Pile driver.

摘要

This invention relates to a pile driver wherein an attachment frame 1 is fixed to a work-arm 12 of an appropriate construction equipment that serves as a base machine 11, a vibration cylinder 4 actuated and controlled by an electro-hydraulic servo-valve 5 is mounted on the attachment frame through a buffer rubber 3, and a counter weight 2 and a chucking means 6 for gripping a pile to be driven K are provided on the axial ends, that is, on the cylinder base and on the forward end of the piston 41, the pile being to be held in such a manner that the drive direction coincides with the axis of the vibration cylinder. <IMAGE>