JPS6412480U - - Google Patents

Info

Publication number
JPS6412480U
JPS6412480U JP10566887U JP10566887U JPS6412480U JP S6412480 U JPS6412480 U JP S6412480U JP 10566887 U JP10566887 U JP 10566887U JP 10566887 U JP10566887 U JP 10566887U JP S6412480 U JPS6412480 U JP S6412480U
Authority
JP
Japan
Prior art keywords
coil
actuator
magnetic
permanent magnet
magnet
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
JP10566887U
Other languages
Japanese (ja)
Other versions
JPH0540704Y2 (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 JP1987105668U priority Critical patent/JPH0540704Y2/ja
Publication of JPS6412480U publication Critical patent/JPS6412480U/ja
Application granted granted Critical
Publication of JPH0540704Y2 publication Critical patent/JPH0540704Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Moving Of Heads (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Description

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

第１図および第２図は各々本考案の実施例を示
す要部拡大断面図および一部省略要部底面図、第
３図は本考案の他の実施例を示す要部拡大断面図
、第４図は従来のものを示す一部破砕一部断面平
面図、第５図は第４図におけるＡ矢視図である。 １，１ａ，１ｂ：ヨーク、２，１１：永久磁石
、５，１３：アーム、６：可動コイル、１２：検
出コイル、１２ａ：キヤンセルコイル。 1 and 2 are an enlarged sectional view and a partially omitted bottom view of the main parts showing an embodiment of the present invention, respectively, and FIG. 3 is an enlarged sectional view of the main parts showing another embodiment of the invention, and FIG. FIG. 4 is a partially fragmented, partially sectional plan view showing a conventional one, and FIG. 5 is a view taken in the direction of arrow A in FIG. 4. 1, 1a, 1b: yoke, 2, 11: permanent magnet, 5, 13: arm, 6: moving coil, 12: detection coil, 12a: cancel coil.

Claims (1)

【実用新案登録請求の範囲】 (1) 極性が異なる永久磁石の一方の側にヨーク
を固着し、永久磁石面を対向させて形成した磁気
回路と、一端に可動コイルを他端に磁気ヘツドを
各々固着して揺動自在に形成したアームとからな
り、前記磁気回路の空隙部に可動コイルを配設し
て構成した磁気デイスク用アクチユエータにおい
て、前記一方のヨークの他の側に他の永久磁石を
固着し、この永久磁石の磁束を横切るように検出
コイルおよびキヤンセルコイルを各々逆方向に巻
回し、かつ近接させて設けると共に、前記検出コ
イルおよびキヤンセルコイルを前記アームと協同
揺動自在に設けたことを特徴とする磁気デイスク
用アクチユエータ。 (2) 永久磁石が希土類磁石であり、他の永久磁
石がフエライト磁石である実用新案登録請求の範
囲第１項記載の磁気デイスク用アクチユエータ。[Scope of Claim for Utility Model Registration] (1) A magnetic circuit formed by fixing a yoke to one side of permanent magnets with different polarities and making the permanent magnet surfaces face each other, a moving coil at one end and a magnetic head at the other end. In the actuator for a magnetic disk, the actuator is composed of arms that are fixed to each other so as to be swingable, and a movable coil is disposed in the gap of the magnetic circuit. A detection coil and a cancellation coil are each wound in opposite directions so as to cross the magnetic flux of the permanent magnet, and are provided close to each other, and the detection coil and the cancellation coil are provided so as to be able to freely swing together with the arm. An actuator for magnetic disks characterized by the following. (2) The actuator for a magnetic disk according to claim 1, wherein the permanent magnet is a rare earth magnet and the other permanent magnet is a ferrite magnet.
JP1987105668U 1987-07-09 1987-07-09 Expired - Lifetime JPH0540704Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987105668U JPH0540704Y2 (en) 1987-07-09 1987-07-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987105668U JPH0540704Y2 (en) 1987-07-09 1987-07-09

Publications (2)

Publication Number Publication Date
JPS6412480U true JPS6412480U (en) 1989-01-23
JPH0540704Y2 JPH0540704Y2 (en) 1993-10-15

Family

ID=31338487

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987105668U Expired - Lifetime JPH0540704Y2 (en) 1987-07-09 1987-07-09

Country Status (1)

Country Link
JP (1) JPH0540704Y2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558846A (en) * 1978-10-27 1980-05-01 Sony Corp Record player
JPS6044478U (en) * 1983-09-02 1985-03-28 株式会社三協精機製作所 linear actuator
JPS60159566U (en) * 1984-03-30 1985-10-23 住友特殊金属株式会社 Head positioning device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044478B2 (en) * 1981-11-02 1985-10-03 住友金属鉱山株式会社 Wing bit for ground excavation

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5558846A (en) * 1978-10-27 1980-05-01 Sony Corp Record player
JPS6044478U (en) * 1983-09-02 1985-03-28 株式会社三協精機製作所 linear actuator
JPS60159566U (en) * 1984-03-30 1985-10-23 住友特殊金属株式会社 Head positioning device

Also Published As

Publication number Publication date
JPH0540704Y2 (en) 1993-10-15

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