JPH0454069U - - Google Patents
Info
- Publication number
- JPH0454069U JPH0454069U JP9298790U JP9298790U JPH0454069U JP H0454069 U JPH0454069 U JP H0454069U JP 9298790 U JP9298790 U JP 9298790U JP 9298790 U JP9298790 U JP 9298790U JP H0454069 U JPH0454069 U JP H0454069U
- Authority
- JP
- Japan
- Prior art keywords
- hub structure
- metal plate
- magnetic metal
- end surface
- stepped part
- 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
- 239000002184 metal Substances 0.000 claims description 5
- 238000000465 moulding Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 2
- 239000011347 resin Substances 0.000 claims 1
- 229920005989 resin Polymers 0.000 claims 1
Description
第１図は本考案を適用した情報デイスクを示す
斜視図、第２図は前記デイスクの要部断面図、第
３図は前記デイスクのハブを示す斜視図、第４図
は前記ハブの断面図、第５図は磁性金属板のイン
サート成形を説明する断面模式図、第６図は従来
例として示す情報デイスクの要部断面図、第７図
は前記デイスクのハブ成形を説明する断面模式図
である。
１……デイスク本体、２……中心孔、３……ハ
ブ、４……筒部、４ａ……突起部、５……薄肉鍔
部、６……磁性金属板、６ｂ……段差部、ｔ……
磁性金属板の厚さ、ｈ……突起部の高さ。
FIG. 1 is a perspective view showing an information disk to which the present invention is applied, FIG. 2 is a cross-sectional view of essential parts of the disk, FIG. 3 is a perspective view showing a hub of the disk, and FIG. 4 is a cross-sectional view of the hub. , FIG. 5 is a schematic cross-sectional view illustrating insert molding of a magnetic metal plate, FIG. 6 is a cross-sectional view of a main part of an information disk shown as a conventional example, and FIG. 7 is a schematic cross-sectional view illustrating hub molding of the disk. be. DESCRIPTION OF SYMBOLS 1...Disk body, 2...Center hole, 3...Hub, 4...Cylinder part, 4a...Protrusion part, 5...Thin flange part, 6...Magnetic metal plate, 6b...Step part, t ……
Thickness of the magnetic metal plate, h...height of the protrusion.
Claims (1)
設けられる磁性金属板を備えて、デイスク本体の
中心孔を中心とする外周面に固定される樹脂製の
情報デイスク用ハブ構造において、前記磁性金属
板の外周部を段差部に形成し、この段差部を前記
環状の内周部片端面側の内部に埋設するとともに
、前記段差部の上部をその略上側折曲縁から上開
き状のテーパーを有し、かつ少なくとも磁性金属
板の板厚以上の高さに形成される突起部により押
え込むようにしたことを特徴とする情報デイスク
用ハブ構造。 In a hub structure for an information disk made of resin, the hub structure includes a magnetic metal plate provided on one end surface of an annular inner circumferential portion by insert molding, and is fixed to an outer circumferential surface centering on a center hole of a disk body. The outer peripheral part of the step part is formed into a stepped part, and the stepped part is buried inside one end surface side of the annular inner peripheral part, and the upper part of the stepped part has a tapered shape that opens upward from the substantially upper bent edge. What is claimed is: 1. A hub structure for an information disk, characterized in that the hub structure is pressed down by a protrusion formed at a height that is at least greater than the thickness of the magnetic metal plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9298790U JPH0454069U (en) | 1990-09-04 | 1990-09-04 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9298790U JPH0454069U (en) | 1990-09-04 | 1990-09-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0454069U true JPH0454069U (en) | 1992-05-08 |
Family
ID=31829857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9298790U Pending JPH0454069U (en) | 1990-09-04 | 1990-09-04 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0454069U (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62192945A (en) * | 1986-02-20 | 1987-08-24 | Sony Corp | Information disk |
| JPS63187482A (en) * | 1987-01-30 | 1988-08-03 | Hitachi Ltd | Optical disk |
| JPS6365181B2 (en) * | 1982-02-04 | 1988-12-14 |
-
1990
- 1990-09-04 JP JP9298790U patent/JPH0454069U/ja active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6365181B2 (en) * | 1982-02-04 | 1988-12-14 | ||
| JPS62192945A (en) * | 1986-02-20 | 1987-08-24 | Sony Corp | Information disk |
| JPS63187482A (en) * | 1987-01-30 | 1988-08-03 | Hitachi Ltd | Optical disk |
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