JPS5571516A - Manufacturing method for plastic ball set with metal ball - Google Patents
Manufacturing method for plastic ball set with metal ballInfo
- 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
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
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)
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 |
-
1978
- 1978-11-25 JP JP14495178A patent/JPS5838089B2/en not_active Expired
Cited By (1)
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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