Patent ID: 7824269
Filing Date: 2010-11-02
Classification: F16F

Abstract:
1. A torque fluctuation absorbing apparatus arranged between a driving-side member and a driven-side member and transmitting a relative torque generated between the driving-side member and the driven-side member, the torque fluctuation absorbing apparatus absorbing a fluctuation of the relative torque, comprising: a hub member connected to the driven-side member, the hub member defining an axis and including a flange portion extending radially outwardly from the axis; first and second side-plates connected to the driving-side member and provided at both axial sides of the flange portion of the hub member, respectively; a damper mechanism housed in a window portion formed at each of the first and second side-plates and the flange portion of the hub member, the damper mechanism absorbing a fluctuation of a relative torque generated between the flange portion of the hub member and the first and second side-plates; a thrust member provided between the first side-plate and the flange portion of the hub member; and a first disc spring provided between the first side-plate and the thrust member and biasing the thrust member towards the flange portion of the hub member, wherein the first side-plate includes a bent portion bent towards the flange portion of the hub member with respect to an axial direction of the hub and a bore being formed at the bent portion, and the thrust member is formed with an engagement portion extending through the bore of the first side-plate and engaged with the bore of the first side-plate, the thrust member being formed with a detent portion protruding in the axial direction radially between respective portions of the hub member and the first side plate, the detent portion being offset radially inwardly with respect to the engagement portion and engaging the first side plate.