JPS61197229A - Molding method for fine hole of synthetic resin sheet - Google Patents

Molding method for fine hole of synthetic resin sheet

Info

Publication number
JPS61197229A
JPS61197229A JP3979685A JP3979685A JPS61197229A JP S61197229 A JPS61197229 A JP S61197229A JP 3979685 A JP3979685 A JP 3979685A JP 3979685 A JP3979685 A JP 3979685A JP S61197229 A JPS61197229 A JP S61197229A
Authority
JP
Japan
Prior art keywords
molding
fine hole
mold
synthetic resin
resin sheet
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
JP3979685A
Other languages
Japanese (ja)
Inventor
Yoichi Honda
Yoshio Suzuki
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.)
Takara Co Ltd
Original Assignee
Takara 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
Application filed by Takara Co Ltd filed Critical Takara Co Ltd
Priority to JP3979685A priority Critical patent/JPS61197229A/en
Publication of JPS61197229A publication Critical patent/JPS61197229A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To manufacture a molded article having a definite fine hole without damaging a molding, by making use of a male mold having a somewhat long molding pin for forming the fine hole and a female mold having a drill-shaped recessed part corresponding to the male mold.
CONSTITUTION: A synthetic resin sheet 3 is molded by making use of a male mold 1 having a molding pin 5 which is somewhat longer (l) than a thickness (t) of a molded sheet and a female mold 2 having a drill-shaped recessed part 7 which is somewhat deeper (d) and is larger in its diameter than those of said molding pin 5. A fine hole 5A is made to penetrate through by braking off a boss 7A formed by said mold after molding. As the specific mold is used for the titled molding method, a through hole can be formed reliably without breaking the molding pin at the time of the molding.
COPYRIGHT: (C)1986,JPO&Japio
JP3979685A 1985-02-28 1985-02-28 Molding method for fine hole of synthetic resin sheet Pending JPS61197229A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3979685A JPS61197229A (en) 1985-02-28 1985-02-28 Molding method for fine hole of synthetic resin sheet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3979685A JPS61197229A (en) 1985-02-28 1985-02-28 Molding method for fine hole of synthetic resin sheet

Publications (1)

Publication Number Publication Date
JPS61197229A true JPS61197229A (en) 1986-09-01

Family

ID=12562913

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3979685A Pending JPS61197229A (en) 1985-02-28 1985-02-28 Molding method for fine hole of synthetic resin sheet

Country Status (1)

Country Link
JP (1) JPS61197229A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5868990A (en) * 1995-07-13 1999-02-09 Cascade Engineering, Inc. Injection molding parts with pinholes
CN105358316A (en) * 2013-06-27 2016-02-24 3M创新有限公司 Polymeric layers and methods of making the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5868990A (en) * 1995-07-13 1999-02-09 Cascade Engineering, Inc. Injection molding parts with pinholes
CN105358316A (en) * 2013-06-27 2016-02-24 3M创新有限公司 Polymeric layers and methods of making the same
CN105358316B (en) * 2013-06-27 2017-05-10 3M创新有限公司 Polymeric layers and methods of making the same

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