Patent ID: 7273231

Claim:
A seat belt assembly including a belt tension sensor, comprising: a connecting member for connecting the sensor to a vehicle body, a carriage of the belt tension sensor, wherein the carriage is adapted to engage a webbing of a seat belt and said carriage is adapted to move within a housing in opposition to at least one spring acting between the housing and the carriage, whereby the amount of movement is responsive to a tension in the seat belt, said carriage comprising: a. an opening adapted to receive the webbing of the seat belt, wherein said opening cooperates with a corresponding opening in the housing; and b. a protrusion extending from said carriage, wherein with said carriage is installed in the seat belt tension sensor, said protrusion extends beyond an outer surface bounding the housing and spanning across the opening in the housing; and wherein the portion of the webbing inserted into the opening is folded back from the both sides in the width direction, and the width is reduced by stitching the folded portion with the portion not folded.