Patent ID: 7654617
Filing Date: 2010-02-02
Classification: A47C

Abstract:
1. A chair seat for flexibly supporting a buttocks of a user seated thereon comprising: a seat surface; a pair of adjacent concentrically corrugated regions formed in the seat surface and disposed side-by-side and configured for flexibly supporting the buttocks of the user, the pair of adjacent concentric corrugated regions being deflectable with respect to the seat surface; a third corrugated region surrounding the pair of corrugated regions and configured for flexibly supporting the hips and thighs of the user, the third corrugated region being deflectable with respect to the seat surface; the corrugated regions comprising alternating rib tops and slot bottoms connected by substantially vertical sidewalls, and the slot bottoms being disposed below the seat surface; and the corrugated regions comprising a plurality of transverse notch lines extending upwards through the slot bottoms and sidewalls and traversing the plurality of concentrically corrugated regions, wherein the notch lines are configured for facilitating the downward bowing of the seat surface under a load.