| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform casing press-fitting construction even to a narrow corner part. <P>SOLUTION: A casing rotating and press-fitting device includes at least a pair of frames that are a base frame to be grounded on soil and a lifting frame 2 supported so as to be freely lifted by a lifting cylinder 3 on the base frame. The pair of frames are formed by horizontally extending a triangular board 5 roughly in an isosceles triangle shape to have a narrower width as reaching the front from a front side of a base board which is rectangular in the plan view, in the state of projecting a right angle sharp end T of the triangular board 5 to the front. A circular casing insertion port 16 which is bit into the triangular board 5 and whose center is on a median passing through the right angle sharp end T in the triangular board 5 is opened near the right angle sharp end T on the pair of frames, and the lifting cylinder 3 and other casing rotating and press-fitting apparatuses are loaded on the pair of frames. <P>COPYRIGHT: (C)2012,JPO&INPIT |
