Packaging

Abstract

To provide a package whose handle structure part can be reliably erected without being divided.SOLUTION: A cutting line 13 is provided in the inner box 10 of a package to be cut and raised to form a grip part 12 (handle structure part). With a boundary point P being the starting point, a notch line 14 is provided which extends in a direction parallel to the erecting direction (arrow kh) of the grip part. The notch line 14 has a base part 14a and a tip part 14c that is converted from the base part 14a toward the end part 13bt of a connection part or the vicinity of the end part. Further, the notch line 14 is provided so as to be within the range on the boundary point P side of the center of the connection part center line 13 parallel to the erecting direction of the handle structure part. By providing the notch line 14, the handle structure part can be reliably erected without dividing the handle structure part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a package. [Background technology]

[0002] When the specifications for packaging precision machinery and other products meet the following two conditions, a "multi-packaging specification" is adopted in order to ensure the quality of product protection. In this specification, the product is placed in an inner box 2, such as a cardboard box for fixing the product, and this is then placed in an outer box 3, as shown in Figure 20.

[0003] <Condition 1> As shown in FIG. 21, in order to prevent deformation of the product structure, it is necessary to supplement the rigidity of the product by using a stiffening material 5 and an inner box 2. <Condition 2> As shown in Figure 22, if the outer shape of the product 1 has protruding shapes such as pins or gears, due to the shape and properties of the packaging material 4 used for fixing and cushioning, the outer shape of the product and the packaging material will come into localized contact at points and surfaces. When the product is subjected to a load due to vibrations and shocks received during logistics, holes will be made in the packaging material or the protruding parts of the product will be damaged, so the product and the packaging material for fixing and cushioning cannot be directly fitted together.

[0004] On the other hand, one issue with the multi-packaging specification is that when removing the product at the customer's site, the clearance C between the inner box 2 and the exterior box (outer box 3) is kept to a minimum in order to reduce logistics costs and packaging material resources, as shown in Figure 20, so there is no space to insert one's fingers, making it difficult to remove the product.

[0005] As a countermeasure to this problem, a technology has already been devised and is known that provides a separate forming section in the inner box for separately forming a handle (grip portion), allowing the grip portion to be separated and formed from the inner box at the appropriate time when delivered to the customer.

[0006] Patent document 1 (Japanese Utility Model Application Publication No. 2002-102329) discloses a packaging case in which the top surface of a box made of cardboard, corrugated cardboard, or the like has single or double cutting lines formed by semicircular or U-shaped perforations or the like as non-cut portions.

[0007] With this packaging case, a gripping piece equivalent to a handle is formed by cutting along the cutting line, so that the inner box can be easily removed from the outer box by holding and pulling up on this gripping piece. Summary of the Invention [Problem to be solved by the invention]

[0008] However, with this configuration, if a large force is applied to the packaging body, such as when cutting and raising the packaging, the packaging body will break forcefully as soon as the stress limit due to cutting is exceeded, which may impair its functionality after separation and formation.

[0009] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to solve the above problems associated with conventional packaging bodies, and to provide a packaging body in which the handle structure can be reliably erected without the handle structure being torn off. [Means for solving the problem]

[0010] In order to solve this problem, the present invention provides a packaging body comprising a structure constituting a storage space for accommodating a packaged item, the structure comprising a handle structure as a separate formation structure formed by a cut line and capable of standing up from the structure, the cut line consisting of a slit and a connecting portion, a cut line is provided starting from a boundary point between a cut termination end of a given slit and a cut start end of the connecting portion with respect to a central reference line which is an axis of symmetry of the handle structure, the cut line has a base extending from the boundary point parallel to or at an acute angle to the standing direction of the handle structure, and a tip portion turning from the base toward the end or near the end of the connecting portion, the cut line being provided within a range on the boundary point side of the connecting portion central line which is parallel to the standing direction of the handle structure. Effect of the Invention

[0011] In the packaging body of the present invention, the handle structure can be reliably erected without being torn apart. [Brief description of the drawings]

[0012] [Figure 1] FIG. 2 is a plan view showing a schematic view of a portion of a packaging body according to an embodiment of the present invention. [Diagram 2] FIG. 11 is a plan view showing a schematic view of a portion of a packaging body according to another embodiment of the present invention. [Diagram 3] FIG. 11 is a plan view showing a schematic view of a portion of a packaging body according to another embodiment of the present invention. [Figure 4] FIG. 13 is a schematic diagram showing an example of a cut line configured as a curve. [Diagram 5] 13 is a schematic diagram for explaining the cutting and raising operation of the gripping portion. FIG. [Figure 6] 11A to 11C are diagrams for explaining the arrangement of cut lines, etc.; [Figure 7] FIG. 11 is a plan view showing another example of the cut line. [Figure 8] FIG. 11 is a plan view showing still another example of the cut lines. [Figure 9] FIG. 13 is a diagram showing three examples of grip portions with different shapes. [Figure 10] FIG. 13 is a partially enlarged view showing a configuration example in which a cut line is also provided on the end side of the connecting portion. [Figure 11] 13 is a plan view showing a configuration example in which a push-in portion is provided in the vicinity of a grip portion. FIG. [Figure 12] 13A and 13B are diagrams illustrating a problem that occurs when cutting and raising a gripping portion. [Figure 13] 13 is a diagram showing a configuration in which the end portion of the cutting line is extended and connected to a structural part of the inner box. FIG. [Figure 14] 13 is a perspective view showing a configuration in which a grip portion is provided on the outer longitudinal flap surface of the inner box. FIG. [Figure 15]13 is a perspective view showing an example in which the gripping portion is positioned near the upper end of the side wall of the inner box. FIG. [Figure 16] FIG. 13 is a perspective view showing a configuration example that is not an embodiment. [Figure 17] FIG. 2 is a development view showing an example of a cardboard sheet constituting an inner box. [Figure 18] 13 is a perspective view showing an example of a configuration in which a gripping portion is disposed on a side surface of an inner box. FIG. [Figure 19] FIG. 1 is a plan view showing a configuration used in a verification experiment. [Figure 20] FIG. 13 is a perspective view for explaining a multiple packaging specification. [Figure 21] 13 is a perspective view illustrating a configuration in which the rigidity of the product is supplemented by a rigidity supplementing material and an inner box. FIG. [Figure 22] FIG. 11 is a perspective view for explaining local contact between the outer shape of the product and the packaging material. [Figure 23] FIG. 1 is a plan view for explaining a problem with the conventional technology. [Figure 24] 10 is a schematic diagram showing the direction of load and force assumed when the gripping portion is separated and formed. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] First, one of the problems with the conventional technology, that is, the need for a large force to cut and raise the handle structure (grip), will be described with reference to FIG. In Fig. 23, a cut line 13 such as a perforation for cutting and forming the grip portion 12 (handle structure portion) is provided twice on the top surface 11 of the inner box 10, which is the package. The cut line 13 consists of a slit portion 13a and a connecting portion 13b. The figure shows a defective cut line hs extending from the end of one of the slit portions 13a of the outer cut line 13. This defective cut line hs was caused by a large force being applied when the grip portion 12 was cut and raised, and was cut forcefully. As a result, the original function of the grip portion is lost.

[0014] The vicinity of the starting point of the defective cutting line hs is shown enlarged in the figure. In the enlarged portion, the dashed arrow extending straight downward is the rising direction line ks, which indicates the rising direction when the gripping portion 12 as the separation forming portion is cut up. Also, the dashed arrow extending tangentially to the slit portion 13a is the cutting direction line ss, which indicates the direction of the cutting line, i.e., the direction in which it should be cut correctly. The angle between the cutting direction line ss and the rising direction line ks is indicated as "α".

[0015] When the cutting direction line ss and the rising direction line ks are parallel or the angle α is small, the force required for cutting and raising is small, and no defective cutting occurs, and the appropriate gripping portion 12 (handle structure portion) is cut and raised to be formed by normal cutting.

[0016] On the other hand, when the cutting direction line ss and the rising direction line ks are not parallel, particularly when the angle α is 45 degrees or more, the cutting and raising operation causes a shift in the direction that makes it easier to cut due to stress concentration between the force in the rising direction (arrow ks) applied to the cutting starting point, which is the boundary point between the connecting portion 13b and the adjacent notch portion 13a, and the force in the cutting direction of the cutting line 13 (cutting direction line ss), making it difficult for the cutting to proceed due to stress concentration, so a large force was required to cut and raise the piece while cutting.

[0017] In response to this, in an embodiment of the invention, the position and number of connecting parts of the cutting line for separating and forming a handle structure (grip portion) on the packaging body are maintained as in the conventional case, but a cut line is provided in advance that is parallel or at an acute angle to the standing direction line of the handle structure (grip portion) (the above angle α is zero or an acute angle) starting from the boundary point between the connecting part and the adjacent cut part.

[0018] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. Fig. 1 is a plan view showing a schematic view of a portion of a package according to an embodiment of the present invention. In the following description, the same reference numerals will be used to designate the same or equivalent parts as those described in Fig. 23.

[0019] 1, in this example, two cutting lines 13, such as perforations, are provided on the top surface 11 of the inner box 10, which is a package, for cutting and forming the gripping portion 12 (handle structure portion), which is a separate structure. The cutting lines 13 are made up of cut portions 13a and connecting portions 13b, which are formed alternately side by side.

[0020] In this example, two (double) cutting lines 13, 13 are provided so that the grip portion 12 will have a substantially semicircular shape when cut and raised. The double cutting lines 13, 13 are provided so that they are substantially symmetrical on the left and right sides with respect to the center reference line J. In other words, the center reference line J is the axis of symmetry of the grip portion 12. In Fig. 1, the center reference line J passes through the midpoint of the distance between the outer end H1 and the outer end H2 of the grip portion 12 at the boundary line (dotted line in the figure) between the upper surface portion 11 and the adjacent surface 18.

[0021] The vicinity of one joint (the vicinity of a predetermined joint) of the cutting line 13 is shown in an enlarged manner in the figure. As shown in the enlarged portion, a cut line 14 is provided that starts from a boundary point P between the cutting termination end of the cut portion 13a of the cutting line and the cutting start end of the joint portion 13b, and extends in a direction parallel to the standing direction (the direction for standing the grip portion 12) indicated by an arrow kh in the figure.

[0022] That is, a cut line 14 is provided starting from a boundary point P between a predetermined cut portion 13a and a connecting portion 13b. This cut line 14 has a base portion 14a extending from the boundary point P parallel to or at an acute angle to the standing direction of the grip portion 12, which is the handle structure, and a tip portion 14c turning from the base portion 14a toward the end portion 13bt of the connecting portion or toward the vicinity of the end portion. Furthermore, this cut line 14 is provided so as to fall within a range on the boundary point P side of the center of the connecting portion 13b.

[0023] In Fig. 1, the outer and inner cut lines 14 are each formed in the cut portion 13a of the cutting line 13 closest to the central reference line J, and are formed in a total of four places on both sides of the central reference line J. As shown in the figure, the outer cut line 14 and the inner cut line 14 are formed in pairs. FIG. 1 shows an example in which the base 14a is parallel to the rising direction kh, but as described above, the cut line 14 may be in an angular relationship in which the base 14a forms an acute angle with respect to the rising direction kh (rising direction line ks).

[0024] FIG. 2 is a plan view that shows a schematic view of a portion of a package according to another embodiment of the present invention. In Fig. 2, the outer cut lines 14 are formed in two places in the cut portion 13a of the second cutting line 13 with respect to the central reference line J, while the inner cut lines 14 are formed in two places in the cut portion 13a of the cutting line 13 closest to the central reference line J. The other parts are the same as those in Fig. 1, so their explanation will be omitted.

[0025] FIG. 3 is a plan view that shows a schematic view of a portion of a packaging body according to another embodiment of the present invention. In FIG. 3, one outer cut line 14 is formed in the cut portion 13a of the cutting line 13 closest to the central reference line J. Also, one inner cut line 14 is formed in the cut portion 13a of the cutting line 13 closest to the central reference line J. As shown in the figure, the positions of the cut lines 14 do not have to be symmetrical with respect to the central reference line J, and the outer cut line 14 and the inner cut line 14 do not have to be formed in pairs. The other parts are similar to those in FIG. 1, so their explanation will be omitted.

[0026] Although the incision lines 14 shown in Figures 1 to 3 are examples in which the incision lines are provided as curved straight lines, the incision lines may be curved lines. Figure 4 shows an example of an incision line configured as a curve. Figure 4(a) is a schematic diagram showing a cutting line 13 having the incision lines 14, and Figure 4(b) is an enlarged view of the circled portion in Figure 4(a).

[0027] In Fig. 4, the cut line 14 is configured as a curve in which the angle α between the reference direction line kj connecting the midpoint CP of the cut line and the boundary point P, which is the start point of the cut line, and the standing direction line ks is an acute angle. When the angle α is zero degrees, the reference direction line kj coincides with the standing direction line ks passing through the boundary point P, and the reference direction line kj becomes a curve parallel to the grip part standing direction kh.

[0028] 1 to 4, the provision of the cut lines 14 allows the grip portion 12 (handle structure), which is a separate structure, to be raised with almost no resistance in the initial stage of raising the grip portion 12. This allows the grip portion 12, which is a separate structure, to be separated from the base structure (the structure of the inner box 10) early on, eliminating the resistance caused by interference from the base structure, and also facilitating the cutting and raising of the grip portion 12 by making part of the disassembling force parallel to the raising direction as the direction of the force acting in the cutting and raising operation. This promotes the cutting of the connecting portion 13b, making it possible to cut and raise the grip portion 12 with less labor.

[0029] FIG. 5 is a schematic diagram for explaining the cutting and raising operation of the gripping portion 12. In this figure, the upper surface portion 11 (base structure portion) of the inner box on which the gripping portion 12 is provided is shown as viewed from the thickness direction. In the figure, the separation force (force for separating the gripping portion 12 from the upper surface portion 11) at the beginning of the raising acts almost directly upward (vertical direction). At the beginning of the raising, interference occurs between the upper surface portion 11 and the gripping portion 12 on both sides of the cutting line 13, but by providing the cut line 14, the resistance force due to the interference of the upper surface portion 11 can be eliminated by moving away from the upper surface portion 11 immediately after the cutting and raising starts. Similarly, the separation force acts in an oblique direction. Therefore, the separation force has a vertical component and an upright component, and this upright component promotes the separation of the gripping portion. These factors make it possible to cut and raise the gripping portion 12 with less labor.

[0030] Incidentally, when separately forming the gripping portion 12 (handle structure), which is a separately formed structure, in order to cut and raise the gripping portion 12 slightly at an initial stage, the angle α of the cut line 14 is most effective when it is parallel to the rising direction kh. On the other hand, when the angle α of the cut line 14 is set to be an acute angle (see FIG. 4(b)), the length of the cut line that is resolved in the rising direction becomes the effective length, so it is desirable to set the angle α as acute as possible as close to 0 degrees.

[0031] In addition, the incision line 14 needs to be as short as possible so as not to reduce the length of the existing connection, and if the angle α is large, an effective length cannot be secured. As a verification, when the incision line is 5 mm long and the angle α is set to 45 degrees, the standing phenomenon effect in the initial stage of the gripping part 12 hardly occurs, and especially when it is set to 45 degrees or more, a large force is required for separation, and a problem occurs that the separation formation structure is broken. On the other hand, it was confirmed that the effect can be obtained when the acute angle is 40 degrees or less, so the range of the above angle α is set to 40 degrees or less. As described above regarding the prior art, the gripping part (handle structure), which is a separate forming structure, is intended to be separated and formed manually by an operator at the appropriate time. Therefore, the gripping part (handle structure) must not be inappropriately separated and formed due to the load caused by vibrations and shocks when a box equipped with the gripping part (handle structure) is assembled or when it is transported as packaged cargo.

[0032] For this reason, the gripping portion (handle structure) must have multiple connections to the base structure over a wide area, and these connections must be long enough to withstand tensile loads in multiple directions. Figure 24 shows the direction of the load and force that is expected to be applied to the connection 13b of the cutting line 13 when the gripping portion is separated. It can be seen that the expected direction of the load and force differs depending on the location of the connection 13b.

[0033] Furthermore, in the prior art, as explained in FIG. 23, when the gripping portion 12 is cut and raised at the same time, as soon as the stress against the cutting reaches its limit, the cutting occurs forcefully and all at once, causing the gripping portion to break in the direction of the force (defective cutting), resulting in a problem of impairing its functionality after separation and formation. 1, the cut line 14 has a base 14a extending in the standing direction kh for standing the grip part 12, and a tip 14c extending by changing direction at a bending point 14b. The direction of the tip 14c is set so as to face the end 13bt of the connecting part 13b or the vicinity of the end 13bt.

[0034] 1 to 3, the base 14a and the tip 14c of the cut line 14 are both provided as straight lines, and the direction is changed at the bending point 14b, but the base 14a and the tip 14c may be connected by a curve. Also, as shown in Fig. 4, the cut line 14 may be provided as a curve. In that case, too, the tip of the curved cut line 14 is provided so as to face the end 13bt of the connecting portion 13b or the vicinity of the end 13bt. 1 to 4, when there are two cutting lines 13, a cut line 14 is provided on each of the two cutting lines 13. The position of the cut line 14 (at which connecting portion 13b) can be set as appropriate, but it is preferable to provide the cut line 14 at a position relatively close to the central reference line J indicating the axis of symmetry (center) of the grip portion 12. As shown in FIG. 6, it is also possible to provide the cut lines 14 at multiple connecting portions 13b. FIG. 6 shows an example in which multiple cut lines 14 (two on one side of the central reference line J, and a total of four on both sides) are provided on the cutting line 13 on the side with the larger radius.

[0035] FIG. 7 shows another example of the score line. 7 does not start from the boundary between the connecting portion 13b and the slit portion 13a in the cutting line 13, but has a starting point kp of the slit line 34 in the vicinity of the connecting portion 13b. At least two sides are provided so that the tip of the slit line 34 extending from the starting point kp faces the grip portion 12 (handle structure portion) which is a separate formation structure. Furthermore, when the rising direction of the part cut and raised by the slit line 34 is kk, the side 44e on the tip side of the cut and raised direction is provided so that the angle β with respect to the rising direction line kk is zero (parallel to the rising direction line kk) or an acute angle. In the illustrated example, the cut line 34 has two sides 34d, 34e and is in a dogleg shape, and the starting point kp of the cut line 34 where the sides 34d, 34e intersect is located near the connecting portion 13b. The angle α of the side 44e on the tip side of the cut-and-raise direction with respect to the rising direction line kk is set to be an acute angle.

[0036] In such a configuration, by artificially pushing the area surrounded by each side of the cut line 34 toward the back side of the drawing, the cutting inevitably proceeds from the tip of the cut line 34 toward the grip portion 12 toward the grip portion 12, and the cut portion merges with the cut line 13, so that the separate formation structure portion (the grip portion 12) can be separated and formed with less labor and without the inconvenience of the grip portion 12 being cut off. The cut lines 34 may be provided at a plurality of connecting portions 13b.

[0037] FIG. 8 shows yet another example of the score line. The difference between the cut line 44 in Fig. 8 and that in Fig. 5 is that it is "U" shaped instead of "L" shaped. The apex of the "U" is the starting point kp, which is located near the connecting portion 13b. In this example, the edge 44e on the tip side in the cut-and-raise direction is provided parallel to the rising direction line kk.

[0038] In the example shown in Figures 7 and 8, the angle α of the edge 44e at the tip side of the cutting direction with respect to the rising direction line ks is set to 0 (zero) to 40 degrees, as described above, because the separation formation structure part (gripping portion 12) is subjected to almost no resistance force, eliminating interference with the base structure (top surface 11 in this case), and the working force of cutting and raising the separation formation structure part (gripping portion 12) can be decomposed in the cutting direction. In addition, since the cutting direction naturally aligns with the rising direction line due to stress concentration, this angle is limited in order to create the effect of allowing cutting to proceed with little force.

[0039] FIG. 9 shows three examples of different shapes of the grip portion 12 (handle structure portion) which is a separate formation structure. The semicircular grip portion 12 in FIG. 9(a) is the one described above in FIG. 1 to FIG. 8 and the like, and is provided with a cut line 14. The grip portion 12 in FIG. 9(b) is an example of a quadrilateral (square, rectangular) shaped grip portion, and is provided with a "L" shaped cut line 34 as shown in FIG. 7. The grip portion 12 in FIG. 9(c) is an example of a trapezoidal shaped grip portion, and is provided with a "U" shaped cut line 44 as shown in FIG. 8. In any shape of the grip portion 12, by providing the cut line 14, 34, or 44 described above on the cutting line 13, the grip portion 12 can be easily cut and raised with a small force, and the grip portion can be reliably raised without the grip portion 12 being divided.

[0040] Fig. 10 is a partially enlarged view showing a configuration example in which a cut line is also provided on the terminal side (terminal side in the cutting direction of the connecting portion) of the connecting portion 13b of the cutting line 13. Fig. 10 shows an enlarged view of one connecting portion 13b of the cutting line 13 and the cut portions 13a on both sides thereof. This connecting portion 13b has a cut line 14 provided at the starting point side end st (starting point side of the cutting of the connecting portion). In addition to the cut line 14 on the tip side, a cut line 15 is also provided at the terminal side end mt (terminal side in the cutting direction of the connecting portion).

[0041] The cut line (distal cut line) 15 is provided in a direction starting from the distal end of the connecting portion 13b toward the end of the tip side (start point side) cut line 14. The length of the distal cut line 15 is within a range on the distal side of the center of the connecting portion 13b (within a range to the left of the connecting portion center line ts in the figure).

[0042] In this way, in the connecting portion 13b of the cutting line 13, in addition to the cutting line 14 on the tip side (starting point side), the cutting progress starting from the starting point side end st of the connecting portion 13b is promoted to reach the terminal side end mt of the connecting portion 13b reliably, and the collapse of the grip portion 12 (handle structure portion) which is a separate formation structure can be suppressed. This is particularly effective when using a material with high tear strength that is difficult to cut.

[0043] FIG. 11 shows an example of a configuration in which a push-in portion is provided near the grip portion 12 (handle structure portion) which is a separate formation structure, in order to facilitate the cutting and raising of the grip portion 12 by pushing it in at the start of the cutting and raising operation. FIG. 11(a) shows an example having a "U"-shaped push-in portion 16. FIG. 11(b) shows an example having a "U"-shaped (or rectangular) push-in portion 16. Pushing in the push-in portion 16 opens a hole, and inserting a finger into it to cut and raise the grip portion 12 makes it easy to raise the separate formation structure. The push-in portion 16 is made up of a cut portion 16a and a connecting portion 16b, and is provided near the grip portion 12 by being connected to the inner cutting line via the connecting portion 16b.

[0044] Incidentally, when cutting and raising the gripping portion 12 (handle structure portion) which is a separately formed structure, as shown in Fig. 12, it is possible that a part 11a of the top surface 11 of the inner box 10, which is a part that does not actually need to be raised (a part shown with cross-hatching in the figure), will rise up together with the gripping portion 12. If this happens, the semicircular or U-shaped hole part (semicircular in the figure) of the cut and raised gripping portion 12 for hooking the fingers will be blocked by the part 11a of the top surface 11 of the inner box 10.

[0045] Therefore, as shown in Fig. 13, end 13c of cutting line 13 is provided away from fold line m (or flap outline line fg described later: Fig. 14) of the base structural part of inner box 10 so as not to intersect with it. In other words, the end of the cutting line constituting the outline of gripping part 12 (handle structural part) is provided away from the boundary line (m or fg) between top surface part 11 (handle structural part arrangement surface) and adjacent surface 18 of inner box 10 (structural part) so as not to intersect with said boundary line. This prevents the semicircular or U-shaped hole part (semicircular in the figure) of gripping part 12 for hooking the fingers from standing up together with gripping part 12, preventing the hole of the gripping part from being blocked.

[0046] As shown in FIG. 14, the gripping portion 12 is provided on the outer longitudinal flap surface (the surface to be opened and closed) 19 of the inner box 10. In this case, the flap surface 19 is the surface where the handle structure is arranged, and the flap outline fg is the boundary line with the adjacent surface 18. This allows the inner box 10 to be easily removed from the outer box in a multi-packaging in which the inner box 10 is stored inside the outer box. The gripping portion 12 is provided so as to be located near the flap outline fg when cut and raised. As a result, as shown in FIG. 15, the gripping portion 12 is located near the upper end of the side wall of the inner box 10 (the portion with diagonal lines in the figure), so that the point of action of the force lifting the mass of the packaged object stored inside is near the upper end of the side wall of the inner box 10, and no force is applied to open the outer longitudinal flap surface 19 when the box is lifted, making it difficult for force to be applied to the adhesive tape fixing the flap, and therefore it is possible to prevent the adhesive tape from peeling off, causing the box to fall instantly and become unstable.

[0047] 16 shows a configuration example that is not an embodiment, in which the gripping portion 32 is disposed toward the center of the top surface of the inner box 30. In this case, the load of the contents and the force lifting the gripping portion are applied toward the center, which generates a flap opening force, and the adhesive tape NT that secures the flap 32 may be subjected to force and may peel off.

[0048] In the embodiment, double-sided corrugated cardboard or multi-sided corrugated cardboard can be used for the inner box 10. When a heavy package is to be placed inside, it is preferable to use multi-sided corrugated cardboard.

[0049] Fig. 17 is a development view showing an example of a cardboard sheet constituting the inner box 10. The inner box 10 shown in this figure has four flaps 19 arranged on both sides and is composed of a body frame portion 21 that contacts the flaps 19 via fold lines 20. Of the four flaps 19, flaps 19A and 19B on the upper side in the figure are top flaps, and flaps 19C and 19D on the lower side in the figure are bottom flaps. Grip portions 12 (not shown in Fig. 22), which are separate formation structures, are provided on the top flaps 19A and 19B.

[0050] Figure 18 shows an example of a configuration in which gripping portion 12, which is a separate structure, is disposed on side surface 18 of inner box 10. Grip portion 12 is also provided on the opposite side surface, which is hidden in the figure. In this example, additional bundled items can be inserted into inner box 10 by using hole 22 cut into gripping portion 12 provided on the side surface of the inner box. Finally, an experiment will be described in which the force required to cut and raise the gripping portion 12, which is a separate formation structure, is examined using a product that does not have the cut line 14, which is a characteristic feature of the present invention, and a product that does have it.

[0051] <Verification 1> In Fig. 19, the left side shows a package without cut lines 14, and the right side shows a package of this embodiment with cut lines 14. In both configurations, a hole H was provided in the center of the push-in portion 16 of the separation structure that cuts and raises the grip portion 12, and the pulling force required to cut and raise the grip portion 12 from this hole H was measured using a push-pull gauge. The pulling direction in the verification experiment is the direction shown by the arrow in the figure. The maximum pull-opening force and average value in the experiment conducted three times are shown in Table 1 below.

[0052] [Table 1]

[0053] The average value is 8133.3 gf for the configuration of type A, i.e., not having the cut line 14, whereas the average value is 2073.3 gf for the configuration of the embodiment having the cut line 14. This demonstrates that the configuration of the embodiment having the cut line 14 allows the grip portion 12 to be cut and raised with less force.

[0054] The sheet-like forming member as the material for forming the package is not limited to a cardboard sheet, and any forming member can be used. Currently, cardboard sheets are excellent in many respects, such as shock absorption, environmental performance, weight, price, availability, resource recovery and recyclability, and cardboard sheets are used as the material in the embodiment. If advantageous materials are developed and realized in the future, it is possible to practice the present invention using such materials.

[0055] In the package according to the present invention, the handle structure can be raised with almost no resistance in the initial stage of raising it, which eliminates the resistance caused by interference with the structure and promotes the cutting of the connecting parts, making it possible to cut and raise the handle structure more labor-saving. Furthermore, the handle structure can be raised reliably without being cut apart.

[0056] In addition, the cut line is formed by a curved line that is bent, or a reference direction line that connects the midpoint of the cut line and the boundary point that is the start point of the cut line is parallel to the standing direction of the handle structure or forms an acute angle with the curved cut line, so that the handle structure can be cut and raised with less labor. Also, the handle structure can be raised reliably without being cut apart.

[0057] In addition, the cut line is arranged so that it has at least two sides whose tips face the handle structure, and the angle β between the edge at the tip of the cut-up direction and the rising direction of the part cut and raised along the cut line is parallel or acute, which also makes it possible to cut and raise the handle structure in a labor-saving manner.

[0058] Furthermore, by setting the acute angle within the range of 1 to 40 degrees, it is possible to achieve the same effect as when the angle with respect to the standing direction is parallel.

[0059] Furthermore, since the outer shape of the handle structure is semicircular or U-shaped, the handle structure can be cut and raised smoothly.

[0060] Furthermore, since the outer shape of the handle structure is U-shaped or trapezoidal, handle structures of various shapes can be used, and even in such cases, cutting and raising can be easily performed.

[0061] Also, when the cut line is in a dogleg or U-shape, accidental cutting can be prevented.

[0062] Furthermore, by providing two or more cut lines on the cutting line, reliable cutting can be achieved.

[0063] In addition, a distal cut line is provided toward the distal end of the connecting portion where the cut line is provided, and the distal cut line is provided so as to fall within a range toward the distal end rather than the center of the connecting portion, thereby making it possible to perform even more reliable and easy cutting and raising using both cut lines.

[0064] In addition, by providing a push-in portion consisting of a cut portion and a connecting portion near the handle structure, it is possible to push in the push-in portion to open a hole and then hook a finger into the hole to erect the handle structure, making it easier to erect the handle structure.

[0065] In addition, since the pushing-in portion is connected to the cutting line via the connecting portion, it is possible to continue cutting from the pushing-in portion to the cutting line, so that the handle structure can be erected more reliably and easily.

[0066] Furthermore, since the outer shape of the push-in portion is semicircular, U-shaped, or rectangular, the cutting and raising operation can be easily performed using push-in portions of various shapes.

[0067] Furthermore, by providing the handle structure on the outer longitudinal flap surface of a multi-packaged inner box that contains the packaged item, a handle structure can be formed to easily remove the inner box from the outer box in a multi-packaged package consisting of multiple box bodies.

[0068] In addition, the end of the cutting line that constitutes the outer shape of the handle structure is provided away from the boundary line between the handle structure arrangement surface and the adjacent surface of the structure so as not to intersect with the boundary line, thereby preventing parts that do not need to stand up from standing up together with the handle structure, and thereby preventing the opening of the handle structure from being blocked.

[0069] Furthermore, by positioning the handle structure so that it is located near the outline of the flap surface when cut and raised, the handle structure can be formed to be located near the top of the side wall of the inner box. This means that the point of application of the force that lifts the mass of the packaged item is located near the top of the side wall of the inner box. As a result, no force is applied to the outer longitudinal flaps when the inner box is lifted, and force is unlikely to be applied to the adhesive tape that secures the flaps. This prevents the adhesive tape from peeling off, causing the inner box to fall instantly and become unstable.

[0070] Furthermore, since the handle structure is provided on the surface of the structure configured as a box, additional packed items can be inserted into the packaging body, for example by using a hole cut into a handle portion provided on the side of the inner box.

[0071] Furthermore, since the structure is made of a sheet-like forming member, the packaging body can be produced at low cost. Furthermore, by using cardboard as the sheet-like forming member, costs can be reduced and a good balance of environmental friendliness, weight, price, availability, resource recovery, recyclability, etc. can be achieved at a high level.

[0072] In addition, by using double-sided or multi-layered corrugated board, it is possible to meet a variety of performance requirements. Multi-layered corrugated board can be used when the packaged item is heavy and the package requires a certain degree of rigidity.

[0073] In addition, by packaging the image forming unit for an image forming apparatus or the image forming apparatus as the packaged object, the inner box containing the heavy packaged object can be safely removed by using the handle structure that is reliably erected, thereby preventing the image forming unit or the image forming apparatus from breaking down or being damaged.

[0074] Although the present invention has been described above based on the illustrated examples, the present invention is not limited to these. The shape and size of the package, or the size, shape, and position of the handle structure, etc. can be set appropriately. The image forming unit for the image forming apparatus as the packaged object is not limited to the image forming unit itself, but may be any of various built-in units. Also, the image forming apparatus is not limited to a printer, but may be a copier, a facsimile, or a multifunction machine with multiple functions. [Explanation of symbols]

[0075] 10 Inner box (packaging) 11 Structure (base structure, handle structure placement surface) 12 Grip part (separate formation structure, handle structure part) 13 Cutting line 13a Notch 13b Joint 14,34,44 Cut lines 14a base 14c Tip 15 End cut line 16 Push-in section 17 Cutting line extension 18 Inner box side (structure, adjacent surface) 19 Flap surface 20 Fold lines α Angle between the cut line and the rising direction β Angle between the tip cut line and the rising direction of the cut part J Center reference line kh standing direction kj reference direction line kk standing direction line kp Starting point of the cut line ks standing direction line m boundary line P boundary point [Prior art documents] [Patent documents]

[0076] [Patent Document 1] Japanese Utility Model Application Publication No. 02-102329

Claims

1. A package having a handle structure as a separate structure that is formed by a cut line and can stand up from a structure that forms a storage space for storing a packaged item, The cutting line comprises a notch portion and a connecting portion, A cut line is provided starting from a boundary point between a cut end side end of a predetermined cut portion and a cut start side end of the connecting portion with respect to a central reference line which is a symmetrical axis of the handle structure, The cut line has a base portion extending from the boundary point parallel to or at an acute angle to the upright direction of the handle structure, and a tip portion turning from the base portion toward the end portion or the vicinity of the end portion of the connecting portion, A packaging body, characterized in that the cut line is provided so as to fall within a range on the boundary point side of a center line of the connecting portion which is parallel to the standing direction of the handle structure portion.

2. The packaging body described in claim 1, characterized in that the cut line is composed of a curved straight line or a reference direction line connecting the midpoint of the cut line and the boundary point which is the starting point of the cut line, which is parallel to or at an acute angle to the standing direction of the handle structure.

3. A package having a handle structure as a separate structure that is formed by a cut line on a predetermined surface of a structure that constitutes a storage space for storing a packaged item and that can stand up from the structure, The cutting line comprises a notch portion and a connecting portion, A cut line is provided on the predetermined surface, the cut line having a starting point outside the area of ​​the handle structure and in the vicinity of the connecting portion, The packaging body, wherein the score line is provided so that a tip of the score line extending from the starting point has at least two sides facing the handle structure portion.

4. 4. The package according to claim 3, wherein an angle β between the edge at the tip end in the cut-and-raise direction and the rising direction of the portion cut and raised along the cut line is parallel or acute.

5. The package according to any one of claims 1 to 4, wherein the acute angle is in the range of 1 to 40 degrees.

6. The package according to any one of claims 1 to 5, wherein the outer shape of the handle structure is semicircular or U-shaped.

7. The package according to any one of claims 1 to 5, wherein the outer shape of the handle structure is U-shaped or trapezoidal.

8. 5. The package according to claim 3 or 4, wherein the cut line is in a dogleg or U-shape.

9. The packaging body according to any one of claims 1 to 8, characterized in that two or more of the cut lines are provided on the cutting line.

10. A distal end cut line is provided on the distal end side of the connecting portion where the cut line is provided, the distal end cut line being directed toward the cut line, 3. The packaging body according to claim 1, wherein the distal end cut line is provided so as to fall within a range on the distal end side of the center line of the connecting portion.

11. The packaging body according to any one of claims 1 to 10, characterized in that a push-in portion consisting of a slit portion and a connecting portion is provided in the vicinity of the handle structure portion.

12. The packaging body according to claim 11, wherein the pushing portion is connected to the cutting line via the connecting portion.

13. 13. The packaging body according to claim 11 or 12, wherein the outer shape of the push-in portion is semicircular, U-shaped, or rectangular.

14. The packaging body according to any one of claims 1 to 13, characterized in that the handle structure is provided on an outer longitudinal flap surface of a multi-packaged inner box that contains the packaged item.

15. The packaging body according to any one of claims 1 to 14, characterized in that the end of the cutting line constituting the outer shape of the handle structure is located away from the boundary line between the handle structure placement surface and an adjacent surface of the structure so as not to intersect with the boundary line.

16. The package according to claim 14, wherein the handle structure is provided so as to be located near an outline of the flap surface when cut and raised.

17. The packaging body according to any one of claims 1 to 16, characterized in that the handle structure is provided on a surface of the structure configured as a box.

18. The packaging body according to any one of claims 1 to 17, characterized in that the structure is made of a sheet-like forming member.

19. 20. The package according to claim 18, wherein the sheet-like forming member is corrugated cardboard.

20. 20. The package according to claim 19, characterized in that the corrugated board is double-sided corrugated board or double-walled corrugated board.

21. The package according to any one of claims 1 to 20, wherein an image forming unit for an image forming apparatus or an image forming apparatus is packaged as the packaged article.

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