JPS6440309A - Manufacture of insert-incorporated resin molded item - Google Patents
Manufacture of insert-incorporated resin molded itemInfo
- Publication number
- JPS6440309A JPS6440309A JP19610287A JP19610287A JPS6440309A JP S6440309 A JPS6440309 A JP S6440309A JP 19610287 A JP19610287 A JP 19610287A JP 19610287 A JP19610287 A JP 19610287A JP S6440309 A JPS6440309 A JP S6440309A
- Authority
- JP
- Japan
- Prior art keywords
- insert
- recessed
- ring
- pressure ring
- sealing ring
- 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
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To prevent resin from entering in the recessed parts of an insert by a method wherein a small diametral part is provided by making a step at the tip part of each of insert set pins so as to slidably and externally insert a pressure ring and install an elastic sealing ring between the pressure ring and the step. CONSTITUTION:Each set pin 1 is provided so as to pierce through the wall of a mold and be protrusible in and retractable from a cavity 50. A small diametral part 11, which is formed by reducing the outer diameter with a step, is provided at the tip part of the set pin so as to slidably and externally insert a pressure ring 4 and at the same time install a sealing ring made of elastic member between the pressure ring 4 and the step. When each small diametral part 11 is pushed in the innermost part of a recessed part 21 under the state that the tip parts of the set pins 1 are inserted in the recessed parts 21 formed at both the ends of an insert 2, each elastic sealing ring 3 is compressed and enlarged radially, resulting in urging the outer peripheral surface of the ring against the inner wall surface of the recessed part 21 so as to seal the opening part of the recessed part. Accordingly, even when thermosetting resin is filled to the upper and lower surfaces of the insert 2 and pressure-molded between molds 5a and 5b, no entrance of the resin in the recessed parts 21 occurs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19610287A JPH07115360B2 (en) | 1987-08-05 | 1987-08-05 | Manufacturing method of resin molded products with built-in insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19610287A JPH07115360B2 (en) | 1987-08-05 | 1987-08-05 | Manufacturing method of resin molded products with built-in insert |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6440309A true JPS6440309A (en) | 1989-02-10 |
| JPH07115360B2 JPH07115360B2 (en) | 1995-12-13 |
Family
ID=16352260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19610287A Expired - Lifetime JPH07115360B2 (en) | 1987-08-05 | 1987-08-05 | Manufacturing method of resin molded products with built-in insert |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07115360B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4879361A (en) * | 1987-03-26 | 1989-11-07 | Basf Aktiengesellschaft | Preparation of bead polymers from water-soluble, ethylenically unsaturated monomers |
-
1987
- 1987-08-05 JP JP19610287A patent/JPH07115360B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4879361A (en) * | 1987-03-26 | 1989-11-07 | Basf Aktiengesellschaft | Preparation of bead polymers from water-soluble, ethylenically unsaturated monomers |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07115360B2 (en) | 1995-12-13 |
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