JP4142843B2 - Carrier pallet with container displacement prevention structure - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a carrier pallet for loading a container that accommodates a metal material such as a metal coil, a metal wire coil, and a metal cut plate.
[0002]
[Prior art]
Conventionally, for example, when a coil is shipped by shipping, as shown in FIG. 7A, after the coil 1 is packed (packed with a wooden stand here), it is loaded on the carrier pallet 2 in a single layer by, for example, a crane. As shown in FIG. 7B, the pallet truck 3 enters the lower part of the carrier pallet 2, and the carrier pallet is lifted by the lift function of the pallet truck main body and is ready for conveyance. When shipping to the quay, the coils 1 on the carrier pallet 2 are transported to the quay and stacked on the ship one by one with a crane. When the coils are unloaded from the ship, they can be loaded one by one on the cart or truck. It was done.
[0003]
In this way, when adopting the method of loading the coils 1 one by one and unloading them one by one, it is necessary to arrange several personnel for onshore and inboard work, and the labor burden is large, which is a safety problem. There was also. In addition, the work efficiency is poor, and it takes a long time to load and unload the coil, which increases the burden of berthing charges.
[0004]
In order to solve such a problem, for example, Japanese Patent Laid-Open No. 53-53487 proposes a container device for truck transportation that can accommodate a plurality of coiled objects and enables multi-stage stacking. This container device can stack a plurality of coiled objects placed side by side on a truck, can prevent the collapse of the coiled objects in the container, and when the coiled objects are stacked in multiple stages , It is possible to prevent the collapse of the load between the upper and lower containers.
[0005]
However, this container device has a structure for stacking containers in a multi-stage, but in the case of truck transportation, there is a limit to the load capacity, and there is a problem that it is not possible to meet the demand for multiple loads. In addition, when stacking containers in multiple stages, the burden of aligning and engaging the upper and lower containers is large, and there is a problem in terms of work efficiency and safety.
[0006]
[Problems to be solved by the invention]
The present invention provides a structure that can easily prevent the displacement of a container on a carrier pallet when a plurality of containers containing a plurality of metal materials are loaded on a pallet cart via a carrier pallet to carry multiple loads. A carrier pallet having the above is provided.
[0007]
[Means for Solving the Problems]
In the invention of (1) of the present invention, two inclined guide surfaces extending downward are formed at the ends of both bottom beams that abut against the corner columns of the container, and the lower end surfaces of the corner columns are positioned above the lower surfaces of both bottom beams. a carrier pallet for stacking containers with corner structure with, at multiple sites where the lower end surface of the container corner posts of the bed upper surface is positioned, the position of the upper end face is slightly lower position than the corner posts lower end surface of the container A carrier pallet having a container misalignment prevention structure characterized in that a square retaining material having a size capable of being engaged is fixed between the two inclined guide surfaces.
[0008]
Further, the invention of (2) is the invention of (1), wherein the container has a stackable structure in which a corner metal fitting having a long hole at the top of the corner post and a fixing pin projecting from the lower end surface are provided. And a carrier pallet having a container misalignment prevention structure characterized in that a fixing pin insertion space is formed in the center of the square retaining material.
[0009]
In the invention of (3), in the invention of (1) or (2), the retaining material has an upper edge portion parallel to two inclined guide surfaces formed at the bottom beam end at the lower end portion of the corner column of the container. It is the carrier pallet which has the position shift prevention structure of the container characterized by being formed with the square material or square frame material which has.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
The present invention is mainly applied to a case in which a container containing a plurality of metal materials such as a metal coil, a metal wire coil, and a metal cut plate is loaded on a carrier pallet, and this carrier pallet is placed on a pallet truck for transportation. In particular, the main feature is to provide a container retaining structure on the carrier pallet so that a plurality of containers loaded on the carrier pallet do not shift in position.
[0011]
The reason why the pallet cart is selected in the present invention is that it is possible to load more than in the case of a truck, and it is possible to ensure sufficient safety even when stacked with less shaking.
In addition, the container for storing the metal material is loaded on the pallet cart via the carrier pallet in order to shorten the loading time by shortening the total transport stroke of the coil and the container by the crane and the lifter.
[0012]
The container to be used in the present invention basically has two inclined guide surfaces extending downward at the ends of both bottom beams that abut against the corner columns, and the lower end surfaces of the corner columns are above the lower surfaces of both bottom beams. A container with a corner structure positioned at the top, but when stacking, it has a stackable structure with a corner bracket having a long hole at the top of the corner post and a fixed pin protruding from the lower end surface Can also be targeted.
In addition, in order to simplify the structure and facilitate loading / unloading of metal materials into / from the container, a container having a simple frame structure in which a space capable of moving the metal material accommodated at the side and upper portion is formed. It is effective to do.
[0013]
When the containers are stacked and transported by a crane, a known corner footing having a long hole can be used as a corner fitting on the upper corner column, and a known twist lock can be used as a fixing pin. The twist lock may be either an automatic lock, a lockable one, or a lever-operated known twist lock.
The corner footing (corner bracket) can also be used as a corner footing for locking the twist lock when the container is transported by a crane having an automatic lifting device with a twist lock.
[0014]
Since the carrier pallet of the present invention has a structure that does not cause misalignment when placed on a pallet carriage, it prevents misalignment between the carrier pallet and the container. Specifically, the retaining material is fixed to a portion where the lower end of the corner pillar of the container is located when a plurality of containers are arranged on the upper surface of the carrier pallet according to the container to be loaded. The retaining material can have a simple structure by being positioned below the lower end surface of the corner column of the container so that the retaining material does not receive a load directly from the lower end surface of the corner column of the container.
[0015]
This retaining material is on the two inclined guide surfaces formed at the ends of the two bottom beams that hit the corner column of the container, and the upper edge contacts the inclined guide surface to prevent the container from being displaced. If considered in units of one container, it is possible to prevent displacement in any direction in the horizontal direction by arranging the containers so that they can be held from opposite sides.
Even if one is arranged on the opposite side, each has a sufficient retaining effect, and it is not necessary to arrange at the positions of the lower end surfaces of all corner posts. For example, when three or more containers are placed in the length direction of the pallet, it is also considered that the retaining material for the middle container is omitted.
The retaining material can be selected in an efficient arrangement according to the size of the container, the number of loaded items, the arrangement, and the like.
[0016]
The retaining material has a thickness that does not easily deform when the container is retained, and a height of approximately 9 to 10 mm. The shape of the retaining material takes into account the guide characteristics of the two inclined guide surfaces at the corners of the container. Then, a square or square frame member having two upper edge portions parallel to the inclined guide surface and having an upper edge portion that can smoothly slide and guide the inclined guide surface to facilitate container alignment. Etc. are simple and more preferable.
[0017]
When stacking containers, a fixing pin or the like often protrudes from the lower end of the corner post. Therefore, when a square member is used, it is necessary to form an insertion space for the fixing pin at the center. When the container is stacked and transported by a crane, a known corner footing can be used as a corner bracket, and a known twist lock can be used as a fixing pin. The twist lock may be either an automatic lock, a lockable one, or a lever-operated known twist lock.
When a twist lock is used, the container can be engaged with an automatic suspension with a twist lock of a crane by making the engagement hole of the corner footing (corner metal fitting) long.
[0018]
The metal material is preferably carried into the container before the carrier pallet on which the container is placed is loaded on the pallet truck.
[0019]
【Example】
An embodiment of the carrier pallet of the present invention will be described with reference to FIGS.
1 to 3, reference numeral 2 denotes a carrier pallet, in which three containers 1 are placed side by side in the length direction on the upper surface of the loading platform 2a. The container 1 includes a bottom frame 4, four corner pillars 5, and a bottom plate 6 made of a steel plate disposed on the bottom frame 4, and a lower end surface of the corner pillar 5 is higher than a lower surface of the bottom frame 4. The two bottom beams 4a and 4b of the bottom frame 4 that face the corner pillar 5 at the corners are perpendicular to the lower side of the end faces of the bottom beams 4a and 4b (lower area from the lower end face of the corner pillar 5). A guide inclined surface 4t having an inclination angle α of about 30 degrees with respect to the line is formed.
[0020]
On the loading platform 2 a of the carrier pallet 2, three containers 1 are placed side by side in the length direction, and a plurality of retaining materials 7 for preventing positional displacement of these containers 1 are arranged and fixed by welding w.
As shown in FIG. 4, the retaining material 7 is a square frame material and has a space 7o . More specifically, the positional relationship with the lower end of the corner pillar 5 of the container 1 is shown in FIG. As described above, between the two inclined guide surfaces 4t that extend downward and are formed on the end surfaces of the bottom beams 4a and 4b that strike the lower portion of the corner column 5 of the container 1 placed on the loading platform 2a of the carrier pallet 2, the corner column 5 The upper end surface is positioned below the lower end surface of the corner column 5 of the container 1 below the portion where the lower end surface of the container 1 is located, and the upper surface of the retaining material 7 and the lower end surface of the corner column 5 When the container 1 is lifted by a crane or the like, there is no problem at all.
[0021]
The retaining material 7 is fixed so as to be positioned below the position of the corner pillar 5 of the container 1 placed on the loading platform 2a according to the size and the number of the containers 1 to be placed. In the case of mounting on the second loading platform 2a, the two inclined guide surfaces 4t formed on the end surfaces of the bottom beams 4a and 4b at the lower end of the corner post 5 are guided by the upper edge portion of the retaining material 7 and 2 The retaining material 7 is positioned between the two inclined guide surfaces 4t, and the two inclined guide surfaces 4t are locked to the two upper edge portions of the retaining material 4t, thereby retaining the container and moving the container 1 in the horizontal direction. Can be prevented.
[0022]
In this embodiment, the retaining material 7 is disposed on the opposite sides of the three containers 1, and the positional deviation of the container 1 can be prevented in any direction in the horizontal direction.
[0023]
The container 1 of this embodiment can be stacked up and down. As shown in FIG. 6, a fixing pin 8 protrudes from the lower end surface of the corner post 5 of the container 1 and an engagement hole is formed in the upper portion. In the case where the container 1 is stacked, the guide inclined surface 4t is guided by the inner edge of the corner metal 10 at the upper part of the pillar 3a of the lower container, so that the corners of the upper container are attached. Alignment and engagement of the fixing pin 9 at the lower end of the pillar 5 and the long hole 9 of the corner metal fitting 10 at the upper part of the corner pillar 5 of the lower container can be facilitated, and load collapse between the upper and lower containers can be prevented. .
[0024]
The corner bracket 10 can also function as a corner footing that locks the twist lock when transported by a crane equipped with a twist lock that can be automatically locked and unlocked. May be a long hole.
Further, when the container 1 is transported by a crane or the like in a state where the containers 1 are stacked up and down, it is necessary to connect the upper and lower containers. However, when the containers 1 are connected, the fixing pin 9 is twist-locked to engage the corner bracket 10. What is necessary is just to enable it to latch to the joint hole (long hole) 9. FIG.
[0025]
In addition, the container applied by this invention is not limited to said Example. For example, the present invention is not limited to the one that accommodates the coil, and can be applied even to one that accommodates a packing board or the like. In addition, for example, for the frame structure (bottom frame, pillar), carrier bed structure, carrier pallet structure, crane (including hanging tool) structure, pallet truck structure, etc. that constitute the container, It is selected according to the metal material conditions (material, size) to be accommodated, packing conditions, the number of accommodations, etc., and there are changes within the scope of the claims of the present invention.
[0026]
【The invention's effect】
The present invention provides a structure that can easily prevent the displacement of a container on a carrier pallet when a plurality of containers containing a plurality of metal materials are loaded on a pallet cart via a carrier pallet to carry multiple loads. The retaining material positioned on the two inclined guide surfaces formed on the lower part of the corner column of the container is fixed to the carrier pallet loading platform, and the two inclined guide surfaces are retained, so that the horizontal direction of the container Can be prevented easily, and there is no safety problem, and stable container transportation is possible.
[Brief description of the drawings]
FIG. 1 is an explanatory front view showing an embodiment of a carrier pallet according to the present invention.
2 is an explanatory side view of FIG. 1; FIG.
FIG. 3 is an explanatory plan view of FIG. 1;
FIG. 4 is a three-dimensional explanatory view showing a shape example of a retaining material used in the present invention.
5 is a three-dimensional enlarged explanatory view showing a positional relationship between a container corner pillar lower part and a retaining material in part A of FIG. 2;
FIG. 6 is an explanatory side view showing an example of a stacked structure in a corner pillar of a container.
7A and 7B are explanatory views showing an example of a coil transportation method using a conventional carrier pallet and a pallet carriage, in which FIG. 7A is a side explanatory view showing a carrier pallet loaded with coils, and FIG. Side surface explanatory drawing which shows the pallet truck which mounted the loaded carrier pallet.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Coil 2 Carrier pallet 2a Loading platform 3 Pallet trolley 4 Container bottom frame 4a, 4b Bottom beam 4t Inclined guide surface 5 Corner pillar 6 Bottom plate 7 Retaining material 8 Fixing pin 9 Long hole 10 Corner bracket

Claims (3)

Two inclined guide surfaces that extend downward are formed at the ends of both bottom beams that abut against the corner pillars of the container, and a container having a corner structure in which the lower end surfaces of the corner pillars are located above the bottom surfaces of both bottom beams is loaded. a carrier palette, at multiple sites where the lower end surface of the container corner posts of the bed upper surface is positioned, the position of the upper end face is located slightly lower position than the corner posts lower end surface of the container engaging between said two inclined guide surfaces A carrier pallet having a structure for preventing the displacement of a container, characterized in that a retaining material of a size that can be combined is fixed. The container has a corner metal fitting with a long hole at the top of the corner post and a stackable structure with a fixed pin protruding from the lower end surface, and a fixed pin insertion space is formed in the center of the retaining material The carrier pallet having a structure for preventing displacement of a container according to claim 1, wherein the carrier pallet is a pallet. The retaining material is formed of a square member or a square frame member having an upper edge portion parallel to two inclined guide surfaces formed at the bottom beam end at the lower end portion of the corner column of the container. A carrier pallet having the container displacement prevention structure according to claim 2.

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