JPS63164860U - - Google Patents
Info
- Publication number
- JPS63164860U JPS63164860U JP4614288U JP4614288U JPS63164860U JP S63164860 U JPS63164860 U JP S63164860U JP 4614288 U JP4614288 U JP 4614288U JP 4614288 U JP4614288 U JP 4614288U JP S63164860 U JPS63164860 U JP S63164860U
- Authority
- JP
- Japan
- Prior art keywords
- center
- recording medium
- engagement tube
- magnetic recording
- substantially rectangular
- 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
Description
第１図乃至第６図は本考案磁気記録媒体を磁気
デイスクに適用した実施の一例を示すもので、第
１図は要部の斜視図、第２図はバーリング加工時
の状態を示す要部の斜視図、第３図は一部切欠平
面図、第４図は第３図の―線に沿う断面図、
第５図は分解斜視図、第６図乃至第９図は従来の
磁気記録媒体の一例を示すもので、第６図は要部
の斜視図、第７図はバーリング加工時の状態を示
す要部の斜視図、第８図は平面図、第９図は第８
図の―線に沿う断面図である。
符号の説明、１……磁気記録媒体、３……磁気
シート、１９……センターコア、２５……係合筒
部、２７……下穴、２８……切欠。
Figures 1 to 6 show an example of an embodiment in which the magnetic recording medium of the present invention is applied to a magnetic disk. Figure 1 is a perspective view of the main part, and Figure 2 is the main part showing the state during burring processing. FIG. 3 is a partially cutaway plan view, FIG. 4 is a cross-sectional view taken along line - in FIG. 3,
Fig. 5 is an exploded perspective view, Fig. 6 to Fig. 9 show an example of a conventional magnetic recording medium, Fig. 6 is a perspective view of the main part, and Fig. 7 is a main part showing the state during burring. FIG. 8 is a plan view, and FIG. 9 is a perspective view of the section.
FIG. 2 is a cross-sectional view taken along line - in the figure. Explanation of symbols: 1...Magnetic recording medium, 3...Magnetic sheet, 19...Center core, 25...Engaging cylinder portion, 27...Prepared hole, 28...Notch.
Claims (1)
たセンターコアとから成り、該センターコアの略
中央部に略四角形状の下穴を形成し、当該部分を
バーリング加工により略四角筒状の係合筒部を設
けた磁気記録媒体において、 前記係合筒部の前記下穴に対応した開口部の４
隅部に切欠を設けた ことを特徴とする磁気記録媒体。[Claims for Utility Model Registration] Consisting of a magnetic sheet and a center core attached to the center of the magnetic sheet, a substantially rectangular pilot hole is formed in the center of the center core, and the part is burred. In a magnetic recording medium in which a substantially rectangular cylindrical engagement tube is provided by processing, four openings of the engagement tube corresponding to the pilot holes of the engagement tube are provided.
A magnetic recording medium characterized by having notches at the corners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4614288U JPS63164860U (en) | 1988-04-05 | 1988-04-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4614288U JPS63164860U (en) | 1988-04-05 | 1988-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63164860U true JPS63164860U (en) | 1988-10-27 |
Family
ID=30865536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4614288U Pending JPS63164860U (en) | 1988-04-05 | 1988-04-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63164860U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03154275A (en) * | 1989-11-11 | 1991-07-02 | Nippon Densan Corp | Spindle motor |
| JP2019058916A (en) * | 2017-09-25 | 2019-04-18 | 東プレ株式会社 | Manufacturing method of hot press product |
| JP2021032494A (en) * | 2019-08-26 | 2021-03-01 | 株式会社ノーリツ | Burring forming member, header member of heat exchanger, heat exchanger, and method for manufacturing burring forming member |
| JP2021032473A (en) * | 2019-08-23 | 2021-03-01 | リンナイ株式会社 | Heat exchanger and manufacturing method therefor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5156769A (en) * | 1974-11-13 | 1976-05-18 | Hitachi Ltd | RYOTANFURANJIJOBUHINNO SEIKEIHOHO |
-
1988
- 1988-04-05 JP JP4614288U patent/JPS63164860U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5156769A (en) * | 1974-11-13 | 1976-05-18 | Hitachi Ltd | RYOTANFURANJIJOBUHINNO SEIKEIHOHO |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03154275A (en) * | 1989-11-11 | 1991-07-02 | Nippon Densan Corp | Spindle motor |
| JP2019058916A (en) * | 2017-09-25 | 2019-04-18 | 東プレ株式会社 | Manufacturing method of hot press product |
| US11097332B2 (en) | 2017-09-25 | 2021-08-24 | Topre Corporation | Method for manufacturing hot pressed product |
| JP2021032473A (en) * | 2019-08-23 | 2021-03-01 | リンナイ株式会社 | Heat exchanger and manufacturing method therefor |
| JP2021032494A (en) * | 2019-08-26 | 2021-03-01 | 株式会社ノーリツ | Burring forming member, header member of heat exchanger, heat exchanger, and method for manufacturing burring forming member |