Packing material

Abstract

To provide a packaging material which achieves both ease of assembly during packaging and maintenance of the packaged state after packaging in order to protect equipment with a thick cardboard.SOLUTION: A packing material has an upper packing member 8 that covers an entire periphery of an upper side surface of a device, and is integrally provided: a first connecting flap 100 which connects a front flap 11 and one of the side surface flaps; and a second connecting flap 200 which connects a rear flap 12 and the other side surface flap, at an upper end of the upper packing member 8, and includes a folding line 30 for folding each flap is included at the upper packing member 8 and a connecting surface of each flap, a notch part 31 is formed by notching obliquely at an end part of the flap that is folded bellow during assembly, among the adjacent first connecting flap 100 and second connecting flap 200, a first angle formed by the notch part 31 and the folding line 30 is smaller than a second angle formed by the notch part 31 and the end part of the adjacent connecting flap and folding line 30.SELECTED DRAWING: Figure 9

Description

[Technical field]

[0001] The present invention relates to packaging materials for packaging equipment using thick corrugated cardboard sheets. [Background technology]

[0002] Conventionally, packaging materials for this type of large equipment have been composed of an upper packaging member that covers the entire periphery of the equipment as a whole, and a flap that is continuous with the upper packaging member and covers the top of the equipment.

[0003] Also, as described in Patent Document 1, there was a packaging system that included a lower packaging member made of two thick cardboard sheets stapled together, an upper packaging member made of two cardboard sheets stapled together, and a flap continuing from the upper packaging member that covers the top surface, and that covered the top of the equipment with the flap to pack it (Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2013-180801 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, as in Patent Document 1, when one connecting flap and the other connecting flap are folded simultaneously during packaging, there is a problem that the flaps collide with each other, making assembly complicated. [Means for solving the problem]

[0006] In order to solve the above-mentioned problems, the present invention provides a packaging material for packaging equipment, the packaging material having an upper packaging member covering the entire periphery of the upper side surface of the equipment, a first connecting flap connecting a front flap and one of the side flaps and a second connecting flap connecting a rear flap and the other side flap are integrally provided at the upper end of the upper packaging member, the connection surfaces of the upper packaging member and each flap are provided with fold lines for folding each of the flaps, and a notch portion is formed by cutting diagonally into the end of the flap that is folded downward during assembly, of the adjacent first connecting flap and second connecting flap, and a first angle formed by the notch portion and the fold line is smaller than a second angle formed by the fold line and the end of the connecting flap adjacent to the notch portion.

[0007] In addition, the packaging material comprises a plurality of angle-type reinforcing members that protect the corners of a rectangular column-shaped equipment having a piping connection portion on the front side that connects internal piping and external piping and a stepped recess portion provided below the piping connection portion, and a packaging material that covers the entire circumference of the side of the equipment to which the angle-type reinforcing members are attached, and at a position corresponding to the side of the packaging material where the packaging material and the stepped recess portion are adjacent to each other, a plurality of slits and fold lines that are line segments connecting both ends of the slits are provided, and by folding a portion of the side of the packaging material inward along the fold lines, it is possible to form a support member that supports the angle-type reinforcing members from below.

[0008] Furthermore, the cutout portions are provided at the ends of the front flap and the rear flap, and the front flap and the rear flap are located below the side flaps when assembled.

[0009] The fold lines of the front flap and the rear flap are shifted downward from the fold lines of the side flaps by an amount equivalent to the thickness of the packaging material.

[0010] In addition, a plurality of perforated cuts are provided along the fold lines, so that there are more cuts on the fold lines of the flap that is folded upward than on the fold lines of the flap that is folded downward. Effect of the Invention

[0011] In this way, by providing an obliquely cut-out portion at the end of the flap that is folded downward and making the second angle smaller than the first angle, the flap that is folded downward does not come into contact with the back surface of the flap that is folded upward, and the flaps can be easily folded at the same time to form a box shape. [Brief description of the drawings]

[0012] [Figure 1] Packaging configuration diagram of the first embodiment of the present invention [Diagram 2] Exploded view of upper and lower packaging members [Diagram 3] FIG. 1 is a front view showing the upper packaging member before assembly. [Figure 4] FIG. 13 is a perspective view showing the upper packaging member during assembly work. [Diagram 5] FIG. 13 is a perspective view showing the upper packaging member during assembly work. [Figure 6] FIG. 13 is a perspective view showing the upper packaging member during assembly work. [Figure 7] FIG. 13 is a perspective view showing the upper packaging member after assembly; [Figure 8] FIG. 1 is a front view and an enlarged view of a main part showing another embodiment of the folding line. [Figure 9] A front view showing another embodiment of the folding line and an enlarged view of the main part after assembly. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Next, a packaging material for a storage type hot water supply apparatus according to a first embodiment of the present invention will be described with reference to the drawings. In Figure 1, reference numeral 1 denotes a storage type hot water heater as equipment supported by support legs 3 attached to the bottom plate 2 of the equipment, a hot water storage tank with a capacity of approximately 300 liters to 560 liters for storing hot water is built into a rectangular pillar-shaped exterior body, a piping connection section 4 is provided on the front side of the exterior body to which external piping etc. are connected, and a step recess 5 is provided below the piping connection section 4, and the overall height of the storage type hot water heater 1 is approximately 1700mm to 2200mm and the overall width is approximately 600mm to 800mm.

[0014] Reference numeral 6 denotes a wooden packaging stand fixed to the bottom of the storage type water heater 1 with support legs 3 and bolts and nuts, reference numeral 7 denotes an angle-shaped reinforcing member formed by folding cardboard into an angle shape to protect the four corners of the storage type water heater 1, reference numeral 8 denotes an upper packaging member that covers the entire circumference of the upper half of the side of the storage type water heater 1, and reference numeral 9 denotes a lower packaging member made of cardboard that covers the entire circumference of the lower half of the side of the storage type water heater 1.

[0015] Flaps 10 and 29 are provided at the upper ends of upper cardboard sheets 17 constituting upper packing member 8, and are integral with upper packing member 8 covering part of the top surface of storage type hot water heater 1, and are composed of front flap 11, rear flap 12, right side flap 13, and left side flap 14. They are also integrally formed via right-angled mountain fold portion 15, and valley fold portion 16 is formed spanning from the lower end of mountain fold portion 15 diagonally 45 degrees upward from the upper ends of front flap 11 and rear flap 12.

[0016] It also includes a first connecting flap 100 in which the front flap 11 and the left side flap 14 are integrally formed at a mountain crease portion 15, and a second connecting flap 200 in which the rear flap 12 and the right side flap 13 are integrally formed at a mountain crease portion 15.

[0017] As shown in the expanded view of Figure 2(a), the upper packaging member 8 is composed of an upper cardboard sheet 17 that is wider than the four side faces of the storage type hot water heater 1 by the thickness of the angle-type reinforcing member 7.

[0018] Reference numeral 18 denotes an upper joint portion for joining both ends of the upper cardboard sheet 17 that forms the upper packaging member 8, reference numeral 19 denotes an upper vertical zipper portion for cutting open in an approximately vertical direction from the lower end near the front of the upper packaging member 8 to the middle at the part corresponding to the side of the storage type hot water heater 1, reference numeral 20 denotes an upper diagonal zipper portion for cutting open in an oblique direction that extends from the upper end of the upper vertical zipper portion for cutting open 19 to the upper end near the front of the upper packaging member 8, and reference numeral 21 denotes an upper cutting open start portion opened midway through the upper vertical zipper portion for cutting open 19.

[0019] Reference numeral 22 denotes an angle cutout portion provided by cutting out positions corresponding to the four corners of the lower end of the upper packaging member 8, which exposes the angle-type reinforcing members 7 that are attached to the four corners of the storage type hot water supply device 1 during assembly.

[0020] Then, with the upper joint margin 18 on the right side of the upper cardboard sheet 17 abutted against the inner surface of the left edge of the upper cardboard sheet 17, they are joined with an adhesive to form the upper packaging member 8 in a rectangular tube shape.

[0021] As shown in the expanded view of Figure 2(b), the lower packaging member 9 is composed of a lower cardboard sheet 23 that is wider than the four side faces of the storage type hot water heater 1 by the thickness of the angle-type reinforcing member 7.

[0022] And, 24 is a visual cutout portion for exposing part of the equipment bottom plate 2, 25 is a lower joint portion for joining both ends of the lower cardboard sheet 23 that forms the lower packaging member 9, 26 is a lower vertical zipper portion for cutting open in a substantially vertical direction from the upper end near the front side of the lower packaging member 9 to the middle at the part corresponding to the side of the storage type hot water heater 1, 27 is a lower diagonal zipper portion for cutting open in a diagonal direction that runs from the lower end of the lower vertical zipper portion for cutting open 26 to the lower end near the front side of the lower packaging member 9, and 28 is a lower cutting open start portion opened at the intersection position of the lower vertical zipper portion for cutting open 26 and the lower diagonal zipper portion for cutting open 27.

[0023] When opening the package, lower vertical zipper portion 26 for cutting open, lower diagonal zipper portion 27 for cutting open, upper vertical zipper portion 19 for cutting open and upper diagonal zipper portion 20 for cutting open are configured as two parallel cut lines with numerous cuts spaced at regular intervals, as shown in Figure 2(c), making it possible to manually separate the cardboard in the area surrounded by the cut lines.

[0024] Reference numeral 29 denotes an angle cutout portion provided by cutting out positions corresponding to the four corners of the upper end of the lower packaging member 9, which exposes the angle-type reinforcing members 7 that are attached to the four corners of the storage type hot water supply device 1 during assembly.

[0025] Then, the lower joint margin 25 on the right side of the lower cardboard sheet 23 is placed against the inner surface of the left edge of the lower cardboard sheet 23 and bonded with an adhesive to form the lower packaging member 9 in a rectangular tube shape.

[0026] Next, the characteristic features of the present invention will be described with reference to FIG. 3 and FIG. Reference numeral 30 denotes a fold line for folding the flap 10 at the connection surface between the upper packaging material and the flap 10, reference numeral 31 denotes a cutout portion formed by cutting diagonally into the end portion of the adjacent first connecting flap 100 and second connecting flap 200 that will be folded downward during assembly, reference numeral 32 denotes an adhesive portion where adhesive is applied to bond the front flap 11 to a portion of the left side flap 14, and the rear flap 12 to a portion of the right side flap 13, and reference numeral 33 denotes a hole punched portion formed in the flap side of the first connecting flap 100 and second connecting flap 200 that will be folded downward during assembly.

[0027] Next, the folding line 30 will be described in detail. The fold line 30 is a perforated cut provided in advance along the entire periphery in the horizontal direction so that the flap 10, which is integral with the upper packaging member 8, can easily form the top surface of the packaging material. The fold line 30 is a visualized line by providing multiple cuts.

[0028] In this way, by providing the fold line 30 at the cut portion, the flap 10 can be smoothly folded towards the storage type hot water supply device 1 side for assembly, whereby the top surface of the packaging material can be easily formed.

[0029] The cutout portion 31 will now be described in detail. The front flap 11 of the first connecting flap 100 is provided with a first cutout portion 31A that is cut diagonally from the lower end on the right side flap 13 side toward the upper end of the front flap 11, and the rear flap 12 of the second connecting flap 200 is provided with a second cutout portion 31B that is cut diagonally from the lower end on the left side flap 14 side toward the upper end of the rear flap 12.

[0030] Also, the first angle (here, 45°) formed by the first cutout portion 31A of the front flap 11 and the fold line 30 is smaller than the second angle (here, 90°) formed by the right side flap 13 on the front flap 11 side and the fold line 30. Similarly, the first angle formed by the second cutout portion 31B of the rear flap 12 and the fold line 30 is smaller than the second angle formed by the left side flap 14 on the rear flap 12 side and the fold line 30.

[0031] Furthermore, it is preferable that the difference between the first angle and the second angle is 45°, and if the first angle is 30°, the second angle is 75° (however, the first angle<the second angle).

[0032] Thus, taking the first cutout portion 31A of the front flap 11 as an example, due to the angle difference between the end of the front flap 11 and the right side flap 13 and the first cutout portion 31A, the front flap 11 and the right side flap 13 begin to be folded simultaneously, and when the right side flap is folded, for example, at 45 degrees, the front flap 11 forms a cutout portion 31 cut at an angle of 45 degrees, so that the front flap 11 can easily form a box shape without coming into contact with the back of the right side flap 13.

[0033] Next, the adhesive portion 32 will be described in detail. The first connecting flap 100 and the second connecting flap 200 are integrally formed at the mountain fold portion 15, and further, adhesive is applied to the mesh portion in Fig. 2, and the front flap 11 and the left side flap 14, and the rear flap 12 and the right side flap 13 are overlapped and adhered as shown in Fig. 3. The adhesion method may be adhesive, wire, staples, etc., as long as the upper ends of the flaps in the mesh portion in Fig. 2 are adhered.

[0034] In this way, the front flap 11 and the left side flap 14 of the first connecting flap 100 are integrated at their upper ends, so that when the flap is opened, it starts to change into a box shape and when it is fully opened, it can completely form a box shape. The rear flap 12 and the right side flap 13 of the second connecting flap 200 are also integrated at their upper ends.

[0035] Next, the perforated portion 33 will be described in detail. In the first connecting flap 100, a hole punching portion 33 is punched in the front flap 11 that is folded downward while leaving a mountain crease portion 15 so that the front flap 11 and the left side flap 14 are not separated, and in the second connecting flap 200, a hole punching portion 33 is punched in the rear flap 12 that is folded downward while leaving a mountain crease portion 15 so that the rear flap 12 and the right side flap 13 are not separated. The hole punching portions 33 of the front flap 11 and the rear flap 12 are opened from the upper end of the upper packaging member 8 along the mountain crease portion 15 and the valley crease portion 16.

[0036] In this way, by punching the hole 33 in the flap that is folded downward, the overlapping of the front flap 11 and the left side flap 14 at the beginning of assembly and generation of resistance is suppressed, making it easier to fold, thereby improving the workability of the packaging work.

[0037] Next, a procedure for assembling upper packaging member 8 that has been carried in in a folded state as shown in FIG. 3 will be described with reference to FIGS. The upper packaging member 8 is brought in with both ends of the upper cardboard sheet 17 joined via the upper joint portion 18 as shown in Figure 3, the front flap 11 overlapping the left side flap 14, and the rear flap 12 overlapping the right side flap 13, and the packer assembles it from Figure 4 to Figure 7.

[0038] As shown in Figures 4 to 6, the upper ends of the front flap 11 and left side flap 14 of the first connecting flap 100 are integrated, and the rear flap 12 and right side flap 13 of the second connecting flap 200 are integrated, so that when opened, it begins to change shape into a box, and the front flap 11 and rear flap 12 are folded by the valley fold portion 16.

[0039] At this time, due to the angle difference between the end of the front flap 11 and the right side flap 13 and the first cutout portion 31A, the front flap 11 forms a box shape without contacting the back surface of the right side flap 13. Similarly, due to the angle difference between the end of the rear flap 12 and the left side flap 14 and the second cutout portion 31B, the rear flap 12 forms a box shape without contacting the back surface of the left side flap 14.

[0040] As shown in FIG. 7, the front flap 11 and the rear flap 12 are disposed below the right side flap 13 and the left side flap 14.

[0041] Next, another embodiment of the fold line 30 will be described with reference to FIG. The fold lines 30 of the front flap 11 and the rear flap 12, which are preferably folded downward when packed, are shifted downward by the thickness of the packing material from the fold lines of the right side flap 13 and the left side flap 14, which are preferably folded upward when packed.

[0042] In this way, by shifting the fold lines 30 of the front flap 11 and the back flap, which are preferably folded downward during packaging, and the right side flap 13 and the left side flap 14, which are preferably folded upward, the repulsive force can be suppressed more than when the fold lines 30 are horizontal.

[0043] Next, another embodiment of the fold line 30 will be described with reference to FIG. The number of perforated cuts of the folding lines 30 of the front flap 11 and the back flap 12, which are preferably folded first when packed, is made larger than the number of perforated cuts of the folding lines of the right side flap 13 and the left side flap 14, which are preferably folded later when packed.

[0044] In this manner, by providing a difference in the number of perforated cuts in the folding lines 30 of the flaps 10 that are preferably folded first during packaging and the flaps 10 that are preferably folded last, it is possible to change the resistance force when the flaps 10 are folded, thereby adjusting whether the flaps 10 are folded first or later.

[0045] The present invention is not limited to the above embodiment, and may be modified within the scope of the invention. For example, in this embodiment, the cutout portion 31 is cut out at an angle, but it does not necessarily have to be a straight diagonal line, and may be a curved diagonal line. However, while the angle can be measured with a straight diagonal cutout, if the cutout portion 31 is formed as a curved line rather than a straight diagonal line, or if the cutout portion is rectangular, the angle cannot be measured, so the approximate angle formed by the cutout portion 31 and the fold line 30 is referred to. Also, the cutout is made from the lower end of the flap 10, but it may be cut out from the middle.

[0046] Furthermore, the method of providing the fold line 30 need not be limited to providing perforated cuts along the entire horizontal circumference, but may be any method that allows the flap 10 to be smoothly folded toward the storage type hot water supply device 1. For example, there is a method of providing a cut line along the entire circumference of the upper packing member 8 on the side opposite the storage type hot water supply device 1, or a method of applying pressure from the storage type hot water supply device 1 side of the upper packing member 8 to dent the entire horizontal circumference.

[0047] Furthermore, the fold lines 30 do not necessarily have to be directly printed and written or made visible by cutting them, and as long as the fold lines 30 can be folded inward, they do not have to be made visible and displayed.

[0048] In addition, although the present invention describes the equipment to be packaged as a storage type hot water supply device 1, the present invention is not limited to this equipment, and any equipment that can be protected by packaging materials using thick cardboard sheets can be used, and the equipment can be other products other than the storage type hot water supply device 1.

[0049] In the description of this embodiment, in order to simplify the explanation, the flap 10 is described with each flap being named as the front flap 11, the rear flap 12, the right side flap 13, and the left side flap 14. However, when the right side flap 13 and the left side flap 14 are folded downward, the right side flap 13 and the left side flap 14 may be provided with a cutout portion 31. [Explanation of symbols]

[0050] 1. Storage water heater (equipment) 8 Upper packaging material 9 Lower packaging material 10 Flap 11 Front flap 12 Rear flap 13 Right side flap 14 Left side flap 100 First connecting flap 200 Second connecting flap 30 fold line 31 Cutout 32 Adhesive part

Claims

1. A packaging material for packaging a device, comprising: The packaging material has an upper packaging member that covers an entire periphery of an upper side surface of the device, A first connecting flap, which connects the front flap and one of the side flaps, and a second connecting flap, which connects the rear flap and the other side flap, are integrally provided at the upper end of the upper packaging member, A connection surface between the upper packaging member and each flap is provided with a folding line for folding each flap, A notch is formed by cutting obliquely at an end of the flap that is folded downward during assembly among the first connecting flap and the second connecting flap that are adjacent to each other; A packaging material characterized in that a first angle formed by the cutout portion and the fold line is smaller than a second angle formed by the end of the connecting flap adjacent to the cutout portion and the fold line.

2. 2. The packaging material according to claim 1, wherein the cutouts are provided at the ends of the front flap and the rear flap, and the front flap and the rear flap are located below the side flaps when assembled.

3. 3. The packaging material according to claim 1, wherein the fold lines of the front flap and the rear flap are shifted downward from the fold lines of the side flaps by an amount corresponding to a thickness of the packaging material.

4. A plurality of perforated cuts are provided along the fold line, 3. The packaging material according to claim 1, wherein the number of slits provided on the fold line of the flap folded upward is greater than the number of slits provided on the fold line of the flap folded downward.

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