JPS6198278U - - Google Patents
Info
- Publication number
- JPS6198278U JPS6198278U JP18059284U JP18059284U JPS6198278U JP S6198278 U JPS6198278 U JP S6198278U JP 18059284 U JP18059284 U JP 18059284U JP 18059284 U JP18059284 U JP 18059284U JP S6198278 U JPS6198278 U JP S6198278U
- Authority
- JP
- Japan
- Prior art keywords
- hub
- concave portion
- magnetic disk
- convex portion
- case body
- 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
- 238000003466 welding Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
Description
第１図は本考案のデイスクカセツトの上ハブ、
磁気デイスクおよび下ハブを示す外観図、第２図
は第１図に示すデイスクカセツトの一部縦断面図
、第３図は上ハブの凸部を下ハブの凹部底面に当
接した状態を示す縦断面図、第４図は上ハブの凸
部を下ハブの凹部に溶着した状態を示す縦断面図
、第５図は従来のデイスクカセツトを示す上面図
、第６図は第５図の横断面図、第７図は第６図の
上ハブへの下ハブのかしめ方法を示す説明図、第
８図は磁気デイスクの内周面に形成される粗面加
工を示す説明図、第９図は磁気デイスクと上ハブ
および下ハブとの間に両面テープを介挿した状態
を示す説明図である。
１……ケース本体、２……上ケース、３……下
ケース、４……磁気デイスク、５……上ハブ、６
……下ハブ、１８……貫通穴、２０……凹部、２
２……凸部。
Figure 1 shows the upper hub of the disk cassette of the present invention.
An external view showing the magnetic disk and the lower hub, Fig. 2 is a partial vertical sectional view of the disk cassette shown in Fig. 1, and Fig. 3 shows the state in which the convex part of the upper hub is in contact with the bottom of the recessed part of the lower hub. 4 is a vertical sectional view showing the convex portion of the upper hub welded to the recessed portion of the lower hub, FIG. 5 is a top view showing a conventional disk cassette, and FIG. 6 is a cross-sectional view of FIG. 5. 7 is an explanatory diagram showing the method of caulking the lower hub to the upper hub in Fig. 6, Fig. 8 is an explanatory diagram showing the roughening process formed on the inner peripheral surface of the magnetic disk, and Fig. 9 is a top view. FIG. 2 is an explanatory diagram showing a state in which double-sided tape is inserted between a magnetic disk and an upper hub and a lower hub. 1...Case body, 2...Upper case, 3...Lower case, 4...Magnetic disk, 5...Upper hub, 6
... lower hub, 18 ... through hole, 20 ... recess, 2
2...Protrusion.
Claims (1)
体と、このケース本体に収容される磁気デイスク
と、前記ケース本体に回転自在に装着され前記磁
気デイスクを挾持する上ハブおよび下ハブとを備
えたデイスクカセツトにおいて、前記上ハブの下
面に凸部または凹部を形成するとともに前記下ハ
ブの上面の前記凸部または凹部にそれぞれ対応す
る位置に凹部または凸部を形成し、前記磁気デイ
スクの前記凸部に対応する位置にこの凸部を挿入
する貫通穴を形成したことを特徴とするデイスク
カセツト。 (2) 凸部を凹部内において熱溶着してなること
を特徴とする特許請求の範囲第１項記載のデイス
クカセツト。 (3) 前記熱溶着手段は、超音波溶着であること
を特徴とする実用新案登録請求の範囲第２項記載
のデイスクカセツト。[Claims for Utility Model Registration] (1) A case body consisting of an upper case and a lower case, a magnetic disk housed in the case body, and an upper hub rotatably attached to the case body and holding the magnetic disk. and a lower hub, wherein a convex portion or a concave portion is formed on the lower surface of the upper hub, and a concave portion or a convex portion is formed on the upper surface of the lower hub at a position corresponding to the convex portion or the concave portion, respectively; A disk cassette characterized in that a through hole into which the convex part is inserted is formed at a position corresponding to the convex part of the magnetic disk. (2) The disk cassette according to claim 1, wherein the convex portion is heat-welded within the concave portion. (3) The disk cassette according to claim 2, wherein the thermal welding means is ultrasonic welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18059284U JPS6198278U (en) | 1984-11-28 | 1984-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18059284U JPS6198278U (en) | 1984-11-28 | 1984-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6198278U true JPS6198278U (en) | 1986-06-24 |
Family
ID=30738145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18059284U Pending JPS6198278U (en) | 1984-11-28 | 1984-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6198278U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63209083A (en) * | 1987-02-26 | 1988-08-30 | Sony Corp | Manufacturing of disk cartridge |
-
1984
- 1984-11-28 JP JP18059284U patent/JPS6198278U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63209083A (en) * | 1987-02-26 | 1988-08-30 | Sony Corp | Manufacturing of disk cartridge |
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