Seat assembly having a moveable headrest assembly

A seat assembly comprising:

• a seat back;
• a support post assembly having a first post that has a first end portion that is disposed in the seat back and a second end portion disposed opposite the first end portion, the second end portion having a U-shaped configuration that is curved such that a distal end of the second end portion extends toward the seat back;
• and
• a headrest assembly configured to move along the support post assembly between a first position and a second position, the headrest assembly including first and second mounting plates that cooperate to at least partially define a post cavity that receives the support post assembly, wherein the first mounting plate includes a first set of ribs, wherein members of the first set of ribs are spaced apart from each other and extend from the first mounting plate toward the second mounting plate;
• wherein the second end portion engages each member of the first set of ribs when the headrest assembly is disposed between the first and second positions.

A seat assembly comprising:

• a seat back;
• a support post assembly extending from the seat back;
• a headrest assembly moveably disposed on the support post assembly, the headrest assembly including:
• a mounting unit that defines a post cavity that receives the support post assembly, the mounting unit having a guide member opening;
• and
• first and second housings that cooperate to receive the mounting unit, at least one of the first and second housings having a guide member that extends through the guide member opening and that includes a set of notches;
• and
• a latch mechanism that includes:
• a first latch member that is moveably disposed on the mounting unit and configured to move between a latched position in which the latch member engages a member of the set of notches to inhibit movement of the headrest assembly away from the head of a seat occupant and an unlatched position to permit movement of the headrest assembly away from head of a seat occupant;
• and
• a first biasing member that biases the first latch member toward the latched position, the first biasing member having a first end and a second end disposed opposite the first end and that engages the mounting unit, wherein the first biasing member engages the first latch member between the first and second ends;
• wherein the first latch member includes first and second fingers that extend toward the first biasing member and that engage the mounting unit to guide movement of the first latch member.