Patent ID: 7318622

Claim:
A convertible seat configured to accommodate an aircraft passenger, comprising: a frame; a sitting portion borne by the frame and including a first end and a second end opposite the first end; and a back, wherein the seat is configured to change from a seated position in which the back forms an angle with a horizontal sitting portion to a lying-down position in which the back has a substantially level surface configured to accommodate the passenger in the lying-down position, and when the seat is in the seated position, the back is closer to the first end than to the second end, wherein the frame is a fixed frame, and the seat further comprises guiding means for changing the back from its seated position to a substantially horizontal position, and at least one additional berth cooperating with the back to form the substantially level surface configured to accommodate the passenger in the lying-down position, the at least one additional berth is located closer to the second end than to the first end when the seat is in the lying-down position, and the sitting portion is in a same position relative to the frame when the seat is in the seated position as when the seat is in the lying-down position.