JP3932054B2 - Locking rod device for container ships - Google Patents

Description

TECHNICAL FIELD The present invention relates to a container ship. In the industry, container ships are known that have lateral anchoring bridges arranged on the upper deck. Locking bridges often include various types of locking devices and / or holding devices for holding adjacent containers stacked in layers on top of each other.
The first locking hole of the nearest prior art locking bridge is located in the walking surface of the walking path, from which the first locking rod extends upward, in the stacked adjacent container A container ship holding an upper container is known. This ship is further equipped with a second locking hole on the deck surface that is 3 to 4 meters lower, from which the second locking rod extends upward and the lower side of the second container upwards from the normal deck. Hold the container at a height. The lower container is fixed directly to the hatch cover on the deck. The anchoring rod is made of a tough iron rod and stretched as a large rig screw, reaching a total weight of 40-50 kg and a total length of about 4 m.
In the operation of fixing the stacked containers, the worker first locks all the containers underneath while standing on the deck with his arms raised when attaching the locking rod. Then, the worker must walk to the walking path of the locking bridge in order to continue the process of locking the container above it. This slows down the work process when loading and unloading containers. This adds to the cost and today it accounts for too much of the transportation. Note that a very large number of containers must be locked in, because the ship carries 5000-6000 containers, half of them on the deck This is because they are stacked.
Furthermore, the above-described container locking or fixing method is not optimal from the viewpoint of the specific force acting on the stacked containers. Holding the container with an oblique locking rod that extends from one height to another suppresses the deformation of the lowermost container caused by the uppermost container following the sway of the ship during voyage to the desired level. This is usually impossible and causes problems with the overall stability of the stacked containers.
Objective The objective of the present invention is stated in the first chapter, which enables container anchoring to be performed more quickly while allowing more stable and reliable stacking of containers, thereby improving container ship service. Is to provide a type of container ship.
Novelty of the present invention A feature of the container ship of the present invention is that the locking bridge has a second locking hole disposed substantially at the same height as the first locking hole. . The second locking rod extends in a substantially horizontal direction from the second locking hole to hold the container.
Advantages An advantage of the present invention is that all anchoring of one stacked container can be done on one walking surface. This can result in quick anchoring, because the operator can work efficiently from the same work surface, i.e. the walkway of the new anchoring bridge, and anchoring the stack of containers concerned. It is because it can finish.
Furthermore, the locking rod extending in a substantially horizontal direction greatly prevents the deformation of the container, for example, prevents the situation where the top of the container is deformed to a parallelogram that moves laterally with respect to the bottom.
In this sense, it is noted that the fact that the second locking rod is oriented substantially horizontally means that the container can carry a heavier weight than in the case of a conventional container ship. Furthermore, the locking rod can be cleared at the horizontal position to be used.
When locking a mode container of operation, the stack of containers is placed between two adjacent locking bridges. The lower surface of the container is placed directly on the hatch.
In this way, the operator can approach all the locking rods from the walking path of the locking bridge, and the locking holes of the locking rods are suitable for work, for example, 1 m above the walking surface. Arranged.
The first locking rod is fixed to the container arranged in the upper stage of the stack facing upward, and the second locking rod is placed in the container positioned in the lower stage in a substantially horizontal outward direction, preferably stacked when viewed from the hatch upward It is fixed to the second level of the container.
Finally, the containers are stacked and secured by tightening the locking rod rig screw.
The second locking rod is oriented almost horizontally, so that a very “user friendly” locking is ensured and the operator does not have to lift the locking rod so much, Medium containers can be stacked that are heavier than was possible with conventional locking bridges.
Advantageous Embodiment In an advantageous embodiment, the height of the locking hole is 2.59 m (8.5 ft) to 2.90 m (9.5 ft) upward from the surface supporting the stacked containers. They are placed apart.
In another advantageous embodiment, the walking surface of the walking path is lowered by 0.5 to 1.5 m with respect to the height of the locking hole. As a result, the worker can work in a standing posture, and when attaching the locking rod, it is not necessary to bend the body to grasp the locking rod, and injury is prevented.
Furthermore, the anchoring bridge that absorbs lateral forces from the horizontal anchoring rod acting on the bridge can be provided with diagonal struts. This force is noticeable when sailing in bad weather.
DESCRIPTION OF THE DRAWINGS Hereinafter, the present invention will be described in more detail with reference to the drawings.
FIG. 1 is a perspective view of a container ship according to the present invention.
FIG. 2 is a side view of one anchoring bridge of a container ship.
FIG. 3 is also an end view.
Detailed Description of the Preferred Embodiments A container ship 20 shown in FIG. The anchoring bridge 1 extends transversely to the hull and holds an intermediate container stack (not shown) placed on the deck hatch cover.
As can be seen in FIGS. 2 and 3, the locking bridge 1 is constructed as a girder structure and is supported by a longitudinal girder 2 that stands upright from the deck of the container ship 20. In the embodiment of the present invention, the oblique struts are inclined between the beams 2 and absorb the lateral force acting on the anchoring bridge during the voyage.
Each locking bridge has a first locking hole 7 from which a first locking rod 9 extends upward to hold the upper container 8. Is the third height of the stacked container as viewed from above the hatch cover. According to the invention, the locking bridge further comprises a second locking hole 17 arranged at substantially the same height as the first locking hole 7, from which a second locking rod is provided. Reference numeral 10 denotes a container 8 that extends substantially horizontally in the horizontal direction and is underneath, and holds the second stage of the stacked containers as shown. The lower container is directly above the hatch. The locking rod is fixed to the bottom of the container and, in a certain way, extends diagonally in the lateral direction and absorbs lateral forces during voyage.
In the embodiment shown in FIGS. 2 and 3, all the locking holes 7, 17 are 2.59 m (8.5 ft) to 2.90 m (9.5 ft) above the height of the deck, ie It is arranged at a corresponding height between the lowest and highest height of a standard container. High adaptability is obtained especially when the locking holes are arranged at a height intermediate between the standard heights mentioned above, because the stacking of containers (at least the lowest container) is minimal If it has a height (8.5 ft), the horizontal locking rod extends slightly diagonally downwards and the stack of containers (at least the bottom container) has the maximum height (9.5 ft) This is because the horizontal locking rod extends slightly obliquely upward.
The locking rod has an upper, horizontal walking path 4. Along with this, the operator 5 can move in various ways and can operate the locking rods 9 and 10.
The walking height of the walking path 4 can be set lower than the height of the locking holes 7 and 17. In the illustrated embodiment, the walking height of the walking path 4 is as such and is about 1 m lower than the locking holes 7, 17. The walking path 4 further has a handrail 6 that delimits the upper boundary of the locking bridge 1.
In the illustrated embodiment, the handrail 6 is coupled to the lower girder structure 2 and has a particularly strong structure for receiving a load, and the locking holes 7 and 17 are directly fixed to the handrail 6. . Furthermore, the handrail 6 ensures the prevention of the operator from falling from the locking bridge.
The outer end portion 11 of the first locking rod engages with the concave portion 12 on the lower corner of the container 8 so that the container 8 is fixed.
FIG. 3 shows that the second locking rod 10 extends outward in the substantially horizontal direction and fixes the container 8 corresponding to the lower container at the second container height with respect to the hatch cover 18, The first locking rod 9 is arranged at the third container height with respect to the hatch cover 18 and clearly shows how the first locking rod 9 extends toward the container 8 corresponding to the upper container.
The container can carry a heavier thing because the 2nd locking rod 10 is extended in the substantially horizontal direction.
Further, the locking rods 9 and 10 extend obliquely upward and forward. As is apparent from FIG. 2, the locking rods 9 and 10 are fixed to a container 8 disposed on the side of the locking holes 7 and 17.
The locking rods 9, 10 have an outer end 11 that is adapted to engage the recess 12 of the container 8. Further, the locking rods 9 and 10 have inner end portions 13 that are engaged with the locking holes 7 and 17 so as to be axially movable, and the locking rods 9 and 10 are substantially parallel to the locking bridge 1. It can be rotated between the extended rest position and the locking position fixed at the upper container height and the lower container height.
The locking rod can comprise several detachable parts in a known manner, for example the intermediate part 14, hooks 15, 16 and rig screw 22, the length of which can be different for different containers It can be easily adapted to standard dimensions.
The rig screw 22 has a function of tightening the locking rod after mounting so that the container can be securely fixed.
As can be seen from FIGS. 2 and 3, the locking bridge 1 can further comprise a lower walking surface 21, which is used exclusively for maintenance and the like.
In the example shown in FIG. 1, six locking bridges are provided on the container ship. However, the number of anchoring bridges can vary depending on the length of the ship 20 and the dimensions of the container 8.
Also, the locking bridge can be variously constructed within the scope of the present invention. The locking bridge does not necessarily have a girder structure. For example, the oblique support column 3 can be replaced with a complete plate, and the handrail can have another shape.

Claims (5)

A first locking hole (7) from which the first locking rod (9) extends upward to hold the upper container (8); A container ship (20) having at least one lateral locking bridge (1) for the locking bridge (1) to operate the locking rod (9) at least one substantially horizontal walking path (4)
The locking bridge (1) includes a second locking hole (17) disposed at the same height as the first locking hole (7), and the first locking hole (7) and the second locking hole (7). The securing hole (17) is arranged at a height close to the boundary between the upper container (8) and the lower container (8), and the second securing rod (10) is the second securing hole. A container ship characterized in that the container (8) is held by extending in a horizontal direction so as to be separated from (17) . The container according to claim 1, wherein the height of the locking hole is set to 2.59 m (8.5 ft) to 2.90 m (9.5 ft) above the surface supporting the container. ship. 3. A container ship according to claim 1, characterized in that the surface supporting the stacking of containers is formed by a hatch cover (18) on the deck of the hull. Container ship according to any one of claims 1 to 3, characterized in that the locking bridge (1) has diagonal struts (3). The said second locking rod (10) holds the container (8) under the container (8) held by the first locking rod (9). The listed container ship.

Images