JPH01240440A - Package box - Google Patents

Abstract

PURPOSE:To prevent a packaged material from being damaged at the time of unpackaging and packages from falling by a method wherein a cut which reaches from a liner of overlapping parts to a center core at least on one of overlapping parts of an overlapping member. CONSTITUTION:On overlapping parts 16a, 17a, cuts 24, 25 which reach, for example, from a rear liner 11a to a center core 11b are made. The cuts 24, 25 prevent the urged pressure acting an the overlapping parts 16a, 17b from dispersing to the exterior and concentrate this urged pressure on the overlapping parts 16a, 17b while deforming the overlapping parts 16a, 17a irrespective of their exterior. The center core 11b can be thus easily depressed by urged pressure caused upon adhesion, so that overlapping height of the overlapping parts 16a, 17b can be reduced. This prevents package boxes from falling when they are stacked. A flap 16 can also prevent a device which is subject to an edge at the time of unpackaging from being damaged.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to packaging boxes made of cardboard.

[Conventional technology]

14 to 16a show an example of a conventional cardboard packaging box 1 for packaging a straight tube type lighting fixture A to be embedded in the ceiling. This conventional packaging box 1 stores a support member 2 made of cardboard that supports both ends of the device A and a cushioning material 3 such as styrofoam, stores the device A, and then stores the device A. A protective plate 4 made of cardboard or the like is stored so as to cover it. After this, the pair of inner lid flaps 1a are bent, and finally, the pair of outer lid flaps 5 and 6 are bent so that their ends are folded together, and then these outer flaps 5 and 6 are bent. 15 and 16 by gluing the adhesive tape 7 over the tip.
As shown in the figure, prevent the outer flaps 5°6 from opening,
The device A is packaged. To install the above-mentioned device A, when unpacking the packaging box 1 at a construction site, etc., insert the tip of a screwdriver or knife from the direction of the arrow in FIG. Cutting is often done along the tip, in which case the protective plate 4
This prevents the instrument A from being damaged.

Moreover, FIGS. 17 to 19 show other examples of the conventional cardboard packaging box 1 for packaging the straight tube type lighting fixture A embedded in the ceiling. This conventional packaging box 1 accommodates a support member 2 made of cardboard that supports both ends of the instrument A, and a cushioning material 3 such as styrofoam, and then stores the instrument A therein. Next, after bending the pair of inner flaps 1a, the - outer flaps 8 are closed and placed on the flap receiver 9. After this, the side surface 1b and the claw surface 1c where the outer flap 8 and the flap receiver 9 are connected
By adhering adhesive tape 10 at multiple locations across the outer flap 8 and the outer flap 8, the outer flap 8 is prevented from opening as shown in FIGS. 18 and 19, and the instrument A can be packaged. ing. 2: When installing the tool A and unpacking the packaging box 1 at the construction site, insert the tip of a screwdriver or knife from the direction of the arrow in FIG. Cut along.

[Problem to be solved by the invention]

However, the former conventional example has a problem in that the protective plate 4 is required to prevent damage to the packaged object such as the instrument A during unpacking. In addition, in the latter conventional example, since the outer flap 8 and the flap receiver 9 overlap, the height dimensions B and C in FIG. The problem was that it was easy to cause.

SUMMARY OF THE INVENTION An object of the present invention is to provide a packaging box that can prevent the packaged items from being damaged when cutting the tape during unpacking without using a protective plate, and also prevents the contents from collapsing. .

[Means to solve the problem]

The present invention is applied to a cardboard packaging box in which an adhesive tape is used to prevent the outer lid flap from opening. In order to achieve the above object, in the packaging box of the present invention, the width of the outer lid flap is set to a size at which the overlap portion consisting of the tip of the flap overlaps, or The flap part is sized to overlap with a flap receiver serving as another overlap part, and at least one of the overlapping surfaces of the overlap part is provided with a cut extending from the liner on this overlapping surface side to the core.

In addition, in order to achieve the above object, in the packaging box of the present invention, the width of the outer lid flap is set such that the width of the outer lid flap overlaps with the overlap portion formed by the tip of the flap, or the width of the outer lid flap is The flap portion is sized to overlap with a flap receiver serving as another overlap portion, and the overlap portion of the outer flap for the lid is formed of only a liner or of single-sided corrugated cardboard.

[Effect]

The items to be packaged are stored in the packaging box configured as described above.
．． After closing the outer lid flap, an adhesive tape is applied continuously in the length direction of the outer flap to prevent the outer flap from opening, and at that time, pressure is applied to the overlap portion. The notch provided on the overlapping surface side of the overlap part breaks the corrugated structure in the overlap part, so it is necessary to prevent the above-mentioned pressure force from dispersing to the outside of the overlap part and concentrate the pressure force on the overlap part. It has become. For this reason, the overlap part with the notch provided on the molded surface side is easily crushed by the pressure and overlaps with the other overlap part or flap holder, reducing the height of the overlap. When the outer lid flap is formed of only a liner or one-sided cardboard, the liner or one-sided cardboard is provided so as to overlap the tip of the other outer lid flap or the liner in the flap holder,
The outer lid flap is prevented from opening by pasting adhesive tape. Due to the pressing force associated with this adhesion, the center of the overlap part is easily crushed and overlaps the liner in the other overlap part or flap receiver, reducing the height of the overlap. Note that even when the overlap portion is made of single-sided corrugated cardboard, the overlapping height can be reduced because the overlapping portion is easily crushed by pressure.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

In the figure, 11 is a packaging box, which is, for example, a straight tube type lighting fixture embedded in the ceiling (that is, an item to be packaged) as shown in Figure 5.
This is for packaging A. In addition, the middle part of FIGS. 2 and 5 is a cardboard end support member that fits into the end of the above-mentioned device A and supports this device from below, and E is a cushioning material such as foamed urethane. , which is placed between the end surface of the device A and the tab surface of the packaging box 11.

The packaging box 11 is formed by punching out a double-sided cardboard board, as shown in FIG. 6, by bending it along ruled lines 12 and connecting the necessary parts. In other words, in FIGS. 5 and 6, reference numeral 13 is the bottom plate, and 14.15 is the ruled line on the front and rear edges of the bottom plate 13.
2, side plates 16.17 are side plates 14, 15
Outer flap for lid connected via ruled line 12, 18゜1
Reference numeral 9 denotes a tooth plate connected to the left and right edges of the bottom plate 13 via the ruled line 12, 20.21 refers to an inner lid flap connected to the 18° 19 tip edge of the tooth plate via the ruled line 12, 22.23
This is a connecting piece connected to the front and rear edges of the frame plate 18 and 19 via ruled lines 12.

The connecting piece 22 is stacked on the inner surface of the end of the side plate 14 and fixed by gluing, stitching, etc., and the other connecting piece 23
It is superimposed on the inner surface of the end portion of the side plate 15 and fixed by gluing, stitching, etc., so that it can be assembled into a box shape. In the plate material shown in FIG. 6, the middle steps are provided at regular intervals along the left-right direction in FIG.

The width F of the outer lid flaps 16.17 is larger than half the width G of the bottom plate 13, and these outer flaps 16.17
When it is closed, its tip becomes the overlap part 16a.
, 17a are formed so as to overlap each other. These overlap portions 16a, 17a are provided with cuts 24, 25 extending from the back liner 11a to the midsole 11b, as shown in FIGS. 1 and 3, for example.

Note that 11c in FIGS. 1 and 3 indicates a surface liner. The cut 24 is provided along the length of the outer lid flap 16.17, and the cut 25 is provided along the width of the outer lid flap 16.17. Although it is more effective to provide the notches 25 in terms of achieving the purpose, they may be omitted, and multiple rows of the notches 24 may be provided.

This packaging box 11 stores the end support members supporting both ends of the instrument A and the cushioning material E, and then stores the end support members supporting both ends of the instrument A.
Then, the pair of outer lid flaps 16 and 17 are folded so that their overlapping portions 16a and 17B overlap.

During this bending, the cut 24.2 as in this embodiment is
．． According to method 5, either of the outer lid flaps 16.17 can be bent first, so the automatic machine that bends the outer lid flaps 16.17 can be folded from either direction. However, the packaging box 11 can be supplied. Adhesive tape 2 is then applied over the tips of these outer flaps 16 and 17.
6, the flaps 16 and 17 are prevented from opening, and the device A is packaged. The packaging box 11 in a completed packaging state is shown in FIG.

The adhesive tape 26 is pasted along the length of the packaging box 11 by fast reading, and a known automatic tape pasting device is used.

In the packaging described above, when the adhesive tape 26 is attached, the upper overlap part 16a is pressed by the adhesive tape 26 and pressed against the lower overlap part 16a. By the way, the cardboard structure of the overlap parts 16a and 17a has been destroyed by the cuts 24 and 25.
The cuts 24° and 25 are the overlap portions 16a and 17a.
The pressing force acting on the overlapped portions 16a, 17a is prevented from being dispersed to the outside, and is concentrated on the overlapped portions 16a, 17a, and the overlapped portions 16a, 17a are deformed independently of the outside.

Therefore, the cut 24.2 is located on the overlapping surface side of the overlap portions 16a and 17a.
Overlapping part 1 of the cardboard structure broken by 5
7a, the inner core 11b is easily crushed by the pressurizing force accompanying the pasting, and as shown in FIG. You can reduce the overlap height of 17B comrades.

Therefore, when the wrapped packaging boxes 11 are stacked on top of each other, it is possible to prevent the loads from collapsing.

Also, when installing the above-mentioned device A, do not use a screwdriver when unpacking at the construction site. Cutting the tape with the edge of the knife is carried out by inserting the edge of the knife into the part of the tape that covers the stepped portion formed by the outside flaps 16 and 17 from the direction of the arrow in Figure 1 and pulling it along the length. . Since the outer lid flap 16 is located below the cutting edge insertion portion, the cutting edge can be received by this flap 16. Therefore, it is possible to prevent the cutting edge from coming into contact with the instrument A and damaging the instrument A, and it is also possible to omit a protective plate for protecting the instrument A from the tape cutting edge, thereby reducing packaging costs. be able to.

In addition, in the structure of the first embodiment, when the order of folding the outer lid flaps 16 and 17 is determined, the overlap part of one flap that is folded first and the other flap that is folded later. At least one of the overlapping surfaces of the liner may be provided with a cut extending from the liner on the overlapping surface side.

Even in that case, it is best to make a notch on the overlapping surface side of the overlap part of the other flap that will be folded later.
Since the adhesive force of the adhesive tape easily acts on this overlap part, the overlap part can be made more easily crushed.

Further, in the configuration of the first embodiment, the outer lid flap 16 is
The present invention can also be applied to a cardboard packaging box in which the overlapping portion at the leading end is overlapped with a flap holder serving as another overlapping portion.

Next, a second embodiment of the present invention shown in FIGS. 7 to 12 will be described. Structures similar to those of the first embodiment will be designated by the same reference numerals, explanations thereof will be omitted, and different configurations will be described. The configuration will be explained below.

In this embodiment, the overlap portion 16a of one of the outer lid flaps 16 does not have a structure corresponding to a cut, and has a normal double-sided corrugated cardboard structure. Further, the overlap portion 17a of the other outer lid flap 17 is formed only from the surface liner 11a. The liner 11a serving as the overlap portion 17a is superimposed on the upper surface of the overlap portion 16a of the outer flap 16, as shown in FIGS. 8 and 9.

The other configurations are the same as those of the first embodiment.

Therefore, also in this second embodiment, the overlapping height of the overlapping portions 16a and 17a is reduced, and it is possible to prevent the load from collapsing. Then, insert the blade edge into the lid outer flap 16 at the point where the tape is cut when unpacking.
Therefore, it is possible to prevent the lighting fixture A from being damaged by the cutting edge without using a protective plate.

Note that when the cardboard forming the packaging box is manufactured using the corrugator 29 shown in FIG. 10, a back liner 11a having a width of (G+21+2F-d)-L in each part width dimension in FIG. 12 is used. and medium 11b,
Surface liner 11 with a width of (G+2I+2F)-M
As shown in FIG.
It is obtained by punching out with a press die.

Note that the above is a case where the corrugator 29 takes out one corrugated board 30, but it is also possible to take out two sheets. In that case, the corrugated board coming out of the corrugator 29 is slittered at the center position in the width direction. It is separated into a corrugated board as shown in FIG.

Furthermore, the present invention provides a surface liner 11c instead of the overlapping portion 17a consisting of only the surface liner 11C.
Alternatively, it may be implemented using a single-sided corrugated board consisting of a back liner 11a and a core 11b.

Further, the present invention has a third embodiment shown in FIG. 13, in which the outer lid flap 31 is one piece, and the overlapping part 31a at the tip thereof is overlapped with the flap receiver 32 as another overlapping part. Cardboard packaging box 11
It can also be implemented in In this case, the overlap portion 31a that overlaps the top surface of the flap receiver 32 is formed only from the surface liner 11a, and the adhesive tape 33 that prevents the outer lid flap 31 from opening is connected to the overlap portion 31a and the flap receiver 32. A large number of them are attached to the side plate 14. Note that the other configurations are the same as those of the first embodiment, so the explanation thereof will be omitted.

Therefore, in this third embodiment as well, the overlapping height of the overlapping portions 31a and 32 is reduced, making it possible to prevent the load from collapsing. Since the cutting edge is inserted from the direction of the arrow in FIG. 13 when cutting the tape during unpacking, it is possible to prevent the lighting fixture A from being damaged by the cutting edge without using a protective plate.

〔Effect of the invention〕

Since the present invention is configured as described above, it produces the effects described below.

In the packaging box of claim 1, the notch provided in the overlap portion allows the inner core of the overlap portion to be easily crushed and the outer lid flaps or the outer lid flap and the flap receiver to be overlapped. , It is possible to prevent the packaged items from being damaged when cutting the tape during unpacking without using a protection plate, and it is also possible to package the items so that they do not collapse.

Also in the packaging box of claim 2, the overlap portion of the outer lid flap can be formed of only the liner or of single-sided cardboard, so that the outer lid flaps or the outer lid flap and the flap receiver can be overlapped. Because of this, it is possible to prevent the packaged items from being damaged when cutting the tape during unpacking without using a protection plate, and it is also possible to package the items so that they do not collapse.

[Brief explanation of the drawing]

1 to 6 show a first embodiment of the present invention, FIG. 1 is an enlarged sectional view of part 1 in FIG. 2, FIG. The figure is an enlarged perspective view of the overlap part, FIG. 4 is a perspective view of the packaging completed state, FIG. 5 is a perspective view showing the package together with the stored parts, and FIG. 6 is a developed view of the packaging box. 7 to 12 show a second embodiment of the present invention, FIG. 7 is a perspective view showing the storage parts together, FIG. 8 is a schematic side view partially shown in cross section, and FIG. Enlarged sectional view of part ■ in the figure,
Fig. 10 is a schematic perspective view showing how corrugated cardboard is manufactured using a corrugator, Fig. 11 is a plan view of the manufactured corrugated board, and Fig. 12 shows a part of the packaging box punched out from the corrugated board shown in Fig. 11. This is a developed diagram. FIG. 13 shows the third embodiment of the present invention.
FIG. 2 is a schematic side view, partially in section, of the embodiment. 14 to 15 show an example of the conventional technology, FIG. 14 is a perspective view showing the storage parts together, FIG. 15 is a perspective view showing a completed packaging state, and FIG. 16 is a schematic side view partially cut away. It is a diagram. Fig. 17 to Fig. 19 show other conventional examples, Fig. 17 is a perspective view showing the storage parts together, Fig. 18 is a perspective view showing the completed packaging state, and Fig. 19 is a partially sectional view. It is a schematic side view. 11... Packaging box, lla... Back liner, 11b
... Core, 11C ... Surface liner, 16゜17
．． 31... Lid outer flap, 16a, 17a. 31a... Overlap part, 24.25... Notch, 26.33... Adhesive tape, 32... Overlap part (flap receiver). Applicant's representative Patent attorney Takehiko Suzue Figure 5 1J Figure 11 Figure 12 Figure 13 Figure j 114 Figure 15 Figure 172 Built 180

Claims (1)

[Scope of Claims] 1. In a cardboard packaging box in which the opening of the outer lid flap is prevented by adhesive tape, the width of the outer lid flap is determined by the width of the overlapping portion formed by the tip of the flap, Or, the overlapping part at the tip of the outer flap for the lid is made large enough to overlap with the flap holder as another overlapping part, and at least one of the overlapping faces of the overlapping part is made from the liner on this overlapping face side. A packaging box characterized by having a notch that reaches the center core. 2. In a cardboard packaging box in which the outer lid flap is prevented from opening with adhesive tape, the width of the outer lid flap is determined by the width of the overlapping portion consisting of the tip of this flap, or the width of the outer lid flap. A packaging box characterized in that the overlapping portion at the tip is sized to overlap a flap holder serving as another overlapping portion, and the overlapping portion in the outer lid flap is formed of only a liner or one-sided corrugated cardboard. .