KR20010082066A - Craft for embarking/landing on unequipped shoreline - Google Patents

Abstract

PURPOSE: A catamaran type ship is provided to quickly unload/load a cargo at a coastline having no pier equipment. CONSTITUTION: A watertight box-shaped movable platform(15) is arranged between two left and right hulls(10) of a catamaran shape. An upper part of the platform forms a traveling surface to support a cargo. Unfoldable ramps are arranged in both end parts of the platform. The platform and the ramps existing in an unfolded position constitute a loading passage having a uniform width equal to an interval between the two hulls. The ship has a mechanism capable of floating the ship by either of only the hull of the catamaran ship or the whole area of the platform and the hull by changing a position of the movable platform.

Description

Craft for embarking / landing on unequipped shoreline}

The present invention is particularly suitable for crafts that allow a person to be transported to a coastline without an anchorage, in particular a person and / or a general vehicle or a military vehicle, while at the same time, for example, to enable rapid transportation between an ocean vessel and a coast. It is about.

Currently, landing from the ship to the shore is carried out using a craft in the form of a landing craft using a hovercraft or helicopter.

Landing craft in the form of landing craft has a shallow draught for landing on coasts of gentle gradients, but its limitations arise due to its low speed and the fact that its shallow draft and upper weight are large. Have.

High speed vessels require deep drafts, which makes access to beaches with gentle slopes impossible.

Finally, the use of a helicopter to land a vehicle from a ship requires the use of a special vessel with a platform, and also the main use when landing an armed vehicle such as a tank due to the limitation of the load the helicopter can carry. It is a disadvantage.

The present invention aims to produce a landing craft characterized by high transport speeds on the one hand and the ability to land a transport object on a gentle slope on the other hand.

As a result, an object of the present invention is a raft-type craft for embarking a person or vehicle to be transported on a coastline without a berth, which is provided between two lateral hulls of the chock, the upper side of which is a driving surface. And a movable box in the form of a waterproof box having a deployment inclined portion at each end, wherein the movable platform and the inclined portion are spaced between the two hulls when the inclined portion is deployed. To form a boarding corridor of the same uniform width, so that the craft floats on the water by either the hull of the raft or the entire area of the platform, or floats on the water by the raft hull alone. And a mechanism for changing the relative position of the hull of the raft and the movable platform. It is about craft.

According to one embodiment of the present invention, the mechanism is adapted such that the two lateral hulls of the raft are connected by beams at their respective ends and at the top, the lift or transport position, and the platform to reduce the draft of the craft. It is formed by providing lifting means to position the platform in a lowered or embarked position that provides additional flotation.

According to the invention, the two hulls are connected by a winged cross member at the bottom, and the box constituting the movable platform is formed in such a way that the cross member enters the lower side of the box at the lowered position. According to the invention, a movable flap can be arranged in the profiled cross member to adjust the balance of the moving craft according to sea conditions and center of gravity. These flaps can be used as stabilizers for high speed transportation in rough seas.

According to another feature of the invention, the means for lifting the movable platform comprises a mechanical guide by an articulated arm, can be locked in a raised position and a lowered position, and is configured in a two-way actuating form that is operable in both directions. .

According to the invention, the means for guiding the movable platform may be formed in the form of a mechanical guide system on the rail, or may be formed using a chain or other suitable system.

According to the invention, the platform can be locked in the raised and lowered positions using a pin or bracket system, such as a retractable form, or using a mechanical latch.

1 and 2 show schematic views of a craft according to the invention in transport and landing positions, respectively.

3 and 4 are perspective views showing the craft of the present invention in a transport position and a landing position, respectively.

5 is a perspective view similar to FIGS. 3 and 4 showing the craft without the movable platform;

6 is a front view of a craft according to the present invention.

* Description of the simple symbols for the main parts of the drawings *

10, 12: hull 15: movable platform

16, 17: crossing member 21: movable flap

With reference to the accompanying drawings showing an embodiment of the present invention will be clearly understood the advantages and features of the present invention. The characteristic of this invention is not limited only to a following example.

Referring to the drawings, a craft of the present invention in the form of a raft is shown, comprising two hulls 10, 12 connected to each other by beams 11, 13 at each end and top thereof. This makes it possible to form a structure that can be assembled to maintain rigidity independent of the movable platform 15 to be described below. In the illustrated embodiment shown in the figures, the two hulls 10, 12 are connected by profiled bottom cross members 16, 17 at the bottom, and at each end thereof, and the hulls 10, 12. In the profiled keel region, the transverse members 16, 17 are in the shape of wings, thus creating a partial thrust effect that ensures relatively high speed. These transverse members 16, 17 can be equipped with a movable flap 21 as shown in FIG. 6, so that the balance of the craft moving along the sea condition and center of mass can be adjusted. These flaps may be used as stabilizers during high speed transportation in rough seas.

The movable platform 15, manufactured in the form of a waterproof box, is located between two hulls 10, 12 and forms part of the waterproof box, the upper part of which is an armed vehicle in FIGS. 1 to 5, and in FIG. 6. The running surface which supports the object of transportation shown as a truck is formed. At each end of the movable platform 15, deployable ramps 18, 19 are located respectively, so that the platform 15 and the ramps 18, 19 are two hulls 10, 12. A boarding corridor with a uniform width equal to the space therebetween is formed (see FIG. 4). The inclined portions are preferably formed in a double folded form that can be extended outward. In the folded position, they protect the object of transport carried by the craft from waves or sprays (see Figure 3).

When the hulls 10, 12 are connected by crossing members 16, 17 (see FIG. 5), the crossing members are placed under the platform when the movable platform 15 is in the lowered position, which is the eyepiece. Protect them at the time (see FIG. 2).

In addition, the craft comprises lifting means, schematically depicted in the figures by reference numerals 20 and 20 ', which are designed to position the platform in an elevated or transported position and in a lowered or embarked position, respectively. In the embarkation position, the boxes constituting the platform provide additional buoyancy, resulting in shallow drafts and berthing to the shore.

These lifting mechanisms may, for example, be in the form of mechanical guides by articulated arms that can be locked in raised and lowered positions and can be operated in both directions. These bidirectional actuations can be accomplished using, for example, worm and leg type systems or using dual actuation RAMs. The movement of the platform is controlled from the bridge.

In the embodiment shown in FIG. 6, reference numeral 24 denotes a system for guiding the movable platform 5, which is a mechanical guidance system on a rail or an articulated arm as described above or optionally a chain or a predetermined one. Other suitable devices. 6 shows a device for locking the movable platform 15 in the raised position 22 or in the lowered position 23. The device may be formed in the form of a retractable pin or bracket, or may be a mechanical latch or any other suitable system.

According to the invention, the above-mentioned bidirectional actuation portion, schematically illustrated at 25 in FIG. 6, acts directly on the movable platform 15, or via a winch or rack which selectively actuates the cable via the articulated arm described above or optionally. It may be manufactured in the form of a double acting ram acting via or alternatively a geared motor unit that drives the chain. It is also possible to use a combination of the systems described above, or some other means of providing power in both directions.

Propulsion is preferably provided by a hydrojet with a very short stopping distance and a maneuverable directional nozzle and a reverse jet. This hydrojet, not shown in the figure, is arranged symmetrically on its bottom in two lateral hulls 10, 12. It is also possible to provide a lateral thruster in front of the vessel to make lateral control of the craft easier.

During transportation (FIGS. 1 and 3), the craft according to the present invention has a configuration for navigation on its two profiled hulls 10, 12, which enable high speed even in rough seas. The transport object is carried on the platform 15 located at the top of the hull and is protected by the bow and stern slopes 18 and 19.

When approaching the shore (FIGS. 2 and 4), the platform 15 is lowered to the bottom of the hull 10, 12, at which point the craft is at a sufficiently low value that the craft can reach the edge of the shore. Provided with additional flotation to reduce draft, the incline 18 can be deployed to land people and vehicles in a conventional manner.

The platform 15 and its slopes 18 and 19 constitute a boarding corridor of uniform width suitable for installations arranged in a raft of landing craft transport operations.

The device of the present invention can be used for high speed transportation of people, equipment, vehicles by sea or river, and can be used for example for the following purposes.

Transport of environmental protection facilities for the installation of civil protection facilities along river banks or at certain points along the coastline.

Transport work for humanitarian purposes along shorelines without berths.

Transportation work by river or sea, without berths or with limited or very poor facilities.

The transport of goods by sea from deep sea vessels on shorelines or banks with no anchoring or very poor anchoring facilities.

The above advantages of the present invention can be obtained.

Significant transport speed capacity can be obtained even in rough seas when the platform is in an elevated position.

Significant reduction in draft allows the runway to be positioned above the water at the position where the loading platform is lowered, which allows access to a point very close to the edge of the coast, and the presence of the forward slope further reduces the amount of water that must be overcome. .

Good maneuverability at transport and landing positions.

The levitation surface at the eyepiece is wide, providing high sensitivity to the movement of the center of mass and significant flexibility in the load distribution scheme.

Flaps 21 can be provided in the profiled lower cross members 16, 17, which are profiled in such a way that they balance the moving craft according to sea conditions and center of mass, and these flaps serve as stabilizers. Can be used.

The present invention is not limited to the above-described embodiment and the above-mentioned matters, and includes all modifications thereof.

Claims (11)

In a raft-type craft for getting on and off a transport object such as a person or a vehicle on a coastline without a berth, A movable box in the form of a watertight box provided between two lateral hulls of the chock, the upper portion of which is supported by the object by forming a running surface, and having deployment ramps at each end; And the inclined portion forms a boarding corridor having a uniform width equal to the space between the two hulls when the inclined portion is deployed, The relative position of the raft's hull and the movable platform so that the craft floats on the water by either the hull of the raft and the entire area of the platform, or by the raft hull alone. Craft containing a mechanism to change. 2. The two lateral hulls of the raft are connected by beams at each of their ends and at the top, And a lifting means provided to enable the platform to be positioned in a raised or lowered position and a lowered or unloaded position providing additional lift to reduce the draft of the craft. The method of claim 1, wherein the hull is connected by a wing-shaped cross member at the bottom, The box constituting the movable platform is formed in such a way that the crossing member enters the lower side of the box in the lowered position. 4. The craft of claim 3 wherein said cross member is mounted with a movable profiled flap. 3. The craft of claim 2 wherein the means for lifting the movable platform comprises a mechanical guide, which can be locked in a raised position and a lowered position, and constructed in a two-way actuated form that is operable in both directions. 6. The craft of claim 5 wherein the means for guiding the movable platform consists of a mechanical guide on the rail or a system comprising an articulated arm or chain. 6. The craft of claim 5 wherein the movable platform can be locked in a raised and lowered position using a pin or bracket system, such as a retractable form, or using a mechanical latch. The craft according to claim 5, wherein the two-way actuation of the lifting means is provided using a double acting ram or a wrench for actuating the cable, or optionally using a chain driven by a geared motor unit. 6. The craft of claim 5 wherein the two-way actuation of the lifting means is provided using a worm and a rack system. The craft of claim 1 comprising a propulsion system in the form of a hydrojet arranged symmetrically in two lateral hulls. 11. The craft of claim 10 further comprising an auxiliary thruster provided in front of each of the two hulls.