JPH01156021U - - Google Patents

Info

Publication number
JPH01156021U
JPH01156021U JP4742288U JP4742288U JPH01156021U JP H01156021 U JPH01156021 U JP H01156021U JP 4742288 U JP4742288 U JP 4742288U JP 4742288 U JP4742288 U JP 4742288U JP H01156021 U JPH01156021 U JP H01156021U
Authority
JP
Japan
Prior art keywords
mold
stamper
molding
optical disk
outer peripheral
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
Application number
JP4742288U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP4742288U priority Critical patent/JPH01156021U/ja
Publication of JPH01156021U publication Critical patent/JPH01156021U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Manufacturing Optical Record Carriers (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の一実施例の爪部を示す断面図
、第２図は同爪部の使用状態を示す断面図、第３
図は従来例の爪部を示す断面図、第４図、第５図
は同爪部による成形不良を示す成形品の部分的正
面図である。 １……内側スタンパ押え、２……樹脂通路面、
３……内周縁、４……爪部、５……スタンパ押え
面、６……内側面、７……外側面、８……頂面。 Fig. 1 is a sectional view showing the claw part of an embodiment of the present invention, Fig. 2 is a sectional view showing the usage state of the claw part, and Fig. 3 is a sectional view showing the claw part of an embodiment of the present invention.
The figure is a sectional view showing a conventional claw part, and FIGS. 4 and 5 are partial front views of a molded product showing molding defects caused by the claw part. 1...Inner stamper holder, 2...Resin passage surface,
3... Inner peripheral edge, 4... Claw portion, 5... Stamper pressing surface, 6... Inner surface, 7... Outer surface, 8... Top surface.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 光デイスク基板成形用金型の樹脂通路内に突出
した爪部を有する内側スタンパ押えにおいて、前
記爪部の外周面をスタンパに向かつて傾斜させる
と共に、該外周傾斜面を内側スタンパ押えのスタ
ンパ押え面内周縁より外側に形成したことを特徴
とする光デイスク基板成形用金型。 In an inner stamper holder having a claw protruding into the resin passage of a mold for molding an optical disk substrate, the outer peripheral surface of the claw is inclined toward the stamper, and the outer peripheral inclined surface is used as the stamper holding surface of the inner stamper holder. A mold for molding an optical disk substrate, characterized in that the mold is formed outward from the inner peripheral edge.
JP4742288U 1988-04-08 1988-04-08 Pending JPH01156021U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4742288U JPH01156021U (en) 1988-04-08 1988-04-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4742288U JPH01156021U (en) 1988-04-08 1988-04-08

Publications (1)

Publication Number Publication Date
JPH01156021U true JPH01156021U (en) 1989-10-26

Family

ID=31273632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4742288U Pending JPH01156021U (en) 1988-04-08 1988-04-08

Country Status (1)

Country Link
JP (1) JPH01156021U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03278339A (en) * 1989-03-31 1991-12-10 Hitachi Maxell Ltd Production of optical recording medium and transparent substrate for optical recording medium and mold for transparent substrate for optical recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63237921A (en) * 1987-03-26 1988-10-04 Meiki Co Ltd Injection mold for disk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63237921A (en) * 1987-03-26 1988-10-04 Meiki Co Ltd Injection mold for disk

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03278339A (en) * 1989-03-31 1991-12-10 Hitachi Maxell Ltd Production of optical recording medium and transparent substrate for optical recording medium and mold for transparent substrate for optical recording medium

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