Ships – Mother ship – floating landing platform – and harbor – Floating boat dock
Patent
1989-11-27
1992-01-07
Basinger, Sherman
Ships
Mother ship, floating landing platform, and harbor
Floating boat dock
114 45, B63B 3544
Patent
active
050780719
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention relates to a floating dock for mooring and storing small boats or the like above the water.
For maintaining and storing a small recreational boat, the boat is periodically landed to scrape off shells and seaweed from the hull thereof with a great deal of labor and expense, and thereafter to apply highly toxic fouling preventive coating thereto to attain a fouling preventive effect for the time being.
In addition to the expense of providing these measures periodically, fuel consumption is increased due to inefficient running of the boat prior to defouling and recoating.
In view of the foregoing, the present applicant has previously disclosed, in Japanese Patent Application Unexamined Publication No. 62-128896, a water trestle machine for small boats or the like in which when a boat is not in use, even on the sea, the entire hull can be always held above the water to avoid fouling of the hull, while when the boat is to be used, the boat can be easily lowered onto the water.
Such a water trestle machine for small boats or the like still has the following problem.
That is, in such a water trestle machine, floating members are located on opposite sides of the trestle body and the floating members are merely vertically moved up and down along the opposite sides, to place the hull in an upper trestle position and a lower trestle position. Therefore, the water trestle machine is required to be of a width which is much wider than the hull to be moved upwardly or downwardly.
This requires a wide mooring space in a wharf, and as a result, the number of mooring units which can be installed in the wharf is restricted.
It is an object of the present invention to provide a floating dock of which width can be varied.
SUMMARY OF THE INVENTION
The present invention relates to a floating dock capable of varying in width comprising a trestle body formed at its upper surface with hull supporting surfaces, floating members disposed movably up and down in contact with sides of the trestle body, and a trestle body elevating device capable of moving the floating members from a first position located at both sides of the trestle body for floating the trestle body at a lower level to a second position located below the trestle body for floating the trestle body at a higher level.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a front view of a floating dock capable of varying in width according to a first embodiment of the present invention;
FIG. 2 is a plan view of the same;
FIG. 3 is an enlarged view for explaining essential parts of a floating member guide construction;
FIG. 4 illustrates the floating dock in use;
FIG. 5 illustrates a modified example of a floating dock;
FIG. 6 is a front view of a floating dock according to a second embodiment of the present invention;
FIG. 7 is a plan view of the same;
FIG. 8 is a sectional view of an embodiment of the floating member;
FIG. 9 is an enlarged view for explaining essential parts of a floating member guide construction; and
FIG. 10 illustrates the state of operating lines of the floating dock during elevating of the trestle body.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS OF THE INVENTION
For describing the present invention in further detail, the present invention will be described hereinafter in accordance with the embodiments shown in the accompanying drawings.
First Embodiment
FIG. 1 shows the entire construction of a floating dock C including a trestle body 10 which can place a small boat B or the like in an upper or a lower position. The trestle body 10 is floated in water by floating members 16 which will be described later. The trestle body 10 comprises, in the illustrated embodiment, a pair of front and rear frame members 11, 12 disposed in front and at rear in a parallel spaced apart relation, and a pair of connecting frame members 13 connected to a central portion of the front and rear frame members 11, 12 to form a frame body.
The front and rear frame members 11, 12 are designed so that their left and right
REFERENCES:
patent: 3265024 (1966-08-01), Kramlich
patent: 3412702 (1968-11-01), Mann
patent: 3415212 (1968-12-01), Henning
patent: 3777691 (1973-12-01), Beale
patent: 4732102 (1988-03-01), Holman et al.
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