Patent ID: 7537286

Claim:
A device for supporting a user's sacral anatomy in a seated position, the device comprising: a seat having a seat back with a front portion, a rear portion and a frame, the front portion including a support cushion therebehind; a support member operably connected to the frame; an adjustable sacral support member pivotally connected to the support member, an adjusting assembly, actuatable by a seated user, and connected to the sacral support member to move the sacral support member relative to the support member and thereby toward and away from a rear surface of the front portion of the seat back; a second support member operably connected to the frame and spaced from the sacral support member; a complementary support member operably connected to the second support member to permit the seated user to control the fit and comfort of the seat back to the spine and adjacent anatomical structures; wherein the sacral support member is operably connected to the complementary support member to provide a proportional support there between as the sacral support member and the complementary support member are actuated; an actuator operably connected to the adjusting assembly and sacral support member and the complementary support member, wherein the actuator is configured to control the position of the sacral support member and the complementary support member relative to the frame; and wherein the sacral support member is configured to extend a first maximum distance relative to the frame, and the complementary support member is configured to extend a second maximum distance relative to the frame, wherein the first maximum distance is greater than the second maximum distance.