INNER EXCAVATION DEVICE OF MACHINE FOR PILE INSTALLATION BY INNER EXCAVATION

摘要

PROBLEM TO BE SOLVED: To facilitate the exchange between an inner excavation device with weight and an inner excavation device without weight. ;SOLUTION: Flange parts 24b, 24c attached to a press fitting bracket 22 are formed at an upper end and in an intermediate part, respectively, in a press fitting cylinder 24 attached to the press fitting bracket 22 provided in an auger drive device 21. In case of an inner excavation device without weight, the flange part 24c attached to the intermediate part is attached to the press fitting bracket 22, and in case of an inner excavation device with weight, the flange part 24b attached at the upper end is attached to the press fitting bracket 22.;COPYRIGHT: (C)1999,JPO