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JPS56137923A - Manufacture of inserting molding - Google Patents

Manufacture of inserting molding

Info

Publication number
JPS56137923A
JPS56137923A JP4175480A JP4175480A JPS56137923A JP S56137923 A JPS56137923 A JP S56137923A JP 4175480 A JP4175480 A JP 4175480A JP 4175480 A JP4175480 A JP 4175480A JP S56137923 A JPS56137923 A JP S56137923A
Authority
JP
Japan
Prior art keywords
mold
synthetic resin
opposed
projection
cord
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
JP4175480A
Other languages
Japanese (ja)
Inventor
Shinichiro Takahashi
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP4175480A priority Critical patent/JPS56137923A/en
Publication of JPS56137923A publication Critical patent/JPS56137923A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To maintain an inserting article in synthetic resin in a fixed shape and fix it positively and easily by a method wherein the second mold is opposed to the first mold holding the inserting article, the first projection of synthetic resin is conducted and the first mold is removed.
CONSTITUTION: A cord 4, being an inserting article, is held to the first mold 1 functioning as a lower mold in the first projection process of synthetic resin, the scond mold serving as a cope is opposed to the mold 1, the first projection of the synthetic resin 8 is conducted into a void 7 and the first metal mold 1 is separated from the second mold 5. The third mold 9 functioning as a drag in the second projection process of the synthetic resin is opposed to the second mold 5, and the second mold 5 is separated from the third mold 9. An under-cut section is formed to a mold groove 10 previously made up to the mold 9 or the synthetic resin 8 is pushed out from the mold 5 so that the synthetic resin 8 remains in the third mold 9 at that time. The synthetic resin 8 is removed from the third mold 9, thus obtaining a head band 12 into which the cord 4 is buried.
COPYRIGHT: (C)1981,JPO&Japio
JP4175480A 1980-03-31 1980-03-31 Manufacture of inserting molding Pending JPS56137923A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4175480A JPS56137923A (en) 1980-03-31 1980-03-31 Manufacture of inserting molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4175480A JPS56137923A (en) 1980-03-31 1980-03-31 Manufacture of inserting molding

Publications (1)

Publication Number Publication Date
JPS56137923A true JPS56137923A (en) 1981-10-28

Family

ID=12617199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4175480A Pending JPS56137923A (en) 1980-03-31 1980-03-31 Manufacture of inserting molding

Country Status (1)

Country Link
JP (1) JPS56137923A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009149274A (en) * 2007-12-25 2009-07-09 Railway Technical Res Inst Double-type shock absorber tightening structure
JP2014127756A (en) * 2012-12-25 2014-07-07 Sdk Kk Headband
GB2528136A (en) * 2014-07-10 2016-01-13 Tung Hing Plastic Manufactory Ltd User-adjustable headband and method of manufacture thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893659A (en) * 1972-03-14 1973-12-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4893659A (en) * 1972-03-14 1973-12-04

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009149274A (en) * 2007-12-25 2009-07-09 Railway Technical Res Inst Double-type shock absorber tightening structure
JP2014127756A (en) * 2012-12-25 2014-07-07 Sdk Kk Headband
GB2528136A (en) * 2014-07-10 2016-01-13 Tung Hing Plastic Manufactory Ltd User-adjustable headband and method of manufacture thereof
US9763507B2 (en) 2014-07-10 2017-09-19 Tung Hing Plastic Manufactory Ltd. User-adjustable headband and method of manufacture thereof
GB2528136B (en) * 2014-07-10 2020-05-27 Tung Hing Plastic Manufactory Ltd User-adjustable headband and method of manufacture thereof

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