Foaming die device adapted to effect foaming in trim cover assembly integrally to form headrest, and foaming process for forming headrest by effecting foaming in trim cover assembly integrally, using the foaming die device
US9840175B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2014 |
| Grant date | Dec 12, 2017 |
| Priority date | — |
| Expiry date | Sep 1, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/3023
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A foaming die device for forming a headrest is provided, which comprises a lower die having a first protrusion and an upper die having a second protrusion. The lower and upper dies are used for accommodating a trim cover assembly with a headrest stay portion extending outwardly through a stay passage hole formed in the trim cover assembly. The first and second protrusions are adapted to press and turn over a projected area created about the stay hole into the inside of that trim cover assembly. Also, a foaming process for forming the headrest, using this foaming die device, is provided, in which the projected area is turned over by the first and second protrusions into the trim cover assembly when placing the trim cover assembly in the dies. Hence, conventional preliminary steps using cylindrical stick to turn over the projected area into the trim cover assembly are eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.