Large-sized box

Abstract

To provide a large-sized box capable of making a packed state stable, even if no fastening work is carried out with a plastic band, and of holding the packed state even during conveyance, storage, or the like.SOLUTION: A large-sized corrugated board box 1 for storing and packing an article 8 therein comprises: an outer shell part 6; a lid part 12 provided from above the outer shell part 6; and an auxiliary pad part 2 comprising a flat plate square-shaped pad substrate part 13, and pad extension piece parts 4a, 4b extending respectively from at least a pair of pad sides 14a, 14b facing each other at the pad substrate part 13, that is laid below the outer shell part 6. The large-sized corrugated board box 1 further comprises: a box part 3 laid below the outer shell part 6; the lid part 12 comprising extension piece parts 33; and a pallet 3 comprising a girder member 9, and bottom plate parts 11a, 11b.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a large box, and more particularly to a large cardboard box used for transporting and storing packed articles. [Background technology]

[0002] Conventionally, so-called "large boxes" have been widely used to carry various items such as various products produced in a factory or parts or materials used to manufacture the products from a production factory to a manufacturing factory, or to store the items in a storage location such as a warehouse for a predetermined period of time after or before manufacturing. These large boxes are made of a material with high strength so that they can be stacked in multiple layers with the items placed on them and can stably support heavy items during transportation.

[0003] For example, large boxes made of wood are widely used, and large boxes made of synthetic resin are also used. Furthermore, in recent years, large boxes made of corrugated cardboard, which has sufficient strength and advantages such as light weight, have also become widespread (for example, see Patent Document 1).

[0004] Details of a conventional large cardboard box 100 will be specifically described with reference to Fig. 10 and Fig. 11. Fig. 10 is an exploded perspective view showing a schematic configuration of the conventional large box 100, and Fig. 11 is an explanatory diagram showing an example of packaging an item 101 using the large box 100 of Fig. 10.

[0005] As shown in Figures 10 and 11, a conventional large cardboard box 100 is mainly composed of a plurality of girder members 102 arranged at a predetermined interval, a sheet-like (flat) bottom plate portion 103 laid on the underside of the girder members 102, a pallet 106 having a top plate portion 104 placed on the upper surface of the girder members 102, a box portion 105 stacked on top of the top plate portion 104 of the pallet 106, an outer shell portion 107 that forms the outer surface of the large box 100, and a lid portion 108 that is placed over the top of the outer shell portion 107.

[0006] Here, each of the components (configurations) of the above-mentioned pallet 106, box portion 105, outer shell portion 107, and lid portion 108 is formed by cutting sheet-like cardboard material into a predetermined shape, and then bending it or joining it with adhesive or the like.

[0007] The beam members 102 of the pallet 106 are configured as elongated bodies having a substantially rectangular prism shape formed by bonding together sheet-like corrugated cardboard materials using an adhesive or the like. A plurality of such beam members 102 are arranged at predetermined intervals. In the case of the large box 100 shown in Figures 10 and 11, four beam members 102 are used, but the number of beam members 102 is not particularly limited.

[0008] On the other hand, the bottom plate 103 and top plate 104 of the pallet 106 are each formed from a sheet-like rectangular cardboard material of the same shape, and are formed so that the length L1 (see Figure 10) of one side corresponds to the longitudinal length of the beam member 102, and the length L2 (see Figure 10) of the other side corresponds to the distance between a pair of beam members 102 located at the outermost positions of the multiple beam members 102 arranged at a predetermined interval.

[0009] In addition, in the large box 100 shown in Figures 10 and 11, the bottom plate portion 103 and the beam member 102, and the top plate portion 104 and the beam member 102 are joined and bonded together using adhesives or the like, in the same manner as the beam member 102 described above.

[0010] Furthermore, the box section 105 joined onto the top plate section 104 of the pallet 106 has a rectangular box base section 109 that approximately matches the top plate section 104, and hanging pieces 111 that are bent (hanging) upward from each of the base section sides 110a, 110b, 110c, and 110d of the box base section 109, and has a box shape with an opening section 112 that opens upward, in other words, a cross section that is approximately U-shaped and opens upward. An item 101 (see FIG. 11) or the like to be packed can be placed on the box base section 109 of the box section 105.

[0011] In addition, the large box 100 further includes a cardboard outer shell 107 and a lid 108 to protect the items 101 placed on the box portion 105 from external impacts from the horizontal and upward directions, to prevent the packed items 101 from being seen from the outside, and to enable the large boxes 100 with the items 101 packed therein to be transported and stored in a stacked state.

[0012] Outer shell portion 107 (sleeve) formed by connecting one ends of sheet-like cardboard material together and having a rectangular tubular shape with a rectangular cross section when viewed from above is disposed between box portion 105 and lid portion .

[0013] As a result, a storage space 113 surrounded by box base portion 109 and outer shell portion 107 is formed, and item 101 to be packed can be stored in storage space 113. Furthermore, by covering outer shell portion 107 from above with cardboard lid portion 108, the upper portion of storage space 113 is closed, and storage space 113 can be completely shielded from the outside (see FIG. 11). Here, outer shell portion 107 is placed on box portion 105 and stands upright, and is not joined to box portion 105 with an adhesive or the like.

[0014] As a result, as another configuration, a plastic band 114 (hereinafter simply referred to as a "P band 114") for fixing the lid portion 108 is passed between a pair of opposing girder members 102 along the longitudinal direction of the girder members 102, and the P band 114 is further fastened so as to fit around the top plate portion 104, box portion 105, outer shell portion 107, and lid portion 108 (see Figure 11).

[0015] As a result, the outer shell part 107 is fixed in a state in which it is fastened from above and below between the lid part 108 and the top plate part 104 / box part 105. In this way, by performing the fastening work with the P band 114, the packaging of the item 101 is completed, and the outer shell part 107 and the lid part 108 can protect the item 101 from external impacts and the like applied during transportation and storage, and further the upright state of the outer shell part 107 relative to the box part 105 can be maintained. In other words, the outer shell part 107 and the lid part 108 fastened and fixed with the P band 114 stabilize the packaging state of the item 101, and the transportation and storage of the item 101 can be reliably performed. Note that the conventional large box 100 shown in FIG. 11 shows an example in which the lid part 108 is fastened and fixed using two P bands 114, but the number of P bands 114 is not particularly limited.

[0016] Thus, in the case of a conventional large cardboard box 100, the fastening operation using P-bands 114 for fixing the outer shell portion 107 is essential in the packing operation of the article 101. [Prior art documents] [Patent documents]

[0017] [Patent Document 1] JP 2016-108021 A Summary of the Invention [Problem to be solved by the invention]

[0018] However, the above-mentioned conventional large cardboard boxes have the following problems: The above-mentioned P-band fastening work is required, and this work can be a heavy burden for workers who pack the items.

[0019] For example, when the item to be packed is large or heavy, it takes a lot of effort to pass the P-band between a pair of beam members or to fasten the P-band with a strong force, and the work itself may take a long time. As a result, it takes a lot of time to pack the item, the work efficiency of the fastening work decreases, or an excessive burden is imposed on the worker. In addition, in order to ensure the fastening and fixing, the number of P-bands used is generally two or more, which may further burden the worker.

[0020] Therefore, there has been a demand for a large box that can stably pack items without fastening them with P-bands and can maintain that packing state even during transportation, storage, etc.

[0021] In view of the above-mentioned circumstances, an object of the present invention is to provide a large box that can omit the fastening work using P-bands and maintain a stable packed state. [Means for solving the problem]

[0022] According to the present invention, a large box that solves the above problems is provided.

[0023] [1] A large cardboard box for storing and packaging items therein, comprising an outer shell portion, a lid portion placed over the outer shell portion, and an auxiliary pad portion placed below the outer shell portion and having a flat, rectangular pad base portion and pad extension piece portions each extending from at least a pair of opposing pad sides of the pad base portion.

[0024] [2] The large box described in [1] above, further comprising a box-shaped box portion having a flat rectangular box base portion and hanging pieces extending upward from each side of the box base portion of the box base portion, an opening portion opening upward, and the box portion being laid below the auxiliary pad portion.

[0025] [3] The large box described in [1] or [2], wherein the lid portion has a flat rectangular lid plate portion and a lid side piece portion extending from each of the lid plate portions and forming a lid portion side surface by bending the lid plate portion in a direction perpendicular to the lid plate portion, and further includes an extension piece portion extending from at least a pair of the lid side pieces facing each other.

[0026] [4] A large box as described in [2], further comprising a pallet having a plurality of beam members arranged at a predetermined interval, a flat rectangular bottom plate portion laid on the underside of the beam members, and a flat rectangular top plate portion placed on the upper surface of the beam members, wherein the box portion is joined onto the top plate portion of the pallet.

[0027] [5] The auxiliary pad portion is a large box as described in [1], in which a pair of opposing pad extension pieces are folded along the pad edges and overlapped on top of the pad substrate portion, so that the auxiliary pad portion can be stored inside the box portion.

[0028] [6] The large box described in [1], wherein the pad extension piece has a lower piece extending from the pad side of the pad substrate portion and an upper piece formed from the lower piece with a length shorter than the side length of the pad side, and is formed in an L-shape.

[0029] [7] The large box described in [2], wherein the pad extension piece has a folded piece that extends further from the upper end of the extension piece and can be folded back, and the folded piece that is folded back from the upper end of the extension piece is used to clamp and fix the upper end of the outer shell portion. Effect of the Invention

[0030] The large box of the present invention has the same structure as a conventional large cardboard box, but also includes an auxiliary pad section laid under the outer shell section, and these structures can be integrally formed by joining the outer shell section and the pad extension piece section of the auxiliary pad section, thereby fixing the outer shell section and the auxiliary pad section together. As a result, the fastening work using P-bands, which was previously necessary, can be omitted, and the efficiency of the work, such as shortening the packing work time, can be improved, and the burden on the worker can be reduced. [Brief description of the drawings]

[0031] [Figure 1] 1 is a development view showing the configuration of an auxiliary pad portion of a large box according to an embodiment of the present invention; [Diagram 2] 13 is an explanatory diagram showing the auxiliary pad section in a folded state housed in the box section; FIG. [Diagram 3] 13 is an explanatory diagram showing an auxiliary pad portion, an outer shell portion, and a pair of reinforcing frames in a state in which a pad extension piece portion housed in a box portion is erected. FIG. [Figure 4] 13 is an explanatory diagram showing the state in which the pad extension piece portion, the reinforcing frame, and the outer shell portion are fixed with tape material, and the lid portion. FIG. [Diagram 5] FIG. 1 is an explanatory diagram showing an example of packaging an item using a large box according to the present embodiment. [Figure 6] 13A and 13B are explanatory diagrams showing another example of the configuration of the auxiliary pad portion. [Figure 7] 13A and 13B are explanatory diagrams showing another example of the configuration of the auxiliary pad portion. [Figure 8] 13A and 13B are explanatory diagrams showing another example of the configuration of the auxiliary pad portion. [Figure 9] 9 is an explanatory diagram showing how the reinforcing frame and the outer shell portion are fixed by the auxiliary pad portion in FIG. 8. [Figure 10] FIG. 1 is an exploded perspective view showing a schematic configuration of a conventional large box. [Figure 11] FIG. 11 is an explanatory diagram showing an example of packaging of goods using the large box of FIG. 10. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0032] Hereinafter, an embodiment of the large box of the present invention will be described with reference to the drawings. Note that the large box of the present invention is not limited to the following embodiment, and various design changes, modifications, improvements, etc. can be made without departing from the scope of the present invention.

[0033] FIG. 1 is an exploded view showing the configuration of the auxiliary pad portion 2 of a large box 1 of one embodiment of the present invention, FIG. 2 is an explanatory diagram showing the auxiliary pad portion 2 in a folded state contained in a box portion 3, FIG. 3 is an explanatory diagram showing the auxiliary pad portion 2, outer shell portion 6, and a pair of reinforcing frames 5a, 5b in a state in which the pad extension pieces 4a, 4b contained in the box portion 3 are erected, FIG. 4 is an explanatory diagram showing the state in which the pad extension pieces 4a, 4b, the reinforcing frames 5a, 5b, and the outer shell portion 6 are fixed with tape material 7, and is an explanatory diagram showing the lid portion 12, and FIG. 5 is an explanatory diagram showing an example of packaging an item 8 using the large box 1 of this embodiment.

[0034] As shown primarily in Figures 1-5, a large box 1 according to one embodiment of the present invention is capable of storing and packing items 8, such as products, parts, or materials, in an internal storage space 26, and is characterized by mainly comprising an outer shell portion 6 and a lid portion 12, and further comprising an auxiliary pad portion 2 laid below the outer shell portion 6.

[0035] Furthermore, in addition to the above-mentioned configuration, the large box 1 of this embodiment is configured to include a pallet 35 having a girder member 9, a top plate portion 10, and bottom plate portions 11a, 11b, a box portion 3 interposed between the auxiliary pad portion 2 and the top plate portion 10 of the pallet 35, and a pair of reinforcing frames 5a, 5b arranged inside the outer shell portion 6.

[0036] Here, the configuration of the pallet 35 having the beam member 9, the top plate portion 10, and the bottom plate portions 11a and 11b, the box portion 3, and the outer shell portion 6 is the same as that of the conventional large box 100 already described. Therefore, for the sake of simplicity, some of the description of these configurations will be omitted.

[0037] 3, the pair of reinforcing frames 5a, 5b have a substantially U-shaped cross section consisting of three faces, and are arranged with the openings of the U-shape facing each other. The reinforcing frames 5a, 5b are inserted between the pad extension pieces 4a, 4b of the auxiliary pad portion 2, which is a characteristic configuration of the present invention, and the outer shell portion 6, and together with the outer shell portion 6, receive impacts and the like applied from the side, protecting the items 8 stored in the storage space 26, and further support the lid portion 12 from below together with the outer shell portion 6, thereby protecting the items 8 from impacts and the like applied from above the large box 1.

[0038] The pallet 35, box portion 3, auxiliary pad portion 2, pair of reinforcing frames 5a, 5b, outer shell portion 6, and lid portion 12 that constitute the large box 1 of this embodiment are all constructed using sheet-like or other such corrugated cardboard material, and each component is cut to a predetermined shape designed in advance, and further joined or attached with an adhesive or the like as necessary, or bent or folded at a predetermined angle along an edge at a predefined position.

[0039] The auxiliary pad portion 2, which is a characteristic feature of the large box 1 of this embodiment, is formed by cutting a sheet (flat) of cardboard material into a predetermined shape as shown in the expanded view of Figure 1, and has a flat, rectangular pad substrate portion 13 in the central portion, and further has a pair of pad extension piece portions 4a, 4b respectively extended from a pair of opposing pad sides 14a, 14b (corresponding to the parallel sides along the vertical direction of the paper in Figure 1) of the pad substrate portion 13.

[0040] The pad extension pieces 4a, 4b have lower pieces 27a, 27b extended to a length substantially equal to that of the pad sides 14a, 14b, and upper pieces 21a, 21b formed from the lower pieces 27a, 27b to a length shorter than the side length of the pad sides 14a, 14b, and are formed to have an L-shape. In the large box 1 of this embodiment, the side length of the upper pieces 21a, 21b is set to be approximately 1 / 2 of the side length of the lower pieces 27a, 27b.

[0041] Furthermore, the pad extension pieces 4a, 4b of the auxiliary pad portion 2 can be folded in a predetermined direction (toward the viewer in FIG. 1) along the pad sides 14a, 14b, and further folded so that the pad substrate portion 13 and the pad extension pieces 4a, 4b are overlapped with each other. That is, the pad extension pieces 4a, 4b can be folded from the development shown in FIG. 1 (see FIG. 2).

[0042] This allows the auxiliary pad section 2 to be accommodated inside the box section 3. Therefore, when the large box 1 of this embodiment is delivered, the section below the auxiliary pad section 2 is assembled to form a unit, as shown in Fig. 2, and a number of these units can be stacked on top of each other. The section above the auxiliary pad section 2 (reinforcing frames 5a, 5b, outer shell section 6, and lid section 12) can be delivered in a separately folded state. As a result, transportation costs are reduced and the transportation work is also made easier.

[0043] When assembling the large box 1 of this embodiment, the pad extension pieces 4a, 4b of the auxiliary pad portion 2 can be folded in a predetermined direction (corresponding to the front direction of the paper in FIG. 1) along the pad sides 14a, 14b, and perpendicular to the pad substrate portion 13. This allows the pad extension pieces 4a, 4b to be erected in a perpendicular direction with respect to the pad substrate portion 13 (see FIG. 3).

[0044] As shown in the development view of Fig. 1, the shapes of the pad extension pieces 4a, 4b that are extended to face each other across the pad substrate portion 13 are mirror images of each other. Therefore, even when the pad extension pieces 4a, 4b are folded as shown in Fig. 2, they do not interfere with each other. In other words, the pad extension pieces 4a, 4b do not overlap each other.

[0045] Further, as another configuration, the auxiliary pad portion 2 has V-shaped notches 15 at two locations on each of the other pad sides 14c, 14d (see FIG. 1) perpendicular to the pad sides 14a, 14b of the pad substrate portion 13. The notches 15 are formed for the purpose of alignment when bonding to the box substrate portion (details of which will be described later) in the state shown in FIG.

[0046] Meanwhile, the opposing sides 16a, 16b of the lower pieces 27a, 27b of the L-shaped pad extension pieces 4a, 4b are also provided with a substantially semi-elliptical cutout 17. The substantially semi-elliptical cutout 17 is provided in advance so that the above-mentioned V-shaped cutout 15 can be visually confirmed when the pad extension pieces 4a, 4b are folded so as to overlap with the pad substrate portion 13 (see FIG. 2, etc.).

[0047] Next, other configurations of the large box 1 of this embodiment will be specifically described. As described above, the basic configuration of the large box 1 of this embodiment is substantially the same as that of the conventional large box 100 already described (see Figs. 10 and 11).

[0048] The large box 1 of this embodiment mainly comprises a pallet 35 having a plurality of girder members 9 arranged at a predetermined interval, sheet-like bottom plate portions 11a, 11b laid on the underside of the girder members 9, and a top plate portion 10 placed on the upper surface of the girder members 9, a box portion 3 stacked on the top plate portion 10 of the pallet 35, an auxiliary pad portion 2 joined onto the box portion 3, a pair of reinforcing frames 5a, 5b abutting the outer shell portion 6 or arranged in a state sandwiched between the outer shell portion 6 and the pad extension piece portions 4a, 4b of the auxiliary pad portion 2, the outer shell portion 6 surrounding and covering the outer periphery of the pair of reinforcing frames 5a, 5b, and a lid portion 12 placed over the outer shell portion 6 from above.

[0049] More specifically, the beam members 9 of the pallet 35 are formed as elongated bodies having a substantially rectangular prism shape by bonding together sheet-like corrugated cardboard materials using an adhesive or the like. A plurality of such beam members 9 (see FIG. 2, etc.) are prepared and arranged at predetermined intervals. In the case of the large box 1 of this embodiment shown in FIG. 1-5, four beam members 9 are used, but the number of beam members 9 used is not particularly limited.

[0050] On the other hand, the bottom plate portions 11a, 11b and the top plate portion 10 of the pallet 35 are formed of sheet-like corrugated cardboard material having the same shape (rectangular shape), with one side having a length that matches the longitudinal direction of the beam members 9, and the other sides of the bottom plate portion 11a, etc. are formed to match the distance between a pair of beam members 9 located at the outermost positions of the multiple beam members 9 arranged at a predetermined interval (see lengths L1, L2 in FIG. 10). Note that, as shown in FIG. 2 and FIG. 3, the lengths of the respective sides may be made the same, and the bottom plate portion 11a, etc. may be configured as a square.

[0051] Furthermore, the large box 1 of this embodiment includes two bottom plate portions 11a, 11b, which are laminated together with an adhesive. By laminating the two bottom plate portions 11a, 11b together, the strength of the large box 1 itself, particularly the strength of the bottom plate portions 11a, 11b, can be improved.

[0052] Moreover, the box section 3 joined onto the top plate section 10 of the pallet 35 has a rectangular box base plate section (not shown) that roughly matches the top plate section 10, and hanging pieces 18 that are bent (hanging) upward from each base plate section side 29 of the box base plate section, and has a box shape with an opening 19 that opens upward, or in other words, a roughly U-shaped cross section with an opening 19 that opens upward. Furthermore, roughly semi-elliptical removal notches 28 are provided on parts of the pair of hanging pieces 18 that face each other to facilitate removal work.

[0053] The pad substrate 13 of the auxiliary pad 2 is placed on top of the box substrate of the box section 3 having a box-like shape and bonded with an adhesive. Most of the box substrate of the box section 3 is covered by the pad substrate 13 of the auxiliary pad 2, and is therefore not shown in Figs. 2 and 3. The article 8 to be packed is placed on the pad substrate 13 of the auxiliary pad 2.

[0054] As described above, the pad extension pieces 4a and 4b of the auxiliary pad portion 2 are formed to be foldable. Therefore, when the large box 1 is not in use or when the large box 1 is transported to a customer or the like who will use it, the pad extension pieces 4a and 4b of the auxiliary pad portion 2 are folded so as to overlap the pad substrate portion 13 as shown in FIG.

[0055] With this configuration, when the large box of the present invention is delivered, the partial components of the large box 1, such as the bottom plate portions 11a and 11b, the beam member 9, the top plate portion 10, the box portion 3, and the auxiliary pad portion 2, which are joined with an adhesive or the like, can be transported in a compactly folded state, and multiple such partial components can be stacked together. As a result, transport work at the time of delivery, etc., can be facilitated.

[0056] On the other hand, when packaging an article 8, the pad extension pieces 4a, 4b in the folded state of Fig. 2 are set up so as to be perpendicular to the pad substrate portion 13 (see Fig. 3). Here, the upper pieces 21a, 21b of the pad extension pieces 4a, 4b can be further folded outward (corresponding to the diagonally upward right direction and the diagonally downward left direction in Fig. 3) along the folding edges 20a, 20b provided near the center of the pad extension pieces 4a, 4b.

[0057] This widens the opening formed by the pad extension pieces 4a, 4b of the auxiliary pad portion 2, facilitating the work of placing the article 8 to be packed on the pad substrate portion 13. When the placement of the article 8 is completed, the outward folding state along the folding edges 20a, 20b is released.

[0058] Thereafter, a pair of cardboard reinforcing frames 5a, 5b, an outer shell 6, and a lid 12 are attached to protect the item 8 placed on the pad substrate 13 of the auxiliary pad 2 from external impacts from the horizontal and upward directions, to prevent the packaged item 8 from being seen from the outside, and to enable the large box 1 containing the items 8 to be transported or stored in a stacked state.

[0059] Specifically, with the item 8 placed on the pad substrate portion 13 (see Figure 3), a pair of reinforcing frames 5a, 5b are erected on the box substrate portion (not shown) of the box portion 3 at positions further outside the pad extension pieces 4a, 4b.

[0060] Here, the pair of reinforcing frames 5a, 5b formed by folding a sheet-like cardboard material are folded at two predetermined positions, and are configured to have three faces, and have an approximately U-shaped cross section when viewed from above. Therefore, the central face of the three faces of the reinforcing frames 5a, 5b is arranged along the longitudinal direction of the beam members 9, and the two end faces of the three faces are arranged along the arrangement direction of the beam members 9. Then, the reinforcing frames are erected on the box section 3 with the open sides of the approximately U-shaped shapes facing each other.

[0061] On the other hand, the outer shell 6 formed by connecting one end of the sheet-like cardboard material to each other and presenting a rectangular tubular shape with a rectangular cross section when viewed from above is arranged further outside the pair of reinforcing frames 5a, 5b that are erected, in other words, arranged so as to abut against the three faces that form the reinforcing frames 5a, 5b when the pair of reinforcing frames 5a, 5b are housed in the rectangular tube (see FIG. 4). That is, the reinforcing frames 5a, 5b are sandwiched between the outer shell 6 and the pad extension pieces 4a, 4b of the auxiliary pad 2.

[0062] As a result, an auxiliary pad portion 2 that supports the lower part of the article 8 and a storage space 26 that surrounds the sides of the article 8 with a triple layer configuration of the pad extension pieces 4a, 4b, the reinforcing frames 5a, 5b, and the outer shell portion 6 are formed, and the article 8 to be packed is stored in the storage space 26. As a result, as shown in Fig. 4, the sides of the article 8 have a structure in which the pad extension pieces 4a, 4b, the reinforcing frames 5a, 5b, and the outer shell portion 6 are lined up from the inside. Note that the areas where the pad extension pieces 4a, 4b are not provided are formed by two layers of the reinforcing frames 5a, 5b and the outer shell portion 6.

[0063] Furthermore, the positions of the upper ends 22 of the pad extension pieces 4a, 4b, the upper ends 23 of the reinforcing frames 5a, 5b, and the upper end 24 of the outer shell portion 6 are all formed to coincide with each other, i.e., to form so-called "face positions" (see Figure 4).

[0064] In this manner, with the positions of the respective upper ends aligned, the extension piece upper end 22, the reinforcing frame upper end 23, and the outer shell upper end 24 are joined with the tape material 7 to form the tape joint 25. That is, the pad extension piece portions 4a, 4b, the reinforcing frames 5a, 5b, and the outer shell portion 6 can be integrally fixed by the tape joint 25. As a result, the pad extension piece portions 4a, 4b are joined to the box portion 3 and the like located below, so that the reinforcing frames 5a, 5b, and the outer shell portion 6 are integrally connected to the bottom plate portions 11a, 11b.

[0065] Then, in a state where the item 8 to be packaged is accommodated in the accommodation space 26 surrounded by the pad substrate 13 and pad extension pieces 4a, 4b of the auxiliary pad 2, the reinforcing frames 5a, 5b, and the outer shell 6, the lid 12 is placed from above the outer shell 6 to close the upper part of the accommodation space 26 and completely shield the accommodation space 26 from the outside (see FIG. 5). This completes the packaging of the item 8.

[0066] Here, as shown in Figs. 4 and 5, the lid portion 12 has a flat rectangular lid plate 30 and four lid side pieces 32a, 32b that are extended from each lid plate side 31 of the lid plate 30 and formed by bending along a direction perpendicular to the lid plate. Furthermore, at both ends of a pair of lid side pieces 32a facing each other, a substantially trapezoidal extension piece 33 that further protrudes from the lid side piece 32a is provided. With this configuration, as shown in Fig. 5, in a state in which the lid portion 12 is covered on the outer shell portion 6, the pair of reinforcing frames 5a, 5b, and the pad extension piece portions 4a, 4b, the tape material 7 can be attached so as to bridge the extension piece 33 and the outer shell portion 6 perpendicular to the extension piece 33. That is, a tape joint 25 can also be provided between the lid portion 12 and the outer shell portion 6. As a result, the lid portion 12 is fixed to the outer shell portion 6.

[0067] As described above, in the large box 1 of this embodiment, the tape joint 25 is formed using the tape material 7, so that the pad extension pieces 4a, 4b, the reinforcing frames 5a, 5b, and the outer shell part 6 are fixed at their respective upper end positions. Furthermore, the auxiliary pad part 2 including the pad extension pieces 4a, 4b is joined to the box part 3 located below it, and the box part 3 is also joined to the multiple beam members 9 and the bottom plate parts 11a, 11b via the top plate part 10. Therefore, all of these configurations are integrally formed by the adhesive or the tape material 7. In addition, the tape joint 25 can be provided between the outer shell part 6 and the lid part by the extension piece part 33 provided on the lid part 12.

[0068] Therefore, even when the article 8 is packed in the storage space 26, the positional relationship between the pad extension pieces 4a, 4b, etc. and the relative position of the lid portion 12 to the outer shell portion 6 do not change. Therefore, the fastening work using a P-band 114 (see FIG. 11) as in the conventional large box 100 can be omitted.

[0069] In the large box 1 of the present embodiment described above, the configuration of the auxiliary pad portion 2, particularly the pair of L-shaped pad extension pieces 4a, 4b, is shown based on Fig. 1-5, but the present invention is not limited to this, and various shapes and an increase or decrease in the number of pad extension pieces can be adopted according to the shape and type of the article 8 to be packed. In addition, although not particularly shown, the length (height) of the pad extension piece can be set arbitrarily.

[0070] Hereinafter, with reference to Fig. 6-9, another example of the configuration of the auxiliary pad part in the large box of the present invention will be described. Here, Fig. 6-8 is an explanatory diagram showing another example of the configuration of the auxiliary pad part, and Fig. 9 is an explanatory diagram showing the state of fixing the reinforcing frame and the outer shell part by the auxiliary pad part of Fig. 8. In Fig. 6-9, the configuration of the large box other than the auxiliary pad part is the same as that described in the large box 1 of this embodiment, so the same reference numerals are used and detailed description is omitted. In addition, in order to simplify the description, the configurations of the reinforcing frames 5a, 5b, the outer shell part 6, and the lid part 12 are omitted in Fig. 6-8, and the configuration of the lid part 12 is omitted in Fig. 9.

[0071] A large box 40 having another configuration according to the present invention may be that shown in Fig. 6. The auxiliary pad section 41 of the large box 40 having such a configuration includes a flat rectangular pad substrate section 42 and four pad extension pieces 44a, 44b, 44c, and 44d extending from four pad sides 43 (corresponding to the four sides in the present invention) of the pad substrate section 42.

[0072] That is, the pad extension pieces 44a, etc. are respectively extended from all pad sides 43 of the pad substrate portion 42, and the auxiliary pad portion 41 has a total of four pad extension pieces 44a, etc. As a result, the number of joints by the tape material 7 at the reinforcing frame upper ends 23 of the reinforcing frames 5a, 5b and the outer shell upper end 24 of the outer shell portion 6 increases (see FIG. 4). This makes it possible to increase the number of tape joints 25, increase the joint strength between the auxiliary pad portion 41 and the reinforcing frames 5a, 5b and the outer shell portion 6, and stabilize the packaged state of the article 8.

[0073] Furthermore, a large box 50 having another configuration of the present invention may be that shown in Fig. 7. A pair of pad extension pieces 52a, 52b in an auxiliary pad portion 51 of a large box 50 having such a configuration is configured to have an oblique side portion 54 extending diagonally downward from an extension piece upper end 53. As a result, even if the pad extension pieces 52a, 52b are overlapped with the pad substrate portion 55, the pad extension pieces 52a, 52b can be folded without interfering with each other.

[0074] In addition, a large box 60 of another example of the present invention may be as shown in Figs. 8 and 9. A pair of pad extension pieces 62a, 62b in the auxiliary pad portion 61 of the large box 60 of this configuration may have folded pieces 64a, 64b further extended from the upper end 63 of the extension piece. As a result, as shown in Fig. 9, the folded pieces 64a, 64b can be folded outward along the upper end 63 of the extension piece, the folded piece 65 is aligned with the upper end 23 of the reinforcing frame and the upper end 24 of the outer shell portion, and the folded pieces 64a, 64b can be overlapped with the outer surface 6a of the outer shell portion 6. With this configuration, the configuration of the tape joint portion 25 by the tape material 7 shown in the large box 1 of this embodiment can be omitted. The folded folded pieces 64a, 64b are pressed down by the lid portion 12 that is subsequently placed from above, so that the folded state is maintained.

[0075] As described above, the large boxes 1, 40, 50, 60 of the present invention are equipped with auxiliary pad portions 2, 41, 51, 61, which are characteristic of the conventional large box 100 (Figure 10, etc.), thereby eliminating the need for fastening work using P-bands 114, which was a burden on employees, and allowing the items 8 to be packed in a stable manner and transported, stored, etc. [Industrial Applicability]

[0076] The large box of the present invention can be suitably manufactured in a manufacturing plant or the like that produces large cardboard boxes, and can be suitably used in places where various items such as products, parts, and materials are packaged, transported, and stored. [Explanation of symbols]

[0077] 1, 40, 50, 60, 100: large box, 2, 41, 51, 61: auxiliary pad portion, 3, 105: box portion, 4a, 4b, 44a, 44b, 44c, 44d, 52a, 52b, 62a, 62b: pad extension piece portion, 5a, 5b: reinforcing frame, 6, 107: outer shell portion, 7: tape material, 8: item, 9, 102: beam member, 10: top plate portion, 11a, 11b, 103: bottom plate portion, 12, 108: lid portion, 13, 42, 55: pad substrate portion, 14a, 14b, 14c, 14d, 43: pad edge, 15, 17: cutout, 16a, 16b: side edge, 18, 111: hanging piece portion, 19: Opening, 20a, 20b: folded sides, 21a, 21b: upper piece portion, 22, 53, 63: upper end of extended piece, 23: upper end of reinforcing frame, 24: upper end of outer shell portion, 25: tape joint portion, 26, 113: storage space, 27a, 27b: lower piece portion, 28: removal notch, 29, 110a, 110b, 110c, 110d: base portion side, 30: cover plate portion, 31: cover plate portion side, 32a, 32b: cover side portion, 33: extended piece portion, 35, 106: pallet, 54: oblique side portion, 64a, 64b: folded piece portion, 65: folded portion, 114: P band (plastic band), L1, L2: length.

Claims

1. A large cardboard box for storing and packaging items therein, An outer shell; A lid portion provided over the outer shell portion; a pad base portion that is laid under the outer shell portion and has a flat rectangular shape, and an auxiliary pad portion that has pad extension pieces that are respectively extended from at least a pair of pad sides that face each other of the pad base portion; A large box equipped with:

2. 2. The large box according to claim 1, further comprising a box-shaped box portion having a flat rectangular box base portion and hanging pieces extending upward from each base portion side of the box base portion, an opening portion opening upward, and laid below the auxiliary pad portion.

3. The lid portion is The cover plate has a flat rectangular shape, and a cover side piece is provided extending from each of the cover plate sides of the cover plate and is bent in a direction perpendicular to the cover plate to form a cover side surface.

3. The large box according to claim 1, further comprising an extension piece portion further extending from at least one pair of the lid side pieces opposed to each other.

4. The pallet further includes a plurality of beam members arranged at predetermined intervals, a flat rectangular bottom plate portion laid on the underside of the beam members, and a flat rectangular top plate portion placed on the upper surface of the beam members, 3. The large box according to claim 2, wherein the box portion is joined onto the top plate portion of the pallet.

5. The auxiliary pad portion is 2. The large box according to claim 1, wherein the pair of opposing pad extension pieces are folded along the pad sides and can be stored inside the box portion in a state where they are overlapped on the pad base portion.

6. The pad extension piece is a lower piece portion extending from the pad side of the pad substrate portion; an upper piece portion formed from the lower piece portion with a length shorter than the side length of the pad side; having 2. The box of claim 1, which is formed in an L-shape.

7. The pad extension piece is A folded piece portion is further extended from the upper end of the extension piece so as to be able to be folded back, The large box according to claim 1 , wherein the upper end of the outer shell is sandwiched and fixed by utilizing the folded-back piece folded back from the upper end of the extension piece.

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