JP2015110446A - Box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a box which can be easily opened, has high strength, and looks fine.SOLUTION: A box includes a first separation appointment line 31 which passes through a first point 25 of a first center line 21 of a first wall surface 11 and obliquely crosses the first center line 21, a pair of notches 39a and 39b which connect to both respective ends of the first separation appointment line 31 and are provided in equal distances d from the first point 25, and second separation appointment lines 32a and 32b which connect the pair of notches 39a and 39b to opening points 26a and 26b on a pair of sides 52, respectively.

Description

  The present invention relates to a box capable of opening at least one surface.

  Patent Document 1 discloses a packaging box that can be reliably opened over two wall surfaces without impairing the appearance and rigidity. This packaging box is a packaging box made of corrugated paper with a center liner disposed between the front liner and the back liner, and the first wall (side wall) is provided with cut portions and non-cut portions alternately, A first breaking means having a first breaking line (first piece zipper) having an end portion intersecting with the folding line as a non-cutting portion is provided, and the second wall (top wall) is continuous with the first breaking line. The cut portion and the non-cut portion are alternately provided in the first portion, and after the cardboard paper constituting the first wall is broken along the first breaking means, the cardboard paper constituting the second wall can be subsequently broken. A second break means having two break lines (second piece zipper) is provided, and a half cut line obtained by cutting the back liner is provided at an end portion intersecting with the first break line of the folding line.

JP 2012-240736 A

  There is a demand for a box that can be easily opened and has high strength and good appearance.

  One embodiment of the present invention includes a first separation reserved line that passes through the first point of the first center line of the first wall surface and obliquely intersects the first center line, and the first separation reserved line A pair of cutouts connected to both ends and provided at the same distance from the first point, and on the first wall surface where the distance from the pair of cutouts and the first point is greater than the pair of cutouts. A pair of second separation reservation lines that connect the pair of opening points. The pair of second separation reservation lines includes a symmetrical shape around the first point. The pair of opening points may be equidistant from the first point, and in this case, the second separation reserved line has a symmetrical shape (point symmetry) around the first point.

  A typical box is a packaging box or cardboard box used for packing and transportation. By pulling the two notches with fingers, for example, thumbs, and pulling them in different directions, at least a part of the first wall surface is centered on the first center line and the first separation reserved line and the first notch It is separated into two (left and right) flaps formed by two separate reserved lines and opened. Therefore, at least a part of the first wall surface can be easily opened.

  Further, the first separation reserved line forming the flap is provided so as to intersect with the first center line obliquely. Therefore, the box can be opened left and right with the first center line as the center, but even if a load is applied or pulled along the first center line, the box is along the first center line. Difficult to dent or deform. This first separation reservation line is the center of the separation reservation line for opening the box and is a conspicuous line for placing a hand, and is arranged obliquely with respect to the first center line. Therefore, the entire separation reservation line contributes as a design on the first wall surface. In addition, the first and second separation reserved lines are symmetrical around the first point, are easily opened with equal force on the left and right, and are innovative in design but harmonious. It becomes. Therefore, it is possible to provide a box that is easy to open, has high strength, and has a good appearance.

In this box, the first distance L1 from both sides (both edges, both ends) of the first wall surface parallel to the first center line to each of the pair of (two) notches is the following equation (1): It is desirable to satisfy. However, the unit is mm.
10 ≦ L1 ≦ 200 (1)

  If the first distance L1 is within the range of the expression (1), a thumb can be put in each of the two notches, and a portion other than the thumb of the hand can be hung on each of both sides of the first wall surface of the box. Therefore, at least a part of the first wall surface can be easily opened by turning the hand around the portion of the hand box other than the thumb as a center (fulcrum). The lower limit of the formula (1) is desirably 70 mm, and more preferably 90 mm. The upper limit of the formula (1) is desirably 120 mm, and more preferably 100 mm. With the hands spread out, the two flaps formed by the first and second separation reserved lines can be opened with the thumb in the notch and the part or finger on the opposite side of the hand as a fulcrum. Because you can use your hands widely, you can easily open the flap with relatively little force.

  A typical first point that is the center of two notches is the midpoint of the first centerline. The first wall surface can be opened around the midpoint of the first center line. The pair of unsealing points are preferably located on a pair of opposite sides of the first wall surface. The pair of sides may be sides parallel to the first center line, or may be sides that intersect the first center line perpendicularly or obliquely. The first wall surface can be opened by the first and second separation reserved lines. If the pair of sides is a side in contact with both ends of the first center line, the entire first wall surface can be opened.

  The pair of opening points may be located on the first center line, for example, at both ends of the first center line. A flap that opens to the left and right with respect to the first center line can be formed. The pair of unsealing points may be at positions deviating from the first center line. In the case where the width of the design is widened and the side wall surface is also separated, there is an advantage that the separation reserved line appearing on the side wall surface can be shortened.

  The second separation reserved line may include a curve. Design is improved. At the same time, it is possible to provide the second separation reserved line while avoiding a portion that is susceptible to damage during conveyance. For example, when the strength of the first wall surface is also required, such as when sucking and transporting the first wall surface, a curved line that protrudes outward from the first center line is formed on the second separation reserved line. It is preferable to include.

  The separation reservation line may be a perforation or a break reservation line that is connected intermittently, may be a line that has already been disconnected, or may be a line that is not connected when the box is manufactured. . It is desirable that the second separation reserved line includes a break reserved line. The second separation reserved line is likely to have a longer distance than the first separation reserved line, and the strength of the first wall surface before opening can be ensured by including the fracture reserved line.

  The box is connected to the opening point and has a third separation reservation line extending along a pair of sides, and is separated by the first separation reservation line, the second separation reservation line, and the third separation reservation line. It is desirable for the flap to open to the left and right with respect to the first centerline. The third separation reserved line may be provided on a pair of sides. Since there is no separation reservation line on the side wall surface, the strength of the side wall surface can be improved. The third separation reserved line may include a portion extending in parallel with the pair of sides at a position away from the pair of sides. Since the side wall surface is also opened at the same time, it is easy to see the products packed in the box.

  The third separation reserved line may include a fourth separation reserved line that separates the side wall surface connected to the first wall surface via a pair of sides. The box can be opened by separating the first wall surface including all or part of the side wall surface. Products or the like packed in a box can be stored or displayed in a more visible state while still in the box.

  Further, it is desirable that the box further has a fifth separation reserved line that is connected to the third separation reserved line and is provided so that the separated flap is separated from other parts of the box. The separated flap can be separated from the box, and the remaining part of the box can be used as a shelf or tray for displaying goods.

The perspective view which shows the external appearance of a packaging box. The figure which shows a mode that the top | upper surface of the packaging box was seen from upper direction. The figure which shows the state which expand | deployed the packaging box. The figure which shows the state which put both hands on the storage box. The figure which shows a mode that the top | upper surface of the packaging box has begun to open. The figure which shows the state which cut | disconnected the flap from the packaging box. The perspective view which shows the external appearance of a different packaging box. The figure which shows a mode that the top | upper surface of a different packaging box was seen from upper direction. The figure which expanded the different packaging box. The figure which shows a mode that the top | upper surface of a different packaging box has begun to open. The figure which shows the state which cut | disconnected the flap from the different packaging box. Furthermore, the perspective view which shows the external appearance of a different packaging box. Furthermore, the figure which expanded the different packaging box. The perspective view which shows the external appearance of a different packaging box. The figure which looked at the top of a different packaging box from the upper part. The figure which shows a mode that the top | upper surface of a different packaging box has begun to open. The figure which shows the state which cut | disconnected the flap from the different packaging box. Furthermore, the perspective view which shows the external appearance of a different packaging box. Furthermore, the top view which shows a different packaging box. Furthermore, the top view which shows a different packaging box.

  FIG. 1 shows an appearance of a packaging box (box) 1 using a perspective view, and FIG. 2 shows a top surface (first wall surface) 11 of the packaging box 1 as viewed from above. Moreover, the state which expanded the packaging box 1 is shown in FIG. Note that the alternate long and short dash line is an auxiliary line for explanation and does not actually appear in the packaging box 1. The same applies to other drawings.

  The box 1 has a rectangular parallelepiped shape and has rectangular top surfaces (upper surface, first wall surface) 11 and bottom surface (lower surface) 12, and side surfaces (side wall surfaces) 13, 14, 15 connecting the top surface 11 and the bottom surface 12. And 16. In this example, the box 1 is a cardboard box, but any material may be used as long as it has a certain level of strength and waist such as paper or plastic and can be opened by hand. The top surface 11 is provided with a separation reservation line 30 extending along a longitudinal center line (first center line) 21, and the separation reservation line 30 divides the top surface 11 into two left and right flaps 19 a and 19 b. The top surface 11 can be opened in a direction (left-right direction) orthogonal to the center line 21.

  The separation reservation line 30 is formed by a cut, a notch, a break reservation line, a line obtained by combining parts that have been separated in advance, and the like, and is combined in consideration of the strength of the box, ease of separation when opened, and the like. . The break reservation line includes a perforation line, a line that is provided with a plurality of cuts obliquely with respect to the reservation line, and facilitates breakage, a zipper, and the like. Accordingly, the types of lines and their combinations described below are merely examples, and the present invention is not limited to the examples shown below.

  The separation reservation line 30 passes through a midpoint (first point) 25 of the center line 21 of the top surface 11 and obliquely intersects the center line 21, and a first separation reservation line 31. 2 (a pair) of notches 39a and 39b provided at positions where the distance d1 from the middle point 25 is equal, and the distance d2 from the two notches 39a and 39b and the middle point 25 are distances. A pair of (two) second separation reserved lines 32a and 32b connecting a pair of opening points 26a and 26b on the top surface 11 larger than d1 are included.

  In this box 1, the pair (two) of unsealing points 26 a and 26 b are located at a pair of sides (sides in the short direction) 52 perpendicular to both ends of the center line 21, and the unsealing points 26 a and 26 and the midpoint 25 are located. The distance d2 is equal, and the separation reservation line 30 on the top surface 11 including the two second separation reservation lines 32a and 32b has a rotationally symmetric (180 degree symmetry) shape around the midpoint 25. The separation reservation line 30 is provided so as to cross the top surface 11.

The first separation reserved line 31 is a cut that obliquely intersects with the center line 21 to form an angle θ. It is desirable that the angle θ satisfies the following expression (2).
10 ≦ θ ≦ 80 (2)

  By making the first separation reserved line 31 into a cut, the force required at the initial stage of opening is reduced. At the same time, by causing the first separation reserved line 31 to obliquely intersect the center line 21, the force applied to the separation reserved line 31 when a load is applied to the top surface 11 can be distributed in the four sides of the top surface 11, Using the strength of the waist of the corrugated board of the top surface 11, it is possible to suppress the spread of the cut.

  The two cutouts 39a and 39b provided at both ends of the first separation reserved line 31 are semicircular cutouts convex toward the center line 21, and a thumb is inserted when the top surface 11 is opened. Thus, the shape and size are easy to pull up the flaps 19a and 19b. The two notches 39a and 39b are arranged at an equal distance d1 with respect to the midpoint 25, and both sides (longitudinal sides) 51 of the top surface 11 along the center line (center line extending in the longitudinal direction) 21 and The distance L1 satisfies the above-described equation (1), and the flaps 19a and 19b can be easily lifted with both hands by placing a part of both hands on both sides 51 or both side walls 15 and 16 on the outside.

The second distance L2 along the center line 21 of the two notches 39a and 39b preferably satisfies the following expression (3). However, the unit is mm.
10 ≦ L2 ≦ 200 (3)

  If the second distance L2 is within the range of the expression (3), the distance between both hands is not too close or too far, and the flaps 19a and 19b can be easily lifted using the notches 39a and 39b with both hands. The lower limit of equation (3) is preferably 20 mm, the upper limit of equation (3) is preferably 100 mm, and more preferably 50 mm. It is easy to set the notches 39a and 39b without causing both hands to interfere, and it is easy to apply force to the notches 39a and 39b by bringing both hands close to each other.

  The second separation reserved lines 32a and 32b that connect the two cutouts 39a and 39b and the unsealing points 26a and 26b on both sides 52, respectively, are break reserved lines. This is a line that diagonally connects the notches 39a and 39b and the unsealing points 26a and 26b at positions deviating from the center line 21 including curves and straight lines. In the present example, the second separation reserved lines 32 a and 32 b each include a convex curve outward from the center line 21. In the second separation reserved lines 32 a and 32 b, the central portion of the top surface 11 that is easy to be recessed is arranged obliquely with respect to the center line 21, similarly to the first separation reserved line 31. The force applied to the separation reservation lines 32 a and 32 b when a load is applied to the top surface 11 can be distributed in the four sides of the top surface 11. For this reason, the separation reservation lines 32a and 32b are prevented from being unexpectedly divided by utilizing the strength of the waist of the cardboard plate of the top surface 11.

  Further, by arranging these separation reserved lines 31, 32a and 32b arranged on the top surface 11 obliquely with respect to the center line 21, so as to form a curve or at an angle, The separation reservation lines 31, 32a, and 32b can be arranged with good appearance, and the box 1 excellent in aesthetic appearance can be provided. For example, in the box 1 of this example, it can be said that the separation reservation lines 31, 32a and 32b are arranged in an approximately S shape. The second separation reserved lines 32a and 32b may be entirely straight or arranged in a lightning bolt or Z-shape. Furthermore, the second separation reserved lines 32a and 32b may be curves having a smaller curvature than in this example, may be curves or arcs having a large curvature, may be zigzag or snake-like curved lines, and are combinations of straight lines. It may be.

  In addition, the separation reservation lines 31, 32a and 32b arranged on the top surface 11 can be designed according to transportation convenience. In the example of the box 1, by separating the second separation reservation lines 32 a and 32 b from the center line 21 of the top surface 11, it is possible to secure a space in which a suction cup for conveyance is attached along the center line 21. . At the same time, a unique aesthetic appearance is formed by making the line bent largely outward with respect to the center line 21.

  The second separation reservation lines 32a and 32b of the box 1 are break reservation lines (break lines), and a plurality of cuts are intermittently formed at an appropriate pitch in the break direction. The shape of the cut is not limited to that having an angle with respect to the breaking direction as in this example, and may be a broken line in which cuts or holes are linearly arranged like perforations. In this box 1, since the second separation reserved lines 32a and 32b have a relatively long design, the second separation reserved lines 32a and 32b are used as break reserved lines so that the strength of the box 1 is secured. Yes.

  The box 1 further includes third separation reserved lines 33 connected to the unsealing points 26 a and 26 b and extending in the direction of both sides 51 parallel to the center line 21 along both sides 52 perpendicular to the center line 21. In this box 1, both unsealing points 26 a and 26 b are in the vicinity of both sides 51 off the center line 21, and the third separation reserved line 33 is a side wall surface (side wall in the short direction) connected to both ends of the center line 21. ) It is constituted by fourth separation reserved lines 34a, 34b, 34c and 34d for separating each of 13 and 14 vertically.

  Since the side wall surfaces 13 and 14 have the same configuration, the side wall surface 13 will be described. The fourth separation reserved line 34 a extends from the opening point 26 a along the side 52 in a direction perpendicular to the center line 21, and is a separation reserved line for separating the top surface 11 from the side wall surface 13. The fourth separation reserved line 34b extends from the unsealing point 26a so as to divide the side wall surface 13 in the vertical direction (vertical direction), and the side of the side wall surface 13 so as to divide the side wall surface 13 in the horizontal direction (horizontal direction). It is connected to other fourth separation reserved lines 34c and 34d provided along the direction center line. By employing such a combination of separation reserved lines, it is not necessary to provide a break line in one inner flap 13c of the side wall surface 13 to be described later, and the strength can be secured in a state where the side wall surface 13 can be divided vertically. I have to.

  More specifically, as shown in FIG. 3, the separation reservation line 34 a is located on the side 52 where the upper flap 13 a of the side wall surface 13 (the upper flap 14 a of the side wall surface 14) overlaps with the inner flap 13 c (14 c). A break reservation line (perforation) provided so as to be divided horizontally along the line is included. The separation reserved line 34b is a break reserved line (perforation) provided to divide the upper flap 13a (14a) in the vertical direction along the inner flap 13c of the sidewall surface 13 (inner flap 14c of the sidewall surface 14). Including. The separation reserved line 34c is formed by a combination of edges of the upper flap 13a and the lower flap 13b (the upper flap 14a and the lower flap 14b of the side wall surface 14) of the side wall surface 13, and the edges are not joined. It has become a notch. The separation reserved line 34d includes a fracture reserved line (perforation) provided so as to divide the inner flap 13d of the side wall surface 13 (the inner flap 14d of the side wall surface 14) in the lateral direction.

  The third separation reserved line 33 may separate the side wall surfaces 13 and 14 vertically, and separates the boundary (side, ridge line) 52 between the top surface 11 and the side wall surfaces 13 and 14. Alternatively, the top surface 11 may be separated from the center line 21 toward both sides 51. There are various combinations of fourth separation reserved lines 34a, 34b, 34c and 34d for separating the side wall surfaces 13 and 14 in the vertical direction, and may be T-shaped, mountain-shaped or wave-shaped.

  The box 1 is further connected to a third separation reserved line 33 on both side walls 15 and 16 connected to both sides 51 of the top surface 11, and a fifth separation reserved line 35a for separating the side walls 15 and 16 up and down and 35b is included. In this box 1, the fifth separation reserved lines 35a and 35b are fracture reserved lines, and the fifth separation reserved line 35b is a flap 19b when the top surface 11 is separated into left and right flaps 19a and 19b and opened. Also serves as a fold line. The outer flap 17 constituting the side wall surface 16 is located closer to the top surface 11 than the separation reservation line 35 of the side wall surface 16, and the outer flap 17 is separated together with the top surface 11.

  One side wall (longitudinal side wall) 15 may be insufficient in strength relative to the other side wall 16 provided with the outer flap 17. For this reason, the fifth separation reserved line 35a provided on the side wall 15 is not made a straight line, so that no swelling occurs. Further, the fifth separation reserved line 35a is a combination of a line 35d extending downward and a line 35c curved upward, and prevents the fifth separation reserved line 35a from becoming a monotonous straight line or curve, The fifth separation reserved line 35a is set to fit in the upper half of the side wall 15.

  FIG. 4 shows how the top surface 11 is opened. The thumbs of both hands 9 are put into the two notches 39a and 39b, and palms or other fingers are put on both edges 51 to turn both hands 9 left and right. This box 1 is designed to grip two notches 39a and 39b separated from the left and right sides 51 with respect to the center line 21 (opening points 26a and 26b) without crossing the left and right thumbs. Depending on the width and shape of the box, the left and right thumbs may intersect, or both hands 9 may intersect and the two notches 39a and 39b may be gripped.

  FIG. 5 shows a state in which the top surface 11 is separated into left and right flaps 19a and 19b and opened. In the box 1, the top half 11 and the upper half 5 of the side walls 13 and 14 have a first separation reservation line 31, a second separation reservation line 32, and a third separation reservation line 33 (specifically, a separation reservation line). Lines 32 a, 32 b, 34 a, 34 b, 34 c and 34 d) are separated from the lower half 6, their peripheries are formed by the separation reserved lines 30, and S-shaped sides ( Left and right flaps 19a and 19b are formed. Further, the box 1 is configured such that the left and right flaps 19a and 19b of the upper half 5 pivot left and right (upward) with respect to the lower half 6 about the fifth separation reserved lines 35a and 35b (branch lines). Opened. The separation reserved line 34c, which is a part of the third separation reserved line 33, extends in parallel to the side 52 at a position away from the side 52 in the short direction so as to divide the side wall 13b. Therefore, when the flaps 19a and 19b are separated, a part of the side walls 13 and 14 is separated vertically, and the side walls 13 and 14 are also opened together with the top surface 11.

  In this box 1, the notches 39a and 39b into which the thumb is inserted when opened can be set to a width that can be easily handled even by a female worker with a relatively small hand. Also, the thumb is notched 39a and 39b, the other finger or palm of the hand is hung on both sides 51, and the arm is spread to apply the strength or weight of the arm. Even a woman or a child can easily open the top surface 11. It is also possible to open by moving both hands 9 to rotate. It is also possible to put a jig in the notches 39a and 39b and open the notch.

  The left and right flaps 19a and 19b are basically (substantially) symmetrical with respect to the center line 21 and the midpoint 25 except for the vicinity of the fifth separation reserved lines 35a and 35b. Also, the shape and length of the separation reserved line for separating 19b and 19b are symmetrical and equal. Therefore, when opening, either of the left and right flaps 19a and 19b is hardly partly separated or hardly separated from the separation reserved line, and the top surface (top plate) 11 has a predetermined Separated into shapes. Further, the left and right flaps 19a and 19b formed by opening are curved in an S shape, have a good appearance, and are safe because there are almost no sharp corners, and are easy to handle.

  FIG. 6 shows a state in which the flaps 19a and 19b are separated from the lower half 6 of the box 1 along the fifth separation reservation lines 35a and 35b. The lower half 6 of the box 1 can be used as a tray or shelf for displaying products. The box 1 has a system in which the upper half 5 is divided into two flaps 19 a and 19 b and separated from the lower half 6. Therefore, compared with the method of dividing the box up and down with a zipper, there is no generation of extra garbage. Further, the upper half 5 is divided into the flaps 19a and 19b, turned along the fifth separation reserved lines 35a and 35b, and creased, and then the flaps 19a and 19b are connected to the fifth separation reserved lines 35a and 35b. Separate along. Therefore, the cut in the lower half 6 is relatively clean along the separation reservation lines 35a and 35b, and can be used as it is as a tray for displaying products.

  In FIG. 7, the external appearance of the different packaging box (box) 1 is shown using the perspective view, and the mode that the top surface (first wall surface) 11 of the packaging box 1 is viewed from above is shown in FIG. Moreover, the state which expanded the packaging box 1 is shown in FIG. This box 1 is also a rectangular parallelepiped and has rectangular top surfaces (upper surface, first wall surface) 11 and bottom surface (lower surface) 12, and side surfaces (side wall surfaces) 13, 14, 15 connecting the top surface 11 and bottom surface 12. 16 and the like.

  The box 1 also includes a first separation reserved line 31 that separates the top surface 11 into two left and right flaps 19a and 19b, two notches 39a and 39b that are connected to both ends of the first separation reserved line 31, and 2 It includes a pair of second separation reserved lines 32a and 32b that connect the two notches 39a and 39b and a pair of opening points 26a and 26b having the same distance d2 from the center point (midpoint) 25, respectively.

  This box 1 includes third separation reserved lines 33 respectively connected to the unsealing points 26a and 26b located on the side 52 in the short direction, and in this box 1, the third separation reserved line 33 is 52 is provided so as to coincide with 52. The third separation reserved line 33 is a break reserved line (sewing line). The unsealing points 26a and 26b on the side 52 are at positions shifted in a symmetric direction with respect to the center line 21, and the second separation reserved lines 32a and 32b are third separation reserved lines 33 that overlap the side 52, respectively. On the other hand, the connection parts 32c and 32d connected smoothly in the direction of the center line 21 are included.

  The third separation reserved line 33 extends from the opening points 26a and 26b to the intersection with the side 51 in the direction of the center line 21, and extends from the opening points 26a and 26b to the opposite side of the center line 21. And a short separation reservation line 34g. The third separation reserved line 33 is smoothly connected to the long separation reserved line 34f via the connecting portions 32c and 32d, so that the force when opening the flaps 19a and 19b is somewhat difficult to separate. The separation reservation line 34f, which sometimes requires force, is first communicated, and the long separation reservation line 34f is first separated from the short separation reservation line 34g. The separation reserved line 34f and the separation reserved line 34g are separated from the side walls 13 and 14 with a time difference, whereby the flaps 19a and 19b can be opened more easily. The connecting portions 32c and 32d to the unsealing points 26a and 26b may be arcuate, may be other curved shapes, or may be linearly chamfered.

  In this box 1, the third separation reservation line 33 is provided so as to coincide with the side 52 in the short direction, and separation reservation lines are provided on the side walls 13 and 14 to separate the respective wall surfaces. It is not done. Therefore, the side walls 13 and 14 can provide the box 1 that is relatively strong against external impacts. Further, since the entire side walls 13 and 14 remain when the top plate 11 is separated, the product can be supported by the side walls 13 and 14 after the top plate 11 is separated, and the side walls 13 and 14 are transported as replacements. An easy-to-use box 1 can be provided.

  Similarly to the above, the box 1 includes fifth separation reserved lines 35a and 35b that are connected to the third separation reserved line 33 and divide the side wall surfaces 15 and 16 in the vertical direction. The fifth separation reservation line 35a is connected to the third separation reservation line 33 at a portion 35d extending obliquely. The linear fifth separation reservation line 35b is connected to the third separation reservation line 33 by a separation reservation line 35e disposed at a corner between the side walls. Therefore, also in this box 1, the flaps 19a and 19b of the top plate 11 are opened, and the flaps 19a and 19b can be separated from the box 1 by the fifth separation reserved lines 35a and 35b.

  FIG. 10 shows how the box 1 is opened. A thumb is put into the cutouts 39a and 39b of the box 1, the other finger or palm of the hand is put on both sides 51, and the top surface 11 is opened using the lever principle. First, the first separation reserved line 31 and the second separation reserved line 32 are separated, and the top surface 11 is divided into flaps 19a and 19b. Next, the longer separation reserved line 34f that is smoothly connected by the second separation reserved line 32 and the connecting portions 32c and 32d is opened. Further, when the flaps 19a and 19b are opened, the shorter separation reservation line 34g is opened. In the third separation reserved line 33, the longer separation reserved line 34f and the shorter separation reserved line 34g are separated in order, and the force applied to the third separation reserved line 33 can be divided. For this reason, when separating the third separation reservation line 33 that also serves as the short side 52, it is possible to make the separation reservation line having a high strength that requires a relatively strong force, and it is easy to ensure the strength of the box 1.

  FIG. 11 shows a state in which the flaps 19a and 19b are separated from the lower half 6 of the box 1 along the fifth separation reservation lines 35a, 35b and 35e. The lower half 6 of the box 1 can be used as a tray or shelf for displaying products. In this lower half part 6, since the side walls 13 and 14 are left without being separated, when the lower half part 6 is used as a tray or a shelf, it is possible to suppress the products from collapsing and scattering. Further, since the side wall 16 is linearly separated at a relatively low position by the fifth separation reservation line 35b, even if the side walls 13 and 14 are left unseparated, display or take-out of products or the like It has a structure that does not get in the way.

  FIG. 12 shows an appearance of a different packaging box (box) 1 using a perspective view, and FIG. 13 shows a state where the packaging box 1 is developed. The box 1 is also a rectangular parallelepiped, and includes a rectangular top surface 11 and bottom surface 12, and side surfaces 13, 14, 15 and 16 connecting the top surface 11 and bottom surface 12. Further, the box 1 also includes a first separation reserved line 31 that separates the top surface 11 into two left and right flaps 19a and 19b, and two notches 39a and 39b that are connected to both ends of the first separation reserved line 31. It includes a pair of second separation reserved lines 32a and 32b that connect the two notches 39a and 39b and a pair of opening points 26a and 26b having the same distance d2 from the center point 25, respectively.

  This box 1 also includes third separation reserved lines 33 respectively connected to the unsealing points 26 a and 26 b positioned on the side 52 in the short direction, and a part of the third separation reserved line 33 coincides with the side 52. It is provided to do. Also in this box 1, the unsealing points 26 a and 26 b on the side 52 are at positions shifted in a symmetric direction with respect to the center line 21, and the second separation reserved lines 32 a and 32 b are overlapped with the side 52, respectively. 3 separation reserved lines 33, including connection portions 32c and 32d smoothly connected in the direction of the center line 21.

  The third separation reservation line 33 includes a long separation reservation line 34f extending from the opening points 26a and 26b along the side 52 in the direction of the center line 21 and a short separation reservation extending from the opening point 26b to the opposite side of the center line 21. Line 34g. The separation reservation line 34f extending along the side 52 on the side wall 14 of the box 1 has the same distance from the side 51 on the side wall 15 to the side 51 on the side wall 15 from the opening point 26b. Up to point 26c. The point 26c may be arranged at a position on the side 51 different from the distance between the opening point 26a and the side 51 on the side wall 15 side.

  Further, the third separation reserved line 33 is connected to the right flap 19a on the right flap 19a through a part of the connecting portion 32c from the opening point 26a and obliquely and substantially linearly connected to the side 51 on the side wall 15 side. 34h and a separation reserved line 34i that is obliquely connected linearly from the point 26c to the side 51 on the side wall 15 side. The separation reservation line 34h may be arranged so as to be connected to the side 51 on the side wall 15 side through a part of the side 52 on the side wall 13 side from the opening point 26a. Separation reserved lines 34h and 34i may be arcuate, or may be another curve, a combination of a straight line and a curve, or the like. The third separation reserved lines 34h and 34i are provided so that the width of the flap 19a is narrowed from both sides 52 toward the side 51 on the side wall 15 side. For this reason, the force which opens the flap 19a tends to concentrate toward the edge | side 51 by the side of the side wall 15 where distance is separated from the notch 39a and force becomes difficult to enter. Therefore, it is possible to provide the box 1 that makes it easier to open the flap 19a.

  In the box 1, when the flaps 19a and 19b are opened along the first separation reserved line 31, the second separation reserved line 32, and the third separation reserved line 33, parts 11a and 11b of the top surface 11 are They remain in a triangular shape without being separated from the side walls 13, 14 and 15. Therefore, the side walls 13 and 14 and the side wall 15 are connected via a part (corner part) 11a and 11b of the top surface 11, and compared with the forces in the vertical direction and the horizontal direction applied to the box 1. Box 1 with high mechanical durability can be provided.

  The box 1 includes fifth separation reserved lines 35f and 35b that are connected to the third separation reserved line 33 and divide the flaps 19a and 19b from the lower half 6 respectively. The fifth separation reserved line 35f is connected to the fourth separation reserved lines 34h and 34i and is provided so as to coincide with the side 51 on the side surface 15 side. The fifth separation reserved line 35f is a break reserved line (sewing line). For this reason, the side wall 15 is not provided with a separation reservation line that separates the side surfaces. Therefore, in the same manner as the above-mentioned box, the box 1 provides the box 1 in which the side walls 13, 14 and 16 are relatively resistant to external impacts, and the side wall 15 is also relatively resistant to external impacts. it can. For this reason, even when the boxes 1 are stacked one above the other, it is difficult for the torso to occur, and the collapse of the load during transfer or storage can be suppressed.

  Also in this box 1, the flaps 19a and 19b of the top plate 11 are opened, and the flaps 19a and 19b can be separated from the box 1 by the fifth separation reserved lines 35f, 35b and 35e. Even after the flaps 19a and 19b are separated from the box 1, the corners 11a and 11b of the top surface 11 remain together with the entire side walls 13, 14 and 15, so that the side walls 13, 14 and 15 is connected relatively firmly. Therefore, the lower half 6 can be used as a display container for transporting products with high strength as a tray or displaying products that are easy to collapse, and the lower half 6 can be deformed and the products can collapse. Can be suppressed. Even if the entire side walls 13, 14 and 15 and the corner portions 11a and 11b remain unseparated, the side wall 16 is linearly separated at a relatively low position by the fifth separation reserved line 35b. Therefore, the box 1 (lower half part 6) that is practical and good-looking can be provided with little possibility of hindrance when displaying and taking out products and the like.

  FIG. 14 shows the appearance of a further different packaging box (box) 1 using a perspective view, and FIG. 15 shows the top surface (first wall surface) 11 of the packaging box 1 as seen from above. . The box 1 is also a rectangular parallelepiped, and has a rectangular top surface (upper surface, first wall surface) 11 and bottom surface (lower surface) 12, and side surfaces (side wall surfaces) 13, 14, 15 that connect the top surface 11 and the bottom surface 12. And 16. In the box 1, the unsealing points 26 a and 26 b are both ends of the center line 21, and the separation reservation line 30 is provided so as to cross the top surface 11 along the center line 21. In the present example, the second separation reserved lines 32 a and 32 b are curves that are convex outward with respect to the center line 21, respectively, and are arranged obliquely with respect to the center line 21. When applied, the force applied to the separation reservation lines 32 a and 32 b can be distributed in the four sides of the top surface 11.

  The box 1 further includes third separation reserved lines 33 that are respectively connected to the unsealing points 26 a and 26 b and extend from the center line 21 in the direction of both sides 51. In this box 1, both unsealing points 26 a and 26 b are both ends of the center line 21, and the third separation reserved line 33 separates the side wall surfaces 13 and 14 connected to both ends of the center line 21 in a T shape. The fourth separation reserved lines 34b, 34c and 34d are configured. The fourth separation reserved line 34b is provided along the longitudinal center line of the sidewall surface 13 so as to divide the sidewall surface 13 along the center line 21 in the longitudinal direction (vertical direction). The reserved lines 34c and 34d are provided along the lateral center line of the sidewall surface 13 so as to divide the sidewall surface 13 in the lateral direction (left-right direction). The fourth separation reserved line 34d is a reserved line for separating the inner flaps 13c and 13d vertically.

  The box 1 further includes a fifth separation reserved line 35 that vertically separates the side wall surfaces 15 and 16 in the longitudinal direction. In this example, the fifth separation reserved line 35 is designed linearly. .

  FIG. 16 shows a state in which the top surface 11 is separated into left and right flaps 19a and 19b and opened. FIG. 17 shows a state in which the flaps 19 a and 19 b are separated from the lower half 6 of the box 1 along the fifth separation reservation line 35. The lower half 6 of the box 1 can be used as a tray or shelf for displaying products. The flaps 19 a and 19 b are separated along the fifth separation reserved line 35, and the cut in the lower half 6 is straight along the separation reserved line 35.

  FIG. 18 is a perspective view showing different examples of boxes. In this box 2, the second separation reserved lines 32a and 32b are relatively close to the center line 21, and are constituted by curves having a small curvature. The third separation reserved line 33 includes a fourth separation reserved line 34e provided so as to divide the side wall surface 13 into a mountain shape. In this way, the design of the separation reserved lines 31, 32a and 32b provided on the top surface 11 and the design of the third separation reserved line 33 provided on the side wall surfaces 13 and 14 can be changed flexibly.

  FIG. 19 shows still another example of the box. This box 3 is of a type that is opened by opening a portion shifted above the top surface 11 to the left and right. In this box 3, the first point 65 that is the center of the separation reservation line 30 is set so as to be shifted upward from the middle point of the center line 21, and the unsealing points 66 a and 66 b are from the first point 65. The distance is set inward from both ends of the center line 21. The third separation reserved line 33 connected to the unsealing points 66a and 66b is disposed on the top surface 11 and extends in the direction of both sides 51 from the first center line 21 in parallel with the side 52 orthogonal to the center line 21. . The first separation reservation line 31 and the second separation reservation lines 32a and 32b arranged on the top surface 11 are linear break reservation lines (perforations).

  FIG. 20 shows still another example of the box. The separation reservation line 30 of the box 3 includes a symmetric shape around the first point 65 (around the first point 65), but from the first point 65 to the respective unsealing points 66a and 66b. The distances d21 and d22 are not equal. Therefore, the separation reserved line 30 is asymmetric as a whole. For this reason, the box 3 provided with the separation reservation line 30 of a more flexible design can be provided.

  In addition, although said box has shown the example which isolate | separates a top surface into two flaps and opens it, the surface to open may be any of a side wall surface not only a top surface. A box may be disassembled vertically by separating a side wall surface by providing a plurality of wall surfaces, for example, side wall surfaces facing each other, with a notch for inserting a finger and a separation reservation line disposed obliquely with respect to the center line. The box is not limited to a square or a rectangular parallelepiped, and may be another polygonal box or a box having a curved surface. The material of the box is not limited to cardboard, but may be other paper or resin box.

1 box (cardboard box)
30 separate reserved line

Claims (15)

A first separation reserved line passing through a first point of the first center line of the first wall surface and obliquely intersecting the first center line;
A pair of notches respectively connected to both ends of the first separation reserved line and provided at positions equal in distance from the first point;
A pair of second separation reservation lines that connect the pair of notches and the pair of opening points on the first wall surface that are separated from the pair of notches by the distance from the first point, respectively. And the second separation reserved line includes a symmetrical shape around the first point. The box according to claim 1, wherein a first distance L1 from both sides of the first wall surface parallel to the first center line to each of the pair of notches satisfies the following condition. However, the unit is mm.
10 ≦ L1 ≦ 200   The box according to claim 1 or 2, wherein the pair of opening points are equidistant from the first point.   4. The box according to claim 1, wherein the pair of second separation reservation lines includes a curve.   5. The box according to claim 1, wherein the pair of second separation reservation lines includes a curved line that protrudes outward from the first center line. 6.   6. The box according to claim 1, wherein the pair of second separation reservation lines includes a break reservation line.   7. The box according to claim 1, wherein the pair of unsealing points is located on the first center line.   The box according to any one of claims 1 to 6, wherein the pair of opening points are located away from the first center line.   9. The box according to claim 1, wherein the first point is a midpoint.   10. The box according to claim 9, wherein the pair of opening points are respectively located on a pair of opposing sides of the first wall surface.   The first separation reserved line, the second separation reserved line, and the third separation reserved line according to claim 10, further comprising a third separation reserved line connected to the opening point and extending along the pair of sides. A box in which a flap separated by a separation reserved line opens to the left and right with respect to the first center line.   12. The box according to claim 11, wherein the third separation reserved line is provided on the pair of sides.   12. The box according to claim 11, wherein the third separation reserved line includes a portion extending in parallel with the pair of sides at a position away from the pair of sides.   14. The third separation reservation line according to claim 11, wherein the third separation reservation line includes a fourth separation reservation line that separates a pair of side wall surfaces connected to the first wall surface via the pair of sides. ,box.   In any one of Claims 11 thru / or 14, it has the 5th separation reservation line provided so that it might connect with the 3rd separation reservation line, and the separated flap may be separated from other parts of the box, box.

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