Seat belt tension sensor
US6450534B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 25, 2001 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | May 25, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/0155
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seat belt sensor for attachment to a seat belt in a vehicle. The seat belt tension sensor has a substrate with a top surface, a bottom surface and a pair of slots therethrough. The seat belt passes through the slots. The substrate has a pair of apertures. An actuator bar is located adjacent the top surface and has a first and second end that pass through the apertures. The seat belt passes over the actuator bar. A load beam is attached to the substrate and has a first and second end. The ends of the actuator bar contact the ends of the load beam. Strain sensitive resistors are located on the load beam. The seat belt, when placed in tension, causes the actuator bar ends to flex the ends of the load beam placing stress on the strain sensitive resistor. The strain sensitive resistor generates an electrical in response to being placed under stress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.