JP6424378B2 - Equipment to support multiple containers loaded and transported on the deck of a cargo ship - Google Patents

Description

  The subject of the present invention is an installation for supporting a plurality of containers loaded and transported on the deck of a cargo ship, which installation is provided on and in a plurality of cargo compartments of the cargo ship And a lashing bridge disposed in a direction transverse to the cargo ship and fixed to a cross member provided between the cargo compartment and the cargo compartment. The containers loaded and transported on the hatch cover are fixed to the lashing bridge by the lashing bar. The hatch cover is disposed between the lashing bridge and the lashing bridge so that it can be lifted from the predetermined position and lowered back to the predetermined position.

  For a single cargo ship, multiple containers form a large number of matrices in the cargo room under the hatch cover and on the deck above the hatch cover, and the containers are stacked in layers on top of the containers Containers are transported as they are loaded. A guide rail is laid in the cargo compartment, and the container is fixed by the guide rail during the voyage. The deck has a removable hatch cover that closes the lower hold. The container mounted on the deck is loaded and transported on the hatch cover. For the containers, the transversely arranged supporting structure on the deck, so-called lashing bridge, removes the hatch cover and lowers it with a crane in relation to loading and unloading of cargo from and to the ship. It must be mounted at a distance that allows them to be returned to the storage position.

  After the container is loaded on the ship, at least a portion of the container above the hatch cover is secured at its end to the lashing bridge by the lashing bar and the turnbuckle. Each lashing bar is secured at one end to one corner of the container and at the other end to a turnbuckle, which is attached to the lashing bridge. By turning this turnbuckle, the fixation by the lashing bar can be tightened.

  When the ship is tilted in the sea swell, longitudinal, transverse and vertical forces on the ship and the forces exerted by the lashing bar act on the lashing bridge.

  The lashing bridge known in the art is, in its size, the support structure of the lashing bridge provided on the cargo bay and the member between the cargo bays in the width of the member under the lashing bridge. It is relatively narrow (in other words, the support structure of the lashing bridge is short in the longitudinal direction of the ship). Such a situation arises because of the space reserved for the hatch cover in conventional structures. That is, the hatch cover is mounted and supported on the same member.

  Known lashing bridge installations are, for example, presented in the following patent documents. KR 20070115383, EP 0815004.

  Due to the narrow width of the lashing bridge in the initial solution of this problem, the support structure of the lashing bridge has become heavy in order to obtain sufficient strength. Furthermore, the vibrations of the hull produced by the operation of the engine may cause strength problems and vibration problems in the conventional lashing bridge support structure.

KR20070115383 EP 0815004

  The object of the present invention is to provide a better facility for supporting a plurality of containers loaded and transported on the deck of a cargo ship better than the previous ones. The arrangement according to the invention is characterized in that the ratio of the maximum width of the support structure of the lashing bridge arranged in the cross member to the width of the cross member is at least 0.8 at one or more points of the lashing bridge. .

  In a preferred embodiment of the installation according to the invention, the ratio of the maximum width of the support structure of the lashing bridge arranged on the cross member to the width of the cross member is at least 1 at one or more points of the lashing bridge. It features.

Another preferred embodiment of the installation according to the invention is characterized in that a plurality of recesses correspond to the one or more points of the support structure of the lashing bridge in the hatch cover, such that the lashing bridge does not exclude the hatch cover. It is characterized in that it is provided at a position.

Yet another preferred embodiment of the installation according to the invention is characterized in that the hatch cover comprises a support bracket extending beyond the cross member.

  By using the wider support structure according to the invention, the lashing bridge can be made lighter than before. At the same time, the harmful tendency of the lashing bridge to vibrate can be suppressed. This structure can be manufactured inexpensively, and with the structure according to the invention it is possible to make the lashing bridge higher than in the prior art.

  In the following, the invention will be described in more detail with the aid of several preferred embodiments, with reference to the attached drawings.

Fig. 2 shows a prior art lashing bridge, a hatch cover and a stack of containers connected by two lashing bars. Fig. 2 shows a prior art lashing bridge and one of the stacks of containers loaded on the hatch cover. Fig. 1 shows a prior art lashing bridge and a plurality of containers supported thereon, viewed from the cross direction of the ship. Fig. 2 shows a lashing bridge according to the invention and a plurality of containers supported thereon, viewed from the cross direction of the ship. Fig. 6 shows a very simplified anisometric view of the recess provided in the hatch cover and the support structure of the lashing bridge extending into the recess.

  1 to 3 show the prior art, so these figures will not be described in detail in this specification. The drawings are presented to more easily understand the differences between the prior art and the present invention. FIG. 1 thus shows a part of the lashing bridge 1 and several of the plurality of containers 5 are fixed to and supported by the lashing bridge by a plurality of lashing bars 6. Containers are stacked on the hatch cover 4. Some containers are transported into the cargo compartment below the hatch cover. The height of the lashing bridge varies. Typically, the lashing bridge extends from the height of the open deck of the ship to the height of two, three or four containers. When the ship navigates the sea, the stacked containers exert a large force on the lashing bar 3 fixed to the container 2 and further to the lashing bridge 1. Such forces are transmitted to the hull (to the cross member 2) via the lashing bridge structure.

  In FIG. 2, the lashing bridge 1 extends from one side of the ship to the other side, that is, the end of the lashing bridge is a longitudinally extending member of the ship or the side of the ship. It can be seen that it is placed on the frame structure. The lashing bridge is supported on the cross member 2 between the cargo compartment and the cargo compartment. The present invention is limited to a portion of the lashing bridge between the cargo bay and the cargo bay and in the area between the hatch cover and the hatch cover.

  FIG. 3 shows the lashing bridge 1 viewed from the transverse direction of the ship. It can be seen in FIG. 3 that the maximum width of the lashing bridge is clearly narrower than the cross member 2 between the cargo compartment 3 and the cargo compartment 3.

  FIG. 4 shows the solution to the problem according to the invention. In FIG. 4, the width L of the lashing bridge is larger than that of the prior art. It is particularly advantageous to transmit the longitudinal force of the ship to the cross member 2 that the support structure of the lashing bridge is as wide as possible. The letter B is marked on the width of the cross member which is between the cargo compartment 3 and the cargo compartment 3 and on which the lashing bridge is mounted. The invention is characterized in that L / B is at least 0.8. Also possible is an embodiment of the type L / B ≧ 1 in that the support structure of the lashing bridge is the same as or larger than the width B of the cross member. In this case, it is obvious that the hatch cover can not be installed in a predetermined position, since no surface portion is properly left on the cross member 2 to properly carry the prior art hatch cover.

  Since the width of the support structure of the lashing bridge is increased, the plurality of recesses 7 corresponding to the hatch cover are formed at the locations where the plurality of support structures of the lashing bridge are provided. The support structure of the lashing bridge, which is arranged at the position of the plurality of recesses in the hatch cover, can also simultaneously function as a guide post when lifting the hatch cover with a crane. In addition, these support structures can also function as horizontal limiters for the hatch cover. That is, the support structure maintains the hatch cover in the correct position on the hatch coming, even as the ship travels and leans.

It is also possible to shorten the length of the hatch cover, in which case the hatch cover must, for example, be equipped with a support bracket (not shown) extending beyond the cross member 2.

  It will be clear to the person skilled in the art that the present invention is not limited to the embodiments described above, but may be varied within the scope of the claims given below. Thus, for example, in addition to plate-like or box-like structures, tubular steel bars and / or rods can also be used in the support structure of the lashing bridge. Likewise, in addition to the structure according to the invention, it is also possible to use narrower support structures in the same lashing bridge. The lashing bridge comprises at least one of the elements according to the invention.

  In the present specification, characteristic elements that may be described together with other characteristic elements can be used separately from each other, if necessary.

Claims (3)

  Equipment for supporting a plurality of containers (5) loaded and transported on the deck of a cargo ship, the equipment being provided on and above a plurality of cargo compartments (3) of the cargo ship A plurality of hatch covers (4) for loading and transporting the containers (5), the facility also being disposed in a direction transverse to the cargo ship and between the cargo compartment (3) and the cargo compartments The lashing bridge (1) fixed to the provided cross member (2), the container (5) is fixed to the lashing bridge (1) by the lashing bar (6), and the hatch cover (4) is The width (2) of the cross member (2) in the installation arranged between the lashing bridge (1) and the lashing bridge (1) so that it can be lifted from the position and lowered back to the position Against B) , Facilities ratio of the maximum width (L) of the support structure of the lashing bridge (1) which is disposed in the transverse member, characterized in that at least 0.8 in one or more locations of the lashing bridge.   The ratio of the maximum width (L) of the support structure of the lashing bridge (1) arranged in the cross member to the width (B) of the cross member (2) is at least 1 at one or more points of the lashing bridge The installation according to claim 1, characterized in that In the hatch cover (4), a plurality of recesses (7) are fitted in the support structure of the lashing bridge (1), and the support structure of the lashing bridge (1) in the hatch cover (4) The equipment according to claim 1 or 2, characterized in that it is provided at a position corresponding to the one or more parts of the body.

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