| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for a clamp fitting device and the clamp fitting device that reduce manufacturing costs and facilitate assembly of the clamp fitting device to have sufficient strength.SOLUTION: A manufacturing method is for a clamp fitting device 10 having first and second clamp mechanisms 13, 14 that hold support pipes 15, 23 connected back-to-back with first and second flat seats 11, 12 in between, the flat seats having been formed respectively on fixed receiving members 17, 24. The manufacturing method includes the following steps for: inserting a tubular male protrusion 29 formed at a center of the second flat seat 12 into a circular female hole 28 formed at a center of the first flat seat 11; opening a tip of the male protrusion 29 outward, and connecting the first and the second clamp mechanisms 13, 14; and forming a plurality of caulking recesses 30 on a base edge side of the male protrusion 29 that simultaneously deforms the base edge side of the male protrusion 29 and an inner peripheral part 31 of the female hole 28, for preventing rotation of the second clamp mechanism 14 relative to the first clamp mechanism 13.SELECTED DRAWING: Figure 1 |
