Abstract: A damper device includes: a first rotating body rotating around a rotation shaft and receiving power transmitted from a flywheel; a second rotating body including a first plate receiving the power transmitted from the first rotating body and a second plate disposed to face the first plate and rotating integrally with the first plate; a third rotating body rotating relative to the second rotating body around the rotation shaft; a fastening body integrating the first and second plates at a position radially spaced apart from a position where the power is transmitted from the first rotating body to the first plate; and an elastic mechanism elastically interconnecting the second and third rotating bodies in a rotation direction. The first plate is provided with a restricting portion restricting relative rotation of the third rotating body beyond a predetermined torsion angle.

Abstract: Provided is a damper device including a first rotary body that is rotated about a rotational axis; a second rotary body that is rotated relative to the first rotary body; an elastic mechanism portion; and a control plate that includes a radially extending portion that abuts against the elastic mechanism portion and an axially extending portion that is partially housed in at least one of the first rotary body and the second rotary body. The control plate is disposed in only one of the first housing space and the second housing space in the axial direction. The device also includes a first sliding portion that generates first sliding torque; and a second sliding portion that generates second sliding torque. The first sliding torque and the second sliding torque are generated when the first rotary body and the second rotary body are rotated relative to each other.

Abstract: A damper device includes: a first rotary body including a first plate rotating around a rotation shaft and a second plate disposed facing the first plate and integrally rotating with the first plate; a second rotary body rotating relative to the first rotary body; a control plate disposed between the first plate and the second rotary body in an axial direction and engaged with the second rotary body to rotate integrally therewith; a first thrust member a part of which is disposed between the first plate and the control plate in the axial direction and engaged with the first plate to rotate integrally therewith; and a second thrust member a part of which is disposed between the second plate and the second rotary body and engaged with the second plate to rotate integrally with the first rotary body.

Abstract: A damper device includes: a first rotary body including a first plate rotating around a rotation shaft and a second plate disposed facing the first plate and integrally rotating with the first plate; a second rotary body rotating relative to the first rotary body; a control plate disposed between the first plate and the second rotary body in an axial direction and engaged with the second rotary body to rotate integrally therewith; a first thrust member a part of which is disposed between the first plate and the control plate in the axial direction and engaged with the first plate to rotate integrally therewith; and a second thrust member a part of which is disposed between the second plate and the second rotary body and engaged with the second plate to rotate integrally with the first rotary body.

Abstract: A damper device includes: a first rotating body rotating around a rotation shaft and receiving power transmitted from a flywheel; a second rotating body including a first plate receiving the power transmitted from the first rotating body and a second plate disposed to face the first plate and rotating integrally with the first plate; a third rotating body rotating relative to the second rotating body around the rotation shaft; a fastening body integrating the first and second plates at a position radially spaced apart from a position where the power is transmitted from the first rotating body to the first plate; and an elastic mechanism elastically interconnecting the second and third rotating bodies in a rotation direction. The first plate is provided with a restricting portion restricting relative rotation of the third rotating body beyond a predetermined torsion angle.

Abstract: A damper device includes: a pressing plate; a rotation plate disposed to oppose the pressing plate; an elastic member elastically linking the pressing and rotation plates, and in which bending is generated when relative twist of the pressing and rotation plates is generated; and seats provided on both end surfaces of the elastic member The seat has a projected surface, the pressing plate has a recessed surface corresponding to the projected surface, the seats and the pressing plate come into surface-contact with each other in a case where the relative twist is not generated, one seat and the pressing plate come into surface-contact with each other, and a void is formed between the other seat and the pressing plate, in a case where the relative twist is generated, and the void increases as an angle of the relative twist increases.

Abstract: In a positive torsion angle region in which a torque is transmitted from an engine side, a small hysteresis torque is generated at all times. Therefore, torsional vibrations of a small amplitude occurring during idle operation can be effectively attenuated by the small hysteresis torque, without switching to a large hysteresis torque, for example, during idle operation of the engine. As a result, the driver can be prevented from feeling uncomfortable due to switching to a large hysteresis torque during idle operation, and drivability can therefore be improved.

Abstract: A damper device includes: a pressing plate; a rotation plate disposed to oppose the pressing plate; an elastic member elastically linking the pressing and rotation plates, and in which bending is generated when relative twist of the pressing and rotation plates is generated; and seats provided on both end surfaces of the elastic member The seat has a projected surface, the pressing plate has a recessed surface corresponding to the projected surface, the seats and the pressing plate come into surface-contact with each other in a case where the relative twist is not generated, one seat and the pressing plate come into surface-contact with each other, and a void is formed between the other seat and the pressing plate, in a case where the relative twist is generated, and the void increases as an angle of the relative twist increases.

Abstract: A damper apparatus according to an embodiment includes a pair of first plates, a second plate, an elastic member, a first friction material and a second friction material. The elastic member is configured to elastically deform in a circumferential direction of a rotation axis by a relative rotation between the pair of first plates and the second plate around the rotation axis. The first friction material is configured to generate a first friction torque in a case where the second plate rotates relative to the pair of first plates in a first direction from an initial state. The second friction material is configured to generate a second friction torque greater than the first friction torque in a case where the second plate rotates relative to the pair of first plates in a second direction which is opposite from the first direction from the initial state.

Abstract: A damper device includes a first member, a second member, an elastic member and a supporting member. The first member has two wall members separated from each other. The supporting member includes projections (preventing portion) that make contact with one of two wall portions (wall members) so as to prevent the supporting member and an elastic member from being inclined (falling, rotationally moving) in the axial direction.

Abstract: A damper includes a first, second, and third rotation member rotatable around a rotation axis, a first elastic portion interposed between the first rotation member and the second rotation member and elastically deformed by a relative rotation between the first rotation member and the second rotation member, a second elastic portion interposed between the second rotation member and the third rotation member and elastically deformed by a relative rotation between the second rotation member and the third rotation member, and a dynamic vibration absorber. The dynamic vibration absorber includes a rolling element that is positioned at an inner side relative to the first elastic portion and the second elastic portion in a radial direction of the rotation axis, and is rotatable relative to the second rotation member.

Abstract: A damper apparatus includes a first rotation member, a second rotation member, a first elastic portion interposed between the first and the second rotation members and elastically deformed by a relative rotation between the first and the second rotation members, a third rotation member, a second elastic portion interposed between the second and third rotation members and elastically deformed by a relative rotation between the second and third rotation members, and a dynamic vibration absorber. The dynamic vibration absorber includes an anchor member and a third elastic portion that is interposed between the anchor member and the second rotation member and that is elastically deformed by a relative rotation between the anchor member and the second rotation member. At least the third elastic portion is positioned at an inner side of the first elastic portion and the second elastic portion in a radial direction of the rotation axis.

Abstract: A torque fluctuation absorbing apparatus comprises a first plate member, a second plate member disposed at a position axially offset from the first plate member, an intermediate plate member that is disposed between the first plate member and the second plate member and has a frictional sliding surface mating with the second plate member, rolling elements disposed so as to roll between the intermediate plate member and the first plate member, and resilient member that allows the intermediate plate member and the first plate member to rotate relative to each other. The intermediate plate member and the first plate member have acting sections on a surface whereon at least one of the rolling elements rolls, the acting sections press the intermediate plate member against the second plate member by a relative rotation between the intermediate plate member and the first plate member.

Abstract: In an embodiment, a supporting member includes projections (preventing portion) that make contact with one of two wall portions (wall members) so as to prevent the supporting member and an elastic member from being inclined (falling, rotationally moving) in the axial direction.

Abstract: A damper apparatus according to an embodiment includes a pair of first plates, a second plate, an elastic member, a first friction material and a second friction material. The elastic member is configured to elastically deform in a circumferential direction of a rotation axis by a relative rotation between the pair of first plates and the second plate around the rotation axis. The first friction material is configured to generate a first friction torque in a case where the second plate rotates relative to the pair of first plates in a first direction from an initial state. The second friction material is configured to generate a second friction torque greater than the first friction torque in a case where the second plate rotates relative to the pair of first plates in a second direction which is opposite from the first direction from the initial state.

Abstract: A damper device includes: a pair of first plates axially separated from each other along a rotation axis and rotatable integrally with each other around the axis in a state where the first plates intersect the axis; a second plate including a portion positioned between the first plates, having an opening, and rotatable around the axis in a state where the second plate intersects the axis; an elastic member between the first and second plates, and elastically deformed a circumferential direction of the axis; and a third plate having a first portion positioned on an inner side of the opening and coupled to the first plates in a state where the first portion is between the first plates, and a second portion positioned on an outer side of the opening, and rotatable around the axis in a state where the third plate intersects the axis.

Abstract: A damper apparatus includes a first rotation member, a second rotation member, a first elastic portion interposed between the first and the second rotation members and being elastically deformed by a relative rotation between the first and the second rotation members, a third rotation member, a second elastic portion interposed between the second and third rotation members and being elastically deformed by a relative rotation between the second and third rotation members, and a dynamic vibration absorber including an anchor member and a third elastic portion that is interposed between the anchor member and the second rotation member and that is elastically deformed by a relative rotation between the anchor member and the second rotation member, at least the third elastic portion being positioned at an inner side of the first elastic portion and the second elastic portion in a radial direction of the rotation axis.

Abstract: A damper includes a first rotation member being rotatable around a rotation axis, a second rotation member being rotatable around the rotation axis, a third rotation member being rotatable around the rotation axis, a first elastic portion interposed between the first rotation member and the second rotation member and being elastically deformed by a relative rotation between the first rotation member and the second rotation member, a second elastic portion interposed between the second rotation member and the third rotation member and being elastically deformed by a relative rotation between the second rotation member and the third rotation member, and a dynamic vibration absorber including a rolling element that is positioned at an inner side relative to the first elastic portion and the second elastic portion in a radial direction of the rotation axis, the rolling element being rotatable relative to the second rotation member.

Abstract: A fluctuation absorbing apparatus includes a first plate secured to a flywheel, a second plate disposed at a distance from the first plate, a third plate slidably sandwiched between the first plate and the second plate, and a resilient section that is supported by, fixed to or integrated with the first plate or the second plate and biases the second plate toward the first plate.

Abstract: A damper device comprises: a first shaft that outputs rotational power from a power source; a second shaft that transmits rotational power to a gear mechanism and has outer splines; a first rotational member(s) to which the rotational power of the first shaft is transmitted; a second rotational member spline-engaged with the outer splines; a damper unit that absorbs torque fluctuation between the first and second rotational members; and an inertial body having inner splines spline-engaged with the outer splines and having an annular portion. The tooth parts of the inner splines are pressed into contact with the tooth parts of the outer splines in the circumferential direction of the inertial body.