A power transmission device comprising: a first power transmission path for transmitting a driving force of a motor to one driven shaft; and a second power transmission path for transmitting the driving force of the motor to another driven shaft arranged to face the one driven shaft, wherein at least one of the first power transmission path or the second power transmission path includes: a first intermediate rotor which has an axial center position fixed to an output shaft of the motor and is rotated by the driving force of the motor; a second intermediate rotor rotated by the first intermediate rotor and moving along an outer circumference of the first intermediate rotor; and a driving shaft rotated by the second intermediate rotor and transmitting the driving force to the one driven shaft or the another driven shaft, wherein the driving shaft is configured to move in a direction perpendicular to an axial center direction of the driving shaft in accordance with movement of the second intermediate rotor around the first intermediate rotor, characterized in that at least one of the first power transmission path or the second power transmission path includes: at least one pair of first intermediate rotors arranged on one side and the other side across the output shaft of the motor; and a pair of second intermediate rotors arranged on the one side and the other side across the output shaft of the motor. a first power transmission path for transmitting a driving force of a motor to one driven shaft; and a second power transmission path for transmitting the driving force of the motor to another driven shaft arranged to face the one driven shaft, wherein at least one of the first power transmission path or the second power transmission path includes: a first intermediate rotor which has an axial center position fixed to an output shaft of the motor and is rotated by the driving force of the motor; a second intermediate rotor rotated by the first intermediate rotor and moving along an outer circumference of the first intermediate rotor; and a driving shaft rotated by the second intermediate rotor and transmitting the driving force to the one driven shaft or the another driven shaft, a first intermediate rotor which has an axial center position fixed to an output shaft of the motor and is rotated by the driving force of the motor; a second intermediate rotor rotated by the first intermediate rotor and moving along an outer circumference of the first intermediate rotor; and a driving shaft rotated by the second intermediate rotor and transmitting the driving force to the one driven shaft or the another driven shaft, wherein the driving shaft is configured to move in a direction perpendicular to an axial center direction of the driving shaft in accordance with movement of the second intermediate rotor around the first intermediate rotor, characterized in that at least one of the first power transmission path or the second power transmission path includes: at least one pair of first intermediate rotors arranged on one side and the other side across the output shaft of the motor; and a pair of second intermediate rotors arranged on the one side and the other side across the output shaft of the motor. at least one pair of first intermediate rotors arranged on one side and the other side across the output shaft of the motor; and a pair of second intermediate rotors arranged on the one side and the other side across the output shaft of the motor.