JP2017077922A - Pallet and load transport method using the pallet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pallet capable of facilitating work for transferring a cargo.SOLUTION: Along one side 1c of a top surface 1b on which a cargo is loaded of a pallet 1 is provided a fixed groove 4 which fixes by friction force an end part corresponding to one side of a sheet pallet 3 when inserted in one direction and opens the end part when pulled in the opposite direction. One end of the sheet pallet is fixed to the fixed groove of the pallet, another sheet pallet carried in loading a cargo is placed on the pallet, then the another sheet pallet carried in is pulled out while unloading the cargo on the sheet pallet, and the carried-in cargo is transferred onto the pallet fixed with the sheet pallet. Insertion of the end part of the sheet pallet in one direction causes the part to be fixed to the surface on which a cargo is loaded of the pallet to suppress the sheet pallet from shifting, and allows the fixing state to be easily released by pulling the part in the opposite direction, which can facilitate work for transferring the cargo.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pallet used for logistics transportation and a method for transporting a load using the pallet.

  Pallets are used for efficient cargo handling during logistics transportation. Work efficiency can be improved by handling the cargo loaded on the pallet with a cargo handling machine such as a forklift or handlift. There are various types of pallets such as wooden, plastic, metal, and paper. For example, the sheet pallet described in Patent Document 1 uses a thermoplastic resin sheet as a base material. The sheet pallet is light in weight and occupies a very small volume. Therefore, the sheet pallet is advantageous in terms of ease of transportation and collection after use, compared to other pallets. For this reason, the movement which develops for a transportation use is activated.

JP-A-2005-231738

  By the way, in recent years, there has been a movement to prevent the outflow of pallets and sheet pallets to the outside, and there is an example in which loads carried by other company's sheet pallets are replaced on their own sheet pallets at relay sites and warehouses. It is expected to increase. At this time, since the sheet pallet alone is difficult to match with the existing storage system, it is necessary to perform a replacement work combined with the pallet. That is, the load loaded on the sheet pallet of another company is stored on the pallet on its own sheet pallet, and the pallet is removed at the time of shipment, and the load is transported on the own sheet pallet.

  However, the normal pallet top is flat and slippery, and the sheet pallet placed on the pallet easily moves during the replacement work. For this reason, a skilled operator or an assistant who directs the work to a person other than the operator is required for unloading and replacing the sheet pallet of another company that has loaded the load on the pallet. Therefore, there is a problem that work efficiency is also lowered.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a pallet capable of facilitating the load transfer operation.
Another object of the present invention is to provide a method for transporting a load using a pallet, which can facilitate the work of changing the load and improve the work efficiency.

The pallet of the present invention is fixed when the end corresponding to one side of the sheet pallet is inserted in one direction along at least one side of the loading surface of the load and is pulled in the opposite direction. A fixing means for opening is provided.
In addition, the method for transporting a load using the pallet of the present invention includes a step of loading and loading a load on the first sheet pallet, and an end corresponding to one side of the sheet pallet along at least one side of the load loading surface. Fixing the second sheet pallet to a pallet provided with fixing means that fixes the end when the part is inserted in one direction and opens when the part is pulled in the opposite direction; and the second A first sheet pallet on which the loaded load is loaded is placed on a pallet on which the sheet pallet is fixed, the first sheet pallet is pulled out while the load is lowered onto the second sheet pallet, and the load is loaded. And a step of changing.

According to the present invention, by inserting an end corresponding to one side of the sheet pallet in one direction, the sheet pallet can be prevented from shifting by being fixed to the load loading surface of the pallet. In this state, the fixed state can be released by pulling the sheet pallet during loading in the reverse direction while lowering the load on the sheet pallet.
In addition, the load is loaded on the first sheet pallet and loaded, and the end corresponding to one side of the second sheet pallet is fixed to the pallet fixing means, and the second sheet pallet is fixed on the pallet. The first sheet pallet loaded with the loaded load is arranged, and the load can be replaced by pulling out the first sheet pallet in the reverse direction while lowering the load onto the second sheet pallet. As a result, the work of changing the load can be facilitated, the work efficiency can be improved, and smooth logistics can be realized.

It is a perspective view which shows the pallet which concerns on the 1st Embodiment of this invention. FIG. 2 is an enlarged side view of a fixing groove in FIG. 1. It is a schematic diagram for demonstrating the transportation method of the load using the pallet which concerns on the 1st Embodiment of this invention. It is a perspective view which shows the pallet which concerns on the 2nd Embodiment of this invention. It is a perspective view which shows the pallet which concerns on the 3rd Embodiment of this invention, and sectional drawing of a movable sheet reception mechanism. It is a perspective view which shows the pallet which concerns on the 4th Embodiment of this invention. It is a perspective view which shows the pallet which concerns on the 5th Embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
[First Embodiment]
FIG. 1 shows a pallet according to the first embodiment of the present invention, and FIG. 2 shows an enlarged side surface of a fixing groove formed on the top surface (loading surface) of the pallet. Here, a plastic pallet 1 is taken as an example, and insertion ports 2a, 2b, 2c, 2d,... For inserting fork lifts and hand lift claws are formed on each side of a thin rectangular parallelepiped main body 1a. Has been.

  The top surface 1b on which the cargo (load) of the pallet 1 is loaded is a flat surface, and a fixing groove 4 is provided along one side 1c of the top surface 1b. The fixing groove 4 is, for example, an inclined bottomed slit formed at the time of injection molding of a plastic pallet (pallet) 1 and serves as a fixing means for the sheet pallet 3 (shown by a broken line). When the end corresponding to one side 3a of the sheet pallet 3 is inserted in one direction (arrow A direction), the fixing groove 4 fixes the end with frictional force, and the sheet pallet 3 is pulled in the reverse direction. Sometimes it is configured to open.

  The sheet pallet 3 includes a square or rectangular sheet-like portion 3b on which a load is loaded, and a tab portion 3c that extends integrally from one side of the sheet-like portion 3b and is gripped by a push-pull attachment. As the base sheet of the sheet pallet 3, a sheet body of an arbitrary material and structure such as a sheet obtained by extrusion molding of a resin, a sheet having a network structure, a film, a woven fabric, a nonwoven fabric, or craft paper may be used. it can. Moreover, these sheet bodies can be used alone, or can be combined by appropriately laminating as required.

  As shown in FIG. 2, the fixing groove 4 includes an insertion port portion 4a into which an end portion of the sheet pallet 3 is inserted, and a first inclined wall portion that guides the end portion of the sheet pallet 3 from the insertion port portion 4a to the inside. 4b and the 2nd inclined wall part 4c arrange | positioned so that this width may become narrow as it goes to the back from the insertion port part 4a, facing this 1st inclined wall part 4b. The end portion of the sheet pallet 3 is sandwiched between the first inclined wall portion 4b and the second inclined wall portion 4c and fixed by a frictional force, and is released when pulled in the opposite direction.

  For example, the depth ΔD of the fixing groove 4 is 3 to 5 cm, the width ΔT1 of the insertion opening 4a is about 2.5 mm, and the width ΔT2 of the bottom 4d is about 0.5 mm. The distance ΔL from the top surface 1b of the pallet 1 to the bottom 4d of the fixed groove 4 is about 1 cm. Since the thickness of the general sheet pallet 3 is in the range of 0.7 mm to 1.8 mm, when the end of the sheet pallet 3 is pushed into the fixed groove 4 in the direction of the arrow A, the first inclination from the insertion port 4a. It is led inside along the wall 4b. And it fixes by the frictional force in the predetermined position where the clearance gap (space | interval) with the 2nd inclination wall part 4c became narrower than the thickness of the sheet pallet 3. FIG. On the other hand, when the sheet pallet 3 is pulled in the direction opposite to the arrow A, the fixed state is released relatively easily, and the sheet pallet 3 can be easily pulled out.

  Next, a method for transporting a load using the pallet 1 shown in FIGS. 1 and 2 will be described with reference to FIG. From the production area, the cargo 10 is loaded on a first sheet pallet (other company's sheet pallet) 11 and shipped (ST1). The cargo 10 is carried into a relay site or warehouse, and the cargo 10 is transferred from the first sheet pallet 11 to the second sheet pallet (own sheet pallet) 3 and placed on the pallet 1 for storage (ST2). ).

  This loading operation of the cargo 10 is performed in a state where the end of the second sheet pallet 3 is inserted and fixed in the fixing groove 4 of the top surface 1b of the pallet 1 as shown in FIG. In this operation, a cargo handling machine such as a forklift or a handlift is moved to the insertion ports 2c and 2d, the first sheet pallet 11 loaded with the cargo 10 is placed on the pallet 1, and the cargo 10 is placed on the second sheet. The first sheet pallet 11 is pulled out while being lowered onto the pallet 3. At this time, if the cargo 10 is lowered more than half on the second sheet pallet 3, it does not move any more, so the first sheet pallet 11 is preferably pulled out. In this way, the cargo 10 can be transferred onto the pallet 1 via the second sheet pallet 3.

Thereafter, forklifts and handlift claws are inserted into the insertion ports 2c and 2d, and are stacked and stored in the warehouse using the pallet 1 (or the pallet 1 without being stored in the warehouse after the cargo 10 is transferred). And the cargo 10 may be loaded on the second sheet pallet 3 and transported).
The first sheet pallet 11 used for transportation to the relay site or warehouse is collectively returned to the production area.
When the customer requests transportation of the cargo 10, the pallet 1 is removed and the cargo 10 is shipped in a state of being loaded on the second sheet pallet 3. After the cargo 10 is transported, the second sheet pallet 3 is collectively returned to the relay site or warehouse (ST3).

  According to the above configuration and method, by inserting an end corresponding to one side of the sheet pallet 3 in one direction, the sheet pallet 3 can be prevented from shifting by being fixed to the top surface 1 b of the pallet 1. In this state, the fixed state can be released by pulling the sheet pallet 11 in the reverse direction while lowering the cargo 10 on the sheet pallet 3, so that the loading operation of the cargo 10 can be facilitated.

  Further, an end portion corresponding to one side of the second sheet pallet 3 is fixed to the fixing groove 4 of the pallet 1, and the first sheet pallet 11 loaded with the cargo 10 is loaded on the second sheet pallet 3. The cargo 10 can be transferred onto the second sheet pallet 3 by pulling out the first sheet pallet 11 in the reverse direction while lowering the cargo onto the second sheet pallet 3. As a result, the work of changing the cargo 10 can be facilitated, the work efficiency can be improved, and smooth logistics can be realized. Further, a skilled operator and an assistant who instructs the work are necessary, and the work can be standardized.

[Second Embodiment]
FIG. 4 is a perspective view of a pallet according to the second embodiment of the present invention. In the first embodiment described above, the slit-shaped fixing groove 4 is formed on the top surface 1 b of the pallet 1. On the other hand, in the second embodiment, the second inclined wall portion 4c is divided into a plurality of pieces and is formed in a comb shape. The first inclined wall portion 4b only has to guide the end portion of the sheet pallet 3 from the insertion port portion 4a to the inside, and the second inclined wall portion 4c is the end portion of the sheet pallet 3 together with the first inclined wall portion 4b. Any shape can be used as long as it can be fixed by frictional force and opened when pulled in the opposite direction.
Therefore, even with such a configuration, substantially the same operational effects as those of the first embodiment can be obtained.

  In the above-described first and second embodiments, the case where the top surface 1b of the pallet 1 is a flat surface has been described as an example. However, even if the top surface 1b is configured by a rib portion formed in a lattice shape, the fixed groove By forming 4, a similar effect can be obtained. In this case, since the fixing groove 4 is formed on the load mounting surface which is the flat surface of the upper surface of the rib portion, the insertion port portion is intermittently formed in the plurality of ribs formed on the top surface. become.

[Third Embodiment]
FIG. 5A is a perspective view of a pallet according to the third embodiment of the present invention. 5B and 5C are cross-sectional views taken along the line XX ′ of the movable seat receiving mechanism in FIG. 5A, respectively, and FIG. 5B is a state when not in use. 5 (c) shows a state in use. In the third embodiment, as shown in FIG. 5 (a), instead of forming the fixed groove 4 on the top surface (loading surface) 1b of the pallet 1, movable sheet receiving mechanisms 8a and 8b are provided. ing. As shown in FIGS. 5B and 5C, the movable sheet pick-up mechanisms 8a and 8b hold the end corresponding to one side of the sheet pallet 3 between the inclined facing surfaces 12a and 12b and generate frictional force. It has a pair of movable plate-like members 9a and 9b to be fixed. In the plate-like members 9a and 9b, the opposing surfaces 12a and 12b are tapered so as to form the insertion port portion and the first and second inclined wall portions, similarly to the fixing groove 4 described above.

  The plate-like members 9a, 9b are attached in the accommodating portions 14a, 14b formed on the top surface 1b of the pallet 1 by a plurality of columnar columns 13a,... And are paired by elastic members 15a,. The plate-like members 9a and 9b are configured to be movable up and down. When the movable sheet pick-up mechanisms 8a and 8b are not in use, as shown in FIG. 5B, the plate-like members 9a and 9b are pulled downward by the contraction force of the elastic members 15a,. The upper surface of 9a is flush with the top surface 1b. On the other hand, at the time of use, as shown in FIG. 5C, the plate members 9a and 9b are pulled up and the stopper 16 is inserted between the bottom surface of the accommodating portion 14a and the plate member 9b, so that the plate member 9a. Is held upward from the top surface 1 b of the pallet 1. When the end corresponding to one side 3a of the sheet pallet 3 is inserted in one direction (arrows A1 and A2), the end is fixed by a frictional force, and when the sheet pallet 3 is pulled in the reverse direction. Open.

As described above, even if the movable sheet pick-up mechanisms 8a and 8b are provided in place of the fixed groove 4, substantially the same operational effects as those of the first and second embodiments described above can be obtained.
Although the movable sheet pick-up mechanisms 8a and 8b are configured so that the plate-like members 9a and 9b can be moved up and down by the elastic members 15a and so on, the present invention is not limited to this configuration. For example, if the end corresponding to one side 3a of the sheet pallet 3 can be inserted, only the plate member 9a may be movable. In addition, accommodating portions 14a and 14b for accommodating the movable sheet pick-up mechanisms 8a and 8b are provided on the top surface 1b of the pallet 1, and the movable sheet pick-up mechanisms 8a and 8b are detachable and attached as necessary. Anyway. Furthermore, although the plate-like members 9a and 9b are configured to be movable up and down by an elastic member 15a such as a spring, it is needless to say that they may be fixed.

[Fourth Embodiment]
FIG. 6 is a perspective view of a pallet according to the fourth embodiment of the present invention. In the above-described first to third embodiments, the plastic pallet has been described. However, the fourth embodiment is applied to the wooden pallet 5. This wooden pallet 5 is a double-sided type and has a two-way configuration. That is, the upper deck boats 6a, 6b, 6c and the upper edge boards 6d, 6e are fixed to the upper surfaces of the pair of girders 5a, 5b arranged in parallel, and the lower deck boats 7a, 7b, 7c and the lower edge boards are fixed to the lower surface. 7d and 7e are fixed. Further, a reinforcing inner beam 5c is inserted between the beams 5a and 5b.

The fixing groove 4 is formed along the longitudinal direction of the upper edge board 6d. In the case of the wooden pallet 5, the fixed groove 4 can be formed by cutting the upper edge board 6d in an oblique direction with a circular saw or the like.
Of course, even with such a double-sided and two-way wooden pallet 5, the same effects as those of the first and second embodiments can be obtained.

[Fifth Embodiment]
FIG. 7 is a perspective view of a pallet according to the fifth embodiment of the present invention, which is applied to a four-way wooden pallet 5. In addition to the insertion ports 2a, 2b,... Formed on both side surfaces between the beam 5a and the inner beam 5c, and between the beam 5b and the inner beam 5c, the insertion ports 2c, By forming 2d,..., It is possible to insert from the front, rear, left and right directions.

The fixing groove 4 is formed along one end of each of the upper deck boats 6a, 6b, 6c and the upper edge boards 6d, 6e. The fixed groove 4 may be formed in a diagonal direction with a circular saw or the like, as in the third embodiment.
Even with such a four-way wooden pallet 5, the same operational effects as those of the first to third embodiments can be basically obtained.

The present invention is not limited to the first to fifth embodiments described above, and can be implemented with various modifications without departing from the scope of the invention.
<Modification 1>
For example, in each of the above-described embodiments, the fixed groove 4 or the movable seat receiving mechanisms 8a and 8b are formed along one side of the top surface 1b. However, the fixed groove or the movable type along two opposite sides, three sides, or four sides. A sheet pick-up mechanism may be formed. In this case, it is preferable to form a fixed groove and a movable seat picking mechanism on the side opposite to the side surface on which the insertion ports 2a, 2b, 2c, 2d,. If a fixed groove or a movable sheet pick-up mechanism is formed along the four sides of a four-way pallet into which a nail can be inserted, there is no need to consider the direction of the pallet. In addition, when not only the top surface of the pallet but also both surfaces can be used, a fixed groove or a movable sheet receiving mechanism may be formed on the upper and lower deck surfaces.

<Modification 2>
Moreover, in each embodiment mentioned above, it demonstrated taking the case of the sheet | seat pallet provided with one tab part 3c along one side of the sheet-like part 3b. However, depending on the work contents, a plurality of tab portions are required. The tab portion can be extended from a plurality of sides such as two opposite sides, two adjacent sides, or three sides of the sheet-like portion 3b, and can be from one tab to four tabs (four directions). .

<Modification 3>
In addition, plastic pallets and wooden pallets, which are used relatively well in logistics, were taken as examples. However, if a fixed groove for fixing the sheet pallet and a movable sheet pick-up mechanism can be formed, a metal pallet (steel, aluminum The same applies to pallets of other materials.
In addition, the types of pallets can be applied to various types and shapes other than the above-described examples.

1 ... Plastic pallet
1a ... main body 1b ... top surface (loading surface)
1c: One side 2a, 2b, 2c, 2d ... Insert 3 ... Sheet palette (second sheet palette)
3a ... one side 3b ... sheet-like part 3c ... tab part 4 ... fixing groove (fixing means)
4a ... Insertion port 4b ... Inclined wall (first inclined wall)
4c: Inclined wall part (second inclined wall part)
4d ... Bottom 5 ... Wooden pallet (pallet)
5a, 5b ... Girder 5c ... Inner girder 6a, 6b, 6c ... Upper deck boat 6d, 6e ... Upper edge board 7a, 7b, 7c ... Lower deck boat 7d, 7e ... Lower edge board 8a, 8b ... Movable seat pick-up mechanism (Fixing means)
9a, 9b ... Plate-like member 10 ... Cargo (load)
11 ... Sheet palette (first sheet palette)
12a, 12b ... Opposing surface 13a ... Posts 14a, 14b ... Housing 15a ... Elastic member 16 ... Stopper

Claims (9)

  A fixing means is provided that, along at least one side of the load loading surface, fixes an end corresponding to one side of the sheet pallet when the end is inserted in one direction and opens when pulled in the opposite direction. A pallet characterized by that.   The pallet according to claim 1, wherein the fixing means is a fixing groove that is fixed by a frictional force when an end corresponding to one side of the sheet pallet is inserted. The fixing groove is
An insertion port formed along one side of the load loading surface and into which an end corresponding to one side of the sheet pallet is inserted;
A first inclined wall portion for guiding an end portion of the sheet pallet from the insertion port portion to the inside;
Opposing to the first inclined wall portion, the width of the sheet pallet is arranged to become narrower from the insertion port to the back, and the frictional force is obtained by sandwiching the end portion of the sheet pallet together with the first inclined wall portion. The pallet according to claim 2, further comprising: a second inclined wall portion that is fixed by a second member and is opened when pulled in a reverse direction.   The pallet according to claim 3, wherein the insertion opening is formed in a slit shape along one side of the loading surface of the load.   The pallet according to claim 3, wherein the insertion port portion is formed intermittently on a plurality of ribs provided on the loading surface of the load.   The fixing means is a movable sheet pick-up mechanism having a pair of movable plate-like members that are fixed by frictional force by sandwiching an end corresponding to one side of the sheet pallet between inclined surfaces. The pallet according to claim 1. Loading and loading a load on the first sheet pallet;
A fixing means is provided that, along at least one side of the load loading surface, fixes an end corresponding to one side of the sheet pallet when the end is inserted in one direction and opens when pulled in the opposite direction. Fixing the second sheet pallet to the pallet;
The first sheet pallet on which the loaded load is loaded is placed on the pallet on which the second sheet pallet is fixed, and the first sheet pallet is pulled out while lowering the load on the second sheet pallet. A method of transporting a load using a pallet, comprising: a step of changing the load.   The transportation of the load using the pallet according to claim 7, further comprising a step of storing a pallet loaded with the load via the second sheet pallet after the step of replacing the load. Method.   After at least one of the step of changing the load and the step of storing, the step of removing the second sheet pallet together with the load loaded from the pallet and transporting the load using the second sheet pallet The method for transporting a load using a pallet according to claim 7 or 8, further comprising:

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