Seat weight measuring apparatus
US6571647B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2000 |
| Grant date | Jun 3, 2003 |
| Priority date | — |
| Expiry date | Mar 9, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2210/42
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In order to provide a seat weight measuring apparatus in which the performance of load sensors is not spoiled due to dimensional error or deformation of a vehicle body or a seat and provides higher precision measurement, a seat weight measuring apparatus is provided for measuring a seat weight including the weight of a passenger sitting thereon and comprises load sensors for converting at least parts of the seat weight into electric signals and a dislocation/deflection absorbing mechanism (pin brackets and pins) arranged between a seat and the load sensors. Each load sensor comprises a cantilever-type sensor plate which is deformable when subjected to load, and a plurality of strain gauges attached to one surface (strain measuring surface) of the sensor plate. The load sensor is so structured that one of the strain gauges is subjected to tensile strain while the other one of the strain gauges is subjected to the compressive strain when the sensor plate is subjected to the applied load and is thus deformed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.