| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve reliability reducing the occurrence of the defective seal function of a seal part. SOLUTION: A cylindrical socket part 1 and a cylindrical nipple part 2 positioned in the socket part 1 are arranged on one side, and a screw part 3 in which a joint member is screwed, a communication hole 5 to communicate the hollow part 2a of the nipple part 2 to the screw part 3, and a seal part 6 in a truncated shape formed at the opening edge part of the communication hole 5 are arranged on the other end side. In the so formed metal fitting for a hose, an approximate shape is formed by effecting plastic working of a single material and the angle of the side taper surface 6a of the seal part 6 is set to 86.1-89.4 deg..</p> |
