JPS6453819A - Molding of turn table - Google Patents
Molding of turn tableInfo
- Publication number
- JPS6453819A JPS6453819A JP21230887A JP21230887A JPS6453819A JP S6453819 A JPS6453819 A JP S6453819A JP 21230887 A JP21230887 A JP 21230887A JP 21230887 A JP21230887 A JP 21230887A JP S6453819 A JPS6453819 A JP S6453819A
- Authority
- JP
- Japan
- Prior art keywords
- base part
- turn table
- thickness
- molding
- disc
- 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
- Injection Moulding Of Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To mold a turn table having uniform thickness, by molding at first a base part of the turn table and then molding a disc part thereon. CONSTITUTION:At first, a top force 6 and a bottom force 7 are brought into tight contact and a base part 9 of a turn table 8 is molded by pouring a molten synthetic resin into a space thereby formed and cooling and solidified it. Then, the top force 6 is taken off and the second top force 10 is set on the base part 9 and is brought into tight contact with the bottom force 7. A ring-shaped space is thereby formed between a ring-shaped groove 11 and the upper face of the outer circumferential part of the base part 9. A ring-shaped disc supporting part 12 of the turn table 8 is formed on the base part 9 by pouring therein a molten synthetic resin. When the thickness of the base part 9 is small, the thickness of the disc supporting part 12 accordingly becomes large and when the thickness of the base part 9 is large, the thickness of the disc supporting part 12 accordingly becomes small. The disc surface becomes thereby sufficiently flat.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21230887A JPS6453819A (en) | 1987-08-25 | 1987-08-25 | Molding of turn table |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21230887A JPS6453819A (en) | 1987-08-25 | 1987-08-25 | Molding of turn table |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6453819A true JPS6453819A (en) | 1989-03-01 |
JPH0558368B2 JPH0558368B2 (en) | 1993-08-26 |
Family
ID=16620412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21230887A Granted JPS6453819A (en) | 1987-08-25 | 1987-08-25 | Molding of turn table |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6453819A (en) |
-
1987
- 1987-08-25 JP JP21230887A patent/JPS6453819A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0558368B2 (en) | 1993-08-26 |
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