Hoisting device, with compensator built into hoisting cable system
First Claim
1. A hoisting device (1) for a vessel comprising:
- a mast (2) on the top side provided with fixed cable blocks;
a trolley (10) including pulleys, which are moveable, and on the bottom side is provided with means (12) for gripping a load;
hoisting means, at least equipped with a hoisting cable (16) and a winch (18), the hoisting cable (16) being guided over the cable blocks and pulleys of both the mast and the trolley, to move the trolley (10) relative to the mast (2) with the aid of the hoisting means; and
at least two compensators in the form of pneumatic or hydraulic cylinders, for damping movements of the vessel (70) as a result of heave and beating of the waves, characterized in that the hoisting cable (16) is guided over cable pulleys (20) which are connected to the ends of the compensators, the mast is designed in the form of a tube or sleeve, and in that the compensator (21) is placed in the mast (2) and each of said compensators are connected to cable pulleys (20) at its end.
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Accused Products
Abstract
The invention is a hoisting device for a vessel with a mast in the form of a tube or sleeve with fixed cable blocks on the top side, a trolley with moveable pulleys, a feature on the bottom side for gripping a load, a hoisting system with at least a hoisting cable and a winch, wherein the hoisting cable is guided over the cable blocks and pulleys of both the mast and the trolley in order to move the trolley relative to the mast with the aid of the hoisting system, and a compensator located in the mast in the form of a pneumatic or hydraulic cylinder for damping movements of the vessel as a result of heave and beating of the waves characterized in that the hoisting cable is guided over cable pulleys that are connected to the ends of the compensator.
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Citations
13 Claims
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1. A hoisting device (1) for a vessel comprising:
- a mast (2) on the top side provided with fixed cable blocks;
a trolley (10) including pulleys, which are moveable, and on the bottom side is provided with means (12) for gripping a load;
hoisting means, at least equipped with a hoisting cable (16) and a winch (18), the hoisting cable (16) being guided over the cable blocks and pulleys of both the mast and the trolley, to move the trolley (10) relative to the mast (2) with the aid of the hoisting means; and
at least two compensators in the form of pneumatic or hydraulic cylinders, for damping movements of the vessel (70) as a result of heave and beating of the waves, characterized in that the hoisting cable (16) is guided over cable pulleys (20) which are connected to the ends of the compensators, the mast is designed in the form of a tube or sleeve, and in that the compensator (21) is placed in the mast (2) and each of said compensators are connected to cable pulleys (20) at its end.
- a mast (2) on the top side provided with fixed cable blocks;
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2. A hoisting device (1) for a vessel comprising a mast (2) on the top side provided with fixed cable blocks;
- a trolley (10) including pulleys which are moveable, and on the bottom side is provided with means (12) for gripping a load;
hoisting means, at least equipped with a hoisting cable (16) and a winch (18,19), the hoisting cable (16) being guided over the cable blocks and pulleys of both the mast and the trolley, to move the trolley (10) relative to the mast (2) with the aid of the hoisting means; and
a compensator (21) in the form of a pneumatic or hydraulic cylinder, for damping movements of the vessel (70) as a result of heave and beating of the waves, characterized in that the hoisting cable (16) is guided over cable pulleys (20) which are connected to the ends of the compensator (21), the mast is designed in the form of a tube or sleeve, and the compensator (21) is placed in the mast (2). - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
- a trolley (10) including pulleys which are moveable, and on the bottom side is provided with means (12) for gripping a load;
Specification