Ships – Steering mechanism – Rudders
Patent
1982-02-11
1984-05-15
Basinger, Sherman D.
Ships
Steering mechanism
Rudders
114167, B63H 2506
Patent
active
044481462
DESCRIPTION:
BRIEF SUMMARY
SUMMARY OF THE INVENTION
The invention relates to a rudder, particularly a BECKER high-performance rudder, with a stabilizer articulated to the rudder plate for ocean-going vessels.
The most varied solutions have already been proposed for the articulation of the stabilizer in the case of stabilizer rudders for ocean-going vessels. It is common to all the known solutions that the particularly wear-prone parts of the articulation for the forced guidance of the stabilizer can only be replaced as a result of the considerable expenditure and mainly by working underwater.
The problem of the present invention is to provide a sliding swivel piston articulation for the stabilizer of a rudder, particularly a BECKER high-performance rudder with a forcibly guided stabilizer, permitting the forced guidance of the stabilizer as a function of the angular position of the main rudder plate with an exclusively horizontal transfer of forces and which permits an effortless replacement of worn parts by untrained personnel without using lifting tackle and without carrying out work underwater.
According to the invention this problem is solved by a rudder of the aforementioned type constructed in such a way that the stabilizer has a fork-like sliding bearing for a swivel piston made from a material which is resistant to salt water, such as high-grade steel, which is held and guided by means of interchangeable guide or slide blocks of plastics materials, particularly polyamide, between the fork or pivot arms of the sliding bearing and which is pivoted on a hinging bolt fixed to the hull.
Stabilizer actuation in all rudder positions is possible with a sliding swivel piston articulation constructed in this way with a forcibly guided rudder, particularly a high-performance rudder. Worn parts, in this case the guide blocks and which are more particularly made from polyamide, can be replaced without difficulty by untrained personnel, without it being necessary to work underwater. In addition, a full-area engagement of the swivel piston on the fork or pivot arms of the sliding bearing, accompanied by the interposing of interchangeable guide blocks is ensured.
Further advantageous developments of the invention can be gathered from the subclaims. The construction according to FIG. 6 is particularly advantageous and in this case each guide block which is pivotable about its vertical axis is held in its recess in the fork or pivot arms, so that there is an automatic setting and alignment of the guide blocks with respect to the swivel piston position and simultaneously tilting of the swivel piston is prevented. In an advantageous embodiment the hinging bolt for the swivel piston carries a bronze sleeve and at its free end there is a limiting disk on which is provided a bush made from plastics material, particularly polyamide for supporting the swivel piston. This construction of the hinging bolt in conjunction with the mounting of the swivel piston on the latter makes it possible to bring about a height compensation in the vicinity of the fulcrum, whilst the guide blocks and an additional slide block made from plastics materials, particularly polyamide, arranged on the base plate between the fork or pivot arms of the sliding bearing assist in preventing any tilting of the swivel piston. The guide blocks used absorb forces directed in the same or opposite directions.
BRIEF DESCRIPTION OF THE DRAWING
The invention is described in greater detail hereinafter relative to the non-limitative embodiments and the attached drawings, wherein show:
FIG. 1: a high-performance rudder with a stabilizer and the sliding swivel piston articulation in a diagrammatic view.
FIG. 2: the stabilizer with the sliding bearing for the swivel piston in a diagrammatic view from above.
FIG. 3: the sliding bearing with the swivel piston in a side view.
FIG. 4: a vertical section along line IV--IV of FIG. 3.
FIG. 5: a vertical section along line V--V of FIG. 3.
FIG. 6: a vertical section along line VI--VI of FIG. 3.
FIG. 7: a vertical section along line VII--VII of FIG
REFERENCES:
patent: 3856423 (1974-12-01), Uchida
Basinger Sherman D.
Willi Becker Ingenieurburo GmbH
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