VEHICULAR SEAT ASSEMBLY HAVING A CAM DRIVEN SELF POSITIONING HEAD RESTRAINT

摘要

A seat assembly (10) comprises a seat cushion (12) having front and rear portions, and a seat back (14) having upper and lower portions. The seat back (14) is operatively connected at the lower portion to the rear portion of the seat cushion (12) for pivotal movement relative to the seat cushion (12) between a plurality of reclined seating positions and a forwardly folded flat position. The seat back (14) further includes a front surface for supporting the back of an occupant seated on the seat assembly (10). A head restraint (42) having a front surface for supporting the head of the occupant seated on the seat assembly (10) is pivotally coupled to the upper portion of the seat back (14) and moveable relative to the seat back between a plurality of angled head supporting positions and a forwardly folded stowed position defined by the front surface of the head restraint being generally perpendicular to the front surface of the seat back (14). The seat assembly (10) further includes a mechanism operatively interconnecting the head restraint (42) to the seat back (14) for providing automatic and continuous pivotal adjustment of the head restraint (42) to one of the head supporting positions in response to pivotal adjustment of the seat back to one of the reclined seating positions. The mechanism further provides automatic and continuous pivotal movement of the head restraint (42) between one of the head supporting positions and the stowed position in response to pivotal adjustment of the seat back (14) between one of the reclined seating positions and the forwardly folded positions.