84 PCT/JP2013/066093 Abstract To provide a bed apparatus that facilitates the operator to work on electric generation in generating electricity with a generator, can reduce the temporal and physical burden on the operator, and can secure safety for a person who does not understand uses and others . The input-side end of a second electric power path 58 is provided in a relay box 50 while the output-side end of a first electric power path 52d from a hand-crank generator 52 can be connected by a plug or the like to the input-side end of second electric power path 58 provided in this relay box 50, whereby an electric back drive actuator 31as an electric power use device can be operated when electricity is generated by the hand-crank generator 52 in a state that first electric power path 52d and second electric power path 58 are connected.
