| 摘要 |
PROBLEM TO BE SOLVED: To provide a bending roll with which the barrel type deformation of a pipe occurring at roll bending is prevented and a small-diameter and long- length pipe is manufactured. SOLUTION: This bending roll consists of: a core roll 1 made of metal, a plurality of pressing rolls 2A, 2B made of metal and installed so as to come in contact with the circumference of the core roll 1 when bending a metallic plate 6; and a guide belt 8 which is interposed respectively between the core roll 1 and one of the plurality of pressing rolls 2A, 2B and between the core roll 11 and the other of the pressing rolls, runs on the surface of the surface of the core roll on the opposite side to a side where the metallic plate 6 is pulled in, is made of an elastic body and is driven in synchronism with the core roll. COPYRIGHT: (C)2003,JPO
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