JPS55153125A - Magnetic shielding device of direct driving cylinder - Google Patents

Magnetic shielding device of direct driving cylinder

Info

Publication number
JPS55153125A
JPS55153125A JP5986179A JP5986179A JPS55153125A JP S55153125 A JPS55153125 A JP S55153125A JP 5986179 A JP5986179 A JP 5986179A JP 5986179 A JP5986179 A JP 5986179A JP S55153125 A JPS55153125 A JP S55153125A
Authority
JP
Japan
Prior art keywords
cylinder
magnetic shielding
fixed
driving cylinder
constitution
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.)
Granted
Application number
JP5986179A
Other languages
Japanese (ja)
Other versions
JPS6032253B2 (en
Inventor
Kunio Yoshizawa
Toshiharu Miyanochi
Yasuo Mihashi
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5986179A priority Critical patent/JPS6032253B2/en
Publication of JPS55153125A publication Critical patent/JPS55153125A/en
Publication of JPS6032253B2 publication Critical patent/JPS6032253B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

PURPOSE: To miniaturize the constitution of a flat-plate motor direct driving cylinder by covering the inner circumference and bottom part of a fixed cylinder for a rotary head unit with a cylindrical thin magnetic shielding body with a bottom.
CONSTITUTION: In fixed cylinder 2, flat-plate type electric motor 4 to be fixed to cylinder 2 via stator yoke 10 is fixed and upper cylinder 3 provided with a rotary head coupled direct with electric motor 4 is turned. Then, the inner circumference and bottom parts of cylinder 2 are surrounded with magnetic shielding body 12 formed of cylinder part 12a and bottom part 12b so as to prevent magnetic flux from leaking from electric motor 4. This constitution avoids a large-sized flat- plate motor driving cylinder even when the magnetic shielding body is internally provided.
COPYRIGHT: (C)1980,JPO&Japio
JP5986179A 1979-05-15 1979-05-15 Magnetic shielding device for direct drive cylinders Expired JPS6032253B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5986179A JPS6032253B2 (en) 1979-05-15 1979-05-15 Magnetic shielding device for direct drive cylinders

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5986179A JPS6032253B2 (en) 1979-05-15 1979-05-15 Magnetic shielding device for direct drive cylinders

Publications (2)

Publication Number Publication Date
JPS55153125A true JPS55153125A (en) 1980-11-28
JPS6032253B2 JPS6032253B2 (en) 1985-07-26

Family

ID=13125375

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5986179A Expired JPS6032253B2 (en) 1979-05-15 1979-05-15 Magnetic shielding device for direct drive cylinders

Country Status (1)

Country Link
JP (1) JPS6032253B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5764442A (en) * 1993-08-17 1998-06-09 Kabushiki Kaisha Sankyo Seiko Seisakusho Rotary head drum with shielding of heads and rotary transformers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5764442A (en) * 1993-08-17 1998-06-09 Kabushiki Kaisha Sankyo Seiko Seisakusho Rotary head drum with shielding of heads and rotary transformers

Also Published As

Publication number Publication date
JPS6032253B2 (en) 1985-07-26

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