Machine for driving vertical members
OwnerTadashi Nakagawasaiinventor
Life of this patent
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Abstract
A building machine wherein a leader is supported vertically during an operation, an endless chain is engaged around upper and lower sprockets of said leader, and a base body is mounted on said chain and is forced to move vertically along said leader. A pile which is a member to be driven in, is mounted on a pile holding portion of said base body.
Claims3
A building machine for driving vertical members, comprising, a leader which is supported vertically during a driving operation, upper and lower sprockets mounted rotatably at upper and lower positions respectively of said leader, an endless chain which is engaged around the upper and lower sprockets of said leader, powered means for driving said chain, a base body connected to said chain and forced by said chain to move vertically along said leader, the base body also being engagable with a member to be driven, a crane having pivotal supporting means connecting with the upper end of said leader for rotation of the leader about a vertical axis whereby said base body can be turned in different directions, and leader fixing means between the crane and the leader for fixing the rotation of said leader.
Dependencies are inferred from the claim text.