Patent ID: 8387176
Filing Date: 2013-03-05
Classification: A47C,F16H,Y10T

Abstract:
1. A rotational mechanism for extending a furniture piece, comprising: a first rotatable member configured to rotate about a first axis; a second rotatable member configured to rotate about a second axis; a link mechanism attached to both the first and second rotatable members, wherein the link mechanism is moveable along a length of the second rotatable member; a drive mechanism configured to position the moveable link at positions along the length of the second rotatable member such that movement of the link mechanism causes both the first and second rotatable mechanisms to rotate; and a folding mattress support frame, wherein the first rotatable member is connected to the folding mattress support frame such that rotation of the first rotatable member moves the folding mattress su ort frame from a folded sitting position to an unfolded reclining and fully extended sleep position, and wherein the folding mattress support frame comprises three sections pivotally connected together end-to-end, being: wherein the first section is locked at a fixed acute angle to the first rotatable member.