Patent ID: 8087508
Filing Date: 2012-01-03
Classification: F16D,F16F

Abstract:
1. A torsional vibration damper hub for a vehicle clutch comprising a hub splined to a shaft, first and second inner annular plates rotatably fitted to an outer periphery of the hub, first and second pairs of outer annular plates arranged at both sides of the first and second inner annular plates respectively, a first row of springs extending substantially in a clutch rotating direction and disposed in openings formed in the first inner annular plate and the first pair of outer annular plates, a second row of springs extending substantially in the clutch rotating direction and disposed in openings formed in the second inner annular plate and the second pair of outer annular plates, each first and second pair of the outer annular plates being connected to the adjacent inner annular plate by the springs, the first and second pair of outer annular plates being connected to the hub, a torque input member including one single friction plate fixed to the first and second inner annular plates, wherein the springs in the first row of springs are arranged in one first axial level and axially overlap the springs in the second row of springs, the springs in the second row of springs being arranged in a second axial level, wherein the first and second row of the springs are arranged on a substantially same radius from a center of rotation of the clutch.