front of the blackboard and cleans the chalk powder on the roller roller by brush installed between both rollers. When it is described in detail by the accompanying drawings to be able to remove them in one place as follows.
흑판(1)의 상하단에형의 안내가이드(2)(2a)를 착설하여 전방내측에 랙(3),(3a)을 평행하게 착설하고 원통로울러 지우개(4),(4a)를 축설하고 있는 커버(5)의 양측벽에 착설된 지지축(6),(6a),(7),(7a)에 작은 기어(8),(8a),(9),(9a)를 축설하여 원통로울러 지우개(4),(4a)의 회전축에 착설된 기어(10),(10a),(11),(11a)와 치합시키고 작은 기어(8),(8a),(9),(9a)와 고정축설된 큰 기어(12),(12a),(13),(13a)는 랙(3),(3a)에 치합시킨 통상의 것에 있어서 원통로울러 지우개(4),(4a)의 사이에 브러쉬(14)를 장설하고 그하부에 안내로울러(14a)를 두고 양측으로 브러쉬(14b),(14c)를 착설한 지우개동체(a)를 각 지지축(6),(6a),(7),(7a)의 단부에 와이어로오프(15),(15a),(16),(16a)을 연결하여 흑판(1) 모서리에 축설한 로울러(17),(17a),(17b),(17c)에 각각 걸어 흑판 일측에 장설된 역전모우터(18)의 회전축에 착설된 와이어드럼(19)에 걸어서 일측으로 이동시킬 때는 일측 와이어로오프(15),(15a)는 감기고 타측 와이어로오프(16),(16a)는 풀리어 지우개동체(a)가 좌측으로 이동하면서 흑판(1)의 전면을 자동으로 닦을 수 있게 하여서 된 것이다.In the upper and lower ends of the blackboard (1) Type guide guides (2) and (2a) are installed, and the racks (3) and (3a) are installed parallel to the inside of the front, and both side walls of the cover (5) having the cylindrical roller erasers (4) and (4a) built up. Small gears (8), (8a), (9), and (9a) are built into the support shafts (6), (6a), (7), and (7a) mounted on the cylindrical roller eraser (4), (4a). Large gears 12 engaged with small gears 8, 8a, 9, 9a and geared with gears 10, 10a, 11, 11a mounted on a rotating shaft of ), (12a), (13), and (13a) are provided with a brush (14) between the cylindrical roller erasers (4) and (4a) in a conventional one engaged with the racks (3) and (3a). Eraser body a with guide rollers 14a at the lower side and brushes 14b and 14c installed on both sides is connected to the ends of the supporting shafts 6, 6a, 7 and 7a. It connects the low-off 15, 15a, 16, and 16a to the roller 17, 17a, 17b, and 17c which were laid in the corner of the blackboard 1, respectively, to one side of the blackboard. On the wire drum 19 mounted on the rotating shaft of the reversing motor 18 installed, When moving to the side, one side wire-off 15, 15a is wound and the other wire-off 16, 16a automatically moves the front surface of the blackboard 1 while the pulley eraser a moves to the left. It was made to be clean.
미설명 부호 20,20a는 분진수집통이다.Reference numerals 20 and 20a denote bins.
이상과 같이 된 본 고안의 작용효과를 설명하면 다음과 같다.Referring to the effect of the present invention made as described above are as follows.
흑판(1)의 일측에 착설된 역전모우터(18)를 정상 구동시켜 그 회전축에 착설된 와이어드럼(19)을 우회시키면 지지축(6),(6a)에 연결된 와이어로오프(15),(15a)는 감기면서 지우개동체(a)를 좌측으로 당기게 되고 지지축(7),(7a)에 연결되어 와이어드럼(19)에 감겨있던 와이어로오프(16),(16a)는 풀리면서 지우개동체(a)가 이동될 때 랙(3),(3a)에 치합된 지지축(6),(6a),(7),(7a)에 축설된 큰 기어(12),(12a),(13),(13a)가 회전하면서 작은 기어(8),(8a),(9),(9a)를 회전시켜 원통로울러 지우개의 회전축에 착설된 기어(10),(10a),(11),(11a)를 감속회전시켜 주므로 원통로울러지우개(4),(4a)는 진행방향의 반대방향으로 회전하면서 이동되어 흑판(1)의 전면을 닦아주게 되고 이와같이 흑판(1)의 정면을 닦아 원통로울러 지우개(4)(4a)의 주위에 묻어있는 분필가루는 원통로우러(4),(4a)의 사이에 장설된 브러쉬(14)에 의하여 털어지고 털어진 분진은 커버(5)내에서 낙하되어 하부 안내가이드(2a)내에 모이게 된다.When the reverse motor 18 installed on one side of the black plate 1 is normally driven to bypass the wire drum 19 installed on the rotating shaft, the wire-off 15 connected to the support shafts 6 and 6a, 15a is pulled and the eraser body (a) is pulled to the left side and connected to the support shafts (7) and (7a), the wire-offs (16) and (16a) wound around the wire drum (19) are loosened and the eraser Large gears 12, 12a, (12a) built into the support shafts 6, 6a, 7, and 7a engaged to the racks 3, 3a when the body a is moved. 13, 13a rotates the small gears 8, 8a, 9, 9a and rotates the gears 10, 10a, 11 mounted on the rotary shaft of the eraser. Cylindrical roller eraser (4), (4a) is moved while rotating in the opposite direction of the traveling direction to wipe the front of the blackboard (1), so as to rotate the deceleration (11a) and thus wipe the front of the blackboard (1) in a cylindrical roller Chalk powder buried around the erasers 4 and 4a is placed between the cylindrical rollers 4 and 4a. The dust brushed off by the brush 14 is then dropped in the cover 5 and collected in the lower guide guide 2a.
이와같이 모여진 분진은 브러쉬(14)의 직하방에 착설된 안내로울러(14a)양측에 착설된 브러쉬(14b),(14c)에 의하여 일측으로 이동시켜 분진수집통(20)으로 수집하게 되는 것으로 모우터를 역회전시키면 지지축(7),(7a)에 연결된 와이어로오프(16),(16a)가 와이어드럼(19)에 감기게 되고 반대측은 풀리게 되어 지우개동체(a)가 우측으로 이동하면서 전술한 바와같이 원통로울러 지우개(4),(4a)가 진행방향과 반대방향으로 회전하면서 흑판(1)의 전면을 닦게 되므로 흑판을 자동으로 닦을 수 있는 동시에 커버(5)내에서 분진이 낙하되므로 위생적으로 처리할 수 있고 흑판(1)의 전면을 순간적으로 닦을 수 있어 학생지도에 더욱 전념할 수 있는 이점이 있는 것이다.The dust collected as described above is moved to one side by brushes 14b and 14c installed on both sides of guide rollers 14a installed directly below and under the brush 14, and collected by the dust collecting container 20. When reverse rotation, the wires off (16) and (16a) connected to the support shafts (7) and (7a) are wound on the wire drum (19), and the opposite side is released so that the eraser body (a) moves to the right. As the roller roller eraser (4), (4a) is rotated in the opposite direction to the traveling direction to wipe the front of the blackboard (1), it is possible to automatically wipe the blackboard and at the same time the dust falls in the cover (5) hygienic It can be treated with the instantaneous wiping of the front of the blackboard (1) is an advantage that can be more dedicated to student guidance.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019840011051U KR870002244Y1 (en) | 1984-11-03 | 1984-11-03 | A chalk eraser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019840011051U KR870002244Y1 (en) | 1984-11-03 | 1984-11-03 | A chalk eraser |
Publications (2)
Publication Number | Publication Date |
---|---|
KR860005983U KR860005983U (en) | 1986-06-14 |
KR870002244Y1 true KR870002244Y1 (en) | 1987-06-25 |
Family
ID=70162738
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019840011051U KR870002244Y1 (en) | 1984-11-03 | 1984-11-03 | A chalk eraser |
Country Status (1)
Country | Link |
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KR (1) | KR870002244Y1 (en) |
-
1984
- 1984-11-03 KR KR2019840011051U patent/KR870002244Y1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
KR860005983U (en) | 1986-06-14 |
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