Methods for forming and tuning the durability of breakaway sections on a trim panel
US10780843B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2018 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Apr 19, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2013/0293
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Doors for motor vehicles include door trim panel assemblies having multiple door trim panels held together at attachment points. A door trim panel includes a weakened perimeter formed from a series of apertures in the panel, creating a predetermined breakaway point where the assembly will rupture in the event a load is applied. Methods for tuning the durability of a trim panel assembly include a repeatable cycle in which pins are selected and inserted in a mold at varying positions. During injection molding, the pins form apertures to create a predetermined breakaway point. Changing the size, shape, and location of the pins allows tuning of the durability and properties of the breakaway point. Injection molds have variable pin placement capability to facilitate the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.