JPS6280305U - - Google Patents

Info

Publication number
JPS6280305U
JPS6280305U JP17194785U JP17194785U JPS6280305U JP S6280305 U JPS6280305 U JP S6280305U JP 17194785 U JP17194785 U JP 17194785U JP 17194785 U JP17194785 U JP 17194785U JP S6280305 U JPS6280305 U JP S6280305U
Authority
JP
Japan
Prior art keywords
oval
soft magnetic
shaped
shaped soft
permanent magnets
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
JP17194785U
Other languages
Japanese (ja)
Other versions
JPH0244482Y2 (en
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 filed Critical
Priority to JP17194785U priority Critical patent/JPH0244482Y2/ja
Publication of JPS6280305U publication Critical patent/JPS6280305U/ja
Application granted granted Critical
Publication of JPH0244482Y2 publication Critical patent/JPH0244482Y2/ja
Expired legal-status Critical Current

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  • Particle Accelerators (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図及び第２図は本考案の一実施例を示す断
面図及び平面図、第３図は本考案の作用の説明に
供する断面図、第４図は同じく第３図横断面図、
第５図は本考案の作用時の磁束の変化を示す線図
である。 １……リング状永久磁石、２……小判状軟磁性
体、３……リターンヨーク。 1 and 2 are a cross-sectional view and a plan view showing one embodiment of the present invention, FIG. 3 is a cross-sectional view for explaining the operation of the present invention, and FIG. 4 is a cross-sectional view similar to that shown in FIG.
FIG. 5 is a diagram showing changes in magnetic flux during operation of the present invention. 1...Ring-shaped permanent magnet, 2...Oval-shaped soft magnetic material, 3...Return yoke.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 小判状軟磁性体とリング状永久磁石とを交互に
中心を一致させて積層し、しかも前記小判状軟磁
性体の長尺は前記永久磁石の径より大とし、また
長尺箇所で複数の小判状軟磁性体が磁気的に橋絡
するようにリターンヨークを設け、前記小判状軟
磁性体とリターンヨークとの相対的回転により回
転中心での磁場の強さを可変するようにした磁場
発生装置。 Oval-shaped soft magnetic bodies and ring-shaped permanent magnets are stacked alternately with their centers coinciding, and the long length of the oval-shaped soft magnetic bodies is larger than the diameter of the permanent magnet, and a plurality of oval shaped permanent magnets are stacked at the long parts. A magnetic field generating device in which a return yoke is provided so that the oval-shaped soft magnetic material is magnetically bridged, and the strength of the magnetic field at the center of rotation is varied by relative rotation between the oval-shaped soft magnetic material and the return yoke. .
JP17194785U 1985-11-08 1985-11-08 Expired JPH0244482Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17194785U JPH0244482Y2 (en) 1985-11-08 1985-11-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17194785U JPH0244482Y2 (en) 1985-11-08 1985-11-08

Publications (2)

Publication Number Publication Date
JPS6280305U true JPS6280305U (en) 1987-05-22
JPH0244482Y2 JPH0244482Y2 (en) 1990-11-27

Family

ID=31108042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17194785U Expired JPH0244482Y2 (en) 1985-11-08 1985-11-08

Country Status (1)

Country Link
JP (1) JPH0244482Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01132879U (en) * 1988-02-29 1989-09-08
JP2011009414A (en) * 2009-06-25 2011-01-13 Nidec Sankyo Corp Method of manufacturing magnet, and lens drive device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01132879U (en) * 1988-02-29 1989-09-08
JP2011009414A (en) * 2009-06-25 2011-01-13 Nidec Sankyo Corp Method of manufacturing magnet, and lens drive device

Also Published As

Publication number Publication date
JPH0244482Y2 (en) 1990-11-27

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