Device and method for lifting a watercraft using a chain
AssigneesThyssenkrupp Marine Systems GmbH, thyssenkrupp AG
InventorsHans Oesmann, Sebastian Halfmann, Ronja Bues
Life of this patent
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Abstract
A recovery apparatus and a recovery method is disclosed for recovering a watercraft, in particular for recovering a boat on board a mother ship. A frame actuator pulls a frame of the recovery apparatus relative to a carrying structure from a recovering position into a parked position. A chain drive moves a chain relative to the frame along a closed curve. The chain comprises at least one driver. A watercraft to be recovered is connected temporarily to the chain and is pulled out of the water by the movement of the frame relative to the carrying structure and by the movement of the chain having the drivers relative to the frame.
Claims25
A recovery apparatus for recovering at least one watercraft,
- wherein the recovery apparatus comprises:
- a carrying structure,
- a frame held by the carrying structure,
- an endless chain with a sequence of drivers, and
- a chain drive,
- wherein the frame is configured to carry a watercraft to be recovered,
- wherein the chain is mechanically connected to the frame and is movable relative to the frame along a closed curve,
- wherein the chain drive is configured to move the chain relative to the frame, and
- wherein the recovery apparatus is configured to pull a watercraft that is floating on water and is temporarily connected to a driver of the chain out of the water and onto the frame by moving the chain,
- wherein the recovery apparatus comprises a frame actuator,
- wherein the frame is linearly movable relative to the carrying structure between a recovering position and a parked position,
- wherein, when the frame is in the recovering position, the chain is located at least partially under water, and
- wherein the frame actuator is configured to pull the frame together with the chain and a watercraft temporarily connected to the chain from the recovering position into the parked position.
A method of recovering at least one watercraft using a recovery apparatus having a carrying structure, a frame held by the carrying structure, an endless chain that is mechanically connected to the frame and comprises a sequence of drivers, and a chain drive, wherein the method comprises:
- moving, with the chain drive, the chain relative to the frame along a closed curve,
- connecting the watercraft floating on water temporarily to a driver of the chain,
- pulling, with the recovery apparatus, the temporarily connected watercraft out of water and onto the frame by moving the chain, and
- carrying, with the frame, the watercraft out of water,
- wherein the recovery apparatus comprises a frame actuator, wherein the frame is linearly movable relative to the carrying structure between a recovering position and a parked position, wherein said pulling step comprises the steps in which the frame is moved into the recovering position such that the chain is located at least partially under water, and wherein the frame actuator pulls the frame together with the chain and the watercraft temporarily connected to the chain from the recovering position into the parked position.
Dependencies are inferred from the claim text.