| 摘要 |
<p>PROBLEM TO BE SOLVED: To uniformly absorb displacement without deviation even when the displacement is generated in the ground by an earthquake, etc., by heightening a load limit and saving a piping place in a structure. SOLUTION: A corrugated extensive part 15a to extend and contract along the shaft center direction is provided on a flexible bent pipe 14a, and as an interval (d) of corrugation 18a is made small as shown by d1 >d2 ...>d7 from a pipe bent part center 16a to a pipe end part 17a, the side of the pipe end part 17a is soft and easy to be deformed. Consequently, the flexible bent pipe 14a is connected to piping 1 fixed on the ground, etc., when displacement is caused by an earthquake, etc., on the ground, etc., the neighbourhood of the pipe end part 17a is easily deformed, deformation of the bent part center 16a deformation of which is the largest is restrained, deformation of the whole of the flexible bent pipe 14a becomes comparatively uniform, and deviation of deformation is attemperated.</p> |
