Lowerable platform with float for a watercraft
OwnerPeter A. Müllerinventor
Life of this patent
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Abstract
The invention relates to a lowerable platform (1) for a water craft (10), which can be also horizontally extended and to which a float (2) is fastened that comprises a closed hollow space (43) or an open hollow space (43), a buoyancy (A) acting upon the float (2) being generated by the air volume (L). As a result, the water craft's proper weight or the payload (N) of e.g. a tender boar (27) on the lowerable platform (1) can be compensated by the buoyancy (A). A hydrodynamic design of the float (2) additionally generates a hydrodynamic buoyancy (D1) which can be varied in terms of its height in relation to the current (S) by means (4, 37, 38, 39), depending on the float (2).
Claims28
Lowerable platform (1) for a watercraft (10) with an attached float (2), characterized in that a float (2) has a buoyancy force (A) which holds the platform (1) above the water line (WL) and the platform (1) is lowered against the buoyancy force (A) with a working cylinder (4) having the thrust force (K1), where in the platform (1) can be lowered below the water line.
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that the lifting mechanism (3) comprises a sliding mechanism (14), so that the lowerable platform (1) with the attached floats (2) can be moved horizontally or laterally.
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that a stationary upper platform (1a) or a transverse platform (1b) is located above or below the lowerable platform (1), wherein with the sliding mechanism (14) and by operating the working cylinder (4) and the horizontal working cylinder (31) the lowerable platform (1) with the attached float (2), the platforms (1, 1a) or (1, 1b) may form one plane.
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that is the lowerable platform (1) comprises a tender mount (23) which has at one location a roller pair (25), on the opposite side articulated joints (24) which are connected with the lowerable platform (1), and that the upper platform (1a) comprises ramps (28, 29) and an opening (3), so that the lowerable platform (1) can be moved horizontally underneath the upper platform (1a) while simultaneously the tender mount (23) moves in the same way on the upper platform (1a).
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that a swim ladder (33) is pivotally mounted on the float (2), wherein the swim ladder (33) can be telescoped, while the other end is, also pivotally, connected on the stern (8).
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that the float (2) comprises technical means (13).
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that the float (2) using the measurement sensor (37) which takes the RPM of the motor or of the propeller (36) or of the speed of the watercraft (10), and transmits the taken value to the controller (38) which according to a program activates the hydraulic unit (39), in such that the working cylinder (4) causes the lowerable platform (1) with the attached float (2) to lift, in order that the lower edge (U) of the float (2) is wetted in the water flow (S), either completely or partially or not at all, thereby producing a variable hydrodynamic buoyancy (D1).
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that a lift limiting means (11) or a variable lift limiting means (11a), which supported against the lowerable platform (1) or the float (2), is located at the stern (8), so that the lower edge (U) of the float (2) can be adjusted with respect to the flow (S) and can accommodate the static buoyancy forces (D2) and the hydrodynamic buoyancy forces (D1).
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that a lift limiting means (11) or a variable lift limiting means (11a), which is supported against the lowerable platform (1) or the float (2), is located onto the platform (1), so that the lower edge (U) of the float (2) can be adjusted with respect to the flow (S) and can accommodate the static buoyancy forces (D2) and the hydrodynamic buoyancy forces (D1).
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that a releasable lock (42) is attached on the float (2) which allows the float (2) to be fixed in one or more positions.
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that a coupling element (12b) is disposed on the float (2) and a complimentary coupling element (12c) is disposed on the stern (8), wherein the coupling elements can be coupled.
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that a float lock (12a) is arranged between the float (2) and the stern (8), which can be coupled together, wherein the locking cylinder (41) is used for unlocking.
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that activation of the working cylinder (4) by the controller (38) and the hydraulic unit (39) depends on the sensors (32, 40, 54, 55, 56, 57, 58).
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that instead of the air as a buoyancy medium, any other medium can be used that is lighter than water.
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that the float (2) covers the lifting mechanism (3).
Lowerable platform (1) according to one of the preceding claims,
- characterized in
- that the float (2) is a module (2a).
Dependencies are inferred from the claim text.