A torque transmitting device comprising a torque input element intended to be coupled to a crankshaft of an engine, a torque output element intended to be coupled to a transmission input shaft, damping means mounted between the torque input element and the torque output element, with the torque output element being able to pivot relative to the torque input element about an axis, against a resisting torque exerted by the damping means, with the damping means comprising at least one elastic leaf able to be elastically and radially held to rest on a support member, with the elastic leaf being adapted to bend upon rotation of the torque input element relative to the torque output element, with the device further comprising clutch means mounted between the torque input element and the torque output element, wherein the supporting member is carried by the torque input element.