GB1435568A - Magnetic recording apparatus - Google Patents

Magnetic recording apparatus

Info

Publication number
GB1435568A
GB1435568A GB2934173A GB2934173A GB1435568A GB 1435568 A GB1435568 A GB 1435568A GB 2934173 A GB2934173 A GB 2934173A GB 2934173 A GB2934173 A GB 2934173A GB 1435568 A GB1435568 A GB 1435568A
Authority
GB
United Kingdom
Prior art keywords
sheet
disc
magnetic
head
june
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
GB2934173A
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Priority claimed from JP47062231A external-priority patent/JPS5123326B2/ja
Priority claimed from JP47062230A external-priority patent/JPS5123325B2/ja
Priority claimed from JP47062233A external-priority patent/JPS5123327B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1435568A publication Critical patent/GB1435568A/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
    • G11B17/022—Positioning or locking of single discs
    • G11B17/028—Positioning or locking of single discs of discs rotating during transducing operation
    • G11B17/0287—Positioning or locking of single discs of discs rotating during transducing operation by permanent connections, e.g. screws, rivets
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/82—Disk carriers
    • G11B5/825—Disk carriers flexible discs

Landscapes

  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)

Abstract

1435568 Magnetic disc recording apparatus MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 20 June 1973 [20 June 1972 (3)] 29341/73 Heading G5R A flexible magnetic sheet 10 is clamped to a surface of a rotatable disc 12 which is recessed at 15 over the region in which a magnetic head 42 can contact the sheet 10. The recess can be grooved, Fig. 4 (not shown), and can be positioned around the disc periphery. Fig. 5 (not shown). The sheet 10 may as shown be backed by a second flexible sheet 11 of, e.g. polyethylene terephthalate, aluminium foil or a plastics similar to the base layer of the magnetic sheet 10. The sheets are clamped by a nut 23 and a plate 30 on to a screw-threaded spindle 18. The disc may be driven at high speed by a spindle motor 26, or at low speed by a rimdrive capstan 27 engaging a resilient or frictional peripheral layer 28. The head 42 is pivoted about a shaft 35 which is also axially slidable by a manually-rotated lead screw 38 for radial scanning, a finger 37 on the shaft 35 engaging in the thread when the head arm 36 is lowered by a cam 43.
GB2934173A 1972-06-20 1973-06-20 Magnetic recording apparatus Expired GB1435568A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP47062231A JPS5123326B2 (en) 1972-06-20 1972-06-20
JP47062230A JPS5123325B2 (en) 1972-06-20 1972-06-20
JP47062233A JPS5123327B2 (en) 1972-06-20 1972-06-20

Publications (1)

Publication Number Publication Date
GB1435568A true GB1435568A (en) 1976-05-12

Family

ID=27297774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2934173A Expired GB1435568A (en) 1972-06-20 1973-06-20 Magnetic recording apparatus

Country Status (3)

Country Link
CA (1) CA1011455A (en)
FR (1) FR2189806B1 (en)
GB (1) GB1435568A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166586A (en) * 1984-10-29 1986-05-08 Priam Corp Grounding arrangement for head disk assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4216512A (en) * 1978-08-21 1980-08-05 Sycor, Inc. Disc recorder with brushless DC motor drive

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2166586A (en) * 1984-10-29 1986-05-08 Priam Corp Grounding arrangement for head disk assembly

Also Published As

Publication number Publication date
FR2189806A1 (en) 1974-01-25
DE2330289A1 (en) 1974-01-31
CA1011455A (en) 1977-05-31
FR2189806B1 (en) 1977-05-06
DE2330289B2 (en) 1976-06-16

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Legal Events

Date Code Title Description
PS Patent sealed
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee