RU91969U1 - MECHANIZED TRAP FOR SMALL VESSELS - Google Patents

Abstract

1. A mechanized ladder for small vessels mounted on a ship, characterized in that the ladder is fed to the shore by hand winch through the bow foundation as part of a block, retainer, precision feed screw and articulated device connecting the ladder to the ship, and holding the ladder above the water and it is fed up or down to the shore by a cable through a block on the mast with a second winch. ! 2. The mechanized ladder for small-tonnage ships according to claim 1, characterized in that for heavy ladders of greater carrying capacity, hoists are used instead of hand winches, and their power supply is provided by a small-sized portable gas generator.

Description

The claimed utility model relates to a device for a mechanized ladder for small vessels, containing a winch for extending the ladder to the shore, a foundation in the bow of the vessel with locking mechanisms and precise feeding of the ladder to the hinge assembly for connecting the ladder to the hull of the vessel and the second winch, which sets the ladder along the relief of the coast.

State of the art

Numerous small-tonnage fleet (for tourists or paratroopers) with moorings ensures the delivery of people to the shore using light wooden ramps.

However, in many cases it is required to bring people to the shore, not equipped with moorings. A wooden gangway is thrown from the vessel (2 boards fastened with cross-members), which can only be used by young people with great inconvenience and health risk. This prevents other categories of people from using tourism in water transport (pensioners, people with disabilities, children, etc.). In landing operations, soldiers suffer unjustified losses. The wounded are dying - they cannot use the water transport going to the hospital. The proposed device is also needed during rescue operations (for example, during a flood).

Description (disclosure) of a utility model

The claimed utility model is a ladder of increased strength and length. It is laid on a deck or superstructure and is limited in its movement by guides.

With the help of one winch and a rope, the ladder moves from the stern to the bow and gets to the bow foundation. In its guides, the gangway continues to move above the water to the shore. The second winch through the block at the top of the mast with its cable is attached to the middle of the ladder (through the eye, bracket and hook). The ladder is balanced and moves along the horizontal surface of the foundation. To enable centering of the holes in the ladder and in the foundation, the end of the ladder is held by the lid of the fixing device, and a horizontal jack ensures that the holes of the ladder and the foundation coincide. 2 bolts are inserted, screwed. The ladder is installed and freely moves on hinges up and down (after removal of a cover of a clamp. Also the bow pulley and a screw jack are removed).

Technical result

- Increased loading capacity of the ladder. Mechanization allows you to move not only a light gangway for small loads (tourists, rescuing residents during floods), but also a heavy gangway for heavy loads (fighters with hand guns, orderlies with a stretcher and a wounded man). In this case, the ladder can be made in the form of a bridge (small) truss;

- an increase in the turnover of ships with mechanized ladders due to the speed of unloading and loading of people;

- increase in routes for tourism due to new places of visit;

- involvement of large contingents of the population in tourism (pensioners, disabled people, small children, schoolchildren);

- the possibility of using electrification for heavy and long gangways on vessels of increased tonnage - by replacing hand winches with hoists powered by a small gas generator (there is experience with such electrification).

Description of drawings

The figure 1 of the drawing shows a General view of the device:

Pos. 1. - The vessel is proposed to be used from a small, auxiliary fleet. The vessel should be wide enough so that there are no problems with lateral stability when the ladder is extended above the water.

Pos. 2. - To place the ladder, either the main deck or the roof of the superstructure is used;

Pos. 3. - The ladder is flat or in the form of a frame truss bridge (can be made of steel, aluminum, wood);

Pos. 4. - guide ladders - along all its lengths. They are made of a wooden beam (if the roof of the superstructure is wood) or in the form of angular metal, if the deck is steel.

Pos. 5. - Manual winch or hoists powered by a small gas generator (for large heavy gangways)

Pos. 6. - Winch cables 5 - shown conditionally above the ladder.

Structurally, their location from the winch to the pulley 10 is under the ladder, and from the pulley to the end of the ladder.

Pos. 7. - Winch - similar to position 5.

Pos. 8. - Mast - a solid steel structure made of pipes (the structure is ordinary, not detailed). In the upper part of the mast, a block for the cable from the winch 7 to the middle of the ladder is fixed (to its eye, parts 3-9, Fig. 3)

Pos. 9. - Winch cable 7.

Pos. 10. - Winch cable pulley 5.

Pos. 11. - The bow foundation of the articulation of the ladder with the foundation and hull of the vessel.

Pos. 12. Swivel Bolt.

Pos. 13: Jack.

Drawing - Fig 2

Pos. 10. winch cable pulley 5.

Pos. 11. - The foundation of the articulation of the ladder with the hull.

Pos. 12. - Bolt - hinge for connecting the ladder with pos. 11.

Pos. 13. - A jack of exact centering of openings of a ladder and the base.

Pos. 14.-Locking device.

Pos. 15. - Boxes with hinged lids and bolt lock for installing the jack 13.

Size "H" - reference (not to scale). This is the width of the passage for passengers. Before the passengers leave the gangway, the foundation is closed with a lid similar to the gangway element - det. Pos. 3-7, Fig. 3. To do this, a frame is welded to the top of the foundation.

Figure 3.

Pos. 3 - Gangway - both ends of the gangway are identical.

Pos. 3-1 - Bowstring of the ladder.

Pos. 3-2 - The jack for the jack stop is welded to the poses 3-3 of Fig. 3.

Pos.3-3 - Pipe with nuts inside for children 12. Welded to the bowstrings - detail 3-1, Fig.3.

Pos. 3-4 - An eye for attaching a winch cable 5 (Fig. 1) through a connecting bracket.

Pos.3-5 - Crossbeams - are welded to the bowstrings, used to lay the flooring of the ladder, for which bars are attached to the crossbars.

Pos. 3-6 Bushings with internal through thread - are welded (along the conductor) to the ladder strings for installing rails of the guard rail (poses 3-8) and fastening the elements of the flooring of the ladder - view B.

Pos. 3-7 - Flooring elements are interchangeable.

Pos. 3-8 - Rack of the guard rail. Ropes are pulled through the openings in the uprights; a canvas or net is attached to them.

Pos. 3-9 An eye in the middle of the ladder under the cable from the winch 7.

The drawing of FIG. 4.

Pos.11 - foundation.

Pos.12 - Swivel bolt.

Pos. 12-1 - Washer.

(pos. 3-1) - Bowstring of the ladder.

Pos.12-2 - Nut under the bolt 12, is welded to det. 3-3 electro rivets.

Pos.16 - Plug - is placed on all open holes for bolts 12. It is screwed with an open-end wrench, for which blind plugs are welded into the cap head for the size of the wrench.

Utility Model Implementation

The claimed utility model can most effectively be used in applications on ships performing tourist routes, to shores that are not equipped with moorings, or in rescue operations to remove people from roofs of houses flooded by floods, or in landing operations and when crossing rivers in combat conditions or training maneuvers.

Preparation of the device for operation consists of the following operations - (figure 1):

- winding the cable from the winch 5 under the cable to the pulley 10 on the foundation 11, turning the cable around the pulley, dragging it to the end of the ladder and attaching it to dets.3-4 of figure 3 by means of a connecting bracket through the thimble of the end of the cable;

- winding the cable from the winch 7 to the eye 3-9 of Fig 3. This operation should be done when the middle of the ladder approaches the mast;

- start pushing the ladder to the shore when the end of the ladder goes to the locking device, - put on the roof of this device and, working with screws, set the minimum clearance between the ladder and the lock;

- install the jack 13, push it into the ladder;

- prepare the bolts 12, - the ladder is suspended in the middle and balanced in a horizontal position, but due to easy rolling it violates the alignment necessary for installing the bolts;

- start the exact alignment of the holes in the rack of the foundation 11 and in the ladder 3-1 of figure 4, working with a jack - 13, figure 2;

- as soon as the marks on the index parts coincide, clamp the end of the ladder with a latch;

- insert the bolts 12 into a regular place and wrap them with knobs that are designed for round nuts with radial holes;

- remove the axis 10 with a pulley, remove the jack 13 of figure 2, disconnect the winch cable 5, remove the latch cover (view A pos. 14, figure 2);

The ladder freed from the clamp, is in a suspended state - it is held by the cable 9 (Fig. 1) of the winch 7 in a horizontal position. Depending on the topography of the coast, the gangway can remain in a horizontal position, rise up (rescue people from the roofs of houses during a flood) or go down. The ship moves forward under its own power, the gangway descends to the shore. At the end of the ladder, a wooden support is laid on the ground, similar to the elements of the deck deck, to avoid digging the ladder into the ground.

To clean the ladder, the cable from the winch 5 is attached to the eye of the ladder (from the side of the winch 5), the ladder is lifted by the winch 7 to a horizontal position, the bolts 12 are removed, the winch 5 pulls the ladder onto the ship. The winch 7 releases the rope 9, this rope is disconnected from the ladder. The ladder is pulled to its transport location by a winch 5, Fig. 1.

When using vessels of a larger tonnage (from the auxiliary fleet) - with mechanized ladders, longer, heavier, electric hoists are used instead of hand winches. The source of electrical energy for them is a small, portable gas generator. A typical vessel for equipping with a mechanical gangway for MO can be a landing barge, and for Min. Tourism - a vessel from the magazine “Boats and Yachts” p. 51, No. 1, 2007 with a long superstructure roof, where it is convenient to place a gangway. This design is shown in figure 1 of the drawing to the patent. Installation of the ladder will take several minutes, it can be put forward partially in advance, when approaching the shore. The standard time will be set when testing a prototype.

Claims (2)

1. A mechanized ladder for small vessels mounted on a ship, characterized in that the ladder is fed to the shore by hand winch through the bow foundation as part of a block, retainer, precision feed screw and articulated device connecting the ladder to the ship, and holding the ladder above the water and it is fed up or down to the shore by a cable through a block on the mast with a second winch. 2. The mechanized ladder for small-tonnage ships according to claim 1, characterized in that for heavy ladders of greater carrying capacity, hoists are used instead of hand winches, and their power supply is provided by a small-sized portable gas generator.