JP4357687B2 - スピーカ用発泡樹脂振動板の射出成形金型 - Google Patents

スピーカ用発泡樹脂振動板の射出成形金型 Download PDF

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Publication number
JP4357687B2
JP4357687B2 JP2000054995A JP2000054995A JP4357687B2 JP 4357687 B2 JP4357687 B2 JP 4357687B2 JP 2000054995 A JP2000054995 A JP 2000054995A JP 2000054995 A JP2000054995 A JP 2000054995A JP 4357687 B2 JP4357687 B2 JP 4357687B2
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Japan
Prior art keywords
sprue
center pin
protruding
foamed resin
injection mold
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Expired - Fee Related
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JP2000054995A
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Japanese (ja)
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JP2001239559A5 (enExample
JP2001239559A (ja
Inventor
武弘 榎本
隆志 森本
信也 溝根
清 池田
裕子 山崎
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.)
Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2000054995A priority Critical patent/JP4357687B2/ja
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Publication of JP2001239559A5 publication Critical patent/JP2001239559A5/ja
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  • Moulds For Moulding Plastics Or The Like (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
JP2000054995A 2000-02-29 2000-02-29 スピーカ用発泡樹脂振動板の射出成形金型 Expired - Fee Related JP4357687B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000054995A JP4357687B2 (ja) 2000-02-29 2000-02-29 スピーカ用発泡樹脂振動板の射出成形金型

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000054995A JP4357687B2 (ja) 2000-02-29 2000-02-29 スピーカ用発泡樹脂振動板の射出成形金型

Publications (3)

Publication Number Publication Date
JP2001239559A JP2001239559A (ja) 2001-09-04
JP2001239559A5 JP2001239559A5 (enExample) 2007-01-11
JP4357687B2 true JP4357687B2 (ja) 2009-11-04

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JP2000054995A Expired - Fee Related JP4357687B2 (ja) 2000-02-29 2000-02-29 スピーカ用発泡樹脂振動板の射出成形金型

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JP (1) JP4357687B2 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012129726A1 (en) 2011-03-30 2012-10-04 Faurecia Innenraum Systeme Gmbh Injection mould product ejection apparatus and method

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JP2001239559A (ja) 2001-09-04

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