Slide core mold and injection molding
US4889480A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1988 |
| Grant date | Dec 26, 1989 |
| Priority date | — |
| Expiry date | Dec 2, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/058
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A slide core mold for injection molding wherein a slider block provided in its front surface with an undercut core is slidably provided on the side of a core mold, a pressure receiving inclined surface provided with guide grooves in opposite sides being provided at the back thereof, projections fitted into said guide grooves are provided on opposite sides at a corresponding position of a cavity mold corresponding thereto, a block body formed in its front surface with a pressing inclined surface in contact with the pressure receiving inclined surface of the back of the slider block is projected, and the slider block is reciprocated in association with engagement and disengagement of the core mold and the cavity mold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.