| 主权项 |
1. A collapsible chair that is movable between a deployed configuration and a collapsed configuration, comprising:
a collapsible seat, the seat comprising a seat membrane, a front portion, and an opposing rear portion; a collapsible back comprising a first back support member, a second back support member, and a back membrane coupled to the first and second back support members and spanning a distance between the first and second back support members; and at least two pivotally connected members that brace the back; wherein the first and second back support members each has a substantially linear upper portion that transitions into an arcuate lower portion, each lower portion defining a convex curve; wherein the arcuate lower portions each extending convexly toward the front portion of the chair; wherein, when the chair is in the deployed configuration, the at least two pivotally connected members are constructed and arranged to brace the back so that when the chair is in the deployed configuration, the back membrane is generally evenly taut and generally follows the contour of the back support members, to form a convexly-curved lower lumbar support region; wherein the seat is constructed and arranged such that the seat membrane collapses and folds in the collapsed configuration, and wherein the back is constructed and arranged such that the back support members are adapted to be moved together wherein the back membrane collapses and folds in the collapsed configuration. |
