WO2008087853A1 - Injection-molded body, method for manufacturing injection-molded body and molding die for manufacturing injection-molded body - Google Patents

Injection-molded body, method for manufacturing injection-molded body and molding die for manufacturing injection-molded body Download PDF

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Publication number
WO2008087853A1
WO2008087853A1 PCT/JP2008/000003 JP2008000003W WO2008087853A1 WO 2008087853 A1 WO2008087853 A1 WO 2008087853A1 JP 2008000003 W JP2008000003 W JP 2008000003W WO 2008087853 A1 WO2008087853 A1 WO 2008087853A1
Authority
WO
WIPO (PCT)
Prior art keywords
molded body
injection
lens section
manufacturing
molding die
Prior art date
Application number
PCT/JP2008/000003
Other languages
French (fr)
Japanese (ja)
Inventor
Takao Umezawa
Original Assignee
Oshima Electric Works Co., Ltd.
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
Priority claimed from JP2007005783A external-priority patent/JP4891097B2/en
Priority claimed from JP2007005784A external-priority patent/JP4891098B2/en
Application filed by Oshima Electric Works Co., Ltd. filed Critical Oshima Electric Works Co., Ltd.
Publication of WO2008087853A1 publication Critical patent/WO2008087853A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
    • B29C45/006—Joining parts moulded in separate cavities
    • B29C45/0062—Joined by injection moulding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/747—Lightning equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

At the time of manufacturing a side winker (1) by having a primary molded lens section (2) and a housing (4) abut to each other and then integrating them by secondary injection, difference in size and appearance of a side winker (1) due to thermal shrinkage generated at the lens section (2) is eliminated. At the time of fitting the lens section (2) in the housing (4), a space (S) formed between a die surface (Ya) of a molding die (Y) and a lens outer circumference surface (2c) due to thermal shrinkage is eliminated by pushing the lens section (2) outward to be biased, and the side winker having uniform size and excellent appearance is manufactured by performing the secondary injection in a status wherein the lens section (2) is abutting to the molding die (Y).Loer
PCT/JP2008/000003 2007-01-15 2008-01-08 Injection-molded body, method for manufacturing injection-molded body and molding die for manufacturing injection-molded body WO2008087853A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007005783A JP4891097B2 (en) 2007-01-15 2007-01-15 Injection molded body, method for manufacturing injection molded body, and mold for manufacturing injection molded body
JP2007-005784 2007-01-15
JP2007-005783 2007-01-15
JP2007005784A JP4891098B2 (en) 2007-01-15 2007-01-15 Injection molded body, method for manufacturing injection molded body, and mold for manufacturing injection molded body

Publications (1)

Publication Number Publication Date
WO2008087853A1 true WO2008087853A1 (en) 2008-07-24

Family

ID=39635858

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000003 WO2008087853A1 (en) 2007-01-15 2008-01-08 Injection-molded body, method for manufacturing injection-molded body and molding die for manufacturing injection-molded body

Country Status (1)

Country Link
WO (1) WO2008087853A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0584771A (en) * 1991-09-25 1993-04-06 Japan Steel Works Ltd:The Method and mold for producting hollow object
JP2002036289A (en) * 2000-07-31 2002-02-05 Oshima Denki Seisakusho:Kk Hollow molding and its manufacturing method
JP2002113743A (en) * 2000-05-26 2002-04-16 Oshima Denki Seisakusho:Kk Injection molded object and method for manufacturing the same
JP2002113741A (en) * 2000-05-26 2002-04-16 Oshima Denki Seisakusho:Kk Injection molded object and method for manufacturing the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0584771A (en) * 1991-09-25 1993-04-06 Japan Steel Works Ltd:The Method and mold for producting hollow object
JP2002113743A (en) * 2000-05-26 2002-04-16 Oshima Denki Seisakusho:Kk Injection molded object and method for manufacturing the same
JP2002113741A (en) * 2000-05-26 2002-04-16 Oshima Denki Seisakusho:Kk Injection molded object and method for manufacturing the same
JP2002036289A (en) * 2000-07-31 2002-02-05 Oshima Denki Seisakusho:Kk Hollow molding and its manufacturing method

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