JPS5571516A - Manufacturing method for plastic ball set with metal ball - Google Patents

Manufacturing method for plastic ball set with metal ball

Info

Publication number
JPS5571516A
JPS5571516A JP14495178A JP14495178A JPS5571516A JP S5571516 A JPS5571516 A JP S5571516A JP 14495178 A JP14495178 A JP 14495178A JP 14495178 A JP14495178 A JP 14495178A JP S5571516 A JPS5571516 A JP S5571516A
Authority
JP
Japan
Prior art keywords
ball
plastic
metal ball
mold plate
cavity
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.)
Granted
Application number
JP14495178A
Other languages
Japanese (ja)
Other versions
JPS5838089B2 (en
Inventor
Kiyoshi Sakai
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.)
I Pex Inc
Original Assignee
Dai Ichi Seiko 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 Dai Ichi Seiko Co Ltd filed Critical Dai Ichi Seiko Co Ltd
Priority to JP14495178A priority Critical patent/JPS5838089B2/en
Publication of JPS5571516A publication Critical patent/JPS5571516A/en
Publication of JPS5838089B2 publication Critical patent/JPS5838089B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To enable the production of plastic ball set with a metal ball free from being positioned in an eccentric place, by first molding a part of a plastic ball by means of mold plates and by molding the rest of the ball in a subsequent process.
CONSTITUTION: A mold plate 11 is provided with a cavity being formed such that a semispherical concave portion 11a has the same radius as that of a metal ball and a narrow groove 11b cut therein. The other mold plate is provided with a cavity being formed such that a semispherical concave portion 12a has an equal radius to that of a finished plastic ball. After the metal ball is positioned in a given place in the cavity of the mold plate 11 and the mold plate 12 is then closed, resins are filled therein to form a semiprocessed plastic ball. The semiprocessed plastic ball is thus formed such that the metal ball 3 is set in the center of a plastic semispherical object 14 and is prevented from coming out by dint of a plastic band 15. The semifinished product is set in subsequent processing molds 16 and 17 wherein resins are filled to form a finished plastic ball set with the metal ball.
COPYRIGHT: (C)1980,JPO&Japio
JP14495178A 1978-11-25 1978-11-25 Manufacturing method for plastic balls with metal balls Expired JPS5838089B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14495178A JPS5838089B2 (en) 1978-11-25 1978-11-25 Manufacturing method for plastic balls with metal balls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14495178A JPS5838089B2 (en) 1978-11-25 1978-11-25 Manufacturing method for plastic balls with metal balls

Publications (2)

Publication Number Publication Date
JPS5571516A true JPS5571516A (en) 1980-05-29
JPS5838089B2 JPS5838089B2 (en) 1983-08-20

Family

ID=15373976

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14495178A Expired JPS5838089B2 (en) 1978-11-25 1978-11-25 Manufacturing method for plastic balls with metal balls

Country Status (1)

Country Link
JP (1) JPS5838089B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0513715U (en) * 1991-08-05 1993-02-23 積水化学工業株式会社 Valve body for synthetic resin check valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0513715U (en) * 1991-08-05 1993-02-23 積水化学工業株式会社 Valve body for synthetic resin check valve

Also Published As

Publication number Publication date
JPS5838089B2 (en) 1983-08-20

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