Abstract: A damper device includes a first rotary member to which a power of an engine is inputted. The second rotary member is disposed to be rotatable relatively to the first rotary member. The plurality of elastic members elastically couple the first rotary member and the second rotary member in a rotational direction. The seat member is disposed between at least one of the first and second rotary members and one of the plurality of elastic members, and is movable in the rotational direction in accordance with compression and extension of the one of the plurality of elastic members. The auxiliary compression mechanism changes a posture of the seat member so as to compress the one of the plurality of elastic members by a predetermined amount in transmitting the power between the first rotary member and the second rotary member.

Abstract: A damper device includes a first rotary member to which a power of an engine is inputted. The second rotary member is disposed to be rotatable relatively to the first rotary member. The plurality of elastic members elastically couple the first rotary member and the second rotary member in a rotational direction. The seat member is disposed between at least one of the first and second rotary members and one of the plurality of elastic members, and is movable in the rotational direction in accordance with compression and extension of the one of the plurality of elastic members. The auxiliary compression mechanism changes a posture of the seat member so as to compress the one of the plurality of elastic members by a predetermined amount in transmitting the power between the first rotary member and the second rotary member.

Abstract: A seat member includes a pressing part to be pressed by at least either of a first rotary member and a second rotary member. The seat member also includes a sliding part. The seat member is disposed to be changeable in posture between a first posture and a second posture, the first posture causing a radially outer part of the pressing part to be contacted to the at least either of the first rotary member and the second rotary member when an absolute value of a rotational angle of the second rotary member with respect to the first rotary member is less than a predetermined value, the second posture causing the sliding part to partially slide against the first rotary member when the absolute value of the rotational angle of the second rotary member with respect to the first rotary member is greater than or equal to the predetermined value.

Abstract: A seat member includes a pressing part to be pressed by at least either of a first rotary member and a second rotary member. The seat member also includes a sliding part. The seat member is disposed to be changeable in posture between a first posture and a second posture, the first posture causing a radially outer part of the pressing part to be contacted to the at least either of the first rotary member and the second rotary member when an absolute value of a rotational angle of the second rotary member with respect to the first rotary member is less than a predetermined value, the second posture causing the sliding part to partially slide against the first rotary member when the absolute value of the rotational angle of the second rotary member with respect to the first rotary member is greater than or equal to the predetermined value.

Abstract: A flywheel assembly includes a first elastic member disposed on a side to which an acceleration-side power of an engine is outputted and a second elastic member disposed in series with the first elastic member. The second elastic member exerts a transmission torque having a magnitude less than that of a transmission torque exerted by the first elastic member. An end sheet member includes a first end sheet member and a second end sheet member. The first end sheet member is slidable against a first rotary member. The second end sheet member is slidable against the first rotary member. A first intermediate sheet member included in an intermediate sheet member is disposed between the first elastic member and the second elastic member and is slidable against the first rotary member.

Abstract: A flywheel assembly includes a first elastic member disposed on a side to which an acceleration-side power of an engine is outputted and a second elastic member disposed in series with the first elastic member. The second elastic member exerts a transmission torque having a magnitude less than that of a transmission torque exerted by the first elastic member. An end sheet member includes a first end sheet member and a second end sheet member. The first end sheet member is slidable against a first rotary member. The second end sheet member is slidable against the first rotary member. A first intermediate sheet member included in an intermediate sheet member is disposed between the first elastic member and the second elastic member and is slidable against the first rotary member.