Patent ID: 7878591

Claim:
A chair providing sacral support, comprising: a seat having a seat frame; a backrest having a backrest frame with a generally central opening, the backrest frame having a front portion and a rear portion; a single flexible member connected to the backrest frame and extending across the central opening, the flexible member having a front surface and rear surface; a sacral support member connected to the backrest and positioned proximate the central opening and behind the flexible member, the sacral support including a first central support and a second outer support and the first support being configured to apply support through the flexible member to the sacrum of a user sitting on the seat and the second support connected to and extending laterally from the first support and being configured to apply a second distinct support to areas adjacent to the sacrum of the user, wherein the sacral support member is located behind the front surface of the flexible member; an adjustment member connected to the seat frame, the adjustment member configured to adjust the position of the sacral support member; an actuation portion of the adjustment member is connected to a support structure for the seat frame; and wherein the adjustment member includes an elongated portion that extends through the flexible member to the actuation portion.