| 摘要 |
PROBLEM TO BE SOLVED: To reliably prevent the deformation of a pipe member, solving the problem of wasting excess labor and man-hours, improving and equalizing work quality and easily performing at a low cost. SOLUTION: This device comprises a chassis 3, a plurality of support rollers 3a, 3b, etc., rotatably supported by the chassis 2 and arranged on right and left supporting pipe members P, Ps on the circumferential surface, and a rotation supporting tool U having a rotation drive part 4 for rotating at least one support roller 3a at a low speed, and thereby prevents the deformation of the pipe members P, Ps left outdoor. COPYRIGHT: (C)2004,JPO
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