Patent ID: 7191479

Claim:
A hospital bed capable of changing bed sheets without moving a patient thereon, comprising: a bedstead including a headboard, a footboard and a bed frame; a deformable bed top; and a spool rack with a roller shaft on each side, the spool rack being mounted transversely on the bed frame and moveable in a longitudinal direction of the bed, wherein two ends of the deformable bed top are fixed on the headboard and footboard, respectively, and the deformable bed top is pressed down between the roller shafts by the spool rack to form a tightened and leveled bed top that is sunken in the spool rack, wherein the spool rack includes two demountable roller axles each for rolling a bed sheet thereon, and wherein the roller axles and roller shafts are parallel to a transverse direction of the bed, and movable in the longitudinal direction between the headboard and the footboard with the spool rack.