ES2777327T3 - System of baskets for operator work on cargo containers on ships - Google Patents

Abstract

The basket system is designed to allow operators to easily and safely engage and unhook cargo containers in ships and ports, including three baskets (1,1 ', 1' '), related to each other, so that The baskets (1) and (1 ') have the ability to fold with respect to the upper basket (1' '), this being linked to the corresponding upper frame (2) and being with the crane through the so-called spreader through hooking elements (3) for containers. The device includes solar panels (5) for its electrical supply, defining access to the lower cabin (1) through a door (18), while communication between baskets is carried out by hatches (20), so that the hatches have automatic closing and locking elements.

Description

DESCRIPTION

Basket system for operator work on cargo containers on ships

OBJECT OF THE INVENTION

The present invention refers to a system of baskets to facilitate work at height by stevedores in lashing and unlinking cargo containers on ships, and more specifically to a system of baskets designed to increase the safety of stevedores and facilitate the access to the means of hooking and blocking the containers themselves and therefore to improve, facilitate and accelerate the loading and unloading operations of the containers on the ships.

The basket as a whole can work individually, sweeping one side of the containers, or in tandem, in which case it sweeps the containers from both sides.

BACKGROUND OF THE INVENTION

The cargo containers are secured by forming a block on the ship using metal pieces called twistlocks so that they remain secure during the crossing, loading and unloading. The containers are manipulated from a frame or structure of superior load called Spreader that has the characteristic of “taking and releasing” the containers automatically by means of some locks.

In a similar way said spreader can "catch or release" a basket, object of the invention, in which the stevedores are arranged to carry out the hooking / unhooking, locking / unlocking of the twistlocks, which secure the containers, prior to be downloaded.

In relation to the basket system, the existence of basket sets is unknown such as that described in the present application, so that the systems known to date are unreliable and insecure.

DESCRIPTION OF THE INVENTION

The recommended basket system is based on the fact that it comprises three interrelated baskets for operators, in such a way that the upper one is linked and secured by means of suitable hooking and locking elements to a horizontal structure and this to the frame or spreader while which is articulated at the bottom to the intermediate basket, allowing the intermediate and lower folded baskets to be positioned on a transport platform.

In this folded position of the two lower baskets, it is worth highlighting the fact that the upper basket is held in a vertical position attached to the horizontal structure and the latter to the upper spreader so that the lifting of the latter, by means of the crane, carries with it the positioning towards the vertical of the two lower baskets, said three baskets then forming a vertical column with hooking and locking means between them to maintain that working position.

Access to the baskets, as long as they are in a vertical position, is done through a door in the lower basket, while from one basket to another the passage is through hatches located at the base of each of them. .

The transport platform, in addition to the wheels, has support struts to keep the set of baskets at rest, in a stable way, also including folding ladders to access the work areas of the different baskets.

When it comes to arranging the baskets in tandem, there will also be folding access ladders to the intermediate or central turret in which there is a work area with ladders and trellises to be able to access the hooking and blocking means of the upper Spreader.

Solar panels are included to obtain electrical energy by charging about batteries that power the different electrical elements of the system, such as lighting elements and sound elements, etc.

Regarding the access door to the baskets, as well as the internal communication hatches between baskets, it should be noted that they have automatic closing and blocking elements.

The locking of the baskets in the vertical position is carried out by means of a manually operated lever, in combination with a locking latch that can be operated by said lever.

Each basket includes a control panel with start, stop and disconnection buttons, so that through the control panel of the upper cabin you can view the status of the three cabins, while through the panel of each one of the intermediate and lower cabins, only the status of these cabins is reported.

In addition, the control panel of each cabin incorporates an emergency button and an activation / deactivation button for the individual lighting elements.

Finally, to say that the baskets are equipped with light and acoustic signals by means of which the driver of the main crane is informed of the state of operation at all times.

These and other characteristics will be explained throughout the present description, which is made on the basis of a set of drawings that are described below.

DESCRIPTION OF THE DRAWINGS

To complement the description that is going to be made below and with the aim of helping to better understand the characteristics of the invention, according to a preferred example of a practical embodiment thereof, a set of drawings is attached as an integral part of said description. where with an illustrative and non-limiting nature, it has been represented the following:

Figure 1 shows a representation corresponding to a perspective view of the system of baskets for work by operators on cargo containers on ships unfolded, with the upper one linked to the upper horizontal structure, all made in accordance with the purpose of the present invention.

Figure 2.- Shows a view like the one in the previous figure but with the intermediate and lower baskets folded.

Figure 3.- Shows a perspective view of a tandem formed by two baskets like those represented in figure 2, all mounted on a rolling transport platform.

Figures 4 and 5.- They show respective views corresponding to details in perspective of the means or mechanisms that participate in maintaining the column in the vertical position that make up the three baskets represented in Figure 1.

Figure 6.- Shows a detail of the closing and blocking means of the lower access door to the baskets.

Figure 7.- Shows a perspective view of the detail of the intercommunication hatch between two baskets.

Figure 8.- Shows a view of a basket incorporating the corresponding control panel to govern the operation of the booths.

Figure 9.- Shows a detail of the closing and blocking elements of the access door to the lower basket.

Figure 10.- Shows a view corresponding to a detail of the wall drive lathe for folding and unfolding the corresponding ladder with which secure the safety hooks to the Spreader.

Figure 11.- Shows a detail in perspective of an upper part of the set where solar panels have been provided to power the system as well as the safety chains that join the safety basket to the upper extensible structure called spreader.

PREFERRED EMBODIMENT OF THE INVENTION

As can be seen in the outlined figures, the basket system of the invention comprises three baskets, a lower basket (1), an intermediate basket (1 ') and an upper basket (1' '), so that together they form a vertical column when they are deployed as shown in figure 1, and linked to a frame or upper horizontal structure (2) with elements (3) for attachment to a spreader for containers.

The assembly represented in Figures 1 and 2 is manipulated by means of a crane from which the Spreader hangs, through the fastening hooks (3).

The set of baskets can form an individual set or work in tandem, as shown in figure 3, so that in any case the structure (2) has safety chains (4) that are attached to the loading device. and unload the containers or Spreader. These safety chains are of mandatory manual operation at the beginning of operations and represent a second safety measure that would complement the main one.

The baskets (1-1 '-1'') are equipped with light and acoustic signaling means to inform the crane driver of the operational status at all times, as well as internal lamps to facilitate the work of the operators when there is little visibility, so that the entire electrical system depends on a pair of batteries whose recharge is carried out through the installation of solar panels (5), provided in the upper horizontal structure.

The assembly is transported by a loading rolling platform (6) provided with struts (7) to position it statically when it is moved by means of a port tractor and wheels (28).

As for the baskets (1-1 '-1' '), they must be left in a folded position on the loading rolling platform (6), always ensuring the correct mooring between the baskets themselves, and the baskets must never be left on the ground or deployed.

Say that the baskets, regardless of whether they work individually or in tandem, must be secured on the one hand by the locking and hooking means that form the elements (3) with the Spreader for containers and on the other hand by the safety chains (4) manually attached to said spreader.

Obviously, through the work area (9) it can be accessed by appropriate ladders (13) to be able to carry out the actuation of the safety chains after securing the operator by means of a harness attached to the structure of the assembly.

After the arrangement of the baskets (1-1 '-1' ') vertically, forming a column, this is secured in said position by means of the actuation of a lever (15) represented in figure 4, related to a spring (17 ), so that by virtue of the latter the system tends to keep the latch (16) closed, so that only by pulling the lever (15) it is possible to open it.

In relation to figures 6 and 7, it is said that access to the baskets is through a door (18) of the lower basket (1), with an automatic closing and locking mechanism (19), while internal access between baskets (1-1 '-1' ') is done through hatches (20) hinged on the floor of the baskets.

Also say that each cabin will have in the upper area with attachment points for the harnesses of the workers or operators, each one also including a control panel (21) with start and stop buttons, as well as connection / disconnection buttons. , emergency button, etc.

Claims (7)

1§.- System of baskets for work by operators on cargo containers on ships, intended to be linked superiorly to a frame or container loading structure of those used in ships and port areas commonly called Spreaders, being designed to be mounted on a platform transport movable by wheels, it is characterized in that it comprises three baskets (1,1 ', 1' ') for the work of operators, related to each other at different heights, the upper basket (1' ') being linked and secured by means of appropriate elements of locking to the upper frame (2), while below said upper basket (1 '') is articulated to the intermediate basket (1 ") allowing to position said intermediate basket (1 ') and the lower basket (1') folded over the corresponding rolling transport platform (6); with the particularity that the baskets have a lower access door (18) to the lower basket (1) and with internal communication hatches (20) r between intermediate (1 ') and upper (1' ') baskets, located on the floor of said baskets; the inclusion of locking means between baskets in the deployed and vertical position in their column having been provided; with the particularity of superiorly including solar panels (5) for obtaining electrical energy for powering the lighting elements and electrical operating components of the system by means of batteries. 2§.- System of baskets for work of operators on cargo containers in ships, according to claim 1§, characterized in that the lower access door (18) is complemented with automatic closing and blocking elements, including the hatches (20) elements timely latching and locking. 3§.- System of baskets for work of operators on cargo containers in ships, according to previous claims, characterized in that the blocking of the baskets (1,1 ', 1' ') in the unfolded and vertical position of the same, is carried out through a manually operated lever (15), in combination with a locking latch (16) associated with a spring (17). 4§.- System of baskets for work by operators on cargo containers on ships, according to previous claims, characterized in that inside each basket (1,1 ', 1'') A control panel (21) is included with start, stop and disconnection buttons, it being foreseen that the control panel of the upper cabin (1 '') includes information means on the status of the three cabins, while the The control panel of the intermediate and lower cabins includes information means for the status of said cabins. 5§.- System of baskets for work by operators on cargo containers in ships, according to claim 4§, characterized in that the control panel (21) of each cabin includes an activation / deactivation button for lighting elements, as well as a emergency button. 6§.- System of baskets for work by operators on cargo containers in ships, according to previous claims, characterized in that the set of baskets (1,1 ', 1' ') is capable of working individually or in tandem with another analogous set. 7§.- System of baskets for work by operators on cargo containers in ships, according to previous claims, characterized in that the baskets (1,1 ', 1' ') are equipped with light and acoustic signaling means to warn the crane operator of the status of the operation at all times.