Passenger and wheelchair securement system for vehicles

In a vehicle having a floor area for securement of a wheelchair having frame structure, securement system improvements comprising:

• a) elongated tie-down track means secured to said vehicle floor area, said elongated tie-down track means including spaced apart and generally parallel tie-down track sections having a series of attachment means along the length thereof at predetermined intervals, each of said spaced apart track sections being located on the floor to secure a side of said wheelchair frame structure,
• b) first securement belt means for said wheelchair frame structure, said first belt means including belt means for the forward and rearward parts of said frame structure on each side thereof so that four said first securement belt means attach to said attachment means on said track sections and attach to said forward and rearward parts of said wheelchair frame structure to securely hold said wheelchair in its designated floor area,
• c) wheelchair occupant belt securement means including a lap belt means which secures to track sections at both ends thereof at either side of said wheelchair and which detachably buckles between the ends thereof, and
• d) occupant shoulder harness means having a floor strap one end of which attaches to anchoring means to the rear of and generally central to said track sections and which said harness means includes a double shoulder strap portion so that one shoulder portion passes over each shoulder of the occupant, each said shoulder portion detachably connecting to said lap belt and converging to be connected to each other to the rear of the occupant, wherein the occupant belt securement means is independent of said wheelchair frame structure first securement belt means,
• e) a "D" ring means disposed between said double shoulder strap means and said floor strap such that the floor strap is secured thereto and said double shoulder strap portion loops through and slides with respect to said "D" ring to permit the pressure on both shoulders of the chair occupant to be equalized by allowing said double shoulder strap means to slide through said ring,
• f) stanchion means provided to the rear of said chair and attached to said track means independently of securement for said wheelchair frame and for said occupant, said "D" ring means of said shoulder harness means being located generally rearwardly of said occupant's shoulders and forwardly of said stanchion means so that said floor strap means passes over said stanchion means to said anchoring means to the rear of said stanchion.