| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suitably plate a corner part of a ring shaped groove, and to prevent generation of rust. <P>SOLUTION: The eye joint is provided with an eye part 20 having a longitudinal hole 21 to which a bolt having a flow passage inside thereof is inserted, the ring shaped groove 22 formed on an inner peripheral surface of the longitudinal hole 21, and a lateral hole 23 crossing the longitudinal hole 21 in the axial direction and communicating the groove 22 with the outside so that the outside and the flow passage are communicated with each other through the groove 22; and a pipe part 40 having an end integrally connected with the eye part 20 so as to be communicated with the lateral hole 23. A corner part 22c of the groove 22 has a tapered shape with a prescribed tilt angle. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
