Patent ID: 6725727
Filing Date: 2004-04-27
Classification: G01L

Abstract:
A tension sensing assembly for a seat restraint system in a vehicle comprising:a sensor plate adapted to be fixed relative to vehicle structure; a movable anchor plate adapted to be connected to belt webbing of the seat restraint system and movable relative to the sensor plate; a housing mounted to said sensor plate; a movable actuator disposed in said housing; at least one spring disposed between said housing and said actuator; at least one magnet mounted to either one of said actuator and said housing; a Hall effect sensor mounted to either one of said housing and said actuator and cooperable with said at least one magnet; and said anchor plate having a tab portion extending through said housing and cooperable with said actuator to move said actuator to deflect said at least one spring, said actuator moving to change a distance between said at least one magnet and said Hall effect sensor to change an output of said Hall effect sensor to indicate a tension level in the seat restraint system when said at least one spring is deflected.