Abstract: The present invention relates to a passive type seat belt mounting structure wherein the seat belt is forcibly loaded around the body of the occupant upon he/she sitting down in a vehicle seat and closing a door, wherein a shoulder retractor and a lap retractor around which a seat belt is wound is attached to a common bracket which is in turn attached to the interior of the door panel.

Abstract: The present invention provides a seat belt support structure wherein a bracket is fixedly secured on a door sash for holding an anchor plate which supports the seat belt, the seat belt support structure being characterized in that said bracket for fixedly securing the anchor plate is attached to the inner surface of the outer panel of said door sash and its attachment portion is concealed by a door glass run which is used to hold the door window glass, resulting in that screws do not project outwardly through the inner panel and a smooth sealing surface is ensured to seal a clearance between the door sash and the center pillar. Sealing members can thus be easily arranged and it is possible to improve sealing characteristics of the vehicle.