Method for the production of a coil body with connecting pins incorporated in the course of injection
US4135297A · kind A · utility
9Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1977 |
| Grant date | Jan 23, 1979 |
| Priority date | — |
| Expiry date | Mar 18, 1997 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49986
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing injected-molded coil cores having connecting pins embedded in radially extending thin core flanges wherein the cores are formed in a mold having a parting line in the area of desired placement of the pins, the pins are placed into the mold at the time of mold closure and one of the mold faces is equipped with a projecting striker which engages and bends the pin during mold closure, the mold thereafter being filled with injection material which at least partially surrounds the bent portion of the pin while forming the flange embedding portions of the pin, including the bent portion, in the flange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.