JPS5672940A - Manufacture of composed product - Google Patents
Manufacture of composed productInfo
- Publication number
- JPS5672940A JPS5672940A JP14971479A JP14971479A JPS5672940A JP S5672940 A JPS5672940 A JP S5672940A JP 14971479 A JP14971479 A JP 14971479A JP 14971479 A JP14971479 A JP 14971479A JP S5672940 A JPS5672940 A JP S5672940A
- Authority
- JP
- Japan
- Prior art keywords
- retaining part
- molding
- rotary body
- chassis
- 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.)
- Pending
Links
Landscapes
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To enable smooth rotation by composing a base body and a rotary body rotatably with each other through molding thereof from synthetic resin and by eliminating a molding flash on the rotating surface.
CONSTITUTION: Melted synthetic resin such as ABS resin containing glass is injected into molding dies consisting of the 1st cavity 6 and a core 7 to form a chassis 1 and a retaining part 3 monolithically. Next, the core 7 being used commonly, the chassis 1 is pressed between the core 7 and the 2nd cavity 10 and thereby the tip of the retaining part 3 is transformed into a conical shape. Under the condition, polyacetal resin is injected into the 2nd cavity 10 and thus the rotary body 2 is molded secondarily. On the occasion, by the heat and the pressure of the mold in the secondary molding, the retaining part 3 is transformed into a conical shape. By this, the rotary body 2 turns to be rotatable within the retaining part 3. In addition, since no molding flash and the like are produced within the retaining part 3 of the chassis 1 which is the primary product, the rotation of the rotary body 2 is smooth.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14971479A JPS5672940A (en) | 1979-11-19 | 1979-11-19 | Manufacture of composed product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP14971479A JPS5672940A (en) | 1979-11-19 | 1979-11-19 | Manufacture of composed product |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5672940A true JPS5672940A (en) | 1981-06-17 |
Family
ID=15481209
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14971479A Pending JPS5672940A (en) | 1979-11-19 | 1979-11-19 | Manufacture of composed product |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5672940A (en) |
-
1979
- 1979-11-19 JP JP14971479A patent/JPS5672940A/en active Pending
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