Patent ID: 7556313
Filing Date: 2009-07-07
Classification: A47C,B60N

Abstract:
1. A headrest assembly for a seat, comprising: at least one support post extending upwardly from the seat; a headrest body attached to the at least one support post; a padded portion in pivotal communication with the headrest body and in substantial alignment with a predetermined point, wherein the padded portion comprises a linkage assembly; and an active material actuator in a cooperative relationship with the padded portion, wherein the active material actuator is adapted to move the padded portion forward and/or upward relative to the headrest body upon receipt of an activation signal; and wherein the active material based actuator comprises a bracket, an axle for rotatably supporting the bracket at each end, and a first shape memory alloy wire adapted to rotate the bracket upon activation of the first shape memory alloy wire.