Abstract: Collapsible kayak framework having a plurality of longitudinal members, formers and cockpit structure, which cockpit structure, when folded forms a portion of backpack frame. Longitudinal members extend between the bow and stern, and are releasably interconnected by the formers and the cockpit structure. Mid portions of the keelson, chine and gunwale member portions are interconnected so as to form two halves of a foldable cockpit structure, which halves are maintained apart when in the cockpit structure by releasable transverse deck members. The mid portions are hinged to each other for swinging together to form a compact frame forming basis of the backpack frame. When the structure is folded, the spaced transverse deck members extend downwardly from one gunwale member mid portion, lower ends of the deck members carrying ends of shoulder straps, and a belt portion to permit the complete folded kayak structure to be carried on a person's back.

Abstract: Folding chair structure having four legs, seat portion supported by lateral seat members, and back portion supported by lateral back members hinged to seat members. Forward leg members extend upwardly and rearwardly from a forward position on floor and are hinged at rear of seat portion and then extend upwardly as the lateral back members. Rear leg members extend upwardly and forwardly from a rear position on floor and are hinged at front of seat so that when viewed laterally, forward and rear leg members cross each other at an intersection. Cross links are hinged between respective forward and rear leg members on each side of the chair and below the intersection and, in combination with leg members and lateral seat members, provide a crossed four-bar mechanism below seat. Forward arm support is hinged to forward seat portion and support arm members which are also hinged to back portion, to form a four-bar mechanism approximating to a parallelogram above the seat.