Abstract: A vehicle seat for coupling to the floor of a vehicle comprising a seat back, a seat cushion, a first bracket, and a second bracket. The seat back is pivotable between at least a first position and a design position. The seat cushion is configured to be coupled to the vehicle floor. The first bracket is configured to be coupled to the vehicle floor and includes one of a keyed passage and a keyed pin configured to be received within the keyed passage. The second bracket is coupled to the seat back and includes the other one of the keyed passage and the keyed pin configured to be received within the keyed passage. The keyed passage is configured to receive the keyed pin only when the seat back is in a position the seat back will be prevented from assuming after the vehicle seat has been installed in the vehicle.

Abstract: A vehicle seat for coupling to the floor of a vehicle comprising a seat back, a seat cushion, a first bracket, and a second bracket. The seat back is pivotable between at least a first position and a design position. The seat cushion is configured to be coupled to the vehicle floor. The first bracket is configured to be coupled to the vehicle floor and includes one of a keyed passage and a keyed pin configured to be received within the keyed passage. The second bracket is coupled to the seat back and includes the other one of the keyed passage and the keyed pin configured to be received within the keyed passage. The keyed passage is configured to receive the keyed pin only when the seat back is in a position the seat back will be prevented from assuming after the vehicle seat has been installed in the vehicle.

Abstract: A vehicle seat which carries a passenger restraint system, namely a lap belt and a shoulder belt, with a tension load carrying member being provided to resist forward rotation and bending of the backrest frame during a frontal vehicle collision when the shoulder belt is loaded in tension. The tension load carrying member forms a truss structure with the frame back portion and the frame base portion. However, during normal vehicle operation, the tension load carrying member is detached from the frame back portion eliminating the truss structure and the need for a more complex recliner mechanism for adjusting the position of the backrest. A grip mechanism is provided to attach the load carrying member in response to a high shoulder belt load to complete the truss. In an alternative embodiment, the load carrying member is released from the backrest only during adjustment of the backrest.