| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a marine hose for easily and accurately determining replacing timing. <P>SOLUTION: A deformation quantity detecting part 44 of a control unit 40 can detect curvatures (a deformation quantity in the hose bending direction) in predetermined ranges AR1, AR2 and AR3 in respective axial directions of a hose body 10, and since a conversion processing part 46 of the control unit 40 can convert the curvatures of the predetermined ranges AR1, AR2 and AR3 in respective axial directions detected by the deformation quantity detecting part 44 into a durability influence numeric value, a plurality of times of bending directional deformation are caused in the predetermined ranges AR1, AR2 and AR3 in the respective axial directions of the hose body 10, and even if the size of the deformation is in variety, the durability influence numeric value is provided with the deformation. That is, the replacing timing of the marine hose can be determined based on a cumulative result of cumulating the durability influence numeric values provided with the deformations. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
