The geared motor and pointer display device are provided with a stopper mechanism which restricts the range of movement of the trailing-side gear when the trailing-side gear rotates in a counter-clockwise direction. Of the stopper touching part and the part touched by the stopper that together constitute the stopper mechanism, the stopper touching part comprises the end of a gear-side protrusion which is integrally formed with the middle part at the outer peripheral surface of the middle part of the trailing-side gear. As a consequence, the stopper touching part comes into contact with the part touched by the stopper at a position close to the central axis of rotation of the trailing side gear. Therefore, when the stopper mechanism is activated, the collision energy to which the trailing side cog is subjected is minimal, which makes it possible to suppress the rebound of the trailing side gear.

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.

A damper device includes a first rotor, a second rotor, an elastic coupling part elastically coupling the first and second rotors in a rotational direction, and a hysteresis generating mechanism. The hysteresis generating mechanism generates a hysteresis torque and includes a friction member. The friction member is configured to make frictional contact with the first or second rotor. The friction member does not make frictional contact with the first and second rotors in a first torsion angular range where torsion is caused from a neutral condition to a first side and a second side in the rotational direction. The friction member makes frictional contact with the first or second rotor so as to generate a hysteresis torque in a second torsion angular range exceeding the first torsion angular range. The friction member is set in a neutral position by actuation of the elastic coupling part in the neutral condition.

A damper device includes a first rotor, a second rotor, an elastic coupling part having first and second elastic members, and a hysteresis generating mechanism. The hysteresis generating mechanism includes a friction member, and generates a hysteresis torque. The friction member does not make frictional contact with the first and second rotors in a first torsion angular range where the torsion is caused between the first and second rotors by a first torsion angle from a neutral condition, makes frictional contact with the first or second rotor in a second torsion angular range exceeding the first torsion angle so as to generate the hysteresis torque, and does not make frictional contact with the first and second rotors in a predetermined torsion angular range within the second torsion angular range. In the neutral condition, the friction member is set in a neutral position by actuation of the elastic coupling part.

A damper for a motor vehicle torque transmission device, in particular of the long travel damper type, having a torque input element (22), a torque output element (28), at least one group (26) of differing elastic members (26a, 26b) mounted between the torque input element and torque output element and acting oppositely to the rotation of the torque input element (22) and torque output element (28) with respect to one another, the elastic members (26a, 26b) of the group of elastic members being arranged in series by means of a phasing member (30) so that the elastic members (26a, 26b) of the group (26) of elastic members deform in phase with one another, the group (26) of elastic members (26a, 26b) being received in a receptacle (44) that is asymmetrical with respect to a median radial plane of the receptacle (44).

A damper device with a first intermediate element; a second intermediate element; a first elastic body that transmits torque between the input element and the first intermediate element; a second elastic body that transmits torque between the first intermediate element and the output element; a third elastic body that transmits torque between the input element and the second intermediate element; a fourth elastic body that transmits torque between the second intermediate element and the output element; and a fifth elastic body that transmits torque between the first intermediate element and the second intermediate element.

A damper device is disclosed. The damper device includes first and second rotary members, a plurality of elastic members, and a plurality of end seat members. The first rotary member includes a first engaging portion and an annular chamber filled with a viscous fluid in an interior thereof. The second rotary member includes a second engaging portion, and is rotatable relative to the first rotary member. The plurality of elastic members are aligned in a circumferential direction in the interior of the annular chamber, and elastically couple the first rotary member and the second rotary member in a rotational direction. Each of the plurality of end seat members is disposed between one of the plurality of elastic members and at least one of the first and second engaging portions. The each of the plurality of end seat members includes an end seat communicating groove penetrating therethrough in the circumferential direction.

A hydrodynamic torque converter and a torsional vibration damper for same, having a pump wheel connected on the drive side and a turbine wheel driven thereby, wherein a torsional vibration damper and an output part are provided between a housing of the hydrodynamic torque converter and an output hub. The torsional vibration damper having an input part that can be connected to the housing by a converter lock-up clutch, and said output part being connected to the output hub, wherein an intermediate flange arranged in each case counter to a spring device effective in the circumferential direction is provided between the input part and the output part. In order to protect the spring devices against damage in a manner not affecting the installation space, an angle of rotation of the intermediate flange counter to the effect of the spring devices is limited radially inside the spring.

A hydrodynamic torque converter and a torsional vibration damper for same, having a pump wheel connected on the drive side and a turbine wheel driven thereby, wherein a torsional vibration damper and an output part are provided between a housing of the hydrodynamic torque converter and an output hub. The torsional vibration damper having an input part that can be connected to the housing by a converter lock-up clutch, and said output part being connected to the output hub, wherein an intermediate flange arranged in each case counter to a spring device effective in the circumferential direction is provided between the input part and the output part. In order to protect the spring devices against damage in a manner not affecting the installation space, an angle of rotation of the intermediate flange counter to the effect of the spring devices is limited radially inside the spring devices.

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.