JPS6453819A - Molding of turn table - Google Patents

Molding of turn table

Info

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
Application number
JP21230887A
Other languages
Japanese (ja)
Other versions
JPH0558368B2 (en
Inventor
Takeshi Kubota
Yoshiyuki Fujinaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sharp Corp
Original Assignee
Sharp Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sharp Corp filed Critical Sharp Corp
Priority to JP21230887A priority Critical patent/JPS6453819A/en
Publication of JPS6453819A publication Critical patent/JPS6453819A/en
Publication of JPH0558368B2 publication Critical patent/JPH0558368B2/ja
Granted legal-status Critical Current

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.
JP21230887A 1987-08-25 1987-08-25 Molding of turn table Granted JPS6453819A (en)

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)

Also Published As

Publication number Publication date
JPH0558368B2 (en) 1993-08-26

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