| 摘要 |
<p>PROBLEM TO BE SOLVED: To hold high falling strength even by reducing the number of parts and the number of manufacturing processes. SOLUTION: A hose head end part H1 is largely compressed in the thickness direction between a calking part 2 and a step 6 and sealed impossible to move by partially reducing a diameter of an intermediate part 2a in the axial direction of an outer cylindrical part 2 facing against the step 6 of a terminal 1b of an inner cylindrical part 1 and an insert pipe 5 by calking it after fitting and inserting the head end part H1 of a hose H into a ring recessed part 4, an outer peripheral surface H2 of the hose head end part H1 is deformed in a step shape along the step 6, a fluid intruding along an inner peripheral surface H4 of the hose head end part H1 is stopped on this step 6, and a fluid intruding along an outer peripheral surface H3 of the hose head end part H1 is stopped at the calking part 2a.</p> |
