Transport implement

Abstract

[Problem] Disclosed is a transport implement with which it is possible to easily perform packing work. [Solution] A transport implement (10) according to the present invention comprises: a dunnage (11) placed on a pallet (80); and support members (20A, 20B) made of foamed resin that are placed on the dunnage (11) and that support cargo (90A, 90B) from below. Further, the support members (20A, 20B) are formed with a pair of first fork insertion holes (21) for lifting the support members (20A, 20B), a second fork insertion hole (22) for lifting the cargo (90A, 90B), and a first positioning recessed portion (26) that opens to outer surfaces and lower surfaces of the support members (20A, 20B). The dunnage (11) is formed with a first positioning protruding portion (16) that engages with the first positioning recessed portion (26) in a concave-convex manner and that is exposed from an outer surface opening (26K).

Description

Conveyor

[0001] The present disclosure relates to a conveying tool for conveying cargo.

[0002] There is known a conveying tool that includes a dunnage placed on a pallet and a foamed resin support member placed on the dunnage for supporting cargo from below (see, for example, Patent Document 1).

[0003] Japanese Utility Model Laid-Open No. 02-063335 (see Figures 4 and 5)

[0004] However, conventional conveying tools have a problem that after the pallet is conveyed to the packing site by a forklift, a crane operation is required to lift the cargo with a crane and place it on the support member, which makes packing work time-consuming. Therefore, the present application discloses a conveying tool that can facilitate packing work.

[0005] A first aspect of the present invention provides a conveying tool including: a dunnage placed on a pallet; a support member made of foamed resin that is placed on the dunnage and supports cargo from below; a pair of first fork insertion holes formed in the support member for lifting the support member with a forklift; a second fork insertion hole formed in the support member for lifting the cargo with a forklift; a first positioning recess formed between the pair of first fork insertion holes in the support member and open to an outer side surface and a lower surface of the support member; and a first positioning protrusion formed on the dunnage, which engages with the first positioning recess in a concave-convex manner and is exposed from the opening on the outer side surface of the first positioning recess.

[0006] Figure 1 is a perspective view of the transport device according to the first embodiment of this disclosure. Figure 2 is a perspective view of the dunnage. Figure 3 is a three-view drawing of the dunnage. Figure 4A is an upper perspective view of the support member. Figure 4B is a lower perspective view of the support member. Figure 5A is an upper perspective view of the support member. Figure 5B is a lower perspective view of the support member. Figure 6 is a plan cross-sectional view of the support member placed on the dunnage. Figure 7 is a perspective view of the transport device with the lid and sleeve removed. Figure 8A is a side cross-sectional view of the transport device viewed from a first horizontal direction. Figure 8B is a side cross-sectional view of the transport device viewed from a second horizontal direction. Figure 9 is a perspective view of the transport device. Figure 10 is a perspective view of the transport device when not in use. Figure 11 is a plan cross-sectional view of the support member placed on the dunnage according to the second embodiment. Figure 12 is a perspective view of the dunnage according to the third embodiment.

[0007] [First Embodiment] A transport device 10 according to one embodiment of the present disclosure will be described below with reference to Figures 1 to 10. As shown in Figure 1, the transport device 10 includes a dunnage 11, a support member 20 placed on the dunnage 11 and supporting the load 90 from below, a sleeve 50 surrounding the support member 20 and the load 90, and a lid 60 that closes the upper opening of the sleeve 50.

[0008] The dunnage 11 is used by being placed on a pallet 80. The pallet 80 is a molded resin product whose planar shape is, for example, a rectangle that is slightly larger in the second horizontal direction H2 perpendicular to the first horizontal direction H1, and has a pair of fork insertion holes 81 that penetrate in the first horizontal direction H1 and a pair of fork insertion holes 82 that penetrate in the second horizontal direction H2. In addition, the deck board portion 83 of the pallet 80 above the fork insertion holes 81 and 82 has a rib structure (mesh structure) and is provided with a plurality of through holes (not shown) that penetrate in the vertical direction throughout.

[0009] The pallet 80 may have a square planar shape, or it may have a pair of fork insertion holes penetrating in only one direction, between the first horizontal direction H1 and the second horizontal direction H2. Furthermore, the pallet 80 does not have to be a lattice structure (mesh structure) as long as the deck board portion 83 has through holes, and it may be made of wood.

[0010] The dunnage 11 is, for example, a vacuum-formed resin product, and as shown in Figures 2 and 3, it has a rectangle shape that is substantially the same as the planar shape of the pallet 80, and comprises a horizontal and flat main plate portion 12, a plurality of protrusions projecting from its upper and lower surfaces, and a plurality of recesses formed on the back side of these protrusions. Furthermore, the dunnage 11 has a shape that is symmetrical in both the first horizontal direction H1 and the second horizontal direction H2.

[0011] In this embodiment, the dunnage 11 is a rectangle of approximately the same size as the planar shape of the pallet 80 (see Figure 1). However, it may also be a rectangle smaller than the planar shape of the pallet 80, or an octagon formed by cutting off the four corners of a rectangle.

[0012] The multiple protrusions 14 on the lower side of the dunnage 11 (see Figure 3) fit into the through holes in the deck board portion 83 when the dunnage 11 covers the entire upper surface of the deck board portion 83, thereby positioning the dunnage 11 two-dimensionally in the horizontal direction relative to the pallet 80. Note that Figure 2 does not show the multiple protrusions 14, but only the multiple recesses 14U located on the back side of the multiple protrusions 14.

[0013] As shown in Figure 2, the multiple protrusions on the upper surface of the dunnage 11 include an outer edge protrusion 15, first and second outer edge protrusions 19A and 19B, a first positional protrusion 16, and a second positional protrusion 17.

[0014] The outer edge projection 15 protrudes from the entire outer edge of the dunnage 11. The outer edge projection 15 includes a number of relatively low parts 15A and a number of relatively high parts 15B. Specifically, in a pair of outer edges parallel to the first horizontal direction H1, for example, high parts 15B are arranged at a total of four locations: both ends in the longitudinal direction and two locations near the center. In a pair of outer edges parallel to the second horizontal direction H2, high parts 15B are arranged at a total of three locations: the center in the longitudinal direction and both ends. The parts of the outer edge projection 15 other than the high parts 15B described above are low parts 15A. Furthermore, the high parts 15B are perpendicular to each other at the four corners of the dunnage 11. In addition, knots 15C are formed at both ends of each outer edge of the dunnage 11 and at the center of the pair of outer edges parallel to the second horizontal direction H2. Each section 15C, although not shown in detail, has a structure in which a pair of side walls of the elevated section 15B are partially bent into a trapezoidal groove shape or a rectangular groove shape to bring them closer together, and the center of the bottom of the trapezoidal groove or rectangular groove is bent into a V-groove shape to connect them to each other.

[0015] Multiple first outer edge projections 19A are positioned slightly inward from the high portion 15B of the outer edge projection 15 that is parallel to the second horizontal direction H2 of the dunnage 11. Furthermore, the first outer edge projections 19A have a rectangular cross-section, extend in the second horizontal direction H2, are wider than the outer edge projection 15, are lower than the high portion 15B of the outer edge projection 15, and are higher than the low portion 15A.

[0016] Multiple second outer-edge projections 19B are positioned slightly inward from the central lower portion 15A of the outer edge projection 15 of the dunnage 11, which is parallel to the first horizontal direction H1, and extend in the first horizontal direction H1 with approximately the same length as the lower portion 15A. Furthermore, the second outer-edge projections 19B are wider than the outer edge projection 15, have approximately the same height as the higher portion 15B of the outer edge projection 15, and both ends in the longitudinal direction are inclined with respect to the vertical direction.

[0017] The first positional projection 16 comprises a vertical projection 16A having a roughly rectangular cross-section and extending in the first horizontal direction H1, and a horizontal projection 16B having a roughly rectangular cross-section and extending in the second horizontal direction H2, with these crossing in a cross shape at approximately the center of their respective longitudinal directions. The vertical projection 16A is located in the center of the second horizontal direction H2 in the dunnage 11, and a node 16C is formed near one end of the vertical projection 16A. The node 16C has the same structure as the node 15C of the outer edge projection 15 described above. The first positional projection 16 is also approximately the same height as the high portion 15B of the outer edge projection 15.

[0018] The second positional projection 17 comprises a vertical projection 17A with a rectangular cross-section extending in the first horizontal direction H1, and a horizontal projection 17B with a rectangular cross-section extending in the second horizontal direction H2. The horizontal projection 17B crosses the vertical projection 17A in a T-shape at a position closer to one end (specifically, at the end closer to the second outer edge projection 19B mentioned above). Furthermore, the portion of the vertical projection 17A that crosses the horizontal projection 17B is a stepped, raised intersection projection 17C. The intersection projection 17C extends slightly longer than the width of the intersection projection 17C in the first horizontal direction H1. Moreover, the horizontal projection 17B is located on the extension line of the horizontal projection 16B of the first positional projection 16. Furthermore, the height from the main plate portion 12 to the upper surface of the intersecting projection 17C is approximately the same as the height 15B of the outer edge projection 15, and the overall height of the second position projection 17 excluding the intersecting projection 17C is about the same as the height of the first outer edge projection 19A. More specifically, the vertical ridge 17A of the second position projection 17 is slightly lower than the first outer edge projection 19A, and the horizontal ridge 17B is slightly higher than the first outer edge projection 19A.

[0019] The support member 20 shown in Figure 1 is, for example, a bead foam molded product, which is placed on the dunnage 11 to support the load 90 from below. The support member 20 is not limited to a bead foam molded product; as long as it is made of foamed resin, the foam structure and resin composition are not limited.

[0020] Multiple types of support members 20 are provided to correspond to the types of luggage 90, and any number and type of support members 20 can be placed on the dunnage 11 according to the type and number of luggage 90. The transport device 10 shown in Figure 1 is used to transport two types of luggage 90A and 90B, and includes a support member 20A for luggage 90A and a support member 20B for luggage 90B. The support member mounting section 11R on the dunnage 11 corresponding to the support members 20A and 20B is as follows. That is, as shown in Figure 3, in the dunnage 11, a portion surrounded on all sides by a plurality of first outer edge projections 19A, a plurality of second outer edge projections 19B, and a plurality of vertical projections 17A of the second position projections 17 divides a portion in the first horizontal direction H1 into two equal parts, forming a pair of support member mounting sections 11R for mounting the support members 20A and 20B.

[0021] As shown in Figure 7, both the packages 90A and 90B are electrical devices, for example, that have electrical components inside a rectangular parallelepiped housing 91. Furthermore, the four corners of the bottom surface of packages 90A and 90B are equipped with casters 92, as shown in Figures 8A and 8B. Packages 90A and 90B differ in the planar shape and aspect ratio of the housing 91, as well as in their height.

[0022] The overall structure of support member 20A is shown in Figures 4A and 4B, and the overall structure of support member 20B is shown in Figures 5A and 5B. The planar shapes of support members 20A and 20B are both rectangles that are elongated in the second horizontal direction H2, and they are both the same size as the support member mounting portion 11R (see Figure 3) mentioned above.

[0023] The support members 20A and 20B have a pair of first fork insertion holes 21 and a pair of second fork insertion holes 22 that penetrate in the first horizontal direction H1. The pair of first fork insertion holes 21 are in the shape of a rectangular groove that opens downwards, and the second fork insertion holes 22 are in the shape of a rectangular groove that opens upwards. The width of the second fork insertion holes 22 is, for example, about 2 to 5 times the width of each of the first fork insertion holes 21. Furthermore, the inner upper surface of the pair of first fork insertion holes 21 and the inner lower surface of the second fork insertion holes 22 do not overlap when viewed from the vertical direction.

[0024] The cross-sectional shapes of the first fork insertion hole 21 and the second fork insertion hole 22 are preferably rectangular, but may also be trapezoidal. Furthermore, it is preferable that the first fork insertion hole 21 and the second fork insertion hole 22 do not overlap when viewed from above, but they may overlap. However, it is preferable for strength reasons that the inner upper surface of the first fork insertion hole 21 and the inner lower surface of the second fork insertion hole 22 do not overlap when viewed from above, and it is even preferable for strength reasons that the entirety of the first fork insertion hole 21 and the entirety of the second fork insertion hole 22 do not overlap when viewed from above.

[0025] As shown in Figures 4B and 5B, the lower surfaces of the support members 20A and 20B are divided by a pair of first fork insertion holes 21 into a central region R1 sandwiched between them and the remaining pair of end regions R2. A first position-resolving recess 26 corresponding to the first position-resolving portion 16 of the dunnage 11 is formed in the central region R1, and a second position-resolving recess 27 corresponding to a pair of second position-resolving portions 17 of the dunnage 11 is formed in the pair of end regions R2.

[0026] The pair of second positioning recesses 27 have a rectangular groove shape extending in the second horizontal direction H2 and have outer surface openings 27K that open to both outer surfaces of the support members 20A and 20B facing the second horizontal direction H2. In addition, a rectangular cross-section projection 27T is formed on the support members 20A and 20B at a position directly behind the second positioning recess 27. In detail, as shown in Figure 4A, both ends of the support member 20A in the second horizontal direction H2 have a structure in which the side walls rise from the outer edge of the bottom plate wall. The projection 27T extends in the second horizontal direction H2 from the center of the first horizontal direction H1 on the upper surface of the bottom plate wall, and the second positioning recess 27 is formed along the projection 27T. Also, as shown in Figure 5A, the support member 20B has a bottom plate wall at only one end in the second horizontal direction H2, and a projection 27T is similarly formed on its upper surface.

[0027] The first positioning recess 26 comprises a roughly rectangular vertical groove 26A extending in the first horizontal direction H1 and a roughly rectangular horizontal groove 26B extending in the second horizontal direction H2, with these grooves crossing each other in a cross shape at approximately the center of the longitudinal direction. The vertical groove 26A also has an outer surface opening 26K that opens to both outer surfaces of the support members 20A and 20B facing the first horizontal direction H1. Furthermore, the intersection of the vertical groove 26A and the horizontal groove 26B in the first positioning recess 26 is located at the centroid of the planar shape of the support members 20A and 20B, and a pair of second positioning recesses 27 are located on the extension of the horizontal groove 26B. Specifically, the vertical groove 26A of the first positioning recess 26 is located in the center of the second horizontal direction H2 in the support members 20A and 20B, and the horizontal groove 26B of the first positioning recess 26 and the second positioning recess 27 are located in the center of the first horizontal direction H1 in the support members 20A and 20B. The inner upper surface of the second positioning recess 27 is lower than the inner upper surface of the first positioning recess 26.

[0028] Multiple recesses 29 are formed in the central region R1. The recesses 29 open only on the lower surfaces of the support members 20A and 20B and are arranged so as not to communicate with the first positioning recess 26.

[0029] Furthermore, the first positioning recess 26 and the second positioning recess 27 may or may not open to the inner surface of the first fork insertion hole 21. Also, in this embodiment, the shape of the recess 29 differs between the support members 20A and 20B, but may be the same. Moreover, in this embodiment, the arrangement of the pair of first fork insertion holes 21 relative to the centroid of the lower surface of the support members 20A and 20B differs, but may be the same.

[0030] When the support members 20A and 20B are placed on the support member mounting portion 11R of the Dunnage 11 (see Figure 3), as shown in Figure 6, the first positioning recess 26 of the support members 20A and 20B and the first positioning projection 16 of the Dunnage 11 engage in a concave-concave engagement, and the second positioning recess 27 of the support members 20A and 20B and the lateral projection 17B of the second positioning projection 17 of the Dunnage 11 engage in a concave-concave engagement. In addition, one end of the vertical projection 16A of the first positioning projection 16 is exposed from the outer surface opening 26K of the first positioning recess 26, and the intersecting projection 17C of the second positioning projection 17 is located in front of the outer surface opening 27K of the second positioning recess 27. Furthermore, between the support members 20A and 20B, at least one of the pair of first fork insertion holes 21 is offset in the second horizontal direction H2.

[0031] As shown in Figures 4A and 5A, the upper surfaces of the support members 20A and 20B are provided with a pair of caster housing recesses 25 on each side of the second fork insertion hole 22, arranged in the first horizontal direction H1. In addition, side support portions 23 are provided on the outer edges of both ends of the upper surfaces of the support members 20A and 20B in the first horizontal direction H1, and at positions on both sides of the second fork insertion hole 22 in the second horizontal direction H2. The portions located inside these side support portions 23 are lower bottom support portions 24.

[0032] As shown in Figure 8B, when the luggage 90A is placed on the support member 20A, the lower end of the housing 91 of the luggage 90A fits inside the side support portion 23, the caster 92 is received in the caster housing recess 25, and the lower support portion 24 abuts against the housing 91 from below, so that the luggage 90A is supported from below by the support member 20A. Luggage 90B is similarly supported from below by the support member 20B. Furthermore, when luggage 90A and 90B are supported by the support members 20A and 20B, the upper surfaces of luggage 90A and 90B are positioned at the same height. Moreover, as shown in Figure 7, when luggage 90A and 90B are placed on the dunnage 11 together with the support members 20A and 20B, one end face of luggage 90A and 90B in the second horizontal direction H2 is positioned at the same position in the second horizontal direction H2, while only the other end face is offset from each other in the second horizontal direction H2.

[0033] As shown in Figure 9, the sleeve 50 has a rectangular tubular shape in which its lower end can be fitted inside the outer edge projection 15 of the dunnage 11. The sleeve 50 is divided into an upper sleeve 51 and a lower sleeve 52 approximately in the center in the vertical direction. Furthermore, the upper sleeve 51 is divided vertically into a pair of sleeve divisions 51A in the center of the second horizontal direction H2, and the lower sleeve 52 is divided vertically into a pair of sleeve divisions 52A in the center of the first horizontal direction H1.

[0034] Each sleeve segment 51A has a structure in which a first hook-and-loop fastener 54A and a second hook-and-loop fastener 54B are fixed to a plate portion 55 made of, for example, resin corrugated cardboard (so-called plastic corrugated cardboard). The plate portion 55 consists of a central plate portion 55A parallel to the first horizontal direction H1, a pair of side plate portions 55B parallel to the second horizontal direction H2, and a pair of vertically elongated strip-shaped corner plate portions 55C hinged to the central plate portion 55A and the side plate portions 55B, respectively, and the pair of corner plate portions 55C are inclined with respect to the first horizontal direction H1 and the second horizontal direction H2. Furthermore, the second hook-and-loop fastener 54B is fixed to the outer surface of the side edge of one side plate portion 55B that is away from the corner plate portion 55C, and the first hook-and-loop fastener 54A is partially fixed to the outer surface of the side edge of the other side plate portion 55B that is away from the corner plate portion 55C, with a portion of it protruding on the extension of the outer surface of the side plate portion 55B. Then, between the pair of sleeve divisions 51A, the first hook-and-loop fastener 54A is superimposed on the second hook-and-loop fastener 54B and joined together, thereby connecting the pair of sleeve divisions 51A to form the upper sleeve 51. In addition, the pair of sleeve divisions 51A can be folded into a state in which the pair of side plate portions 55B are superimposed on the central plate portion 55A when separated. The folding type of the sleeve segment 51A may be a so-called M-type folding type in which a pair of side plate sections 55B are both overlapped on one side of the front or back of the central plate section 55A, or it may be a so-called Z-type folding type in which a pair of side plate sections 55B are overlapped on one side of the front and back of the central plate section 55A and the other side.

[0035] The pair of sleeve divisions 52A of the lower sleeve 52, like the pair of sleeve divisions 51A of the upper sleeve 51, comprises a plate portion 56 consisting of a central plate portion 56A, a pair of side plate portions 56B, and a pair of corner plate portions 56C, as well as a first hook-and-loop fastener 54A and a second hook-and-loop fastener 54B. In addition, a plurality of connecting plates 53 are fixed to the upper part of the sleeve division 52A.

[0036] The connecting plates 53 are provided in two types with different lengths, one for the central plate section 56A and the other for the side plate section 56B. Each is a strip-shaped plate that extends laterally over the corresponding central plate section 56A and side plate section 56B, and both upper corners are chamfered. The lower half of the connecting plates 53 are fixed to the inner and outer surfaces of the upper ends of the central plate section 56A and side plate section 56B, respectively, with the upper half of the connecting plates 53 protruding above the central plate section 56A and side plate section 56B. The lower end of the upper sleeve 51 is fitted between the inner and outer opposing connecting plates 53, thereby connecting the upper sleeve 51 and the lower sleeve 52.

[0037] In this embodiment, the connecting plates 53 are provided so as to face each other in the inner and outer directions of the lower sleeve 52. However, the connecting plates 53 may be fixed only to the outer surface or only to the inner surface of the lower sleeve 52. Alternatively, for example, the connecting plates 53 may be fixed only to one of the inner or outer surfaces of the central plate portion 56A, and only to the other of the inner or outer surfaces of the side plate portion 56B, so that the connecting plates 53 do not face each other in the inner and outer directions of the lower sleeve 52. Furthermore, multiple connecting plates 53 fixed to the outer surface of the lower sleeve 52 may be integrated to form a connecting sleeve, or multiple connecting plates 53 fixed to the inner surface of the lower sleeve 52 may be integrated to form a connecting sleeve. Furthermore, the connecting plates 53 facing each other on the inside and outside may be connected at an intermediate position in the vertical direction to form an H-shaped connecting member, and the upper end of the lower sleeve 52 may be fitted into the inside of the lower groove of the connecting member and fixed with, for example, adhesive, and the lower end of the upper sleeve 51 may be fitted into the upper groove of the connecting member, thereby connecting the upper sleeve 51 and the lower sleeve 52.

[0038] As shown in Figure 8A, the lid 60 has a structure in which a foamed resin cushioning member 62 is fixed to the inner surface of a lid body 61 which is a molded resin product. As shown in Figure 9, the lid body 61 has a structure in which a side wall 61B hangs down from the outer edge of a rectangular, horizontal main plate portion 61A. In addition, a plurality of rectangular protrusions 61C protrude from the upper surface of the main plate portion 61A. The cushioning member 62 is fixed to the lower surface of the main plate portion 61A at a position away from the side wall 61B. In addition, as shown in Figure 8B, the lower surface of the cushioning member 62 has an uneven shape corresponding to the luggage 90A, 90B supported by the support members 20A, 20B, and contacts the luggage 90A, 90B from above and from the side in the first horizontal direction H1. The cushioning member 62 can be attached and detached to the inner surface of the main plate portion 61A by hook and loop fasteners, for example, and can be changed according to the shape of the luggage 90A, 90B.

[0039] This concludes the explanation of the configuration of the conveying device 10 in this embodiment. Next, the effects of the conveying device 10 will be explained. Packing for conveying luggage 90A and 90B with the conveying device 10 is carried out as follows.

[0040] Once the pallet 80 is transported to the packing area by forklift, the Dunnage 11 is first placed on the pallet 80. Since the Dunnage 11 is lightweight, the loading of the Dunnage 11 onto the pallet 80 can be easily done by hand.

[0041] Next, the cargo 90A is placed on the support member 20A, and the cargo 90B is placed on the support member 20B. To do this, a pair of forks of the forklift are adjusted to be spaced apart so that they can be inserted into the second fork insertion holes 22 of the support member 20A. Then, a pair of forks are inserted from the first horizontal direction H1 below the housing 91 of the cargo 90A, which is lifted off the floor by the casters 92, and the cargo 90A is lifted up. The pair of forks are then received into the second fork insertion holes 22 of the support member 20A, the casters 92 of the cargo 90A are housed in the caster housing recesses 25 on the support member 20A, and the pair of forks are lowered so that the lower end of the housing 91 of the cargo 90A is fitted inside the side support portion 23 of the support member 20A, causing the lower surface of the housing 91 to contact the lower support portion 24. This completes the loading of the cargo 90A onto the support member 20A. Similarly, the cargo 90B is placed on the support member 20B. Since the support members 20A and 20B are lightweight, they can also be manually positioned directly beneath the cargo 90A and 90B, which have been lifted by a forklift, and the cargo 90A and 90B can then be lowered onto them.

[0042] Next, the support member 20A is placed on the dunnage 11 along with the cargo 90A. To do this, the pair of forks of the forklift are adjusted to a distance that allows them to be inserted into the pair of first fork insertion holes 21 of the support member 20A. Then, the pair of forks are inserted into the pair of first fork insertion holes 21, and the support member 20A is lifted up along with the cargo 90A, so that the support member 20A is positioned directly above one of the support member mounting sections 11R of the dunnage 11.

[0043] At this time, the operator of the forklift can use the outer surface opening 26K of the support member 20A visible from between the pair of forks and the vertical protrusion 16A of the first positioning protrusion 16 as first marks, and align the support member 20A in the second horizontal direction H2 such that they are at the same position in the second horizontal direction H2. Further, the outer surface opening 27K of the second positioning recess 27 and the intersecting protrusion 17C of the second positioning protrusion 17 can be used as second marks to perform alignment in the first horizontal direction H1 such that they are at the same position in the first horizontal direction H1. Then, when the support member 20A is lowered, the first positioning recess 26 and the first positioning protrusion 16 engage with each other in a concave-convex fitting, and the second positioning recess 27 and the second positioning protrusion 17 engage with each other in a concave-convex fitting, whereby the support member 20A is two-dimensionally positioned with respect to the dunnage 11. Further, the support member 20B is also mounted on the remaining support member mounting portion 11R of the dunnage 11 in the same manner as the support member 20A, and is two-dimensionally positioned with respect to the dunnage 11.

[0044] In view of the fact that when the support members 20A and 20B are placed on the support member mounting portion 11R, as shown in FIG. 6, they fit exactly between the vertical protrusions 17A of the pair of second positioning protrusions 17 in the second horizontal direction H2, alignment of the support members 20A and 20B in the second horizontal direction H2 above the support member mounting portion 11R may use the outer side surfaces at both ends of the support members 20A and 20B in the second horizontal direction H2 and the pair of vertical protrusions 17A as first marks. Further, as shown in the figure, in consideration that one end of the vertical protrusion 16A of the first positioning protrusion 16 and one end of the pair of recesses 14U are located substantially directly below the outer side surfaces of the support members 20A and 20B at the center and both end portions of the support members 20A and 20B in the second horizontal direction H2, these may be used as marks for alignment in the first horizontal direction H1. Further, instead of the second positioning recess 27, the protrusion 27T directly above it may be used as a mark. Furthermore, in order to use the protrusion 27T as a mark, the protrusion 27T may be made as thin as possible within a range allowed by strength, or a protrusion or a recess may be formed on the protrusion 27T, or a visibly colored mark may be provided to make it usable as a mark.

[0045] As shown in FIG. 7, after the support members 20A, 20B and the cargo 90A, 90B are loaded onto the dunnage 11, as shown in FIG. 9, the lower sleeve 52 is placed on the outer edge portion of the dunnage 11 and fitted inside the outer edge protrusion 15 of the dunnage 11. Further, the first outer edge-side protrusion 19A, the second outer edge-side protrusion 19B, and the vertical protrusion 17A of the second positioning protrusion 17 (see FIGS. 2 and 3) are fitted inside the lower sleeve 52. This suppresses inward deformation of the lower sleeve 52.

[0046] Next, the upper sleeve 51 is mounted on the lower sleeve 52 and fitted between the plurality of connecting plates 53 fixed to the upper portion of the lower sleeve 52.

[0047] Next, as shown in FIGS. 8A and 8B, a lid body 60 is mounted on the upper sleeve 51, a side wall 61B of the lid body 60 is fitted to the outside of the upper end portion of the upper sleeve 51, and a buffer member 62 fixed to the inner surface of the lid body 60 is pressed against the cargo 90A and 90B. Then, a pair of belts (not shown) are passed through the pair of fork insertion holes 81 of the pallet 80, and are routed between the rectangular protrusions 61C on the upper surface of the lid body 60 and tightened. As described above, the packing work for the cargo 90A and 90B by the conveyance tool 10 is completed.

[0048] The unpacking work for taking out the cargo 90A and 90B from the conveyance tool 10 is performed in the reverse order of the above packing work. Here, as shown in FIG. 6, at least one of the pair of first fork insertion holes 21 of the support members 20A and 20B is offset in the second horizontal direction H2. Accordingly, when a fork is inserted into the pair of first fork insertion holes 21 of one support member 20A among the support members 20A and 20B, it is possible to prevent such a problem that the tip of the fork accidentally enters the pair of first fork insertion holes 21 of the other support member 20B, and is lifted up in that state to tilt the other support member 20B and cause cargo collapse. Further, since there is no upwardly protruding protrusion in a portion of the dunnage 11 facing the first fork insertion holes 21, the fork can be smoothly inserted into the first fork insertion holes 21.

[0049] Furthermore, as shown in Figure 6, the recess 14U located in the extension region of the first fork insertion hole 21 of the dunnage 11, or the flat region without the recess 14U, can be used as a guide when inserting the fork into the first fork insertion hole 21. Alternatively, the first outer edge projection 19A or the high portion 15B of the outer edge projection 15, located to the side of the extension region of the first fork insertion hole 21, can be used as a guide, or the side surface of the first outer edge projection 19A (reference numeral 19G in Figure 6) or the stepped surface between the high portion 15B and the low portion 15A of the outer edge projection 15 (reference numeral 15G in Figure 6) can be used as a guide surface when inserting the fork into the first fork insertion hole 21.

[0050] Furthermore, after the cargo 90A and 90B are removed, as shown in Figure 10, the transport device 10 has support members 20A and 20B placed on the dunnage 11, and only the lower sleeve 52 of the sleeve 50 is in an upright position on the outer edge of the dunnage 11. The upper sleeve 51 is then separated into a pair of sleeve divisions 51A and folded, and placed on the support members 20A and 20B. The upper opening of the lower sleeve 52 is then closed with the lid 60. As a result, the entire transport device 10 is made compact, saving space when the transport device 10 is not in use.

[0051] As described above, the support members 20A and 20B of the transport device 10 in this embodiment are provided with a pair of first fork insertion holes 21 for lifting the support members 20A and 20B with a forklift, and a second fork insertion hole 22 for lifting the cargo 90A and 90B. This allows the forklift used to transport the pallet 80 to be used to load the cargo 90A and 90B onto the support members 20A and 20B, and to load the support members 20A and 20B with the cargo 90A and 90B onto the dunnage 11. This eliminates the need for crane work for packing, making packing easier than before.

[0052] Furthermore, when the support members 20A and 20B are placed on the dunnage 11, the first positioning recesses 26 and 2 positioning recesses 27 of the support members 20A and 20B engage with the first positioning protrusions 16 and 2 positioning protrusions 17 of the dunnage 11 in a concave-concave manner, thereby positioning the support members 20A and 20B relative to the dunnage 11. The first positioning recesses 26 and 2 positioning recesses 27 have openings not only on the lower surface of the support members 20A and 20B but also on the outer surface, and the first positioning protrusions 16 and 2 positioning protrusions 17 are exposed from the outer surface openings 26K and 27K of the first positioning recesses 26 and 2 positioning recesses 27.

[0053] As a result, when placing the support members 20A and 20B onto the dunnage 11 with a forklift, the outer surface opening 26K of the first positioning recess 26 and the first positioning protrusion 16 can be used as first markers to align the support members 20A and 20B with respect to the dunnage 11 in the second horizontal direction H2, and the outer surface opening 27K of the second positioning recess 27 and the second positioning protrusion 17 can be used as second markers to align the support members 20A and 20B with respect to the dunnage 11 in the first horizontal direction H1. In other words, the positioning operation when loading the support members 20A and 20B onto the dunnage 11 with a forklift can be easily performed.

[0054] Furthermore, in the conveying device 10 of this embodiment, the inner upper surface of the first fork insertion hole 21 and the inner lower surface of the second fork insertion hole 22 are arranged so that they do not overlap in the vertical direction, thereby suppressing the reduction in strength of the support members 20A and 20B due to the formation of the first fork insertion hole 21 and the second fork insertion hole 22.

[0055] Furthermore, the Dunnage 11 has a plurality (two) of support member mounting sections 11R on which support members 20 can be placed, and the first positioning protrusion 16 and the second positioning protrusion 17 have a rotationally symmetrical shape and a common shape between the two support member mounting sections 11R. On the other hand, the support members 20 are provided in multiple types (at least two types of support members 20A, 20B) with different upper surface shapes, and the first positioning recess 26 and the second positioning recess 27 have a rotationally symmetrical shape and a common shape among the plurality of support members 20A, 20B. As a result, the type and orientation of the support members 20A, 20B placed on the Dunnage 11 can be arbitrarily selected, so that, for example, the overall center of gravity of multiple loads 90A, 90B supported by multiple support members 20A, 20B can be positioned near the center of the Dunnage 11.

[0056] [Second Embodiment] The conveying device of this embodiment is shown in Figure 11 and differs from the first embodiment in that a gap 20C is provided between two support members 20A and 20B placed on the Dunnage 11, and a stopper plate 20P is provided that is received in the gap 20C. The stopper plate 20P covers the openings at one end of the first fork insertion hole 21 and the second fork insertion hole 22 of both support members 20A and 20B.

[0057] According to the configuration of this embodiment, when the intention is to insert the forks into the first fork insertion hole 21 or the second fork insertion hole 22 of only one of the support members 20A or 20B, the tip of the fork may accidentally enter the other first fork insertion hole 21 or the second fork insertion hole 22, and lifting the load in that state may cause it to collapse, thus preventing such problems.

[0058] [Third Embodiment] The conveying device of this embodiment is shown in Figure 12 and differs from the first embodiment only in that the dunnage 11V is provided with a pair of stopper protrusions 18. These pair of stopper protrusions 18 rise from the center of the first horizontal direction H1 on the dunnage 11V, are fitted between the support members 20A and 20B on the dunnage 11V, and cover the opening at one end of the first fork insertion hole 21 of both support members 20A and 20B.

[0059] [Fourth Embodiment] Although not shown in the figures, this embodiment differs from the first embodiment in the arrangement of the pair of first fork insertion holes 21 in the support members 20A and 20B. Specifically, in this embodiment, the pair of first fork insertion holes 21 in the two support members 20A and 20B are at the same interval, and the center between the pair of first fork insertion holes 21 is offset in the second horizontal direction H2 with respect to the center of the second horizontal direction H2 of the support members 20A and 20B. Preferably, the amount of this offset is greater than or equal to the width of the first fork insertion hole 21.

[0060] With this structure, when support members 20A and 20B are placed on the dunnage 11 in the same orientation, the first fork insertion holes 21 of the two support members 20A and 20B are aligned in a straight line. On the other hand, when the two support members 20A and 20B are placed on the dunnage 11 in different orientations, the first fork insertion holes 21 of the two support members 20A and 20B are offset from each other. This makes it possible to arbitrarily select between an arrangement pattern in which the two support members 20A and 20B can be lifted at once with a fork, and an arrangement pattern in which the two support members 20A and 20B cannot be lifted at once with a fork.

[0061] [Other Embodiments] In the first embodiment described above, the second fork insertion holes 22 between the two support members 20A and 20B placed on the dunnage 11 were configured to overlap when viewed from the first horizontal direction H1. However, the second fork insertion holes 22 of the support members 20A and 20B may be offset in the vertical direction or in the second horizontal direction H2, so that they do not overlap when viewed from the first horizontal direction H1.

[0062] In the configuration of the second embodiment described above, the stopper plate 20P may be omitted, and a gap 20C may be provided between the support members 20A and 20B. With this configuration, it is possible to confirm whether the fork has been inserted across the first fork insertion hole 21 or the second fork insertion hole 22 of the two support members 20A and 20B by whether or not the fork can be visually seen through the gap 20C.

[0063] In the first to fourth embodiments described above, the number of support members 20 that can be placed on the dunnage 11 was two, but there may be three or more, or there may be one.

[0064] The conveying device 10 of the first embodiment includes a sleeve 50 and a lid 60, but it does not have to include a sleeve 50 and a lid 60. Also, the sleeve 50 does not have to be divided into an upper sleeve 51 and a lower sleeve 52. Furthermore, even if the sleeve 50 is divided into an upper sleeve 51 and a lower sleeve 52, they may not be divided into a pair of sleeve divisions 51A and a pair of sleeve divisions 52A.

[0065] In the first embodiment described above, the size of the intersecting projection 17C in the first horizontal direction H1 is larger than the size of the transverse projection 17B in the first horizontal direction H1, but it may be the same or smaller. Alternatively, instead of the intersecting projection 17C, a recessed portion lower than the entire vertical projection 17A may be provided at the intersection of the vertical projection 17A of the second positional projection 17 with the transverse projection 17B, or the vertical projection 17A may not have an intersecting projection 17C or a recessed portion, and the structure may simply consist of the vertical projection 17A and the transverse projection 17B intersecting.

[0066] In addition to the structures of the embodiments described above, the support member mounting portion 11R of the dunnage 11 may be provided with recesses, protrusions, or marks that can be used as markers for aligning the support members 20A and 20B.

[0067] <Note> The following describes the features extracted from the above embodiment, showing their effects as necessary. For ease of understanding, the reference numerals of the corresponding specific components in the above embodiment will be indicated in parentheses as appropriate, but these features are not limited to the specific components indicated in parentheses.

[0068] [Feature 1] A dunnage (11, 11V) placed on a pallet (80), a foamed resin support member (20, 20A, 20B) placed on the dunnage (11, 11V) to support the load (90, 90A, 90B) from below, a pair of first fork insertion holes (21) formed in the support member (20, 20A, 20B) for lifting the support member (20, 20A, 20B) with a forklift, and the support member (20, 20 A conveying device (10) comprising: a second fork insertion hole (22) formed in A, 20B; a first positioning recess (26) formed between the pair of first fork insertion holes (21) of the support members (20, 20A, 20B) and opening to the outer surface and bottom surface of the support members (20, 20A, 20B); and a first positioning projection (16) formed in the dunnage (11, 11V) that engages with the first positioning recess (26) in a recessed and concave manner and is exposed from an opening (26K) on the outer surface of the first positioning recess (26).

[0069] The transport device of Feature 1 comprises a dunnage placed on a pallet and a support member that supports the load from below on the dunnage. The support member has a pair of first fork insertion holes for lifting the support member with forks and a second fork insertion hole for lifting the load. This allows the operation of placing the load on the support member and the operation of placing the load-laden support member onto the dunnage to be performed using a forklift that transports pallets, eliminating the need for crane operation for packing and making packing easier than before. Furthermore, when the support member is placed on the dunnage, the support member is positioned relative to the dunnage by the engagement of a first position-resolving recess in the support member and a first position-resolving projection in the dunnage. Here, the first position-resolving recess is located between a pair of first fork insertion holes in the support member and has openings not only on the bottom surface of the support member but also on the outer surface. The first position-resolving projection in the dunnage is exposed from the opening on the outer surface of the first position-resolving recess (hereinafter referred to as the "outer surface opening"). As a result, when placing the support member on the dunnage with a forklift, the outer surface opening of the first positioning recess and the first positioning protrusion can be used as first markers, and the support member can be aligned with the dunnage by aligning these first markers. In other words, the positioning operation when loading the support member onto the dunnage with a forklift can be easily performed. Furthermore, for the strength of the support member, it is preferable that the inner upper surface of the pair of first fork insertion holes and the inner lower surface of the second fork insertion hole are not arranged to overlap in the vertical direction, and it is even more preferable that the entire pair of first fork insertion holes and the entire second fork insertion hole are arranged to not overlap in the vertical direction.

[0070] [Feature 2] The conveying device (10) according to Feature 1, comprising: a second positioning recess (27) formed in two locations on the support members (20, 20A, 20B) sandwiching the pair of first fork insertion holes (21), and opening on the outer surface and bottom surface of the support members (20, 20A, 20B) facing in a direction intersecting the pair of first fork insertion holes (21); and a second positioning projection (17) formed on the dunnage (11, 11V), which engages with the second positioning recess (27) in a concave-concave manner and is exposed from the opening (27K) on the outer surface of the second positioning recess (27).

[0071] According to the configuration of Feature 2, when placing the support member on the dunnage, when viewed from the direction in which the first fork insertion hole extends, the outer surface opening of the first positioning recess and the first positioning protrusion are used as first markers, and when viewed from the direction intersecting the first fork insertion hole, the outer surface opening of the second positioning recess and the second positioning protrusion are used as second markers. The support member can be aligned with the dunnage by aligning these first markers with each other and these second markers with each other. This makes it easier to position the support member in two dimensions relative to the dunnage, improving work efficiency.

[0072] [Feature 3] The conveying device (10) according to Feature 2, wherein the second positioning projection (17) is formed to protrude from the opening (27K) on the outer surface of the second positioning recess (27).

[0073] According to the configuration of Feature 3, the positional relationship between the outer surface opening of the second positioning recess and the second positioning protrusion can be visually confirmed without moving to a position directly facing the outer surface opening of the second positioning recess.

[0074] [Feature 4] The conveying device (10) according to Feature 2 or 3, wherein the dunnage (11, 11V) has a plurality of support member mounting portions (11R) on which the support members (20, 20A, 20B) can be placed, the first positioning projection (16) and the second positioning projection (17) have a rotationally symmetric shape and a common shape among the plurality of support member mounting portions (11R), the support members (20, 20A, 20B) are provided in a plurality of types with different upper surface shapes, and the first positioning recess (26) and the second positioning recess (27) have a rotationally symmetric shape and a common shape among the plurality of types of support members (20, 20A, 20B).

[0075] According to the configuration of Feature 4, the type and orientation of the support members placed on the dunnage can be arbitrarily selected, and the overall center of gravity of multiple loads supported by multiple support members can be positioned near the center of the dunnage. Note that the first positioning projection and the second positioning projection do not have to be the same shape as long as they can engage with the same first positioning recess and second positioning recess in common. Similarly, the first positioning recess and the second positioning recess do not have to be the same shape as long as they can engage with the same first positioning projection and second positioning projection in common.

[0076] [Feature 5] The conveying device (10) according to any one of features 1 to 4, wherein the dunnage (11, 11V) is capable of supporting two support members (20, 20A, 20B), and the pair of first fork insertion holes (21) are arranged such that at least one of the first fork insertion holes (21) is offset from the other between the two support members (20, 20A, 20B) placed on the dunnage (11, 11V).

[0077] According to the configuration of Feature 5, when lifting the two support members on the dunnage one by one with a fork, it is prevented that the tip of the fork inserted into the first fork insertion hole of the first support member will accidentally enter the first fork insertion hole of the second support member.

[0078] [Feature 6] The Dunnage (11, 11V) has two support member mounting sections (11R) on which the support members (20, 20A, 20B) can be placed, and the first positioning protrusions (16) of the two support member mounting sections (11R) have a rotationally symmetric shape, and when the two support members (20, 20A, 20B) are placed on the Dunnage (11, 11V) in the same orientation, the two support members (2 The conveying device (10) according to any one of the features 1 to 4, wherein the first fork insertion holes (21) of the two support members (20, 20A, 20B) are aligned in a straight line, while when the two support members (20, 20A, 20B) are placed on the dunnage (11, 11V) in different orientations, the first fork insertion holes (21) of the two support members (20, 20A, 20B) are offset from each other.

[0079] According to the configuration of Feature 6, it is possible to arbitrarily select between an arrangement pattern in which the two support members can be lifted at once with the fork, and an arrangement pattern in which the two support members cannot be lifted at once with the fork.

[0080] [Feature 7] The transport device (10) according to any one of features 1 to 6, wherein the dunnage (11, 11V) is capable of supporting two support members (20, 20A, 20B), and the second fork insertion hole (22) is positioned to be offset from each other between the two support members (20, 20A, 20B) placed on the dunnage (11, 11V).

[0081] According to the configuration of Feature 7, when lifting two loads supported by two support members on the dunnage one by one with a fork, it is prevented that the tip of the fork inserted into the second fork insertion hole of the first support member will accidentally enter the second fork insertion hole of the second support member.

[0082] [Feature 8] The transport device (10) according to any one of the features 1 to 7, wherein the dunnage (11, 11V) is capable of supporting two support members (20, 20A, 20B), and a gap (20C) is formed between the two support members (20, 20A, 20B) placed on the dunnage (11, 11V), allowing the fork passing through the first fork insertion hole (21) of either of the support members (20, 20A, 20B) to be visible.

[0083] According to the configuration of Feature 8, when lifting the two support members on the dunnage one by one with a fork, it is possible to visually confirm whether the tip of the fork inserted into the first fork insertion hole of the first support member has mistakenly entered the first fork insertion hole of the second support member.

[0084] [Feature 9] The conveying device (10) according to any one of features 1 to 7, wherein the dunnage (11, 11V) is capable of supporting two support members (20, 20A, 20B), a gap (20C) is formed between the two support members (20, 20A, 20B) placed on the dunnage (11, 11V), and a stopper plate is provided that is received in the gap (20C) and can cover the opening of at least one of the pair of first fork insertion holes (21).

[0085] According to the configuration of Feature 9, it produces the same effect as Feature 5.

[0086] [Feature 10] The conveying device (10) according to any one of features 1 to 7, wherein the dunnage (11, 11V) is capable of supporting two support members (20, 20A, 20B), and has a stopper projection (18) that protrudes from the dunnage (11, 11V), is sandwiched between the two support members (20, 20A, 20B), and overlaps the opening of the first fork insertion hole (21).

[0087] According to the configuration of Feature 10, it produces the same effect as Feature 5.

[0088] [Feature 11] The conveying device (10) according to any one of features 1 to 10, wherein the outer edge of the dunnage (11, 11V) is provided with marking grooves (14U, 19A) to serve as a marker for the first fork insertion hole (21).

[0089] [Feature 12] The conveying device (10) according to Feature 11, wherein the support members (20, 20A, 20B) come in two types, each having a different position of the first fork insertion hole (21), the marking grooves (14U) for one type of support member (20, 20A, 20B) being a recess located below the extended region of the first fork insertion hole (21), and the marking grooves (19A) for the other type of support member (20, 20A, 20B) being a projection adjacent to the extended region of the first fork insertion hole (21) from the side.

[0090] According to the configuration of features 11 and 12, in addition to the first marker described above, when placing the support member on the dunnage, the marker protrusions formed on the outer edge of the dunnage as markers for the first fork insertion hole, and the first fork insertion hole itself can be used as markers for aligning the support member and the dunnage. In other words, the degree of freedom in selecting markers is increased.

[0091] [Feature 13] The conveying device (10) according to any one of features 1 to 12, wherein a guide projection (19A) is formed on the outer edge of the dunnage (11, 11V), the guide projection having a guide surface located in substantially the same plane as the inner surface of the first fork insertion hole (21) of the support member (20, 20A, 20B) placed on the dunnage (11, 11V).

[0092] According to the configuration of Feature 13, the fork can be easily inserted into the first fork insertion hole of the support member on the dunnage by utilizing the guide surface of the guide projection.

[0093] [Feature 14] The conveying device (10) according to any one of features 1 to 13, wherein the pair of first fork insertion holes (21) have a structure that opens to the lower surface of the dunnage (11, 11V), and the dunnage (11, 11V) does not have any protrusions that project inward into the pair of first fork insertion holes (21).

[0094] According to the configuration of Feature 14, the fork can be smoothly inserted into the first fork insertion hole.

[0095] [Feature 15] A lower sleeve (52) that stands upright on the outer edge of the dunnage (11, 11V) and surrounds the support members (20, 20A, 20B), a fitting projection (15) formed on the dunnage (11, 11V) that fits into the lower end of the lower sleeve (52), and an upper sleeve connected to the upper part of the lower sleeve (52) that stands upright on the lower sleeve (52) and surrounds the load (90, 90A, 90B) A transport device (10) according to any one of the features 1 to 14, comprising a sleeve (51) and a lid (60) that closes the upper surface of the upper sleeve (51), wherein the upper sleeve (51) is foldable, and the lower sleeve (52) can close its upper opening with the lid (60) when it houses the folded upper sleeve (51) and the support members (20, 20A, 20B).

[0096] According to the configuration of Feature 15, luggage can be protected by covering it with the lower sleeve, upper sleeve, and lid, and the upper sleeve can be folded and stored inside the lower sleeve, thus saving space when not in use.

[0097] [Feature 16] The conveying device (10) according to Feature 15, comprising a connecting member having an H-shaped cross-section and a lower groove portion and an upper groove portion, wherein the lower sleeve (52) and the upper sleeve (51) are connected by fitting their respective ends into the lower groove portion and the upper groove portion.

[0098] [Feature 17] The conveying device (10) according to Feature 15, wherein a connecting sleeve or connecting plate (53) is fixed to overlap with both or one of the outer and inner surfaces of one end of the lower sleeve (52) or the upper sleeve (51) and extends from the end, and the connecting sleeve or connecting plate (53) is fitted to the other end to connect the lower sleeve (52) and the upper sleeve (51). [Feature 18] The conveying device (10) according to any one of the features of Feature 15 to 17, wherein the upper sleeve (51) is divided into two sleeve segments (51A), and each sleeve segment (51A) is foldable.

[0099] As a connecting structure between the lower part of the upper sleeve and the upper part of the lower sleeve, one of their opening edges may be widened or narrowed in a stepped manner to fit with the other opening edge, or they may be stacked vertically and connected with tape, or they may be configured as in features 16 and 17. In addition, the upper sleeve may be divided into two parts, a pair of sleeve segments, as in feature 18, and configured to be foldable, or the corners between each side wall of the upper sleeve may be made into a hinge structure, and a hinge portion may be provided in the center of a pair of opposing walls of the upper sleeve, so that the entire upper sleeve can be folded by folding the pair of opposing walls inward in half.

[0100] While this specification and its drawings disclose specific examples of the technology included in the claims, the technology described in the claims is not limited to these specific examples, but also includes various modifications and changes to these examples, as well as parts of the examples taken individually.

[0101] 10 Conveyor 11, 11V Dunnage 11R Support member mounting section 14U Recess (marking protrusion) 15 Outer edge projection (fitting projection) 16 First positioning projection 17 Second positioning projection 18 Stopper projection 19A Outer edge projection (guide projection, marking protrusion) 20, 20A, 20B Support member 20P Stopper plate 20C Gap 21 First fork insertion hole 22 Second fork insertion hole 26 First positioning recess 26K, 27K Outer surface opening 27 Second positioning recess 50 Sleeve 51 Upper sleeve 52 Lower sleeve 53 Connecting plate 60 Cover 80 Pallet 90, 90A, 90B Cargo

Claims

1. A conveying device comprising: a dunnage placed on a pallet; a support member made of foamed resin placed on the dunnage to support a load from below; a pair of first fork insertion holes formed in the support member for lifting the support member with a forklift; a second fork insertion hole formed in the support member for lifting the load with a forklift; a first positioning recess formed in the support member between the pair of first fork insertion holes and opening to the outer surface and bottom surface of the support member; and a first positioning projection formed in the dunnage that engages with the first positioning recess in a concave-concave manner and is exposed from the opening on the outer surface of the first positioning recess.

2. The conveying device according to claim 1, comprising: a second positioning recess formed in two locations on the support member, flanking the pair of first fork insertion holes, and opening on the outer surface and bottom surface of the support member facing in a direction intersecting the pair of first fork insertion holes; and a second positioning projection formed in the dunnage, which engages with the second positioning recess in an uneven manner and is exposed from the opening on the outer surface of the second positioning recess.

3. The conveying device according to claim 2, wherein the second positioning projection is formed to protrude from an opening on the outer surface of the second positioning recess.

4. The conveying device according to claim 2 or 3, wherein the dunnage has a plurality of support member mounting portions on which the support member can be placed, the first positioning projection and the second positioning projection have a rotationally symmetric shape and a common shape among the plurality of support member mounting portions, the support member is provided in a plurality of types with different upper surface shapes, and the first positioning recess and the second positioning recess have a rotationally symmetric shape and a common shape among the plurality of types of support members.

5. The conveying device according to any one of claims 1 to 4, wherein the dunnage is capable of supporting two of the support members, and the pair of first fork insertion holes are arranged such that at least one of the first fork insertion holes is offset from the other between the two support members placed on the dunnage.

6. The conveying device according to any one of claims 1 to 4, wherein the dunnage has two support member mounting portions on which the support member can be placed, and the first positional contact portions of the two support member mounting portions have a rotationally symmetric shape, and when the two support members are placed on the dunnage in the same orientation, the first fork insertion holes of the two support members are aligned in a straight line, while when the two support members are placed on the dunnage in different orientations, the first fork insertion holes of the two support members are offset from each other.

7. The conveying device according to any one of claims 1 to 6, wherein the dunnage is capable of supporting two of the support members, and the second fork insertion hole is arranged to be offset from each other between the two support members placed on the dunnage.

8. The conveying device according to any one of claims 1 to 7, wherein the dunnage is capable of supporting two support members, and a gap is formed between the two support members placed on the dunnage, allowing a fork passing through the first fork insertion hole of either of the support members to be visible.

9. The conveying device according to any one of claims 1 to 7, wherein the dunnage is capable of supporting two support members, and a gap is formed between the two support members placed on the dunnage, allowing a fork passing through the first fork insertion hole of either of the support members to be visible, and the dunnage is provided with a stopper plate that is received in the gap and capable of covering the opening of at least one of the pair of first fork insertion holes.

10. The conveying device according to any one of claims 1 to 7, wherein the dunnage is capable of supporting two of the support members, and comprises a stopper projection that protrudes from the dunnage, is sandwiched between the two support members, and overlaps the opening of the first fork insertion hole.

11. The conveying device according to any one of claims 1 to 10, wherein the outer edge of the dunnage is provided with marking grooves and protrusions to serve as a marker for the first fork insertion hole.

12. The conveying device according to claim 11, wherein the support member is of two types, each having a different position of the first fork insertion hole, and the marking grooves for one type of support member are recesses located below the extended region of the first fork insertion hole, and the marking grooves for the other type of support member are protrusions adjacent to the extended region of the first fork insertion hole from the side.

13. The conveying device according to any one of claims 1 to 12, wherein a guide projection is formed on the outer edge of the dunnage, having a guide surface located in substantially the same plane as the inner surface of the first fork insertion hole of the support member placed on the dunnage.

14. The conveying device according to any one of claims 1 to 13, wherein the pair of first fork insertion holes are structured to open to the lower surface of the dunnage, and the dunnage does not have any protrusions that project toward the pair of first fork insertion holes.

15. A conveying device according to any one of claims 1 to 14, comprising: a lower sleeve that stands upright on the outer edge of the dunnage and surrounds the support member; a fitting projection formed on the dunnage and fitted to the lower end of the lower sleeve; an upper sleeve connected to the upper part of the lower sleeve and standing upright on the lower sleeve to surround the load; and a lid that closes the upper surface of the upper sleeve, wherein the upper sleeve is foldable, and the lower sleeve can close its upper opening with the lid when it houses the folded upper sleeve and the support member.

16. The conveying device according to claim 15, comprising a connecting member having an H-shaped cross-section and having a lower groove portion and an upper groove portion, wherein the lower sleeve and the upper sleeve are connected by fitting their respective ends into the lower groove portion and the upper groove portion.

17. The conveying device according to claim 15, comprising a connecting sleeve or connecting plate that is fixed to overlap with both or one of the outer and inner surfaces of one end of the lower sleeve or the upper sleeve and protrudes from the end, wherein the connecting sleeve or connecting plate is fitted to the other end to connect the lower sleeve and the upper sleeve.

18. The conveying device according to any one of claims 15 to 17, wherein the upper sleeve is divided into two sleeve segments, and each sleeve segment is foldable.

Images