Self-supporting roof panel of plastic material for motor vehicles and the like
US4186232A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 27, 1978 |
| Grant date | Jan 29, 1980 |
| Priority date | — |
| Expiry date | Jun 27, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249992
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A self-supporting roof plate for motor vehicles and the like is disclosed, characterized in that said roof plate consists essentially of a composite structure comprising a plate of rigid thermoplastic material bonded to a layer of foamed plastic material having a thermo-acoustical insulating function, and a layer of an aesthetically pleasing plastic material, said multi-layer structure being so shaped as to include on opposite sides two hook-like or S-shaped arcuate strips forming elastically yielding strips, adapted for the assemblage of the structure against the roof body of the car, by snap-fitting said arcuate strips into grooves prearranged between the roof ceiling and the body sides of the vehicle. The rigid plate may be a box-type or similar structure. The arcuate strips may be obtained by the thermo-forming of the composite structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.