Toyota Motor Engineering & Manufacturing North America, Inc.

Itoh Daisuke

Lindsay Anne-Allor Babian

Gregory Todd Donovan

Michael Sweers

Michael John Ebel

Shelley Bridget Szalay

A seat back assembly including a frame formed of a low density material such as expanded polypropylene (EPP) and a reinforcement structure encapsulated within the frame is provided. The reinforcement structure includes a load transferring surface extending between opposite ends of the seat back. Each end of the reinforcement structure is secured to a vehicle body structure. The reinforcement structure transfers a load placed upon the seat back assembly throughout the frame so as to maintain the structural integrity of the frame under a predetermined load. Specifically, the load transferring surface of the reinforcement structure is in contact with the frame and transfers the load across a predetermined area of the frame and to the vehicle body.

Seat back assembly with integral reinforcement structure

A seat back assembly including a frame molded from expanded polypropylene (EPP). The expanded polypropylene frame includes a first surface and a second surface. The EPP frame is molded so as to include at least one standoff. The standoff extends outwardly from the second surface into a contact surface. The contact surface is registered to engage a vehicle body structure. Thus when the seat back experiences a frontal load, the frontal load is transformed so as to compress the standoff, and also transfers a load to the vehicle body structure. The EPP frame may also be molded so as to encapsulate an armrest bracket for attaching a pivotable armrest, or attachment wires to secure the seat back assembly to the vehicle body. The EPP frame may also be molded to include a headrest.

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Ann Arbor, MI, United States of America

Itoh Daisuke