PROBLEM TO BE SOLVED: To provide a boring machine capable of stably making the boring machine independent even if it is removed from a tractor, at the same time, omitting a stand provided on a loading platform side and reducing the number of structural members of the stand to facilitate the manufacturing at a low cost. SOLUTION: A supporting frame 4 is put on the tractor through three point link means 3, a boring mechanism 6 having an auger 35 in a liftable manner is provided on the supporting frame 4, at the same time, in the boring machine having the loading platform 20, the loading platform 20 is provided on a loading platform attitude A on which a load is laid and a stand attitude B supporting the supporting frame 4 so as to make it become independent in an attitude variable manner, and a fixed means for fixing the load platform 20 to the load platform attitude A and the stand attitude B in a detachable manner is provided. COPYRIGHT: (C)2004,JPO
