JPS59149275U - floppy disc - Google Patents

floppy disc

Info

Publication number
JPS59149275U
JPS59149275U JP4254083U JP4254083U JPS59149275U JP S59149275 U JPS59149275 U JP S59149275U JP 4254083 U JP4254083 U JP 4254083U JP 4254083 U JP4254083 U JP 4254083U JP S59149275 U JPS59149275 U JP S59149275U
Authority
JP
Japan
Prior art keywords
metal ring
hub
magnetic disk
floppy disc
linear expansion
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.)
Granted
Application number
JP4254083U
Other languages
Japanese (ja)
Other versions
JPH0127187Y2 (en
Inventor
康一郎 中川
真治 中村
祥剛 林
大井戸　彦文
Original Assignee
松下電器産業株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 松下電器産業株式会社 filed Critical 松下電器産業株式会社
Priority to JP4254083U priority Critical patent/JPS59149275U/en
Publication of JPS59149275U publication Critical patent/JPS59149275U/en
Application granted granted Critical
Publication of JPH0127187Y2 publication Critical patent/JPH0127187Y2/ja
Granted legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のフロッピーディスクの一例の斜視図、第
２図は従来のハブと磁気ディスクの断面図、第３図およ
び第４図はそれぞれ本考案のフロッピーディスクの各実
施例のハブと磁気ディスクの断面図、第５図は金属リン
グの線膨張係数による単位面積当りの磁気ディスクの内
部応力を示す特性図である。 ５・・・・・・磁気ディスク、６ａ、　６ｂ・・・・・
・ハブ、８・・・・・・金属リング、９・・・・・・接
着剤。FIG. 1 is a perspective view of an example of a conventional floppy disk, FIG. 2 is a sectional view of a conventional hub and magnetic disk, and FIGS. 3 and 4 are a hub and magnetic disk of each embodiment of the floppy disk of the present invention. The cross-sectional view of the disk, FIG. 5, is a characteristic diagram showing the internal stress of the magnetic disk per unit area due to the coefficient of linear expansion of the metal ring. 5...Magnetic disk, 6a, 6b...
・Hub, 8...Metal ring, 9...Adhesive.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）中央部に樹脂材料からなるハブが取付けられた磁
気ディスクを内蔵し、かつ、上記ハブと上記磁気ディス
クの間に上記磁気ディスクの線膨張係数１７ＸｌＯ−６
α／α／’　Ｃに近い金属材料から成る金属リングを介
在させて上記磁気ディスクと上記金属リング、および上
記金属リングと上記ハブとを接着剤で固着してなるフロ
ッピーディスク。(1) A built-in magnetic disk with a hub made of resin material attached to the center, and a linear expansion coefficient of 17XlO-6 between the hub and the magnetic disk.
A floppy disk formed by fixing the magnetic disk and the metal ring, and the metal ring and the hub with an adhesive, with a metal ring made of a metal material close to α/α/'C interposed therebetween. （２）金属リングの材料の線膨張係数がＩＯＸＩＯ−６
ｃｍ／ｃｍ／”　Ｃかなら２５Ｘ１０−６ｃｍ／ａｎ／
”Ｃの範囲から成る実用新案登録請求の範囲第（１）項
記載のフロッピーディスク。(2) The coefficient of linear expansion of the metal ring material is IOXIO-6
cm/cm/”C 25X10-6cm/an/
``The floppy disk according to claim (1) of the utility model registration claim consisting of the scope C.
JP4254083U 1983-03-23 1983-03-23 floppy disc Granted JPS59149275U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4254083U JPS59149275U (en) 1983-03-23 1983-03-23 floppy disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4254083U JPS59149275U (en) 1983-03-23 1983-03-23 floppy disc

Publications (2)

Publication Number Publication Date
JPS59149275U true JPS59149275U (en) 1984-10-05
JPH0127187Y2 JPH0127187Y2 (en) 1989-08-14

Family

ID=30173077

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4254083U Granted JPS59149275U (en) 1983-03-23 1983-03-23 floppy disc

Country Status (1)

Country Link
JP (1) JPS59149275U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61148667A (en) * 1984-12-20 1986-07-07 Fujitsu Ltd Attaching structure of magnetic disc

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61148667A (en) * 1984-12-20 1986-07-07 Fujitsu Ltd Attaching structure of magnetic disc

Also Published As

Publication number Publication date
JPH0127187Y2 (en) 1989-08-14

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