FR2477749B1 - DRIVE DEVICE WITH SEALS FOR FIXED PLATE MAGNETIC MEMORY, OR FOR DISC MEMORY - Google Patents

DRIVE DEVICE WITH SEALS FOR FIXED PLATE MAGNETIC MEMORY, OR FOR DISC MEMORY

Info

Publication number
FR2477749B1
FR2477749B1 FR8104788A FR8104788A FR2477749B1 FR 2477749 B1 FR2477749 B1 FR 2477749B1 FR 8104788 A FR8104788 A FR 8104788A FR 8104788 A FR8104788 A FR 8104788A FR 2477749 B1 FR2477749 B1 FR 2477749B1
Authority
FR
France
Prior art keywords
memory
seals
fixed plate
drive device
plate magnetic
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.)
Expired
Application number
FR8104788A
Other languages
French (fr)
Other versions
FR2477749A1 (en
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.)
Ebm Papst St Georgen GmbH and Co KG
Original Assignee
Papst Motoren GmbH and Co KG
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
Priority claimed from DE3049334A external-priority patent/DE3049334C3/en
Application filed by Papst Motoren GmbH and Co KG filed Critical Papst Motoren GmbH and Co KG
Publication of FR2477749A1 publication Critical patent/FR2477749A1/en
Application granted granted Critical
Publication of FR2477749B1 publication Critical patent/FR2477749B1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/038—Centering or locking of a plurality of discs in a single cartridge
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/01—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for shielding from electromagnetic fields, i.e. structural association with shields
    • H02K11/012—Shields associated with rotating parts, e.g. rotor cores or rotary shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/086—Structural association with bearings radially supporting the rotor around a fixed spindle; radially supporting the rotor directly
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
    • H02K2211/03—Machines characterised by circuit boards, e.g. pcb

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Motor Or Generator Frames (AREA)
FR8104788A 1980-03-05 1981-03-05 DRIVE DEVICE WITH SEALS FOR FIXED PLATE MAGNETIC MEMORY, OR FOR DISC MEMORY Expired FR2477749B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US12740480A 1980-03-05 1980-03-05
DE3045972 1980-12-05
DE3049334A DE3049334C3 (en) 1980-03-05 1980-12-29 Drive device for hard disk storage

Publications (2)

Publication Number Publication Date
FR2477749A1 FR2477749A1 (en) 1981-09-11
FR2477749B1 true FR2477749B1 (en) 1985-11-08

Family

ID=27188997

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8104788A Expired FR2477749B1 (en) 1980-03-05 1981-03-05 DRIVE DEVICE WITH SEALS FOR FIXED PLATE MAGNETIC MEMORY, OR FOR DISC MEMORY

Country Status (1)

Country Link
FR (1) FR2477749B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471395A (en) * 1982-05-17 1984-09-11 International Business Machines Corporation Self-ventilated recirculating airflow system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1435100A (en) * 1965-02-24 1966-04-15 Improvements to engines with a view to facilitating their assembly on any known assemblies
GB1486070A (en) * 1975-04-02 1977-09-14 Ibm Magnetic disc file including a clean gas system
GB1537729A (en) * 1977-04-15 1979-01-04 Uk Nii Stankov I Instr Od Z Ra Spindle assembly for a precision machine tool
US4249221A (en) * 1979-04-23 1981-02-03 Sli Industries, Inc. Method and apparatus for preventing contamination of a rotating magnetic disc

Also Published As

Publication number Publication date
FR2477749A1 (en) 1981-09-11

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Legal Events

Date Code Title Description
TP Transmission of property
CJ Change in legal form