Patent ID: 6336681
Filing Date: 2002-01-08
Classification: A47C

Abstract:
A seat member for a chair, the seat member includinga forward supporting portion and an adjacent rear supporting portion, both the forward and rear supporting portions each having a forward edge, a rearward edge and side edges, the rear supporting portion having a high resistance to resilient deformation, the forward supporting portion having a low resistance to resilient deformation, the resistance to resilient deformation of each portion being relative to the other portion, the rear supporting portion including a first layer and at least a second layer of foam material, the first layer of foam material having a low resistance to resilient deformation and the second layer of foam material having a high resistance to resilient deformation, the resistance to resilient deformation of each layer in the rear supporting portion being relative to the other layer, wherein the resistance to resilient deformation of at least one of the forward and rear supporting portions varies from the rearward edge to the forward edge of the portion.