JPS6421779A - Fixing structure for magnetic disk - Google Patents

Fixing structure for magnetic disk

Info

Publication number
JPS6421779A
JPS6421779A JP17759587A JP17759587A JPS6421779A JP S6421779 A JPS6421779 A JP S6421779A JP 17759587 A JP17759587 A JP 17759587A JP 17759587 A JP17759587 A JP 17759587A JP S6421779 A JPS6421779 A JP S6421779A
Authority
JP
Japan
Prior art keywords
magnetic disk
shape
hub member
making
spacer ring
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
JP17759587A
Other languages
Japanese (ja)
Inventor
Hidekazu Kanda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP17759587A priority Critical patent/JPS6421779A/en
Publication of JPS6421779A publication Critical patent/JPS6421779A/en
Pending legal-status Critical Current

Links

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)

Abstract

PURPOSE:To easily fix a magnetic disk without using screw fixing and making it eccentric by installing the magnetic disk on the hub-shaped member of shape memory alloy, given a shape memory, through a spacer ring, and making it into a memorized shape by giving the change of temperature. CONSTITUTION:The hub member 21, made of the shape memory alloy, is worked by memory processing previously into the shape, desired to memorize, at over its Af point (austenite phase transformation completion temperature), and is quenched, and the magnetic disk 12 is installed on it through the spacer ring 13, while the hub member is in a martensite phase state, deformed so as to shrink by impressing further an external stress. Then, the hub member 21 is slightly heated over room temperature, and the outer diameter shape of the hub member 21 is made to restore the memorized original shape of an expanded state that it fills sufficiently the inner diameters of the installed magnetic disk 12 and the spacer ring 13. Thus, the magnetic disk can be easily fixed without using a means like the screw fixing, etc., and making it eccentric.
JP17759587A 1987-07-15 1987-07-15 Fixing structure for magnetic disk Pending JPS6421779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17759587A JPS6421779A (en) 1987-07-15 1987-07-15 Fixing structure for magnetic disk

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17759587A JPS6421779A (en) 1987-07-15 1987-07-15 Fixing structure for magnetic disk

Publications (1)

Publication Number Publication Date
JPS6421779A true JPS6421779A (en) 1989-01-25

Family

ID=16033742

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17759587A Pending JPS6421779A (en) 1987-07-15 1987-07-15 Fixing structure for magnetic disk

Country Status (1)

Country Link
JP (1) JPS6421779A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6055123A (en) * 1997-09-16 2000-04-25 Seagate Technology, Inc. Radially loaded disc mounting system for a disc drive
JP2002179004A (en) * 2000-10-02 2002-06-26 Seiko Corp Cap supplying device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6055123A (en) * 1997-09-16 2000-04-25 Seagate Technology, Inc. Radially loaded disc mounting system for a disc drive
US6724567B1 (en) * 1997-09-16 2004-04-20 Frederick Frank Kazmierczak Radially loaded disc mounting system for a disc drive
JP2002179004A (en) * 2000-10-02 2002-06-26 Seiko Corp Cap supplying device

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