Patent ID: 7887137

Claim:
A chair comprised of: a frame; at least one of a seat component and backrest component, the seat component and backrest component having a base member and a detachable member; the base member connected to said frame; complementary clip means on the base member to cooperate with the detachable member, whereby the detachable member can be clipped to the base member; and a toggle joint comprising one of the base member and the detachable member having a pivot portion and a first brace portion spaced apart from each other by a first distance and the other of the base and the detachable member having a pivotally mounted first toggle plate, having a pivotally mounted end and a free end and the toggle plate having a toggle plate length between the pivotally mounted end and the free end, and a second brace portion, the first distance being greater than the distance between the pivotally mounted end of the first toggle plate and the second brace portion and less than the distance between the pivotally mounted end of the first toggle plate plus the toggle plate; wherein the base and the detachable member may be releasably connected by arranging the first brace portion against the second brace portion and by positioning of the free end of the first toggle plate in to the first pivot point and snapping the base and detachable component member together such that the toggle plate pivots around the first pivot point at the free end, putting one of the base and the detachable member under tension and the other of the base and the detachable member under compression.