FI112053B - Mechanism for hinging the cargo ship cargo hatch to the hull - Google Patents

Description

112053

MECHANISM FOR HANDLING THE CARGO SHIP DOOR TO SHIP FRAME

The present invention relates to a mechanism for hinging a cargo ship cargo hatch to a ship hull structure comprising, in addition to hinging the cargo hatch and the hull structure, at least one actuator mounted between the cargo hatch and the hull structure, such as a hydraulic cylinder having a substantially on the contrary, for which, in the closed position, brackets are provided for supporting the cargo hatch from below.

The invention relates specifically (but not exclusively) to hinging the cargo hatch of the intermediate deck. The cargo deck is a cargo hatch below the weather deck for cargo on cargo ships. The hatch covers are traditionally 15 either actuated by a crane (lifted out and in place) or, in principle, cylindrical panels that pivot around a single hinge point. The crane-operated hatches may have struts at various heights in the hold, so height adjustment is possible. When the crane-operated intermediate deck panels are not in use, they are stacked on top of the weather deck or in the hold or can be left completely off the ship. The height position of the hinged door cannot be adjusted.

'Mil * ·, ···, Crane operation of intermediate decks is slow and cumbersome. Frequently, intermediate decks are bulky and heavy structures, which may also result in inadequate lifting capacity of the cranes available in ports. Hinged solutions, in their storage position (ie when there is no cargo on them), are in a vertical cargo space, thus reducing the available '* ··' cargo space. Panels in the hold when handling cargo may also be damaged.

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It is an object of the present invention to provide a novel and more versatile and additionally useful mechanism for slamming the cargo hatch of a cargo ship. The mechanism according to the invention is characterized in that »» 1 I | The hinging of the hatch cover to the hull structure is accomplished by a structure which: 35 allows limited movement of the hatch hinge end in a height direction such that the hatch can be set to different operating heights when the hatch is closed.

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A preferred embodiment of the invention is characterized in that said structure is formed by an articulated arm with one end hinged to said frame structure and an opposite end to the cargo hatch, and that the hatch supporting brackets in the closed position are arranged in at least two different heights.

Another advantageous embodiment of the invention is characterized in that at least the upper brackets are operable both in the operating position in which they support the hatch and in the rest position where they enable the hatch to be pivoted on or away from the lower brackets.

Yet another preferred embodiment of the invention is characterized in that the engagement of the upper brackets between the operating position and the resting position is performed manually, hydraulically, or the like.

Advantages of the invention include quick and easy operation, which does not require a crane. The effective cargo space is hardly lost with the hatches in the stowed position. The mechanism is simple and reliable. Opening, closing, lifting and lowering the door can be accomplished with one actuator. The mechanism according to the invention allows: ··: to list both the opening and closing of the intermediate lid and the lifting and; · '\ Lowering to different altitudes in the cargo space.

The invention will now be explained in more detail with reference to the accompanying drawings, in which: Figure 1 shows a cargo ship and its cargo hatches.

Fig. 2 shows a hatch arrangement with a mechanism according to the invention, ... · with the intermediate cover hatch with the lowest bracket in the operating position and the weather cover hatch in the closed position.

Fig. 3 shows the same as Fig. 2, but the weather cover hatch is in the open-35 position.

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Fig. 4 shows the same as Fig. 3, but now also the intermediate lid hatch is in the open position.

Fig. 5 shows the same as Fig. 4, but now the upper brackets are activated 5 and the intermediate cover hatch begins to pivot on the upper brackets.

Fig. 6 shows the same as Fig. 5, but now the intermediate cover hatch has turned to the upper brackets, i.e. the so-called. storage position.

Fig. 7 shows the same as Fig. 6, but now the weather cover hatch is turned to the closed position.

As can be seen in Figure 1, there is a so-called "cargo space" above the cargo space 1. an intermediate cover, the hatches 2 of which are shown in the drawing both in the open position and in the closed position. The dashed-15 lines depict the trajectory of the hatch covers. Above the intermediate cover hatches 2 there are weather cover hatches 3, which are also shown in both open and closed positions. Cargo - eg steel rolls 4 - can be carried over the covers 2 of the intermediate deck.

Figure 2 shows the hinge mechanism according to the invention in more detail. The mechanism comprises an actuator pivotally attached to the hinge end of the cargo hatch 2, such as a hydraulic cylinder 6, the other end of which is secured. to the ship's hull structure 5, also articulated. An articulated arm 7 is also attached between the door 2 and the frame structure 5, one end of which is thus hinged to the hatch 25 2 and the other end to the frame structure 5. The articulated arm 7 allows vertical movement of the hinged end of the door 2 In the situation of Figure 2, the intermediate cover hatch 2 is in its operating position supported by the lower brackets 8. In this case, cargo 4 may have been loaded on the intermediate deck. Above this there is also a weather cover hatch, which is also in the closed position. Of course, the actual cargo space 1 can also be utilized.

In the situation of Figure 3, the weather cover hatch 3 is opened by its own actuator, which is not shown in the drawings. The cargo 4 can then be unloaded from the hatches 2 of the intermediate deck. In Fig. 4, the hydraulic cylinder 6 is actuated, whereby it is pivoted, vertically to the open position of the intermediate lid hatch 2. In the situation of Fig. 5, the upper brackets 9 of Akti may be provided, that is, for example manually or <112053 hydraulically pivoted or pulled into the bracket position. In the situation of the previous Figures 2 and 3, the upper brackets have been out of action to allow the door to move in and out of the lower brackets. As the upper brackets have been brought into their operating position, the intermediate cover hatch 2 is flipped down as it closes into the bracket 9 closest to the hinge side of the hatch 2, which then becomes so-called. the breaking point. The link arm 7 makes it possible to stop namely the two hinge-side edge of the rising upwards and finally arrive at a position which is shown in Figure 6. In the interim, therefore, the cover lid 2 resting on the supports 9 of the upper dependent. This is the so-called "hatch cover". a storage position where it takes up as little space as possible in the actual cargo space, but does not carry any cargo on it. In Figure 7, the weather cover door 3 is also turned to the closed position.

Thus, the actual swinging movements of the intermediate lid hatch are performed by a hydraulic cylinder 15 6 and changes in the height of the hatch 2 are achieved by means of the articulated arm 7 and the brackets 8, 9. This mechanism allows both the opening and closing of the intermediate cover door 2 and its lifting and lowering to different heights in the cargo space 1. The operation is thus based on a pivot mechanism implemented by means of two hinged points. In addition, in the levels above the lowest level, the brackets closest to the articulation-20 canines serve as fold points for the hatch 2. The brackets 8, 9 are typically located on the edges of the cargo area.

. ···. It will be apparent to one skilled in the art that the invention is not limited to the exemplary embodiments set forth above, but may be varied within the scope of the appended claims. Thus, if elevation positions are required between the indicated lower and I. / upper positions, brackets may be added to provide e.g. · · 'Position for very low loads and maximum load space at intermediate channel. · Below.

. ,,: 30 Corresponding hinge functions can also be implemented with more complex joint mechanisms with more hinge points. Further, corresponding geo-metric motion paths can be achieved using guide rails and slides.

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Claims (5)

A mechanism for connecting a cargo ship's hatch (2) to the hull (5) of the ship with a hinge, which mechanism besides the hinge between the cargo hatch (2) and hull (5) comprises at least one actuator mounted between the cargo hatch and the hull, such as a hydraulic cylinder (6), by means of which the loading door (2) can be rotated from a substantially vertically open position to a substantially horizontally closed position and vice versa, and for which the closed position is provided supporting means (8) for supporting the loading door on the underside, characterized in that the connection 10 of the cargo door (2) with the hull (5) of the ship with a hinge is constructed by means of a construction which allows for limited movement of the hinge end of the cargo door (2) in height, whereby the cargo door in the closed position of the door can be set at different operating heights. 2. A mechanism according to claim 1, characterized in that said structure consists of an articulated arm (7), one end of which is directed against said hull (5) and the opposite end of which is directed against the cargo door (2), and that the supporting means (8, 9) which carried the cargo door (2) in the closed position are arranged in at least two height planes. 3. A mechanism as claimed in claim 1 or 2, characterized in that at least the upper supporting members (9) can be connected to a functional position where they support the cargo cover (2) and correspondingly to a resting position where they enable rotation of the cargo cover t. down on the lower supports (8) or in the direction away from them. »* *; · '25 4. A mechanism according to claim 3, characterized in that the coupling of the upper: "support means" (9) between the functional position and the rest position is performed manually,: hydraulically or in a similar manner. 5. A mechanism according to any one of claims 1 to 4, characterized in that the supporting member (9) which is closest to the threaded end of the cargo door in each of the: * '': planes above the lowest carrier body plane forms a pivot point for the cargo door when '' '. the cargo door is rotated to the relevant piano or away from it.