Passenger seat crash safety system
A safety system for aircraft passenger seats is described. A pallet that can be removably coupled to seats can also be removably coupled to the aircraft floor and one or more brackets, tension fittings, or machined straps that can be coupled to structural beams or components in an aircraft. A keel tension fitting can be attached to a keel beam and then be coupled to the pallet and thereby the seats. By attaching to the keel beam the safety system allows the seating arrangement (pallet and seats) to withstand greater stresses and forces, resulting in increased safety.
1. A seating system for an aircraft comprising:
a pallet configured to cover at least a portion of an aircraft floor and comprising;
one or more receptacles configured to receive an attachment mechanism from a seat; and
a first plurality of holes configured for a first plurality of bolts;
a keel tension fitting comprising;
one or more horizontal flanges comprising one or more holes and configured to be coupled to a bottom side of the aircraft floor and to the pallet by the first plurality of bolts;
one or more vertical flanges comprising two or more holes and configured to be coupled to a keel beam of the aircraft by a second plurality of bolts; and
a machine strap comprising;
at least one horizontal flange comprising at least one hole and configured to be coupled to the aircraft floor, the pallet, and the keel tension fitting by the first plurality of bolts; and
at least one vertical flange comprising at least two holes and configured to be coupled to a structural element of the aircraft by a third plurality of bolts.
2. The seating system of claim 1 wherein the keel tension fitting comprises one or more vertical ribs.
3. The seating system of claim 1 wherein the keel tension fitting comprises one or more horizontal ribs.
4. The seating system of claim 3 wherein some of the two or more holes are located both above and below the at least one of the one or more horizontal rib ribs.
5. The seating system of claim 1 wherein the keel tension fitting is configured to be coupled to a bulkhead of the aircraft.
6. The seating system of claim 5 wherein the keel tension fitting is configured to be coupled to the bulkhead by a fourth plurality of holes.
7. The seating system of claim 1 wherein the two or more holes are located both fore and aft of a bulkhead of the aircraft.
8. A passenger seat safety system for an aircraft comprising:
a pallet configured to be coupled to an aircraft floor and to be coupled to one or more passenger seats, the pallet comprising a first attachment means;
a keel tension fitting configured to be coupled to a keel beam of the aircraft and to an underside of the aircraft floor, the keel tension fitting configured to be coupled to the first attachment means of the pallet; and
a machine strap configured to be coupled to the aircraft floor and the pallet and sit between the aircraft floor and the pallet.
9. The passenger seat safety system of claim 8 wherein the keel tension fitting is further configured to be coupled to a bulkhead of the aircraft.
10. The passenger seat safety system of claim 8 wherein the keel tension fitting comprises one or more vertical ribs and one or more horizontal ribs.
11. The passenger seat safety system of claim 8 wherein the keel tension fitting comprises a vertical flange for coupling to the keel beam and a horizontal flange for coupling to an underside of the aircraft floor.
12. The passenger seat safety system of claim 8 wherein the keel tension fitting is configured to extend both fore and aft of a bulkhead of the aircraft.
13. The passenger seat safety system of claim 8 wherein the aircraft floor is coupled to the pallet and to the keel tension fitting by the first attachment means.
14. The passenger seat safety system of claim 8 wherein the first attachment means comprises one or more bolts.
15. A seating system for an aircraft comprising:
a pallet configured to cover at least a portion of an aircraft floor and comprising;
one or more receptacles configured to receive an attachment mechanism from a seat; and
a first plurality of holes configured for a first plurality of bolts; and
a keel tension fitting comprising;
one or more horizontal flanges comprising one or more holes and configured to be coupled to a bottom side of the aircraft floor and to the pallet by the first plurality of bolts;
one or more vertical flanges comprising two or more holes and configured to be coupled to a keel beam of the aircraft by a second plurality of bolts, wherein the two or more holes are located both fore and aft of a bulkhead of the aircraft.