JPS6423441A - Center positioning member for information recording disk - Google Patents

Center positioning member for information recording disk

Info

Publication number
JPS6423441A
JPS6423441A JP62178420A JP17842087A JPS6423441A JP S6423441 A JPS6423441 A JP S6423441A JP 62178420 A JP62178420 A JP 62178420A JP 17842087 A JP17842087 A JP 17842087A JP S6423441 A JPS6423441 A JP S6423441A
Authority
JP
Japan
Prior art keywords
hub
resin
positioning member
information recording
recording disk
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
Application number
JP62178420A
Other languages
Japanese (ja)
Inventor
Shinobu Kunida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP62178420A priority Critical patent/JPS6423441A/en
Publication of JPS6423441A publication Critical patent/JPS6423441A/en
Pending legal-status Critical Current

Links

Landscapes

  • Optical Record Carriers And Manufacture Thereof (AREA)

Abstract

PURPOSE:To facilitate the manufacture and to facilitate the adhesion between a recording disk made of an organic substance and a resin packing part of a hub by constituting the hub by an inorganic embedded plate and the resin packing part. CONSTITUTION:A center hole of the embedded plate 5 made of a SUS 430 is fitted to a center projection of a lower die 36. The upper die 7 and the lower die 36 are put together closely, a vinylchloride resin 11 is packed from a nozzle 10 to a runner 12 to pack the space (shaped into the hub) through a gate 13. The forming is removed from the die by using a pin 8 after solidification to form the hub 2. The hub 2 is used as the center positioning member and the resin packed part of the hub 2 and the organic substrate 1 are adhered easily and strongly. A magnet 4 attracting the hub 2 is fixed to a rotary shaft 3 and then the manufacture of the information recording medium is finished.
JP62178420A 1987-07-17 1987-07-17 Center positioning member for information recording disk Pending JPS6423441A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62178420A JPS6423441A (en) 1987-07-17 1987-07-17 Center positioning member for information recording disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62178420A JPS6423441A (en) 1987-07-17 1987-07-17 Center positioning member for information recording disk

Publications (1)

Publication Number Publication Date
JPS6423441A true JPS6423441A (en) 1989-01-26

Family

ID=16048190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62178420A Pending JPS6423441A (en) 1987-07-17 1987-07-17 Center positioning member for information recording disk

Country Status (1)

Country Link
JP (1) JPS6423441A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62129985A (en) * 1985-11-30 1987-06-12 Hitachi Maxell Ltd Magnet clamp type information recording disk
JPS63173288A (en) * 1987-01-13 1988-07-16 Asahi Chem Ind Co Ltd Optical information recording medium

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62129985A (en) * 1985-11-30 1987-06-12 Hitachi Maxell Ltd Magnet clamp type information recording disk
JPS63173288A (en) * 1987-01-13 1988-07-16 Asahi Chem Ind Co Ltd Optical information recording medium

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