Patent ID: 7806439
Filing Date: 2010-10-05
Classification: B60R

Abstract:
1. A motor vehicle seat belt system comprising: seat belt webbing having an upper anchorage and a lower anchorage; a retractor engaging an end of the webbing at the upper anchorage or the lower anchorage for allowing extraction and retraction of the webbing; a tongue engaging the seat belt webbing; a buckle engageable with the tongue to secure the seat belt webbing across an occupant, the buckle producing a latching signal which indicates a state of the buckle either being latched with the tongue or unlatched from the tongue; a D-ring rotatably mounted to a fixed member of the motor vehicle and positioned on the belt webbing between the upper anchorage and the tongue for positioning and guiding the webbing between the upper anchorage and the tongue; and a controlled locking mechanism controlled by a locking signal engageable with the D-ring for restricting the range of backward rotation of the D-ring when the latching signal indicates the tongue and the buckle is in the latched state.