Patent 7273231 was granted and assigned to Takata Corporation on September, 2007 by the United States Patent and Trademark Office.
A seat belt device including an anchor connecting member configured to be connected to the vehicle body, a webbing connecting member connected to the seat belt, and a webbing passing through an opening the webbing connecting member. The webbing located in the opening is folded and constrained from unfolding by stitching extending in a direction transverse to the longitudinal direction of the webbing. The device includes a sensor mechanism that detects a force acting between the anchor connecting member and the webbing connecting member.