Patent attributes
An electric bed includes a base, a back frame, and a butt frame. The rear end of the back frame is attached to the base, and the back frame is swingable relative to the base by the driving of a first actuator. The butt frame is located in back of the back frame. The rear end of the butt frame is attached to the base, and the butt frame is swingable relative to the base by the driving of a second actuator. As a result, the electric bed of the invention enables the user to change the posture thereof between sitting and flat lying postures through the swinging of the back frame, and effectively supports the waist of the user through the swinging of the butt frame, so that the user can maintain the posture thereof conforming to ergonomics, thereby prevented from hurt on the waist.
