JPS6417272A - Head moving device - Google Patents

Head moving device

Info

Publication number
JPS6417272A
JPS6417272A JP17276287A JP17276287A JPS6417272A JP S6417272 A JPS6417272 A JP S6417272A JP 17276287 A JP17276287 A JP 17276287A JP 17276287 A JP17276287 A JP 17276287A JP S6417272 A JPS6417272 A JP S6417272A
Authority
JP
Japan
Prior art keywords
feeding
amt
linear cam
advance
linearity
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
JP17276287A
Other languages
Japanese (ja)
Inventor
Masaki Yono
Katsuo Usui
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP17276287A priority Critical patent/JPS6417272A/en
Publication of JPS6417272A publication Critical patent/JPS6417272A/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
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads
    • G11B21/08—Track changing or selecting during transducing operation

Landscapes

  • Moving Of The Head To Find And Align With The Track (AREA)

Abstract

PURPOSE:To increase a track feeding accuracy and to enable a high speed feeding even using a linear cam of bad accuracy by detecting the sipping amt. in advance from the linearity of the linear cam by a forming part and correcting the slipping amt. by the number of steps in the feeding of a stepping motor. CONSTITUTION:In the linear cam 1 of a forming part, the slippage from a linearity shows the similar trend in the case of using the same die and the amt. thereof becomes equal approximately. The slipping amt. is measured in advance by the measuring device such as laser micrometer, etc., to grasp the trend and slippage of the linear cam and based on these data the feeding amt. showing the linearity by the linear cam 1 is calculated and inputted into a microcomputer 8. A stepping motor 3 is used for feeding to execute a cam feeding according to the number of steps inputted in advance. The track feeding of high accuracy is thus enabled without necessitating the use of a high positioning sensor.
JP17276287A 1987-07-13 1987-07-13 Head moving device Pending JPS6417272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17276287A JPS6417272A (en) 1987-07-13 1987-07-13 Head moving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17276287A JPS6417272A (en) 1987-07-13 1987-07-13 Head moving device

Publications (1)

Publication Number Publication Date
JPS6417272A true JPS6417272A (en) 1989-01-20

Family

ID=15947864

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17276287A Pending JPS6417272A (en) 1987-07-13 1987-07-13 Head moving device

Country Status (1)

Country Link
JP (1) JPS6417272A (en)

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