JP5934474B2 - Pallet for drum transport - Google Patents

Description

  The present invention relates to a drum can pallet used when a drum can is loaded in a container or the like and transported.

  Drums containing special liquids such as raw materials for chemical factories are sometimes loaded in containers and transported. In such a case, for example, a work is performed in which a plurality of drum cans are placed on a general-purpose pallet and the pallet is transported into the container by a forklift.

  Patent Document 1 discloses that a guide that protrudes corresponding to a winding tightening portion (circular protrusion) on the bottom of the drum can is provided on the upper surface of the pallet on which the drum can is placed. According to this, since the winding part of the drum can is positioned on the pallet while being positioned on the guide, it is possible to prevent the drum can from shifting on the pallet. In addition, a pallet having such protrusions formed on both the upper surface and the lower surface is stacked between the first-stage drum can and the second-stage drum can, thereby stably holding the plurality of-stage drum cans. be able to.

JP-A-62-26353

  However, for example, since the inside of the container may be shaken during transportation, if the drum cans are simply stacked using the pallet of Patent Document 1, the drum cans cannot be stably held, causing rolling or collapse of cargo. It is also possible that the drums come into contact with each other. In particular, drums that contain special liquids or the like are required to have high quality, and thus the surface of the drums must be protected so as not to be damaged. Therefore, conventionally, a work has been performed in which the pallet and the drum can are bound with a PP band (polypropylene band) or the like so that the drum can not be displaced on the pallet, and the drum can is fixed so as not to move in the container. .

  Here, a conventional cargo handling operation of the drum can will be specifically described. First, a plurality of (for example, four) drums are placed on one general-purpose pallet, and a cushioning material such as a cardboard sheet is sandwiched between the drums. If there is a handle on the top of the drum, the handle and the pallet are tied with a PP band, and then the drums are tied with a PP band. Then, the pallet on which the drum can is placed is placed on a stretch film packaging machine, and the drum can and the pallet are wound around the stretch film several times. The drum can and the pallet integrated in this way are loaded into the container with a forklift.

  In order to prevent the drums loaded in the container from being lifted off the floor of the container due to pitching during transportation, place a support rod such as wood on the drum can and press the support rod downward, that is, against the drum can. Bind the support bar to the inner wall of the container with PP band. Furthermore, in order to prevent the drum can from being displaced due to rolling, a cushioning material such as a pallet is provided in the gap between the drum can or the pallet and the inner wall of the container.

  As described above, in the conventional cargo handling work, many materials such as cushioning materials such as cardboard sheets, PP bands, stretch films, etc. are used, and the work process is increased. It was. In addition, many of these materials cannot be reused, and since there is no choice but to dispose of them as waste, economic problems have arisen.

  It is an object of the present invention to provide a drum pallet for transporting a drum can that enables the work of handling a drum can to be carried out easily and in a short time, and further reduces the materials required for the load handling operation and enables returnable (recovery and reuse). And

To solve the above problems, the present invention is sandwiched a lower pallet square placing one or more drums, e Bei an upper pallet square that held between the one or more drums down pallets, the drum At least one of the holding surface of the lower pallet and the upper pallet is formed of a synthetic resin or rubber material, and the lower pallet and the upper pallet are respectively positioned at the same position in the longitudinal direction of each side surface of the pallet. A plurality of hooks through which strings or metal fittings for fixing the pallets to each other are passed are provided, and the lower pallet is provided with a leg portion into which a forklift claw can be inserted.

  If the drum cans are sandwiched between a pair of pallets in this way, the drum cans can be secured using a plurality of hooks provided on both pallets. Can be done automatically. In addition, when a plurality of drum cans are sandwiched between a pair of pallets, at least one end of each drum can is pressed against a holding surface made of a synthetic resin or rubber material. It is possible to suppress the contact between the drums. Furthermore, by arranging the both ends of the drum cans inside the pair of pallets so that the drum cans do not protrude from the pallets, contact with the drum cans held between other pallets can be prevented. For this reason, it is not necessary to provide a cushioning material or the like in the gap between the drums, and it is not necessary to cover the surface of the drum with a stretch film or the like, so that waste materials generated during work can be reduced.

  When the drum can is secured with a pair of pallets, for example, a lashing belt that can be used with a band adjusted to a desired length, a turn buckle, a wire, or the like can be used. Since all of these can be collected and reused, waste materials can be further reduced or eliminated by using them. Furthermore, since the pallet itself can be used any number of times, returnable can be realized.

  Further, since the lower pallet is provided with a leg portion into which a forklift claw can be inserted, the drum can can be conveyed to the container by the forklift. The drums loaded in the container can be tied to the inner wall of the container with a string etc. by using the hook part of the upper pallet, so there is no need to use a support bar or cushioning material etc. Can be efficiently performed.

The upper pallet has frame members attached to the four corners of the outer frame, respectively, and this frame member has one opposing side of a rectangular ring formed of a bar material bent at a substantially right angle, It is preferable that the opposing sides are fixed to two side surfaces that intersect at four corners, respectively, and that one opposing side protrudes upward and downward of the upper pallet.

  By providing such a frame material, when the drum cans are stacked and transported in a plurality of stages in the container, for example, the lower pallet for sandwiching the second stage drum can is placed on the upper pallet for sandwiching the first stage drum can. In the case of overlapping, at least the leg portion of the lower pallet fits inside the frame of the upper pallet and is positioned. For this reason, a shift | offset | difference of an upper pallet and a lower pallet can be prevented, and stability when stacked can be improved. In addition, after use, the pallets are stored or collected in the order of the lower pallet, the upper pallet, and the lower pallet, but each pallet is stacked while being supported by the frame, It will not be displaced and will not collapse even if it is transported by a forklift or the like.

  According to the present invention, it is possible to carry out the work of handling the drum can easily and in a short time, and further, it is possible to reduce the materials required for the work of carrying and to return (recover and reuse).

It is a perspective view which shows the external appearance of the pallet for drum can conveyance which concerns on this invention. It is the top view which looked at the lower pallet of FIG. 1 from the downward direction. It is the top view which looked at the upper pallet of FIG. 1 from upper direction. It is a perspective view which shows the state at the time of storage or collection | recovery of the pallet of FIG. It is a side view which shows the state stored or collect | recovered in the state which piled up the pallet for drum can conveyance concerning this invention. FIG. 3 is a side view showing a state where a drum can is sandwiched between PP bands in the drum can transporting pallet according to the present invention.

  Hereinafter, embodiments of a pallet for conveying a drum can to which the present invention is applied will be described in detail with reference to the drawings. In this embodiment, the drum can means a cylindrical container (for example, 18 liters or more and 400 liters or less) made of metal as a main material, and includes a so-called pail can with a handle. There is no particular limitation on the above.

  The pallet of this embodiment is composed of a lower pallet and an upper pallet, and the lower pallet and the upper pallet are always used as a set. The upper pallet is placed on the drum can installed on the lower pallet, and the lower pallet and the upper pallet are fastened to each other, whereby the drum can is held between the pair of pallets. In addition, although the pallet of this embodiment can hold | maintain from 1 to 4 drum cans, the following description demonstrates the example holding 4 drums.

  As shown in FIG. 1, the pallet 1 according to this embodiment includes a lower pallet 3 and an upper pallet 5. The lower pallet 3 is formed such that two outer frames 7 and 9 formed in a square having the same outer shape are stacked with the leg portion 11 interposed therebetween. The leg portion 11 includes leg portions 11a that connect the four corners of the outer frames 7 and 9 to each other, and leg portions 11b and 11c that are provided in order from the four corners along the sides of the outer frames 7 and 9, respectively. The opposite ends of the leg 11a and the leg 11b are connected to both ends of a cylindrical pipe 13 extending in a direction (horizontal direction) orthogonal to these planes.

  The outer frame 7 has an end surface opposite to the end surface to which the leg portion 11 is connected as a grounding surface. As shown in FIG. 2, the outer frame 9 is reinforced by two reinforcing members 15a and 15b intersecting with a cross. Both ends of the two reinforcing members 15a and 15b are connected to opposite sides of the outer frame 9, respectively. The end surfaces of the reinforcing members 15a and 15b are formed so as to be flush with at least the end surface opposite to the end surface to which the leg portion 11 of the outer frame 9 is connected.

  A rubber sheet material 17 formed in a square having the same size as the outer frame 9 is attached to the end surface opposite to the end surface to which the leg portion 11 of the outer frame 9 is connected and the end surfaces of the reinforcing members 15a and 15b. It is attached. The sheet material 17 is not limited to rubber, and can be formed of synthetic resin or the like. Note that a reinforcing plate may be provided between the outer frame 9 and the end faces of the reinforcing member 15 and the sheet member 17.

  Three hooks 19a, 19b, and 19c, which are formed by bending a bar in a substantially U shape, are provided on the four side surfaces forming the outer frame 9 so as to protrude from the side surfaces. The hooks 19 are provided at equal intervals along the longitudinal direction of each side surface of the outer frame 9.

  On the other hand, as shown in FIG. 3, the upper pallet 5 includes an outer frame 23 reinforced by five reinforcing members 21 and a sheet material 25. The outer frame 23 is formed in a square whose outer shape is the same size as the outer frames 7 and 9 of the lower pallet 3. The reinforcing member 21 is composed of four reinforcing members 21a and one reinforcing member 21b, and both ends of each reinforcing member 21a are connected to adjacent sides of the outer frame 23 to form a rhombus, and the rhombus diagonal line A reinforcing member 21b is provided across the top vertices. The end surfaces of the five reinforcing members 21 are formed to be flush with at least one end surface of the outer frame 23.

  A square rubber sheet material 25 having the same size as the lower pallet 3 is attached to one end surface of the outer frame 23, that is, an end surface where the end surfaces of the outer frame 23 and the reinforcing material 21 are flush with each other. It has been. The sheet material 25 is not limited to rubber like the sheet material 17, and can be formed of a synthetic resin or the like. In addition, the sheet material 25 is not limited to a square, and the sheet material 25 formed in substantially the same shape as the end surfaces of the reinforcing members 21a and 21b (surfaces facing the drums) is attached to the end surfaces of the reinforcing members 21a and 21b. Also good.

  Three hooks 27a, 27b, 27c each having the same structure as the lower pallet 3 are provided on the four side surfaces of the outer frame 23 so as to protrude from the side surfaces. The hooks 27 are provided at equal intervals along the longitudinal direction of each side surface of the outer frame 23.

  At the four corners of the outer frame 23, frame members 29 each formed in a ring shape are attached. The frame member 29 is formed in a rectangular shape by connecting both ends of the rod member, and a pair of opposing sides is bent at a substantially right angle, and the other pair of opposing sides intersect at the four corners of the outer frame 23, respectively. It is attached to the outer frame 23 in a state where it abuts on one side surface. The frame member 29 is attached such that a pair of sides that contact the side surface of the outer frame 23 extend vertically beyond both end surfaces of the outer frame 23.

  A turnbuckle 31 is connected to each frame member 29 formed in this way. The turnbuckle 31 has a structure in which an eyebolt 35 and a folding bolt 37 folded in a U shape are screwed to a body portion 33 which is a female screw, and the eyebolt 35 is connected to the frame member 29.

  Next, an example of a method of using the pallet thus configured will be described with reference to the drawings. In the following example, an example in which four drum cans are conveyed by one pallet 1 will be described, but all four drum cans are assumed to be the same size.

  First, the lower pallet 3 is installed at a predetermined position. At this time, the lower pallet 3 has the sheet material 17 facing upward. Next, as shown in FIG. 1, four drum cans 39 are placed on the sheet material 17 of the installed lower pallet 3. Here, the drum can 39 is installed so as not to protrude from the sheet material 17, that is, the lower pallet 3. By doing so, for example, contact with a drum can held on another pallet 1 can be prevented in the container. The drums 39 installed on the sheet material 17 are arranged with a predetermined gap therebetween.

  Next, the upper pallet 5 with the sheet material 25 facing downward is placed on the four drum cans 39 installed on the lower pallet 3 (FIG. 1). Subsequently, the tips of the folding bolts 37 of the four turnbuckles 31 suspended from the frame material 29 of the upper pallet 5 are respectively hooked on the pipes 13 provided at the four corners of the lower pallet 3. And the trunk | drum 35 of the four turnbuckles 31 is rotated alternately. As a result, the four drum cans 39 are equally pressed from both the lower pallet 3 and the upper pallet 5, so that the drum cans 39 are held between the two pallets. At this time, both the bottom plate (base plate) and the top plate (canopy) of the drum can 39 are pressed against the sheet materials 17 and 25, respectively, so that the lateral displacement is suppressed by strong friction with the sheet materials 17 and 25.

  Next, the pallet 1 holding the drum can 39 is conveyed to the container. Here, since the space which becomes a fork pocket is formed in the lower pallet 3 between the outer frame 7 and the outer frame 9, two forks (claws) of the forklift are respectively connected to the leg portion 11b and the leg portion 11c. The drum can 39 can be lifted together with the pallet 1. The pallet 1 thus transported into the container is lowered from the forklift and installed at a predetermined position in the container.

  Subsequently, another pallet 1 holding the drum can 39 is stacked on the pallet 1 already installed in the container by a forklift. At this time, the lower pallet 3 and the leg 11a of another pallet 1 are guided and stacked inside the four frame members 29 provided at the four corners of the upper pallet 5 of the pallet 1 that has already been installed. Therefore, the pallets 1 are not stacked in a shifted state, and the pallets 1 can be prevented from being displaced due to shaking or vibration during transportation.

  Next, by connecting the hooks 27 or frame members 29 of the pallet 1 stacked in a container in a plurality of stages (usually two stages) and the floor hooks in the container with a lashing band or a wire, a plurality of stages are provided. Fix the pallet 1 in the container.

  The drums 39 thus transported by the container are unloaded again from the container and the pallet 1 one by one with a forklift at the destination, and are carried to a predetermined position. Then, the drum 35 is unloaded from the lower pallet 3 after the barrel 35 of the turnbuckle 31 of the pallet 1 is rotated and loosened and the upper pallet 5 is removed.

  The pallet 1 on which the drums 39 are unloaded, that is, the pallet 1 after use, is stored in a predetermined place or collected in a container or the like until the next use. Here, since the lower pallet 3 and the upper pallet 5 are always used as a set, the pallet 1 is stored or collected as a set even during storage or collection. As shown in FIG. 4, the pallet 1 is stored or collected in a state where the sheet material 17 of the lower pallet 3 and the sheet material 25 of the upper pallet 5 are overlapped with each other. Further, the turnbuckle 31 can be compactly accommodated as a whole by hooking the folding bolt 37 on the hook 27 of the upper pallet 5. The folding bolt 37 can be stored or collected in a state where the lower pallet 3 and the upper pallet 5 are connected to each other by hooking on the hook 19 of the lower pallet 3 instead of the hook 27.

  Furthermore, it is possible to store or collect the pallets 1 stacked in this manner in a stacked state. FIG. 5 shows an example of a state in which a plurality of pallets 1 are stacked. In FIG. 5, the outer pallet 7, the legs 11 b, and the pipes 13 are omitted from the lower pallet 3.

  According to this, since the pallet 1 further stacked thereon is supported from below by the frame material 29 provided on the upper pallet 5, it is possible to prevent a shift between the adjacent pallets 1, and when stacking Can improve the stability. Therefore, for example, even if the piles of pallets 1 stacked in a high stack are transported by a forklift or the like, they do not collapse, and it is possible to prevent a shift when transporting by a container or the like.

  In the above-described embodiment, the example in which the lower pallet 3 and the upper pallet 5 are fastened with the turnbuckle 31 has been described. However, the means for fastening between the pallets is not limited to the metal fitting such as the turnbuckle 31; A string-like member such as a band or a lashing belt can also be used.

  FIG. 6 shows an example in which the lower pallet 3 and the upper pallet 5 holding the drum can 39 are fastened by the lashing belt 41. In FIG. 6, the outer pallet 7, the leg portion 11 b, and the pipe 13 are omitted from the lower pallet 3. Thus, when using a string-like member, work efficiency is improved by using the hook 19 of the lower pallet 3 and the hook 27 of the upper pallet 5 instead of using the frame material 29 and the pipe 13 as in the turnbuckle 31. be able to. For example, in FIG. 6, the side surfaces of the lower pallet 3 and the upper pallet 5 are tightened through the lashing belt 41 to the hooks 19b and 27b, respectively. The drum can 39 can be held. Since the lashing belt 41 has a load clamping machine, the lashing belt 41 can be fixed to an adjusted length, and workability can be improved as compared with the use of a PP band. Further, the PP band is a waste material because it is difficult to recycle, but the lashing belt 41 can be used repeatedly, so that a returnable can be realized. Further, the hook 19 and the hook 27 are not limited to a string-like member, and a known metal fitting such as a turnbuckle 31 can be attached and tightened. Since the hooks 19 and 27, the pipe 13, and the frame member 29 all function as hooks for passing strings, metal fittings, etc., which one is used when holding the drum can 39 depends on workability and the like. Can be set as appropriate.

  In the present embodiment, hooks 19a, 19b, 19c are provided on the respective side surfaces of the lower pallet 3, and hooks 27a, 27b, 27c are provided on the respective side surfaces of the upper pallet 5, so that the hooks 19a, 27a, 19b The hook 27b, the hook 19c, and the hook 27c are arranged at the same position with respect to the longitudinal direction of each side surface of the pallet. For this reason, in the operation | work which fastens the lower pallet 3 and the upper pallet 5, each hook can be identified easily and the function as a guide at the time of working using a lashing belt etc. can be provided. Therefore, the operator can tighten the lashing belt or the PP band through the hook without making a mistake in the position of the hook, thereby improving workability. In addition, the installation position and the number of installation of each hook can be appropriately set in consideration of workability.

  In the pallet 1 of the present embodiment, when the lower pallet 3 and the upper pallet 5 are secured with a lashing belt or the like, a plurality of hooks 19 and 27 provided respectively on the lower pallet 3 and the upper pallet 5 can be used as appropriate. Therefore, even a drum can without a handle can be easily secured to the pallet, and a drum can with a handle can be easily secured to the pallet without being restricted by the position of the handle.

  According to the present embodiment, since both ends of each drum can 39 are pressed against the sheet materials 17 and 25 having a large frictional resistance, the displacement of the drum can 39 can be suppressed, and the occurrence of scratches due to contact between the drum cans 39 can be prevented. Can be prevented. For this reason, it is not necessary to provide a cushioning material or the like in the gap between the drums 39, and it is not necessary to wind the drums 39 or the pallet with a stretch film or the like. Therefore, the number of cargo handling operations can be reduced, and the operation time can be greatly shortened. In addition to eliminating the need for cushioning materials, stretch films, etc., if both pallets are tightened with the lashing belt 41, the turnbuckle 31 or the like, waste materials in cargo handling operations can be eliminated, thus improving economy. be able to.

  Moreover, in this embodiment, since the frame material 29 is provided in the four corners of the upper pallet 5, when the pallets 1 holding the drum cans 39 are stacked and transported, the pallets 1 can be prevented from shifting, and stability is improved. Can be increased. For this reason, it becomes possible to transport a drum can in a safer state. In addition, the used pallet 1 is stacked and stored or collected while the lower pallet 3 and the upper pallet 5 are alternately stacked and supported by the frame material 29. For this reason, even if the stacked pallets 1 are transported by a forklift or the like, they do not collapse, and it is possible to prevent a shift when transported by a container or the like.

  In the present embodiment, the lower pallet 3 and the upper pallet 5 are each made of a metal frame material and a reinforcing material to ensure a desired strength, and are designed in consideration of a balance with weight reduction. ing. Here, the arrangement of the outer frame and the reinforcing material of each pallet can be determined in consideration of the size and arrangement of the drum can when the size of the drum can is determined in advance. For example, in the lower pallet 3, as shown in FIG. 2, it is possible to design the outer periphery of the four drum cans 37 so as to hang on the outer frame 9 and the reinforcing members 15 a and 15 b of the lower pallet 3. preferable.

  Further, the pallet 1 of the present embodiment is designed so that it can hold one to four drum cans 37. However, when installing any number of drum cans 37, the center of gravity of the position of the drum can 37 is the lower pallet 3. It is decided to be at the approximate center position. Here, for example, instead of the sheet material 17 of the lower pallet 3, a thin reinforcing iron plate material having the same shape is provided, and a drum can described in Japanese Patent Laid-Open No. 62-26353 is provided on the plate material. 37 positioning protrusions or protrusions may be provided. In this way, as in the case where the sheet material 17 is used, the drum 37 can be prevented from shifting and the strength of the lower pallet 3 can be increased.

  2 and 3, the installation positions when the number of installed drum cans 37 is 4, 3, and 2 are represented by X, Y, and Z, respectively. By arranging the drum can 37 in this way, it is possible to suppress the tilt of the drum can 37 when the drum can 37 is conveyed by a forklift or a container.

  As mentioned above, although embodiment of this invention has been explained in full detail with drawing, the said embodiment is only an illustration of this invention and this invention is not limited only to the structure of the said embodiment. Needless to say, changes in design and the like within the scope of the present invention are included in the present invention.

  For example, in the present embodiment, since the structure in which the eyebolt 35 of the turnbuckle 31 is connected to the frame material 29 of the upper pallet 5 can be expected to prevent the turnbuckle 31 from being lost at the site, Once the turnbuckle 31 is attached, it cannot be easily removed. For this reason, the turnbuckle 31 is attached to the frame material 29 as needed. This is because the drum can 39 can be held between the pallets without any trouble by using other fastening means such as a lashing belt without the turnbuckle 31.

  Moreover, although the lower pallet 3 of this embodiment demonstrated the example comprised so that the two outer frames 7 and 9 were piled up on both sides of the leg part 11, the drum can 39 is lightweight and has a strong problem, for example. In the case where there is no outer frame 7, the outer frame 7 can be omitted. Moreover, when it is clear that the turnbuckle 31 is not used, the pipe 13 and the leg 11b can be omitted. As described above, the lower pallet 3 and the upper pallet 5 can be reduced in weight by omitting unnecessary portions and simplifying the structure in consideration of ease of use in the field in addition to strength and weight reduction.

DESCRIPTION OF SYMBOLS 1 Pallet 3 Lower pallet 5 Upper pallet 7, 9, 23 Outer frame 11 Leg part 13 Pipe 15, 21 Reinforcement material 17, 25 Sheet material 19, 27 Hook 29 Frame material 31 Turnbuckle 39 Drum can 41 Lashing belt

Claims (2)

  A square lower pallet on which one or more drum cans are placed; and a square upper pallet that sandwiches the one or more drum cans between the lower pallet, the lower pallet holding the drum cans and the upper pallet At least one of the holding surfaces of the pallet is formed of a synthetic resin or rubber material, and the lower pallet and the upper pallet are respectively connected to each other at the same position in the longitudinal direction of each side surface of the pallet. A pallet for transporting a drum can provided with a plurality of hook portions through which a string or metal fitting to be fixed is passed, and a leg portion into which a forklift claw can be inserted in the lower pallet. In the pallet for drum transport according to claim 1,
Wherein the pallet has an outer frame, respectively in the four corners mounted frame member of the frame member is one of the opposing sides bending are substantially perpendicular rectangular ring formed by bars, other It is fixed to the two side surfaces opposite sides intersect at the four corners, respectively, and wherein one of the opposing sides palette for drum conveyor, characterized in that mounted to protrude above and below the upper pallet.

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