JPS6437777A - Head access device - Google Patents

Head access device

Info

Publication number
JPS6437777A
JPS6437777A JP19424187A JP19424187A JPS6437777A JP S6437777 A JPS6437777 A JP S6437777A JP 19424187 A JP19424187 A JP 19424187A JP 19424187 A JP19424187 A JP 19424187A JP S6437777 A JPS6437777 A JP S6437777A
Authority
JP
Japan
Prior art keywords
displacement
stepping motor
piezoelectric actuator
pitch part
fine pitch
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
JP19424187A
Other languages
Japanese (ja)
Inventor
Akira Kato
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.)
Olympus Corp
Original Assignee
Olympus Optical Co 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP19424187A priority Critical patent/JPS6437777A/en
Publication of JPS6437777A publication Critical patent/JPS6437777A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To execute a head access at a high speed by using a displacement converting element to have a displacement converting characteristic to include a rough part and a fine pitch part and inserting a piezoelectric actuator into a displacement transmitting route. CONSTITUTION:The titled device is composed of a cam 52 as the displacement transmitting route to have the displacement converting characteristic to include the rough pitch part, which has a displacement comparatively rapid to the unit quantity of the output displacement of a stepping motor 51 to be a driving source, and the fine pitch part to have the displacement, which is comparatively loose to the unit quantity, in a neighboring area and a piezoelectric actuator 58 which is inserted to the displacement transmitting route from the stepping motor 51 to a head block 60 and has the displacement of resolution higher than the fine pitch part so that it can execute operation with overlapping to the displacement of the head block 60 by the stepping motor 51. Thus, a defect on a characteristic due to the cam is compensated by the operation of the piezoelectric actuator and the head access can be executed at the high speed.
JP19424187A 1987-08-03 1987-08-03 Head access device Pending JPS6437777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19424187A JPS6437777A (en) 1987-08-03 1987-08-03 Head access device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19424187A JPS6437777A (en) 1987-08-03 1987-08-03 Head access device

Publications (1)

Publication Number Publication Date
JPS6437777A true JPS6437777A (en) 1989-02-08

Family

ID=16321328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19424187A Pending JPS6437777A (en) 1987-08-03 1987-08-03 Head access device

Country Status (1)

Country Link
JP (1) JPS6437777A (en)

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