Loading rack fixing jig

Abstract

To provide a rack fixing jig capable of stably fixing loading racks together with a simple structure.SOLUTION: A rack fixing jig 60 comprises: a first engagement portion 61 that engages from above with a first engaged portion 24A provided on a side surface of a first loading rack 1A; a second engagement portion 62 that engages from above with a second engaged portion 24B provided on a side surface of a second loading rack 1B adjacent to the first loading rack; and a connecting portion 63 that connects the first engagement portion and the second engagement portion. The first engagement portion 61 and the second engagement portion 62 are arranged at intervals in a direction of alignment of the loading racks 1. The first engagement portion 61 engages with the first engaged portion 24A on a first side surface of the first loading rack 1A, and the second engagement portion 62 engages with the second engaged portion 24B provided on a second side surface of the second loading rack 1B, which is on the first side surface side of the first loading rack among the side surfaces of the second loading rack. The connecting portion 63 protrudes outward from the side surface of the loading rack 1 to form a scaffold step.SELECTED DRAWING: Figure 6

Description

[Technical Field]

[0001] The present invention relates to a loading rack fixing jig, and more particularly to a loading rack fixing jig for fixing together a plurality of loading racks on which construction materials are loaded. [Background technology]

[0002] BACKGROUND ART Loading racks capable of loading building panels and wooden construction materials manufactured in factories for transporting these building panels and construction materials are known (see, for example, Patent Documents 1 and 2). To explain the specific loading and transportation methods, first, building panels and construction materials removed from the factory production line are stored in the factory in a flat-stacked state on loading racks. At this time, the construction materials are often collected on pallets and secured with bands or the like before being stacked flat. Then, they are loaded flat onto the loading racks by truck or other means and transported to the construction site. The transported building panels and construction materials are unloaded by a tow truck or other vehicle installed at the construction site and stored there. The loading racks are then returned to the factory. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-89567 [Patent Document 2] Japanese Patent Publication No. 2024-007861 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in the loading racks as disclosed in Patent Documents 1 and 2, there has been a demand for a simple configuration that allows the loading racks to be stably fixed to each other. Furthermore, there was a demand for technology that would enable multiple loading racks to be secured together when lined up in order to transport them stably by truck or the like. In addition, recent legal reforms have relaxed restrictions on the loading capacity of automobiles (trucks), increasing the limits on the dimensions that can be loaded. While these legal reforms have made it possible to transport multiple loading racks loaded with construction materials, there has also been a need for technology that allows loading racks to be transported stably while adjacent to each other on the truck bed.

[0005] An object of the present invention is to provide a loading rack fixing jig that has a simple configuration and is capable of stably fixing loading racks to each other. Another object of the present invention is to provide a loading rack fixing jig that can fix a plurality of loading racks in a lined up state so that they can be transported stably by truck or the like. [Means for solving the problem]

[0006] The above problem is solved by the loading rack fixing jig of the present invention, which is a loading rack fixing jig that fixes multiple loading racks loaded with construction materials together when the loading racks are lined up, and which includes a first engaging portion that engages from above with a first engaged portion provided on a side surface of a first loading rack, a second engaging portion that engages from above with a second engaged portion provided on a side surface of a second loading rack adjacent to the first loading rack, and a connecting portion that connects an upper portion of the first engaging portion and an upper portion of the second engaging portion, wherein the first engaging portion and the second engaging portion are arranged at intervals in the arranging direction of the loading racks, the first engaging portion engages with the first engaged portion provided on the first side surface of the first loading rack, and the second engaging portion engages with the second engaged portion provided on a second side surface of the second loading rack that is closer to the first side surface of the first loading rack, and the connecting portion protrudes outward from the side surface of the loading rack. With the above configuration, it is possible to realize a loading rack fixing jig that can stably fix loading racks to each other with a simple configuration. More specifically, with the above-described loading rack fixing jig, the loading racks can be fixed together by utilizing a first engaged portion provided on the side of a first loading rack and a second engaged portion provided on the side of a second loading rack adjacent to the first loading rack. This makes it possible to transport multiple loading racks stably by truck or the like. In addition, the loading rack fixing jig (connecting part) can also be used as a foothold for workers, allowing for efficient loading of construction materials and putting truck covers on loading racks on trucks.

[0007] In this case, the loading rack fixing jig is used when the loading racks are transported by truck while fixed together, and the connecting portion protrudes outward from the side of the loading rack to form a scaffolding step, and when the loading rack fixing jig fixes the loading racks together, the first engaging portion engages with the first engaged portion from above while abutting against the first side surface of the first loading rack, and the second engaging portion engages with the second engaged portion from above while abutting against the second side surface of the second loading rack, and the connecting portion extends so as to span the first side surface and the second side surface in the arrangement direction of the loading racks. With the above configuration, the loading rack fixing jig can be more stably attached to the first loading rack and the second loading rack, and the loading rack fixing jig can be used as a scaffolding step.

[0008] In this case, the loading rack fixing jig is used when transporting the loading rack secured by the cargo securing members, and the cargo securing members can be supported by abutting them from below with the connecting portion or by wrapping them around the connecting portion. With the above configuration, when multiple loading racks are lined up and loaded on the truck bed and the loading racks are fastened with cargo securing members (cargo securing belts), the connecting portions can be used to suitably support the cargo securing members. In other words, the cargo securing members can be attached to the jig that fastens the loading racks together.

[0009] In this case, the rack is provided with a first reinforcing wall portion that connects the first engagement portion and the connecting portion and protrudes toward the outside of the loading rack along the connecting portion, and a second reinforcing wall portion that connects the second engagement portion and the connecting portion and protrudes toward the outside of the loading rack along the connecting portion, and the first reinforcing wall portion and the second reinforcing wall portion each have a closed cross-sectional structure and are arranged at a predetermined interval to support the connecting portion from below. The above-mentioned configuration can increase the rigidity of the loading rack fixing jig. In particular, the first reinforcing wall portion and the second reinforcing wall portion can form a strong scaffolding step.

[0010] In this case, the connecting portion is provided with a third engaging portion that is provided so as to protrude outward from the loading rack more than the first engaging portion, extends in a direction perpendicular to the engaging direction of the first engaging portion and the outward direction of the loading rack, and is engageable with the first engaged portion of the first loading rack, and a fourth engaging portion that is provided at an interval from the third engaging portion in the extending direction of the third engaging portion, is arranged side by side with the third engaging portion, and is engageable with the first engaged portion of the first loading rack, and the third engaging portion and the fourth engaging portion are respectively attached to the side surfaces of the first loading rack at upper and lower positions. The loading rack fixing jig is switchable between a first fixed position in which the first loading rack and the second loading rack are fixed to each other, and a second fixed position in which the loading rack fixing jig is attached to the first loading rack, and when the loading rack fixing jig is in the second fixed position, the third engaging portion and the fourth engaging portion are engaged with the first engaged portions which are located at different positions in the vertical direction, and the first engaging portion and the second engaging portion each extend toward the inside of the first loading rack. With the above configuration, the loading rack fixing jig can be suitably stored by switching the loading rack fixing jig from the "first fixing position" to the "second fixing position." For example, the loading rack fixing jig can be assembled only to the first loading rack, and the loading rack fixing jig can be stored in the assembled state to the first loading rack.

[0011] In this case, the first engaging portion and the second engaging portion are engaging protrusions extending downward from the connecting portion, and are preferably formed so as to become narrower as they move from the connecting portion side toward the tip end, and have an inverted tapered shape. With the above configuration, even if the distance between the first loading rack (first engaged portion) and the second loading rack (second engaged portion) is slightly different from the specified distance, the racks can be fixed to each other (engaged with each engaged portion).

[0012] In this case, the connecting portion has a first connecting portion attached to the upper end of the first engagement portion and protruding toward the outside of the loading rack, and a second connecting portion attached to the upper end of the second engagement portion and protruding toward the outside of the loading rack, and the first connecting portion and the second connecting portion each extend along the arrangement direction of the loading rack, and the extension portion of the first connecting portion and the extension portion of the second connecting portion are connected to each other in a state where they overlap vertically, and the horizontal position can be adjusted within the range of the vertical overlap. With the above configuration, the horizontal positions of the first engaging portion and the second engaging portion can be adjusted to correspond to the distance between the first loading rack (first engaged portion) and the second loading rack (second engaged portion), resulting in a loading rack fixing jig that can be suitably engaged. [Effects of the Invention]

[0013] According to the loading rack fixing jig of the present invention, loading racks can be stably fixed to each other with a simple configuration. Furthermore, in order to transport the load racks stably by truck or the like, it is possible to fix the load racks in a state where they are lined up (the load racks are adjacent to each other). [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 2 is a perspective view of the loading rack and the rack fixing jig of the present embodiment. [Figure 2] FIG. 2 is an exploded perspective view of a base member and a support member. [Figure 3]FIG. 2 is an assembly diagram of the base member and the support member, showing an enlarged view of the main part. [Figure 4] FIG. 10 is an exploded perspective view of a support member, a connecting member, and a receiving member; [Figure 5] FIG. 2 is an exploded perspective view of a connecting member and an intermediate support member. [Figure 6] FIG. 2 is an exploded perspective view of the support member and the rack fixing jig. [Figure 7] FIG. 10 is an exploded perspective view of the support member and the rack fixing jig as viewed from a different angle. [Figure 8] FIG. 10 is a diagram showing a state in which a loading rack with a rack fixing jig is being transported by a truck. [Figure 9A] FIG. 10 is a diagram showing a state in which the cargo securing member is supported by the rack fixing jig. [Figure 9B] FIG. 10 is a diagram showing the state in which the cargo securing member is wrapped around the rack fixing jig. [Figure 10] FIG. 10 is a perspective view of the rack fixing jig of the second embodiment, showing a "first fixing position." [Figure 11] FIG. 10 is a perspective view of the rack fixing jig of the second embodiment, showing a "second fixing position." [Figure 12] FIG. 10 is a perspective view of a rack fixing jig according to a third embodiment. [Figure 13] FIG. 10 is a perspective view of a rack fixing jig according to a fourth embodiment. [Figure 14] FIG. 10 is a cross-sectional view of a rack fixing jig according to a fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, an embodiment of the present invention will be described with reference to FIGS. This embodiment relates to a "loading rack fixing jig" that can stably fix loading racks to each other with a simple configuration. In the following description, the "loading rack fixing jig" will also be referred to as the "rack fixing jig."

[0016] 1, the loading rack 1 of this embodiment is a rack that can transport a plurality of plate-shaped building components 2 loaded thereon. For example, it is used to stack the building components 2 flat in a factory and transport the stacked building components 2 from the factory to a construction site by truck. As shown in FIG. 1, a first loading rack 1A and a second loading rack 1B are arranged side by side adjacent to each other, and the first loading rack 1A and the second loading rack 1B are fixed by a plurality of rack fixing jigs 60. Specifically, the rack fixing jigs 60 are arranged at intervals in the vertical direction and are attached to both ends of the loading racks 1A and 1B in the length direction. The rack fixing jig 60 has a function of fixing (connecting) the loading racks 1A, 1B to each other, and a function as a foothold step for workers after being attached to the loading racks 1A, 1B.

[0017] The building components 2 are plate-like components used in various buildings, and include building panels such as exterior wall panels, roof panels, and waist wall panels, as well as wooden construction components, etc. The building components 2 are also called current goods. When architectural panels are loaded as the building components 2, they are placed at a predetermined interval in the vertical direction so as not to damage the finishing surface material, and when wooden construction components are loaded, they are stacked on a pallet and fixed to the pallet with bands or the like. Below, the loading rack 1 will be explained, and then the rack fixing jig 60 will be explained.

[0018] <Loading rack> As shown in Figure 1, the loading rack 1 (1A, 1B) comprises a frame-shaped base member 10, a plurality of support members 20 arranged at the four corners of the base member 10 and extending upward from the base member 10, a pair of connecting members 30 extending in the length direction of the loading rack 1 and connecting the support members 20 together, a pair of support members 40 extending in the width direction of the loading rack 1 and connecting the support members 20 together, and a plurality of intermediate support members 50 extending in the width direction of the loading rack 1 and connecting the connecting members 30 together. The first loading rack 1A and the second loading rack 1B are connected by a plurality of rack fixing jigs 60. The mounting positions and numbers of the support members 20, connecting members 30, receiving members 40, and intermediate receiving members 50 can be changed as appropriate. For example, they can be changed according to the load of the construction members 2.

[0019] As shown in FIGS. 1 to 3, the base member 10 is a frame-shaped member that serves as the base of the loading rack 1, ensuring the rigidity of the loading rack 1 and also functioning as a support member on which the construction member 2 is placed on the upper surface. Specifically, the base member 10 includes a rectangular frame-shaped base body 11 and a plurality of legs 12 attached to the four corners of the base body 11 and extending downward from the base body 11.

[0020] The base body 11 serves as a receiving portion for the construction member 2. The legs 12 are support legs that support the support members 20 from below, and are attached to the outer surfaces of the base body 11 in the width direction. The upper end of the leg portion 12 is formed with a fitting recess 13 (fitted portion) into which the support member 20 (fitting protrusion 22) is detachably fitted in the vertical direction. As shown in FIGS. 2 and 3, the fitting recess 13 has a recess body 13a having a closed cross section (rectangular cross section), and a slit-like support groove 13b formed at the upper end of the recess body 13a.

[0021] As shown in FIGS. 1 to 4, the support members 20 are long members that serve as support members for the loading rack 1, and are arranged at the four corners of the loading rack 1, making a total of four support members. Specifically, the support member 20 has a support body 21 that is elongated in the vertical direction and has a rectangular cross section, an engaging protrusion 22 formed at the lower end of the support body 21 and that engages with the base member 10 (engaging recess 13), and engaging hole portions 23 and 24 formed to protrude in opposite directions from the outer surface of the support body 21 and that engage with the connecting member 30 (engaging protrusion 32) or the receiving member 40 (engaging protrusion 43).

[0022] As shown in Figures 2 and 3, the mating convex portion 22 is a mating portion having a closed cross-section, and specifically has a convex portion main body 22a having a closed cross-section and a protrusion 22b protruding outward from the outer surface of the convex portion main body 22a. The support member 20 is attached to the base member 10 in the vertical direction by fitting the fitting convex portion 22 (convex portion main body 22a) into the fitting concave portion 13. At this time, the protrusion 22b is inserted into the support groove 13b and is held by the support groove 13b. This makes it easier to position the support member 20 when assembling the support member 20 to the base member 10. Furthermore, the assembly rigidity between the base member 10 and the support member 20 can be increased.

[0023] 4, a plurality of the engagement holes 23, 24 are formed at predetermined intervals in the vertical direction and have a common engagement method. The engagement holes 23, 24 are also called engagement pockets. The engagement hole 23 is arranged on the inner surface of the support member 20 in the length direction of the loading rack 1, and the engagement hole 24 is arranged on the outer surface of the support member 20.

[0024] The engagement hole portion 23 has left and right side wall portions 23a that protrude outward from the inner surface of the support member 20 at a predetermined interval in the width direction of the support member 20, and a connecting wall portion 23b that connects the protruding ends of the left and right side wall portions 23a. That is, the engagement hole 23 is formed by the support member 20, the left and right side wall portions 23a, and the connecting wall portion 23b. Similarly, the engagement hole 24 has left and right side wall portions 24a and a connecting wall portion 24b.

[0025] As shown in Figures 1, 4, and 5, the connecting member 30 is a long member that connects the support members 20 lined up in the longitudinal direction of the loading rack 1, and in addition to imparting rigidity to the loading rack 1, it also functions as a member that engages the lifting member of the lifting device. Specifically, the connecting member 30 has a connecting body 31 that is long in the longitudinal direction of the loading rack 1, and engaging protrusions 32 formed at both ends of the connecting body 31 in the longitudinal direction and that engage with the support member 20 (engagement hole portion 23). The engaging protrusion 32 is attached to the end face of the connecting body 31 in the longitudinal direction, protrudes downward from the connecting body 31, and is an engaging portion that detachably engages with the engaging hole 23 from above.

[0026] In the above configuration, as shown in Figures 4 and 5, when the connecting member 30 is assembled to the support member 20, the end (end face) of the engaging protrusion 32 abuts against the side surface of the support member 20, and the engaging protrusion 32 engages with the engaging hole portion 23. This makes it possible to increase the assembly rigidity of the loading rack 1 while eliminating the need for bolt fastening.

[0027] As shown in Figures 1, 4, and 5, the support member 40 is a long member that connects the support members 20 lined up in the width direction of the loading rack 1, and in addition to imparting rigidity to the loading rack 1, it also functions as a support member on which the building members 2 are placed. Specifically, the receiving member 40 has a receiving body 41 that is elongated in the width direction of the loading rack 1, extension portions 42 that are attached to the side surfaces of both longitudinal ends of the receiving body 41 and extend outward in the longitudinal direction, and engaging protrusions 43 that are formed on the extending ends of the pair of extension portions 42 and engage with the support member 20 (engagement hole portion 24).

[0028] The receiving body 41 serves as a receiving portion for the construction member 2. The extension portion 42 is attached to the outer surface of the receiving body 41 so as to avoid interference with the construction member 2, and is positioned so as not to protrude above the receiving body 41. The engaging protrusion 43 protrudes downward from the extending portion 42 and is an engaging portion that detachably engages with the engaging hole 24 from above.

[0029] As shown in FIGS. 1 and 5, the intermediate support member 50 is a long member that is hung across the base member 10 of the loading rack 1 or the pair of connecting members 30, and functions as a support member on which the construction member 2 is placed. Specifically, the intermediate support member 50 has a support body 51 that is elongated in the width direction of the loading rack 1, and clamping portions 52 that are attached to both ends of the support body 51 in the longitudinal direction and clamp the base body 11 or the connecting body 31. The clamping portion 52 is detachably attached to the base body 11 (connecting body 31) from above, and clamps the base body 11 so as to surround it. This makes it possible to increase the assembly rigidity of the loading rack 1 while eliminating the need for bolt fastening.

[0030] <Rack fixing jig> As shown in FIGS. 6 to 9B, the rack fixing jig 60 is a jig for fixing the first loading rack 1A and the second loading rack 1B together, and is an attachment formed by processing, for example, a steel plate or a square pipe. Furthermore, after the rack fixing jig 60 is fixed to the loading racks 1A and 1B, it can be used as a foothold step for workers. The rack fixing jig 60 is a jig that connects the loading racks 1A and 1B while they are aligned in the width direction, but is not particularly limited to this. For example, it may be a jig that connects the loading racks 1A and 1B while they are aligned in the length direction.

[0031] The rack fixing jig 60 includes a first engagement portion 61 that engages from above with a first engagement hole portion 24A (first engaged portion) provided on the outer surface of the first loading rack 1A, a second engagement portion 62 that engages from above with a second engagement hole portion 24B (second engaged portion) provided on the outer surface of the second loading rack 1B, and a connecting portion 63 that connects the upper portion of the first engagement portion 61 and the upper portion of the second engagement portion 62. In addition, the rack fixing jig 60 further includes a first reinforcing wall portion 64 that connects the first engagement portion 61 and the connecting portion 63 and protrudes toward the outside of the loading rack 1 along the connecting portion 63, and a second reinforcing wall portion 65 that connects the second engagement portion 62 and the connecting portion 63 and protrudes toward the outside of the loading rack 1 along the connecting portion 63.

[0032] The first engaging portion 61 and the second engaging portion 62 are arranged at a predetermined interval in the direction in which the loading racks 1A and 1B are arranged. The first engagement portion 61 engages with the first engagement hole portion 24A from above while in contact with the first side surface 20a of the support member 20A of the first stacking rack 1A. The second engagement portion engages with the second engagement hole 24B in a state in which it abuts against a second side surface 20b, which is on the first side surface 20a side, of the side surfaces of the support member 20B of the second stacking rack 1B. The connecting portions 63 protrude outward from the outer surfaces of the loading racks 1A, 1B to form scaffolding steps. At this time, the connecting portions extend long enough to straddle the first side surface 20a and the second side surface 20b in the arrangement direction of the loading racks 1A, 1B.

[0033] The first engagement portion 61 is a plate-shaped engagement protrusion extending downward from the base end of the connecting portion 63, and has a main body portion 61a extending with a constant width, and a tip portion 61b formed so that its width narrows as it extends from the main body portion 61a to the tip portion. The second engaging portion 62 is an engaging protrusion similar to the first engaging portion 61, and has a main body portion 62a and a tip portion 62b. The first engaging portion 61 and the second engaging portion 62 have a common fitting type. Specifically, they have a common wedge shape (reverse tapered shape).

[0034] The first reinforcing wall portion 64 and the second reinforcing wall portion 65 each have a closed cross-sectional structure (rectangular cross-sectional structure), are arranged at a predetermined interval, and support the connecting portion 63 from below. The first reinforcing wall portion 64 and the second reinforcing wall portion 65 are fixed to the first engaging portion 61, the second engaging portion 62 and the connecting portion 63 by, for example, welding. Note that they may also be fixed by bolts.

[0035] In the above configuration, as shown in FIGS. 8 and 9A, the rack fixing jig 60 is used when the loading racks 1A, 1B secured by the securing members 100 are transported by truck T. More specifically, the loading racks 1A and 1B are secured by a cargo securing member 100 (a cargo securing belt) in a state where they are loaded on the loading platform T1, and are covered by a truck cover (not shown). At this time, as shown in FIG. 9A, the connecting portion 63 abuts the cargo securing member 100 from below, so that the rack fixing jig 90 can suitably support the cargo securing member 100. That is, the cargo securing member 100 can be stably attached by the rack fixing jig 60 that fixes the loading racks 1A, 1B together.

[0036] 9B is a diagram showing a modified example, illustrating a state in which the cargo securing member 100 is wound around the rack fixing jig 60. FIG. As shown in FIG. 9B, the cargo securing member 100 may be passed through the gap between the left and right reinforcing wall portions 64, 65 and the gap between the left and right engaging portions 61, 62 and wrapped around the connecting portion 63. This allows the rack fixing jig 90 to support the cargo securing member 100 more suitably.

[0037] <Method of fixing the rack using a rack fixing jig> Next, a rack fixing method will be described with reference to FIGS. 8, 9A, and 9B. First, the worker lowers one of the left and right tailgates T2 of the truck T. Then, the worker places the first loading rack 1A on the side where the gate T2 has been lowered, and brings it into contact with the gate T2 on the opposite side. Then, the second loading rack 1B is placed on it and arranged next to the first loading rack 1A.

[0038] After the second loading rack 1B is placed at a position adjacent to the first loading rack 1A, a plurality of rack fixing jigs 60 are prepared. 8, rack fixing jigs 60 are attached to both ends of the loading racks 1A and 1B in the length direction, with a gap between them in the vertical direction. In this embodiment, the rack fixing jigs 60 are attached to four locations. It is advisable to temporarily engage the first engaging portion 61 and the second engaging portion 62 with the first engaging hole portion 24A and the second engaging hole portion 24B from above, and then hit the rack fixing jig 60 from above to drive it in. It is also advisable to first drive in the rack fixing jig 60 at the lower of the four locations, and then drive in the rack fixing jig 60 at the upper location.

[0039] After the loading racks 1A and 1B are fixed to each other and loaded on the loading platform T1 of the truck T, the gate T2 on one side is raised from the lowered state. Then, the load-fastening member 100 is attached from one end of the loading platform T1 to the other end by fastening the loading racks 1A and 1B. At this time, it is preferable to abut the cargo securing member 100 from below using the rack fixing jig 60 (connecting portion 63) as shown in Fig. 9A, or to wrap it around the rack fixing jig 60 as shown in Fig. 9B.

[0040] With the above configuration, the rack fixing jig can be used to stably fix multiple loading racks in a lined-up state (with the loading racks adjacent to each other), and the multiple loading racks can be conveniently transported by a transport vehicle such as a truck.

[0041] <Second embodiment of rack fixing jig> Next, a rack fixing jig 70 according to a second embodiment will be described with reference to FIGS. The description of the same contents as those of the rack fixing jig 60 described above will be omitted.

[0042] As shown in FIG. 10, the rack fixing jig 70 is a jig for fixing the first loading rack 1A and the second loading rack 1B together, and can also be used as a foothold step for workers. The rack fixing jig 70 can be switched between a "first fixing position" in which the first loading rack 1A and the second loading rack 1B are fixed to each other, as shown in FIG. 10, and a "second fixing position" in which the rack fixing jig 70 is attached to the first loading rack 1A, as shown in FIG. 11. When the rack fixing jig 70 is in the "second fixing position", it can be stored in a suitable state in which it is attached only to the first stacking rack 1A, which means that it is possible to prevent the rack fixing jig 70 from being lost.

[0043] The rack fixing jig 70 includes a first engagement portion 71, a second engagement portion 72, an auxiliary engagement portion 73, a first connecting portion 74 connecting the first engagement portion 71 and the second engagement portion 72, and a second connecting portion 75 connecting the second engagement portion 72 and the auxiliary engagement portion 73.

[0044] As shown in FIG. 10, the first engagement portion 71, the second engagement portion 72, and the auxiliary engagement portion 73 are arranged at a predetermined interval in the arranging direction of the loading racks 1A, 1B. The auxiliary engagement portion 73 protrudes in the same direction (downward) as the first engagement portion 71 and the second engagement portion 72, and is capable of engaging with the engagement hole portions (first engagement hole portion, second engagement hole portion) of the loading rack 1 from above. That is, the first engaging portion 71, the second engaging portion 72, and the auxiliary engaging portion 73 have a common fitting type. The distance between the second engagement portion 72 and the auxiliary engagement portion 73 is wider than the distance between the first engagement portion 71 and the second engagement portion 72. Therefore, two engagement portions can be selected from the three engagement portions 71 to 73 according to the type of loading rack, that is, according to the distance when the loading racks 1 are placed adjacent to each other.

[0045] As shown in Figure 10, the first connecting portion 74 has a connecting body 74a that connects the upper end of the first engaging portion 71 and the upper end of the second engaging portion 72, and a third engaging portion 74b that protrudes outward from the outer surface of the connecting body 74a and forms a scaffolding step. The second connecting portion 75 also has a connecting body 75a that connects the upper end of the second engaging portion 72 and the upper end of the auxiliary engaging portion 73, and a fourth engaging portion 75b that protrudes outward from the outer surface of the connecting body 75a and forms a scaffolding step.

[0046] The third engaging portion 74b and the fourth engaging portion 75b are arranged at a predetermined interval and protrude in a direction different from that of the engaging portions 71-73. In detail, the third engagement portion 74b is arranged to protrude further outward from the loading rack 1 than the first engagement portion 71, and extends in a direction perpendicular to the engagement direction (protruding direction) of the first engagement portion 71 and the outward direction of the loading rack. The fourth engagement portion 75b is provided at a distance from the third engagement portion 74b in the extension direction of the third engagement portion 74b, and is arranged to be aligned with the third engagement portion 74b. The third engaging portion 74b and the fourth engaging portion 75b have the same fitting format as the engaging portions 71 to 73, and as shown in FIG. 11, are capable of engaging with the first engaging hole portion 24A of the first stacking rack 1A.

[0047] As shown in Figure 11, the third engagement portion 74b and the fourth engagement portion 75b are capable of engaging from above with first engagement hole portions 24A provided at intervals in the vertical direction on the side surface of the first loading rack 1A (support member 20A). In more detail, when the rack fixing jig 70 is in the "second fixing position," the third engagement portion 74b and the fourth engagement portion 75b are engaged with the first engagement hole portion 24A located at different positions in the vertical direction, and the first engagement portion 71, the second engagement portion 72, and the auxiliary engagement portion 73 extend toward the inside of the first loading rack 1A. Therefore, the rack fixing jig 70 can be attached to the first loading rack 1A for storage without protruding outward from the first loading rack 1A. Furthermore, the engagement portions 71 to 73 can be used to support the construction members 2 loaded on the first loading rack 1A from the side.

[0048] <Third embodiment of rack fixing jig> Next, a rack fixing jig 80 according to a third embodiment will be described with reference to FIG. The description of the same contents as those of the rack fixing jigs 60 and 70 described above will be omitted.

[0049] The rack fixing jig 80 is a jig for fixing the loading racks 1A and 1B together, and can also be used as a foothold step for workers. The rack fixing jig 80 includes a first engaging portion 81, a second engaging portion 82, and a connecting portion 83.

[0050] The first engagement portion 81 and the second engagement portion 82 are engagement protrusions extending downward from the connecting portion 83, and are formed so that their width narrows as they move from the connecting portion 83 side toward the tip, and have a wedge shape (reverse tapered shape). More specifically, the first engaging portion 81 and the second engaging portion 82 are formed so as to be narrow all the way to their respective tip portions (tips), and have a substantially triangular shape in side view. Therefore, even if the distance between the first loading rack 1A (first engagement hole portion 24A) and the second loading rack 1B (second engagement hole portion 24B) is slightly different from the specified distance, the racks can be fixed to each other (they can be engaged with each engagement hole portion 24A, 24B).

[0051] The connecting portions 83 protrude outward from the outer surfaces of the loading racks 1A, 1B to form scaffolding steps. At this time, the connecting portions extend so as to straddle the first side surface 20a and the second side surface 20b in the arrangement direction of the loading racks 1A, 1B.

[0052] <Fourth embodiment of rack fixing jig> Next, a rack fixing jig 90 according to a fourth embodiment will be described with reference to FIGS. The description of the same contents as those of the rack fixing jigs 60, 70, and 80 described above will be omitted.

[0053] The rack fixing jig 90 is a jig for fixing the loading racks 1A and 1B together, and can also be used as a foothold step for workers. The rack fixing jig 90 is composed of a first jig 90A and a second jig 90B. The first jig 90A has a first engagement portion 91 and a first connection portion 92 extending horizontally from the upper end of the first engagement portion 91. A first through-hole 93 having a substantially elliptical shape is formed in the upper surface of the first connection portion 92. The second jig 90B has a second engagement portion 94 and a second connection portion 95 extending horizontally from the upper end of the second engagement portion 94. A second through-hole 96 having a substantially circular shape is formed in the upper surface of the second connection portion 95. 14, the first through hole 93 is a larger hole (loose hole) than the second through hole 96. A connecting pin 97 is fastened to the first through hole 93 and the second through hole 96.

[0054] When the rack fixing jig 90 is fixed to the loading racks 1A, 1B, in other words, when the first jig 90A is engaged with the first loading rack 1A (first engagement hole portion 24A) and the second jig 90B is engaged with the second loading rack 1B (second engagement hole portion 24B), a portion of the first connecting portion 92 and a portion of the second connecting portion 95 overlap vertically. In other words, the first connecting portion 92 and the second connecting portion 95 protrude outward from the stacking rack 1 and extend along the arrangement direction of the stacking racks 1. The extending portion of the first connecting portion 92 and the extending portion of the second connecting portion 95 overlap each other in the vertical direction, and the first through hole 93 and the second through hole 96 communicate with each other in the vertical direction. A connecting pin 97 (connecting member) is attached from above so as to pass through the first through-hole 93 and the second through-hole 96, thereby connecting (integrating) the first jig 90A and the second jig 90B.

[0055] 14, the horizontal positions of the first jig 90A (first connecting portion 92) and the second jig 90B (second connecting portion 95) can be adjusted within a range where they overlap vertically. In other words, the positions can be adjusted in the width direction of the stacking rack 1. Therefore, the rack fixing jig 90 can adjust the horizontal positions of the first engagement portion 91 and the second engagement portion 94 to correspond to the distance between the first loading rack 1A (first engagement hole portion 24A) and the second loading rack 1B (second engagement hole portion 24B), and can be suitably fixed to the loading rack 1A.

[0056] <Other embodiments> In the above embodiment, as shown in FIG. 1, the loading racks 1A and 1B are connected by the rack fixing jig 60 in a state where they are aligned in the width direction, but this is not particularly limited. The loading racks 1A and 1B may be connected by a rack fixing jig 60 in a state where they are aligned in the length direction.

[0057] In the above embodiment, as shown in Figure 4, the support member 20 has engagement holes 23, 24, and the connecting member 30 and the receiving member 40 have engagement protrusions 32, 43, but this is not particularly limited and the configuration may be reversed. That is, the support member 20 may have an engaging protrusion, and the connecting member 30 and the receiving member 40 may have an engaging hole. In this case, it is preferable that the first engaging portion 61 and the second engaging portion 62 of the rack fixing jig 60 have an engaging hole or an engaging recess shape so that they can engage with the support member 20. In this way, the engagement structure (concave and recess structure) may be configured in reverse.

[0058] In the above embodiment, the loading rack fixing jig and the loading rack fixing method according to the present invention have been mainly described. However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from the spirit thereof, and the present invention naturally includes equivalents thereof. In particular, the above-described embodiments are merely examples and do not limit the present invention. [Explanation of symbols]

[0059] 1 Loading rack 1A First Loading Rack 1B Second Loading Rack 2. Building materials 10 Base member 11 Base body 12 Legs 13 Fitting recess 13a Recessed body 13b Support groove 20, 20A, 20B Support members 20a First side 20b 2nd side 21 Pillar body 22 mating protrusion 22a Protrusion body 22b protrusion 23 Engagement hole part (engaged part) 23a Side wall part 23b Connecting wall section 24 Engagement hole 24A 1st engagement hole part (1st engaged part) 24B Second engagement hole (second engaged part) 24a Side wall part 24b Connecting wall 30 Connecting member 31 Connecting body 32 Engagement protrusion 40 Receiving member 41 Receiving body 42 Extension part 43 Engagement protrusion 50 Intermediate support member 51 Receiving body 52 Clamping part 60 Rack fixing jig (loading rack fixing jig) 61 first engagement portion (first engagement protrusion) 61a Main body 61b Tip 62 second engagement portion 62a Main body 62b Tip 63 Connection part (scaffolding step) 64 First reinforcing wall 65 Second reinforcing wall 70 Rack fixing jig 71 First engagement portion 72 second engagement portion 73 Auxiliary engagement part 74 1st connection part 74a Connecting body 74b Third engagement part (scaffolding step) 75 2nd connection part 75a Connecting body 75b Fourth engagement part (scaffolding step) 80 Rack Fixture 81 first engagement portion 82 second engagement portion 83 Connection (Scaffolding Step) 90 Rack fixing jig 90A First Jig 90B Second jig 91 First engagement portion 92 1st connection part 93 First through hole 94 Second engagement portion 95 2nd connection part 96 Second through hole 97 Connecting pins (connecting bolts, connecting members) 100 Cargo securing member (cargo securing belt) T-track T1 Cargo bed T2 Aori

Claims

1. A loading rack fixing jig that fixes a plurality of loading racks loaded with construction materials together in a state where the loading racks are arranged side by side, a first engaging portion that engages from above with a first engaged portion provided on a side surface of the first loading rack; a second engaging portion that engages from above with a second engaged portion provided on a side surface of a second loading rack adjacent to the first loading rack; a connecting portion connecting an upper portion of the first engaging portion and an upper portion of the second engaging portion, The first engagement portion and the second engagement portion are arranged at intervals in the arrangement direction of the loading racks, the first engaging portion engages with the first engaged portion provided on a first side surface of the first loading rack, and the second engaging portion engages with the second engaged portion provided on a second side surface of the second loading rack that is closer to the first side surface of the first loading rack, The loading rack fixing jig is characterized in that the connecting portion protrudes outward from a side surface of the loading rack.

2. The loading rack fixing jig is used when the loading racks are transported by truck in a state where the loading racks are fixed to each other, The connecting portion protrudes outward from the side surface of the loading rack to form a scaffolding step, When the loading rack fixing jig fixes the loading racks together, the first engaging portion engages with the first engaged portion from above while in contact with the first side surface of the first loading rack, and the second engaging portion engages with the second engaged portion from above while in contact with the second side surface of the second loading rack, The loading rack fixing jig according to claim 1 , wherein the connecting portion extends across the first side surface and the second side surface in the arrangement direction of the loading racks.

3. The loading rack fixing jig is Used when transporting the loading rack secured by the securing members, The loading rack fixing jig according to claim 1, wherein the securing member is supported by contacting the securing member from below with the connecting portion or by wrapping the securing member around the connecting portion.

4. a first reinforcing wall portion that connects the first engaging portion and the connecting portion and protrudes toward an outside of the loading rack along the connecting portion; a second reinforcing wall portion that connects the second engagement portion and the connecting portion and protrudes toward an outside of the loading rack along the connecting portion, A loading rack fixing jig as described in any one of claims 1 to 3, characterized in that the first reinforcing wall portion and the second reinforcing wall portion each have a closed cross-sectional structure, are arranged at a predetermined interval, and support the connecting portion from below.

5. The connecting portion is a third engaging portion that is provided so as to protrude outward from the loading rack more than the first engaging portion, extends in a direction perpendicular to the engaging direction of the first engaging portion and the outward direction of the loading rack, and is engageable with the first engaged portion of the first loading rack; a fourth engaging portion that is provided at an interval from the third engaging portion in the extending direction of the third engaging portion, is arranged to be aligned with the third engaging portion, and is engageable with the first engaged portion of the first loading rack, the third engaging portion and the fourth engaging portion are each capable of engaging from above with the first engaged portion provided on a side surface of the first loading rack at an interval in the up-down direction, The loading rack fixing jig is a first fixing position for fixing the first loading rack and the second loading rack to each other; a second fixed position attached to the first loading rack; When the loading rack fixing jig is in the second fixing position, the third engaging portion and the fourth engaging portion are engaged with the first engaged portion at different positions in the up-down direction, 4. The loading rack fixing jig according to claim 1, wherein the first engaging portion and the second engaging portion each extend toward an inner side of the first loading rack.

6. The loading rack fixing jig according to any one of claims 1 to 3, characterized in that the first engaging portion and the second engaging portion are engaging protrusions extending downward from the connecting portion, and are formed so as to become narrower as they extend from the connecting portion side toward the tip end, and have an inverted tapered shape.

7. The connecting portion is a first connecting portion attached to an upper end of the first engaging portion and protruding toward the outside of the loading rack; a second connecting portion attached to an upper end of the second engaging portion and protruding toward the outside of the loading rack, The first connecting portion and the second connecting portion are Each extends along the direction in which the loading racks are arranged, A loading rack fixing jig as described in any one of claims 1 to 3, characterized in that the extension portion of the first connecting portion and the extension portion of the second connecting portion are connected to each other in a vertically overlapping state, and the horizontal position can be adjusted within the range of the vertical overlap.

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