Pile driving device

Details Pile driving device Pile driving device

1977-01-06

1978-12-26

Purser, Ernest R.

Tool driving or impacting

Drive by means reacting to rotating eccentric mass

405232, E02D 706

Patent

active

041311663

ABSTRACT:
In a pile driving device for driving a pile particularly into a soil located beneath a body of water, said device mainly comprising a hammer, a guide frame for guiding said hammer and suspension means for suspending the guide frame to a lifting device, said guide frame comprising a base piece surrounding the pile with sliding fit and at least one guide stay fastened to said base for guiding the hammer, the suspension means engage the hanger of the lifing device in a vertical plane of suspension extending transversely of the guide frame and located near the center of gravity of the driving device.
During the pile driving operation almost the whole weight of the driving device hangs upon the derrick, so that this weight does not expose the pile to bending forces. The danger of buckling of the pile is reduced as a result.

REFERENCES:
patent: 1131048 (1915-03-01), Erickson
patent: 1879993 (1932-09-01), Salmon
patent: 3242997 (1966-03-01), Tokola

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