JP2000043783A - Cargo shift preventive tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a cargo from being shifted by the rolling during the transport by providing a cargo shift preventive tool comprising a cargo securing member and a suspension member to perpendicularly hold the cargo securing member from a suspension rod in a hold. SOLUTION: This cargo shift preventive tool comprises a cargo securing member 1, a suspension rod 2 and a suspension member 3, and the cargo securing member 1 is 5 formed to be expanded/contracted by a screw feed mechanism. A right-handed thread and a left-handed thread are provided on an inner surface of both ends of a cylindrical body 11, and screw rods 13, 14 are screwed therein. When the cylindrical body 11 is turned in a condition where the rotation of both screw rods 13, 14 is stopped, both screw rods are simultaneously advanced/retracted to/from the cylindrical body to change the length of the cargo securing member 1. In addition, locking nuts 15, 16 are screwed in the screw rods, and the screws are prevented from being loosened by the oscillation during the transport by tightening the nuts between the cylindrical body 11 and the cargo securing member after the length of the cargo securing member 1 is set, and the cargo securing condition is not loosened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo movement preventing device for preventing a cargo from moving due to shaking during transportation and maintaining a space between the cargoes when a plurality of cargoes are arranged and transported side by side. . It is particularly suitable for use in securing cargo in a hold in transport by ship.

[0002]

2. Description of the Related Art In the transportation of goods, it is necessary to prevent the cargo from moving due to shaking during transportation.
Particularly, in the case of transport by ship, the hull is tilted by the waves, so it is necessary to fix heavy loads to withstand large forces. Ships of the same shape are very often transported in large quantities in ships, but except for the case of transporting containers by a dedicated ship, the work of fixing the cargo must be performed after loading. The most common method is to secure using a wire rope, but it requires considerable effort and may be difficult to use depending on the shape of the load.

[0003] When it is difficult to use wire ropes, it is the present situation that wood is used to secure the ropes by carpentry work. For example, when transporting a large number of concrete segments used in tunnels, the fixing work is performed by a carpenter who specializes in ship work after loading is completed, but it takes about 3 hours. In addition, it is natural that the work of removing the fixing material is necessary for loading and unloading. However, it takes two hours to clear the traces of the wood scattered in the hold, and the disposal cost of the waste material is increased. Furthermore, as in the case of PC (prestressed concrete) plates used for civil engineering and construction work, rebars protrude, making it difficult not only to secure with wire ropes, but also to make cargoes difficult to fix with wood.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a method for loading a plurality of loads in a hold to prevent the loads from moving due to shaking during the transportation. It is an object of the present invention to provide an instrument for performing the operation simply and reliably regardless of the form of the device.

[0005]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a cargo movement preventing device for maintaining a space between cargoes when placing and transporting a plurality of cargos side by side. A packing member capable of setting the length to the interval of the cargo by doing, a hanging bar having a length that can be placed over the upper surface of the cargo, and a hanging member that holds the packed member hanging from the hanging bar. It is a cargo movement preventing device characterized by the following. Here, the compaction member is a tubular body provided with right-hand and left-hand threads on the inner surfaces of both ends, a screw rod screwed into the right-hand screw and left-hand screw, respectively, and screwed into the respective screw rod. Or a screw rod provided with a right-handed screw and a left-handed screw at each end, a cylindrical body into which the right-handed screw and the left-handed screw are respectively screwed, and a right-handed screw of the screw bar. It is also characterized in that it comprises a non-rotating nut screwed into each of the left screws. Here, a plate member for contacting the cargo is connected to both ends of the compacting member.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The cargo movement preventing device of the present invention is used between loads placed side by side in transportation to maintain the space between the loads. FIG. 1 is a front view showing an example of the cargo movement preventing device of the present invention, and shows a partial cross section. The cargo movement prevention device of the present invention is roughly composed of a compaction member 1, a suspension rod 2, and a suspension member 3.

The packing member has a bar shape as a whole, and its length can be set to the distance between both loads by expanding and contracting. When using it, bring it between cargoes to increase its length, and secure it in a stretched state. In the example of FIG. 1, the compacting member 1 is configured to expand and contract by a screw feed mechanism. Reference numeral 11 denotes a cylindrical body, on both inner surfaces of which are provided a right-hand thread and a left-hand thread, respectively. That is, in this example, as shown in the cross-sectional view of the left half, it is manufactured by fitting the nut 12 to both ends of the tubular body 11 and connecting them. Further, screw rods 13 and 14 are screwed into both ends of the cylindrical body, respectively. Therefore, if the cylindrical body 11 is turned while the rotation of both screw rods 13 and 14 is stopped, both screw rods enter and exit the cylindrical body at the same time, and the length of the compacting member 1 changes. In addition, rotation preventing nuts 15 and 16 are screwed into the respective screw rods, and after setting the length of the compacting member, the screws are tightened with the cylindrical body 11 to prevent the screws from loosening due to vibration during transportation or the like. To prevent.

Further, as shown in FIG. 1, both ends of the compacting member,
That is, it is desirable to connect plate members 17 and 18 for contacting the load to one end of each screw rod. In other words, if the end of the threaded rod is brought into contact with the cargo as it is, the cargo may be damaged. In this example, wooden boards 19 and 20 are further attached to the surface of a steel board to protect the cargo. Naturally, a rubber plate or the like may be attached to this surface. A plurality of holes 21 are provided in the surface of the cylindrical body so as to penetrate the opposite surface of the circumference, and can be rotated by appropriately penetrating a handle bar (not shown) therethrough. As can be seen from the cross-sectional view of FIG. 1, the two screw rods 13 and 14 may be hollow for the purpose of weight reduction or the like, and may be cylindrical. In the present invention, since it is not essential for the function to be hollow,
It is expressed as a screw rod in a form to be compared with the cylindrical body 11.

A suspension rod 2, which is another component of the cargo movement preventing device of the present invention, is placed so as to straddle the upper surfaces of both cargoes in a form parallel to the compaction member 1. Therefore, the length needs to be equal to or longer than the interval between cargoes, but the shape is not particularly limited, and may be a round bar or a square cross section. In the example of FIG.
2 is provided to insert a hole in the upper surface of the cargo, if any, so that the hanging rod does not move freely. As in this example, it is desirable to provide a means for preventing the hanging bar from moving during transportation. For this reason, when there is a hole or recess on the upper surface of the cargo, the end is bent so as to hook it, or a projection is provided in the middle. And good. If there is a protrusion on the upper surface of the cargo, a hook or the like for hooking the protrusion may be provided on the hanging bar.

A suspension member 3, which is still another component of the cargo movement preventing device of the present invention, is for holding the compaction member 1 hanging from the suspension rod 2. At the stage of loading the load, the compacting member is stretched between the loads and is under a compressive force, so that it is not necessary to hold down the hanging member from the hanging rod as long as this state is maintained. However, if the load is slightly moved by being shaken during transportation, the compressing force may not work on the compacting member. At this time, in order to prevent the compacting member from dropping during loading, the compacting member is held in a state of being suspended from the suspending rod via the suspending member. Further, by suspending the compacting member in this manner, there is an advantage that the work of installing the compacting member at a predetermined position after loading and unloading becomes easy. That is, it is only necessary to extend the length and fix it while hanging it from the hanging bar without holding the compacting member manually, so that the worker can easily attach it alone.

In the example shown in FIG. 1, there are two suspension members 3, which support the vicinity of both ends of the cylindrical member 11 of the compacting member. The suspension member is formed of a band-shaped metal plate, but is held without being fixed so as not to restrict the rotation of the cylindrical body. The mounting position of the hanging member is not limited to the example shown in FIG. 1, and if there is no problem that the expansion and contraction range of the compacting member is slightly restricted, the two screw rods 1
It is also possible to attach to 3 and 14, respectively. The form of the hanging member is not particularly limited as long as the compacting member can be suspended and held in a state substantially parallel to the hanging bar. For example, the present invention is not limited to the belt-shaped one shown in FIG. Since the compacting member and the suspension rod are maintained in parallel, these two points are usually connected and suspended as described above.

2 and 3 show an application example of the cargo movement preventing device of the present invention. FIG. 2 shows a cross section of a hold, and FIG. 3 shows a partial cross section in a direction perpendicular to the cross section. ing.
In this example, the cargo 42 is a tunnel segment made of concrete and stacked in three stages. In the figure, reference numeral 41 denotes a side wall or a bottom surface of the hold. As seen in FIGS. 2 and 3, two cargo movement prevention tools 43 are provided for each load between the loads in each stage.
Dunnage 47 is provided between the first and second stages and between the second and third stages for slinging, and the intervals are maintained. A hanging member can be placed. Reference numeral 46 denotes a skid provided at the bottom of the hold. In this example, the hanging member of the cargo movement preventing tool 43 has both ends bent as shown in FIG. 1 and a concave portion (not shown) is provided on the upper surface of the cargo. The movement of the member is prevented.

[0013] The cargo movement preventing device of the present invention can be used not only between the loads as described above but also between the loads and the side walls of the hold in maintaining the interval between the loads. In FIG. 2, two examples are shown on the left and right of the method of using the cargo movement preventive device with the wall surface of the hold 41. Since it is necessary to leave an interval between the cargo and the side wall of the hold for slinging, in the example on the left side, the frame 48 is provided to maintain the interval. One of the cargo
The gap between the first stage and the second stage is maintained by the frame 48 with the side wall of the hold, but the third stage uses the cargo movement preventing device 44 of the present invention. For this reason, the frame body 48 can hold one end of the hanging rod of the cargo movement preventing device. In this way, the use of the frame allows the cargo movement prevention device of the present invention to be used for only a part of the number of cargo stages.

In the example shown on the right side of FIG. 2, the cargo movement preventing device 45 of the present invention is provided at each stage of the cargo. In this example, a joint (not shown) for hooking one end of the hanging rod to the hold on the side wall needs to be attached to the wall surface. If this is possible, the frame 4 previously shown on the left side should be attached.
8 is not required, which is preferable. In addition, since the cargo movement prevention device can expand and contract the length after loading the load,
This is preferable because the cargo can be more completely secured than when a frame is used.

The cargo movement preventing device of the present invention is not limited to the example shown in FIG. 1, and various forms of the hanging rod and the hanging member are as described above. As the compacting member, various types of expansion and contraction mechanisms can be considered in addition to the screw feed mechanism as shown in FIG. However, in the case of the present invention, it is sufficient to extend the length and fix it where it cannot easily move, so that a particularly large force is not required for expansion and contraction. Therefore, for example, a telescopic mechanism using power such as hydraulic pressure is unnecessary, and a screw feed mechanism is simple and optimal. There are various types of compacting members using a screw feed mechanism as shown in the following examples.

FIG. 4 is a front view of an example different from FIG. 1 of a compacting member using a screw feed mechanism, and shows a partial cross section. In this example, the positional relationship between the male screw and the female screw is opposite to that of FIG. 1, and a screw rod 31 provided with a right-hand screw and a left-hand screw at each end is provided at the center, and cylindrical rods are provided on both sides thereof. The bodies 32, 33 are screwed. Screw rod 31
Screwing detent nuts 34, 35 on both sides of
Both ends of the packing member, that is, the respective cylindrical bodies 32, 3
It is desirable that plate members 36 and 37 for contacting the cargo be connected to one end of the same as in the case of FIG. In order to rotate the screw bar to change the length of the compacting member, at least a part of the length of the screw bar 31, for example, as shown in FIG. A spanner may be hung on this and turned. Also, as shown in this figure, the screw rod 31 may be hollow, as in the case of FIG. The wood members 19 and 20 for protecting the cargo and the hanging member 3 showing a part thereof are the same as those shown in FIG. 1, but the length of the hanging members is the length of the cylindrical bodies 32 and 33. It is natural that the mounting is performed so as not to hinder the movement in the direction.

[0017]

By providing the cargo movement preventing device of the present invention between a load and a load or between a load and a side wall of a hold, the load can be quickly fixed by a simple operation. Since the length of the compacting member of the cargo movement preventing device can be adjusted, it is possible to cope with a change in the cargo interval each time, and it is versatile, and it is economical because it can be used repeatedly and does not generate waste. The cargo movement preventing device of the present invention has been developed to solve the problem caused by the problem in ship transportation, but it can be naturally used in other transportation means depending on the situation.

[Brief description of the drawings]

FIG. 1 is a front view showing a partial cross section of a cargo movement prevention device of the present invention.

FIG. 2 is a sectional view of a hold showing an application example of the cargo movement preventing device of the present invention.

FIG. 3 is a partial cross-sectional view in a direction perpendicular to FIG. 2;

FIG. 4 is a front view showing a partial cross section of an example different from FIG. 1 of the compacting member.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 Packing member 2 Suspension rod 3 Suspension member 11 Cylindrical body 12 Nut 13, 14 Screw rod 15, 16 Non-rotating nut 17, 18 Plate material 19, 20 Wood plate 21 Hole 22 Bent portion 31 Screw rod 32, 33 Tube Shaped body 34, 35 Non-rotating nut 36, 37 Plate material 41 Hold 42 Cargo 43, 44, 45 Cargo movement prevention tool 46 Skid 47 Dunnage 48 Frame

Claims (4)

[Claims] 1. A load movement preventing device for maintaining a space between loads when a plurality of loads are arranged and transported side by side, comprising a packing member capable of setting the length to the space between loads by expanding and contracting. And a hanging member having a length that can be placed so as to straddle the upper surface of the load and a hanging member that holds the compacting member hanging from the hanging bar. 2. The compacting member includes: a tubular body having right and left threads provided on inner surfaces at both ends; a threaded rod screwed into the right and left threads, respectively; and each of the threaded rods 2. The cargo movement preventing device according to claim 1, further comprising a detent nut screwed into the device. 3. The compacting member comprises: a threaded rod having a right-handed thread and a left-handed thread provided at both ends thereof; a tubular body into which the right-handed thread and the left-handed thread are respectively threaded; 2. The cargo movement preventing device according to claim 1, further comprising a detent nut screwed into the screw. 4. A plate member for contacting a load is connected to both ends of the compacting member.
4. The cargo movement preventive device according to any one of items 1 to 3.