JPS6412900A - Damping device of positioning mechanism - Google Patents

Damping device of positioning mechanism

Info

Publication number
JPS6412900A
JPS6412900A JP16646687A JP16646687A JPS6412900A JP S6412900 A JPS6412900 A JP S6412900A JP 16646687 A JP16646687 A JP 16646687A JP 16646687 A JP16646687 A JP 16646687A JP S6412900 A JPS6412900 A JP S6412900A
Authority
JP
Japan
Prior art keywords
zero
head
time
truck
carriage
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
JP16646687A
Other languages
Japanese (ja)
Inventor
Katsumi Iida
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.)
Brother Industries Ltd
Original Assignee
Brother Industries 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 Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to JP16646687A priority Critical patent/JPS6412900A/en
Publication of JPS6412900A publication Critical patent/JPS6412900A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To perform the most suitable damping all the time even if a friction or a variation in the moment of inertia in the load occurs by change with time by using a zero positioning means as a position-sensor. CONSTITUTION:With the rotation of a lead screw 4 rotated and driven by a stepping motor 2, a carriage 5 is in DC operation. A head 6 and a shade plate 7 are provided to the carriage 5. A zero position of the head 6 is detected by crossing a flood light area of a zero truck-sensor 8 by the shade plate 7, and, at the same time, a head position in the vicinity of the zero truck is detected. An applied timing of a negative phase-exciting pulse for generating the damaging force is calculated by detecting the head position in the vicinity of the zero position, and the stabilized damping is performing all the time.
JP16646687A 1987-07-02 1987-07-02 Damping device of positioning mechanism Pending JPS6412900A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16646687A JPS6412900A (en) 1987-07-02 1987-07-02 Damping device of positioning mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16646687A JPS6412900A (en) 1987-07-02 1987-07-02 Damping device of positioning mechanism

Publications (1)

Publication Number Publication Date
JPS6412900A true JPS6412900A (en) 1989-01-17

Family

ID=15831919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16646687A Pending JPS6412900A (en) 1987-07-02 1987-07-02 Damping device of positioning mechanism

Country Status (1)

Country Link
JP (1) JPS6412900A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017258A (en) * 1986-06-20 1991-05-21 Shell Oil Company Pipe rehabilitation using epoxy resin composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5017258A (en) * 1986-06-20 1991-05-21 Shell Oil Company Pipe rehabilitation using epoxy resin composition

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