| 摘要 |
<p>The two pipes (10,12) are assembled by the shank (28) of a fixing bolt (14) which passes through an aperture in each pipe flange (18,26). The aperture in each piece comprises a notch (20A,20B,22A,22B) whose depth is greater than the diameter of the bolt shank. The notches in the two pipes are arranged so that, in the assembled position, the notch openings are angularly displaced by 90 degrees from each other around the bolt axis . Each notch opening emerges laterally on the flange perimeter. The notches are delimited by two parallel sides (23A,23B) joined together at the notch bottom by a semi-circular portion (23C). The fixing bolt head (30) is supported on one of the pipe flanges and its nut (34) supported on the other pipe flange.</p> |
