JPS54113312A - Magnetic disc device - Google Patents
Magnetic disc deviceInfo
- Publication number
- JPS54113312A JPS54113312A JP1961278A JP1961278A JPS54113312A JP S54113312 A JPS54113312 A JP S54113312A JP 1961278 A JP1961278 A JP 1961278A JP 1961278 A JP1961278 A JP 1961278A JP S54113312 A JPS54113312 A JP S54113312A
- Authority
- JP
- Japan
- Prior art keywords
- carriage
- fixed
- discs
- head
- spindle
- 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
Abstract
PURPOSE: To reduce the access time and the off-track, without enlarging the size of the drive source of a carriage, by making a disc, a head arm and the carriage of materials having an identical coefficient of thermal expansion.
CONSTITUTION: A spindle 1 is rotatably supported through bearings 4 and 4' upon a housing 3. A plurality of discs 6 are fixed concentrically with a preset pitch on a shaft 5 which in turn is fixed to the spindle 1. A plurality of head arms 7 are fixed with the same pitch as the discs 6 to the carriage 2. A read-out and write head 8 corresponding to each disc 6 is fixed to each arm 7 so that the carriage 2 is moved back and forth by means of a drive source 20. In this instance, the carriage 2, the discs 6 and the head arms 7 are made of the same material of magnesium or its alloy so that they have an identical coefficient of thermal expansion.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1961278A JPS54113312A (en) | 1978-02-24 | 1978-02-24 | Magnetic disc device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1961278A JPS54113312A (en) | 1978-02-24 | 1978-02-24 | Magnetic disc device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54113312A true JPS54113312A (en) | 1979-09-04 |
Family
ID=12003998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1961278A Pending JPS54113312A (en) | 1978-02-24 | 1978-02-24 | Magnetic disc device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54113312A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56159867A (en) * | 1980-05-15 | 1981-12-09 | Mitsubishi Electric Corp | Magnetic disk memory device |
EP0055568A1 (en) * | 1980-12-23 | 1982-07-07 | Rodime PLC | Read-write head thermal compensation system |
JPS57201661U (en) * | 1981-06-16 | 1982-12-22 | ||
JPS58146055A (en) * | 1982-02-23 | 1983-08-31 | Canon Electronics Inc | Recording and reproducing disk device |
EP0532609A1 (en) * | 1990-06-01 | 1993-03-24 | Conner Peripherals, Inc. | Two and one half inch diameter multiple disk drive |
EP0556287A1 (en) * | 1990-11-09 | 1993-08-25 | Conner Peripherals, Inc. | High performance disk drive architecture |
-
1978
- 1978-02-24 JP JP1961278A patent/JPS54113312A/en active Pending
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56159867A (en) * | 1980-05-15 | 1981-12-09 | Mitsubishi Electric Corp | Magnetic disk memory device |
JPS6143780B2 (en) * | 1980-05-15 | 1986-09-30 | Mitsubishi Electric Corp | |
EP0055568A1 (en) * | 1980-12-23 | 1982-07-07 | Rodime PLC | Read-write head thermal compensation system |
JPS57201661U (en) * | 1981-06-16 | 1982-12-22 | ||
JPS58146055A (en) * | 1982-02-23 | 1983-08-31 | Canon Electronics Inc | Recording and reproducing disk device |
EP0532609A1 (en) * | 1990-06-01 | 1993-03-24 | Conner Peripherals, Inc. | Two and one half inch diameter multiple disk drive |
EP0556287A1 (en) * | 1990-11-09 | 1993-08-25 | Conner Peripherals, Inc. | High performance disk drive architecture |
US5796557A (en) * | 1990-11-09 | 1998-08-18 | Seagate Technology, Inc. | Disk drive architecture including a current-induced latching device |
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