Patent ID: 8534955

Claim:
Tamper of a screed of a road finishing machine comprising an eccentric shaft rotatably driven by a drive and having at least one eccentric section and an eccentric bushing supported on the eccentric section in at least one tamper bar operative stop position, the eccentric bushing being rotatably mounted in a connecting rod driving a tamper bar with stroke motions, the stroke of the tamper bar being variable by adjustment of the rotational positioning of the eccentric bushing and the eccentric section within a circumferential area, at least one tappet and at least one preselection area are provided between the eccentric shaft and the eccentric bushing, the preselection area being limited by two end stops for the tappet, the circumferential distance between the end stops is greater than the extension of the tappet seen in the circumferential direction, and the tappet preselection area is located at the eccentric shaft and the tappet being adjustable from a first tamper bar operative stop position to a second tamper bar stop position by reversing the direction of rotation of the eccentric shaft.