| 摘要 |
PROBLEM TO BE SOLVED: To provide a double tube support structure capable of decreasing breakage probability and improving work efficiency at a time of assembly work.SOLUTION: A double tube support structure 10 supporting at least one inner tube 2 within one outer tube 1, comprises: a pair of support tools 11 of the same shape; and a fastening member 12 fastening these support tools 11 to each other. The support tools 11 each include an arm portion 11a extending along an inner circumferential surface of the outer tube 1; and an inner tube holding portion 11b holding the inner tube 2 and formed to be continuous to the arm portion 11a via a round portion 11e. The arm portion 11a is provided over one-third to one-ninth of a circumference of the outer tube 1. |
