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US 2006/0065113 A1Published application
Method for use of a maritime unit and maritime unit
OwnerPasi Tormala, Iikka Pitkaneninventors
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OwnerPasi Tormala, Iikka Pitkaneninventors
Estimating the term…
The invention relates to a method for operating a maritime unit (1), said maritime unit comprising a frame structure (2), which is provided with at least power production and/or drive assemblies for the maritime unit, and at least three legs (3) operated by a jack mechanism (5), on the one hand for steadying the maritime unit (1) on the seabed by driving the legs (3) from a standby position, as required by the maritime unit's shipping condition, downwards in a direction substantially vertical with respect to the frame structure (2) and, on the other hand, for releasing the same from the seabed by driving the legs (3) upward relative to the frame structure. The maritime unit (1) has at least its legs (3) upward relative to the frame structure. The maritime unit (1) has at least its legs (3) operated on a so-called disk brake principle for enabling a substantially stepless drive therefor, particularly regarding the manipulation and locking thereof, whereby the maritime unit has each of its legs (3) provided with a brake disk system (3a), such as one or more brake flanges (3a′) or the like, extending longitudinally of the leg and, on the other hand, the maritime unit has its frame structure (2) provided with a brake system (5a), such as one or more brake shoe elements (5a′) or the like, operable in a vertical direction by means of a jack mechanism (5). The invention relates also to a maritime unit operating in accordance with the method.
A method for operating a maritime unit that is especially intended for offshore operations, such as a jack-up type oil drilling unit, a liftboat type offshore vessel and/or the like, said maritime unit comprising a frame structure, which is provided with at least power production and/or drive assemblies for the maritime unit, and at least three legs operated by a jack mechanism, on the one hand for steadying the maritime unit on the seabed by driving the legs from a standby position, as required by the maritime unit's shipping condition, downwards in a direction substantially vertical with respect to the frame structure and, on the other hand, for releasing the same from the seabed by driving the legs upward relative to the frame structure, wherein the legs of the maritime unit are operated on a so-called disk brake principle for enabling a substantially stepless drive therefor, particularly regarding the manipulation and locking thereof, wherein the maritime unit has its leg first of all actuated by means of a brake disk system, which includes one or more brake flanges, extending longitudinally of the leg and, on the other hand, by means of a brake system, mounted in connection with the maritime unit's frame structure and including at least two brake shoe elements, being set one below the other in a vertical direction, whereby said shoe elements apply their action on the same brake flange of the brake disk system and are operated in the vertical direction by means of separate jack mechanisms, such as hydraulic cylinders or the like.
A maritime unit, especially intended for offshore operations, such as a jack-up type oil drilling unit, a liftboat type offshore vessel, and/or the like, comprising a frame structure, which is provided with at least power production and/or drive assemblies for the maritime unit, and at least three legs operated by a jack mechanism, on the one hand for steadying the maritime unit on the seabed by driving the legs from a standby position, as required by the maritime unit's shipping condition, downwards in a direction substantially vertical with respect to the frame structure and, on the other hand, for releasing the same from the seabed by driving the legs upward relative to the frame structure, wherein the legs of the maritime unit are adapted in a per se known manner to be operated on a so-called disk brake principle for enabling a substantially stepless drive therefor, particularly regarding the manipulation and locking thereof, characterized in that the maritime unit has its leg provided with a brake disk system, which includes one or more brake flanges, extending longitudinally of the leg, and, on the other hand, the maritime unit has its frame structure provided with a brake system, which includes at least two brake shoe elements, being set one below the other in a vertical direction, whereby said shoe elements apply their action on the same brake flange of the brake disk system and are operated in the vertical direction by separate jack mechanisms, such as hydraulic cylinders or the like.
Dependencies are inferred from the claim text.