JP2009149340A - Foldable pallet for cargo work - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance safety and prevent the occurrence of a scratch when folded pallets for cargo work are stack in a parallel-cross form. <P>SOLUTION: This pallet for the cargo work includes a load bearing platform 1 in a planar shape, and a surrounding panel 2 which can be folded in such a manner as to be stacked on the load bearing platform 1. The load bearing platform 1 is constituted by a frame structure 12 and a mesh structure 13 which is laid on the frame structure 12. The frame structure 12 is equipped with two short side directional frame materials 14a and 14b which are located along the short side of the load bearing platform 1, and long side directional frame materials 15a and 15b for connecting both longitudinal ends of both the short side directional frame materials 14a and 14b together. Leg bodies 17 are mounted on below both the longitudinal ends of both the short side directional frame materials 14a and 14b, respectively. A square pipe material is used for the long side directional frame materials 15a and 15b. A recessed groove portion 23, which has such a cross-sectional shape as to be depressed more deeply toward the central side in its width direction, is formed along the length direction of the frame material in the bottom plate portion 22 of the square pipe material. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a foldable cargo handling pallet including a load support base having a rectangular planar shape and a peripheral panel that can be folded over the load support base.

In this type of foldable cargo handling pallet, as described in Patent Document 1, the load support base is composed of a frame structure and a mesh structure laid on the frame structure. The frame structure includes two short-side direction frame members positioned along the short side of the load support base, and a long-side direction frame member that connects both ends in the length direction of both short-side direction frame members. A leg is attached to the lower side of both end portions in the length direction of the short side direction frame members. Therefore, when this type of pallet is to be transported by truck, when stacking pallets folded so that the surrounding panels are stacked on the load support table, the orientation of the load support table so that the long sides of the load support table are alternately orthogonal to each other. It is possible to stack wells while changing the degree.
JP 2006-193200 A

  That is, in this type of foldable cargo handling pallet, the upper foldable pallet has a leg on the short side of the load support base that protrudes outward from the long side of the load support base of the lower fold pallet. By stacking the girder so that the lower folding pallet is sandwiched between the legs of the pallet, the loading efficiency on the truck bed can be improved, but the peripheral panel of the pallet is composed of wire rods arranged in a grid pattern. Therefore, in the above-described crossed-up state, the long side frame material in the frame structure of the load support base of the upper folding pallet is in the direction parallel to the long side frame material among the wire rods of the panel of the lower folding pallet. There is a case to get on a part of the wire. When such a situation occurs, when the long side direction frame material in the frame structure of the load support base is simply composed of a square pipe material, the upper folding pallet is placed through the bottom surface of the flat square pipe material. Since it is supported by the wire rods of the panel of the lower folding pallet, the upper folding pallet can easily slide to the short side of the load support base of the upper folding pallet due to vibration and shaking during transportation. However, not only does it cause a collapse of the load, making it impossible to transport safely, but a conspicuous scratch is likely to occur on the bottom surface of the square pipe material, and there is a risk that the commercial value may be lowered to the extent that it cannot be ignored.

  An object of the present invention is to provide a foldable cargo handling pallet capable of solving the conventional problems as described above, and the foldable cargo handling pallet according to claim 1 will be described later. The embodiment is provided with a reference numeral, and includes a load support base 1 having a rectangular planar shape and a peripheral panel 2 that can be folded over the load support base 1, and the load support base 1 includes a frame. The frame structure 12 is composed of a structure 12 and a mesh structure 13 laid on the structure 12, and the frame structure 12 includes two short-side frame members 14a and 14b positioned along the short side of the load support base 1. , Long side direction frame members 15a, 15b that connect both end portions in the length direction of both short side direction frame members 14a, 14b, and at both ends in the length direction of both short side direction frame members 14a, 14b. For cargo handling with legs 17 attached to the lower side In the let, a square pipe material is used for the long side direction frame members 15a and 15b, and a concave groove portion 23 having a cross-sectional shape that penetrates deeper toward the center side in the width direction is formed on the bottom plate portion 22 of the square pipe material. It is the structure formed along the length direction.

  The long side direction frame members 15a and 15b in the present invention, that is, the long side direction frame members 15a and 15b made of a square pipe material are positions where both ends of the short side direction frame members 14a and 14b are connected to each other. In addition to the long side direction frame members 15a and 15b, for example, the central long side direction for connecting the central portions in the length direction of the short side direction frame members 14a and 14b. The frame member 16 can be provided, and the structure of the central long side direction frame member 16 in that case is not limited. In addition, the long side direction frame members 15a and 15b in the present invention can be provided at both ends of each of the short side direction frame members 14a and 14b. Two frames can be provided at both ends of the frame members 14a and 14b.

  Thus, when the present invention is implemented, specifically, as described in claim 2, the rectangular pipe member constituting the long side direction frame members 15a and 15b has a rectangular cross section having a width larger than the height. The square pipe material can be used. In this case, as described in claim 3, the leg body 17 is provided below the columnar body 18 having a width substantially equal to the width of the rectangular pipe member of the rectangular cross section constituting the long side direction frame members 15a and 15b. A grounding plate 19 is attached, and the legs 17 are arranged on both sides of the columnar body 18 below the T-shaped connecting portion between the short side direction frame members 14a and 14b and the long side direction frame members 15a and 15b. And the long side direction frame members 15a and 15b can be fixed in a state where the both side sides substantially coincide with each other. Further, in this case, as described in claim 4, the processing of the concave groove portion 23 with respect to the bottom plate portion 22 of the rectangular pipe member of the rectangular cross section constituting the long side direction frame members 15 a, 15 b is performed on the legs 17 at both ends thereof. Can be continuously applied to the entire intermediate region excluding the mounting region.

  Further, as described in claim 5, among the frame members 14a to 16 constituting the frame structure 12, all the frame members except for the long side direction frame members 15a and 15b have a height of the length. A square pipe member having a square cross section equal to the height of the rectangular pipe member constituting the side direction frame members 15a and 15b can be used.

  According to the foldable cargo handling pallet according to the first aspect of the present invention, when the pallet folded so as to overlap the surrounding panel on the load support base is stacked as described above, The situation in which the long side frame material in the frame structure of the load pallet of the folding pallet rides on a part of the wire material of the lower folding pallet panel in the direction parallel to the long side direction frame material. Even if it becomes, a part of the wire on the lower folding pallet side will be fitted in the concave groove part of the bottom plate part of the square pipe material which is the long side frame material on the upper folding pallet side. The upper folding pallet is positioned with respect to the pallet with respect to the short side direction of the load support base in the upper folding pallet, and the lower folding pallet is moved by vibration and shaking during transportation. Thus, the upper folding pallet can be prevented from slipping easily in the short side direction of the load support base of the upper folding pallet, and can be transported safely while preventing the collapse of the load. It is also possible to prevent a noticeable scratch on the bottom surface of the long side direction frame member.

  In addition, according to the structure of Claim 2, the said long side direction frame important for transmitting the load which acts on the mesh structure which comprises a load support stand to the short side direction frame material provided with the leg body. The rigidity of the material can be increased without increasing the number of the long side direction frame members, so that weight reduction and load resistance performance can be improved. In this case, the bottom surface of the square pipe material constituting the long side direction frame material becomes wide, and the risk of skidding of the upper folding pallet when the girder is piled up is increased. The increase in the risk of skidding can be suppressed.

  When adopting the configuration according to claim 2, according to the configuration according to claim 3, it is possible to facilitate the attachment of the leg using the wide frame material in the long side and the attachment strength of the leg. Can also be increased. Further, the load acting on the frame structure can be efficiently transmitted from the long side direction frame member to the leg body, and the load resistance performance can be enhanced. Furthermore, according to the structure of Claim 4, the welding length between the columnar body of a leg and a long side direction frame material is carried out by the ditch | groove process with respect to the bottom face of a long side direction frame material (square pipe material). It is possible to prevent the length from being shortened and to prevent a reduction in the attachment strength of the leg.

  Furthermore, according to the structure of claim 5, the bottom surface of the load support base can be set at the same level to facilitate the transportation of the pallet by the forklift, and the frame structure of the load support base with two types of square pipe materials. The body can be constructed, and a lightweight and sturdy frame structure can be constructed at low cost.

  A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 1 denotes a load support base having a rectangular planar shape, and 2 denotes a peripheral panel that stands up from the periphery of the load support base 1. . The peripheral panel 2 includes a back panel 3 that stands along one of the long sides (rear side) of the load support base 1, a pair of side panels 4, 5 that stands along both the left and right short sides of the load support base 1, And the gate panel 6 standing along the other long side (front side) of the load support base 1. The back panel 3 is connected to one of the long sides (rear side) of the load support base 1 by a coil hinge 7, and the side panels 4 and 5 are connected to right and left sides of the back panel 3 by coil hinges 8. The gate panel 6 includes a lower panel portion 6a and an upper panel portion 6b connected to the upper side of the lower panel portion 6a by a hinge 9, and is bent at right angles from the lower side to the inner side of the lower panel portion 6a. The front end side of the bent bottom side portion 6 c provided continuously is connected to the load support base 1 by a hinge 10. Further, four gate locking means 11 are provided for locking the left and right sides of the lower panel portion 6a of the gate panel 6 and the left and right sides of the upper panel portion 6b to the vertical front sides of the side panels 4 and 5. ing.

  As shown in FIGS. 3 to 6, the load support base 1 includes a frame structure 12 and a mesh structure 13 laid on the frame structure 12. The frame structure 12 includes a pair of left and right short side direction frame members 14a and 14b arranged along the left and right short sides of the load support base 1, and both end portions (from both ends) of the left and right short side direction frame members 14a and 14b. A single central length connecting the center portions in the longitudinal direction of the pair of front and rear long frame members 15a and 15b and the left and right short side frame members 14a and 14b. It consists of a side direction frame member 16. All the frame members 14a to 16 constituting the frame structure 12 are made of square pipe members having the same height, but all the frame members 14a, 14b, 16 except the long side direction frame members 15a, 15b. A square pipe member having a square cross section is used, and a square pipe member having a rectangular cross section whose width is about twice the height is used for the pair of front and rear long side frame members 15a and 15b. The materials are joined by welding so that the upper side surface and the lower side surface thereof are flush with each other, thereby constituting the frame structure 12.

  Legs 17 are attached to the lower side of the frame structure 12 at both ends of the left and right short side direction frame members 14a and 14b. Each leg 17 is provided with a grounding plate 19 attached to the lower end of a columnar body (square pipe material) 18 having a square cross section having substantially the same width and one side as a pair of front and rear long frame members 15a and 15b. The upper end of the body 18 is located below the T-shaped joint between the short side frame members 14a and 14b and the long side frame members 15a and 15b of the frame structure 12, and the front and rear side surfaces of the columnar body 18 are in the long side direction. The frame members 15a and 15b are fixed by welding so that they are substantially flush with the front and rear side surfaces of the frame members 15a and 15b, and the left and right outer surfaces of the columnar body 18 are substantially flush with the outer surfaces of the short-side frame members 14a and 14b.

  The mesh structure 13 includes a large-diameter short-side wire 20 arranged at appropriate intervals in the long-side direction of the load support table 1 and a long-sided small diameter arranged at appropriate intervals in the short-side direction of the load support table 1. The directional wire 21 is integrated by welding, and all the short-side directional wires 20 except the short-side directional wire 20a at both left and right ends are arranged in the long-side directional frames 15a and 15b of the frame structure 12. It is placed on the central long-side direction frame member 16 and fixed by welding, and the short-side direction wire members 20a at the left and right ends are positioned along the inner side on the upper surface of the short-side direction frame members 14a and 14b of the frame structure 12. And is fixed by welding. Further, of the long-side direction wires 21, all the long-side direction wires 21 except the front-side long-side direction wire 21a are arrayed and fixed on the short-side direction wire 20, and only the front-side long-side direction wire 21a is short. It is fixed to the lower side of the side wires 20 and 20a. Thus, the long-side direction wire members 21a and 21b at both front and rear ends are in positions protruding slightly outward from the front and rear ends of the short-side direction frame members 14a and 14b of the frame structure 12. Further, the intervals in the short side direction of the load support base 1 of the long side direction wire members 21, 21 a, 21 b are not the same, and on the long side direction frame members 15 a, 15 b and the central long side direction frame member 16 of the frame structure 12. Arranged to avoid overlapping areas.

  In the load support base 1 having the above-described configuration, the rectangular cross-section of the rectangular pipes constituting the long side direction frame members 15a and 15b of the frame structure 12 has a bottom plate portion 22 in the center in the width direction as shown in FIG. The groove portion 23 is formed along the length direction by pressing into a cross-sectional shape that penetrates deeper toward the side, for example, a mountain shape (which may be an arc shape). The concave groove 23 may be formed so as to be continuous over the entire area between both ends of the long side direction frame members 15a and 15b. In this embodiment, however, the leg portions at both ends of the long side direction frame members 15a and 15b are used. Concave groove 23 is formed continuously in the entire intermediate region excluding the region where 17 is attached. The left and right short side direction frame members 14a and 14b of the frame structure 12 are arranged on the outer surface in the vicinity of both ends (position slightly inside the leg 17) and on the upper surfaces of the short side direction frame members 14a and 14b. On the other hand, a side panel positioning piece 24 protruding upward is attached. Each side panel positioning piece 24 in this embodiment is obtained by bending a wire rod into an inverted U-shape and fitting both legs into a recess 25 formed on the outer surface of the short side frame members 14a and 14b. By being fixed, the side panel positioning pieces 24 do not protrude laterally from the outer surfaces of the short-side direction frame members 14a and 14b, or the protruding amount is reduced.

  As shown in FIGS. 7 and 8, the back panel 3 has a mesh structure composed of vertical wires 26 arranged at appropriate intervals in the horizontal direction and horizontal wires 27 arranged at appropriate intervals in the vertical direction. The lowermost horizontal wire 27a is connected to the rear-side long-side wire 21b of the mesh structure 13 of the load support base 1 by the coil hinge 7, and is swingable around the long-side wire 21b. It is configured. In addition, the long-side direction wire 21b at the rear end in the mesh structure 13 has a bar-like member 28 for preventing the lowermost horizontal wire 27a of the back panel 3 from falling off to the rear side of the mesh structure 13. The long side direction wire 21b is fixed to the upper side of the long side direction wire 21b in parallel with the long side direction wire 21b at a plurality of locations in the length direction.

  As shown in FIGS. 7 and 9, the left and right side panels 4 and 5 also have a mesh structure composed of vertical wires 29 arranged at appropriate intervals in the front-rear direction and horizontal wires 30 arranged at appropriate intervals in the vertical direction. The vertical wire 29a at the rear end is connected to the vertical wire 26a located on the left and right sides of the back panel 3 by the coil hinge 8, and is configured to be swingable about the vertical wire 26a. Thus, the left and right side panels 4 and 5 located along the left and right sides of the load support base 1 have lower ends on the left and right short side direction frame members 14a of the frame structure 12 in the load support base 1. , 14b is supported by a side panel support surface (a top plate portion of a square pipe member) 31 between the side panel positioning piece 24 and the short-side direction wire 20a at the left and right ends of the mesh structure 13.

  As shown in FIGS. 7 and 8, the upper and lower panel portions 6a and 6b of the gate panel 6 are also composed of vertical wires 32 arranged at appropriate intervals in the horizontal direction and horizontal wires 33 arranged at appropriate intervals in the vertical direction. The lower end portion of each vertical wire member 32 of the lower panel portion 6a is bent inward at a right angle, and left and right on the tip portion and the intermediate portion of the bent portion 32a. The bent wires 6a, 34b are fixed to form a bent bottom portion 6c. Thus, each folding line material portion 32a in the bent bottom side portion 6c is fitted in parallel to the intermediate position of the adjacent short side direction wire 20 of the mesh structure 13 in the load support base 1, and the bent bottom side portion The horizontal wires 34a and 34b in the horizontal direction 6c on 6c ride on the short-side wire 20 of the mesh structure 13, and the horizontal wires 34a located on the tip side of the bent bottom portion 6c are loaded. A hinge 10 is connected to the upper surface of the long side direction frame member 15a on the front side of the frame structure 12 in the support base 1 (the top plate portion of the rectangular pipe member having a rectangular cross section). The hinge 10 is formed by bending a plate material into an inverted U-shape and providing a notch that fits in the short-side direction wire 20 of the mesh structure 13 at the center of the lower side of both leg plate portions. The both leg plate portions are arranged at a total of three positions including the positions near both ends of the left and right horizontal wire 34a located at the tip side of the bottom portion 6c and one middle portion, and fitted to the left and right horizontal wire 34a from above. The lower side is welded to the upper surface of the long side direction frame member 15 a on the front side of the frame structure 12.

  Thus, the lower panel portion 6a of the gate panel 6 is tilted forward from the posture standing along the front side of the load support base 1, and the bent bottom portion 6c is a mesh structure of the load support base 1. 13, and the rear side can be rotated around the horizontal horizontal wire 34 a located at the front end side of the bent bottom portion 6 c, but the left and right sides of the gate panel 6 can be rotated. Inside the both sides are the front sides of the left and right side panels 4, 5 standing along the left and right sides of the load support base 1, and gate panels are located on the front sides of the left and right side panels 4, 5. The left and right side panels 4 and 5 and the gate panel 6 are locked by the gate locking means 11 in a state where the left and right sides of 6 are adjacent to each other, and the peripheral panel 2 of the load support base 1 is assembled. Since each gate locking means 11 is well known in the art, description thereof is omitted.

  In the cargo handling pallet having the above-described configuration, loading and unloading with respect to the load storage space on the load support base 1 surrounded by the peripheral panel 2 is performed by releasing the pair of gate locking means 11 on the upper left and right sides of the gate panel 6. Only the part 6b can be moved forward around the hinge 9, and the upper half of the gate panel 6 can be opened. The pallet in a state in which the peripheral panel 2 is assembled uses a pair of front and rear legs 17 positioned on the left and right sides of the upper pallet, and a stacking recess 19a formed on the ground plate 19 as is well known in the art. Then, it can be stacked by being fitted to the upper sides of the left and right side panels 4, 5 of the lower pallet.

  The pallet that is not used can be folded down so that the peripheral panel 2 is stacked on the load support base 1 to reduce the height. That is, the release operation is performed on all the gate locking means 11 on both the left and right sides of the gate panel 6, and the upper panel portion 6b is opened forward and downward as described above. Next, the left and right side panels 4 and 5 are moved outward. The lower sides of the left and right side panels 4 and 5 are frame structures in the load support base 1 as shown in the right half of FIG. The side panel support surface (the top plate portion of the square pipe member) between the side panel positioning piece 24 and the short side direction wire 20a at the left and right ends of the mesh structure 13 on the upper surfaces of the twelve left and right short side direction frame members 14a and 14b. ), The back panel 3 is slightly tilted rearward around the coil hinge 7 so that the left and right side panels 4 and 5 interfere with the side panel positioning pieces 24 as shown in the left half of FIG. Lift to a level where you don't. In this state, the left and right side panels 4 and 5 are rotated outward and rearward around the coil hinge 8 and are alternately stacked on the back side of the back panel 3. Then, the back panel 3 and the left and right side panels 4, 5 stacked on the back side are integrated together, turned forward around the coil hinge 7, and stacked on the load support 1. Finally, the lower panel portion 6a of the gate panel 6 is turned around the hinge 10 toward the load support base 1, and the upper panel portion 6b is also deployed around the hinge 9 with respect to the lower panel portion 6a. The entire panel 6 is folded so as to cover the load support base 1. At this time, the bent bottom side portion 6c of the lower panel portion 6a of the gate panel 6 is in an upright state with respect to the load supporting base 1. Due to the presence of the bent bottom side portion 6c, the gate panel 6 first supports the load. It can be comfortably covered on the back panel 3 and the left and right side panels 4 and 5 stacked on the table 1.

  The pallet folded as described above has a peripheral panel 2 (back panel 3, left and right side panels 4, 5, and gate panel 6) folded so as to be stacked on the load support base 1. As shown in FIG. 3, the load supporting base 1 is in a rectangular shape as shown in FIG. 3, and the length between the legs 17 on both sides in the long side direction is larger than the length in the short side direction. Therefore, when stacking the folding pallets, the direction of the long side direction of the load support base 1 is alternately changed by 90 degrees, and the legs 17 on both sides in the long side direction of the upper folding pallet support the load of the lower folding pallet directly below. To be located on both outer sides in the short side direction of the table 1. Can be stacked in a cross-beam shape. When this girder stacking is performed, as shown in FIG. 10, the legs 17 of each folding pallet are not supported by the lower folding pallet except for the lowermost folding pallet, and the lower side of the load support base 1 of the upper folding pallet. That is, the bottom surface of each frame member (square pipe member) constituting the frame structure 12 is overlaid on the peripheral panel 2, specifically the uppermost layer, folded on the load support base 1 of the lower folding pallet directly below. The gate panel 6 is supported.

  More specifically, when the folding pallets are stacked as described above, the short-side frame members 14a and 14b constituting the frame structure 12 of the load support base 1 of the upper folding pallet together with the legs 17 are arranged in the lower stage. The long side direction frame members 15a and 15b and the central long side direction frame member 16 that project outside the short side direction of the load support base 1 of the folding pallet and constitute the frame structure 12 of the load support base 1 of the upper folding pallet. Only the gate panel 6 folded on the load support 1 of the lower folding pallet is supported by the gate panel 6 (the lower panel portion 6a and the upper panel portion 6b). Due to the relationship with the structure of the means 11, a vertical wire 32 is disposed outside the horizontal wire 33 as shown in FIG. 8, and the gate panel 6 is folded onto the load support 1. The vertical wire 32 that has fallen in a substantially horizontal direction due to the vertical direction, and the long side direction frame members 15a and 15b and the central long side direction frame member 16 constituting the frame structure 12 of the load support base 1 of the upper folding pallet are parallel to each other. Therefore, all or a part of the long side direction frame members 15a, 15b and the central long side direction frame member 16 on the load support base 1 side of the upper folding pallet lie down almost horizontally on the gate panel 6 of the lower folding pallet. The state is supported by the vertical wire 32.

  Even if the gate panel 6 (the lower panel portion 6a and the upper panel portion 6b) is configured by arranging the horizontal wire 33 on the outside of the vertical wire 32, the gate panel when folded on the load support base 1. 6 is the width of the bent bottom side portion 6c (height when folded) so that the bent corner portion of each vertical wire 32 constituting the bent bottom side portion 6c of the lower panel portion 6a is the highest. Since it is usually configured with a margin, the length of the upper folding pallet on the load support base 1 side is determined by at least the bent corners of the vertical wires 32 constituting the bent bottom side 6c of the lower panel 6a. There is a high possibility that all or part of the side direction frame members 15a and 15b and the central long side direction frame member 16 are supported. Further, the long side direction frame members 15a and 15b of the load support base 1 of the upper folding pallet are twice as wide as the central long side direction frame material 16, so that the long side direction frame members 15a and 15b. Is very likely to be supported by the bent corners of each vertical wire 32 constituting the bent bottom side 6c of the lower panel 6a of the gate panel 6. Thus, in such a situation, since the concave groove portion 23 is formed on the bottom surface of the long side direction frame members 15a and 15b, the long side direction frame members 15a and 15b are supported. The vertical wire rod 32 or the bent corner portion of each vertical wire rod 32 constituting the bent bottom side portion 6c of the gate panel 6 of the lower folding pallet is fitted into the groove 23.

  Of course, the central long side direction frame member 16 of the load support base 1 of the upper folding pallet is also the vertical wire member 32 or the vertical wire members 32 constituting the bent bottom side portion 6c of the gate panel 6 of the lower folding pallet. However, even in such a situation, since the central long side direction frame member 16 is at the center position of the load support base 1, the load support base of the upper folding pallet is provided. 1 is a seesaw motion with a contact point between the central long side frame member 16 and the wire on the gate panel 6 side of the lower folding pallet as a fulcrum, and either one of the long side frame members 15a and 15b is folded lower. Since it is supported by the wire on the gate panel 6 side of the pallet, as a result, the gate panel of the lower folding pallet with respect to the concave groove 23 on at least one bottom surface of the long side direction frame members 15a and 15b. Folding the corners of each vertical wire 32 constituting the vertical wire 32 or the folding base unit 6c has fallen is to fit in a generally horizontal orientation of.

  Therefore, when the folding pallets are stacked as described above, the upper folding pallet is positioned in the short side direction of the load supporting base 1 of the upper folding pallet (the long side of the load supporting base 1 of the lower folding pallet). The side sliding in the direction) is due to the fitting between the concave groove portion 23 on the upper folding pallet side and the bent corner portion of each vertical wire 32 constituting the vertical wire rod 32 or the folding bottom side portion 6c on the lower folding pallet side. Be blocked. Of course, when the bent corner portion of each vertical wire 32 constituting the bottom folding pallet side 6c or the vertical wire rod 32 on the lower folding pallet side is not fitted to the deepest portion of the concave groove portion 23 on the upper folding pallet side, The upper folding pallet slides slightly with respect to the lower folding pallet due to vibration, vibration, and load during transportation in the cross-girder state, and the vertical wire 32 or folding on the lower folding pallet side is deepest in the groove 23. There is a possibility that the bent corner portion of each vertical wire 32 constituting the bent bottom side portion 6c is automatically automatically aligned.

  In any case, since the concave groove portion 23 is formed along the length direction of the frame member on the bottom surface of the long side direction frame members 15a and 15b constituting the frame structure 12 of the load support base 1, the frame member Compared with the case where the bottom surface remains flat, when transporting the folding pallet in a cross-stacked state, the upper folding pallet repeatedly slides against the lower folding pallet due to vibration or shaking, causing the collapse of the load. Inconveniences such as conspicuous scratches on the bottom surfaces of the side direction frame members 15a and 15b are eliminated.

  In addition, in the said embodiment, as a frame material which comprises the frame structure 12 of the load support stand 1, in addition to the long side direction frame materials 15a and 15b which connect the both ends of short side direction frame materials 14a and 14b, Since the central long side direction frame member 16 is provided, the concave groove portion 23 may be formed also on the bottom surface of the central long side direction frame member 16. Also, as long side direction frame members that connect both ends of the short side direction frame members 14a, 14b, when providing two long side direction frame members at intervals that sandwich the columnar body 18 of the legs 17, What is necessary is just to form the concave-groove part 23 in the bottom face of each of these two long side direction frame materials.

  In the above embodiment, the bent bottom 6c is provided on the gate panel 6 (lower panel 6a) side, the left and right side panels 4 and 5 are folded to the back side of the back panel 3, and the gate panel 6 is at the top. Although the pallet provided with the outer folding type peripheral panel 2 is shown to be folded, the bottom side of the folding is provided on the back panel 3 side, and the left and right side panels 4 and 5 are folded inside the back panel 3. It can also be implemented as a pallet provided with a peripheral panel 2 of the inner fold type that is folded so that the back panel 3 is at the top. When the inner fold type peripheral panel 2 is employed, the side panel positioning pieces 24 attached to the outer side surfaces of the short-side direction frame members 14a and 14b of the load support base 1 are used for folding using the legs 17. An empty pallet stacking support for supporting the upper folding pallet legs 17 for stacking pallets can be attached.

It is a perspective view which shows the whole cargo handling pallet which can be folded. It is a schematic longitudinal side view of a pallet same as the above. It is a partially notched top view of a load support stand. Fig. A is a front view of the load support table, Fig. B is a bottom view of the intermediate region of the load support table omitted, and Fig. C is an enlarged longitudinal sectional view of a long side frame material constituting the load support table. It is a side view of a load support stand. It is an enlarged vertical front view of the principal part of a load support stand. It is a cross-sectional top view of a pallet principal part. It is a vertical side view of the pallet principal part. It is a front view of the pallet principal part in the state where a gate panel was omitted. It is a schematic front view which shows the state which piled up the folding pallet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Load support stand 2 Peripheral panel 3 Back panel 4, 5 Side panel 6 Gate panel 6a Lower panel part 6b Upper panel part 6c Bending base part 7-10 of a lower panel part Hinge 11 Gate latching means 12 Load support stand Frame structure 13 Load support platform mesh structure 14a, 14b Frame structure short side frame member 15a, 15b Frame structure long side frame member 16 Frame structure central long side frame member 17 Leg body 20, 20a, 21, 21a, 21b, 26, 26a, 27, 27a, 29, 29a, 30, 32, 33, 34a, 34b Wire rod 22 Bottom plate portion of square pipe member 23 Concave groove portion 24 Side panel positioning piece 31 Side panel Support surface (top plate of square pipe material)
32a Folded curve part

Claims (5)

  A load support base having a rectangular planar shape and a peripheral panel that can be folded over the load support base, the load support base is composed of a frame structure and a mesh structure laid on the frame structure. The frame structure includes a long side direction frame that connects two short side direction frame members positioned along the short side of the load support table and both ends in the length direction of both short side direction frame members. And a cargo handling pallet in which legs are attached to the lower sides of both ends in the length direction of both of the short side direction frame members, a square pipe material is used for the long side direction frame material, A collapsible cargo handling pallet in which a concave groove portion having a cross-sectional shape that penetrates deeper toward the center side in the width direction is formed in the bottom plate portion of the square pipe material along the frame material length direction.   The foldable cargo handling pallet according to claim 1, wherein a rectangular pipe member having a rectangular cross section larger in width than the rectangular pipe member constituting the long side direction frame member is used.   The leg is configured by attaching a grounding plate to a lower side of a columnar body having a width substantially equal to a width of a rectangular pipe member having a rectangular cross section constituting the long side direction frame member, and the leg is configured by the short side direction frame. The lower side of the T-shaped coupling portion between the material and the long side direction frame material is fixed in a state where both side sides of the columnar body and both side sides of the long side direction frame material substantially coincide with each other. Foldable cargo handling pallet as described.   The processing of the concave groove portion with respect to the bottom plate portion of the rectangular pipe having the rectangular cross section constituting the long side direction frame member is continuously applied to the entire intermediate region excluding the attachment regions of the leg bodies at both ends thereof. Foldable pallet for cargo handling as described in 1.   Of the frame members constituting the frame structure, all the frame members except the long side direction frame member have a square whose height is equal to the height of the rectangular pipe of the rectangular cross section constituting the long side direction frame member. The foldable cargo handling pallet according to any one of claims 1 to 4, wherein a square pipe member having a cross section is used.

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