US Patent 10039385 Electric bed

An electric bed includes a frame, an actuator, a base body and a plate member. The frame includes a fixed rack and a movable rack movably disposed at the fixed rack. The actuator is disposed between the fixed rack and the movable rack in a way that the movable rack is movable relative to the fixed rack. The base body is disposed at a top side of the frame. The plate member is movable into and out of the base body. As a result, the plate member can be used as a table or a supporting frame for replacing things thereon, and the plate member can move back when user do not want to use the plate member.