Work vehicle roof structure
US6279978A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Oct 5, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2013/0287
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The operator's cab of a work vehicle is provided with a ROPS on which is mounted a roof structure. The roof structure is provided with a roof having a top surface exposed to the outside and a bottom surface facing the interior of the operator's compartment. A sound insulating foam liner having a top surface and a bottom surface is located under the roof. The top surface of the foam liner is secured to the bottom surface of the roof by adhesives. The bottom surface of the foam liner is provided with ventilating channels. The ventilating channels have two sidewalls and a top wall extending between the sidewalls. A headliner is located below the foam liner. The headliner has a top surface facing the bottom surface of the foam liner and a bottom surface facing the interior of the operator's compartment. The top surface of the headliner encloses the ventilating channels formed in the foam liner thereby forming ventilating ducts. The top surface of the headliner forming the bottom wall, whereas the foam liner forms the two sidewalls and the top wall of the ventilating duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.