| 摘要 |
PROBLEM TO BE SOLVED: To provide a spacer for a double tube which enables improvement of the work efficiency when a double tube is constructed.SOLUTION: A spacer 1 for a double tube formed by a resin material includes: a cylindrical inner tube support part 10 including an inner tube support surface 11 that is formed therein to support an inner tube; outer tube support parts 40 configured to support an outer tube in which the inner tube is disposed; and connection parts 50, each of which connects the inner tube support part 10 to the outer tube support part 40. In the spacer 1 for the double tube, each outer tube support part 40 elastically deforms so as to approach the inner tube support part 10 with the connection part 50 set as a supporting point.SELECTED DRAWING: Figure 1 |
