Patent ID: 6920656

Claim:
A bed that can be supported on a floor, having a bed frame and a pair of motor powered leg mechanisms operable to vertically raise and lower the bed frame between a lowermost and an uppermost position, each one of the pair of leg mechanisms including rolling means, the rolling means comprising a fixed leg member, the fixed leg member engaging the floor when the bed frame is in the lowermost position and disengaging the floor when the bed flame is raised to thereby render the bed horizontally mobile on the rolling means only at substantially the uppermost position; wherein said bed frame comprises a pair of spaced apart transverse frame elements inward of each end of the bed frame, having a pair of rod guide means there between rigidly connected at each end to said transverse frame elements, said guide means having a bearing element and a spring element circumferentially mounted thereon, said bearing element movable along the length of the guide means to engage as well as to compress the spring element at one end thereof against said transverse frame element and wherein said motor power consists of a linear actuator operatively attached to the bearing element.