JPS55113177A - Air ventilating mechanism of magnetic disk unit - Google Patents

Air ventilating mechanism of magnetic disk unit

Info

Publication number
JPS55113177A
JPS55113177A JP2057079A JP2057079A JPS55113177A JP S55113177 A JPS55113177 A JP S55113177A JP 2057079 A JP2057079 A JP 2057079A JP 2057079 A JP2057079 A JP 2057079A JP S55113177 A JPS55113177 A JP S55113177A
Authority
JP
Japan
Prior art keywords
disk
air
hole
bearing
guide
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
JP2057079A
Other languages
Japanese (ja)
Inventor
Takashi Kaneko
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP2057079A priority Critical patent/JPS55113177A/en
Publication of JPS55113177A publication Critical patent/JPS55113177A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
    • G11B23/505—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of disk carriers

Landscapes

  • Motor Or Generator Frames (AREA)

Abstract

PURPOSE:To prevent external air from flowing in from a beginning part and grease from scattering by keeping the upper part of a disk bearing at a positive pressure by controlling an air flow through a guide plate, guide balde, disk through hole, etc. CONSTITUTION:An air ventilation passage is formed of guide plate 3, guide blade 5, shield plate 7, through hole 11 of disk 2, etc., provided at the outer circumference of disk 2. Then, a flow of air flowing downward by plate 3 is led toward the rotation center of the disk by blade 5 and circulated smoothly by way of hole 11 to keep positive pressure near the upper part of the bearing of spindle motor 1 of disk 2. Therefore, the mixing of an external flow of air from the bearing part and the scattering of grease can be prevented.
JP2057079A 1979-02-23 1979-02-23 Air ventilating mechanism of magnetic disk unit Pending JPS55113177A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2057079A JPS55113177A (en) 1979-02-23 1979-02-23 Air ventilating mechanism of magnetic disk unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2057079A JPS55113177A (en) 1979-02-23 1979-02-23 Air ventilating mechanism of magnetic disk unit

Publications (1)

Publication Number Publication Date
JPS55113177A true JPS55113177A (en) 1980-09-01

Family

ID=12030842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2057079A Pending JPS55113177A (en) 1979-02-23 1979-02-23 Air ventilating mechanism of magnetic disk unit

Country Status (1)

Country Link
JP (1) JPS55113177A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605490A (en) * 1983-06-22 1985-01-12 Fujitsu Ltd Magnetic disk device
US4636891A (en) * 1982-02-11 1987-01-13 Cii Honeywell Bull Magnetic disc cartridge with ventilating structure
EP0351178A2 (en) * 1988-07-11 1990-01-17 Minnesota Mining And Manufacturing Company Disk cartridge
JP2002266880A (en) * 2001-03-05 2002-09-18 Minebea Co Ltd Seal structure of ball bearing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636891A (en) * 1982-02-11 1987-01-13 Cii Honeywell Bull Magnetic disc cartridge with ventilating structure
JPS605490A (en) * 1983-06-22 1985-01-12 Fujitsu Ltd Magnetic disk device
JPH0542755B2 (en) * 1983-06-22 1993-06-29 Fujitsu Ltd
EP0351178A2 (en) * 1988-07-11 1990-01-17 Minnesota Mining And Manufacturing Company Disk cartridge
JP2002266880A (en) * 2001-03-05 2002-09-18 Minebea Co Ltd Seal structure of ball bearing

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