US Patent 11274410 Impact compactor

An impact compactor including a first part including at least one non-round compactor drum rotatably mounted; and a second part connected, and movable relative, to the first part. The impact compactor includes a damping arrangement connected between the first and second parts and configured to provide a damping function for movement between the first and second parts. The damping arrangement includes an outer tubular member defining a non-circular inner channel/passage; a non-circular inner shaft member defining a first axis of rotation and is positioned, at least partially, in the channel/passage; and at least one wedge formation between the shaft member and the tubular member. The wedge formation is at least partially resiliently deformable and configured to resist/oppose rotation between the shaft member and the tubular member about the first axis of rotation. One member is connected to the first part, while the other member is connected to the second part.