JPS55132509A - Turn table unit - Google Patents
Turn table unitInfo
- Publication number
- JPS55132509A JPS55132509A JP3786879A JP3786879A JPS55132509A JP S55132509 A JPS55132509 A JP S55132509A JP 3786879 A JP3786879 A JP 3786879A JP 3786879 A JP3786879 A JP 3786879A JP S55132509 A JPS55132509 A JP S55132509A
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- rotary shaft
- turn table
- fixed
- constitution
- 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.)
- Granted
Links
Landscapes
- Rotational Drive Of Disk (AREA)
Abstract
PURPOSE: To reduce the damage to the bearing, by balancing the weight moment by the turn table and that by the permanent magnet so that uniform bearing surface pressure can be obtained.
CONSTITUTION: The DC brushless direct drive motor 1 provides the ring shape permanent magnet 2a and rotary shaft 5, to which the case 3 is coupled via the boss 4 with coking. The printed wiring board 8, coil 10 and coil winding frame 11 are fixed to the fixed plate 12. The bearing 6 is coupled to the rotary shaft in rotary-free. The turn table 16 is screwed to the rotary shaft 5. The DC motor 1 is fixed to the player board 15 via the spacer 13. With this constitution, it is possible to uniform the force exerted to the bearing, the vertical type record player excellent in wow flutter and S/N ratio can be obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3786879A JPS55132509A (en) | 1979-03-30 | 1979-03-30 | Turn table unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3786879A JPS55132509A (en) | 1979-03-30 | 1979-03-30 | Turn table unit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55132509A true JPS55132509A (en) | 1980-10-15 |
JPS6357870B2 JPS6357870B2 (en) | 1988-11-14 |
Family
ID=12509507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3786879A Granted JPS55132509A (en) | 1979-03-30 | 1979-03-30 | Turn table unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55132509A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5199501U (en) * | 1975-02-07 | 1976-08-10 |
-
1979
- 1979-03-30 JP JP3786879A patent/JPS55132509A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5199501U (en) * | 1975-02-07 | 1976-08-10 |
Also Published As
Publication number | Publication date |
---|---|
JPS6357870B2 (en) | 1988-11-14 |
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