Patent ID: 9592887
Date: 2017-03-14
CPC Classifications: B63B

Claim:
1. A watercraft comprising: a hull for locating on water, the hull having a stern provided with a stern compartment inside said hull, said stern compartment being closed at least at its bottom end by a movable portion of a stern platform, said compartment opening astern of the watercraft, wherein said movable portion of the stern platform is movable from a first upper position when the compartment is closed at its bottom to a second lower position whereby the movable stern platform can be lowered relative to the hull into the water, wherein the stern platform projects generally horizontally from the bottom of the stern to provide a generally horizontal upper planar surface, an actuator for moving the movable portion of the stern platform from the first position to the second position, the actuator selected from the group consisting of an electric motor-driven actuator, a hydraulic actuator, and a pneumatic actuator, said actuator associated to the hull, wherein said bottom end of the stern compartment is arranged for being at least in proximity of the water, said movable portion of the stern platform being able to shift from the first position into the water at the second position with a translational motion parallel to a portion of the hull along the portion of the hull, but remaining in proximity of the hull and maintaining the upper planar surface of the moveable portion of the stern platform on a plane parallel to the plane on which the upper planar surface of said movable portion of the stern platform lies when the compartment is closed at its bottom, said stern compartment being flooded as a result of said motion of the stern platform, wherein said actuator is associated to the hull portion along which the movable portion of the stern platform shifts, wherein said actuator is of a telescopic kind and comprises a plurality of elements movable relative to one another, one of said elements supporting the movable portion of the stern platform, wherein a first element of said plurality of elements is integral with the portion along which the movable portion of the stern platform shifts, a second element movable relative to said first element being provided, wherein the portion of the hull along which the moveable portion of the stern platform shifts with the translational motion comprises parallel slides in contact with the moveable portion of the stern platform, wherein the slides and plurality of elements movable relative to one another are lower than the generally horizontal upper planar surface of the movable portion of the stern platform in the first upper position, wherein the telescopic element supporting the movable portion of the stern platform extends downwardly relative to the first telescopic element, when the movable portion of the stern platform is in the second lower position.