JPS5580855A - Rotary arm type positioning mechanism - Google Patents
Rotary arm type positioning mechanismInfo
- Publication number
- JPS5580855A JPS5580855A JP15234778A JP15234778A JPS5580855A JP S5580855 A JPS5580855 A JP S5580855A JP 15234778 A JP15234778 A JP 15234778A JP 15234778 A JP15234778 A JP 15234778A JP S5580855 A JPS5580855 A JP S5580855A
- Authority
- JP
- Japan
- Prior art keywords
- arm
- centroid
- shaft
- force
- coil
- 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
Links
Landscapes
- Moving Of Heads (AREA)
Abstract
PURPOSE: To ensure the high-accuracy positioning with the excellent quick-response properties by distributing the shaft and the coil constituting the driving means at such positions where the specific terms may be satisfied to the centroid of the arm.
CONSTITUTION: In case the rotation radius of the whole system of rotary arm 6 is refeered to as k with the centroid of G, shaft 4 and coil 5 constituting the driving means are distributed so that r1.r2=k may be satisfied, where r1 is the distance between the centroid and shaft 4 and r2 is the distance up to the point where centroid G and force F are applied. Thus arm 6 starts both the parallel-shift motion in the direction of positioning active force F and the rotary motion centering on centroid G and at G via force F which is generated from coil 5 and then applied to arm 6. And arm 6 becomes the immobile point to force F. As a result, the bearing drift of shaft 4 and the rigidity of the rotary arm can be ignored for the high frequency component with which the oscillation of the servo system becomes a problem.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15234778A JPS5580855A (en) | 1978-12-08 | 1978-12-08 | Rotary arm type positioning mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15234778A JPS5580855A (en) | 1978-12-08 | 1978-12-08 | Rotary arm type positioning mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5580855A true JPS5580855A (en) | 1980-06-18 |
Family
ID=15538545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15234778A Pending JPS5580855A (en) | 1978-12-08 | 1978-12-08 | Rotary arm type positioning mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5580855A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5616969A (en) * | 1979-06-04 | 1981-02-18 | Microcomputer Syst Corp | Head actuator assembly for fixed disk |
JPS56163559A (en) * | 1980-05-20 | 1981-12-16 | Yokogawa Hokushin Electric Corp | Actuator mechanism of magnetic disk device |
JPS57133564A (en) * | 1981-02-09 | 1982-08-18 | Fujitsu Ltd | Head positioning device |
JPS59178630A (en) * | 1983-03-29 | 1984-10-09 | Toshiba Corp | Optical pickup |
JPS63191467U (en) * | 1988-06-16 | 1988-12-09 |
-
1978
- 1978-12-08 JP JP15234778A patent/JPS5580855A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5616969A (en) * | 1979-06-04 | 1981-02-18 | Microcomputer Syst Corp | Head actuator assembly for fixed disk |
JPS56163559A (en) * | 1980-05-20 | 1981-12-16 | Yokogawa Hokushin Electric Corp | Actuator mechanism of magnetic disk device |
JPS57133564A (en) * | 1981-02-09 | 1982-08-18 | Fujitsu Ltd | Head positioning device |
JPS59178630A (en) * | 1983-03-29 | 1984-10-09 | Toshiba Corp | Optical pickup |
JPS63191467U (en) * | 1988-06-16 | 1988-12-09 | ||
JPH039189Y2 (en) * | 1988-06-16 | 1991-03-07 |
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