Abstract: A device for driving an object by vibration, in particular a pile or sheet piling to be driven into the ground be removed therefrom, which device comprises a first eccentrically rotatable weight (1, 2) and a second eccentrically rotatable weight (3, 4), which weights are interconnected by a phase shifter (13) which is capable of adjusting the rotational position of the weights (1, 2; 3, 4) relative to each other. The phase shifter (13) comprises a differential.
Type:
Grant
Filed:
October 27, 2000
Date of Patent:
August 12, 2003
Assignee:
International Construction Equipment B.V.