GB2070523A

GB2070523A - A cargo securing system for a marine cargo vessel

Info

Publication number: GB2070523A
Application number: GB8006727A
Authority: GB
Original assignee: PICKLES ENG Ltd DENNIS
Current assignee: PICKLES ENG Ltd DENNIS
Priority date: 1980-02-28
Filing date: 1980-02-28
Publication date: 1981-09-09
Also published as: GB2070523B

Abstract

A cargo securing system for a marine cargo vessel (2) comprises beams (8) which are adapted to be secured to a metal deck (4) of the vessel and which have retainer means (18) for retaining a timber deck covering in position on the metal deck, a chamber (14), and a plurality of apertures (16) providing access to the chamber. Tie members (not shown) which secure the cargo on the timber deck are fastened to anchor members (22) which can be selectively positioned in one of the apertures (16). Each anchor member (22) has a first part (24) for passing through one of the apertures in one of the beams and for being retained in the beam, and a second part (28) for projecting out of the beam and for receiving a tie member. <IMAGE>

Description

SPECIFICATION A cargo securing system for a marine cargo vessel This invention relates to a cargo securing system for a marine cargo vessel. This invention also relates to a marine cargo vessel when provided with the cargo securing system.

Known marine cargo vessels have a metal deck which is provided with a timber deck covering on which cargo such for example as containers and skips are tied in position. The cargo vessels ride low in the water and their decks are often awash.

The metal decks would become too slippery in such conditions and the cargo would tend to slide over the metal decks. The timber deck covering is employed to provide a deck surface which is less slippery than the metal deck. However, in the known cargo vessels, the cargo still tends to slip, even if it is lashed to crash barriers of the cargo vessel. The slipping cargo often results in injury to seamen and/or lost cargo.

It is an aim of the present invention to obviate or reduce the above mentioned difficulties by providing a cargo securing system for a marine cargo vessel.

Accordingly, the invention provides a cargo securing system for a marine cargo vessel, which securing system comprises beams which are adapted to be secured to a metal deck of the vessel, and an anchor member for fixing to the beams, each beam having retainer means for retaining a timber deck covering in position on the metal deck, a chamber, and a plurality of apertures providing access to the chamber, and each anchor member comprising a first part for passing through one of the apertures in one of the beams and for being retained in the beam, and a second part for projecting out of the beam and for receiving a tie member for tying cargo in position on the vessel.

Preferably, each beam has a platform portion and a pair of spaced apart legs, the platform portion and the pair of spaced apart legs being such that they define the chamber in the beam, and the platform portion being such that it extends transversely beyond the legs to form a pair of shoulders which constitute the retainer means for retaining the timber deck covering in positions on the metal deck.

The first part of each anchor member may be T-shaped whereby the first part of the anchor member can be inserted through an aperture in the beam and then rotated so that the first part of the anchor member cannot be pulled out of the beam.

The second part of each anchor member is preferably T-shaped. The cross piece of the T-shaped second part of the anchor member is preferably apertured for receiving a tie member. It is to be appreciated that other shapes for the second part of each anchor member may be employed. Thus, for example, the second part of each anchor member may be hook-shaped.

The beams will usually be metal beams and they may be adapted to be welded, riveted or bolted to the metal deck of the cargo vessel. The beams may be rolled metal beams.

The anchor members will usually be made of metal and they are advantageously made as steel forgings.

Various types of tie members may be employed in securing the cargo in position. Preferably the tie members are straps or webbing. Advantageously the tie members are provided with tensioning devices for tensioning the tie members. The tensioning devices may be ratchet operated and they may be devices which are already known and in use for securing cargo in position on road transport vehicles.

Rs indicated above, the present invention also provides a marine cargo vessel when provided with the cargo securing system.

An embodiment of the invention will now be described solely by way of example and with reference to the accompanying drawings in which: Figure 1 is a cross-section through part of a cargo securing system in accordance with the invention; Figure 2 shows part of the cargo securing system in position on a marine cargo vessel; and Figure 3 shows cargo secured in position on the deck of the cargo vessel shown in Figure 2.

Referring to the drawings, a cargo vessel 2 has a steel deck 4 which is provided with a timber deck covering 6.

A plurality of beams 8 are provided as shown in Figure 2 between planks of timber constituting the timber deck covering 6. The beams 8 have a flat platform portion 10 and a pair of legs 1 2. The platform portion 10 and the legs 12 define a chamber 14 in the beam 8. The beams 8 are provided with a plurality of apertures or slots 1 6 in the platform portion 10. The platform portion 10 also extends transversely beyond the legs 1 2 to form a pair of shoulders 1 8. As shown most clearly in Figure 1, these shoulders 1 8 form retainer means for engaging with chamfered edges 20 of the timber deck covering 6 for holding the timber deck covering 6 in position on the steel deck 4. The beams 8 are themselves held in position by being welded, riveted or boited to the steel deck 4.The beams 8 can also be fixed to other parts of the cargo vessel 2, for example to crash barriers or crash barrier stanchions, in order to provide further or alternative anchoring points.

In Figure 1, there is shown an anchor member 22 secured in a slot 1 6 in the beam 8. The anchor member 22 has a first part 24 which is T-shaped as shown and which locates in the chamber 14.

More specifically, the cross piece 26 of the first part24 is aligned with the slot 1 6 and is passed through the slot 1 6. The cross piece 26 is then rotated through 900 to the position shown in Figure 1 so that is cannot be pulled out of the chamber 1 14. The anchor member 22 also comprises a second part 28 which projects out of the beam 8 as shown. The second part 28 is T-shaped as shown and the cross piece 30 of the second part 28 is provided with a closed aperture 32 for receiving a fixing strap 34 for retaining cargo in position as shown in Figure 3. The cargo can be a container 36 and a skip 38 as shown in Figure 3. The shank portion 39 of the first part 24 is square in cross section in order to prevent it rotating in the slot 1 6.

When it is desired to retain a particular piece of cargo in position, several of the anchor members 22 can be inserted in any desired slots 16 and then a fixing strap 34 can be passed over the cargo and tightened up, for example by ratchettype tensioner devices 40. If one of the slots 16 should become damaged, there will invariably be an adjacent slot which is not damaged and which is still suitably positioned for the piece of cargo to be tied or lashed in position on the cargo vessel 2.

It will thus be seen that the cargo securing system of the present invention is simple to construct and use whilst being effective.

It is to be appreciated that the embodiment of the invention described above has been given by way of example only and that modifications may be effected. Thus, for example, the shape of the anchor member 22 can be varied together with the shape of the slots 1 6. Any type of cargo can be carried including various pieces of drilling or offshore construction equipment.

Claims

1. A cargo securing system for a marine cargo vessel, which securing system comprises beams which are adapted to be secured to a metal deck of the vessel, and an anchor member for fixing to the beams, each beam having retainer means for retaining a timber deck covering in position on the metal deck, a chamber, and a plurality of apertures providing access to the chamber, and each anchor member comprising a first part for passing through one of the apertures in one of the beams and for being retained in the beam, and a second part for projecting out of the beam and for receiving a tie member for tying cargo in position on the vessel.

2. A cargo securing system according to claim 1 in which each beam has a platform portion and a pair of spaced apart legs, the platform portion and the pair of spaced apart legs, being such that they define the chamber in the beam, and the platform portion being such that it extends transversely beyond the legs to form a pair of shoulders which constitute the retainer means for retaining the timber deck covering in position on the metal deck.

3. A cargo securing system according to claim 1 or claim 2 in which the first part of each anchor member is T-shaped whereby the first part of the anchor member can be inserted through an aperture in the beam and then rotated so that the first part of the anchor member cannot be pulled out of the beam.

4. A cargo securing system according to any one of the preceding claims in which the second part of each anchor member is T-shaped.

5. A cargo securing system according to claim 4 in which the cross piece of the T-shaped second part of the anchor member is apertured for receiving a tie member.

6. A cargo securing system according to any one of the preceding claims in which the beams are metal beams.

7. A cargo securing system according to any one of the preceding claims in which the anchor members are steel forgings.

8. A cargo securing system according to any one of the preceding claims and including tie members.

9. A cargo securing system according to claim 8 in which the tie members are straps or webbing.

10. A cargo securing system according to claim 8 or claim 9 in which the tie members are provided with tensioning devices for tensioning the tie members.

11. A cargo securing system according to claim 10 in which the tensioning devices are ratchet operated.

12. A cargo securing system substantially as herein described with reference to the accompanying drawings.