Injection mold
US8475156B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2011 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Feb 24, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C45/4435
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection mold for molding a product having a hook portion includes a stationary mold, a return pin, a movable mold, an ejector mechanism and a plurality of ejector pins for ejecting the product out of the injection mold. The movable mold defines an inserting perforation, a receiving groove and a receiving gap. The ejector mechanism includes a slide block located in the receiving groove, a supporting bar stretching into the receiving groove, and an inclined ejector pin having a tail at a top thereof movably inserted in the inserting perforation and fastened on the slide block. The slide block is pressed downward by the return pin when the injection mold is closed. When the injection mold is opened, the slide block drives the inclined ejector pin to move upward and sideward under an upward push of the supporting bar to make the hook portion parted from the tail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.