Patent ID: 7100944

Claim:
A method of attaching a seat belt to a seat belt tension sensor, comprising the steps of: a. placing a webbing of the seat belt through an opening in a first portion of the seat belt tension sensor and through an opening in a carriage of the seat belt tension sensor that is adapted to move relative to said first portion of said seat belt tension sensor when a tensile load is applied to said webbing, wherein said opening through said first portion of the seat belt tension sensor is narrower than a nominal width of said webbing; and b. preventing said webbing from generating a non-negligible force over a measurement range as a result of rubbing against a lateral side of said opening in said first portion of the seat belt tension sensor by constraining a width of a portion of the webbing to be narrower than a width of the opening in the first portion of the seat belt tension sensor by adapting the opening in the first portion of the seat belt tension sensor to be sufficiently wider than the opening of the carriage so that the webbing is prevented from contacting a side of the opening in the first portion of the seat belt tension sensor.