JPS57198531A - Head drum mechanism - Google Patents

Head drum mechanism

Info

Publication number
JPS57198531A
JPS57198531A JP56083029A JP8302981A JPS57198531A JP S57198531 A JPS57198531 A JP S57198531A JP 56083029 A JP56083029 A JP 56083029A JP 8302981 A JP8302981 A JP 8302981A JP S57198531 A JPS57198531 A JP S57198531A
Authority
JP
Japan
Prior art keywords
drum
fixed
flange
bearing housing
rotary
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
JP56083029A
Other languages
Japanese (ja)
Inventor
Masaharu Higuchi
Koji Kubo
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP56083029A priority Critical patent/JPS57198531A/en
Publication of JPS57198531A publication Critical patent/JPS57198531A/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

Abstract

PURPOSE:To make the size of a head drum mechanism small, by forming a bearing housing at the inside of a fixed drum. CONSTITUTION:A bearing housing 24 is formed at the inside of the 1st fixed drum 25 and the 2nd fixed drum 43 is fitted via a drum fitting metal ficture 42 to a drum support member 41 fitted at the side of the fixed drum 25 with a step for projected share. A rotary flange 30 is pressed in and fixed to a rotary shaft 21 through the bearing housing 24 and a rotary disc 35 is fixed to the side of the flange 30. The rotary disc 35 has a plurality of screw holes at the contact plane with the flange 30, and at the replacement of a video head 37, each screw hole is screwed with a screw and tightening is made by touching with the flange 30.
JP56083029A 1981-05-29 1981-05-29 Head drum mechanism Pending JPS57198531A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56083029A JPS57198531A (en) 1981-05-29 1981-05-29 Head drum mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56083029A JPS57198531A (en) 1981-05-29 1981-05-29 Head drum mechanism

Publications (1)

Publication Number Publication Date
JPS57198531A true JPS57198531A (en) 1982-12-06

Family

ID=13790800

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56083029A Pending JPS57198531A (en) 1981-05-29 1981-05-29 Head drum mechanism

Country Status (1)

Country Link
JP (1) JPS57198531A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641214A (en) * 1982-08-20 1987-02-03 Matsushita Electric Industrial Co., Ltd. Rotary head assembly with pump-out type spiral grooves for more stable tape running
US4706143A (en) * 1982-09-30 1987-11-10 Matsushita Electric Industrial Co., Ltd. Rotary head cylinder device with fluid bearing
US4835645A (en) * 1986-11-05 1989-05-30 Hitachi, Ltd. Rotary magnetic head assembly
US4891726A (en) * 1986-12-30 1990-01-02 Sony Corporation Rotary magnetic head and guide drum assembly with reduce mounting height

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507010B1 (en) * 1970-12-28 1975-03-20
JPS55150125A (en) * 1979-05-07 1980-11-21 Sony Corp Magnetic head drum unit
JPS56165926A (en) * 1980-05-26 1981-12-19 Hitachi Ltd Direct motor coupling type rotary magnetic head device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS507010B1 (en) * 1970-12-28 1975-03-20
JPS55150125A (en) * 1979-05-07 1980-11-21 Sony Corp Magnetic head drum unit
JPS56165926A (en) * 1980-05-26 1981-12-19 Hitachi Ltd Direct motor coupling type rotary magnetic head device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4641214A (en) * 1982-08-20 1987-02-03 Matsushita Electric Industrial Co., Ltd. Rotary head assembly with pump-out type spiral grooves for more stable tape running
US4706143A (en) * 1982-09-30 1987-11-10 Matsushita Electric Industrial Co., Ltd. Rotary head cylinder device with fluid bearing
US4835645A (en) * 1986-11-05 1989-05-30 Hitachi, Ltd. Rotary magnetic head assembly
US4891726A (en) * 1986-12-30 1990-01-02 Sony Corporation Rotary magnetic head and guide drum assembly with reduce mounting height

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