Patent ID: 6779210
Filing Date: 2004-08-24
Classification: A47C,A61G

Abstract:
A patient's bed of adjustable height comprising two bed ends and a rise and fall mattress support supported by the two bed ends, each bed end comprising:an outer frame, a static frame stationary secured within Lie outer frame and having a pair of styles joined by an upper rail and a lower rail, a pair of upright, mutually parallel carriage guides positioned inboard of the styles, a pair of carriages slidably engaging the carriage guides respectively, a cross member mutually connecting the carriages and free to ride between a high position and a low position, the mattress support being borne by the cross member and free to ride with the cross member, a nut fixed to the cross member, a screw extending between the upper and lower rails, the screw being in threaded engagement with the nut, and a drive mechanism mounted to the bed end and coupled to the screw for rotating the screw relative to the nut.