Patent ID: 9572735
Date: 2017-02-21
CPC Classifications: A61G

Claim:
1. A bed adapted to be supported on a floor, comprising: a plurality of wheels adapted to contact the floor; a headboard and a footboard, the footboard spaced apart from the headboard, the headboard and the footboard supported by the plurality of wheels; a support deck supported by the plurality of wheels, the support deck including a head end positioned proximate the headboard and a foot end positioned proximate the footboard, and at least one support surface extending between the head end of the support deck and the foot end of the support deck; a first base supported by a first portion of the plurality of wheels; a second base supported by a second portion of the plurality of wheels; a first lift system supported by the plurality of wheels, the first lift system operatively coupled to the support deck to raise and lower the support deck relative to the plurality of wheels while the plurality of wheels remain stationary, the first lift system is configured to raise and lower the head end of the support deck and the foot end of the support deck with the foot end of the support deck being generally horizontally aligned with the head end of the support deck, a head end of the first lift system is coupled to the first base and a foot end of the first lift system is coupled to the second base; and a second lift system supported by the plurality of wheels, the second lift system operatively coupled to the support deck to raise and lower the support deck relative to the plurality of wheels while the plurality of wheels remain stationary, the second lift system is configured to raise and lower the head end of the support deck and the foot end of the support deck with the foot end of the support deck being generally horizontally aligned with the head end of the support deck, wherein the first lift system further includes a horizontally extending portion extending between the head end of the first lift system and the foot end of the first lift system, a first lift system horizontal centerline of the horizontally extending portion of the first lift system being located midway between an upper surface of the horizontally extending portion of the first lift system and a lower surface of the horizontally extending portion of the first lift system, the second lift system includes a lower frame and an upper frame, a separation between the lower frame and the upper frame being adjusted as the second lift system raises and lowers the support deck, the second lift system having a horizontal centerline located midway between an upper surface of the upper frame and a lower surface of the lower frame, wherein when the support deck is in a first raised position the horizontal centerline of the second lift system is positioned above the horizontal centerline of the first lift system and when the support deck is in a first lowered position the horizontal centerline of the second lift system is generally aligned with the horizontal centerline of the first lift system.