JPS5766567A - Structure of vertical driver of tone arm - Google Patents
Structure of vertical driver of tone armInfo
- Publication number
- JPS5766567A JPS5766567A JP14242280A JP14242280A JPS5766567A JP S5766567 A JPS5766567 A JP S5766567A JP 14242280 A JP14242280 A JP 14242280A JP 14242280 A JP14242280 A JP 14242280A JP S5766567 A JPS5766567 A JP S5766567A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- frame
- couple
- pole
- fixed
- 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
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/02—Arrangements of heads
- G11B3/08—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers
- G11B3/085—Raising, lowering, traversing otherwise than for transducing, arresting, or holding-up heads against record carriers using automatic means
Abstract
PURPOSE:To obtain large torque with a small-sized constitution by providing a couple of coils in a gap between a yoke and a magnet so that it swivels freely, and coupling those coils with an arm frame. CONSTITUTION:A frame 2 is rectangular and at its lower end, a fixed plate 3 is provided as a fixed side. In the inside cavity part 2a of the frame 2, a semicircular magnet 4, a couple of yokes 5a and 5b, and a couple of fan-shaped vertical driving coils 6a and 6b are arranged. The lower part of the magnet 4 is fixed to the fixed plate 3 and divided into, for example, an upper and a lower halfs; while one surface 4a is magnetized with the upper half to the S pole and the lower half to the N pole, the other surface 4b is also magnetized with the upper half to the N pole and the lower half to the S pole. Then, a couple of yokes 5a and 5b are provided at proper intervals from both the surfaces 4a and 4b of the magnet 4. The magnet 4 is fixed vertically to the fixed plate 3 forming the fixed side and its fixation position is nearly in the center of the cavity part of the frame 2 while the magnet is in parallel to the side walls 2b and 2c of the frame 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14242280A JPS5766567A (en) | 1980-10-14 | 1980-10-14 | Structure of vertical driver of tone arm |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14242280A JPS5766567A (en) | 1980-10-14 | 1980-10-14 | Structure of vertical driver of tone arm |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5766567A true JPS5766567A (en) | 1982-04-22 |
Family
ID=15314955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14242280A Pending JPS5766567A (en) | 1980-10-14 | 1980-10-14 | Structure of vertical driver of tone arm |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5766567A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58183542A (en) * | 1982-04-20 | 1983-10-26 | Tamura Electric Works Ltd | Card transport path of card reader |
-
1980
- 1980-10-14 JP JP14242280A patent/JPS5766567A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58183542A (en) * | 1982-04-20 | 1983-10-26 | Tamura Electric Works Ltd | Card transport path of card reader |
JPS6221696B2 (en) * | 1982-04-20 | 1987-05-14 | Tamura Denki Seisakusho Kk |
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