Sensor assembly for measuring weight applied to a vehicle seat
US7047825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2005 |
| Grant date | May 23, 2006 |
| Priority date | — |
| Expiry date | Jan 31, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2230/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Weight sensor assemblies for measuring weight on a vehicle seat are mounted at the connecting points between a seat bottom frame and a seat mounting member. The weight sensor assemblies each include a beam member having a bendable center body portion for supporting a strain gage. The strain gage and associated traces are screen printed on the surface of the beam. The beam acts similar to a dual constrained cantilever beam, concentrating the bending at a reduced neck section that narrows in the middle of the center body portion. The strain gage measures strain resulting from bending in the center body portion caused by a weight force being applied against the seat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.