EP0153770B1 - Hatch covers for ships - Google Patents

Description

The present invention relates to improved hatch covers for boats, especially for interior boats.

It is known that traditional wooden hatch covers have long been replaced by metal hatch covers, arranged uninterrupted from one side to the other of the boat. These hatch covers made of aluminum are bent in the middle upwards and rest on either side on a hatch overcoat of the gunwale, for example as known from document DE-A-1 812 392.

These known hatch covers are provided with water drainage gutters of constant height over their entire length and between these gutters are provided transverse reinforcements, all this so that in the hatch coamings, at the level of the gutters, cutouts must be provided to ensure the support of said reinforcements on the hatch cover, which is absolutely necessary to achieve a good seal.

A construction of this kind, however, has the drawback of requiring additional operations to make the cutouts, which, moreover, causes a significant weakening of the hatch coamings.

The present invention relates to hatch covers for boats which systematically exclude the aforementioned drawbacks and other drawbacks of conventional hatch covers. To this end, the invention relates to an improved hatch panel for boats of the metallic type, generally made of aluminum and of a shape bent upwards in the middle, so as to rest on both sides on hatch coamings. , and whose height gradually decreases towards its two ends from the middle, characterized in that it is constituted by a profile comprising inclined gutters and oriented perpendicular to said ends and whose height gradually decreases from the middle of the panel and in that the height of said hatch cover, at the level where it rests on a coaming, is equal to its thickness of material increased by the thickness of the transverse reinforcement, relative to the gutters, by which the panel rests on the coamings.

• la figure 1 représente une coupe transversale schématique d'un panneau d'écoutille selon l'invention, reposant de part et d'autre sur les surbaux d'écoutille d'un bateau;
• la figure 2 représente à plus grande échelle une vue selon la flèche F2 de la figure 1; et
• la figure 3 représente une coupe du dispositif selon la figure 2, pratiquée suivant la ligne III-III de cette dernière.

To better highlight the advantages of the solution according to the invention, a preferred embodiment of the invention is described below by way of example, without the least restrictive intention, with reference to the accompanying drawings, where

• Figure 1 shows a schematic cross section of a hatch panel according to the invention, resting on either side on the hatch coamings of a boat;
• Figure 2 shows on a larger scale a view along arrow F2 of Figure 1; and
• 3 shows a section of the device according to Figure 2, taken along line III-III thereof.

The figures of the accompanying drawings show an improved hatch cover according to the invention, which rests on either side on the hatch coamings 2-3, adjacent to the gunwales 4-5 of the boat.

As shown in the drawings, these hatch covers are designed so that their height gradually increases from the ends to the middle, so that the minimum height is approximately equal to the thickness of the transverse reinforcement 6 provided at of each hatch cover, transverse reinforcement by which the hatch cover 1 rests on the hatch coamings by means of a seal 7.

It follows that the greatest resistance of the hatch cover 1 is obtained in the middle, that is to say at the level where the bending moment is maximum.

It also follows that the coamings 2 and 3 must not be provided with cutouts, thanks to the fact that the height of the gutters 8, provided at the ends of the hatch cover 1, corresponds to the thickness of the latter increased by that of reinforcement 6. This solution has the double advantage of a cost price significantly lower than that of the traditional system, on the one hand, and greater mechanical strength of coamings 2 and 3, on the other hand.

In addition, the stacking and laying of the hatch panels improved according to the invention are very simple and the stacking height is limited to the minimum height of the hatch panels due to the fact that the gutters of the panels slide. one inside the other.

Claims (2)

1. Perfected hatchway panel for boats, of metallic type, generally produced in aluminium and shaped curved upward in the middle, in such a manner as to rest on all sides on the hatchway coamings, and of which the height decreases gradually toward its two extremities from the middle, characterised in that it consists of a profile including inclined gutters (8) directed perpendicular to the aforementioned extremities and of which the height decreases gradually from the middle of the panel (1) and in that the height of the aforementioned hatchway panel (1), at the level where it rests on a coaming (2, 3), is equal to its material thickness increased by the thickness of the transverse reinforcement (6), in relation to the gutters (8, 9) by which the panel (1) rests on the coamings (2, 3).

2. Perfected hatchway panel according to claim 1, characterised in that the lower wall of the aforementioned reinforcement (6) is, at the level where the hatchway panel (1) rests on a coaming (2, 3), aligned on the lower edge of the gutters (8).

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