Damper device

A damper device comprising:

• an input element to which a torque from an engine is transmitted;
• an output element;
• an elastic body that transmits a torque between the input element and the output element;
• and
• a rotary inertia mass damper having a mass body that rotates in accordance with a relative rotation of the input element and the output element, wherein
• the output element is coupled to a rotor of an electric motor,
• the rotor of the electric motor is coupled to an input shaft of a transmission,
• the rotary inertia mass damper includes a planetary gear mechanism having a sun gear, a ring gear, a plurality of pinion gears, and a carrier that supports the plurality of pinion gears, and
• the carrier is a part of the input element, one of the sun gear and the ring gear is a part of the output element, and the other of the sun gear and the ring gear functions as the mass body, wherein
• the sun gear is a part of the output element,
• the ring gear functions as the mass body, and
• the elastic body is disposed on an inner side of the plurality of pinion gears in a radial direction of the damper device.