JP2014005007A - Packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a locking mechanism for maintaining the reduced volume of a used packing box during the operation of pressing the packing box into a flat form.SOLUTION: A packing box 100 for housing retort pouch food has a first slit 40 linearly extending in the vertical direction at a lower lateral edge of a front surface 2 of the packing box 100, and a nonlinear second slit 42 corresponding to the first slit 40 is formed in a rear surface 4. A lip 44, which is formed by digging a thumb's nail into the second slit 42 during the process of flattening the packing box 100 after use in the front and rear directions with hands, passes through the first slit 40, and maintains the flat state in which the front surface 2 and the rear surface 4 lie on top of each other.

Description

  The present invention relates to a packaging box that can be flatly folded and disposed of in a reduced volume, and typically relates to a packaging box that contains food and foodstuffs.

  The packaging box is a target for disposal after the contents are taken out from the packaging box, but various proposals have been made for volume reduction to reduce the bulk at the time of disposal. Patent Document 1 relates to a packaging box of an annular fluorescent tube, and provides a weakening line so that the packaging box can be flattened by opening an end face (lower end face) or both side faces opposite to the unsealed end. is suggesting. Moreover, this patent document 1 locks the cutting edges which oppose each other of the packaging box flatly crushed by the tongue piece which appears in connection with the cutting | disconnection of the said weakening line when the said weakening line is cut | disconnected. is suggesting.

  Patent Document 2 provides a weakened portion where a weakening line that opens in a triangular shape including the lower end surface is provided on an end surface (lower end surface) opposite to the unsealed end and a finger is inserted into a main surface adjacent to the lower end surface. And a packaging box that can be easily flattened by cutting into a triangular shape including the lower end surface starting from the finger insertion portion of this main surface.

  Patent Document 3 proposes that the opened packaging box is crushed and flattened, and then folded into two, and when the two folded, the overlapping tongue pieces at the ends facing each other are pushed with fingers to overlap each other. It has been proposed to lock the ends facing each other by bending the piece in one direction.

JP 2002-2111548 A JP 2004-262549 A JP 2006-2225015 A

  Even if the used packaging box is crushed and flattened, it returns to a bulky state due to the restoring force of the fold of the packaging box. For this reason, Patent Documents 1 and 3 propose that the flat state is maintained by locking with a tongue after flattening. However, in the proposal of Patent Document 1, weakening lines are formed on the main surface. Patent Document 3 has the advantage that the projected area is halved compared to simply flattening the packaging box by flattening the disassembled packaging box, but it not only doubles the bulk but also packaging. Additional work is required to fold the box in half.

  The market is filled with a large amount of various foods and ingredients, and many of these are supplied to the market after being packaged in a primary box. Packaging boxes are a waste target for consumers. The importance of resource recycling is increasing day by day, and the separation of garbage from each household is the key to the collection of sorted garbage in each municipality.

  An object of the present invention is to provide a packaging box capable of causing a lock mechanism for maintaining a small volume in the process of the operation of flatly crushing a used packaging box.

  A further object of the present invention is to provide a packaging mechanism capable of appearing a lock mechanism for keeping the bulk small in the course of the operation of flattening the packaging box when discarding the packaging box containing food or foodstuffs. To provide a box.

According to the present invention, the above technical problem is
A packaging box having a front surface, a rear surface, left and right side surfaces, and upper and lower end surfaces, the front surface and the rear surface having a common rectangular shape,
A first slit formed on the front surface or the back surface and extending linearly;
A second slit formed on the back surface or the front surface and corresponding to the first slit and extending non-linearly;
The second slit is disposed at a position accessible by a thumb with a nail when performing an operation of manually pressing the fold of the packaging box to crush the packaging box, and the first slit, The second slit is disposed at a position that is aligned with each other when the packaging box is crushed back and forth,
Provided is a packaging box, wherein a lip formed by pushing down the second slit with a clawed thumb passes through the first slit so that the front surface and the back surface are locked with each other. Is achieved.

  If the packaging box is, for example, the size of a palm, the non-linear second slit may be arranged at the front or rear central portion of the packaging box. If the packaging box has a relatively large size, the non-linear second slit may be disposed at the front or rear central portion of the packaging box. If the linear first slit is formed in alignment with, for example, the side edge of the front surface, the packaging box becomes a packaging box having a front surface without a slit.

  By arranging the first and second slits described above in the packaging box, the front and back surfaces are locked to each other by pushing down the second slit with a thumb nail in the process of flattening the used packaging box. be able to. Thereby, the bulk of the used packaging box can be kept small.

  When the second slit is representatively selected and described with respect to the arrangement positions of the first and second slits arranged at positions that are aligned with each other when the packaging box is crushed flat, this non-linear second The slit is typically formed in a side region defined within a predetermined distance from the side edge of the front surface toward the center in the width direction of the front surface. Here, the predetermined distance is the maximum distance that a thumb with a nail can reach when the fold of the packaging box is pressed by hand to flatten the packaging box.

  Other objects and advantages of the present invention will become apparent from the following detailed description of preferred embodiments of the present invention.

The packaging box of 1st Example is shown, (A) is a front view, (B) is a top view, (C) is a left side view, (D) is a right side view, ) Is a rear view. It is a perspective view of the packaging box of 1st Example, and is a figure which shows the packaging box of the state which turned the back up. It is an expanded view of the packaging box of 1st Example. It is a perspective view which shows the packaging box of 1st Example of the state crushed back and forth in the state which turned the back up. It is a figure which shows the state which is pushing the 2nd slit with the thumb which stood the nail | claw in the process of crushing the packaging box of used 1st Example. FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5, where a lip formed by pushing a non-linear second slit with a thumb passes through the linear lip so that the front surface and the back surface are locked. It is a figure for demonstrating becoming a state. It is an expanded view of the packaging box of 2nd Example. It is an expanded view of the packaging box of 3rd Example. It is expansion | deployment of the packaging box of 4th Example. It is a perspective view which shows the packaging box of 4th Example of the state crushed back and forth in the state which turned the back up. It is a figure for demonstrating the preferable arrangement position of the 1st slit extended linearly up and down.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

First Example (FIGS. 1 to 6) :
1 to 3 show a packaging box 100 of the first embodiment. FIG. 1 shows a packaging box 100 after assembling, (A) is a front view of the packaging box 100, (B) is a plan view of the packaging box 100 viewed from above, and (C) is a packaging box 100. (D) is a side view of the packaging box 100 viewed from the right, and (e) is a rear view of the packaging box 100 viewed from the back. FIG. 2 is a perspective view of the packaging box 100 with the back side up, and FIG. 3 is a development view. The packaging box 100 is mainly made of cardboard, and the packaging box 100 accommodates food that is primarily packaged with a film or a molded container. Specifically, a retort pouch containing a full-size curry is put in the packaging box 100 and supplied to the market.

  The packaging box 100 for storing the retort food has two main surfaces 2 and 4, one main surface 2 is the front surface, and the other main surface 4 is the back surface. The front surface 2 and the back surface 4 have a common rectangular shape, and the front surface 2 and the back surface 4 are connected by a right side surface 6, a left side surface 8, an upper end surface 10, and a lower end surface 12. In addition, since the lower end surface 12 is the same as the upper end surface 10, illustration is abbreviate | omitted in FIG. The left and right side surfaces 6 and 8 have a common rectangular shape, and the upper and lower end surfaces 10 and 12 have a common rectangular shape.

  With reference to the development view of FIG. 3, in this embodiment, the right side surface 6 is disposed between the front surface 2 and the back surface 4, and the left side surface 8 is continuously provided on the left side of the front surface 2. The left side surface 8 may be disposed between the front surface 2 and the back surface 4, and the right side surface 6 may be connected to the right side of the front surface 2.

  A first flap 14 is connected to each end in the longitudinal direction of the right side surface 6 located between the front surface 2 and the back surface 4. A second flap 16 is continuously provided at each end in the longitudinal direction of the left side surface 8 provided continuously with the front surface 2. Further, a first margin 18 is formed at the upper and lower ends of the back surface 4, and a second margin 20 extending continuously in the longitudinal direction of the back surface 4 is formed at the outer end in the width direction of the back surface 4. Has been.

  Of the upper, lower, left, and right folds 22, 24, 26, and 28 that form the outline of the rectangular front surface 2, the upper and lower folds 22, 24 are composed of weakening lines. Similarly, of the upper, lower, left and right folds 30, 32, 34, 36 that form the outline of the rectangular back surface 4, the upper and lower folds 30, 32 are formed of weakening lines, and the longitudinal intermediate portions of the upper and lower folds 30, 32 are formed. Finger insertion portions 30a and 32a are formed on the top.

  Referring to FIG. 1, a pair of left and right first slits 40 extending linearly are formed below the left and right folds 26 and 28 of the front surface 2, and the back surface 4 corresponding to each first slit 40. A non-linear second slit 42 is formed at the position. That is, the packaging box 100 has a pair of left and right straight first slits 40 extending in the lower portion of the front surface 2 and a pair of left and right non-linear second slits 42 in the lower portion of the back surface 4. ing.

  The second slit 42 forms a lip (tongue piece) by being pressed by a consumer with a finger, and as a preferred mode, the second slit 42 is a curved curve that protrudes toward the center in the width direction of the back surface 4. It is comprised by the cutting line extended up and down centering on the contour which did. Note that all or part of the first and second slits 40 and 42 may be formed of weakening lines.

  The packaging box 100 in an unfolded state is made by folding each surface in the same manner as in the past, after spot-applying adhesive on appropriate portions of the first and second adhesive margins 18 and 20.

  When a curry retort pouch (not shown) is taken out from the packaging box 100, a finger is inserted into the upper or lower finger insertion portion 30a, 32a to cut the weakening line 30 or 32, or the adhesive margin 18 is broken. Thus, the packaging box 100 can be opened.

  When discarding the packaging box 100, typically, the upper and lower weakening lines 30, 32 on the back surface 4 are cut or the adhesive margin 18 is broken, and then the packaging box 100 is crushed back and forth to make it flat. be able to. The flat packaging box 100 is shown in FIG. FIG. 4 is drawn with the back surface 4 facing up.

  FIG. 5 is a diagram for explaining an operation in the process of flattening the used packaging box 100. The packaging box 100 can be made flat by holding the packaging box 100 to be discarded and tightly pressing the folds 26, 28, 34, 36. The flatly crushed packaging box 100 is in a state where the front surface 2 and the back surface 4 overlap each other, but the front surface 2 and the back surface 4 tend to be separated by the restoring force of the fold.

  The packaging box 100 has the above-described non-linear second slit 42 formed on the back surface 4 thereof. When flattening the packaging box 100 of the embodiment, first, the back surface 4 is turned up, and during the flattening operation, preferably the second slit is a non-linear second with the thumb standing while bending the packaging box 100 in a bow shape. 42 is pushed down (front side 2 side). A lip (tongue piece) 44 is formed by pressing the non-linear second slit 42 with the nail of the thumb Th. As described above, the linear first slit 40 is formed on the front surface 2 corresponding to the non-linear second slit 42 on the back surface 4.

  When the non-linear second slit 42 is pushed down (front side 2 side) with the thumb Th with the nail raised, a lip 44 formed along with this is formed on the front surface 2 corresponding to the second slit 42. The back surface 4 is locked to the front surface 2 when the lip 44 is received by the first slit 40. This state is shown in a sectional view in FIG. As can be easily understood from FIG. 6, the lip 44 formed by pushing down the non-linear second slit 42 on the back surface 4 causes the straight first slit 40 on the front surface 2 positioned corresponding thereto to be formed. Pass through and exit the front 2 surface. Thereby, the front surface 2 and the back surface 4 are locked in a flat state in which the front surface 2 and the rear surface 4 overlap each other by the lip 44.

  In the packaging box 100 of the embodiment, the second slits 42 are formed on the left and right sides of the back surface 4, and the first slits 40 are formed on the left and right sides of the front surface 2 corresponding thereto. Even if the side surfaces 6 and 8 are crushed in the right-side down state and crushed in the left-side-down state, the left and right second slits 42 on the back surface 4 coincide with the straight slits 40 on the front surface 2. By selecting the second slit 42 and pushing it down with the thumb Th in the process of flattening the packaging box 100, the above-described lock by the lip (tongue piece) 44 can be realized.

  Drawings after FIG. 7 are diagrams showing another embodiment of the present invention. In the description of these other embodiments, the same elements as those in the first embodiment described above are denoted by the same reference numerals, the description thereof is omitted, and the characteristic portions of the respective embodiments are described below.

Second Example (FIG. 7) :
In the first embodiment described above, a pair of linear first slits 40 are provided on the left and right, and a pair of non-linear second slits 42 are provided on the left and right at positions corresponding thereto (two sets). In the packaging box 200 of the second embodiment, the first and second slits 40, 42) are formed with one non-linear second slit 42 on the back surface 4 and one on the front surface 2. Two linear first slits 40 are formed. That is, the first and second slits 40 and 42 included in the packaging box 200 of the second embodiment are a set. Of course, the first and second slits 40 and 42 are aligned with each other when the front surface 2 and the rear surface 4 of the packaging box 200 are overlapped with each other, that is, when the packaging box 200 is crushed with the side surface 6 down. It is formed in the position to do. The first and second slits 40 and 42 are arranged on the left side of the packaging box 200 in the illustrated example, but may be arranged on the right side.

Third Example (FIG. 8) :
In the first embodiment described above, the first and second slits 40, 42 are formed in the lower part of the packaging box 100. However, in the packaging box 300 of the third embodiment, the upper and lower sides of the packaging box 300 are arranged. A pair of left and right first and second slits 40 and 42 are formed in the middle portion in the direction. Even in the packaging box 300, the first and second slits 40 and 42 are aligned with each other when the front surface 2 and the back surface 4 of the packaging box 300 overlap each other, that is, when the packaging box 300 is crushed. Formed in position. Also in the packaging box 300 of the third embodiment, as described in the second embodiment, the first and second slits 40 and 42 may be a set.

Fourth Example (FIGS. 9 and 10) :
In the first to third embodiments described above, the first slit 40 extending linearly in the vertical direction is formed in the left and right folds 26 and / or 28. However, there is a case in the packaging box 400 of the fourth embodiment. A pair of first slits 40 extending linearly in the vertical direction are formed at positions offset to the center in the width direction of the front surface 2 with respect to the left and right fold lines 26 and 28 that define the front surface 2. In the back surface 4, a non-linear second slit 42 is formed at a position offset to the center in the width direction as compared with the first to third embodiments.

  The first and second slits 40 and 42 are formed in positions that are aligned with each other when the packaging box 400 is crushed, as in the first to third embodiments described above. The arrangement position of the second slit 42 offset to the center in the width direction of the back surface 4 with respect to the left and right fold lines 34 and 36 is determined as described above with reference to FIG. It is preferable to set the position so that the lip 44 can be formed by pushing the non-linear second slit 42 while raising the nail.

  The embodiment in which the linear first slit 40 is provided on the front surface 2 and the non-linear second slit 42 is provided on the rear surface 4 has been described above, but conversely, the linear first slit 40 is provided. A non-linear second slit 42 may be provided on the front surface 2 on the back surface 4. Further, the number of the first slits 40 and the second slits 42 may be one set as described in the second embodiment (FIG. 7) or a plurality of sets. Moreover, the 1st, 2nd slits 40 and 42 may be provided in the lower part of a packaging box, may be provided in an up-down direction intermediate part, and may be provided in the upper part of a packaging box.

  When a plurality of sets of the first and second slits 40 and 42 are provided, one set of the first and second slits 40 and 42 is provided in the lower part, and the other set of the lower slits 40 and 42 is provided in the upper part or You may make it provide in an up-down direction intermediate part.

  The arrangement positions of the first and second slits 40 and 42 will be described below with reference to FIG. FIG. 11 is a diagram in which a front surface 2 and upper and lower end surfaces 10 and 12 and left and right side surfaces 6 and 8 surrounding the front surface 2 are extracted from a development view of the packaging box. In the case where the above-described linear first slit 40 is formed on the side portion of the front surface 2, a preferable region for arranging the first slit 40 is indicated by a reference symbol Sa. A preferable side region Sa for disposing the first slit 40 includes folds 26 and 28 extending vertically to define the side edges of the front surface 2, and the claw described above with reference to FIG. 5 from the folds 26 and 28. This is the maximum distance L1 that the thumb Th in the standing state can reach. Here, the range in which the thumb Th with the nail raised reaches the individual. Since it is housewives and adult women that are likely to handle foods such as retort curry that are primarily packaged, the thumb Th with its nails raised based on the average hand size of adult women The maximum distance L1 that can be reached can be defined.

  Further, a preferable side region Sa for disposing the first slit 40 may be separated from the fold lines 22 and 24 that define the upper and lower edges of the front surface 2 by a distance L2. If it is too close to the upper and lower edges of the front surface 2, the locking effect by the lip 44 described above is weakened, and there is a possibility that the crease is restored at a position away from the lip 44 and the volume reduction effect is reduced.

  The packaging boxes 100, 200, 300, and 400 of the embodiment have dimensions of 160 mm in length, 130 mm in width, and 20 mm in depth. However, in this example, the maximum distance L1 is 40 mm and the maximum distance L2 is 20 mm. An example can be mentioned.

  The present invention can be applied to volume reduction of packaging boxes. Although the packaging box of the present invention can be applied to packaging of daily necessities such as bathing agents and detergents, typically, the packaging box is used in various large and small packaging boxes containing primary packaged foods and foods consumed at home. It is preferably applied.

DESCRIPTION OF SYMBOLS 100 Packaging box of 1st Example 200 Packaging box of 2nd Example 300 Packaging box of 3rd Example 400 Packaging box of 4th Example 2 Front surface 4 Rear surface 6 Right side surface 8 Left side surface 40 Linear first slit 42 Non-linear second slit 44 Lip (tongue piece)
L1 predetermined distance Sa side area

Claims (4)

A packaging box having a front surface, a rear surface, left and right side surfaces, and upper and lower end surfaces, the front surface and the rear surface having a common rectangular shape,
A first slit formed on the front surface or the back surface and extending linearly;
A second slit formed on the back surface or the front surface and corresponding to the first slit and extending non-linearly;
The second slit is disposed at a position accessible by a thumb with a nail when performing an operation of manually pressing the fold of the packaging box to crush the packaging box, and the first slit, The second slit is disposed at a position that is aligned with each other when the packaging box is crushed back and forth,
A packaging box, wherein a lip formed by pushing down the second slit with a clawed thumb passes through the first slit so that the front surface and the back surface are locked with each other.   The packaging box according to claim 1, wherein the first slit is formed in a side edge of the front surface. The first slit is formed in a side region defined within a predetermined distance from the side edge of the front surface toward the center in the width direction of the front surface,
The packaging box according to claim 2, wherein the predetermined distance is a distance that a thumb with a claw can reach when performing an operation of pressing the fold of the packaging box by hand.   The packaging box as described in any one of Claims 1-3 which is a box which accommodates the food or foodstuff in which the said packaging box was primarily packaged.

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