| 摘要 |
PROBLEM TO BE SOLVED: To suppress loosening of a crimping part between an inner tube and a joint body by repeated load.SOLUTION: A hose joint 10 includes a joint body 12 provided with a hose insertion part 20 and a cylindrical inner tube 14 configured separately from the joint body 12. The inner tube 14 is provided with: a depth side crimping part 42 which is equipped with an outer diameter larger than an outer diameter of a hose attachment part 40 on a depth side of the hose attachment part 40; and an intermediate crimping part 44 which is equipped with an outer diameter smaller than the outer diameter of the depth side crimping part 42 and larger than the outer diameter of the hose attachment part 40 between the depth side crimping part 42 and the hose attachment part 40. At the end of the hose insertion part 20 of the joint body 12, a crimping hole 30 provided with a peripheral surface part 30A and a bottom surface part 30B is formed. A step part 32 above the peripheral surface part 30A is moved in the way that it comes in contact with an upper surface 42B of the depth side crimping part 42 and a peripheral surface 44A of the intermediate crimping part 44, and a deformation step part 34 is formed, so that the inner tube 14 is assembled with the joint body 12. |
