Sash Seat belt

a seat belt , buckle

a sash or shoulder harness strap goes diagonally on vehicle occupant s outboard shoulder , buckled inboard of or lap. shoulder harness may attach lap belt tongue, or may have tongue , buckle separate of lap belt. shoulder harnesses of separate or semi-separate type installed in conjunction lap belts in outboard front seating positions of many vehicles in north american market starting @ inception of shoulder belt requirement of u.s. national highway traffic safety administration s federal motor vehicle safety standard 208 on 1 january 1968. however, if shoulder strap used without lap belt, vehicle occupant submarine , or slide forward in seat , out under belt, in frontal collision. in mid-1970s, 3-point belt systems such chrysler s uni-belt began supplant separate lap , shoulder belts in american-made cars, though such 3-point belts had been supplied in european vehicles such volvos, mercedes, , saabs years.