JPS55153125A - Magnetic shielding device of direct driving cylinder - Google Patents
Magnetic shielding device of direct driving cylinderInfo
- 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
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
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)
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 |
-
1979
- 1979-05-15 JP JP5986179A patent/JPS6032253B2/en not_active Expired
Cited By (1)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS52156313A (en) | Rotor for magneto | |
JPS5279202A (en) | Stator winding supporting apparatus | |
JPS5688660A (en) | Flat coreless motor with tachometer generator built-in | |
JPS55153125A (en) | Magnetic shielding device of direct driving cylinder | |
JPS5530528A (en) | Bearing device | |
JPS55125070A (en) | Flat coreless rotary electric machine | |
JPS5572657A (en) | Distributor | |
JPS5647953A (en) | Tone arm driver | |
JPS53115012A (en) | Motor with frequency generator | |
JPS5690415A (en) | Rotary head cylinder device | |
JPS5237246A (en) | High-freuency heating apparatus | |
JPS552387A (en) | Outer-rotor type motor | |
JPS5227509A (en) | Stepping motor for timepieces | |
JPS5444704A (en) | Dc electric machine | |
JPS51119903A (en) | Brush system | |
JPS5257678A (en) | Core piling apparatus | |
JPS5463310A (en) | Dc motor | |
JPS5297101A (en) | Stator for rotary electric machine | |
JPS5221607A (en) | Pulse motor | |
JPS53146106A (en) | Rotor for coreless motor | |
JPS51149507A (en) | Transportation method for the large-sized horizontal shaft electric machine and its construction | |
JPS53140521A (en) | Pulse motor | |
JPS566062A (en) | Fuel injection valve | |
JPS53127616A (en) | Small sized dc motor | |
JPS5574325A (en) | Axial air-gap motor |