| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a pipe connecting part structure capable of restraining generation of a burr in a boss part outer peripheral wall part. SOLUTION: When a boss part 11 is molded by two metal molds divided by a dividing surface including the axis of the boss part 11 by crossing at a right angle to a through-hole 11a formed in the direction perpendicular to the axis, a tapered surface 11c approaching the axis Q of the through-hole 11a as separating from a metal mold dividing part D when viewed from the axis P direction of the boss part 11 is formed over the vicinity from the metal mold deviding part D of the boss part 11 for engaging with a curved part 16b of an elastic pin 16 to thereby restrain generation of a burr in the metal mold dividing part D, to restrain the deterioration of installing workability of the elastic pin 16, and to prevent intrusion of the burr in a connecting hole 12.</p> |
