Abstract: A chair that enables the occupant to be seated with correct posture. The chair (10) has a seat assembly (12) for supporting a person sitting on the chair. The seat assembly includes a seat frame (42) and sheet material (32) that is stretched and secured in place relative to the frame to support the weight of a person sitting on the chair by tension forces in the sheet material. The sheet material (32) includes a bead (58) along an edge thereof, the seat frame including an extruded section with a recess (56) into which the bead (58) is located. The bead (58) is secured in the recess (56) by a retaining member (60) so as to secure the sheet material (32) under tension to the seat frame (42).

Abstract: The present invention relates to chairs, and in particular to a chair which enables the occupant to be seated with correct posture. The invention also provides a novel method of assembly for a chair.

Abstract: A chair including a novel seat construction which includes in the illustrated embodiment a single sheet of fabric having a front support portion of relatively high resistance to resilient deformation and a rear support portion of relatively low resistance to resilient deformation. The differential deformation of the two regions locates an occupant's ischial tuberosity behind the forward support portion which thereby resists forward movement of the sitter from the chair to thus retain the sitter back in its correct position.

Abstract: A chair member for promoting correct posture. The chair member may form the chair seat or back rest or it may be a portable cushion. It includes a forward support portion of relatively high density resilient material and an adjacent rear support portion of relatively low density resilient material. In the seat embodiment, differential deformation of the two regions locates an occupant's ischial tuberosity behind the forward support portion which thereby resists forward movement of the sitter from the chair. The seat is preferably inclined.