JP2571541B2 - Writing board scoring method - Google Patents
Writing board scoring methodInfo
- Publication number
- JP2571541B2 JP2571541B2 JP6150340A JP15034094A JP2571541B2 JP 2571541 B2 JP2571541 B2 JP 2571541B2 JP 6150340 A JP6150340 A JP 6150340A JP 15034094 A JP15034094 A JP 15034094A JP 2571541 B2 JP2571541 B2 JP 2571541B2
- Authority
- JP
- Japan
- Prior art keywords
- underlayer
- writing board
- surface layer
- laser beam
- color
- 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.)
- Expired - Lifetime
Links
- 238000013077 scoring method Methods 0.000 title 1
- 239000002344 surface layer Substances 0.000 claims description 19
- 239000010410 layer Substances 0.000 claims description 9
- 239000003973 paint Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- 210000003298 dental enamel Anatomy 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、黒板，ホワイトボー
ド，マーカーボード等、チョーク，マーカー等の筆記具
により自由に書いたり消したりすることのできるライテ
イングボードに消えるおそれのない罫線を引く方法に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of drawing a ruled line on a writing board which can be freely written or erased with a writing instrument such as a chalkboard, a markerboard, a blackboard, a whiteboard, a markerboard or the like. It is.
【０００２】[0002]
【従来の技術】黒板等のライテイングボードには周知の
ように表面を硬質ホウロウ仕上げしたもの、或いは表面
に塗料を塗布して仕上げたもの等がある。そして、例え
ば予定表として使用し易くするために図５に例示したよ
うに表面に罫線が引かれ使用されることも多い。2. Description of the Related Art As is well known, a writing board such as a blackboard has a surface finished with hard enamel, or a surface finished by applying a paint to the surface. For example, a ruled line is often drawn on the surface as shown in FIG. 5 in order to facilitate use as a schedule table.
【０００３】[0003]
【発明が解決しようとする課題】ところで従来この黒板
等のライテイングボードに罫線を引くには定規を当てて
塗料を注射針のようなものから注出し手描きするのが一
般的であった。このためきれいな罫線を引くには熟練を
要し手間も掛かるので、作業性が悪く一時に大量の需要
があると期日までに製作できないという問題があった。Conventionally, in order to draw a ruled line on a writing board such as a blackboard, it has been general to apply a ruler and pour out the paint from something like a syringe needle and hand-draw. For this reason, drawing a neat ruled line requires skill and time, so that there is a problem that the workability is poor and if there is a large amount of demand at one time, it cannot be manufactured by the due date.
【０００４】また、塗料による罫線は短期間で傷が付い
たり変色したり、また消えやすく品質が劣るという問題
がある。[0004] Further, there is a problem that the ruled line made of paint is damaged or discolored in a short period of time, and is easily erased, resulting in poor quality.
【０００５】[0005]
【課題を解決するための手段】本発明のライテイングボ
ードの罫引方法は上記課題を解決しようとするもので、
下地層の上に該下地層とは色彩の異なる表層を形成して
なるライテイングボードを形成し、該ライテイングボー
ドの表面に赤外線波長のレーザー光線を当てて該下地層
と表層とを熱溶融により混和させ、表面に下地層の色彩
を描出させるようにしたことを特徴とする。SUMMARY OF THE INVENTION The method of the present invention for scoring a writing board is intended to solve the above-mentioned problems.
A writing board is formed by forming a surface layer different in color from the underlayer on the underlayer, and a laser beam of an infrared wavelength is applied to the surface of the writing board to mix the underlayer and the surface layer by thermal melting. , The color of the underlayer is drawn on the surface.
【０００６】また本発明のライテイングボードは、表面
に赤外線波長のレーザー光線を当てて下地層と表層とを
熱溶融させ表面に下地層の色彩を描出することにより罫
線を引いたことを特徴とする。Further, the writing board of the present invention is characterized in that a ruled line is drawn by irradiating a laser beam of an infrared wavelength to the surface to thermally melt the underlayer and the surface layer and to draw the color of the underlayer on the surface.
【０００７】[0007]
【作用】ライテイングボードの表面に赤外線波長のレー
ザー光線を当て下地層と表層を熱溶融させると共に両層
の溶融物を混和させ、該レーザー光線を所要線引方向に
相対的に移動させることにより下地層の色彩が表面に出
てくっきりとした罫線を描くことができる。A laser beam of an infrared wavelength is applied to the surface of the writing board to thermally melt the underlayer and the surface layer, mix the melts of both layers, and move the laser beam relatively in the required drawing direction to form the underlayer. The colors appear on the surface and you can draw clear ruled lines.
【０００８】[0008]
【実施例】次に本発明の一実施例をホウロウ引きライテ
イングボードについて図１，図２に従い説明する。図１
にこのライテイングボードの断面を示し、図中１は基板
となる鋼板、２は該鋼板１上に例えば黒色系のガラス質
の釉薬を掛けて乾燥，焼成することにより形成した厚さ
０．１ミリ程度のホウロウ下地層、３は該下地層２の上
に例えば白色系のガラス質の釉薬を掛けて乾燥，焼成す
ることに形成した厚さ０．１ミリ程度のホウロウ表層で
ある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS. FIG.
Fig. 1 shows a cross section of the writing board, in which 1 is a steel plate serving as a substrate, and 2 is a 0.1 mm-thickness formed by drying and firing a blackish glassy glaze on the steel plate 1 for example. The enamel underlayer 3 is a surface layer having a thickness of about 0.1 mm, which is formed by, for example, applying a white vitreous glaze on the underlayer 2 and then drying and firing.
【０００９】図２にこうして製作されたホウロウ引きラ
イテイングボード４に罫線を引くためのコンピュータ制
御による罫引装置を示し、図中、５はライテイングボー
ド４をセットする平面テーブル、６は該テーブル５の両
側縁に平行に設けられた固定レール７，７に沿って該テ
ーブル５上をサーボモータの作動により移動するように
設けられた移動レールで、該移動レール６上にはさらに
該移動レール６上に沿ってサーボモータの作動により移
動可能なるように照射ヘッド８が移動台９上に設けられ
ている。FIG. 2 shows a computer-controlled scoring device for scoring the enameled writing board 4 thus manufactured. In the drawing, reference numeral 5 denotes a flat table on which the writing board 4 is set, and 6 denotes a table of the table 5. A moving rail provided on the table 5 along the fixed rails 7 and 7 provided in parallel to both side edges by the operation of the servomotor, on the moving rail 6 and further on the moving rail 6 An irradiation head 8 is provided on a movable base 9 so as to be movable along the axis by the operation of a servomotor.
【００１０】１０はＣＯ2 レーザー，ＹＡＧ（イットリ
ウム，アルミニウム，ガーネット）レーザーまたはＮｄ
（ネオジウム）レーザー等の赤外線域の波長のレーザー
光線を出すレーザー発振器で、該レーザー発振器１０か
ら出たレーザー光線は反射鏡１１，１２により直交方向
に反射されて照射ヘッド８に入光しライテイングボード
４の表面に照射される。Reference numeral 10 denotes a CO 2 laser, a YAG (yttrium, aluminum, garnet) laser or Nd
A laser beam that emits a laser beam having a wavelength in the infrared region, such as a (neodymium) laser. The laser beam emitted from the laser oscillator 10 is reflected by the reflecting mirrors 11 and 12 in the orthogonal direction, enters the irradiation head 8, and Irradiated on the surface.
【００１１】そして該照射ヘッド８を所要線引方向に一
定速度で移動させることにより、該レーザー光線の熱エ
ネルギーにより前記下地層２と表層３を８００〜１２０
０℃に加熱し熱溶融させその溶融状態にて下地層２の釉
薬と表層３の釉薬とが混合し表面に下地層２の黒色系の
色彩の釉薬が表われることにより罫線が抽出されるよう
にする。By moving the irradiation head 8 in a required drawing direction at a constant speed, the thermal energy of the laser beam causes the underlayer 2 and the surface layer 3 to move from 800 to 120.
It is heated to 0 ° C. and thermally melted. In the molten state, the glaze of the underlayer 2 and the glaze of the surface layer 3 are mixed, and the glaze of the black color of the underlayer 2 appears on the surface so that the ruled line is extracted. To
【００１２】なお、照射ヘッド８にはアシストガスとし
て空気またはアルゴン，Ｎ2 ，Ｏ2等のシールドガスが
フレキシブルホース（図示せず）を介して供給されてい
て、該アシストガスを照射ヘッド８の先端からレーザー
光線の照射部に向けて吹き出させている。このためその
アシストガス流が溶融状態の釉薬に当たってその流動を
促し下地層２の釉薬と表層３の釉薬との混合を促進す
る。The irradiation head 8 is supplied with air or a shielding gas such as argon, N 2 , O 2, etc. through a flexible hose (not shown) as an assist gas. It is blown out from the tip toward the laser beam irradiation part. Therefore, the assist gas flow impinges on the glaze in a molten state and promotes the flow, thereby promoting the mixing of the glaze of the base layer 2 and the glaze of the surface layer 3.
【００１３】図３にＣＯ2 レーザーを照射した場合の溶
融状態を断面にて示す。ＣＯ2 レーザーの場合、波長１
０．６μｍ程度でガラス質層への吸収率が１００％近い
ため表層３の表面から加熱され、表面のいくらかは蒸発
飛散しマーキング部分は図示したようにわずかに凹状に
なる。また、照射ヘッド８中にレンズを設けレーザー光
線を照射点に集光させることにより高エネルギー密度の
微小ビームを利用しより良好なマーキングを行うことが
できる。FIG. 3 is a sectional view showing a molten state when a CO 2 laser is irradiated. For CO 2 laser, wavelength 1
Since the absorptivity to the vitreous layer is about 100% at about 0.6 μm, the surface layer 3 is heated from the surface, some of the surface is evaporated and scattered, and the marking portion becomes slightly concave as shown. Further, by providing a lens in the irradiation head 8 and condensing the laser beam at the irradiation point, it is possible to perform better marking using a minute beam having a high energy density.
【００１４】また図４にはＹＡＧレーザー（波長１．０
６μｍ）を照射した場合の溶融状態を示し、このレーザ
ー光線は透明や白色系のガラス質層にはほとんど吸収さ
れず、下地層２との境界または鋼板１上で吸収発熱が起
きるため、内側から溶融が始まりマーキング部分は図示
したように平滑または少し凸状になる。FIG. 4 shows a YAG laser (wavelength 1.0).
6 μm), the laser beam is hardly absorbed by the transparent or white vitreous layer, and is absorbed and generated on the boundary with the underlayer 2 or on the steel sheet 1. Starts, and the marking portion becomes smooth or slightly convex as shown in the figure.
【００１５】照射ヘッド８の移動方向，移動速度は上記
各サーボモータをコンピュータ制御することによりコン
トロールされ、所要の罫線を自動的に描くことができ
る。また、罫線の太さはレーザー光線の照射位置を少し
宛幅方向にずらしてに繰り返し平行線を引くようにする
ことで自由に決定できる。The moving direction and moving speed of the irradiating head 8 are controlled by computer control of each of the above-mentioned servomotors, so that required ruled lines can be automatically drawn. The thickness of the ruled line can be freely determined by repeatedly drawing parallel lines while slightly shifting the irradiation position of the laser beam in the width direction.
【００１６】以上の実施例はホウロウ引きライテイング
ボードについて説明したが、表面に色彩を異にする例え
ばウレタン系の塗料を２層に塗布して下地層と表面とを
形成してなる塗装ライテイングボードについても本発明
を適用することができる。その場合もレーザー光線によ
り下地層の塗料を表層の塗膜とを局部的に加熱，溶融さ
せ色彩の異なる塗料どうしを混和させることにより、表
面に下地層の色彩を抽出させ線引きすることができる。
なお、この実施例は罫引について説明したが、照射ヘッ
ド８とライテイングボード４との相対運動により罫線の
場合と同様に任意の文字，図形等を描くことができる。In the above embodiments, the enameled writing board has been described. However, a coated writing board formed by applying two layers of, for example, urethane-based paints having different colors on the surface to form an underlayer and a surface is provided. The present invention can also be applied to the present invention. Also in this case, the color of the undercoat layer can be extracted and drawn on the surface by locally heating and melting the paint of the undercoat layer and the coating film of the surface layer by a laser beam to mix paints having different colors.
Although this embodiment has been described with respect to the ruled line, any character, figure, or the like can be drawn by the relative movement between the irradiation head 8 and the writing board 4 as in the case of the ruled line.
【００１７】[0017]
【発明の効果】このように本発明では、レーザー光線に
より熱エネルギーを一点に集中させ下地層と表層を溶融
させこれを混和させることにより下地層の色彩を表面に
抽出させ所要の罫線を引くことができる。このため手書
きのように特別な技能を要することなく、きれいな罫線
を高能率で引くことができる。そして引かれた罫線は下
地層の色彩に基因するものであるので、消えることはな
く退色のおそれも少なく高品質であるなど顕著な効果が
ある。As described above, according to the present invention, it is possible to extract the color of the underlayer on the surface and draw the required ruled lines by concentrating the heat energy at one point by the laser beam, melting the underlayer and the surface layer and mixing them. it can. For this reason, a beautiful ruled line can be drawn with high efficiency without requiring special skills unlike handwriting. Since the drawn ruled line is based on the color of the underlayer, there is a remarkable effect that the ruled line does not disappear, is less likely to be faded, and has high quality.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明に係るライテイングボードの罫引方法の
一実施例を示した斜視図。FIG. 1 is a perspective view showing an embodiment of a writing board crease method according to the present invention.
【図２】本発明の一実施例を示す罫引装置の平面図。FIG. 2 is a plan view of a ruler according to an embodiment of the present invention.
【図３】ＣＯ2 レーザー照射時のライテイングボードの
断面図。FIG. 3 is a cross-sectional view of the writing board when a CO 2 laser is irradiated.
【図４】ＹＡＧレーザー照射時のライテイングボードの
断面図。FIG. 4 is a cross-sectional view of the writing board during irradiation with a YAG laser.
【図５】罫引ライテイングボードの一例を示した正面
図。FIG. 5 is a front view showing an example of a scored writing board.
１ 鋼板 ２ 下地層 ３ 表層 ４ ライテイングボード ８ 照射ヘッド DESCRIPTION OF SYMBOLS 1 Steel plate 2 Underlayer 3 Surface layer 4 Writing board 8 Irradiation head
Claims (6)
表層を形成してなるライテイングボードを形成し、該ラ
イテイングボードの表面に赤外線波長のレーザー光線を
当てて該下地層と表層とを熱溶融により混和させ、表面
に下地層の色彩を描出させるようにしたことを特徴とす
るライテイングボードの罫引方法。1. A writing board having a surface layer different in color from the underlayer is formed on the underlayer, and a laser beam having an infrared wavelength is applied to the surface of the writing board to separate the underlayer and the surface layer. A scribing method for a writing board, wherein the scoring is performed by heat melting so that the color of the underlayer is drawn on the surface.
１に記載のライテイングボードの罫引方法。2. The method according to claim 1, wherein the underlayer and the surface layer are enamel layers.
１に記載のライテイングボードの罫引方法。3. The method according to claim 1, wherein the underlayer and the surface layer are paint films.
て下地層と表層とを熱溶融させ表面に下地層の色彩を描
出することにより罫線を引いたことを特徴とするライテ
イングボード。4. A writing board characterized in that a ruled line is drawn by irradiating a laser beam having an infrared wavelength to the surface to thermally fuse the underlayer and the surface layer to draw the color of the underlayer on the surface.
４に記載のライテイングボード。5. The writing board according to claim 4, wherein the underlayer and the surface layer are enamel layers.
４に記載のライテイングボード。6. The writing board according to claim 4, wherein the underlayer and the surface layer are paint films.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6150340A JP2571541B2 (en) | 1994-06-07 | 1994-06-07 | Writing board scoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6150340A JP2571541B2 (en) | 1994-06-07 | 1994-06-07 | Writing board scoring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07329489A JPH07329489A (en) | 1995-12-19 |
| JP2571541B2 true JP2571541B2 (en) | 1997-01-16 |
Family
ID=15494863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6150340A Expired - Lifetime JP2571541B2 (en) | 1994-06-07 | 1994-06-07 | Writing board scoring method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2571541B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2358835B (en) * | 1998-07-21 | 2002-12-04 | Genaro Aldrete-Frances | Writing board with reference lines which are invisible from a distance and fabrication process |
| JP2013086503A (en) * | 2011-10-24 | 2013-05-13 | Umajirushi:Kk | Multicolor line-ruling method of writing board |
-
1994
- 1994-06-07 JP JP6150340A patent/JP2571541B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07329489A (en) | 1995-12-19 |
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