JP2008105693A - Packaging box, and package structure using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a packaging box which sufficiently prevents an unexpected opening of a door member in a circulation stage from occurring after eliminating the need for the pasting of a subsidiary material such as an adhesive seal material, and in addition, effectively prevents the remaining of a small amount of an article to be packaged in a packaging bag from occurring, and also to provide a package structure. <P>SOLUTION: On the upper end section of one side wall 1 of a box body 6, the door member 7 which rocks within the horizontal plane on the side wall edge is installed in a manner to project to an adjacent side wall side from the side wall. At the same time, the adjacent side wall is arranged to be overlapped on the external side of the door member, and an excision region 8 being extended to the overlapped section of the adjacent side wall with the door member and to a section corresponding to the distal end side section of the door member is installed. In the meantime, a cutting remnant region 9a of a protruding section 9 which is partially engaged with the external surface of the door member is installed on the adjacent side wall. Then, at a counter section of the side wall edge which becomes the rocking fulcrum of the door member, an ex post type tearing region 11 is installed on the upper end section of the one side wall. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  This invention contains a packaging box made of paper or plastic, in particular, a soft packaging bag with a non-return dispensing nozzle that fills and packs liquids, liquids, etc. Facilitates multiple times of unpacking work from the non-pouring nozzle, and also makes it easy to store the check pour nozzle of the packaging bag into the box after the pouring is finished. The present invention relates to a packaging box and a packaging structure using the packaging box, which can ensure and effectively prevent the packaged item from remaining in the packaging bag.

Various box cartons such as milk packs and fruit juice packs are widely used as box-like containers used for pouring filled and packaged liquid packages multiple times.
The paper carton is used as a packaging container for a packaged object having a volume of about 100 to 3000 ml, for example, and is easier to handle than glass bottles, plastic bottles, cans, etc. There is an advantage that the floor area efficiency is higher than various bottles, cans and the like having a circular outer contour shape.

  However, in the production of this type of paper carton that directly fills and packages the packaged goods, it is essential to use 100% virgin parb and there is a problem that waste paper cannot be used. When opening a paper carton that has a roof shape on the top, in addition to having the trouble of having to peel off the fusion-bonded portion of the resin material at the top of the roof shape with your fingers, open it properly. There is often a problem that it cannot be performed, and further, it is impossible to sufficiently close the opening once opened.

  On the other hand, the brick-type paper carton with a flat top part is still troublesome at the time of opening the fused end part bent to the side wall side with scissors, but the opening as expected by the cutting is still possible. It is possible to reliably perform the process, and it is possible to close the opened opening by bending the fusion-bonded portion at the top toward the side wall.

  However, in this brick type paper carton, in many cases, the filling height of the package and the opening height are quite close, so that the package is not intended especially for the first dispensing. There was a problem that there was a high possibility of flowing down in the direction.

  For this reason, as a problem to solve such problems of conventional paper carton, especially in a packaging structure, a soft packaging bag that exhibits a filling and packaging function, and a packaging that imparts regularity and the like thereto By separating the function from the box, it is possible to manufacture the box with waste paper, and to remove the inconvenience of opening the box, making it easy and reliable opening as expected. In addition, Patent Document 1 discloses a packaging box and a packaging structure using the packaging box that make it possible to ensure sufficient closure of the opened opening and, in addition, to easily specify the outflow direction of the package. Has been.

  The packaging box of Patent Document 1 is a hexahedron-shaped box made of paper or plastic, and swings in the horizontal plane with the corner of the side wall as a fulcrum at the upper end of one side wall. A door member that fits into an opening provided in the portion is provided, a protrusion that engages with the outer surface of the door member is provided, and a side wall that opposes the one side wall projects from the top wall to the inside of the box. A tongue piece is provided, and the tongue piece has such a length that the tip of the tongue piece comes into contact with the inner surface of one side wall in a downward posture, for example, at a position below the protrusion.

In this packaging box, at the upper end of one side wall of a paper or plastic box, the door member is horizontally oscillated and displaced so that it is separated from the opening at the upper end of the side wall, The side wall opening can be opened and closed between, for example, a closed position where the door member just fits. At the closed position of the door member, the door member and By engaging the engaging protrusion with the outer surface of the door member by elastic deformation of at least one of the engaging protrusions on the side wall side, the door member can be reliably restrained at the closed position.
On the other hand, the door member is opened by pressing and deforming a portion of the side wall in the vicinity of the hooking protrusion with a finger, and elastically deforming at least one of the protrusion and the door member, to the inside of the door of the protrusion. And then the door member can be opened by placing a finger on it.

  Therefore, according to this, opening of the door member, and hence opening of the box body can be easily performed as expected without using any tools, and the opening of the door member can be reliably closed. Can be done.

  In addition, the packaging box functions to assist in the tilting and pouring operation of the soft packaging bag that is filled and packaged and stored in the package, and that provides tiltability. Since the packaging material is not directly filled and packaged, waste paper can be used for the box.

Furthermore, in this packaging box, since the non-return dispensing nozzle of the packaging bag is joined to the inner surface side of the door member, it is always possible to easily identify the outflow direction of the package from the opening provided in the nozzle. It is possible to reliably flow down the package to the intended position regardless of the amount of the package.
JP 2006-160298 A

  This invention is obtained by further improving the invention described in Patent Document 1, and in the above invention, an opening that allows the door member to swing and open is formed in one side wall of the packaging box in advance. In order to prevent unintentional swinging of the door member during the product distribution process until the product stored in the packaging box reaches the end user's hand. The adhesive member that restrains the door member to the side wall and closes the opening needs to be adhered from the outer surface of the door member to the outer surface of the side wall. In addition, it is possible to reduce the number of steps for manufacturing the packaging structure and to prevent the packaging structure from being accidentally opened. Enables cost reduction and soft wrapping in the packaging box In a packaging structure containing a bag, when the packaged material packed and packaged in the flexible packaging bag is airlessly poured without taking outside air into the packaging bag, the packaged product is packed in the packaging bag. The present invention provides a packaging box capable of effectively preventing residue of a product and a packaging structure using the same.

  The packaging box according to the present invention is a paper or plastic box having a hexahedron shape, and protrudes from the side wall to the adjacent side wall at the upper end of one side wall. A door member that swings inside is provided, and adjacent side walls are disposed so as to overlap the outside of the door member, and the adjacent side wall overlaps with the door member and corresponds to the front end side portion of the door member. While providing a cut-out area that has been machined to facilitate cutting, the adjacent side wall is partially engaged with the outer surface of the door member to restrain the unexpected opening displacement of the door member. An uncut area is provided, and a subsequent tear area is provided at the upper end of one or two side walls at the diagonal portion of the side wall edge that serves as a swing fulcrum of the door member.

Here, it is preferable that the excision area is an area surrounding the adjacent side wall of the adjacent side wall to the one side wall and a cutting guide rod made of perforated holes or the like.
By the way, although the said tear area can be formed over two side walls, it is preferable to divide | segment by the tear induction rod, for example, perforation of the perforation etc. which were formed only in the side wall facing the said adjacent side wall.
Moreover, it is preferable that a door member is thickened at least at the front-end | tip part.

  More preferably, in such a packaging box, a constraining piece that protrudes from the top side of the side wall that faces the adjacent side wall, is bent inside the box, and can be contacted on the lower surface of the packaging bag stored in the box is provided. The restraint piece has a protruding length at which the front end engages with the inner surface of the adjacent side wall in a downward posture. In this case, more preferably, the constraining piece has a protruding length that engages within 10 mm above and below it, including the lowermost edge position of the excision area on the inner surface of the adjacent side wall.

  Also preferably, at least one packaging bag joint, for example, hot melt or other gluing joint, for positioning and holding the packaging bag, which will be described later, on the inner surface of the door member and two side walls sequentially adjacent to the fulcrum side thereof Provide a part.

  A packaging structure according to the present invention uses any of the packaging boxes described above, which includes a restraining piece, and includes a flat non-return dispensing nozzle with a sealed tip, and an upper end of a soft packaging bag body. The upper end edge on the other side of the packaging bag body is provided on the part in a projecting attitude toward one of the sides, integrally with the packaging bag body or fused and bonded thereto. A packaging bag having a tear guide rod at the part is stored in a packaging box, and the upper end of the packaging bag is attached to the inner surfaces of two adjacent side walls at a plurality of locations, and a check dispensing nozzle is installed. The opening position is attached to the inner surface side of the door member so that the opening position protrudes forward from the front edge of the door member, and the restraining piece is bent to the inside of the box.

Here, preferably, the base portion of the non-return dispensing nozzle or the front end side portion thereof is positioned in correspondence with the swing fulcrum of the door member.
And when such a packaging structure is used, a packaging bag is filled with liquid or other articles to be packaged. By the way, it is preferable to bring the lower surface of the restraining piece into contact with the packaging bag body in a downwardly inclined posture at the time of use, for example, when the packaging box and the packaging bag are opened at the initial stage.

  In the packaging box according to the present invention, when the door member protruding from one side wall of the box body is oscillated and displaced, for example, in a horizontal plane, the door member is provided on the adjacent side wall prior to the outer side of the door member. Since the excision area that has been processed so as to facilitate cutting is preferably excised with fingers, the door member can be swung open, so that the door member can be opened unexpectedly. There is no need to provide special opening restraining means such as adhesive seal material to prevent the packaging, and thus the door member is displaced in the distribution process until the packaged product reaches the end user's hand. The risk of doing so can be removed.

  In this packaging box, the excision area is excised to allow the rocking displacement of the door member, and the convex part left uncut by the action of the convex part uncut area is the outer surface of the door member. The door member can be sufficiently restrained to the closed position, while the intentional opening of the door member is performed by fingering the vicinity of the convex portion formed on the adjacent side wall. Can be permitted by causing the protrusion to enter the inside of the door member with the elastic deformation of at least one of the protrusion and the door member.

  It should be noted that the same thing, instead of forming a convex portion that engages with the outer surface of the door member on the adjacent side wall, at the edge of the opening formed in the adjacent side wall by cutting the cut region in the door member, Although it can also be realized by providing a convex portion that engages with the inner surface of the adjacent side wall, in this case, there are many disadvantages that the location of the convex portion or the like cannot be visually observed from the outside of the box.

  By the way, the other basic actions or effects of this packaging box are the same as those described in Patent Document 1, but in this packaging box, in particular, a side wall that serves as a swing fulcrum of the door member. Since a subsequent tear zone is provided at the upper edge of one or two side walls at the diagonal part of the edge, the outside air can be removed by, for example, airless pouring of an article to be packaged from a packaging bag stored in the box. Due to the close contact between the inner surfaces of the packaging bag body with the occurrence of wrinkles, the packaging bag body directly returns to its original flat shape. When the package remaining on the bottom becomes unable to be fully dispensed thereafter, the tear area of the box is cut off or incised, and from there, the upper end portion of the packaging bag in the box, that is, The side of the packaging bag body with the dispensing nozzle Pulls out the upper end of the opposite side, and tears the packaging bag body from the upper end portion to allow outside air to enter the packaging bag body through the opening, thereby the inner surfaces of the packaging bag bodies By releasing the close contact, it is possible to finally pour out the article to be packaged remaining at the bottom of the packaging bag from the pour nozzle.

  In addition, when the packaging bag body is torn and the outside air enters the inside of the packaging bag body, the oxidation of the packaging object caused by the outside air coming into contact with the packaging object will proceed, but it will remain in the bag. Since the article to be packaged is immediately poured out from the packaging bag after contact with the outside air, and most of the article to be packaged is consumed quickly, the oxidation of the article to be packaged in the bag does not become a problem.

  In the packaging box as described above, when the excision area is the surrounding area of the adjacent side wall, the adjacent side edge to the one side wall, and the cutting guide rod made of perforated holes, etc. In addition to facilitating processing for the box and facilitating the production of the packaging box, the excision area can be cut out smoothly and easily.

  In addition, here, when the tearing area is defined by a tearing guide rod made of a perforated hole or the like that is formed only at the upper end of the side wall facing the adjacent side wall, the strength of the box is reduced, and the appearance of the box The side of the packaging bag body opposite to the side provided with the pouring nozzle can be removed by cutting and removing the tearing area at the end of use of the box. It is possible to easily pull out the upper end portion of the box to the outside of the box, and it is possible to easily form a slit opening in the drawn portion.

  By the way, when at least the front-end | tip part of a door member is made thick, sufficient intensity | strength can be provided to a door member.

  In the packaging box as described above, when the restraining piece provided on the side wall facing the adjacent side wall is brought into contact with the inner surface of the adjacent side wall in a downward posture, the packaged item is filled and packaged as will be described in detail later. A packaging bag that is not fixed or fixed to the packaging box when the packaged item is poured out through the check dispensing nozzle of the packaging bag under the tilt displacement of the packaging box containing the packaging bag. It is possible to effectively prevent the bottom side portion of the bag from slipping down to the position of the cut opening on the adjacent side wall. Regardless of the amount, it can be performed smoothly and reliably.

And in this case, the constraining piece has a length that allows its tip to contact the inner surface of the adjacent side wall in a downward posture, and the excision opening is blocked by the bottom side portion of the packaging bag, and the like, and It is more effective when the possibility of containment of the package due to the folding of the packaging bag itself is sufficiently removed, and this includes the lowermost edge position of the excision area and within 10 mm below it. This is more remarkable when the restraint piece is brought into contact with the inner surface of the side wall.
That is, when the restraining piece is brought into contact with the lower side of the lowermost edge over 10 mm, the restraining piece may be bent in the middle when the restraining piece is mechanically pushed in the storing position of the packaging bag. On the other hand, due to the restraining piece pressing on the in-bag package, there is a possibility that it cannot be pushed properly.
On the other hand, when the restraint piece is brought into contact with the upper side of the lowermost edge beyond 10 mm, it is difficult to make the restraint piece in a sufficiently downward posture, and there is a possibility that the resistance against the falling of the packaging bag becomes too small. is there.

  In such a packaging box, on the inner surface of the door member and the upper end portion of the two side walls sequentially adjacent to the fulcrum side thereof, for example, an adhesive layer, a pressure-sensitive adhesive layer, or the like is provided with a packaging bag joint portion. In this case, the upper end of the packaging bag stored in the box is pressed against each of the joints, or pressed under heating, to prevent the packaging bag from sliding down to the bottom of the box. The posture in the box can be as expected.

  In the packaging structure according to the present invention, the portion of the check pouring nozzle attached to the inner surface of the door member that protrudes to the side of the packaging bag body from the unsealing position to the front end side of the box, Based on excision, with the door member open, it is removed by tearing with fingers, for example, and an opening is formed in the pouring nozzle, so that the packaged items packed in the packaging bag can be tilted. Based on the above, it is possible to dispense and stop appropriately through the nozzle opening.

Here, when the packaging bag is tilted together with the packaging box so that the opening of the nozzle faces downward, the pouring nozzle made of a soft laminated film is used for the water head pressure of the package. Under the action, the front end opening is opened apart from each side of the front and back sides, allowing the packaged items to be dispensed as required.
When the packaged item is dispensed in this way, the flexible packaging bag body shrinks or collapses by the amount corresponding to the dispensed volume without sucking outside air as the packaged item is dispensed. Will be transformed.

On the other hand, after the required amount of items to be packaged is dispensed, the packaging bag and the packaging box are returned to their original standing posture to stop the dispensing, and at the same time as this dispensing is stopped, the dispensing nozzle The front and back films are brought into close contact with each other in at least the width direction, in other words, in the vertical direction under the intervention of the thin film of the object to be packaged, thereby reliably preventing the outside air from entering the packaging bag.
Therefore, in the packaging bag having the dispensing nozzle, the packaged items in the bag are sufficiently protected from contact with the outside air during and after the dispensing as well as before the dispensing of the packaged items. Thus, the contamination of the packaged items in the bag due to oxidation, external dust and the like is effectively prevented.

By the way, such close contact of the film on the front and back of the pouring nozzle here, in addition to returning the pouring nozzle to the original shape at the time of manufacture by releasing the pouring nozzle from the action of the hydraulic head pressure by the standing return of the packaging bag, When the packaged object in the dispensing nozzle returns to the inside of the packaging bag body, the front and back films are exposed to a reduced-pressure atmosphere and sucked negatively to each other. Such close contact is caused by the elastic restoring force inherent in the packaging bag body that is shrunk or crushed and deformed as the packaged material is poured from the packaging bag. On the basis of this, the inside is assisted by making it tend to be decompressed.
In this way, the tip opening of the packaging bag can be automatically sealed in close contact with the rising and returning of the packaging bag without any special operation on the dispensing nozzle, and the dispensing nozzle has an excellent check function. It can be demonstrated.

  Here, since the non-return dispensing nozzle is joined to the door member in an opening position, in other words, a position where the nozzle opening is formed to protrude forward from the front edge of the door member, When stopping the pouring of the packaged item during the standing operation, even if the packaged item may hang down from the opening at the tip of the nozzle, the packaging box may be sufficiently removed from being contaminated. it can.

After performing the required pouring of the article to be packaged as described above, the closed position in which the door member of the packaging box fits into the opening formed on the adjacent side wall based on the excision of the excision area To bring the protrusion of the adjacent side wall into engagement with the outer surface of the door member, thereby holding the door member in the closed position.
Under such a closed posture of the door member, the non-return dispensing nozzle is positioned with its protruding base or intermediate portion in the protruding direction corresponding to the swinging fulcrum of the door member, for example, Since the films are bent at a substantially right angle, the adhesion between the films on the front and back of the pouring nozzle is further ensured.
For this reason, in the closed state of the door member, entry of outside air or the like into the packaging bag is more sufficiently prevented, and even if the packaging box is accidentally laid down, it is covered. Unexpected leakage of the package can be temporarily prevented.

  On the other hand, the re-pouring of the article to be packaged opens the door member of the packaging box by releasing the engagement with the engagement protrusion of the adjacent side wall and opens the packaging bag together with the packaging box. Thus, it can be performed by tilting, and the stop can also be performed in the same manner as described above. In this case as well, the dispensing nozzle exhibits an excellent check function against the ingress of outside air based on the automatic close sealing.

  For example, in the case where the packaged items in the bag are repeatedly dispensed in this way, it is necessary to increase the tilt angle of the packaging box every time it is dispensed. The bottom part of the bag itself will also show a tendency to slide and displace to the cutting opening side of the packaging box, but here, the restraint piece folded and arranged inside the box body is the box of the packaging bag. Since it functions to sufficiently prevent the displacement of the bottom side portion that is not joined to the body, almost all of the in-bag package is smoothly poured out.

In such a packaging structure, the non-return dispensing nozzle is attached to the inner surface of the door member, for example, by locally fixing, so that the opening of the tip of the nozzle associated with the dispensing of the packaged object can be obtained. A sufficient separation displacement between the front and back films can be performed smoothly.
In other words, when any one film of the pouring nozzle is fixed to the door member with an adhesive or the like over the entire width, it is impossible to secure a sufficiently large separation deformation of the film on the front and back of the pouring nozzle.

  Further, here, the upper end portion of the packaging bag main body is also joined to the inner surfaces of the two side walls that are sequentially adjacent to the fulcrum side of the door member, so that the orientation of the packaging bag in the packaging box can be changed. It can be made into a required thing without interfering with the pouring of the packaged goods from.

  By the way, the function as described above of the restraint piece can be more fully exhibited by placing the lower surface of the restraint piece in contact with the packaging bag body portion of the packaging bag filled and packaged.

  A soft packaging bag filled and packaged with an article to be packaged is stored in the packaging box, and then the article to be packaged in the packaging bag is repeatedly poured out as described above to be packaged in the packaging bag. In this packaging structure in which the intake of outside air into the packaging bag is surely prevented if there is a slight residue, the packaging bag has its upper end fixed based on its shrinkage or collapse deformation Since the inner surface of the box is crushed with the occurrence of wrinkles, the packaging bag is tilted together with the box to slightly remain at the bottom of the packaging bag. Even if an attempt is made to pour out, the water head pressure of the article to be packaged may sufficiently release the close contact between the inner surfaces of the packaging bag, preventing the article to be delivered from reaching the dispensing nozzle.

  For the occurrence of such a situation due to a small amount of packaged items remaining in the packaging bag, the subsequent tear area provided at the upper end of the packaging box is removed or incised. From the top of the packaging bag body, the upper end of the side opposite to the side provided with the pouring nozzle is pulled out of the box, and then the upper end is cut under the action of the tear guide rod. In this way, it is possible to make a deliberate entry of outside air into the main body of the packaging bag, thereby releasing the close contact between the inner surfaces of the main body of the packaging bag, so that the article to be packaged remaining in the packaging bag can be removed from the dispensing nozzle. Make dispensing possible.

  By the way, although the residual package to be poured out in this way inevitably has a long contact time with the outside air, such a small amount of residual package is consumed relatively early. , Its oxidation etc. will not be a problem.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a developed view showing an embodiment of a packaging box according to the present invention, and FIG. 2 is a perspective view showing an assembled state thereof.
As shown in FIG. 1, the packaging box assembled in a hexahedron shape as a whole is shown in FIG. 1 from the four side walls 1, the bottom wall constituting bent pieces 2 projectingly formed on the bottom sides of the side walls, and the top sides of the three side walls. Is a top wall constituting folded piece 3 provided to protrude upward, and in FIG. 3, a folded restraining piece 4 which is formed to protrude upward from the top side of the other side wall 1 and is bent to the inside of the box. The phantom line in FIG. 1 shows the soft packaging bag 5 accommodated in the packaging box in a posture not filled with an article to be packaged.

  Here, a packaging box 6 made of paper or plastic and having an unfolded form as shown in FIG. 1 protrudes from the upper end of one side wall 1 located on the rightmost side to the side of the adjacent side wall. For example, a door member 7 that swings and displaces in a horizontal plane with the side wall edge as a fulcrum is provided, and the adjacent side wall 1 is disposed on the outside of the door member 7 as shown in FIG. An excision area 8 that allows the swinging displacement of the door member 7 is provided over the part of the adjacent side wall 1 that overlaps with the door member 7 and the part corresponding to the front end side part of the door member 7, and preferably this excision area 8 is a surrounding area of the adjacent side wall 1 between the adjacent side edge 8a to the one side wall 1 and a cut-out guide rod 8b formed by a perforated hole or a thin portion as shown in the figure. It is formed by.

  Therefore, in this case, the unexpected opening displacement of the door member 7 in the distribution process of the product can be sufficiently prevented without the necessity of the auxiliary material or the like in the presence of the excision area 8. The artificial open displacement 7 can be easily performed through the excision opening of the adjacent side wall 1 formed by the excision by excising the excision region 8 as necessary.

Further, here, the projecting portion that is formed after the excision after the excision is formed in this manner, and is partially engaged with the outer surface of the door member 7 and functions to prevent an unintended opening displacement thereof. Nine uncut formation areas 9a are provided in a part of the previous cutting guide rod 8b.
In this figure, in order to reduce the required protruding amount of the convex portion 9, it is provided so as to substantially correspond to the corner of the corner of the door member 7, but the convex portion 9 is a straight line of the door member 7. It is also possible to provide it corresponding to the extending portion.

  Preferably, at least the front end portion of the door member 7 is made thick by, for example, bending and joining the front end tongue piece 7a shown in FIG. 1 to the inner surface side of the door member 7, thereby reducing the thickness of the box body material. A high strength is imparted to the door member 7.

Here, as shown in FIG. 3, the folding restraint piece 4 protrudes from the top side of the side wall 1 facing the adjacent side wall 1, is bent to the inside of the box, and its tip 4 a is formed on the adjacent side wall 1. It has a protruding length that engages the inner surface in a downward posture.
In this case, it is preferable that the projecting length is such that the inner surface of the adjacent side wall 1 is engaged with each other within the range of 10 mm above and below the lowermost edge position of the cut region 8.

Further, in the place shown in FIG. 1, a perforation-like shape is provided at the upper end corner of the side wall 1 facing the adjacent side wall 1 provided with the turn-up restraining piece 4 corresponding to the upper end portion of the side portion of the packaging bag 5. A tearing area 11 is provided which is defined by a slitting bar 10 made of a hole or the like.
Such a tear region 11 can also be formed over two side walls adjacent to each other, and the slits 10 that define the tear region 11 can be endlessly continuous. And according to this, the torn area 11 to be divided will be completely cut off after the fact.

  By the way, although the cut-off scissors 10 shown in the figure is provided with a convex curved portion that facilitates the pushing of a finger, this curved portion is not essential. Further, the shape and size of the tear zone 11 defined by the slitting bar 10 can be appropriately selected as required.

When opening the packaging box 6 having such a configuration and assembling as shown in FIG. 2, a finger is applied to the edge of the adjacent side wall 1, and the cut region 8 is formed as shown in FIG. As shown in FIG. 4, the cut-out guide rod 8b is completely cut off and removed.
As a result, the door member 7 is exposed to the outside as shown in FIG. 4 (a). Here, the door member 7 is not cut off in such an exposed state. The protrusion 9 formed with the region 9a is maintained in the closed state by engagement with the outer surface of the door member.

After unpacking the packaging box itself as described above, the protrusion 9 of the adjacent side wall 1 is pushed and deformed to release the engagement of the protrusion 9 with the door member 7. As shown in FIGS. 4B and 5, the door member 7 can be oscillated and displaced in the opening direction.
The door member 7 once opened and closed can be closed by pressing the door member 7 to the inside of the box 6 and pushing the door member 7 to the inside of the hooking projection 9. According to this, the door member 7 is reliably held in the closed posture under the engagement of the convex portion 9.

  In such a packaging box 6, the thickness of the used paper material or the like was reduced, and it was excellent in sufficiently resisting the deformation of the soft packaging bag filled and packaged with the packaged material to be stored in the box. In order to exhibit the formability, it is preferable to provide a plurality of reinforcing recesses 12 extending in the horizontal direction on each side wall 1 in at least the lower half of the box, as illustrated in FIGS.

Since the packaging box 6 as described above mainly functions so as to impart formability to the soft packaging bag, there is no need to laminate a resin material on the box, and therefore the packaging box 6 is recycled. In addition, since the used paper can be used for the packaging box itself, it can contribute to resource saving and cost can be reduced.
In addition, even after the packaging box 6 is opened, the door member 7 can be securely closed and opened as expected by bringing the door member 7 into and out of the engaging projection 9. Can be realized.

FIG. 6 shows a packaging structure according to the present invention, in which the soft packaging bag that contributes to filling and packaging of the packaged object and is stored in the packaging box for use is in a state before filling the packaged object. It is a top view shown by.
In the figure, reference numeral 21 denotes a check pouring nozzle. The pouring nozzle 21 is, for example, the upper end portion of one side fusion portion of the soft packaging bag body 22 and is applied to the sealant layer on the inner surface thereof. The base end portion is fusion bonded to the outer sealant layer in a lateral projecting posture.

  Here, the pouring nozzle 21 includes a thermoplastic base film layer, for example, a biaxially stretched polyethylene terephthalate layer having a thickness of 5 to 20 μm, and respective sealant layers laminated on both sides of the base film layer, for example, 5 to 5 μm. A laminated film consisting of an unstretched polyethylene layer having a thickness of 80 μm, preferably 20 to 100 μm, disposed on each side of the front and back, that is, a laminated film having two identical front and back profiles, As shown in the figure, a single laminated film folded back on the front and back at the center is hatched in each figure, preferably by heat sealing, in each side part except the base side, in the mutually facing posture of the inner surface side sealant layer. It can be configured by fusing together.

  In the figure, reference numeral 23 denotes a tear-opening scheduled position of the check pouring nozzle 21, which is formed in one of the fusion parts facing the width direction of the nozzle, in the figure in the vertical direction, and is a V-shaped bent part that replaces the tearing start flaw. The V-shaped bent portion 23 functions to facilitate tearing and removal of the nozzle tip portion including the tip fusion portion 24 of the dispensing nozzle 21. Here, the V-shaped bent portion 23 can also be formed in the fusion portion on the lower side of the figure.

Each of the two upper and lower fused portions 25 and 26 is located opposite the width direction of the nozzle and extends to the base end side of the pouring nozzle 21 in the drawing, from the position where the V-shaped bent portion 23 is formed. On the end side, it is preferable to extend from the V-shaped bent portion 23 so as to be inclined downwardly, and the interval between the fused portions 25 and 26 is V-shaped from the base end portion. It is preferable that this is gradually reduced gradually toward the V-shaped bent portion 23 until the formation position of the bent portion 23 is reached.
In the figure, reference numeral 27 denotes a chevron that is torn off and is formed so as to protrude downward from the front end portion of the nozzle 21 toward the lower side in the drawing and function to improve the liquid drainage of the package. Indicates the part.

  In such a pouring nozzle 21, the V-shaped bent portion 23, which is the tearing and unsealing position thereof, is a plan view shown in FIG. 6, and is slightly deviated toward the tip side from the position where the nozzle level becomes the highest. It is preferable that the road is positioned at a part inclined downward. According to this, after the nozzle 21 is opened and the packaged article is poured out, the packaging bag is returned to the standing posture and the pouring is stopped. In this case, in particular, the liquid cutting property is improved under the action of the inclined fusion portion of the lower fusion portion 26 of the nozzle 21 and the angle-shaped projection 27, and the packaged object along the lower side surface of the nozzle 21 is improved. Dripping can be prevented more advantageously.

The non-return dispensing nozzle 21 configured as described above has the same function as the filling and packaging of the article to be packaged into the soft packaging bag body 22, or as shown in FIG. For example, the sealant layer on the outer surface of the base end portion of the nozzle 21 is preferably heat-sealed on the inner surface of the packaging bag body 22 at the fusion part between the sealant layers on one side of the packaging bag body 22. Is formed into a part of the packaging bag by fusion bonding, and protrudes laterally from the upper end portion of the packaging bag body 22 in the figure.
Here, the packaging bag main body itself and the fused portion between the packaging bag main body 22 and the dispensing nozzle 21 are indicated by hatching in the drawing.

  In order to prevent mutual sealing of the sealant layer on the inner surface of the nozzle during such fusion bonding of the outer surface of the base end portion of the nozzle 21 to the packaging bag body 22, the inner and outer surfaces of the nozzle 21. It is effective to make the melting points of the respective sealant layers different.

Here, it is preferable that the sealant layer forming the inner surface of the soft packaging bag body 22 is made of the same kind of resin material as the sealant layer on the outer surface of the nozzle in order to increase the fusion strength. Further, the base film layer of the packaging bag body can be made of the same type as that of the nozzle 21 and can be selected from various materials having required physical properties.
In addition, when the required physical properties cannot be secured in the packaging bag body only by the base film layer, an aluminum foil or other intermediate layer may be interposed between the sealant layer and the base film layer. Is possible.

  By the way, the non-return dispensing nozzle 21 can also be formed integrally with the packaging bag body itself, and according to this, the step of fusing and joining the nozzle 21 to the packaging bag body 22 can be eliminated.

  Such a packaging bag 5 may be in a full form as illustrated in FIG. 7 by filling and packaging the liquid article to be packed therein, preferably under deflation, but the flexible packaging bag itself. Is usually not self-supporting or fixed, so when transporting, storing, displaying, using, etc., an article to be packed into the aforementioned packaging box 6, for example, at a plurality of locations. It is preferable that the packaging bag is stored under fixing or adhering to give self-supporting property and formability.

FIG. 8 is a perspective view illustrating this with respect to the main part. Here, each of the inner surfaces of the door member 7 and the inner surfaces of the upper end portions of the two side walls 1 sequentially adjacent to the fulcrum side, for example, hot Packaging bag joints 13, 14, and 15, which can be melt joints, are respectively provided, a part of the dispensing nozzle 21 is locally joined to the joint 13, and the joints 14 and 15 are The upper end portion of the packaging bag body 22, preferably the upper heat seal portion, is joined to the packaging bag body 22 at intervals in the width direction, so that the inside of the packaging bag 5 filled and packaged with the article to be packaged It will be possible to maintain a standing posture and shape.
In this case, the lower end portion of the packaging bag 5 is seated on the bottom wall of the packaging box 6, and much of the weight in the bag is supported by the bottom wall.
By the way, in joining the packaging bag 5 to the inner surface of the packaging box 6 in this way, as shown by the phantom line in FIG. 5, the tearing opening position of the pouring nozzle 21, in other words, the V-shaped folding It is important that the formation position of the curved portion 23 is a posture protruding forward from the front end edge of the door member 7.

  In order to pour out the required amount of packaged goods packed and packaged from the packaging bag 5 thus housed in the packaging box, the packaging box 6 is opened as described above, and the door is opened. The member 7 is also opened as described above, resulting in an open state as shown in FIG. 5, and the non-return dispensing nozzle 21 of the packaging bag 5 at the upper side, as shown. From the V-shaped bent portion 23 of the portion 25, the portion on the nozzle tip side is removed by tearing, for example, with fingers, and the packaging bag 5 is opened.

After the packaging bag 5 is opened in this way, for example, in a state where the packaging box 6 is lifted, the packaging bag 5 is tilted as shown in FIG.
By the way, the material to be packaged in this case can be poured out by specifying the nozzle position by the door member 7 and visually by the dispensing nozzle 21 protruding from the side wall 1 of the box 6. Since the level of the article to be packaged in the bag is usually located substantially below the door member 7, the article to be packaged can always flow down to the intended position.

  In addition, when such an item to be packaged is dispensed, the tip opening of the dispensing nozzle 21 which is joined to the door member 7 and protrudes from the excision opening of the adjacent side wall 1 is the water head pressure of the packaged item in the bag. Will be fully open to the front and back sides, so that the required dispensing will be carried out smoothly, and securing the flow rate by such dispensing will reduce the amount of packaging in the bag. Accordingly, the tilting angle of the box 6 is increased.

  By the way, as described above with reference to FIG. 3, the sliding displacement of the bottom side portion of the packaging bag 5 to the door member 7 side caused by increasing the tilt angle of the packaging box 6 is the adjacent side wall. Since the restraint piece 4 that contacts the inner surface of 1 in a downward posture is brought into contact with the packaging bag body 22 and restrains its displacement, the tilt angle of the box 6 is increased. The packaged items in the bag are always smoothly and reliably poured out.

  Here, the soft packaging bag 5 undergoes shrinkage deformation or crushing deformation according to the volume of the dispensed amount when such an article to be packaged is dispensed, and therefore into the packaging bag accompanying the dispense. Thus, the outside air is sufficiently prevented from entering, and the in-bag package is effectively protected against the outside air.

On the other hand, after the required amount of articles to be packaged has been poured out, the box 6 is returned to the standing posture shown by the phantom line in FIG. This provides an automatic close and close of the 21 tip openings.
Here, as described above, this close-contact of the pouring nozzle 21 is performed by releasing the pouring nozzle 21 from the hydraulic head pressure so that the laminated films on the front and back sides are interposed by the thin film of the packaged object. When the discharge nozzle 21 is restored to its original shape at the time of manufacture, and the packaged material in the discharge nozzle flows down into the packaging bag body 22, the front and back films are placed in a reduced-pressure atmosphere. In this case, the negative pressure is mutually adsorbed over the entire width direction.

Such close contact is based on the fact that the packaging bag body 22 that has been crushed and deformed tends to depressurize the inside of the packaging bag based on the inherent elastic restoring force in relation to the remaining amount of the package. It will be maintained reliably.
Therefore, here, based on the close contact of the nozzle 21 at the same time as the dispensing is stopped and the continuous maintenance of the close contact, the packaged items in the bag are continuously protected from the outside air from the stop of the dispensing. You can also.

  Moreover, since the pouring of the article to be packaged from the non-return pouring nozzle 21 is performed through the front end opening of the nozzle 21 that protrudes from the front end edge of the door member 7, Does not adhere to the door member 7, and therefore, the adherend to be packaged does not travel down to the bottom of the box 6 when the box 6 rises up and down.

After finishing the required pouring as described above, the door member 7 is in the closed posture as shown in FIG. 4A in which the hooking protrusion 9 is hooked on the outer surface thereof as described above. As a result, the door member 7 is completely and surely closed. Preferably, the check pouring nozzle 21 is placed at the position corresponding to the swing fulcrum of the door member 7 and the object to be packaged is poured. From the exit position, for example, it is bent approximately 90 °.
Here, this bending of the non-return pouring nozzle 21 brings about further adhesion of the film on the front and back of the pouring nozzle 21, so that after the door member 7 is closed, the outside air or the like enters the packaging bag more. It is surely prevented, and leakage of the packaged item can be temporarily prevented against unexpected collapse of the packaging box 6 or the like.

  By the way, by repeating such pouring accompanying the opening and closing of the door member 7, a small amount of an article to be packaged remains in the packaging bag 5, and only by the tilting operation of the packaging box 6, In the case where the remaining packaged object cannot be poured out from the dispensing nozzle 21 due to the close contact between the inner surfaces of the packaging bag 5, it is provided at the upper corner of the side wall 1 facing the adjacent side wall 1. As shown in FIG. 10 (a), the tearing region 11 is cut along the slitting ridge 10 with fingers, and the check dispensing nozzle 21 of the packaging bag body 22 is opened through the slit opening. As shown in FIG. 10 (b), the upper end of the side opposite to the provided side is pulled out to the outside of the box, and the upper end is provided at the upper end edge of the packaging bag body. V-notch, minus-notch, etc. as illustrated in Figs. By tearing as shown in FIG. 10C under the action of the tearing guide rod 16 capable of forming, the close contact between the inner surfaces of the packaging bag body 22 is released based on the loosening of the packaging bag body 22 and the like. And bring the outside air into it.

  After the close contact between the inner surfaces of the packaging bag body 22 is released by the entry of outside air into the packaging bag body 22, the article to be packaged remaining at the bottom of the packaging bag 5 smoothly flows to the pouring nozzle 21 thereof. Therefore, by completely pouring it from the pouring nozzle 21, it is possible to always completely pour out the in-bag package.

Using the packaging structure according to the present invention, from the packaging bag filled and packaged with soy sauce, the remaining weight in the bag when the soy sauce is poured out until it becomes unpourable, from the tear guide bag of the packaging bag main body part When measured before and after tearing (n = 3), the results shown in Tables 1 and 2 were obtained.
The initial filling amount (net) of soy sauce in the packaging bag was 1000 g.
By the way, Table 1 shows the measurement results when the laminated structure of the packaging bag body portion is NY ¹⁵ / D / Al ⁷ / LLDPE ^40, and Table 2 shows the laminated structure of the packaging bag body portion as NY ¹⁵ / shows the measurement results when the D / transparent deposited ^PET 12 / LLDPE ^40.
Where, NY: biaxially stretched nylon film
D: Dry laminate
Al: Aluminum foil LLDPE: Linear low-density polyethylene Transparent deposition: Silica deposition film PET: Polyethylene terephthalate film.

  According to Tables 1 and 2, as soy sauce is poured out from the packaging bag stored in the packaging box, it is contained in the bag generated in the packaging bag or contained in the bottom of the packaging bag. It is clear that soy sauce of about 5 to 9% of the initial packaging amount, which is forced to remain in the packaging bag, can be poured over almost the entire amount by tearing the packaging bag body.

It is an expanded view which shows embodiment of the packaging box. It is a perspective view which shows the assembly state of the packaging box. It is a figure which illustrates the return | turnback form of a tongue piece. It is a figure which illustrates the opening process of a packaging box. It is a perspective view which shows the open state of a door member. It is a top view which shows a packaging bag. It is a perspective view which shows the filling packaging state of the to-be packaged object to a packaging bag. It is a principal part perspective view which shows the example of formation of the packaging bag junction part to the inner surface of the packaging box. It is a side view which shows the example of the extraction of a to-be-packaged object. It is process drawing which illustrates the effect | action of a tear area.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Side wall 2 Bottom wall structure bending piece 3 Top wall structure bending piece 4 Folding restraint piece 5 Packaging bag 6 Packaging box 7 Door member 7a Tip tongue piece 8 Cutting area 8a Adjacent side edge 8b Cutting guide rod 9 Protruding part 9a Cutting Remaining area 10 Opening ridge 11 Tear area 12 Reinforcing recess 13, 14, 15 Packaging bag joint 16 Tear guide rod 21 Non-return dispensing nozzle 22 Packaging bag body 23 V-shaped bent part 24 Tip fusion part 25, 26 Fusion part 27 Yamagata protrusion

Claims (9)

  A paper or plastic box having a hexahedral shape is provided with a door member that protrudes from the side wall to the adjacent side wall and swings around the side wall edge as a fulcrum at the upper end of one side wall. Are disposed on the outside of the door member, and a portion of the adjacent side wall that overlaps with the door member and a cut-out area that corresponds to the front end side portion of the door member are provided. Protrusion area that partially engages with the outer surface of the door is provided, and a post tear zone is provided at the upper edge of one or two side walls at the diagonal part of the side wall edge that serves as the swing fulcrum of the door member. A packaging box.   The packaging box according to claim 1, wherein the cut-out area is a surrounding area between the adjacent side wall of the adjacent side wall to the one side wall and the cutting guide rod.   The packaging box according to claim 1 or 2, wherein the tear area is partitioned by a tear guide rod formed on a side wall facing the adjacent side wall.   The packaging box according to any one of claims 1 to 3, wherein at least a front end portion of the door member is thickened.   Provided on the side wall opposite to the adjacent side wall is a constraining piece that protrudes from the top side and is bent inward of the box, and this constraining piece engages with the inner surface of the adjacent side wall in a downward posture. The packaging box according to any one of claims 1 to 4, wherein the packaging box is a length.   6. The packaging according to claim 5, wherein the restraining piece has a protruding length that engages within 10 mm above and below each of the constraining pieces, including the lowermost edge position of the excision area on the inner surface of the adjacent side wall. Box. A packaging structure using the packaging box according to claim 5 or 6,
A flat non-return dispensing nozzle with a sealed tip is provided at the upper end of the soft packaging bag body in a protruding direction to the side, and the upper edge of the other side of the packaging bag body A packaging bag having a tear guide rod at the part is stored in a packaging box, and the upper end of the packaging bag is attached to the inner surfaces of two adjacent side walls at a plurality of locations, and a check dispensing nozzle is installed. A packaging structure in which the unsealing position is attached to the inner surface side of the door member in a posture that protrudes forward from the front end edge of the door member, and the restraint piece is bent to the inside of the box.   The packaging structure according to claim 7, wherein a package is filled and packaged in a packaging bag.   The packaging structure according to claim 8, wherein the lower surface of the restraining piece is brought into contact with the packaging bag body.

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