Seat belt control system

In a vehicle having a seat provided with a back which is foldable forwardly, a door port permitting access to said seat and to the area in rear thereof when said back is folded forwardly, a shoulder strap extending normally from a point behind said foldable back near the top of said vehicle downwardly to the upper corner of said back adjacent to said door port, a guide member having an aperture at the top through which the shoulder strap extends, said guide member having a downwardly extending rod, a tube on said foldable back in which the rod extends, a pair of interconnected pulleys of different diameter mounted near the base of said back, flexible means connecting the pulley of smaller diameter adjacent to the seat, flexible means connecting the pulley of large diameter to said rod whereby when the back is folded forwardly the rotation of the two pulleys due to the one flexible means wound on the pulley of smaller diameter operates the flexible member on the pulley of larger diameter to extend the rod and therefor the guide member a greater distance than would have occurred if the pulleys were of the same diameter.