JP6024124B2 - Rectangular thin panel transport unit - Google Patents

Description

  The present invention relates to a rectangular thin plate panel transport unit, and more specifically, when a plurality of rectangular thin plate panels are stacked and transported, the rectangular thin panel panels can be reliably prevented from being damaged or damaged during transport. The present invention relates to a rectangular thin plate panel transport unit capable of storing rectangular thin plate panels stably over a long period of time.

Conventionally, corner materials have been used for storing and transporting a thin rectangular panel that is fragile and heavy, for example, a solar panel stacked in a non-contact manner in the vertical direction.
Patent Document 1 discloses an example thereof.
This corner material is connected to the support surface in a form extending outward from the support surface for supporting the solar panel P from below, and transmits the weight of the solar panel P in the vertical direction. A molded product member, and upper and lower portions of the molded product member have recesses or projections that can be fitted to each other.

According to such a corner material, the corner material is applied to each of the four corners of the solar panel P whose periphery is supported by a rectangular annular outer frame, and the solar panel P is placed on each support surface via the outer frame. Then, at each corner, the lower concave portion of the new corner member is fitted into the upper convex portion of the already disposed corner member, and the next solar panel P is similarly set to four corners. By supporting with the material, it is possible to stack the solar panels P vertically in a non-contact manner.
However, such a corner material has the following technical problems if each of the four corners of the solar panel P is placed on the support surface of the corner material without an outer frame and transported using a pallet. Exist.
That is, there is a risk that the solar panel P may be damaged or broken during transportation.

More specifically, for example, when the stacked solar panels P are transported by truck, or when the pallet travels on an uneven road surface, the solar panels P vibrate so that the central portion of the solar panels P is almost the same. Maximum amplitude in the vertical direction. At this time, since each corner of the solar panel P placed on the support surface of the corner material becomes a free end, compared to the case where each corner becomes a fixed end by the outer frame, The amplitude of the central portion tends to be amplified, and the solar panel P may be damaged or possibly damaged due to such vibration or by hitting the upper and lower support portions.
In this case, in order to suppress such vibration, it is assumed that a so-called buffer spacer is put between the stacked solar panels P. However, if the solar panel P is supported by the buffer spacer together with the corner material, The buffer spacer, particularly the lower buffer spacer, may be crushed and impair the buffer function. On the other hand, if the thin panel is supported only by the corner materials arranged at the four corners, the weight of the thin panel is substantially reduced by the buffer spacer. It is possible to prevent the buffer spacer from being crushed by not being loaded, but the buffer spacer can be moved relative to the thin panel. Or may be detached from the thin panel.
JP 2006-32978 A

  Accordingly, in view of the above technical problems, the object of the present invention is to reliably prevent damage or breakage of the rectangular thin panel during transportation when stacking and transporting a plurality of rectangular thin panels. It is an object of the present invention to provide a rectangular thin plate panel transport unit capable of storing rectangular thin plate panels stably over time.

In order to solve the above problems, a rectangular thin plate panel transport unit according to the present invention comprises:
A unit for transporting thin plate panels used for stacking and transporting a plurality of rectangular thin plate panels,
Each is provided with a plurality of sets of four corner members that support each corner of the rectangular thin plate panel from below,
A pallet for conveyance having an upper surface on which a set of the corner material at the bottom is placed when stacking a plurality of rectangular thin plate panels in the vertical direction by stacking the corner materials in a columnar shape in the vertical direction at each corner. When,
A pair of fixed buffer spacers each provided along the opposing edges of the solar panel P supported from below by the corner material at each corner;
Each of the pair of buffer spacers includes a main body portion and a positioning portion that is formed outside the main body portion and suppresses relative horizontal movement between the buffer spacers adjacent in the vertical direction.
The main body portion has a mounting lower surface mounted on the upper surface of the lower rectangular thin plate panel in the vertically stacked rectangular thin plate panels at the lower portion, and the upper rectangular thin plate panel at the upper portion. A contact upper surface that can contact the lower surface of the
The positioning portion has a portion that can be engaged with each other in the buffer spacers adjacent in the vertical direction, and between the lower surface of the positioning portion of the upper buffer spacer and the upper surface of the positioning portion of the lower buffer spacer. A predetermined clearance is provided.

According to the conveyance unit of the rectangular thin plate panel having the above configuration, in the four corner material groups, the lowermost corner material group should be placed on the upper surface of the conveyance pallet and conveyed by each corner material. In the form of supporting the weight of a plurality of rectangular thin plate panels by a plurality of columnar corner materials by supporting the corners of the rectangular thin plate panel from below and stacking the corner materials in a columnar shape in the vertical direction at each corner. It is possible to stack a plurality of rectangular thin plate panels in the vertical direction and transport the stacked rectangular thin plate panels together with the pallet for transportation, for example, by a forklift.
During transportation, for example, when a forklift travels on an uneven road surface, a corner material is passed through a plurality of rectangular thin plate panels, and the support portion by the corner material of the rectangular thin plate panel becomes a valley portion, and the substantially central portion of the rectangular thin plate panel is abdomen. A pair of fixed buffer spacers are arranged along the opposing edges of each of the stacked rectangular thin panels, and the upper and lower surfaces of each rectangular thin panel are The lower surface of the upper buffer spacer and the upper surface of the lower buffer spacer are opposed to each other, so that the upper surface and the lower surface of the rectangular thin panel come into contact with the lower surface and the upper surface of the rectangular plate during vibration, respectively. While the amplitude of the substantially central part that forms the maximum amplitude of the thin panel is limited, the buffer spacers adjacent in the vertical direction can be engaged with each other. And a predetermined horizontal clearance between the lower surface of the positioning part of the upper buffer spacer and the upper surface of the positioning part of the lower buffer spacer, so that the relative horizontal movement between the buffer spacers adjacent in the vertical direction As a result, it is possible to reliably prevent the rectangular thin plate panel from being damaged or damaged during conveyance.

Further, the engageable portion includes a convex portion protruding from the upper surface or the lower surface of the positioning portion, and a concave portion recessed from the lower surface or the upper surface of the positioning portion to which the convex portion can be fitted. It is preferable to adjust the height of the convex part and / or the concave part so that a predetermined clearance is provided between the top part of the convex part and the bottom part of the concave part.
Further, each of the pair of buffer spacers is disposed at a central portion of the long side of the rectangular thin plate panel, and the contact upper surface corresponds to the bottom surface of the rectangular thin plate panel when the rectangular thin plate panels are stacked. It is recommended that the height of the corner material is adjusted.
Still further, the concave portion has a bottom surface and an inner side surface extending between the bottom surface and the upper surface or the lower surface and extending to the outer surface side opposite to the main body portion, and the convex portion is a top surface. And an outer surface extending to the outer surface opposite to the main body and extending between the top surface and the upper surface or the lower surface.
In addition, the buffer spacer is a rectangular parallelepiped, and an upper surface is provided with a step portion extending in the long side direction, and the contact upper surface extends from the inner surface of the main body portion to the step portion, and the top surface. Is a rectangular shape provided on the upper surface, and the outer surface extends to the step portion in the short side direction, respectively, and the first and second outer surfaces facing each other, and the first and second at the step portion. A third outer surface formed between the side surfaces,
The top surface has a shape complementary to the bottom surface, and the inner side surfaces extend to the step portion in the short side direction, respectively, and the first and second inner side surfaces facing each other, and the first and second inner surfaces at the step portion. A third inner surface formed between the two inner surfaces,
Thereby, the relative horizontal movement in the long side direction and the short side direction of the thin panel between the buffer spacers adjacent in the vertical direction may be suppressed.

Further, the buffer spacer is preferably made of a solid foamed resin by integral molding, and has a foaming ratio such that a desired buffer function is exhibited with respect to the rectangular thin panel.
Furthermore, the buffer spacer is composed of a pair of thermoplastic resin plate materials, and a side peripheral surface is formed by adhering the peripheral portions of each of the pair of thermoplastic resin plate materials, and the inside is sealed and hollow. Each of the pair of thermoplastic resin plate members has a plurality of inwardly tapered recesses on the outer surface so as to protrude on the inner surface side, The flat plate portion of each of the pair of resin plate members has an annular rib extending between the two plate members, so that the flat portions of the corresponding recesses of the pair of resin plate members face each other. The number and / or thickness of the annular ribs may be such that a desired buffer function is exhibited.

In addition, the rectangular thin plate panel is a solar panel, and the predetermined clearance may be 5 mm or more.
Further, the buffer spacer is provided with a concave portion extending in the vertical direction on the outer surface thereof, and a plurality of the concave portions form a span for fixing the belt by aligning and stacking the buffer spacers. It is good to be done.

In order to solve the above problems, a rectangular thin plate panel transport unit according to the present invention comprises:
A unit for transporting thin plate panels used for stacking and transporting a plurality of rectangular thin plate panels,
Each is provided with a plurality of sets of four corner members that support each corner of the rectangular thin plate panel from below,
A pallet for conveyance having an upper surface on which a set of the corner material at the bottom is placed when stacking a plurality of rectangular thin plate panels in the vertical direction by stacking the corner materials in a columnar shape in the vertical direction at each corner. When,
A pair of fixed buffer spacers respectively provided along opposing edges of the rectangular thin plate panel supported by the corner member from below at each corner;
Each of the pair of buffer spacers includes a main body portion and a positioning portion that is formed outside the main body portion and suppresses relative horizontal movement between the buffer spacers adjacent in the vertical direction.
The main body portion has a sandwiching support portion for sandwiching and supporting a rectangular thin plate panel,
The positioning portion has a portion that can be engaged with each other in the buffer spacers adjacent in the vertical direction, and between the lower surface of the positioning portion of the upper buffer spacer and the upper surface of the positioning portion of the lower buffer spacer. A predetermined clearance is provided.

Further, the sandwiching support portion is formed by a long groove provided on the inner side surface of the main body portion along the longitudinal direction of the inner surface, and the width of the long groove corresponds to the thickness of the rectangular thin panel to be sandwiched and supported. Should be set.

An embodiment of a thin panel transport unit 10 according to the present invention will be described below in detail with reference to the drawings, taking as an example a case where rectangular solar panels P are stacked without an outer frame as a thin panel.
The solar panel P has a thin plate shape in which cells are connected in series and protected by resin, tempered glass, or a metal frame. More specifically, the solar panel P is made of silicon between a glass layer and a plastic layer, or between a glass layer and a glass layer. It is a laminated structure in which cells composed of the above are embedded, and has a thickness of several millimeters, an area of several square meters, and a weight of 10 to 30 kg. Since the solar panel P is usually provided with a power supply box 101 and a cord connected thereto on the upper surface, it is difficult to stack the solar panels P in a surface contact form.

As shown in FIG. 1, in the transport unit 10 for stacking and transporting the solar panels P, a plurality of sets of four resin corner members 11 that support each corner of the solar panel P from below are provided. In each corner, when the plurality of solar panels P are stacked in the vertical direction, the pair of the resin corner materials 11 in the lowermost part is placed by stacking the resin corner materials 11 in the vertical direction. And a pair of fixed buffer spacers 100 respectively provided along the opposing edges of the solar panel P supported from below by the resin corner material 11 at each corner. Is done.
As shown in FIG. 1, the rectangular pallet 200 is made of metal, and a plurality of metal beam members 204 arranged so as to form a frame 202 according to the size of the solar panel P to be supported, A plurality of metal leg members 206 fixed under the metal beam member 204, the plurality of metal leg members 206 being arranged so as to form a conveying fork insertion space 208 between the adjacent metal leg members 206. In order to position the resin corner material 11 (to be described later) for stacking a plurality of solar panels P by supporting each of the metal leg members 206 and the four corners of the solar panel P with respect to the frame 202 The corner material starter 210 is provided. The plurality of metal beam members 204 each constitute the long side of the frame 202 and each of the pair of first metal beam members 212 arranged in parallel and the short side of the frame 202, and are arranged in parallel. Two reinforcements connecting the pair of first metal beam members 212 in parallel with the second metal beam member 214 between the pair of second metal beam members 214 and the pair of second metal beam members 214 The corner material starter 210 is disposed at each of the four corners of the frame 202, and a plurality of sunlight is stacked by stacking the resin corner material 11 in a columnar shape above the corner material starter 210. Panel P can be stacked. Each of the plurality of metal beam members 204 has a hollow shape having a rectangular closed cross section, is arranged in a vertically long shape, and the plurality of metal leg members 206 are fixed to the four corners of the frame 202.
According to the metal pallet 200 having the above-described configuration, the plurality of metal beam members 204 constituting the framework of the rectangular pallet 200 are used to position the corner material starter 210 and the plurality of metal leg members 206. Is fixed at each of the four corners of the frame 202, and a plurality of solar panels P can be stacked by stacking the resin corner material 11 in a column shape via the corner material starter 210. At the same time, it is possible to form a transport fork insertion space 208 between adjacent metal leg members 206.
More specifically, for example, the solar panel P is not directly placed on the upper surface of the rectangular pallet 200, but the corner material starter 210 with respect to the frame 202 formed by the plurality of metal beam members 204. The solar panel P can be stacked efficiently and stably through the resin corner material 11 and is transported to the transport fork insertion space 208 because of the frame-shaped metal pallet. The fork can be inserted while visually checking, and the weight or cost of the pallet itself can be reduced while ensuring sufficient strength and stable conveyance even with vibration during transportation with a simple structure. Is something that can be done.

As shown in FIGS. 2 to 4, the resin corner member 11 has an L-shape that is line-symmetric, and the sandwiching support portions are connected to the upper plate-like body 12 connected in parallel with each other at an interval in the vertical direction. It has a pair of plate-like bodies 16 composed of a lower plate-like body 14, and a vertical wall 18 that connects the upper plate-like body 12 and the lower plate-like body 14. A box structure 22 attached to the outer surface 20 is provided, and the resin corner material 11 is made of resin, and these are integrally molded. As will be described in detail later, the resin corner material 11 is made of resin at each of the four corners of the solar panel P. After applying the corner material 11 and sandwiching and supporting the solar panel P, the next resin corner material 11 is placed on each resin corner material 11 to support the next solar panel P. Repeatedly stacked solar panels P vertically It is way.
In this sense, the weight of the solar panel P is transmitted at each corner through the resin corner material 11 stacked in a columnar shape, and the lowermost resin corner material 11 has the same number of solar panels P stacked. The weight of is loaded.

The resin material of the resin corner material 11 is a thermoplastic resin, and is an olefin resin such as polyethylene or polypropylene, or an amorphous resin, and more specifically ethylene, propylene, butene, isoprene pentene, methyl pentene, or the like. Polyolefins (for example, polypropylene and high-density polyethylene) that are homopolymers or copolymers of olefins, and the structure of the resin corner material 11 is relatively complex, and is particularly suitable for integral molding by injection molding. ing.
The upper plate-like body 12 and the lower plate-like body 14 constituting the pair of plate-like bodies 16 each have an L-shape, and the upper plate-like body 12 and the lower plate-like body 14 make it particularly clear in FIG. As shown, the vertical wall 18 is provided so as to connect the outer edge 31 of the upper plate 12 and the outer edge 33 of the lower plate 14 so as to form a substantially U-shaped cross section.
Thereby, a pair of plate-shaped body 16 comprises the pinching support part which pinches | interposes and supports the solar panel P, and the solar panel P is made into the upper plate-like body 12 and the lower plate-like body 14 from the open part of a U-shaped cross section It is inserted between and supported by being sandwiched.

As shown in FIGS. 2 and 3, the upper plate-like body 12 and the lower plate-like body 14 are provided with reinforcing ribs 41 and 43, respectively, and particularly when the solar panel P is sandwiched and supported, the lower plate-like body 14. Since the weight of the solar panel P is loaded, the lower plate-like body 14 is supported from below. The upper surface of the lower plate-like body 14 constitutes a support surface that contacts and supports the lower surface of the solar panel P.
As shown in FIG. 3, the outer surface 20 of the vertical wall 18 is provided with a box structure 22 having an L-shaped cross section having ribs 36 inside, and is formed outward from the outer surface 20 of the vertical wall 18. A load transmitting portion having a load transmitting surface is configured.
More specifically, the upper surface 37 and the lower surface 39 of the box structure 22 are parallel to each other, and when the solar panels P are stacked, the upper surface 37 forms a load receiving surface 74 from the upper resin corner member 11. The lower surface 39 forms a load release surface 72 to the lower resin corner material 11.

The positioning portion has a projecting portion 70 projecting downward at the lower part of the resin corner material 11, and the load release surface 72 of the upper resin corner material 11 is mounted on the load receiving surface 74 of the lower resin corner material 11. When the upper resin corner member 11 is stacked on the lower resin corner member 11 in a manner to be placed, the outer surface of the protrusion 70 of the upper resin corner member 11 is the inner surface of the upper portion of the lower resin corner member 11. Against the inside from the inside.
More specifically, the projecting portion 70 has a second stepped portion 80 formed on the load release surface 72, and further formed on the load receiving surface 74, and a first stepped portion complementary to the second stepped portion 80. 78.
As shown in FIG. 2, the first stepped portion 78 includes a lower horizontal surface 82 provided on the proximal side with respect to the sandwiching support portion, and an upper horizontal surface 84 provided on the distal side with respect to the sandwiching support portion, A first inclined surface 86 is interposed between the lower horizontal plane 82 and the upper horizontal plane 84 and faces upward from the outer surface of the vertical wall.
On the other hand, as shown in FIG. 3, the second stepped portion 80 includes a lower horizontal plane 88 provided on the proximal side with respect to the sandwiching support portion and an upper horizontal plane 90 provided on the distal side with respect to the sandwiching support portion. And a second inclined surface 92 that is interposed between the lower horizontal plane 88 and the upper horizontal plane 90 and faces upward from the outer surface of the vertical wall.

  As a result, the lower horizontal surface 82, the first inclined surface 86, and the upper horizontal surface 84 of the first stepped portion 78 of the lower resin corner material 11 are placed between the upper and lower adjacent resin corner materials 11 in the stacked state. While the entire upper surface 37 of the box structure 22 constitutes a load receiving surface so as to abut against the lower horizontal surface 88, the second inclined surface 92 and the upper horizontal surface 90 of the second stepped portion 80 of the resin corner member 11, The entire lower surface 39 of the box structure 22 constitutes a load release surface.

  With the above configuration, when the upper corner material is stacked on the lower corner material in a form in which the load release surface of the upper resin corner material 11 is placed on the load receiving surface of the lower resin corner material 11, the upper resin is stacked. The first inclined surface 86 of the corner material 11 is in contact with the second inclined surface 92 of the lower resin corner material 11 from the inside, so that the upper resin corner material 11 is exposed to the lower resin corner material 11. Horizontal movement in the direction is restricted, and the resin corner material 11 is arranged at each of the four corners of the solar panel P, so that the resin corner material 11 passes through the solar panel P to the inside. That is, inward horizontal movement of the upper resin corner material 11 with respect to the lower resin corner material 11 is also restricted.

In particular, since both the upper plate-like body 12 and the lower plate-like body 14 are formed in an L-shape as described above, two orthogonal directions on the horizontal plane can be controlled correspondingly, More specifically, the resin corner material 11 under the upper resin corner material 11 is regulated inward in two orthogonal directions with respect to the resin corner material 11 under the upper resin corner material 11. 11 is restricted outwardly in two orthogonal directions.
A plurality of ribs 36 are provided, and are provided so as to extend in the vertical direction in parallel with the end surfaces 94 and 95 of the box structure 22.

In addition, as for the lowermost resin corner material starter placed on the upper surface of the rectangular pallet 200, the upper portion has the same structure as the other resin corner material 11, but the lower side portion has a framework. Since it is placed on 202, the structure is different. That is, an L-shaped groove (not shown) extending from the end surface 94 to the end surface 95 is formed on the lower side portion, and an inner edge (not shown) and an outer edge (not shown) constituting the L-shaped groove are provided. By placing the resin corner material starter on the frame 202 in such a manner that the bottom surface, the inner edge and the outer edge of the L-shaped groove are in contact with the upper surface, the inner surface and the outer surface 120 of the corner of the frame 202, respectively. To be positioned.
Since the box structure 22 itself constitutes a load transmitting portion and strength is required, the area of the upper and lower surfaces 37 and 39 and the thickness and number of ribs 36 in the box structure 22 are determined from this viewpoint. Just do it.

Next, as shown in FIGS. 6 to 8, the buffer spacer 100 has an elongated shape made of resin, and has a material and a structure for buffering vibration applied to the solar panel P stacked during conveyance.
More specifically, the resin material of the buffer spacer 100 is a thermoplastic resin, such as an olefin resin such as polyethylene or polypropylene, or an amorphous resin such as polystyrene, and more specifically ethylene, propylene, butene. Polyolefin (for example, polypropylene, high density polyethylene) which is a homopolymer or copolymer of olefins such as isoprene pentene and methyl pentene.
The buffer spacer 100 is made of a solid foamed resin made of foam beads, and has a foaming ratio such that the solar panel P exhibits a desired buffer function. For example, the expansion ratio is 10 to 40 times.

  As a modification, the buffer spacer 100 may be configured as a hollow structure by a pair of thermoplastic resin plate materials (not shown). More specifically, by adhering the peripheral portions of each of the pair of thermoplastic resin plate materials, a side peripheral surface is formed, and a sealed hollow portion is formed inside, and the pair of thermoplastic resin plate materials are respectively The outer surface has a plurality of recesses (not shown) tapered inwardly so as to protrude on the inner surface side, and each of the plurality of recesses has an abutting flat surface portion at the most detail, An annular rib (not shown) extending between the two plate members is formed by butt welding in such a manner that the flat portions of the corresponding recesses of the resin plate members face each other. In this case, the number and / or thickness of the annular ribs to the extent that the solar panel P exhibits a desired buffer function is determined.

As shown in FIGS. 6 and 7, each of the buffer spacers 100 has a rectangular parallelepiped shape, and the longitudinal direction of the buffer spacer 100 is arranged along the long side of the solar panel P at the approximate center of the long side.
Each of the pair of buffer spacers 100 includes a main body portion 102 and a positioning portion 104 that is formed outside the main body portion 102 and suppresses relative horizontal movement between the buffer spacers adjacent in the vertical direction, as shown in FIG. Further, the positioning portion 104 protrudes outward from the long side of the solar panel P, and the buffer spacers 100 adjacent in the vertical direction are stacked in a non-contact manner on each long side of the solar panel P. I have to.
The main body 102 has a mounting lower surface 106 that is mounted on the upper surface of the lower solar panel P in the stacked solar panels P adjacent in the vertical direction at the lower part, and the upper part at the upper part. A contact upper surface 108 that can contact the lower surface of the solar panel P is provided.
The height of the abutting upper surface 108 may be adjusted with the corresponding pair of resin-made resin corner materials 11 so as to hit the lower surface of the solar panel P when the solar panels P are stacked.

The positioning portion 104 has portions that can be engaged with each other in the buffer spacer 100 adjacent in the vertical direction, and the lower surface 107 of the positioning portion 104 of the upper buffer spacer 100 and the upper surface of the positioning portion 104 of the lower buffer spacer 100. A predetermined clearance C (see FIG. 8) is provided between the terminal 105 and the terminal 105. The predetermined clearance is 5 mm or more as described below.
The engageable part has a convex part 110 protruding from the upper surface 105 of the positioning part 104 and a concave part 112 recessed from the lower surface 107 of the positioning part 104 to which the convex part 110 can be fitted. The height of the convex part 110 and / or the concave part 112 is adjusted so that a predetermined clearance is provided between the top part of the convex part 110 and the bottom part of the concave part 112. Similarly, the predetermined clearance is 5 mm or more as described below.

More specifically, the recess 112 is a rectangular parallelepiped groove, and has a bottom surface 114 and an inner side surface 116 that extends to the outer surface 120 opposite to the main body 102 and extends between the bottom surface 114 and the lower surface. The convex portion 110 has a top surface 118 and an outer surface 121 extending to the outer surface 120 opposite to the main body portion 102 and extending between the top surface 118 and the upper surface.
A step 122 extending in the long side direction is provided on the upper surface of the buffer spacer 100, the contact upper surface 108 extends from the inner surface of the main body 102 to the step 122, and the top surface 118 is provided on the upper surface. The outer surface 121 has a rectangular shape, and extends to the step portion 122 in the short side direction, and is formed between the first and second outer surfaces 121A and 121B that face each other and the first and second side surfaces in the step portion 122. And a third outer surface 121C.
The top surface 118 has a shape complementary to the bottom surface 114, and the inner side surface 116 extends to the step portion 122 in the short side direction, respectively, and the first and second inner side surfaces 116 </ b> A, B facing each other and the first step portion 122. And a third inner side surface 116 </ b> C formed between the second inner side surfaces 116.
Thereby, in the buffer spacer 100 in the vertical direction, the third inner side surface 116C of the upper buffer spacer 100 hits the third outer surface 121C of the lower buffer spacer 100, so that the solar panel P between the buffer spacers 100 is short. The relative movement in the side direction is suppressed, and the first and second inner side surfaces 116A, B of the upper buffer spacer 100 abut against the first and second outer surfaces 121A, B of the lower buffer spacer 100, thereby The relative movement in the long side direction of the solar panel P between the spacers 100 is suppressed.

Further, the buffer spacer 100 is provided with a concave portion 125 extending in the vertical direction on the outer side surface 120, and the buffer spacer 100 is aligned and stacked as shown in FIG. A span for fixing the belt is formed.
The lowermost buffer spacer starter placed on the upper surface of the rectangular pallet 200 has an upper surface having a structure similar to that of the buffer spacer 100, and is complementary to the recess 112 provided on the lower surface of the buffer spacer 100. However, since the entire shape is placed on the frame 202, the structure is different. That is, it has an L-shaped vertical cross section, and the starter for the buffer spacer is configured to be screwed to the rectangular pallet 200 in a form that covers the upper side of the corresponding first metal beam member 212. .

The effect | action of the conveyance unit 10 of the solar panel P which has the above structure is demonstrated below through description of the method of stacking the solar panel P up and down using the resin-made corner materials 11 and the buffer spacer 100. FIG.
In the case where a plurality of solar panels P are stacked in the vertical direction, transported by a forklift, and transported by a truck, the solar panels P are stacked in the vertical direction on the upper surface 201 of the rectangular pallet 200 as an example. explain.

  First, the resin corner material 11 is applied to each of the four corners of the plurality of solar panels P to be stacked. More specifically, the solar panel P is inserted between the lower plate-like plate 14 and the upper plate-like plate 12 from the open portion of the U-shaped cross section of the resin corner member 11, and the solar panel P is sandwiched between them. The resin corner material 11 is fixed to the solar panel P.

By performing such a process in parallel with each solar panel P, and preparing the solar panel P with the resin corner material 11 applied to the four corners, on the upper surface of the rectangular pallet 200, By omitting the process of applying the resin corner material 11 to the four corners of the solar panel P, the solar panels P can be efficiently stacked.
Next, with respect to the plurality of solar panels P to which the resin corner materials 11 are applied to the four corners, the plurality of solar panels are stacked in the form in which the resin corner materials 11 are stacked in columns at each corner and the buffer spacers 100 are stacked. Stack P sequentially.

  More specifically, a corner material starter is applied to each of the four corners of the frame 202, and a buffer spacer starter is disposed at each of the opposite long sides of the frame.

More specifically, when the lower plate of the corner material starter is placed on the upper surface of the frame 202 at each of the four corners, the mutually orthogonal portions of the inner surface of the frame 202 hit the inward of the corner material starter, The outward movement of the corner material starter with respect to the rectangular pallet 200 is limited, and the mutually orthogonal portions of the outer side surface of the frame 202 hit the outward edge of the corner material starter, whereby the corner material starter has a rectangular shape. When the inward movement with respect to the pallet 200 is restricted, the corner material starter is positioned with respect to the rectangular pallet 200 via the frame 202.
Further, the lowermost buffer spacer starter is fixed to the frame 202 by screws, and movement of the solar panel P in the short side direction and the long side direction is restricted.

Next, with respect to the plurality of solar panels P to which the resin corner materials 11 are applied to the four corners, the plurality of solar panels P are sequentially stacked in such a form that the resin corner materials 11 are stacked in a column shape at each corner. More specifically, in each corner, the first step portion of the next resin corner material 11 is in contact with the second step portion of the uppermost resin corner material 11 (corner material starter) from the inside. By placing the lower surface 39 of the box structure 22 of the next resin corner material 11 on the upper surface 37 of the box structure 22 of the corner material starter placed on the upper surface of the rectangular pallet 200, the next resin corner The lower horizontal surface 82, the first inclined surface 86 and the upper horizontal surface 84 of the material 11 are in contact with the lower horizontal surface 88, the second inclined surface 92 and the upper horizontal surface 90 of the uppermost resin corner material 11 (corner material starter), respectively. In the form in which the load is transmitted from the lower surface 39 of the box structure 22 of the next resin corner material 11 to the upper surface 37 of the box structure 22 of the corner material starter, Stomach stacking the following resin-made corner material 11.
As a result, the first solar panel P is placed on the upper surface of the pallet 200 via the corner material starter and the buffer spacer starter.

Next, the new buffer spacer 100 is placed on the upper surface of the solar panel P while the concave portion 112 of the new buffer spacer 100 is inserted into the convex portion 110 of the buffer spacer starter that has already been arranged. More specifically, as shown in FIG. 11, the positioning spacer 104 protrudes outward from each of the opposing long edges of the solar panel P with the inner surface of the buffer spacer 100 facing the long side of the solar panel P. Thus, it arrange | positions along the long side of the solar panel P in the approximate center of the long side. In this state, a predetermined clearance is secured between the lower surface of the upper buffer spacer 100 and the upper surface of the lower buffer spacer 100 (buffer spacer starter) so that no load is transmitted between the buffer spacers 100. It is.
Accordingly, the new upper buffer spacer 100 is restricted from moving in the short side direction and the long side direction of the solar panel P with respect to the lower buffer spacer 100 adjacent in the vertical direction, so that the buffer spacer 100 is stably provided. Can be stacked. The predetermined clearance is preferably set to 5 mm or more. That is, even if the main body portion 102 of the buffer spacer 100 is crushed by the load of the solar panel P and the relative position in the vertical direction of the solar panel P approaches, the positioning portion 104 of the buffer spacer 100 has a clearance. The lower surface 107 of the positioning portion 104 of the upper buffer spacer 100, the bottom surface 114 of the concave portion 112, the upper surface 105 of the positioning portion 104 of the lower buffer spacer 100, and the top surface 118 of the convex portion 110 are in contact with each other. Therefore, the load of the solar panel P is not transmitted between the upper and lower buffer spacers 100, and the vertical shear stress in the main body portion 102 and the positioning portion 104 of the buffer spacer 100 is not generated. Thereby, damage at the time of use of buffer spacer 100 can be prevented.

As described above, by stacking the resin corner material 11 at each of the four corners, a new solar panel P is stacked on the uppermost solar panel P, and then each of the opposing long sides of the solar panel P is stacked. By alternately repeating the operation of stacking the buffer spacers 100 in the center, the plurality of resin corner members 11 are stacked in a columnar shape at each of the four corners of the plurality of solar panels P, so that the plurality of solar panels P A plurality of solar panels P can be stacked in the vertical direction in such a manner that each is sandwiched between the buffer spacers 100 (see FIG. 5).
In this case, the positioning accompanying the stacking operation of the buffer spacers 100 can be easily performed by simply fitting the concave portions 112 into the convex portions 110 of the uppermost buffer spacer 100.

When the last solar panels P are stacked, the belt B is stretched in an inverted U shape in the recessed portions 1125 of the stacked buffer spacers 100, and each end of the belt B is connected to the corresponding edge of the rectangular pallet 200, for example. The solar panel P is fixed to the rectangular pallet 200 and fixed to the rectangular pallet 200, and the solar panel P with respect to the buffer spacer 100 below the upper buffer spacer 100 in the buffer spacer 100 adjacent in the vertical direction. It is possible to restrict the relative movement in the long side direction more firmly.
In some cases, at each of the four corners, a cover plate may be placed on the upper surface of the uppermost resin corner member 11, and a transport unit may be stacked thereon.

Next, while transporting by forklift or transporting by truck, a plurality of solar panels P are stacked in a stable manner in the vertical direction without the risk of the resin corner material 11 stacked in a columnar shape being destroyed. It is possible to convey the lower rectangular pallet 200 together and store the solar panels P in a predetermined place in a stacked state.
More specifically, when a forklift or a truck travels on an uneven road surface during transportation or transportation, vibration is caused to each solar panel P through the resin corner member 11, and each solar panel P Is configured to be sandwiched between the buffer spacers 100 adjacent to each other at the ends of the central portion of the long side where the maximum amplitude occurs, so that the solar panel P does not break even when it hits the buffer spacer 100 during vibration. Furthermore, the contact upper surface 108 of the lower buffer spacer 100 hits the lower surface of the solar panel P and limits the amplitude of the solar panel P within a predetermined range, so that the solar panel P is damaged or damaged during transportation. It is possible to prevent. The contact upper surface 108 of the buffer spacer 100 facing the lower surface of the solar panel P supported from below by the resin corner material 11 at each corner is preferably provided on the same surface as the support surface of the corner material. Thus, the solar panel is not only supported by the corresponding corner material at each of the four corners, but is also supported from below by the buffer spacer 100 in the center, and in a static state, the solar panel P is bent by its own weight. Can be restricted, and the amplitude of the solar panel P due to vibration during transportation can be suppressed.
As a modification of the stacking method of the solar panels P, since the convex portions 110 and the concave portions 120 of the buffer spacer 100 have been removed to the outer surface 120 side of the buffer spacer 100, the resin corner material 11 is provided at each of the four corners. After completing the stacking operation of the solar panels P without alternately performing the stacking operation of the fitted solar panels P and the stacking operations of the buffer spacers 100, between the solar panels P adjacent in the vertical direction Alternatively, the stacking operation may be performed by inserting the buffer spacer 100 from the long side of the solar panel P. In some cases, the buffer spacer 100 may be placed only in a necessary portion between the solar panels P adjacent in the vertical direction.

According to the transport unit 10 of the rectangular thin plate panel having the above-described configuration, in the set of four corner members 11, the pair of the lowermost corner members 11 is placed on the upper surface of the transport pallet 200, and each corner member 11 is placed. By supporting the corners of the solar panels P to be transported from below, and stacking the corner materials 11 in the vertical direction at each corner, the plurality of solar panels P are formed by the columnar corner materials 11. It is possible to stack a plurality of solar panels P in the vertical direction and transport the stacked solar panels P together with the transport pallet 200, for example, by a forklift.
During transportation, for example, when the forklift travels on an uneven road surface, through the corner material 11 to the plurality of solar panels P, the support portions by the corner material 11 of the solar panel P become valleys, and the solar panel P is almost the same. A vibration of a mode in which the central portion becomes an abdomen is caused, but a pair of fixed buffer spacers 100 are arranged along each facing edge of the stacked solar panels P, and each solar panel The upper surface and the lower surface of P are opposed to the mounting lower surface 106 of the upper buffer spacer 100 and the contact upper surface 108 of the lower buffer spacer 100. By hitting the mounting lower surface 106 and the contact upper surface 108, the amplitude of the substantially central portion that forms the maximum amplitude of the solar panel P is limited, while it is adjacent in the vertical direction. The buffer spacer 100 has portions that can be engaged with each other, and a predetermined clearance is provided between the lower surface 107 of the positioning portion 104 of the upper buffer spacer 100 and the upper surface 105 of the positioning portion 104 of the lower buffer spacer 100. Since it is provided, it is possible to suppress relative horizontal movement between the buffer spacers 100 adjacent to each other in the vertical direction, and thus it is possible to reliably prevent the solar panel P from being damaged or damaged during transportation. It is.

Below, 2nd Embodiment of this invention is described, referring FIG.9, FIG.10 and FIG.12. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof will be omitted. Hereinafter, the characteristic portions of the present embodiment will be described in detail.
The characteristic part of this embodiment is the support form of the solar panel P without the outer frame by the buffer spacer 100.
That is, in the first embodiment, the solar panel P is supported from below by the resin corner material 11 at each of the four corners, and the buffer spacer 100 does not directly support the solar panel P. In the present embodiment, the buffer spacer 100 sandwiches and supports the edge of the solar panel P.

More specifically, the sandwiching support part 300 is formed on the inner side surface of the main body part 102 by a long groove 302 provided over the longitudinal direction of the inner side surface, and the bottom surface of the long groove 302 constitutes the contact upper surface 108. The width W of the long groove 302 is set according to the thickness of the solar panel P to be sandwiched and supported. Tapered portions 304 are formed above and below the long groove 302 to facilitate the insertion of the solar panel P. In addition, the installation level of the long groove 302 is such that when each corner portion of the solar panel P is sandwiched and supported by the resin corner material 11, the long edge portion of the solar panel P can be similarly sandwiched and supported by the long groove 302. Set it.

When stacking the solar panels P using the buffer spacers 100 having such a configuration, in the first embodiment, the resin-made corner materials 11 are preliminarily applied to the four corners of the solar panel P. Is placed on the upper surface of the uppermost solar panel P while fitting the concave portion 112 into the convex portion 110 of the uppermost buffer spacer 100 at the site on the rectangular pallet 200, but in this embodiment Similarly to the resin corner material 11, the buffer spacer 100 can also be supported by sandwiching the long edge portion of each solar panel P in advance. As a result, when the solar panels P are stacked in the field on the rectangular pallet 200, the resin corner material 11 is applied to each corner, and the buffer spacer 100 is applied to each of the central portions of the opposing long edges. It is possible to sequentially stack the broken solar panels P.
After completing the stacking operation of the solar panels P, the stacking spacer 100 is inserted from the side of the long side of the solar panel P between the solar panels P adjacent in the vertical direction. This may be the same as in the first embodiment.

The embodiments of the present invention have been described in detail above, but various modifications or changes can be made by those skilled in the art without departing from the scope of the present invention.
For example, in this embodiment, after putting the buffer spacer 100 between the solar panels P, a plurality of buffer spacers 100 are stacked in a column shape, and the upper buffer spacer in the buffer spacer 100 adjacent in the vertical direction is stacked. Although the case where positioning of a plurality of stacked solar panels P is described by restricting relative movement with respect to the buffer spacer 100 below 100 is not limited thereto, for example, different types of solar panels P When stacking, if there is a restriction on the position where the buffer spacer 100 is placed on the upper surface 112 of a specific lightweight solar panel P, the buffer spacer 100 may be placed at a position different from the lower buffer spacer 100. As long as the positioning of the solar panels P to be stacked is ensured, the buffer spacer 100 is not necessarily continuous in a columnar shape. It is not necessary to overlap seen.
In the present embodiment, the buffer spacer 100 has been described in which the convex portion 110 is provided on the upper surface and the concave portion 112 is provided on the lower surface. However, the present invention is not limited thereto, and the convex portion 110 is provided on the upper surface and the lower surface. May be.

It is a whole perspective view of the conveyance unit of the solar panel P which concerns on 1st Embodiment of this invention. It is the whole perspective view from diagonally upward of the resin-made corner material of the conveyance unit of the solar panel P which concerns on 1st Embodiment of this invention. It is the whole perspective view from the slanting lower part of the resin-made corner material of the conveyance unit of the solar panel P which concerns on 1st Embodiment of this invention. FIG. 4 is a cross-sectional view taken along line CC in FIG. 3. In the conveyance unit of the solar panel P which concerns on 1st Embodiment of this invention, it is a partial side view which shows the resin-made corner materials and buffer spacers which adjoin the up-down direction. It is the whole perspective view from diagonally upward of the buffer spacer 100 of the conveyance unit of the solar panel P which concerns on 1st Embodiment of this invention. It is the whole perspective view from diagonally downward of the buffer spacer 100 of the conveyance unit of the solar panel P which concerns on 1st Embodiment of this invention. It is a fragmentary perspective view which shows the condition where the buffer spacer 100 is stacked in the one side edge of the solar panel P. FIG. It is the whole perspective view from diagonally upward of the buffer spacer 100 of the conveyance unit of the solar panel P which concerns on 2nd Embodiment of this invention. It is the whole perspective view from diagonally downward of the buffer spacer 100 of the conveyance unit of the sunlight panel P which concerns on 2nd Embodiment of this invention. In the conveyance unit of the solar panel P which concerns on 1st Embodiment of this invention, it is a fragmentary sectional view which shows the buffer spacer adjacent to an up-down direction. In the conveyance unit of the solar panel P which concerns on 2nd Embodiment of this invention, it is a fragmentary sectional view which shows the buffer spacer adjacent to an up-down direction.

P Solar Panel 10 Solar Panel P Transport Unit 11 Resin Resin Corner Material 12 Upper Plate 14 Lower Plate 16 Plate 18 Vertical Wall 20 Outer Surface 22 Box Structure 26 Upper Surface 28 Lower Surface 36 Rib 37 Upper surface 39 Lower surface 41 Reinforcement rib 43 Reinforcement rib 45 Inner edge 49 Lower edge 70 Projection part 78 First step part 80 Second step part 82 Lower horizontal surface 84 Upper horizontal surface 86 First inclined surface 87 Inner edge 88 Lower horizontal surface 90 Upper horizontal surface 92 Second inclination Surface 94 End surface 95 End surface 96 Load receiving horizontal surface 97 Inner edge 98 Load releasing horizontal surface 100 Buffer spacer 102 Body portion 104 Positioning portion 105 Upper surface 106 Mounting lower surface 107 Lower surface 108 Abutting upper surface 110 Protruding portion 112 Recessing portion 114 Bottom surface 116 Inner side surface 118 Top surface 120 Outer side surface 121 Outer side surface 122 Stepped portion 125 Recessed portion 200 Rectangular pallet 202 Set 204 metal beam member 206 metal Seiashi member 208 starter fork insertion space 210 corner member 212 first metallic beam member 214 second metallic beam members 216 for reinforcing the metal beam member

Claims (10)

A unit for transporting thin plate panels used for stacking and transporting a plurality of rectangular thin plate panels,
Each is provided with a plurality of sets of four corner members that support each corner of the rectangular thin plate panel from below,
A pallet for conveyance having an upper surface on which a set of the corner material at the bottom is placed when stacking a plurality of rectangular thin plate panels in the vertical direction by stacking the corner materials in a columnar shape in the vertical direction at each corner. When,
A pair of fixed buffer spacers respectively provided along opposing edges of the rectangular thin plate panel supported by the corner member from below at each corner;
Each of the pair of buffer spacers includes a main body portion and a positioning portion that is formed outside the main body portion and suppresses relative horizontal movement between the buffer spacers adjacent in the vertical direction.
In the lower part of the main body portion, stacked rectangular thin plate panels adjacent in the vertical direction,
It has a mounting lower surface to be mounted on the upper surface of the lower rectangular thin panel, and has an abutting upper surface capable of contacting the lower surface of the upper rectangular thin panel on the upper portion,
The positioning portion has a portion that can be engaged with each other in the buffer spacers adjacent in the vertical direction, and between the lower surface of the positioning portion of the upper buffer spacer and the upper surface of the positioning portion of the lower buffer spacer. A unit for transporting a thin plate panel, wherein a predetermined clearance is provided. The engageable portion includes a convex portion that protrudes from the upper surface or the lower surface of the positioning portion, and a concave portion that can be fitted into the convex portion and that is recessed from the lower surface or the upper surface of the positioning portion. The height of the convex part and / or the concave part is adjusted so that a predetermined clearance is provided between the top part of the convex part and the bottom part of the concave part during fitting. Unit for transporting thin plate panels. Each of the pair of buffer spacers is disposed at a central portion of a long side of the rectangular thin plate panel, and the contact upper surface corresponds to a lower surface of the rectangular thin plate panel when the rectangular thin plate panels are stacked. The unit for transporting a thin plate panel according to claim 1, wherein the height of the pair is adjusted. The recessed portion has a bottom surface and an inner surface extending between the bottom surface and the upper surface or the lower surface, and extends to the outer surface side opposite to the main body portion, and the convex portion has a top surface, The unit for transporting a thin panel according to claim 2, further comprising an outer surface extending to the outer surface side opposite to the main body and extending between the top surface and the upper surface or the lower surface. The buffer spacer is a rectangular parallelepiped, and the upper surface is provided with a step portion extending over the long side direction,
The contact upper surface extends from the inner surface of the main body to the stepped portion, the top surface has a rectangular shape provided on the upper surface, and the outer surface extends to the stepped portion in the short side direction, First and second outer surfaces facing each other, and a third outer surface formed between the first and second side surfaces in the stepped portion,
The top surface has a shape complementary to the bottom surface, and the inner side surfaces extend to the step portion in the short side direction, respectively, and the first and second inner side surfaces facing each other, and the first and second inner surfaces at the step portion. A third inner surface formed between the two inner surfaces,
The thin plate panel transport unit according to claim 4, which suppresses relative horizontal movement in the long side direction and short side direction of the thin plate panel between the buffer spacers adjacent in the vertical direction. 2. The thin plate according to claim 1, wherein the buffer spacer is made of a solid foam-molded resin, and a foaming ratio is determined so as to buffer the vibration applied to the rectangular thin panel when the rectangular thin panel is conveyed. Panel transport unit. The rectangular thin plate panel transport unit according to claim 1, wherein the rectangular thin plate panel is a solar panel, and the predetermined clearance is 5 mm or more. The buffer spacer is provided with a concave portion extending in the vertical direction on the outer surface thereof, and a plurality of the concave portions form a belt fixing portion by aligning and stacking the buffer spacers. The conveyance unit of the thin panel of Claim 1. A unit for transporting thin plate panels used for stacking and transporting a plurality of rectangular thin plate panels,
Each is provided with a plurality of sets of four corner members that support each corner of the rectangular thin plate panel from below,
A pallet for conveyance having an upper surface on which a set of the corner material at the bottom is placed when stacking a plurality of rectangular thin plate panels in the vertical direction by stacking the corner materials in a columnar shape in the vertical direction at each corner. When,
A pair of fixed buffer spacers respectively provided along opposing edges of the rectangular thin plate panel supported by the corner member from below at each corner;
Each of the pair of buffer spacers includes a main body portion and a positioning portion that is formed outside the main body portion and suppresses relative horizontal movement between the buffer spacers adjacent in the vertical direction.
The main body portion has a sandwiching support portion for sandwiching and supporting a rectangular thin plate panel,
The positioning portion has a portion that can be engaged with each other in the buffer spacers adjacent in the vertical direction, and between the lower surface of the positioning portion of the upper buffer spacer and the upper surface of the positioning portion of the lower buffer spacer. A unit for transporting a thin plate panel, wherein a predetermined clearance is provided. The sandwiching support portion is formed by a long groove provided on the inner side surface of the main body portion along the longitudinal direction of the inner surface, and the width of the long groove is set according to the thickness of the rectangular thin panel to be sandwiched and supported. The conveyance unit of a thin plate panel according to claim 9 .

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