JP2014234231A - Box for sealing, easily openable sealed box, and method and tool for facilitating opening of sealed box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for facilitating the opening of a sealed box which enables the sealed box to be neatly and easily opened without requiring a special adhesive tape and without peeling off the surfaces of outer flaps upon opening; and to provide an easily openable sealed box and a box for sealing.SOLUTION: A pair of outer flaps forming a box have their respective edge parts which face each other and form a juncture. The box is sealed by fixing the respective edge parts, the vicinity thereof and end face plates with an adhesive tape. In the box, one or more cuts or flaws are formed in at least part of the adhesive tape which faces or touches the juncture of the pair of outer flaps. These cuts or flaws function to cause cracks or cut lines in the adhesive tape in the extension direction of the edge part of each outer flap when local force is applied thereto, thereby providing a method for facilitating the opening of the sealed box.

Description

  The present invention relates to a method for facilitating the opening of a sealed or sealed box, a sealed box suitable for this method, and a box for sealing.

  Conventionally, cardboard boxes for storing packages to be sent by courier etc. are located on the upper side of the inner flaps connected to the upper and lower edges of the pair of end plates. And then sealed with an adhesive tape. And in order to open the corrugated cardboard box sealed in this way, the adhesive tape was cut and opened with a cutter or the like, or the adhesive tape was peeled off and opened. Various proposals have been proposed for easily peeling such an adhesive tape from the outer flap surface of the cardboard box.

  For example, Patent Document 1 proposes an apparatus that forms a tab at the end of an adhesive tape in order to easily peel off the adhesive tape attached to a cardboard box. Further, Patent Document 2 proposes an adhesive tape having a non-adhesive portion along the side edge of the adhesive tape in order to easily peel off the adhesive tape attached to the cardboard box. Further, Patent Document 3 discloses that in order to make it easy to peel off the adhesive tape attached to the cardboard box, a cut is formed in the cardboard near the sealed adhesive tape, and the liner is peeled off using the cut to remove the adhesive tape. We have also proposed a cardboard box that can be peeled off. In addition, Patent Document 4 proposes a cardboard box that can be provided with a notch for forming an opening piece on the outer flap and can peel the adhesive tape together with the opening piece in order to make it easier to peel off the adhesive tape attached to the cardboard box. ing. Further, in Patent Document 5, in a corrugated cardboard box sealed with an adhesive tape having an oblique cut, the adhesive tape located at a portion between the outer flap end and the other outer flap end is pushed from above with a nail. Has proposed an adhesive tape that can open the cardboard box by cutting the adhesive tape and cutting the adhesive tape.

JP-A-9-58636 JP-A-7-11207 JP 2004-175451 A JP 2006-51958 A JP 2012-162714 A

  However, in the conventional method of cutting and opening the adhesive tape using a cutter, etc., it is always inconvenient if the cutter is not available because it always requires a cutter. There were problems such as hurting children and injuries to children. On the other hand, when using the methods of Patent Documents 1 to 4, it is easy to peel off the adhesive tape affixed to the cardboard box, and no cutter is required. However, according to these methods of Patent Documents 1 to 4, when the adhesive tape is peeled off from the surface of the outer flap, the liner on the surface of the outer flap is also peeled off together, so that the appearance is deteriorated and the strength of the surface is weak. Therefore, there is a problem that it becomes difficult to reuse the cardboard box as it is.

  Furthermore, when the method of Patent Document 1 is used, a device for forming a tab at the end of the adhesive tape is necessary, so that it is difficult to easily create the tab, and the tab may be caught during transportation and damaged. was there. In addition, when the method of Patent Document 2 is used, an adhesive tape having a non-adhesive portion along the side edge of the adhesive tape is easy to peel off, but the adhesive force is weakened because the area of the adhesive portion is reduced, and it is difficult to remove it during transportation. There was a problem that the adhesive part could be caught by other luggage and damaged. Further, the method of Patent Document 3 is to make a notch in the end face plate or the center of the lid surface of the cardboard box close to the adhesive tape, and to break the notch so that the end portion of the adhesive tape is easily held and peeled off. When using the method, the position of the notch is fixed, so the end of the adhesive tape must be positioned accurately, and work must be done carefully. There is a problem that it is difficult to open because it is difficult, and the end of the adhesive tape is cut in a jagged shape, so that it may be cut obliquely at the beginning of peeling and cannot be peeled further. Further, Patent Document 4 proposes a corrugated cardboard box in which an incision for forming an opening piece is provided on the outer flap and the adhesive tape can be peeled off together with the opening piece. However, an adhesive tape made of plastic such as OPP is difficult to cut. Therefore, it is difficult to cut with an opening piece. For this reason, it is necessary to pull the adhesive tape peeled off from the cutting piece and peel it off from the cardboard box. Moreover, since patent document 3 and 4 are the methods of peeling a front liner together when peeling an adhesive tape, there also existed a problem that big force was required when peeling.

  On the other hand, the method of using the adhesive tape having a cut proposed in Patent Document 5 does not require a cutter, but has a problem that a special adhesive tape that has been previously cut is required.

  The present invention has been made paying attention to such problems of the prior art, and it is possible to use a normal adhesive tape without the need for a special adhesive tape, and to use a knife such as a cutter at the time of opening. It can be opened cleanly and easily without removing the surface of the outer flap when it is opened, and there is no need to open the sealed box so that the adhesive tape does not peel off or the flap does not open during transportation. It is an object to provide a method for facilitating, a sealed box suitable for this method, and a sealed box.

A method for facilitating the opening of a sealed box according to the present invention for solving such a problem is as follows.Each edge of the pair of outer flaps constituting the box forms a seam, A method of facilitating the opening of a sealed box by fixing its vicinity and end face plate with an adhesive tape, the edges of a pair of outer flaps of the box containing the contents facing each other, A first step of fixing the outer flaps to each other by attaching an adhesive tape to each of the edge portions, the vicinity thereof, and the end face plate that are opposed to each other, and the adhesive that faces or contacts the joint of the pair of outer flaps A second step of forming one or more cuts or flaws in at least a portion of the tape, the cuts or flaws being applied to the external tape in the adhesive tape when a local force is applied. Is characterized in that comprises a second step that serves as causing a direction of cracks or cuts the edges of the wrap extends, the.
The box of the present invention means that the outer flaps are aligned when the outer flaps connected to the upper and lower edges of the pair of side plates and the inner flaps connected to the upper and lower edges of the pair of end plates are overlapped. A box that forms an eye. The joint of the pair of outer flaps is a portion where the edges of the outer flaps facing each other when the box is sealed, or a portion where the edges of the outer flaps facing each other when the box is sealed contact each other Say. Moreover, the notch which produces a crack or a cut means that the at least one edge part of a notch exists in the part of the adhesive tape which opposes or contacts a seam. If such a notch is applied, the notch is distorted when a force is applied, and even with only one notch, the end of the notch starts to expand along the seam and expands, causing a crack or a break. If the cut becomes so small that the cut is not distorted even when force is applied, it becomes impossible to cause a crack or a cut. However, when a plurality of small cuts are connected like perforations by the applied force, cracks or cuts can be generated. Thus, the size of the cut is not very important for opening. For these reasons, the notch of the present invention includes a plurality of notches and holes formed at intervals that are connected like perforations when a force is applied to the adhesive tape. It may be a fixed one.

  In addition, in the method for facilitating the opening of the sealed box according to the present invention, in addition to the first step and the second step, in the portion of the adhesive tape between each outer flap and the end face plate, A third step of forming one or more cuts or scratches in at least a portion of the adhesive tape in the short direction, the cuts or scratches being generated in the adhesive tape when a local force is applied. And a third step functioning to cause a crack or a cut in the direction in which the edge on the end face plate side of each outer flap extends. The notches include an indeterminate shape other than a straight one, and a plurality of notches and holes formed at intervals that are connected like perforations when a force is applied to the adhesive tape.

Further, according to the method for facilitating the opening of the sealed box according to the present invention, each of the opposing edges of the pair of outer flaps constituting the box forms a seam, and each of these edges and its vicinity and end A box sealed by fixing the face plate with an adhesive tape, wherein a part of each edge of the pair of outer flaps facing each other forms a gap that is separated from each other. A method for facilitating the opening of a sealed box in which at least one edge is partially cut out in advance, wherein the edges of a pair of outer flaps of a box containing contents are opposed to each other, A first step of fixing the outer flaps to each other by attaching an adhesive tape to each of the edges and the vicinity thereof and the end face plate, and one or more cuts or scratches in the gaps in the adhesive tape Forming the second These cuts or scratches function as cracks or cuts in the direction in which the edge of each outer flap extends in the adhesive tape when a local force is applied. And a step.
The gap includes a gap formed in a substantially delta shape or a substantially fan shape in plan view so that the edges are separated from each other as the end face plate is approached, and an edge portion such that the edge portions are separated from each other as the end face plate is approached. Are gaps that are cut out in a substantially staircase shape, gaps that are substantially parallel to each other and whose edges are substantially parallel to each other in plan view, gaps that are elliptical or indefinite in plan view, etc. Including. The notches include an indeterminate shape other than a straight one, and a plurality of notches and holes formed at intervals that are connected like perforations when a force is applied to the adhesive tape.

Further, the sealed box that can be easily opened according to the present invention is such that the edges of the pair of outer flaps of the box containing the contents face each other to form a seam, and each of these opposed edges and the vicinity thereof The adhesive tape is attached to the end plate of the portion and the box, so that the outer flaps are fixed to each other and sealed by this, and the adhesive tape faces or contacts the joint of the pair of outer flaps One or more cuts or scratches are formed in at least a part of the tape, and these cuts or scratches extend from the edge of each outer flap to the adhesive tape when a local force is applied. It is characterized by causing cracks or cuts in the direction.
The notches include an indeterminate shape other than a straight one, and a plurality of notches and holes formed at intervals that are connected like perforations when a force is applied to the adhesive tape.

  Further, in the sealed box that can be easily opened according to the present invention, at least a part of the adhesive tape in the short direction of the adhesive tape is a portion of the adhesive tape between the outer flaps and the end face plate. The above cuts or scratches are formed.

In addition, the sealed box according to the present invention has a pair of outer flaps that face each other so that the edges of the pair of outer flaps face each other, and a seam is formed. Adhesive tape is attached to the adjacent portion and the end plate of the box, so that the outer flaps are fixed to each other and sealed by this, and the end plates at the edges of the pair of outer flaps facing each other A portion of at least one of the edge portions is notched in advance so that the portions adjacent to each other are separated from each other as they approach the end face plate and form a substantially delta-shaped or substantially fan-shaped gap in plan view. A plurality of cuts or scratches are formed in a portion of the adhesive tape that is opposed to the substantially delta-shaped or substantially fan-shaped gap and excluding a region within a range of about 5 mm from the end face plate. This Et of the cut or wound is characterized in the that the adhesive tape along the edges of each outer flap are those causing cracks or breaks when the local force is applied.
The notches include an indeterminate shape other than a straight one, and a plurality of notches and holes formed at intervals that are connected like perforations when a force is applied to the adhesive tape.

Further, in the sealing box that can be easily opened after sealing according to the present invention, the edges of the pair of outer flaps constituting the box can face each other to form a seam. A sealing box that can be sealed by fixing an adjacent portion and an end face plate with an adhesive tape so that a part of each of the opposing edge portions of the pair of outer flaps forms a gap away from each other. A part of at least one of the edges is cut out.
The gap includes a gap formed in a substantially delta shape or a substantially fan shape in plan view so that the edges are separated from each other as the end face plate is approached, and an edge portion such that the edge portions are separated from each other as the end face plate is approached. Are gaps that are cut out in a substantially staircase shape, gaps that are substantially parallel to each other and whose edges are substantially parallel to each other in plan view, gaps that are elliptical or indefinite in plan view, etc. Including.

Furthermore, the sealing box that can be easily opened after sealing according to the present invention can be sealed by fixing the opposing edges of the pair of outer flaps, the vicinity thereof, and the end face plate with an adhesive tape. A sealing box that can be deformed into a hole into which one or a plurality of fingers enter or a hole into which a finger enters in a vicinity of a portion of the pair of outer flaps to which the adhesive tape is attached. (Including a notch) is formed.

In the present invention, since one or more cuts or scratches are formed in at least a part of the adhesive tape facing or contacting the joint of the outer flap of the box sealed with the adhesive tape, the sealed box The user who has received the mark only applies a little force with a nail or the like to the part of the adhesive tape in the joint of the outer flap where the cut or flaw is formed. Begin to stretch along. Or a notch is connected and it expands and a crack or a cut | interruption arises in the said adhesive tape.
Next, when the user moves the fingernail while pushing lightly along the edges of the outer flaps (the joints of the edges of the outer flaps facing each other), the cracks or cuts extend almost entirely. The joining of the edges of the outer flaps with the adhesive tape can be removed. Furthermore, by lifting the edge of each outer flap, the adhesive tape that fixes the outer flap and the end face plate can be cut, and the sealed box can be opened. Therefore, according to the present invention, a special adhesive tape is not required, a normal adhesive tape is used, and a tool such as a cutter is not required at the time of opening. It is possible to open the sealed box cleanly and easily without peeling off.

  Further, in the present invention, when one or more cuts or scratches are formed in the portion of the adhesive tape facing between the outer flaps and the end plate, the user who received the sealed box Can remove the joining of the edges of the outer flaps with the adhesive tape in the same manner as the effect of the invention described above. After that, by lifting each outer flap, the cut or scratch of the adhesive tape between each outer flap and the end face plate is distorted or connected to develop a crack or tear, and the adhesive between the outer flap and the end face plate is increased. Bonding with tape can be removed. The present invention can be opened more easily by forming a cut in the adhesive tape between the outer liner and the end face plate. Therefore, according to the present invention, a special adhesive tape is not required, a normal adhesive tape is used, and a tool such as a cutter is not required at the time of opening. It is possible to open the sealed box cleanly and easily without peeling off.

  Furthermore, in the present invention, a substantially delta-shaped or substantially fan-shaped gap is formed in a plan view so that portions of the pair of outer flaps that are adjacent to the end face plates adjacent to each other are separated from each other as they approach the end face plate. Thus, in the case where each outer flap of the sealing box in which a part of at least one edge in each of the edges is cut out in advance is joined with the adhesive tape, the approximate delta in the adhesive tape One or more cuts or scratches are formed in the part facing the gap or the substantially fan-shaped gap and its periphery, and at a distance of about 5 mm or more from the end face plate, so it is simply easy to open the sealed box In addition, the adhesive tape covering the portion within the range of about 5 mm from the end face plate is not scratched or cut, so the adhesive tape between the outer flap and the end face plate is easily torn. It is possible to prevent the bonding between the outer flap and end plates is impaired, the pressure-sensitive adhesive tape, such as during transportation peeling or flap makes it possible to eliminate the risk or open.

  Further, in the sealing box according to the present invention, in the vicinity of the portion of the pair of outer flaps to which the adhesive tape is attached, a notch (sewing machine) that can be transformed into a hole into which one or a plurality of fingers enter or a hole into which a finger enters When the user who received the sealed box inserts a finger or the like into the hole of the outer flap or presses the notch with a finger or the like to form a hole. The sealed box can be opened very easily by simply putting a finger or the like into it and then hooking the finger to the lower surface of the outer flap to raise the outer flap.

It is a perspective view which shows the cardboard box in Example 1 of this invention. It is a perspective view which shows the cardboard box sealed with the adhesive tape in the present Example 1. FIG. It is a perspective view for demonstrating the notch | incision of the adhesive tape in the present Example 1. FIG. It is a perspective view for demonstrating the position of the notch in Example 2 of this invention. It is a perspective view which shows the instrument which forms the notch | incision by Example 3 of this invention. It is a perspective view which shows the apparatus which forms the cut by Example 4 of this invention. It is a perspective view for demonstrating the apparatus which forms the notch of the present Example 4. It is a perspective view which shows the slit part of the cardboard box in Example 5 of this invention. It is an expanded view of the cardboard box in the present Example 5. It is a perspective view which shows the roller which forms the notch in Example 6 of this invention. It is a perspective view which shows the application example of the roller which forms the notch in the present Example 6. FIG. It is a top view which shows the cardboard box with the U-shaped notch in Example 7 of this invention. It is a top view which shows the cardboard box with the U-shaped perforation-like notch in the present Example 7. FIG. It is a top view which shows the cardboard box with a hole in the inner flap in Example 8 of this invention. It is a perspective view which shows the cardboard box with a hole in the inner flap in the present Example 8. It is sectional drawing of the notch part in the present Example 8. FIG.

  The corrugated cardboard box sealed with the adhesive tape used in the embodiment of the present invention includes, for example, an outer flap 3 connected to upper and lower edges 5 of a pair of side plates 1 and a pair of ends as shown in FIG. A cardboard box that overlaps and seals with inner flaps 4 that are connected to upper and lower edges 5 of the face plate 2, and that faces the outer flap 3 from one end face plate 2 to the other end face plate 2. Is a cardboard box sealed with adhesive tape 7 and sealed as shown in FIG.

The principle of opening the corrugated cardboard box in this embodiment is that the outer flaps that are in the vicinity of the end face plate 2 of the adhesive tape 7 and face each other after the cardboard box is sealed with an adhesive tape that easily tears if there is a cut. The joints at the edges of the edges and the part between the outer flap and the end plate (the adhesive tape of these parts is not sticking to the outer flap or the end plate, or can be easily peeled off when force is applied) A large number of minute slits 9 are formed on the adhesive tape 7), and the adhesive tape 7 is easily torn and opened by using the slits 9 at the time of opening.
Moreover, even if the notch 9 is formed on the adhesive tape that adheres to the outer liner of the cardboard box (paper affixed to the surface of the cardboard box), the notch 9 is fixed to the outer liner, so an external force is applied. However, the adhesive tape 7 does not tear. Therefore, the notch 9 of the adhesive tape 7 adhering to such an outer liner cannot be involved in opening. Note that the notches 9 shown in the drawings of the following examples include notches that are formed only for reasons of convenience in the manufacturing process and are not directly involved in opening the sealed box.

  A typical example of the adhesive tape that can be easily torn if there is a notch is a biaxially stretched polypropylene film (OPP film) made of polypropylene, which is often used for sealing cardboard boxes. is there. However, an adhesive tape using other plastic films, a craft tape using paper, and the like can also be included.

  In addition, the numerical value in each following Example is a numerical value as an example unless there is particular notice, and the invention of this application is not restrict | limited by these numerical values.

  A method for facilitating opening of a sealed cardboard box according to Embodiment 1 of the present invention will be described with reference to FIGS. In FIGS. 1, 2, and 3, 1 is a side plate of a cardboard box (a side plate to which an outer flap 3 described later is connected), and 2 is an end plate of the cardboard box (an inner flap 4 described later is connected to an outer flap). 3 is a side plate which is not connected), 3 is a pair of outer flaps, 4 is a pair of inner flaps, 8 is a joint where the edges of the pair of outer flaps 3 face or contact each other, 7 is a pair of outer flaps 3 It is the adhesive tape affixed on the part (part of said seam 8) which each edge part mutually opposes or contacts, its vicinity part, and an end surface board.

In the first embodiment, as shown in FIG. 3, after the cardboard box is sealed with the adhesive tape 7 with the edges of the pair of outer flaps 3 facing or contacting each other, the outer flap in the adhesive tape 7 is sealed. 3 and the end face plate 2 are opposed to or in contact with each other (portion indicated by B in FIG. 3), and a seam 8 in the adhesive tape 7 (portions where the edges of the pair of outer flaps 3 are opposed to or in contact with each other) A large number of minute notches (notches include flaws) 9 are formed in a portion in a range of about 3 cm close to the end face plate 2 (a portion including a portion indicated by A in FIG. 3).
The portion where the notch 9 is formed is a portion where the adhesive tape is not adhered to the outer flap or the end plate, or a portion which is weakly adhered to the extent that it can be easily peeled off when a force is applied.

  The reason for the range of about 3 cm close to the end face plate 2 is as follows. In other words, opening can be performed if there is one notch 9 that can cause the adhesive tape to tear, but since there are various places to press with the nail, it is necessary to form a large number of notches 9 in a certain range. However, on the other hand, in order to prevent unintentional opening during transportation, the range in which the cut 9 is formed is preferably as narrow as possible. Another reason is that the vicinity of the end face plate is difficult to structurally deform even when a force is applied, so that the adhesive tape is less likely to tear.

  Next, the operation and effect of the first embodiment will be described. The opening method of the sealing with the adhesive tape 7 in Example 1 is as follows. First, the unsealing person pushes the notch 9 of the adhesive tape 7 that is not adhered to the cardboard box, or the periphery of the notch 9 with a fingernail or the like (a tool in place of the nail may be used). As a result, a crack or a cut (the cut and developed in the cut 9) occurs in the pressure-sensitive adhesive tape 7 from the cut 9 that is in the vicinity of the nail or the like. Further, when the nail or the like is further moved, the cracks and cuts are further developed and extended accordingly. Therefore, the substantially central part of the part which fixes a pair of outer flap 3 in the adhesive tape 7 mutually is cut | disconnected along the longitudinal direction of the adhesive tape 7 by this. In addition, the portion of the adhesive tape 7 where the pair of outer flaps 3 and the end face plate 2 face each other or contact each other is similarly cut by putting a nail or the like into the notch 9 as described above.

  The above operation will be specifically described with reference to FIG. When the vicinity of the end face plate 2 of the joint 8 between the outer flaps 3 in the adhesive tape 7 (the portion A in FIG. 3 where the notch 9 is formed) is pushed with a nail or the like, a crack or tear is generated from there. Then, when a nail or the like is inserted into the crack or tear, and the nail or the like is moved in the direction from E to E ′ along the joint 8 between the outer flaps 3, the crack or tear is expanded by the pushing force of the nail or the like. -The part which fixes and fixes the joint 8 of the outer flap 3 in the adhesive tape 7 is cut | disconnected. Next, the part that fixes between the outer flap 3 and the end plate 2 in the adhesive tape 7 (the part where the notch 9 is formed as shown by B in FIG. 3) is also pushed with a nail or the like to generate a crack or tear. Further, when a nail or the like put in the crack / crack is moved along the edge 5 of the end face plate 2, the crack / crack is stretched / developed, and the end face plate 2 and the outer flap 3 in the adhesive tape 7 are expanded. The part which fixes is cut off. Thus, the cardboard box is opened.

  Even when a large number of minute cuts 9 are formed in a part of the adhesive tape 7 near the end face plate 2 as in the first embodiment, the portion near the end face plate 2 is externally attached to the cardboard box. Because it is difficult to deform even if the force of is applied, it will not tear with the force applied during transportation, except for the local force that is pushed with a nail or the like. It is also conceivable that the cardboard box is turned upside down during transportation, and a force is applied to open the outer flap 3 by the weight of the contents. However, even in this case, the weight of the load is distributed over the entire inner flap 4 and outer flap 3, and in the first embodiment, the center portion (end plate) of the joint 8 between the outer flaps 3 to which the most force is applied. Since the notch 9 is not formed in the portion apart from 2), the possibility of opening the outer flap 3 is extremely low.

  Next, a method for forming the slit 9 in the adhesive tape 7 in Example 1 will be described. As shown in a development view 24 of FIG. 9, the cardboard box is formed with a slot (gap) 24 for facilitating folding of the flaps 3 and 4. When the outer flap 3 is folded, the slot 24 creates a gap between the edge of the end face plate 2 and the outer flap 3. Therefore, as shown in FIG. 10, when a large number of needles or minute blades are inserted into the adhesive tape 7 from above, not only the portion on the outer flap 3 in the adhesive tape 7 but also the “ A large number of minute notches 9 can also be formed in a portion facing the “gap between the edge of the end face plate 2 and the outer flap 3” generated by the slot 24.

  Specifically, the formation of the notch 9 in the adhesive tape 7 is performed by rolling a cylinder having a large number of fine needles or fine blades from above on a portion near the end face plate 2 in the adhesive tape 7. Thus, a large number of minute cuts are formed in the portion on the outer flap 3 in the adhesive tape 7 and the portion facing the “gap between the edge of the end face plate 2 and the outer flap 3 generated by the slot 24”. 9 can be formed. In addition to the above, the method of forming the cut 9 in the adhesive tape 7 may be a method of pressing a plate having a large number of thin needles or fine blades such as dry mountains (Kenzan) or cutting with a laser beam or the like. A 9 may be added.

  In addition, even if force is applied to these notches 9 in the state where many fine notches 9 are formed in the portion of the adhesive tape 7 that is bonded to the outer flap 3, the adhesive tape 7 including the notches 9 is not removed. Since the notch 9 is not deformed because it is adhered to the surface of the flap 3, the adhesive tape 7 is not cut by the notch 9. Therefore, in the first embodiment, since it is not necessary to strictly manage the position where the notch 9 is formed, the notch 9 can be formed by a method of rolling a cylinder having many needles or blades as shown in FIG. .

  As described above, according to the first embodiment, the cardboard box can be easily opened with only the fingernail. Further, according to the first embodiment, since the cardboard box can be opened by cutting the adhesive tape 7, a part of the surface of the outer flap 3 is used as in the conventional method of peeling the adhesive tape. There is no inconvenience that the outer liner of the cardboard paper is peeled off together with the adhesive tape and the cardboard box cannot be reused. That is, when the conventional method of peeling and opening the adhesive tape 7 from the surface of the cardboard box is used, the outer liner of the cardboard box is also peeled off together with the adhesive tape, so that the strength is inferior every time the cardboard box is reused. There was a problem. In the first embodiment, for example, a new pressure-sensitive adhesive tape 7 is stacked on the pressure-sensitive adhesive tape 7 cut as described above, and can be sealed again and again. Also, even when the opened cardboard box is recycled, the adhesive tape such as OPP film attached to the cardboard box can be completely removed in the recycling process with the current technology. There is no need to remove the OPP film from the box.

  Next, a second embodiment of the present invention will be described with reference to FIG. In FIG. 4, parts common to those in FIGS. In the second embodiment, unlike the first embodiment (see FIG. 3), the portion of the adhesive tape 7 where the outer flap 3 and the end face plate 2 face each other or contact each other (the portion indicated by B in FIG. 3). A substantially central portion (portion indicated by C in FIG. 4) and a seam 8 within a range of, for example, about 3 cm from the end face plate 2 in the adhesive tape 7 (the portions where the edges of the pair of outer flaps 3 face or contact each other) 4 (see reference A in FIG. 4), a notch 9 is formed. The portion where the notch 9 is formed is a portion where the adhesive tape is not adhered to the outer flap or the end plate, or a portion which is weakly adhered to the extent that it can be easily peeled off when a force is applied.

  That is, in the present Example 2, the peripheral part sentence (part shown by A of FIG. 4) of the corner | angular part 6 of each outer flap 3 in the adhesive tape 7, the corner | angular part 6 of each outer flap 3, and the end surface board 2 are comprised. A large number of minute slits 9 are formed in the opposing gap portion (portion indicated by C in FIG. 4).

  Next, the operation and effect of the second embodiment will be described. In the second embodiment, when the joint 8 (portion A in FIG. 3) between the outer flaps 3 in the adhesive tape 7 is pushed with a nail or the like, a crack or tear is generated from the notch 9 by the pushing force of the nail or the like. Further, when the nail or the like is moved in the direction from E to E ′ along the seam 8 between the outer flaps 3 from that state, the crack / crack expands and develops, and the adhesive tape 7 extends along the seam 8. Disconnected. Further, when one outer flap 3 is pressed from above, a gap is formed between the other outer flap 3. When a finger is put into this gap and pulled upward to lift the outer flap 3, a portion of the adhesive tape 7 facing the periphery of the corner 6 of the outer flap 3 and the gap between the end face plates 2 (in FIG. 3C) The notch 9 shown in FIG. 3 receives a force to generate a crack / crack, and this crack / crack extends along the edge of the outer flap 3 to the end of the adhesive tape 7 (D portion in FIG. 3). Then, the adhesive tape 7 holding the outer flap 3 and the end face plate 2 is cut. The remaining other outer flap 3 is lifted in the same manner as described above to cut the adhesive tape 7. Thereby, a cardboard box can be opened.

  In Example 2, even if a force is applied to open the outer flap 3 due to the weight of the contents while the cardboard box is turned upside down during transportation, the direction perpendicular to the longitudinal direction of the adhesive tape 7 (between FF ′) The direction in which the notch 9 is formed is narrower than that in the first embodiment, and the end portion of the adhesive tape 7 (the portion indicated by D in FIG. 3) where the force is most easily applied and the cutting is easy to start is not performed. Compared to Example 1, there is an advantage that the possibility of being cut from the end portion of the adhesive tape 7 is extremely small.

  Next, an instrument for forming the slit 9 in the adhesive tape 7 in Example 2 will be described as Example 3 of the present invention with reference to FIGS. 4 and 5. The third embodiment includes a plurality of needles 13 for opening, for example, 16 or more notches per square centimeter in the film of the adhesive tape 7, and determines the position with reference to the side plate 1 (see FIG. 1) of the cardboard box. A corner portion 6 of the outer flap 3 and the end face plate 2 in the adhesive tape 7 that seals the cardboard box by having the arm portion 11 and the projection portion 12 for determining the position from the end face plate 2. Is a tool for forming a notch 9 in the gap portion (portion C in FIG. 4) and the portion in the vicinity of the corner portion 6 (portion A in FIG. 4) of the joint 8 between the outer flaps 3. is there.

  In addition, the length of the arm part 11 for determining the position on the basis of the side plate 1 of the cardboard box is variable, and is used by changing to an appropriate length depending on the size of the cardboard box. Further, the number of needles per square centimeter for making the cut 9 is not limited to the above and can be changed as appropriate.

  Next, the operation and effect of the third embodiment will be described. In the case of the second embodiment, as described above, the notch 9 is the gap between the outer flap 3 and the gap portion (the portion C in FIG. 4) where the corner portion 6 of the outer flap 3 and the end face plate 2 face each other. 8 should be formed in the vicinity of the corner 6 (portion A in FIG. 4). If the position of the notch 9 is shifted, it cannot be opened, so it is important that the notch 9 is accurately formed at the above position. Therefore, in the third embodiment, the cut 9 can be accurately formed at the position on the adhesive tape 7 by the protrusion 12 and the arm 11 only by adjusting the length of the arm 11 in advance. . If the cardboard boxes have the same size, the length of the arm portion 11 is constant. Therefore, once the length of the arm portion 11 is determined, the cut 9 can be easily formed at a predetermined position.

  In order to determine the position of the cardboard box sealed with the adhesive tape 7 from the end face plate 2, the projecting portion 12 is brought into contact with the end face plate 2, and then the projecting portion 12 is not separated from the end face plate 2. The entire apparatus is moved so that 11 contacts the side plate 1. Thereby, the instrument which forms the notch 9 can be positioned correctly. Thereafter, the handle 10 is pushed downward as if the stamp is pushed, and a large number of needles 13 are inserted into the adhesive tape 7 to form a large number of minute cuts 9. After the needles 13 are inserted into the adhesive tape 7, the needles 13 are pulled out upward by the restoring action of the spring 15 to return to the original state.

  Next, an apparatus for automatically forming the slits 9 in the adhesive tape 7 in Example 2 will be described as Example 4 of the present invention with reference to FIGS. 6 and 7. As shown in FIGS. 6 and 7, the fourth embodiment has a cylinder 18 provided with a large number of thin needles, a stepping motor 16 for moving the cylinder 18 up and down, and the height of the cardboard box 23. Ultrasonic sensors 20 and 21 for detecting presence or absence are provided. Although not shown in FIGS. 6 and 7, the fourth embodiment includes a computer that processes information from the sensor and sends a signal to the stepping motor 16. Note that the portions 17 where the needles at both ends of the cylinder 18 are not projected have a function of preventing the cylinder 18 from slipping.

  Next, the operation and effect of the fourth embodiment will be described. In this example 4, the cylinder 18 having a large number of thin needles shown in FIG. 5 is rolled on the adhesive tape 7 so as to make a notch 9, and the film of the adhesive tape 7 has 16 or more notches per square centimeter. A plurality of needles for forming the. The position of the cylinder 18 is adjusted in advance so as to roll on the joint 8 between the outer flaps 3 folded together. When the cardboard box 23 is automatically moved in the G to G ′ direction by a belt conveyor or the like, the presence or absence of the cardboard box 23 and its height are detected by the ultrasonic sensor 20, and the information is sent to the computer. Then, the computer controls the stepping motor 16 to lower the cylinder 18 so that the needle is located at a height slightly lower than the upper surface of the cardboard box 23. Then, the computer moves the cardboard box 23 at a predetermined speed, thereby rotating the cylinder 18 on the joint 8 between the outer flaps 3, and the joint 8 between the outer flaps 3 of the adhesive tape 7. A number of minute notches 9 are formed on the substrate.

  When the formation of the notch for the predetermined region or range is completed, the ultrasonic sensor 21 detects this based on the position of the cardboard box 23, and the detection signal is transmitted to the computer. Terminate. That is, when the detection information of the cardboard box 23 is sent from the ultrasonic sensor 21 to the computer, a signal is sent from the computer to the stepping motor 16 and the cylinder 18 is pulled upward.

  Thereafter, when the other cardboard box 23 moves in the G ′ direction from G, the ultrasonic sensor 20 detects the passage of the cardboard box 23, and when the detection information is sent to the computer, the moving speed of the belt conveyor is increased. A signal is sent from the computer to the stepping motor 16 at the considered time, and the cylinder 18 with the needle descends to the height of the cardboard box 23. The cylinder 18 having the needle is rotated by a predetermined length on the adhesive tape 7 of the cardboard box 23 that is moved by the belt conveyor, so that the cut 9 is formed. Thereafter, when the ultrasonic sensor 21 detects the passage of the cardboard box 23, information is sent to the computer, a signal is sent from the computer to the stepping motor 16, and the cylinder 18 with the needle is pulled up. When the sensor 20 detects a new cardboard box 23, the same thing is repeated again.

  In the fourth embodiment, instead of the cylinder 18 having the needle, a plate having a large number of needles as in the third embodiment is lowered and pressed at an appropriate timing by using a signal from the ultrasonic sensor. May be.

  As described above, in the fourth embodiment, the slits 9 can be continuously formed at appropriate positions in the process of sequentially transferring the corrugated cardboard boxes 23 by the belt conveyor. Further, it is possible to cope with the case where the cardboard boxes 23 have different heights.

  Next, a fifth embodiment of the present invention will be described with reference to FIGS. The fifth embodiment relates to an unsealing method when a cardboard box in which a slit is formed in one or both edges of the outer flap 3 (on the side of the end face plate 2 near the joint 8) is used.

  As shown in FIG. 8, the corrugated cardboard box used in the fifth embodiment is adjacent to the end face plate 2 side of the joint 8 of each outer flap 3 (the portion where the edges of each outer flap 3 face each other). A substantially rectangular (substantially linear) slit H extending along the seam 8 at the edge, and a substantially fan-shaped slit I extending in a fan shape (see I in FIG. 8) from the slit H toward the end face plate 2 Are formed continuously. Each of the slits H and I is formed only on the outer flap 3 of the opening surface as shown in the development view of FIG. The substantially rectangular slit H has a width of, for example, 2 mm and a length of, for example, 1.5 cm, and the substantially fan-shaped slit I has a width of, for example, 2 cm and a length of, for example, 1.5 cm.

That is, in the fifth embodiment, the edge portions adjacent to each other on the end face plate 2 side of the pair of outer flaps 3 are separated from each other as they approach the end face plate 2, and the respective edge portions are substantially in plan view. Cut out so as to form a delta-shaped (for example, substantially fan-shaped) gap (see slits H and I). In Example 5, a large number of scratches or cracks are formed on the adhesive tape in a portion facing the substantially delta-shaped (for example, substantially fan-shaped) gap and the periphery thereof, for example, a portion separated from the end face plate by about 5 mm or more. A notch 9 is formed.
The portion where the notch 9 is formed is a portion where the adhesive tape is not adhered to the outer flap or the end plate, or a portion which is weakly adhered to the extent that it can be easily peeled off when a force is applied.

  Next, operations and effects of the fifth embodiment will be described. In the cardboard box, it is better in strength to seal the outer edges of the outer flaps 3 with the opposite edges closely contacting each other without any gaps, because the box is less likely to be deformed by an external force. However, in the method of forming the notch 9 with the needle at the joint of the opposing outer flaps, sealing with an adhesive tape in a state where the opposing edges of the outer flaps 3 are in close contact with each other without gaps, In particular, when the needles and blades for forming the cut are separated from each other, the cut 9 may not be formed at the joint 8 between the outer flaps 3.

  Therefore, in order to solve such a problem, in the fifth embodiment, a range in which the cut 9 in the outer flap 3 is formed (for example, a portion in the vicinity of the end plate 2 and within a range of 3 cm from the end plate 2). ) Is formed along a part of the seam 8 (a part that forms a gap (a substantially delta shape, for example, a substantially fan-shaped gap) between the outer flaps 3 and does not adhere to the adhesive tape 7). Thus, the cut 9 is surely formed. In addition, the slits H and I have an advantage that a place to be pressed with a nail or the like becomes clear for the unsealed person.

  In the fifth embodiment, since the substantially fan-shaped slit I as described above is formed, as shown in FIG. 10, a guide roller 25 and a cylinder 26 having a width of 5 mm that does not have a needle adjacent to the right side in the drawing. Then, an instrument or device in which a cylinder 27 having a needle having a width of 2.5 cm adjacent to the right side of the drawing is combined in order is rolled (rotated) along the edge 5 (see FIG. 8) of the end face plate 2. Thus, only the vicinity of the slits H and I in the adhesive tape 7 (the vicinity of the adhesive tape 7 in the direction substantially orthogonal to the substantially rectangular slit H, the substantially sector-shaped slit I, and their joint 8). (As will be described later, a scratch or cut 9 is not formed in a portion within a range of about 5 mm from the end face plate 2). That is, as shown in FIG. 10, the notch 9 is formed only in “the vicinity of the adhesive tape 7 in the direction substantially orthogonal to the substantially rectangular slit H, the substantially sector-shaped slit I, and the joint 8 thereof”. , “A part of the adhesive tape 7 close to the end face plate 2 (a part within a range of about 5 mm from the end face plate 2)” is not formed. Thus, in this Example 5, by not forming the notch 9 in the “part close to the end face plate 2 in the adhesive tape 7 (part within the range of about 5 mm from the end face plate 2)”, It is possible to keep the bonding between the respective outer flaps 3 and the end face plate 2 by the adhesive tape 7 strong (that is, the adhesive tape covering a portion within a range of about 5 mm from the end face plate 2 is scratched or cut. By not forming 9, the adhesive tape 7 can be easily torn so that the joint between each outer flap 3 and the end face plate 2 is not impaired. This is an advantage of the fifth embodiment in comparison with the respective embodiments shown in FIG.

  In the corrugated cardboard box unsealing method according to the fifth embodiment, first, the slit portion (H portion in FIG. 8) in which the cut 9 is formed is pushed with a nail or the like, and the adhesive tape 7 is cracked or cut into the slit portion H. Then, when the nail or the like put in the crack / cut of the slit portion H is moved in the direction from E to E ′ along the joint 8 between the outer flaps 3, the force that the crack / cut pushes the nail or the like As a result, the adhesive tape 7 is cut along the seam 8.

Next, one of the two outer flaps 3 is pressed from above. As a result, a gap is formed between the other outer flap 3 and when the finger is put in the gap and the other outer flap 3 is pulled upward to lift the substantially rectangular slit in the adhesive tape 7. The cracks and cuts in the portion H extend and propagate to the portion D in FIG. 8 along the edge of the device flap 3 that forms the substantially fan-shaped slit I. As a result, the adhesive tape 7 that has joined the outer flap 3 and the end face plate 2 is cut along the edge 5 of the end face plate 2. As for the other outer flap 3 that remains, when the opener lifts it, the adhesive tape 7 is cut as described above. As a result, the cardboard box is opened.
In addition, since each slit H and I in this Example 5 is for forming a clearance gap in the joint 8 of each outer flap 3, both of a pair of outer flaps like the said Example 5 are mentioned. Instead of forming the slits H and I, the slits H and I are formed only in either one of the pair of outer flaps 3 (in this case, the slit I has a half fan shape) The same effect as described above can be achieved. Further, the slit I may be replaced with a substantially sector shape as shown in the figure, and for example, each edge having a substantially convex shape in plan view may be spread in a substantially stepped shape.

  Next, a roller device for forming a slit 9 in an adhesive tape of a sealed corrugated cardboard box having the slit of Example 5 will be described as Example 6 of the present invention with reference to FIGS. As shown in FIG. 10, the roller device of Example 6 is an instrument in which a guide roller 25, a cylinder 26 having a width of 1 cm not having a needle, and a cylinder 27 having a width of 4 cm having a needle are sequentially combined.

  Next, the operation and effect of the sixth embodiment will be described. By rolling the guide roller 25 of the sixth embodiment along the edge 5 of the end surface plate 2 while abutting the end roller 2 of the corrugated cardboard box of the fifth embodiment, each outer flap 3 in the adhesive tape 7 and A slit (part H in FIG. 8) and a sector in the adhesive tape 7 do not form a cut in a part facing the gap between the end plate 2 (the part not shown in FIG. 8D, which is not bonded). The notch 9 can be formed only in the portion facing the portion (I portion in FIG. 8). Thus, when the roller device of Example 6 is used, the ease of opening is the same as that of Example 2, but a cardboard box that can be easily opened can be created without using a special device.

  Since there is no notch 9 in the end portion (part D in FIG. 8) of the adhesive tape 7 where the force is most easily applied and the cutting is likely to start, there is no possibility of being cut from this portion. Therefore, even if the cardboard box is turned upside down during transportation and a force is applied to open the outer flap 3 by the weight of the contents, the cardboard box is not opened.

  As shown in FIG. 11, a plurality of rollers (FIG. 10) of the sixth embodiment are arranged, and the guide roller of one of the rollers 29 is an end plate of a cardboard box in which the belt conveyer moves from J to J ′ in the belt conveyor. You may comprise so that it may move along 2.

  The cardboard box of Example 5 sealed with the adhesive tape 7 is moved in the J to J ′ direction by a belt conveyor (without using the ultrasonic sensors 20 and 21 and the motor 16 as in Example 4) to form the cut 9. can do. Further, the roller 30 that is not near the end face does not damage the adhesive tape 7 of the cardboard box with a needle because the guide roller 25 rides on the outer flap 3 of the cardboard box. For this reason, in this apparatus, the notch 9 can be formed even if cardboard boxes having different lengths in the longitudinal direction are mixed. According to the sixth embodiment, by combining with the fifth embodiment, a cardboard box having the same effect as that of the second embodiment can be easily manufactured without requiring a special device.

  A sealing box that facilitates opening of a cardboard box according to Embodiment 7 of the present invention will be described with reference to FIGS. 4, 12, and 13. The present Example 7 is located in a place located in a direction away from the joint 8 by a little distance from the adhesive tape 7 facing the gap between the outer flap 3 and the end face plate 2 in the outer flap 3 than the finger. A slightly larger U-shaped cut 31 or a cut perforated in the shape of a perforation 32 is formed, and the cut 9 of Example 1 or the like is put into the adhesive tape 7 of such a cardboard box.

  FIG. 12 is a plan view of a cardboard box according to the seventh embodiment. As shown in FIG. 12, in the present Example 7, the U-shaped cut 31 that is slightly larger than the finger is separated from the edge near the end face plate 2 of the outer flap 3 by about 30 mm. It is formed toward the angular direction. Further, as shown in FIG. 13, a cut 32 by perforations may be formed instead of the cut 31 of FIG. In addition, it is desirable to previously form the notch 31 or the notch 32 by the perforation as described above in each flap 3 of the cardboard box before applying the adhesive tape 7.

  Next, functions and effects of the seventh embodiment will be described. When opening the cardboard box according to the seventh embodiment, first, the U-shaped cuts 31 and 32 formed in the outer flap 3 are pushed from above with fingers or the like. Then, as the cuts 31 and 32 of the outer flap 3 are pushed into the cardboard box, the inner flap 4 is also lowered, and a hole to the extent that a finger or the like enters the outer flap 3 is opened. A finger or the like is put in this hole, and the outer flap 3 is lifted up by lifting the finger or the like. Then, this force is the portion indicated by D in FIG. 4 in the adhesive tape 7 that fastens the outer flap 3 and the end face plate 2 (the adhesive tape 7 facing the gap between each outer flap 3 and the end face plate 2. A crack / cut occurs from the notch 9 in that part (the part indicated by D in FIG. 4 in the adhesive tape 7), and the crack / cut extends and propagates. Thus, the adhesive tape 7 is cut along the boundary between the end face plate 2 and the outer flap 3. Further, since the crack / cut extends along the edge of the outer flap, the entire outer flap can be finally opened.

  As described above, in Example 7, when the adhesive tape 7 starts to be cut, the end of the adhesive tape 7 facing the gap between the outer flap 3 and the end face plate 2 in the horizontal direction in FIG. 12 (FIG. 4). 4), it is indispensable to form the notch 9 in the portion indicated by D in FIG. 4. However, it is easier to open the notch 9 in the other portions if it is present. Yes, but not essential.

  According to the seventh embodiment, a hole is made in the outer flap 3, a finger is put in the outer flap 3, and the outer flap 3 is pulled up to open the nail, as in the first, second, or fifth embodiment. Since it does not have to be used, the opening method is easy to understand, and the opening operation itself can be cleaned.

  Moreover, since the U-shaped cut 31 formed in the outer flap 3 can be pushed over the weight from above, even a weak woman can easily make a hole. Furthermore, when the perforated cut 32 shown in FIG. 13 is used instead of the cut 31 shown in FIG. 12, the possibility that a hole is opened in the outer flap 3 due to the force applied during transportation is reduced. Furthermore, even if a hole is opened during transportation, the contents do not leak through the hole because of the inner flap 4. Other effects are the same as those of the first embodiment.

  Next, an eighth embodiment of the present invention will be described with reference to FIGS. In the eighth embodiment, in addition to the configuration of the seventh embodiment (forming a substantially U-shaped cut 31 or 32 in the outer flap 3), the outer flap 3 has a cut 31 or 32 in the inner flap 4. The present invention relates to facilitation of opening in the case of using a cardboard box in which a hole 33 having a size equal to or larger than the notch 31 or 32 is formed in an opposing position.

  FIG. 14 is a plan view of a cardboard box used in the eighth embodiment as viewed from above. This is a cardboard box in which the same notch 31 or 32 as in Example 7 is formed in the outer flap 3 and the inner flap 4 is formed with a larger hole 33. FIG. 15 is a three-dimensional view of the eighth embodiment, showing a state in which one outer flap 3 is opened. FIG. 16 is a sectional view taken along the line KK ′ of FIG. 14 and shows a state in which the cut 31 of the outer flap 3 is pushed into the hole 33 of the inner flap 4.

  Next, the operation and effect of the opening ease method using the cardboard box according to the eighth embodiment will be described. If there is not much space between the contents 34 in the cardboard box and the inner flap 4, the inner flap 4 does not fall into the cardboard box even if the notch 31 or 32 formed in the outer flap 3 of Example 7 is pressed. Therefore, even if the outer flap 3 31 or 32 of the seventh embodiment is formed, even if the notch 31 or 32 of the outer flap 3 is pushed with a finger or the like, a hole enough to pass the finger through the outer flap 3 may not be formed. is there. Therefore, in the eighth embodiment, the hole 33 is formed in the inner flap 4 at a position facing the notch 31 or 32 formed in the outer flap 3 of the seventh embodiment. Therefore, according to the eighth embodiment, when the notch 31 or 32 of the outer flap 3 is pushed with a finger or the like, it can be lowered to at least the position of the inner flap 4 as shown in FIG. Therefore, according to the eighth embodiment, if there is some space between the contents 34 and the inner flap 4, the inner flap 4 is slightly lowered, and the outer flap 3 can be pulled up with a finger or the like. .

DESCRIPTION OF SYMBOLS 1 Side plate 2 End surface plate 3 Outer flap 4 Inner flap 5 Edge 6 Outer flap corner 7 Adhesive tape 8 Joint between outer flaps 9 Notches (including scratches) formed in the adhesive tape
DESCRIPTION OF SYMBOLS 10 Handle of instrument or apparatus which forms incision 11 Arm part 12 Projection part 13 Needle 14 Hole of instrument which forms incision 15 Spring 16 Stepping motor 17 Roller part without needle 18 Roller part 19 with needle 19 Spring 20, 21 Ultrasonic sensor 22 Roller support 23 Cardboard box 24 Slot 25 Guide roller 26 Cylinder without needle 27 Cylindrical portion with needle 28 Spring 29 Roller positioned on end plate 30 Roller not positioned on end plate 31 Substantially U-shaped Notch 32 U-shaped perforated notch 33 Inner flap hole 34 Contents of cardboard box A Part of notch of outer flap with notch B Part between outer flap and end plate C Periphery of outer flap corner Part D between the end face plate and the part between the outer flap and the end face plate, the end part of the adhesive tape E → E 'Direction to move the claw FF' Range to move the claw GG 'Direction to move the cardboard box H Roughly rectangular (substantially straight) slit I Substantially fan-shaped slit JJ' Direction to move the cardboard box

The present invention has been made paying attention to such problems of the prior art, and can be opened while using an adhesive tape based on a normal film without requiring a special adhesive tape. Sometimes it does not require a cutter such as a cutter, and it can be easily opened cleanly without peeling off the surface of the outer flap when opening, and the adhesive tape may be peeled off or the flap may be opened during transportation It is an object of the present invention to provide a non- sealing box, a sealed box that is easy to open, and a method and an instrument that facilitate opening of the sealed box .

In the sealing box according to the present invention for solving such a problem, the opposing edges of the pair of outer flaps constituting the box form a seam, and each of these edges and its vicinity and end A sealing box that can be sealed by fixing the face plate with a film-based adhesive tape, and the outer flaps fixed to each other by the adhesive tape upward from the lower surface thereof By pressing with a finger, the outer flaps of each of the outer flaps are formed in the "parts facing the gaps between the outer flaps of the adhesive tape or the gaps between the outer flaps and the end face plate and having been previously cut." In order to facilitate the opening of the box by causing cracks or cuts in the direction in which the edges extend, a hole for entering one finger into each outer flap or a cut for forming this hole (a cut made of perforations) The No.) It is characterized in that is formed.
The box of the present invention means that the outer flaps are aligned when the outer flaps connected to the upper and lower edges of the pair of side plates and the inner flaps connected to the upper and lower edges of the pair of end plates are overlapped. A box that forms an eye. The joint of the pair of outer flaps is a portion where the edges of the outer flaps facing each other when the box is sealed, or a portion where the edges of the outer flaps facing each other when the box is sealed contact each other Say. Moreover, the notch which produces a crack or a cut means that the at least one edge part of a notch exists in the part of the adhesive tape which opposes or contacts a seam. If such a notch is applied, the notch is distorted when a force is applied, and even with only one notch, the end of the notch starts to expand along the seam and expands, causing a crack or a break. If the cut becomes so small that the cut is not distorted even when force is applied, it becomes impossible to cause a crack or a cut. However, when a plurality of small cuts are connected like perforations by the applied force, cracks or cuts can be generated. Thus, the size of the cut is not very important for opening. For these reasons, the notch of the present invention includes a plurality of notches and holes formed at intervals that are connected like perforations when a force is applied to the adhesive tape. It may be a fixed one.

Further, according to the present invention, a sealed box that can be easily opened has a pair of outer edges of a pair of outer flaps that form the box, forming a seam, and each of these edges, its vicinity, and an end plate are films. A portion of the pressure-sensitive adhesive tape that is sealed by being fixed with a pressure-sensitive adhesive tape having a base material as opposed to or in contact with a portion near the end face plate of the pair of outer flaps (see FIG. 3). Only the portion indicated by A) is formed with one or more cuts or scratches that trigger opening, and these cuts or scratches are formed on the adhesive tape when the edge is applied to the adhesive tape. It is characterized by causing cracks or cuts in the extending direction.

Further, the sealed box according to the present invention can be easily opened in each corner of the outer flap sandwiched between the edge of the outer flap on the joint side and the edge of the outer flap on the end face plate side. One or more cuts or scratches that trigger the opening of only the portion of the adhesive tape (portion indicated by C in FIG. 4) that faces between the portion and the outer flap and the end face plate in the vicinity thereof These cuts or scratches may cause cracks or cuts in the direction in which each edge extends in the adhesive tape when a local force is applied.
It should be noted that the part that forms one or more cuts or scratches that trigger the opening is not the part of FIG. 3A (the same part as FIG. 4A) plus the part corresponding to claim 2 and the part of FIG. 4C. In this sense, the word “only” is used.

Further, according to the present invention, a sealed box that can be easily opened has a pair of outer edges of a pair of outer flaps that form the box, forming a seam, and each of these edges, its vicinity, and an end plate are films. The box is sealed by being fixed with an adhesive tape having a base material, and a portion of the pair of outer flaps adjacent to the end face plates facing each other is separated from each other as the end face plate is approached. In addition, a part of at least one of the edges is cut out in advance so as to form a substantially delta-shaped or substantially fan-shaped gap in plan view, and the substantially delta-shaped in the adhesive tape. Alternatively, a plurality of cuts or scratches are formed in a portion facing the substantially fan-shaped gap and excluding an area within a range of 5 mm from the end face plate, and local forces are applied to these cuts or scratches. Said adhesive when done It is characterized in that the in-loop along the edge of each outer flap are those causing cracks or breaks.

Further, according to the method for facilitating the opening of the sealed box according to the present invention, each of the opposing edges of the pair of outer flaps constituting the box forms a seam, and each of these edges and its vicinity and end A method of facilitating opening of a sealed box by fixing a face plate with a film-based adhesive tape, the edges of a pair of outer flaps of the box facing each other, and facing each other A first step of fixing each of the outer flaps and between the outer flaps and the end plate by sticking the adhesive tape to each edge, the vicinity thereof, and the end plate, and forming a cut or scratch in the adhesive tape The pair of outer flaps is moved by moving a device or a device for performing over the portion near the end face plate of the joint between the outer flaps in a direction substantially perpendicular to the longitudinal direction of the joint. A second step of forming one or more incisions or scratches that trigger opening in only the portion of the adhesive tape facing or in contact with the portion near the end plate of the seam, A second step that functions as a crack or cut in the direction in which the edge of each outer flap extends in the adhesive tape when a local force is applied. is there.

Further, according to the method for facilitating the opening of the sealed box according to the present invention, each of the opposing edges of the pair of outer flaps constituting the box forms a seam, and each of these edges and its vicinity and end A method of facilitating opening of a sealed box by fixing a face plate with a film-based adhesive tape, the edges of a pair of outer flaps of the box facing each other, and facing each other A first step of fixing each of the outer flaps and between the outer flaps and the end face plates by sticking the adhesive tape to each edge, the vicinity thereof, and the end face plates; and a joint side of each outer flap A portion of the adhesive tape that faces each corner portion of the outer flap sandwiched between the edge portion and the edge portion on the end face plate side of each outer flap and the periphery thereof, facing the joint portion of the outer flaps ( FIG. And only the portion of the adhesive tape (the portion indicated by C in FIG. 4) that faces the corner portion and its periphery, and is opposed to the outer flap and the end face plate. A second step of forming one or more incisions or scratches that trigger the opening, and these incisions or scratches are formed in the adhesive tape in the adhesive tape when a local force is applied. It is characterized by including a second step that functions as a crack or a cut in the direction in which each edge extends.

Further, according to the method for facilitating the opening of the sealed box according to the present invention, each of the opposing edges of the pair of outer flaps constituting the box forms a seam, and each of these edges and its vicinity and end A method of facilitating the opening of a sealed box by fixing the face plate with a film-based adhesive tape, wherein each of the outer flaps is adjacent to the end face plate at the edge of the joint Is a sealed box in which the portion is cut out in advance so as to form a substantially delta-shaped or substantially fan-shaped gap in plan view so as to be separated from each other as it approaches the end face plate, and a pair of outer flaps of the box The edge portions of the outer flaps are opposed to each other, and the adhesive tape is attached to each of the edge portions opposed to each other, the vicinity thereof, and the end face plate to fix the outer flaps and the outer flaps and the end face plates to each other. 1 By moving a tape and a device or instrument for forming a cut or scratch in the adhesive tape, the gap in the adhesive tape is moved in a direction substantially perpendicular to the longitudinal direction of the seam. A second step of forming a plurality of cuts or scratches that trigger opening in a portion that is opposed to a substantially delta-shaped or substantially fan-shaped gap and that excludes a region within a range of 5 mm from the end face plate, When a local force is applied, the cut or scratch of the adhesive tape is guided to the edge of the gap, and causes a crack or cut extending substantially parallel to the edge of the outer flap facing the end plate. And a second step functioning as a function to be performed.

Furthermore, in the instrument for forming a notch or the like for facilitating the opening of the sealed box according to the present invention, each edge of the pair of outer flaps constituting the box forms a seam, and each of these edges and An instrument having a roller and a guide roller for forming a slit or a scratch on the adhesive tape with respect to a box in which a vicinity portion and an end face plate are fixed with an adhesive tape based on a film, the guide roller By moving the portion of the adhesive tape near the end face plate of the joint between the outer flaps in a direction substantially perpendicular to the longitudinal direction of the joint. One or more cuts or scratches that trigger opening are formed in the portion of the adhesive tape that faces or contacts the portion close to the end face plate.

Further, in the sealing box according to the present invention, in the vicinity of the portion to which the adhesive tape of the pair of outer flaps is attached, a notch that can be deformed into a hole into which one finger enters or a hole into which a finger enters (notch by perforation The user who received the sealed box puts a finger or the like into the hole of the outer flap, or presses the notch with a finger or the like to form a hole therein. It is possible to open the sealed box very easily by simply inserting a finger or the like and then performing an operation such as hooking the finger to the lower surface of the outer flap and pulling up the outer flap.

Further, according to the present invention, a sealed box that can be easily opened has a pair of outer edges of a pair of outer flaps that form the box, forming a seam, and each of these edges, its vicinity, and an end plate are films. Is a box sealed by being fixed with an adhesive tape having a base material as a base material, and in a portion facing a joint between each outer flap in the adhesive tape, a joint of the pair of outer flaps Only one portion of the adhesive tape (portion indicated by A in FIG. 3) facing or contacting a portion close to the end face plate is formed with one or more cuts or scratches that trigger opening, and these cuts or scratches Is characterized in that when a local force is applied, the adhesive tape causes a crack or a cut in the direction in which the edge extends.

Further, the sealed box according to the present invention, which is easy to open , is a portion facing the gap between each outer flap and the end face plate in the adhesive tape, and an edge on the joint side of each outer flap. wherein in said pressure-sensitive adhesive tape portions (FIG. 4 facing the gap between the outer flaps and the end face plate of each corner portion and around the outer flap sandwiched between the edge of the end face plate side of the outer flap only partially) shown in C, and is formed with one or more notches or scratches that triggers the opening, these notches or scratches, each outer flap to said adhesive tape when local force is applied A crack or a cut in the direction in which the edge on the end face plate side extends may be generated.
It should be noted that the part that forms one or more cuts or scratches that trigger the opening is not the part of FIG. 3A (the same part as FIG. 4A) plus the part corresponding to claim 2 and the part of FIG. 4C. In this sense, the word “only” is used.

Claims (8)

The opposing edges of the pair of outer flaps that make up the box form a seam, and the edges, the vicinity thereof, and the end face plate are fixed with adhesive tape for easy opening of the sealed box A method of
The edges of the pair of outer flaps of the box containing the contents are opposed to each other, and the outer flaps are fixed to each other by attaching an adhesive tape to each of the opposed edges, the vicinity thereof, and the end face plate. The first step;
A second step of forming one or more cuts or flaws in at least a part of the adhesive tape facing or contacting the joints of the pair of outer flaps, the cuts or flaws being a local force A second step that functions as a crack or cut in the direction in which the edge of each outer flap extends into the adhesive tape when
A method for facilitating the opening of a sealed box, comprising: In claim 1, in addition to the first step and the second step, at a part of the adhesive tape between the outer flaps and the end face plate, at least in a short direction of the adhesive tape, A third step of forming one or more cuts or flaws, wherein the cuts or flaws are such that the edge on the end plate side of each outer flap is in the adhesive tape when a local force is applied. A third step which functions as a crack or cut in the extending direction;
A method for facilitating the opening of a sealed box, comprising: Each of the opposing edges of the pair of outer flaps constituting the box forms a seam, and each of these edges and its vicinity and the end face plate are sealed by fixing with an adhesive tape,
A sealing box in which a part of at least one of the edges of the pair of outer flaps is notched in advance so that a part of each of the edges of the pair of outer flaps facing each other forms a gap. A method for facilitating opening,
The edges of the pair of outer flaps of the box containing the contents are opposed to each other, and the outer flaps are fixed to each other by attaching an adhesive tape to each of the opposed edges, the vicinity thereof, and the end face plate. A first step and a second step of forming one or more cuts or scratches in the gap portion of the adhesive tape, the cuts or scratches being applied to the adhesive when a local force is applied. A second step functioning to cause the tape to crack or break in the direction in which the edge of each outer flap extends;
A method for facilitating the opening of a sealed box, comprising: The edges of a pair of outer flaps of the box containing the contents are opposed to each other to form a joint, and adhesive tape is attached to each edge facing each other and its vicinity and the end face plate of the box, Each outer flap is fixed to each other and sealed by this,
One or more cuts or scratches are formed in at least a part of the adhesive tape facing or contacting the joints of the pair of outer flaps, and local forces are applied to these cuts or scratches. A sealed box that is easy to open, characterized in that the adhesive tape sometimes causes cracks or cuts in the direction in which the edge of each outer flap extends.   In Claim 4, the part of the said adhesive tape between each said outer flap and the said end surface board WHEREIN: One or more cut | notch or flaw is formed also in at least one part of the transversal direction of the said adhesive tape. A sealed box that is easy to open. Edges of a pair of outer flaps of the box containing the contents are opposed to each other to form a seam, and adhesive tape is attached to each of the opposed edges and the vicinity thereof and the end plate of the box The outer flaps are fixed to each other and sealed by this,
The respective edges of the pair of outer flaps that are adjacent to the end face plates facing each other are separated from each other as they approach the end face plate and form a substantially delta-shaped or fan-shaped gap in plan view. A part of at least one edge in the part is notched in advance,
A plurality of cuts or flaws are formed in a part of the adhesive tape that is opposed to the substantially delta-shaped or substantially fan-shaped gap and excluding a region within a range of about 5 mm from the end face plate. Or a scratch is a sealed box that is easy to open, characterized by causing the adhesive tape to crack or break along the edge of each outer flap when a local force is applied. .   Edges of a pair of outer flaps that make up the box can face each other to form a seam. Sealing can be done by fixing the opposite edges, their neighboring parts and the end plate with adhesive tape. And a part of at least one of the edges is notched so that a part of each of the facing edges of the pair of outer flaps is separated from each other. Sealing box, characterized in that it is.   A box for sealing that can be sealed by fixing an opposing edge part of the pair of outer flaps constituting the box, its vicinity, and an end face plate with an adhesive tape, the adhesive of the pair of outer flaps A seal that is characterized in that a hole into which one or a plurality of fingers enter or a notch that can be deformed into a hole into which a finger enters (including a perforation notch) is formed in the vicinity of the part to which the tape is applied. Box.

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