US Patent 12114781 Electric bed

An electric bed includes a base, a back supporting unit pivotally connected with the base, a first actuator to drive the back supporting unit to upwardly and downwardly swing relative to the base, a head supporting unit pivotally connected with the back supporting unit, and a second actuator to drive the head supporting unit to swing between an initial position and a head-up position relative to the back supporting unit. When the head supporting unit stays at the initial position, a head supporting surface of the head supporting unit is flush with a back supporting surface of the back supporting unit. The head-up position is lower than the initial position.