Control apparatus of twin-azimuth propulsion unit for a ship

G - Physics – 05 – D

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114/32, 341/79

G05D 1/00 (2006.01) B63H 5/08 (2006.01) B63H 5/125 (2006.01) B63H 21/22 (2006.01) B63H 25/42 (2006.01)

Patent

CA 1120137

ABSTRACT OF THE DISCLOSURE Apparatus for maneuvering a ship having Z-type propel- ler structure. A maneuvering handle provides a proportional relationship of ship speed and ship direction with its inclina- tion angle and rotation direction respectively. A generally cylindrical rotation frame is rotatably supported by a stationary frame, a rotation shaft is disposed along the diametrical direction of the rotation frame, and a maneuvering handle is positioned at the approximately central portion of the rotation shaft. The lower end of the maneuvering handle is connected to the rotation shaft. The rotation shaft is rotated about its axis by the pivotal movement of the handle. Further- more, a hollow shaft is rotatably disposed coaxial with the rotation frame. The hollow shaft is provided with first and second central gears. A central shaft rotatably disposed in the hollow shaft has one end provided with an ahead-astern changing gear and the other end provided with an arm member. The central shaft further provides a loose gear and a bevel gear both being freely rotatable thereabout, and the arm member rotatably supports an intermediate shaft having one end provided with a first intermediate gear and the other end provided with a second intermediate gear. The loose gear is in meshing engagement with the first intermediate gear and the second central gear is meshed with the second intermediate gear.

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