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.

An exemplary embodiment of the present invention provides a hybrid apparatus provided in a housing having one side coupled to a transmission and the other side coupled to an engine, the hybrid apparatus including: a P1 motor and a P2 motor; and a torsion damper disposed between the P1 motor and the P2 motor, in which the torsion damper includes an anti-scattering unit configured to prevent foreign substances, which are generated by compression of the torsion damper, from being released and introduced into the P1 motor and the P2 motor.

An exemplary embodiment of the present invention provides a hybrid apparatus provided in a housing having one side coupled to a transmission and the other side coupled to an engine, the hybrid apparatus including: a P1 motor and a P2 motor; and a torsion damper disposed between the P1 motor and the P2 motor, in which the torsion damper includes an anti-scattering unit configured to prevent foreign substances, which are generated by compression of the torsion damper, from being released and introduced into the P1 motor and the P2 motor.

A damper device includes a hub flange, an input rotor, an elastic member, and a contact assist mechanism. The hub flange includes internal teeth meshed with external teeth of a power transmission shaft. The input rotor is disposed to be rotatable relative to the hub flange. The elastic member elastically couples the input rotor and the hub flange. The contact assist mechanism is configured to cause contact between the internal teeth of the hub flange and the external teeth of the power transmission shaft.

A power transmission device includes a flywheel and a torque limiter unit fixed to the flywheel. The flywheel includes an annular portion and an accommodation portion provided on an inner peripheral side of the annular portion to accommodate the torque limiter unit. The torque limiter unit includes a first plate, a second plate, a friction disc disposed between the first and second plates, and a pressing member. A torque is inputted to the first plate. The first plate includes first engaging portions. The second plate is axially opposed to and non-rotatable relative to the first plate. The second plate includes second engaging portions engaged with the first engaging portions. The pressing member presses the second plate onto the friction disc. The annular portion of the flywheel is provided with recesses on the inner peripheral surface thereof. The recesses are recessed radially outward in opposed positions to the second engaging portions.

A vibration damping assembly for use with a second shaft nested within an interior of a first shaft is provided including a collar rotatable with the first shaft, and a cage rotatable with the second shaft and having at least one window formed therein. The collar and the cage are mounted concentrically. At least one damping mechanism is positioned within the at least one window. The at least one damping mechanism includes at least one flyweight and at least one support wedge. The at least one flyweight movable relative to the cage to frictionally engage an adjacent surface of the collar.

In an aspect, an isolation device is provided for a belt and a component shaft in an engine. The device includes a hub, a pulley, an isolation spring and a damping member that is fixed rotationally relative to the hub and is engageable frictionally with the pulley. Torque transmission through the spring below a selected non-zero torque, irrespective of hub load on the pulley, drives a change in radius of the helical coils of the spring that is sufficiently small that the spring avoids pressing the damping member against the pulley. Torque transmission through the spring above the selected non-zero torque, irrespective of hub load on the pulley, drives a change in radius of the helical coils that is sufficiently large that the isolation spring applies a radial force to press the damping member against the pulley so as to generate frictional damping.

In an aspect, an isolation device is provided for a belt and a component shaft in an engine. The device includes a hub, a pulley, an isolation spring and a damping member that is fixed rotationally relative to the hub and is engageable frictionally with the pulley. Torque transmission through the spring below a selected non-zero torque, irrespective of hub load on the pulley, drives a change in radius of the helical coils of the spring that is sufficiently small that the spring avoids pressing the damping member against the pulley. Torque transmission through the spring above the selected non-zero torque, irrespective of hub load on the pulley, drives a change in radius of the helical coils that is sufficiently large that the isolation spring applies a radial force to press the damping member against the pulley so as to generate frictional damping.

An opening/closing device of an embodiment has first to third movable contacts, first to third transmission mechanisms, first to third containers, a crankshaft, an operating mechanism, and a shock absorbing mechanism. The first to third movable contacts are accommodated in the first to third containers. The first to third transmission mechanisms are connected to the first to third movable contacts. The first to third containers accommodate at least the first movable contact. The crankshaft operates the first to third transmission mechanisms and changes the first to third movable contacts from a closed state to an open state. The operating mechanism is disposed on the side of the first transmission mechanism to rotate the crankshaft. The shock absorbing mechanism is disposed on the side of the third transmission mechanism to absorb a shock of rotational movement of the crankshaft.

A vibration isolating coupler including a first coupler portion, a second coupler portion including an external surface and an internal surface portion, and a vibration isolating portion extending between the first coupler portion and the second coupler portion. The vibration isolating portion including a first solid annular portion and a second solid annular portion. The vibration isolating portion including a plurality of slots extending from the first solid annular portion toward the second solid annular portion forming a plurality of vibration isolating elements. Each of the plurality of vibration isolating elements is disconnected from adjacent ones of the plurality of vibration isolating elements by a corresponding one of the plurality of slots. The plurality of vibration isolating elements enabling torsional rotation of the first coupler portion relative to the second coupler portion.