A damper device comprising: a first rotating body ; a second rotating body coaxial with the first rotating body , and relatively rotating with respect to the first rotating body ; an intermediate member coaxial with the first rotating body and the second rotating body and relatively rotating with respect to the first rotating body ; and an elastic mechanism that has a first elastic body elastically coupling the first rotating body and the intermediate member with each other in a rotation direction, a second elastic body elastically coupling the intermediate member and the second rotating body with each other in the rotation direction, a pair of first sheet members supporting the first elastic body , a pair of second sheet members supporting the second elastic body , and wherein the first rotating body further has a first stopper restricting relative rotation of the second rotating body , and a second stopper restricting relative rotation of the intermediate member , and characterised in that a floating elastic body is accommodated inside at least one of the first elastic body and the second elastic body (420 and in that the first rotating body has a pair of plate members and a spacer to be accommodated between the pair of plate members , the second stopper is disposed in a plate member , and the first stopper is disposed in the spacer . a first rotating body ; a second rotating body coaxial with the first rotating body , and relatively rotating with respect to the first rotating body ; an intermediate member coaxial with the first rotating body and the second rotating body and relatively rotating with respect to the first rotating body ; and an elastic mechanism that has a first elastic body elastically coupling the first rotating body and the intermediate member with each other in a rotation direction, a second elastic body elastically coupling the intermediate member and the second rotating body with each other in the rotation direction, a pair of first sheet members supporting the first elastic body , a pair of second sheet members supporting the second elastic body , and wherein the first rotating body further has a first stopper restricting relative rotation of the second rotating body , and a second stopper restricting relative rotation of the intermediate member , and characterised in that a first elastic body elastically coupling the first rotating body and the intermediate member with each other in a rotation direction, a second elastic body elastically coupling the intermediate member and the second rotating body with each other in the rotation direction, a pair of first sheet members supporting the first elastic body , a pair of second sheet members supporting the second elastic body , and wherein the first rotating body further has a first stopper restricting relative rotation of the second rotating body , and a second stopper restricting relative rotation of the intermediate member , and characterised in that a floating elastic body is accommodated inside at least one of the first elastic body and the second elastic body (420 and in that the first rotating body has a pair of plate members and a spacer to be accommodated between the pair of plate members , the second stopper is disposed in a plate member , and the first stopper is disposed in the spacer . <EOS>