Patent ID: 6691345
Filing Date: 2004-02-17
Classification: A61G

Abstract:
A lifting mechanism for liftable side rails for a lying table such as a bed, comprising each of the side rails proper, consisting of a plurality of vertically disposed side rail members, the plurality of side rail members, being pivotally rotatably connected, on the respectively both horizontal sides thereof, with a pair of support arms pivotally rotatably supported at side rail installation points of the lying table such as a bed, to be supported in such a manner that the side rail members may be lifted and lowered by the pivotally rotational motion of these support arms along the pivotally rotational loci, and the connection points between the support arms and the side rail members, being disposed in such a manner that the connection points of the upper side rail member make pivotally rotational motion relatively delayed in phase, with the connection points of the lowest side rail member as the fulcrums, when the side rail members are moved to descend by the pivotally rotational motion of the support arms.