JPS63112834A - Information recording medium - Google Patents
Information recording mediumInfo
- Publication number
- JPS63112834A JPS63112834A JP61256301A JP25630186A JPS63112834A JP S63112834 A JPS63112834 A JP S63112834A JP 61256301 A JP61256301 A JP 61256301A JP 25630186 A JP25630186 A JP 25630186A JP S63112834 A JPS63112834 A JP S63112834A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- information recording
- protective plate
- slanting face
- manufactured
- 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
- 230000001681 protective effect Effects 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000001746 injection moulding Methods 0.000 abstract description 2
- 238000000465 moulding Methods 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は光ディスク、ＣＤ等の情報を記録した情報記録
媒体に施されているＡＩ等の反射膜の保護力法に閃する
ものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is inspired by a method for protecting the reflective film such as AI applied to information recording media such as optical discs and CDs on which information is recorded.
従来の反射膜の保護方法はスピンナー等を用いて、情報
記録媒体の反射膜上に紫外線硬化タイプの透明樹脂を塗
布し、その後スピンナーを回転させて必要な範囲まで透
明樹脂を拡大させる。A conventional method for protecting a reflective film uses a spinner or the like to apply an ultraviolet-curable transparent resin onto the reflective film of an information recording medium, and then rotates the spinner to expand the transparent resin to the required range.
塗布後、スピンナーから情報記録媒体を取り出して、紫
外腺露光器により透明樹脂を硬化させるというのが一般
的な方式である。After coating, the general method is to take out the information recording medium from the spinner and harden the transparent resin using an ultraviolet exposure device.
〔発明が解決しようとしている問題点〕この種の塗布方
式では一枚々々の情報記録媒体に透明樹脂をディスベン
ザ−等により毎回彷布しなければならず、この工程に要
する時間は相当なものでコストアップ要因の１つになっ
ている。また、スピンリーーの回転により透明樹脂を拡
大させる際に樹脂が均一にイ４くとは限らず、何らかの
原因で樹脂未充填の所ができやすく、品質不良の原囚と
なる。[Problems to be solved by the invention] In this type of coating method, transparent resin must be spread onto each information recording medium using a dispenser or the like each time, and this process takes a considerable amount of time. This is one of the factors that increases costs. Furthermore, when the transparent resin is expanded by the rotation of the spindle, the resin is not necessarily uniformly expanded, and for some reason, there are likely to be areas where the resin is not filled, resulting in poor quality.
情報記録媒体にプレスあるいは成形により製作した反射
膜保護板を付着、固定させるものである。A reflective film protection plate manufactured by pressing or molding is attached and fixed to an information recording medium.
第１図（ａｌ、ｆｂｌに本発明の実施例を示す。 An embodiment of the present invention is shown in FIG. 1 (al, fbl).
最初に情報記録媒体と等価な線膨張係数をもつ樹脂から
なる保護板１をシート状のものをプレスで打ち抜くかあ
るいは射出成形により製作する。First, a protective plate 1 made of a resin having a coefficient of linear expansion equivalent to that of the information recording medium is manufactured by punching out a sheet-like material using a press or by injection molding.
前記保護板１め厚さは０．３ｍｍ以」二あれば充分であ
る。It is sufficient that the thickness of the first protective plate is 0.3 mm or more.
次に保護板１のガイド用斜面２を設けた情報記録媒体３
を成形する。このガイド用斜面２は保護板１に±１ｍｍ
程度の外径寸法のバラツキがあっても情報記録媒体３に
保護板１を密着させるためのものである。Next, the information recording medium 3 provided with the guide slope 2 of the protection plate 1
to form. This guide slope 2 is ±1mm to the protection plate 1.
This is to ensure that the protective plate 1 is in close contact with the information recording medium 3 even if there is some variation in the outer diameter dimension.
次に保護板１を情報記録媒体３のガイド用斜面に沿って
乗せる。Next, the protection plate 1 is placed along the guide slope of the information recording medium 3.
その後、ヒータ４あるいは超音波により熱カシメを数カ
所行ない、保護板１を情報記報媒体３に固定する。Thereafter, the protective plate 1 is fixed to the information recording medium 3 by heat caulking at several places using the heater 4 or ultrasonic waves.
前記の固定は接着剤を数カ所あるいは全周に塗布しても
本発明と同様のものが得られる。The same fixing as in the present invention can be achieved by applying adhesive at several locations or all over the circumference.
以上、どの工程も量産向きであり、仮に月産数十方杖の
製作ということになっても本発明による方式であれば対
応できる。As described above, all of the processes are suitable for mass production, and even if several dozen canes are produced per month, the method according to the present invention can handle the production.
以上のように本発明は情報記録媒体に反射膜保護のため
の保護板を設けるというものであるが、これにより大量
にバッチ処理ができ、コストダウンになる。As described above, the present invention provides a protective plate for protecting a reflective film on an information recording medium, which allows batch processing in large quantities and reduces costs.
第１図（ａｌは本発明の実施例で保護板を固着させる前
の状態の断面図。（ｂ）゛は本発明による保護板を固イ
”１させた状態の断面図。
１・・・保護板
２・・・ガイド用斜面
３・・・情報記録媒体
４・・・ヒータ
５・・・情報記録媒体の反射膜
以 上
、ｒｌ）ノ
ｆ困Figure 1 (Al is a cross-sectional view of the state before the protective plate is fixed according to the embodiment of the present invention. (b) is a cross-sectional view of the state in which the protective plate according to the present invention is fixed. 1... Protective plate 2...Guide slope 3...Information recording medium 4...Heater 5...Reflection film of information recording medium and above, rl) nof trouble
Claims (1)
した情報記録媒体において、該情報記録媒体の記録面の
保護のために前記情報記録媒体と等価な線膨張係数をも
つ樹脂からなる保護板を設けた事を特徴とする情報記録
媒体。 ２）前記の保護板をガイドするための機構を情報記録媒
体に設けた事を特徴とする特許請求の範囲第１項記載の
情報記録媒体。 ３）前記の保護板の外周部において接着剤塗布、もしく
は熱カシメにより情報記録媒体に固定されていることを
特徴とする特許請求の範囲第１項記載の情報記録媒体。[Claims] 1) In an information recording medium in which information is recorded as a pattern of grooves and pits, a resin having a linear expansion coefficient equivalent to that of the information recording medium is used to protect the recording surface of the information recording medium. An information recording medium characterized by being provided with a protective plate consisting of. 2) The information recording medium according to claim 1, characterized in that the information recording medium is provided with a mechanism for guiding the protection plate. 3) The information recording medium according to claim 1, wherein the outer peripheral portion of the protective plate is fixed to the information recording medium by applying an adhesive or by heat caulking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61256301A JPS63112834A (en) | 1986-10-28 | 1986-10-28 | Information recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61256301A JPS63112834A (en) | 1986-10-28 | 1986-10-28 | Information recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63112834A true JPS63112834A (en) | 1988-05-17 |
Family
ID=17290757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61256301A Pending JPS63112834A (en) | 1986-10-28 | 1986-10-28 | Information recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63112834A (en) |
-
1986
- 1986-10-28 JP JP61256301A patent/JPS63112834A/en active Pending
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