| 摘要 |
PURPOSE:To facilitate the maintenance of the couplings of hydraulic pipelines and improve the reliability of a tilt device by communicating the hydraulic pipelines on the inboard side with the upper and lower chambers in a cylinder through respective through holes and hydraulic passages. CONSTITUTION:Rotation axis parts 25, 26 piercing through the bilateral side walls of a case 7 horizontally as well as rotatably in the liquid-tight state are rigidly fixed at receiving parts 31 positioned facing the bilateral front end parts of a tilt cylinder 21. A hydraulic pipeline 23 on the inboard side is communicated with an upper chamber in a cylinder 21 through the through hole 25d of the rotation axis part 25 and a hydraulic passage 40, and a hydraulic pipeline 24 is communicated with a lower chamber in the cylinder 21 through the rotation axis part 26. In this case, as the couplings 23b, 24b of the hydraulic pipelines 23, 24 are positioned on the inboard side, the maintenance can be performed without landing a ship propulsion machine to disassemble it. In addition, as a hydraulic pipeline on the outboard side becomes unnecessary, the reliability of a tilt device can be improved. |
