JPS63129270U - - Google Patents
Info
- Publication number
- JPS63129270U JPS63129270U JP1987017444U JP1744487U JPS63129270U JP S63129270 U JPS63129270 U JP S63129270U JP 1987017444 U JP1987017444 U JP 1987017444U JP 1744487 U JP1744487 U JP 1744487U JP S63129270 U JPS63129270 U JP S63129270U
- Authority
- JP
- Japan
- Prior art keywords
- hub
- optical disk
- center
- annular
- substrate
- 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
- 230000003287 optical effect Effects 0.000 claims description 8
- 239000000758 substrate Substances 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000000696 magnetic material Substances 0.000 claims 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
第１図は本考案の一実施例を示す断面図、第２
図はハブの平面図、第３図はハブの底面図、第４
図は第２図の―線断面図、第５図は従来の光
デイスクの縦断面図、第６図は第５図に示す従来
の光デイスクのスピンドル挿通孔周辺の拡大図で
ある。
１，２…基板、１ａ，２ａ…感光層、３，４…
スペーサ、５…スピンドル挿通孔、１０，１２…
光デイスク、１３…ハブ、１６…円環状磁性体。
Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is a top view of the hub, the third figure is a bottom view of the hub, and the fourth figure is a bottom view of the hub.
The figures are a sectional view taken along the line -- in FIG. 2, FIG. 5 is a vertical sectional view of a conventional optical disk, and FIG. 6 is an enlarged view of the vicinity of the spindle insertion hole of the conventional optical disk shown in FIG. 1, 2... Substrate, 1a, 2a... Photosensitive layer, 3, 4...
Spacer, 5... Spindle insertion hole, 10, 12...
Optical disk, 13... hub, 16... circular magnetic body.
Claims (1)
基板を内周側および外周側の円環状スペーサを介
して接合し、各基板の中心部にハブを取付けてな
る光デイスクであつて、前記ハブは中心部にスピ
ンドル挿通孔を有する円環状構造を有し、かつ該
ハブには磁性体が埋設されていることを特徴とす
る光デイスク。 (2) 前記ハブが基板中心部の円形開口部と嵌合
する凸状部を基板側に有することを特徴とする実
用新案登録請求の範囲第１項に記載の光デイスク
。 (3) 前記磁性体は円環状であり、ハブの軸心と
同心に配設されていることを特徴とする実用新案
登録請求の範囲第１項又は第２項に記載の光デイ
スク。 (4) 円環状磁性体は複数個のピン孔を有するこ
とを特徴とする実用新案登録請求の範囲第３項に
記載の光デイスク。[Claims for Utility Model Registration] (1) Two disk-shaped substrates each having a circular opening in the center are joined via annular spacers on the inner and outer circumferential sides, and a hub is placed in the center of each substrate. What is claimed is: 1. An optical disk mounted on an optical disk, characterized in that the hub has an annular structure having a spindle insertion hole in the center, and a magnetic material is embedded in the hub. (2) The optical disk according to claim 1, wherein the hub has a convex portion on the substrate side that fits into a circular opening in the center of the substrate. (3) The optical disk according to claim 1 or 2, wherein the magnetic body has an annular shape and is arranged concentrically with the axis of the hub. (4) The optical disk according to claim 3, wherein the annular magnetic body has a plurality of pin holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987017444U JPS63129270U (en) | 1987-02-09 | 1987-02-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987017444U JPS63129270U (en) | 1987-02-09 | 1987-02-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63129270U true JPS63129270U (en) | 1988-08-24 |
Family
ID=30810214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987017444U Pending JPS63129270U (en) | 1987-02-09 | 1987-02-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63129270U (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5849379B2 (en) * | 1976-01-19 | 1983-11-04 | 松下電器産業株式会社 | Thermal decomposition method of organic polymer compounds |
| JPS61204842A (en) * | 1985-03-07 | 1986-09-10 | Hitachi Maxell Ltd | Disc-shaped recording medium |
| JPS627679B2 (en) * | 1984-01-31 | 1987-02-18 | Sanyo Electric Co | |
| JPS63152072A (en) * | 1986-12-15 | 1988-06-24 | Fuji Photo Film Co Ltd | Information recording medium |
| JPS63153776A (en) * | 1986-12-17 | 1988-06-27 | Sony Corp | Information disk |
-
1987
- 1987-02-09 JP JP1987017444U patent/JPS63129270U/ja active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5849379B2 (en) * | 1976-01-19 | 1983-11-04 | 松下電器産業株式会社 | Thermal decomposition method of organic polymer compounds |
| JPS627679B2 (en) * | 1984-01-31 | 1987-02-18 | Sanyo Electric Co | |
| JPS61204842A (en) * | 1985-03-07 | 1986-09-10 | Hitachi Maxell Ltd | Disc-shaped recording medium |
| JPS63152072A (en) * | 1986-12-15 | 1988-06-24 | Fuji Photo Film Co Ltd | Information recording medium |
| JPS63153776A (en) * | 1986-12-17 | 1988-06-27 | Sony Corp | Information disk |