JP2022055346A - Box with push-in piece whereby adhesive tape is easily peeled off - Google Patents

Abstract

To provide a box that does not need special attention or tools when sealing and opening the box, and allows an adhesive tape to be easily peeled off when opening.SOLUTION: The box has a pair of end face plates interchangeably connected to a pair of side face plates, and inner flaps and outer flaps provided so as to respectively continue to edges of the end face plates and side face plates. When sealing, the respective flaps are folded, and an adhesive tape is pasted at and around a joint formed by the edges on the outer flaps facing each other and the end face plates. The end face plate or the side face plate has a break line for forming a push-in piece in the proximity of at least one corner that can be bent into the inside of the box by pushing. One end of the break line is positioned at the corner of the box or close to the corner, allowing the adhesive tape to be easily peeled off.SELECTED DRAWING: Figure 1

Description

The present invention relates to a box having an outer flap and an inner flap on the opening surface, and the adhesive tape used for sealing can be easily peeled off.

To seal a box called type A, such as a cardboard box, fold a pair of outer flaps and attach adhesive tape to the seams formed by the edges of the outer flaps on opposite sides, their peripheral parts, and the end face plate. conduct.
To open a box sealed in this way, it is common to cut the adhesive tape with a cutter or the like and open it, or to peel off the adhesive tape and open it.
However, cutting the adhesive tape with a blade may damage the contents. In addition, the method of peeling the adhesive tape by hand has problems that it is difficult to peel it off, it takes time and effort, and the nails are damaged when it is peeled off. Therefore, the following methods have been proposed and implemented as a method of opening without using tools.

Patent Document 1 provides a notch wider than the width of the adhesive tape in the corrugated cardboard at a portion slightly distant from the end of the adhesive tape sealing the box. It is a box that is opened by peeling off the adhesive tape together with the front liner of the cardboard box using the notch at the time of opening.
In Patent Document 2, a cut line is made in the end face plate of the box to provide a push-in piece, and a hinge wire is put in the base of the push-in piece. When sealing, seal the box so that the end or part of the adhesive tape covers a part of the push-in piece. At the time of opening, the push-in piece is pushed in and rocked, the adhesive tape is peeled off from the push-in piece, and the end portion of the adhesive tape is peeled off to open the package.

In Patent Document 3, the top surface of the box is removed and the box is opened without cutting or peeling off the adhesive tape by the breaking line for removing the top surface (outer flap, inner flap) of the box.
Also, as a method mainly used by distributors, push the open side part of the end face plate of the box into the inside of the box, float a part of the adhesive tape that wraps around the end face plate from the outer flap, and insert your finger from there. There is a method of peeling off the adhesive tape and opening it.

Actual Kaihei 6-76031 Actual climb 3166259 JP-A-2017-218175

In the method of Patent Document 1, since the front liner is difficult to peel off even if a notch is used, the front liner can be peeled off only about the width of a finger unless it is carefully peeled off, and there is a problem that only a part of the adhesive tape can be peeled off. there were.
In addition, it is necessary to accurately attach the adhesive tape so that the end of the adhesive tape is positioned according to the position of the notch formed in advance, and care must be taken in the sealing work.

In the method of Patent Document 2, it is necessary to be careful that the adhesive tape covers an appropriate range of the push-in piece at the time of sealing, and since the adhesive tape is put on a part of the push-in piece at the time of opening, this part is covered. There was a problem that it could not be pushed in unless it was pushed away.

In the method of Patent Document 3, it is necessary to form a break line around the box. Therefore, if it is easy to break, the strength of the box is lowered, and if it is hard to break, it is difficult to open the box.
In the opening method used by distributors, in order to push the end face plate, the side plate connected to the end face plate and the inner flap are positioned at right angles to each other, so it is necessary to apply a strong force enough to distort the box. Therefore, at the time of opening, it was necessary to change the direction of the box so that the end face plate faces upward, put a weight on the opening side portion of the end face plate, distort the push box, and peel off the adhesive tape.

The present invention has been made by paying attention to such a problem of the prior art, and does not require special attention for attaching the adhesive tape during the sealing operation, the strength of the box is hardly reduced, and the box is transported. The purpose is to provide a box that can be easily peeled off and opened by hand without opening the box, without the need for strong force, tools, or special precautions during opening work.

In the box for solving the above problems, each pair of end face plates and side plates are alternately arranged, and the inner flap and the outer flap are extended from at least the opening side edge of each end face plate and each side plate, respectively. By attaching an adhesive tape to the seam formed by the edges of the outer flaps on the opening side facing each other at the time of sealing and the portion in the vicinity thereof and the portion in the vicinity of the seam in the end face plates, the seal is sealed. A break line for forming a push-in piece that can be bent by pressing is arranged on an end face plate near at least one corner on the opening side, and one end of the break line is the corner. Alternatively, it is characterized in that it is arranged near the corner.

Further, in the box for solving the above-mentioned problems, each pair of end face plates and side plates are alternately arranged, and inner flaps and outer flaps are provided from at least the opening side edge of each end face plate and each side plate, respectively. Adhesive tape shall be attached to the seams formed by the edges of the outer flaps on the opening side facing each other at the time of extension and sealing, and the vicinity thereof and the vicinity of the seams in the end face plates. A break line for forming a push-in piece that can be bent by pressing is arranged on a side plate near at least one corner on the opening side, and one end of the break line is the above. It is characterized in that it is arranged at or near a corner, and the other end is near the "ridge formed by the side plate and the end plate" or near the ridge.

As the break line in the present invention, not only the break line due to the perforations at regular intervals but also the break line due to the perforations at irregular intervals, the break line of the notch penetrating the end face plate, the break line not penetrating, and the zipper are used. Includes the break line that was found and the break line that combines them.
The push-in piece of the present invention refers to a portion of a straight line or a curved line surrounded by the breaking line in at least two directions. Specifically, the shape of the break line is ∪-shaped, ∨-shaped, L-shaped, or a shape in which a part of the polygon is cut off, so if you press the part surrounded by the break line, it will be pushed into the box. It is something that can be done.

Further, "the end of the break line is arranged at the corner portion" means that the break line forming the push-in piece is connected to the nearest corner portion.
The "near the corner" where the break line is arranged is within 5 cm in the horizontal direction (X direction in FIG. 1 and Z direction in FIG. 8) and the vertical direction (in FIG. 1) when the opening surface is the top surface. Refers to the range within 10 cm in the Y direction).
Near the corner where the end of the break line is arranged, the length in the horizontal direction (F in FIG. 6) from the corner is within 3 cm and the length in the vertical direction (F) when the opening surface is the top surface. G) in FIG. 6 refers to a range within 1.5 cm.

Opening a box using the present invention is carried out in two steps. In the first step of opening, when the "part that becomes the push piece surrounded by the break line" is pressed with a finger, the force concentrates on the intersection of the break lines and the bent part, and the break line begins to break and becomes the push piece. Pushed inside the box. With this as an opportunity, the break line breaks to the corner where the end of the break line is located. If the end of the break line is near the corner, the force of pushing the push piece will tear it from the end of the break line to the corner.
As a result, when the push-in piece is on the end face plate, the "open side portion of the end face plate" is the "part adjacent to the inner flap of the end face plate" (A in FIG. 3) and the "side plate of the end face plate". Since it is separated from the "adjacent part" (B in FIG. 3), it is possible to push the "part adjacent to the inner flap of the end face plate" (A in FIGS. 3 and 4) into the inside of the box with a relatively light force. Become.

When the push-in piece is on the side plate, the "part on the opening side of the side plate" is the "part adjacent to the outer flap of the side plate" (M in FIG. 10) and the "part adjacent to the end face plate of the side plate". (7b in FIG. 10), it is possible to push the "opening side portion of the end face plate" (A in FIGS. 10 and 11) into the inside of the box with a relatively light force.

Next, in the second step of opening, when the "part adjacent to the inner flap on the opening side of the end face plate" (A in FIGS. 3 and 10) is pushed into the inside of the box with a finger, the outer flap does not move, so that it is outside. A part of the adhesive tape that wraps around from the flap to the end face plate and seals the box begins to peel off from the end face plate and floats from the end face plate. The box can be easily opened by inserting a finger into the floating portion of the adhesive tape (H shown in FIGS. 4 and 11) and peeling off the adhesive tape.

If the end of the break line is placed near the corner, and even if the push piece is pushed, a part from the end of the break line to the corner remains torn, and if the push piece is on the end face plate, "End" When the "part adjacent to the inner flap on the opening side of the face plate" (A in FIG. 6) is pushed into the inside of the box, the remaining part is easily torn.
Even if there is still a small amount of unbroken part near the corner, it remains because it does not become a resistance to push in the "part adjacent to the inner flap on the opening side of the end face plate" (A in FIG. 6). It is not necessary to completely tear up to the corners.

Similarly, if a part up to the corner remains torn and the push piece is on the side plate, when the push piece is further pushed into the inside of the box, the push piece will be formed around the ridge (11c in FIG. 13). It rotates and becomes a force in the direction of pushing the end face plate to the outside of the box (J direction in FIG. 13). Since the corner portion that is a part of the end face plate also moves outward by the force in this direction, the portion that cannot be torn at the break line can be easily torn.

If the end of the break line is located too far from the corner, the tear residue between the end of the break line and the corner will be long and cannot be torn by the above method. It becomes a resistance to push in the "part adjacent to the inner flap on the side" (A in FIGS. 6 and 13). Therefore, the end of the break line toward the corner has a horizontal length (F in FIG. 6, K in FIG. 13) within 3 cm and a vertical length (G in FIG. 6) from the corner. It is desirable to be located within 5 cm.

Also, the longer the break line is from the corner to the vertical direction (Y direction in each figure), the deeper the upper part of the "open side part of the end face plate" (A in each figure) is pushed into the inside of the box with a light force. If the break line is too long, the strength of the box may decrease. Therefore, the length of the break line in the vertical direction is preferably 10 cm or less.

The present invention mainly "uses a push-in piece generally used to make a hole in a box as an opportunity to break a break line" and "extends the break line forming the push-in piece to form a break line. With the configuration in which one end is arranged at or near the corner, the opening side portion of the end face plate can be pushed in with a light force and the adhesive tape can be easily peeled off and opened.

The push-in piece cannot be pushed in and does not break even if a force is applied to a portion other than the push-in piece surrounded by the breaking line, for example, just outside the push-in piece. Also, the smaller the push piece, the more it is necessary to apply a local force to the correct position, but it is unlikely that an unintended force will be applied accurately locally. Even if the push-in piece is pushed in, the box cannot be opened except by human because the opening side of the end face plate must be pushed in and the tape must be peeled off to open the box.

As mentioned above, the break lines and push pieces of the present invention are not directly related to the peeling of the adhesive tape. Therefore, it is not necessary to pay attention to the position where the adhesive tape is attached as in the existing technology.
Further, since the push-in piece and the break line are arranged only in a part of the box, the strength of the box is hardly reduced. Furthermore, by locating the end of the break line near the corner, it is possible to prevent the box from tearing from the corner during transportation.

As described above, the features of the present invention solve the problems of the conventional technology, "no special attention is required for the position where the adhesive tape is attached during the sealing operation", "the strength of the box is hardly reduced", and "during transportation". It is possible to provide a "box that can be easily peeled off and opened by hand with adhesive tape" without opening the box "and" no strong force, tools, or special precautions are required during opening work ".

It is a perspective view which sealed the box of Example 1 of this invention with an adhesive tape. It is a development view of the box in Example 1 of this invention. It is a perspective view of the periphery of the push-in piece in the first embodiment. It is a perspective view for demonstrating the opening method in Example 1 of this invention. It is a part of the development drawing which shows the modification of Example 1 of this invention. It is a perspective view of the periphery of the push-in piece in the second embodiment. It is a part of the development drawing which shows the modification of Example 2 of this invention. It is a perspective view which sealed the box of Example 3 of this invention with an adhesive tape. It is a development view of the box in Example 3 of this invention. It is a perspective view of the periphery of the push-in piece in the third embodiment. It is a perspective view for demonstrating the opening method in Example 3 of this invention. It is a part of the development drawing which shows the modification of Example 3 of this invention. It is a perspective view of the periphery of the push-in piece in Example 4. FIG.

In the box of each embodiment, as shown in the developed view of FIG. 2, each pair of end face plates 1 and side plates 2 are alternately arranged, and the inner flaps 3 and the inner flaps 3 and the inner flaps 3 from the edges of the end face plates and the side plates are respectively. It is a box with the outer flap 4 extended.

As shown in FIG. 1, when each flap is folded so that the outer flap 4 is located on the inner flap 3 at the time of sealing, the edges of the outer flap 4 on opposite sides form a seam 8. The adhesive tape 9 is attached to the seam 8 and its periphery and the end face plate to seal the seam 8.
The drawings in each embodiment are drawn with the opened surface as the top surface, where X in FIG. 1 and Z in FIG. 8 indicate the horizontal direction, and Y in both figures indicates the vertical direction.

The adhesive tape 9 used to seal the box may be any tape that can be peeled off from the box. Further, in the figure of the embodiment, the adhesive tape 9 is shown transparent in order to clearly show the seam 8 of the outer flap 4.
The break line in each embodiment is a break line at regular intervals penetrating the box except for some modifications, but if a push-in piece can be formed, a break line due to irregularly spaced perforations, A break line due only to a notch penetrating the end face plate, a break line not penetrating, a break line using a zipper, or a break line combining these may be used.

In the present invention, only one push-in piece is required for opening, but in order to make it easier to push in regardless of the orientation of the box or the dominant hand of the opener, in each embodiment, the breaking line forming the push-in piece is the end face plate or each end face plate. It is formed in a total of four places, two on each side plate.
The numerical values shown in the examples are examples, and the appropriate numerical values may change depending on the material and thickness structure of the plate forming the box, the strength of the plate, and the size and shape of the box. Therefore, the claims of the present invention are not limited to this value.

(Example 1)
The easily openable box according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4.
As shown in the perspective view of FIG. 1 and the developed view of FIG. 2, each end face plate 1 of the box of the first embodiment of the present invention has four corner portions 6, but in the first embodiment, each end face plate 6 is provided. In the vicinity of the two corners 6 on the opening side of the above, there is a push piece 7 formed by the break line 5.

FIG. 3 is a perspective view showing the push-in piece 7 and its periphery in the first embodiment by enlarging the XY portion of FIG. 1. The push piece 7 of the first embodiment is formed by being surrounded by a break line 5 in two directions, and one end of the break line 5 extends to a corner and the other extends in the vertical direction (Y direction). The break line forming the push piece 7 of the first embodiment is within a range of 4 cm in the horizontal direction (X direction in FIG. 3) and 3 cm in the vertical direction (Y direction in FIG. 3) from the nearest corner. be.

The opening method and operation of Example 1 will be described. In the method of opening the box, when the "part 7 to be the push piece surrounded by the break line 5" of the end face plate 1 is pushed with a finger, the break line 5 at the perforation breaks and the push piece 7 is generated. Further pushing the push piece 7 breaks the break line 5 extending from the push piece 7 to the corner 6. Similarly, the breaking line in the vertical direction (Y direction in FIG. 3) also breaks to the end.

As a result, the "part on the opening side of the end face plate 1" is adjacent to the "part adjacent to the inner flap 3 on the opening side of the end face plate 1" (part A in FIG. 3) and the "side plate 2 of the end face plate 1". It is divided into "parts" (part B in FIG. 3).
Therefore, the "part adjacent to the inner flap 3 on the opening side of the end face plate" (the part A in FIG. 3) can be pushed into the inside of the box with a relatively light force, and when pushed in, the outer flap is pushed as shown in FIG. Since the edge on the end face plate side does not move, the adhesive tape peels off from the end face plate and a gap H is formed. By putting a finger in this gap H and peeling off the adhesive tape 9, the box of Example 1 can be easily opened without using a tool.

As described above, the end face plate can be pushed with a relatively light force by breaking a part of the box using the push-in piece, whereby the adhesive tape can be easily peeled off and the box can be opened.
Further, in the present invention, no tool or special care is required for sealing and opening the box, and the breaking line forming the push-in piece is formed in a narrow range, so that the strength of the box is hardly reduced. Further, in order to push the push-in piece, a local force must be applied to the correct position, so that the box will not be opened even if an unintended force is applied to the box.

FIG. 5 shows a modified example of the break line forming the push-in piece 7 shown in the first embodiment. Each figure of FIG. 5 corresponds to the part XY of FIG.
The modified examples (a) and (b) of FIG. 5 are examples in which the pushing piece is easily pushed by using the breaking line of the curve close to the shape of a finger. The modified example (b) is an example in which the direction of the pushing piece of the modified example (a) is further changed to facilitate pushing from the opening surface of the box.
In the modified examples (c), (d), and (e) of FIG. 5, the three sides of the push piece are surrounded by straight or curved break lines to facilitate pushing, and the break lines are easily connected to the corner 6. Is.

The modified example (f) of FIG. 5 is an example in which a small indentation piece is formed only by a notch (thick line in the figure) through which the break line is not a perforation. Although the push-in piece is small, it is a notch that penetrates, so it is easier to push in than a perforation and it is easy to trigger a break. In addition, since the pushing piece is small, it cannot be pushed unless an unintended force is applied accurately and locally, so even if a notch that penetrates is used, it is unlikely to trigger a break.
The opening method of these modified examples and the actions and effects other than those described above are the same as those of the first embodiment.

(Example 2)
A box that can be easily opened according to the second embodiment of the present invention will be described with reference to FIG.
FIG. 6 is an enlarged view of the portion corresponding to XY in FIG. 1 in Example 2, and is a perspective view showing the push-in piece 7a and its periphery in Example 2.
The box of Example 2 is the same as that of Example 1 shown in FIG. 3, except that the positions of the ends of the break lines toward the corners are different.

The position of the break line 5a forming the push-in piece 7a of the second embodiment is the same as that of the first embodiment, 4 cm in the horizontal direction (X direction in FIG. 3) and 3 cm in the vertical direction (Y direction in FIG. 3) from the corner portion 6a. Is within the range of.
In Example 2, the position of the end of the break line 5a toward the corner is different from that of Example 1, and the end of the break line 5a is 2 cm horizontally (length F in FIG. 3) from the corner 6a in the vertical direction. It is at 0.5 cm (length of G in FIG. 3).

The opening method and operation of Example 2 will be described with reference to FIG.
When the "part 7a that becomes the push-in piece surrounded by the break line 5a" of the end face plate 1a is pushed in, the perforated break line 5a breaks and the push-in piece 7a is generated. Since the push piece 7a is formed in the vicinity of the corner portion 6a of the end face plate 1a, the portion E between the end of the break line 5a and the corner portion 6a is also torn and connected by the force of pushing the push piece 7a.

Next, when the "part adjacent to the inner flap on the opening side of the end face plate" (part A in FIG. 6) is pushed in with a relatively light force, the edge of the outer flap 4a on the end face plate side does not move, so "the opening side of the end face plate". The more the "part adjacent to the inner flap" A is pushed in, the more the adhesive tape 9a is peeled off from the end face plate, and a gap H is formed. The box of Example 2 can be easily opened by putting a finger in the gap H and peeling it off.

Even if the portion 7a that becomes the push-in piece is pushed in, the portion E between the end of the break line 5a and the corner portion 6a may not be partially torn, but "a portion adjacent to the inner flap on the opening side of the end face plate". "(Part A in FIG. 6) is pushed in, and the remaining part is easily torn up to the corner 6a. Even if a part of the tear remains, it does not become a resistance when pushing the "part adjacent to the inner flap on the opening side of the end face plate" A because the tear remains because no force is applied.

As described above, the difference between Example 1 and Example 2 is the position of the end of the break line toward the corner. If the end of the break line is connected to the corner (the end is at the corner), it may tear from the corner when a strong force is applied to the box. In the second embodiment, by arranging the end of the break line near the corner instead of the corner, there is an effect that it is difficult to tear from the corner 6a even if an unintended strong force is applied to the box.
Other effects are the same as in Example 1.

A modified example of the break line forming the push-in piece 7a shown in the second embodiment will be described with reference to FIG. 7. A modified example of the second embodiment is a push-in piece formed by a notch (thick line in FIG. 7) penetrating the end face plate as a break line. The length of each notch is 3 cm. The position of the end of the break line toward the corner is the same as in the second embodiment, 2 cm in the horizontal direction and 0.5 cm in the vertical direction from the corner 6a.

Since the notch is not connected to the corner as in the second embodiment, the box will not be torn from the corner even if the box receives a strong force during transportation or the like.
Further, since the push-in piece using the notch penetrating the modified example may be small for the same reason as the modified example (f) of the first embodiment, it is unlikely to trigger a break due to an unintended force such as during transportation.
The opening method, action, and other effects of the modified example of the second embodiment are the same as those of the second embodiment, but the pushing piece is easily pushed in without significantly affecting the sealing force of the box and the strength of the box.

(Example 3)
The easily openable box of Example 3 of the present invention will be described with reference to FIGS. 8 to 11.
As shown in the perspective view of FIG. 8 and the developed view of FIG. 9, each side plate 2b of the box of the third embodiment of the present invention has four corner portions 6b, respectively. In the third embodiment, there is a push piece 7b formed by the break line 5b in the vicinity of the two corner portions 6b on the opening side of each side plate 2b.

FIG. 10 is an enlarged perspective view showing the push piece 7b and its periphery in the third embodiment by enlarging the ZZ portion of FIG. The push piece 7b of Example 3 is formed in a ∨ shape surrounded by a breaking line 5b in two directions, one end of the breaking line 5b is located at the corner 6b, and the other end of the breaking line is near. It is located at the ridge 11b in Sakai of the side plate and the end plate.
The push piece 7b of the third embodiment is formed in a range of 4 cm in the horizontal direction (Z direction in FIG. 10) and 3 cm in the vertical direction (Y direction in FIG. 10) from the nearest corner portion.

The opening method and operation of Example 3 will be described. In the method of opening the box, when the "part 7b to be the push piece surrounded by the break line 5b" of the side plate 2b is pushed with a finger, the perforated break line 5b is broken and the push piece 7b is generated. When the push piece 7b is further pushed, the break line 5b breaks up to the corner portion 6b and up to the ridge.

As a result, the "part on the opening side of the side plate 2b" becomes the "part adjacent to the outer flap 4c of the side plate 2b" (the part M in FIG. 10) and the "part on the opening side of the end face plate 1b of the side plate 2b". It is divided into "adjacent parts" (part 7b in FIG. 10). Therefore, as shown in FIG. 11, the upper part of the "opening side portion of the end face plate" (the portion A in FIG. 10) can be pushed into the inside of the box with a relatively light force, and when pushed in, the side plate side of the outer flap can be pushed. Since the edge of the box does not move, the adhesive tape peels off from the side plate and a gap H is formed. By putting a finger in this gap H and peeling off the adhesive tape 9b, the box of Example 3 can be easily opened without using a tool.
The inner flap in FIG. 11 is omitted for the sake of clarity.

As described above, in the third embodiment, no tool is required when opening the box, and a part of the box is broken by using the push-in piece formed on the side plate. It can be pushed in with a light force, which allows the adhesive tape to be easily peeled off and the box to be opened.
In particular, since the side plate of a general box is larger than the end face plate, it is easier to secure the strength of the box by arranging a push piece or a breaking line near the corner of the side plate as in the third embodiment.
Further, as shown in FIG. 8, since the break line 5b forming the push-in piece 7b is formed in the vicinity of the corner portion 6b of the side plate 2b, it is not necessary to pay attention to the sticking position of the adhesive tape 9b as in the prior art. ..
Other effects are the same as in Example 1.

FIG. 12 shows a modified example of the break line forming the push-in piece 7b of Example 3. Each figure of FIG. 12 corresponds to the ZZ portion of FIG.
The modified example (a) of FIG. 12 is an example in which straight breaking lines are combined and the push pieces are surrounded in three directions. It has the feature that it is easier to push in than in two directions.

In the modified example (b) of FIG. 12, the breaking line extending in the diagonally lower ridge direction of the modified example (a) is lengthened in the vertical direction (Y direction) and changed to a notch (thick line in (b)) penetrating. This is an example.
The longer the length of the break line in the vertical direction (Y direction), the easier it is to push in the "open side part of the end face plate" (the part A in FIG. 10), but the strength of the box is stronger as when the side plate is thick. If it is high, it will not be possible to break all the long break lines just by pushing the push piece.

The modification (b) is an example in which a linear notch penetrating from the beginning is used to prevent this. Even if a force is applied around the penetrating straight notch, the notch does not extend or the box breaks, but when the push piece is pushed in, the break line and the penetrating straight notch can be connected.
Even if it is a perforation, if the break line is too long, it affects the strength of the box. Therefore, the range in the vertical direction (Y direction) from the corner where the break line is arranged is preferably within 10 cm.

In the modified example (c) of FIG. 12, the modified example (a) is formed into a curved shape that matches the shape of a finger, and a push-in piece is formed by a notch penetrating in the same manner as in the modified example (f) of the first embodiment. This is an example in which a zipper is used for the downward breaking line.
This makes it easier to push in the push-in piece that triggers breakage, and while making it longer in the Y direction as in the modified example (b), the use of a zipper wire makes it easier to connect more stably than perforations. Compared to the modified example (b), the possibility of breaking due to an unintended force such as during transportation is further reduced.
The opening method of these modified examples and the actions and effects other than those described above are the same as those of the third embodiment.

(Example 4)
A box that can be easily opened according to the fourth embodiment of the present invention will be described with reference to FIG.
FIG. 13 is a perspective view showing the push-in piece 7c and its periphery in the fourth embodiment by enlarging the portion corresponding to ZZ in FIG.
The box of Example 4 is the same as that of Example 3 except that the positions of the ends of the break lines toward the corners are different.

The position of the break line 5c forming the push-in piece 7c of the fourth embodiment is the same as that of the third embodiment, the length in the horizontal direction (Z direction in FIG. 13) from the corner portion 6c is 4 cm, and the vertical direction (Y direction in FIG. 13). ) Is within the range of 3 cm.
In Example 4, the position of the end of the break line 5c toward the corner is different from that of Example 3, and the length (K) in the horizontal direction (Z direction in FIG. 13) from the corner 6c is 2 cm, and the length (K) is 2 cm in the vertical direction (FIG. 13). The end of the break line 5c is located at an intersection having a length of 0 cm (in the Y direction).
The other breaking line extends diagonally downward to the ridge 11b in Sakai of the side plate and the end face plate as in the third embodiment.
As described above, the difference between Example 3 and Example 4 is the position of the end of the break line toward the corner.

A method of opening the box of Example 4 will be described with reference to FIG.
When the "part 7c that becomes the pushing piece surrounded by the breaking line 5c" of the end face plate 1c is pushed in, the perforated breaking lines 5c are connected to form the pushing piece 7c. Since the push piece 7c is formed in the vicinity of the corner portion 6c of the end face plate 1c, the portion E between the end of the break line 5c and the corner portion 6c is also torn and connected by the force of pushing the push piece 7c.

Next, when the "part adjacent to the inner flap on the opening side of the end face plate" A is pushed in, the edge of the outer flap 4c on the end face plate side does not move, so the "part adjacent to the inner flap on the opening side of the end face plate" A is pushed in. The adhesive tape 9c is peeled off from the end face plate, and a gap H is formed. By putting a finger in this gap H and peeling it off, the box of Example 3 can be easily opened by hand.

Even if the "part 7c that becomes the push piece surrounded by the break line 5c" is pushed in, the part K between the end of the break line 5c and the corner portion 6c may not be partially or completely torn. In this case, if the push-in piece is further pushed, it is pushed in the J direction of FIG. 13, and the end face plate 1c is pushed outward of the box and the corner portion 6c also moves outward, so that the remaining portion is easily torn.

The effect of Example 4 is that the strength of the box is higher than that of Example 3 because the end of the break line is near the corner instead of the corner. Other effects are the same as in Example 3.

1, 1a End face plate 2, 2a Side plate 3 Inner flap 4 Outer flap 5, 5a Break line 6, 6a Square 7, 7a Push-in piece 8, Opposing seam of outer flap 9 Adhesive tape 10 Glue A Opening of end face plate Part adjacent to the inner flap on the side B Part on the opening side of the side plate and adjacent end plate E Spacing between the end and corner of the breaking line F, K Lateral spacing between the end and corner of the breaking line G Vertical distance between the end and the corner of the break line H Gap between the adhesive tape and the end face plate J Direction to push the push piece M Parts other than the push piece of the side plate X, Y, Z Push piece, break line Range to be distributed

Claims (2)

Each pair of end face plates and side plates are alternately arranged, and the inner flap and the outer flap are extended from at least the edge of each end face plate and each side plate on the opening side, and the outer flaps on the opening side are extended at the time of sealing. A box that is sealed by attaching an adhesive tape to a seam formed by edges on opposite sides and a portion in the vicinity thereof and a portion in the vicinity of the seam in each of the end face plates, and is at least on the opening side. A break line for forming a push-in piece that can be bent by pressing is arranged on an end face plate near one corner, and one end of the break line is arranged at or near the corner. A box that can be easily peeled off and opened. Each pair of end face plates and side plates are alternately arranged, and the inner flap and the outer flap are extended from at least the edge of each end face plate and each side plate on the opening side, and the outer flaps on the opening side are extended at the time of sealing. A box that is sealed by attaching an adhesive tape to a seam formed by edges on opposite sides and a portion in the vicinity thereof and a portion in the vicinity of the seam in each of the end face plates, and is at least on the opening side. A break line for forming a push-in piece that can be bent by pressing is arranged on a side plate near one corner, and one end of the break line is placed at the corner or near the corner, and the other. A box in which the adhesive tape can be easily peeled off and opened, which is characterized by being located near the "ridge formed by the side plate and the end face plate" or the ridge.

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