JPS6430720A - Two-stage insert-molded product and manufacture thereof - Google Patents
Two-stage insert-molded product and manufacture thereofInfo
- Publication number
- JPS6430720A JPS6430720A JP18552287A JP18552287A JPS6430720A JP S6430720 A JPS6430720 A JP S6430720A JP 18552287 A JP18552287 A JP 18552287A JP 18552287 A JP18552287 A JP 18552287A JP S6430720 A JPS6430720 A JP S6430720A
- Authority
- JP
- Japan
- Prior art keywords
- molding part
- primary molding
- notch
- shaft hole
- primary
- 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
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE:To prevent local separation and poor weld from developing on the weld surface between a primary molding part and a secondary molding parts and consequently make it possible to bring the two molding parts into strong and close contact with each other by a method wherein at least either one of an inversed tapered notch and a fine groove is formed on the contact surface between the primary molding part and the secondary molding part and also splines are formed on the contact surface. CONSTITUTION:A continuous annular notch 8 is provided at the outer periphery of the out side end face 6a of a primary molding part 6 and a continuous annular fine groove 9 is provided inside the notch 8. The faces along the axis line of the notch 8 and of the fine groove 8 are formed in the inversed tapered shapes at an angle of 2-3 deg. toward an shaft hole 5. Further, a plurality of notches 10 are provided on the inner periphery of the out side end face be in the peripheral direction at fixed space intervals. A gap 11 is provided nearly along the total length of the shaft hole 5 so as to form a secondary molding part 7 between the primary molding part 6 and the shaft hole 5. A plurality of splines 12, which are parallel to the shaft center line, are provided on the inner peripheral surface of the primary molding part 6 in the peripheral direction at predetermined space intervals. Furthermore, a continuous annular kerf groove 13 is provided on a peripheral surface contacting the shaft hole 5 at the other end side end face 6d of the primary molding part 6. After the molding of the primary molding part 6, resin is injected in a cavity part for the second stage insert molding so as to form the secondary molding part 7 by filling the cavity part with resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62185522A JPH0628875B2 (en) | 1987-07-27 | 1987-07-27 | Two-step insert molding and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62185522A JPH0628875B2 (en) | 1987-07-27 | 1987-07-27 | Two-step insert molding and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6430720A true JPS6430720A (en) | 1989-02-01 |
| JPH0628875B2 JPH0628875B2 (en) | 1994-04-20 |
Family
ID=16172267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62185522A Expired - Lifetime JPH0628875B2 (en) | 1987-07-27 | 1987-07-27 | Two-step insert molding and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0628875B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215341A (en) * | 1990-05-10 | 1993-06-01 | Ebara Corporation | Structural member molded of resin having a metal ring insert and method of producing the same |
| US6997330B2 (en) * | 2003-02-20 | 2006-02-14 | Siderca S.A.I.C | Apparatus and method for storing or shipping elongated members |
| US8179502B2 (en) | 2003-12-15 | 2012-05-15 | Genoa Color Technologies Ltd. | Multi-color liquid crystal display |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5993333A (en) * | 1982-11-19 | 1984-05-29 | Sansho Giken Kk | Rotary part made of synthetic resin and manufacture thereof |
| JPS5983517U (en) * | 1982-11-30 | 1984-06-06 | 岐阜精機工業株式会社 | Inserts for injection molded products |
| JPS59132449U (en) * | 1983-02-25 | 1984-09-05 | 橋本フオ−ミング工業株式会社 | End cap attachment structure for resin molding |
| JPS60179591A (en) * | 1984-02-23 | 1985-09-13 | 積水化学工業株式会社 | Pipe joint made of synthetic resin and molding die thereof |
| JPS61222714A (en) * | 1985-03-28 | 1986-10-03 | Mitsubishi Electric Corp | Manufacture of resin molded body |
-
1987
- 1987-07-27 JP JP62185522A patent/JPH0628875B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5993333A (en) * | 1982-11-19 | 1984-05-29 | Sansho Giken Kk | Rotary part made of synthetic resin and manufacture thereof |
| JPS5983517U (en) * | 1982-11-30 | 1984-06-06 | 岐阜精機工業株式会社 | Inserts for injection molded products |
| JPS59132449U (en) * | 1983-02-25 | 1984-09-05 | 橋本フオ−ミング工業株式会社 | End cap attachment structure for resin molding |
| JPS60179591A (en) * | 1984-02-23 | 1985-09-13 | 積水化学工業株式会社 | Pipe joint made of synthetic resin and molding die thereof |
| JPS61222714A (en) * | 1985-03-28 | 1986-10-03 | Mitsubishi Electric Corp | Manufacture of resin molded body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5215341A (en) * | 1990-05-10 | 1993-06-01 | Ebara Corporation | Structural member molded of resin having a metal ring insert and method of producing the same |
| US6997330B2 (en) * | 2003-02-20 | 2006-02-14 | Siderca S.A.I.C | Apparatus and method for storing or shipping elongated members |
| US8179502B2 (en) | 2003-12-15 | 2012-05-15 | Genoa Color Technologies Ltd. | Multi-color liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0628875B2 (en) | 1994-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080420 Year of fee payment: 14 |