| 摘要 |
PROBLEM TO BE SOLVED: To easily form a wall for supporting an locking ring at a low cost, and utilize a deflection of a tip even after supported or the wall. SOLUTION: This tube holding mechanism comprises the locking ring 1 for holding an inserted tube, a circumferential recessed part 2 in which the locking ring 1 is fitted, and a buckling 3 defining the rear wall of the circumferential recessed part 2. A fulcrum 4 for supporting the locking ring 1 that has deformed backward is provided on the buckling 3, and contacts with the proximity of the substantially center of a locking edge length 5. |
