JPS57169921A - Rotating drum - Google Patents

Rotating drum

Info

Publication number
JPS57169921A
JPS57169921A JP5456381A JP5456381A JPS57169921A JP S57169921 A JPS57169921 A JP S57169921A JP 5456381 A JP5456381 A JP 5456381A JP 5456381 A JP5456381 A JP 5456381A JP S57169921 A JPS57169921 A JP S57169921A
Authority
JP
Japan
Prior art keywords
shaft
inner wheel
rotation
rotating drum
accuracy
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
JP5456381A
Other languages
Japanese (ja)
Inventor
Makoto Fujiki
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP5456381A priority Critical patent/JPS57169921A/en
Publication of JPS57169921A publication Critical patent/JPS57169921A/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
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/52—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with simultaneous movement of head and record carrier, e.g. rotation of head
    • G11B5/53—Disposition or mounting of heads on rotating support

Landscapes

  • Rolls And Other Rotary Bodies (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

PURPOSE:To offer rotation of a video head with high accuracy, by increasing the accuracy of an inner wheel contact surface, through the provision of a step difference to support a preparatory pressure of the inner wheel at a part of a rotating shaft, in a rotating drum construction of the inner wheel preparatory pressure type. CONSTITUTION:A shaft 21 which is the center of rotation is a stepped shaft having a plane 21a in contact with the inner wheel of a bearing 9. This shaft 21 and a transfer stand 22 are fixed with pressure fit or shrinkage fit. A rotating drum 2 having rotating heads 5 and 6 is fixed with a screw to the stand 22. The shaft 21 is taken as a stepped shaft and the squareness of the plane 21a is provided with the accuracy of a shaft single component, allowing to offer the rotation of a video head with high accuracy simply.
JP5456381A 1981-04-10 1981-04-10 Rotating drum Pending JPS57169921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5456381A JPS57169921A (en) 1981-04-10 1981-04-10 Rotating drum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5456381A JPS57169921A (en) 1981-04-10 1981-04-10 Rotating drum

Publications (1)

Publication Number Publication Date
JPS57169921A true JPS57169921A (en) 1982-10-19

Family

ID=12974149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5456381A Pending JPS57169921A (en) 1981-04-10 1981-04-10 Rotating drum

Country Status (1)

Country Link
JP (1) JPS57169921A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4330759Y1 (en) * 1965-09-08 1968-12-14
JPS4529569Y1 (en) * 1968-02-05 1970-11-13

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4330759Y1 (en) * 1965-09-08 1968-12-14
JPS4529569Y1 (en) * 1968-02-05 1970-11-13

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