Patent ID: 7395568
Filing Date: 2008-07-08
Classification: A47C

Abstract:
1. An adjustable mattress comprising: a first section and a second section overlying a common rigid planar platform, with respective upper surfaces of the first section and the second section moveable relative to each other and together forming at least a portion of a sleeping surface of the adjustable mattress; a first mechanical drive unit within the adjustable mattress, the first mechanical drive unit connected between the platform and at least one of the first section and the second section and providing a mechanical force to move the upper surface of the first section relative to the upper surface of the second section; and a flexible sheet comprising a first sheet member coextensive with the first section and a second sheet member coextensive with the second section and disposed between the first mechanical drive unit and bottom surfaces of the first and second sections, said flexible sheet being continuous in a longitudinal direction of the mattress at least across one of the first and second sections, wherein the first sheet member is attached to the second sheet member by an articulated hinge and a force of the first mechanical drive unit is distributed across a region of the first section by the first sheet member associated with that section.