| 摘要 |
There is provided a hydraulic steering assembly for applying a force to a tiller of a marine, outboard propulsion unit and for rotating said propulsion unit about a steering axis between a center position and hard over positions to each side of the center position, the propulsion unit being supported for arcuate movement about a tilt axis which is generally perpendicular to the steering axis. The steering assembly comprises a hydraulic steering actuator including a cylinder and an elongated piston rod reciprocatingly mounted within the cylinder and extending through the cylinder for movement along a piston rod axis. The piston rod has opposite ends. A pair of support arms is pivotable about the tilt axis of said propulsion unit and is connected to the piston rod near the opposite ends thereof. The support arms allow arcuate movement of the rod about the tilt axis, maintaining the rod axis parallel to the tilt axis. A pivot member is pivotally mounted on the tiller of said propulsion unit for pivoting about a first link axis which is parallel to the steering axis. There is a pair of support arms, each said support arm being connected to the cylinder and having a portion extending radially outwards with respect to the piston rod axis. There is a pivotal connection between each said support arm and said pivot member including a cylindrical projection integral with one of said each support arm and said pivot member and a complementary cylindrical recess on another of said each support arm and said pivot member rotatably receiving the cylindrical projection. Preferably the cylindrical member and said one of said each support arms and said pivot member comprise one piece. In one example each cylindrical member is on one said support arm and forms part of an end fitting for the cylinder.
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