JPS5616909A - Linear tracking arm unit - Google Patents
Linear tracking arm unitInfo
- Publication number
- JPS5616909A JPS5616909A JP9131779A JP9131779A JPS5616909A JP S5616909 A JPS5616909 A JP S5616909A JP 9131779 A JP9131779 A JP 9131779A JP 9131779 A JP9131779 A JP 9131779A JP S5616909 A JPS5616909 A JP S5616909A
- Authority
- JP
- Japan
- Prior art keywords
- point
- driving
- force
- floating
- constitute
- 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 remarkably increase the SN-ratio, by floating control of the arm base in noncontact utilizing the repulsion force by permanent magnets and providing the Hall elements at the center of the driving coil.
CONSTITUTION: The unit consists of the floating control parts 2, 3 to give a part of floating force in the direction of (z) and a suitable damping to the arm base 1, control part 4 to hold the force in the direction of (y) (tangential direction of record grooves), and driving part 5 to make the movement in the direction of (x) (tracking direction). The floating control part 2 has the permanent magnets 10, 11 in strip shape having different surface magnet poles 10a, 10b and 11a, 11b, and it is provided with the driving coils 12a, 12b, to constitute the electromagnetic driving means. A constant current I flows to the Hall elements 13a, 13b to constitute the position detecting means, and if the current I and the magnetic flux B are as shown in figure, the potential at point (b) is higher than the point (a) and if the direction of the magnetic flux B is inverse, the potential at point (b) is lower than that at point (a).
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9131779A JPS5616909A (en) | 1979-07-18 | 1979-07-18 | Linear tracking arm unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9131779A JPS5616909A (en) | 1979-07-18 | 1979-07-18 | Linear tracking arm unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5616909A true JPS5616909A (en) | 1981-02-18 |
Family
ID=14023078
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9131779A Pending JPS5616909A (en) | 1979-07-18 | 1979-07-18 | Linear tracking arm unit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5616909A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836448A (en) * | 1982-03-09 | 1983-03-03 | 帝人株式会社 | Laminate |
-
1979
- 1979-07-18 JP JP9131779A patent/JPS5616909A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836448A (en) * | 1982-03-09 | 1983-03-03 | 帝人株式会社 | Laminate |
| JPS6313823B2 (en) * | 1982-03-09 | 1988-03-28 | Teijin Ltd |
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