JP2017095133A - Packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing box capable of improving unpacking property and transportability.SOLUTION: A packing box 1 made of a corrugated fiberboard is provided with square cylindrical trunks 7, 61 extending from the outer edge of a bottom in a height direction and a rectangular top plate 9 closing the top edge of the trunks. The top plate 9 has: first breakable lines 40 respectively extending toward a pair of sides constituting the outer periphery of the top plate 9; second breakable lines 41, 42 respectively extending from the respective edge parts of the first breakable lines 40 to the other pair of sides constituting the outer periphery of the top plate 9; and a pair of finger hook holes 63, 64 capable of being hooked with a finger disposed so as to sandwich the first breakable lines 40 and have a predetermined clearance from the first breakable lines 40.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a packaging box formed of corrugated paperboard.

  2. Description of the Related Art Conventionally, a body portion formed by a pair of alternately arranged first side plates and second side plates is provided, and a closing portion that closes both ends of the body portion is connected to upper and lower edges of each first side plate. A packaging box is known that is formed by polymerizing and bonding the outer flaps to inner flaps connected to the upper and lower edges of each second side plate (see Patent Document 1).

  This packaging box is generally said to be a wrap-around case, and it is assembled by wrapping the item to be wrapped with each side plate. At that time, the outer flap is bonded to the inner flap, and the item to be packed is stored as soon as the assembly is completed. It becomes a state. For this reason, in general, it is suitable for packaging a large number of packages of a certain shape, such as copy paper and beverage cans, in close contact with each other. The integrated packaging state of the package is firmly maintained.

  In addition, since the outer flap and the inner flap are relatively firmly bonded to each other in the packaging box, the body portion may be broken so that the outer flap and the inner flap can be unpacked without performing a peeling operation. It may be formed as possible.

  Specifically, as a breakable packaging box of this type, a vertically breakable line that vertically divides the upper side plate of the body portion into a substantially half, and a right edge of the side plate from an upper end and a lower end of the vertically breakable line And a packaging box in which a laterally breakable line extending to the left edge and a bent portion that allows the side plate to be folded inward at the intersection of the longitudinally breakable line and the laterally breakable line are formed. It is known (see Patent Document 2).

  When unpacking this packaging box, bend the bent part inwardly, insert a finger into the hole formed in the side plate, pull the side plate and pull it into a vertically breakable line and a laterally breakable line By simultaneously breaking along, the packaging box is unpacked so that the upper surface of the trunk portion opens.

JP 2006-273359 A Utility Model Registration No. 3073932

  However, in this type of packaging box, the corners of the side plate must be picked with fingers and broken along the longitudinal breakable line and the lateral breakable line at the same time. There is an inconvenience that it is difficult.

  Moreover, in this type of packaging box, as described above, a large number of copy papers, beverage cans, etc. are packaged in close contact with each other, so that the weight is large. However, even if a grip portion is provided on the side plate, it is not possible to push a finger into the grip portion, and it is not easy to carry.

  In view of the above points, the present invention firstly aims to provide a packaging box that can improve unpacking properties, and secondly, to provide a packaging box that can improve transportability. Objective.

  In order to achieve such an object, a packaging box of the present invention is made of a corrugated cardboard provided with a rectangular cylindrical trunk extending in the height direction from the outer edge of the bottom, and a rectangular top plate closing the upper end of the trunk. The top plate has a first breakable line extending toward a pair of sides constituting the outer edge portion of the top plate, and each end portion of the first breakable line. A second breakable line extending to another pair of sides constituting the outer edge of the top plate, and a predetermined distance from the first breakable line with the first breakable line in between It has a pair of finger hooking holes that can be hooked with fingers.

  The packaging box of the present invention includes a pair of finger hooks on the top plate, and can be pulled by placing a finger on the finger hook when unpacking. At this time, in the present invention, since the finger-hanging portion is provided at a predetermined interval from the first breakable line across the first breakable line, both of the first breakable lines are provided. A region sandwiched between the finger hook holes is bent and broken. When the finger-hook portion is further pulled, the breakage progresses along the first breakable line, and the second breakable line extends from each end of the first breakable line. When the break is completed, the break proceeds along the second breakable line as it is.

  Thus, unpacking can be performed by pulling with a finger on the finger-hanging portion, and unpacking can be performed with less force by sequentially breaking the first breakable line and the second breakable line, thereby improving the unpacking property. be able to.

  Moreover, since the top plate has a so-called double door opening and the pair of finger-hanging portions become gripping portions for carrying after unpacking, the transportability of the packaging box can be improved.

  Further, in the packaging box of the present invention, the first breakable line is formed as a break start portion where a region sandwiched between the finger hook holes starts to break the top plate. An auxiliary crease line extending between each side opposite to the first breakable line, the auxiliary crease line being unpacked by breakage according to the first breakable line; It is preferable to bend along the crease line so that adjacent portions of the top plate sandwiching the break start portion are guided in directions away from each other.

  According to this, when a finger is placed on and pulled by a pair of finger rests on the top plate for unpacking, a portion that is bent in advance is provided, so that other portions of the top plate may be bent first. And can be folded along the auxiliary fold line. At this time, since the auxiliary crease line extends between each finger hooking hole and each side on the side opposite to the first breakable line, the force pulling the finger hooking part starts to break between the two finger hanging parts. And the inner region of the pair of auxiliary fold lines sandwiching each finger-hanging portion.

  As a result, the force pulling the finger-hanging portion is surely guided in a direction to separate the adjacent portions from each other with the rupture start portion interposed therebetween, and is converted into a force that breaks the rupture start portion. Therefore, according to the packaging box having such a configuration, it is possible to break with less force, so that the unpacking property can be improved.

The perspective view which shows one Embodiment of the packaging box of this invention. The expanded view of the packaging box of FIG. The perspective view which shows the unpacking process of the packaging box of FIG. The perspective view which shows the unpacking state of the packaging box of FIG. The conceptual diagram which shows notionally the deformation | transformation of the top plate of the packaging box of FIG.

  An embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the packaging box 1 of the present embodiment is formed in a rectangular parallelepiped shape, and stores a plurality of items to be packaged (for example, beverages in PET bottles, etc.) not shown.

  The packaging box 1 is a so-called wrap-around case, and is assembled by corrugated paperboard 2 formed by punching in a generally rectangular shape as shown in FIG.

  The corrugated paperboard 2 includes a bottom plate 3, a left side plate 5 connected to the left side edge of the bottom plate 3 via a fold line 4, and a right side plate 7 connected to the right side edge of the bottom plate 3 via a fold line 6. The top plate 9 is provided on the side of the right side plate 7 that faces the bottom plate 3 and is connected via the crease line 8.

  First side pieces 12 and 13 are connected to the front and rear side edges of the bottom plate 3 via crease lines 10 and 11, and fold lines 14 and 15 are provided to the front and rear side edges of the left and right side plates 5 and 7, respectively. , 16 and 17, ear pieces 18, 19, 20 and 21 are connected in series. In addition, projecting pieces 22 and 23 are formed at the front ends of the first side pieces 12 and 13, respectively.

  Second side pieces 26 and 27 are connected to the front and rear side edges of the top plate 9 via fold lines 24 and 25.

  An adhesive piece 28 that adheres to the top plate 9 when the packaging box 1 is assembled is connected to the left edge of the left side plate 5 via a crease line 29.

  The second side pieces 26 and 27 are formed with finger insertion portions 31 and 32 surrounded by the sewing machine line r and the crease line s on the top plate 9 side. In addition, finger insertion portions 33 and 34 surrounded by a sewing line t and a crease line u are formed in the vicinity of the left edge of the ear piece 19 and in the vicinity of the right edge of the ear piece 20, respectively. The finger insertion portions 31, 32, 33, and 34 can be bent along the crease lines s and u by inserting fingers and breaking the sewing machine lines r and t.

  The top plate 9 is formed with a first breakable line 40 that connects substantially the center portions of the front and rear side edges. Further, the top plate 9 is formed with second breakable lines 41 and 42 connecting the left and right side edges along the respective front and rear side edges.

  The first breakable line 40 is not limited to this shape, and may extend to either the right or left other than the substantially central portion as long as it extends along the front and rear side edges of the top plate 9. They may not be in contact with each other and may be drawn in a curved shape such as an S-shape instead of a straight shape. Similarly, the second breakable lines 41 and 42 may be curved as long as they extend from the front and rear end portions of the first breakable line 40 to the left and right edges of the top plate 9.

  Further, finger insertion portions 43 and 44 surrounded by the sewing machine line v and the crease line w are formed on the top plate 9 at a predetermined interval from the first breakable line 40. The finger insertion portions 43 and 44 are arranged symmetrically in the vicinity of the center of the first breakable line 40 in the length direction with the first breakable line 40 interposed therebetween.

  The finger insertion portions 43 and 44 can be bent along the crease line w by inserting a finger and breaking the sewing machine line v. In addition, the finger insertion parts 43 and 44 are corresponded to the finger hook of this invention. In addition, the finger hooking hole is not limited to this shape, and may be formed by cutting off from the beginning.

  The top plate 9 has auxiliary crease lines 51, 52, 53, and 54 extending obliquely in directions away from each other from the upper and lower ends of the finger insertion portions 43 and 44 to the left and right side edges of the top plate. Is formed. In addition, auxiliary crease lines 55, 56, 57, 58 extending in parallel with each other are formed on the top plate 9 from the upper and lower ends of the finger insertion portions 43, 44 to the left and right side edges of the top plate.

  Note that only one of the auxiliary crease lines 51, 52, 53, and 54 and the auxiliary crease lines 55, 56, 57, and 58 may be provided. In addition, if the auxiliary fold line extends between the finger insertion portions 43 and 44 and the left and right side edges of the top plate 9, the both end portions are respectively left and right of the finger insertion portions 43 and 44 and the top plate 9. It may not be in contact with the side edge.

  In the present embodiment, the auxiliary fold lines 51 to 58 are formed on the back surface of the top plate 9 as valley fold lines as will be described later, but may be formed on the top surface of the top plate 9 as mountain fold lines. Good.

  When the packaging box 1 shown in FIG. 1 is formed from the corrugated paperboard 2 shown in FIG. 2 having the above configuration, a plurality of packages (not shown) are arranged on the bottom plate 3 in the state of the corrugated paperboard 2 shown in FIG. First, the left and right side plates 5 and 7 are erected through the crease lines 4 and 6, respectively.

  Next, the respective ear pieces 18, 19, 20, 21 on both sides of the left and right side plates 5, 7 are bent along both side edges of the bottom plate 3 through the fold lines 14, 15, 16, 17, respectively. And the 1st side piece 12 and 13 provided in a row by the both sides of the baseplate 3 stands up through the crease lines 10 and 11, and it attaches to the outer surface of each ear piece 18, 19, 20, 21 via an adhesive agent. Glued. At this time, no adhesive is applied to the projecting pieces 22 and 23 of the first side pieces 12 and 13 so that they can be picked when folded.

  Subsequently, the top plate 9 is bent horizontally through the crease line 8. Next, the adhesive piece 28 is bonded to the inner surface of the top plate 9 via an adhesive. Then, the second side pieces 26, 27 provided continuously on both sides of the top plate 9 are bent downward via the crease lines 24, 25, and an adhesive is applied to the outer surface of each ear piece 18, 19, 20, 21. Glued through.

  As a result, an article to be packaged is accommodated inside a rectangular tubular body 60 (see FIG. 1) formed by the bottom plate 3, the left and right side plates 5, 7, and the top plate 9, and the front and back of the body 60 are connected to the ear pieces 18, 19, The closing parts 61 and 62 are formed by the 20, 21 and the first side pieces 12 and 13 and the second side pieces 26 and 27, and the packaging box 1 is formed. Note that the rectangular cylindrical body extending in the height direction formed by the front and rear blocking portions 61 and 62 and the left and right side plates 5 and 7 corresponds to the body portion of the present invention.

  The finger insertion portions 31, 32, 33, and 34 formed in the portions forming the closing portions 61 and 62 are broken along the sewing machine lines r and t, and are folded along the crease lines s and u. By pressing inward, a gripping part (not shown) can be formed.

  Next, the unpacking operation | work of the packaging box 1 of this embodiment is demonstrated.

  First, as shown in FIG. 3, the finger insertion portions 43 and 44 formed on the top plate 9 are broken along the sewing machine line v, bent along the crease line w, and pushed inward, Portions 63 and 64 are formed.

  A finger or the like is inserted into the finger hooks 63 and 64, and the region between the first breakable wire 40 and the finger hooks 63 and 64 adjacent to each other with the first breakable wire 40 sandwiched from the back surface of the top plate (hereinafter referred to as the finger hooks 63 and 64 , Referred to as the adjacent portion 9a), and by pulling up the adjacent portions 9a upward and in the direction of separating from each other, the region between the adjacent portions 9a of the first breakable line 40 (hereinafter, The rupture starts from the rupture start portion 40a).

  Next, by further pulling up the adjacent portion 9a from the back surface of the top plate, the breakage proceeds along the first breakable line 40 from the break start portion 40a toward the front and rear side edges of the top plate 9, and the first When the breakage of the breakable line 40 is completed, the second breakable lines 41 and 42 extend from the upper and lower ends of the first breakable line 40 in the left and right directions. Fracture proceeds along.

  In this way, the packaging box 1 can be unpacked simply by placing the finger on the finger hooks 63 and 64 and pulling upward, and the first breakable line and the second breakable line are sequentially broken, so that the packaging box 1 can be opened with less force. Can be packed.

  As shown in FIG. 4, since the top plate 9 is divided into right and left by the above-described unpacking operation, and the top plate 9 is opened upward, it is unpacked in a state where the packaged item in the packaging box 1 can be taken out. .

  Then, after the top plate 9 is released, for example, when the packaging box 1 is moved for sale of the packaged goods in the store, the finger hooks 63 and 64 are used as they are as gripping parts for transportation. be able to.

  FIG. 5 is a partially enlarged view of the top plate 9 when the break is started from the break start portion 40a. Hereinafter, functions of the auxiliary fold lines 51 to 58 will be described with reference to FIG.

  First, when fingers or the like are inserted into the finger rests 63 and 64, and the top plate 9 is provided with auxiliary crease lines 51 to 58 on the back surface when the finger is placed on the back surface of the adjacent portion 9a and pulled upward, Along each of the auxiliary fold lines 51 to 58, each is transformed into a valley fold.

  At this time, since the auxiliary crease lines 51 to 58 extend from the upper and lower ends of the finger hanging portions 63 and 64 to the left and right side edges of the top plate 9, the top plate 9 includes the adjacent portion 9a and the auxiliary fold lines 51 to 58. The inner region surrounded by 54 is positively deformed, and the other regions are not relatively deformed.

  That is, when the adjacent portion 9a is pulled, the pulling force is concentrated on the inner region surrounded by the adjacent portion 9a and the auxiliary fold lines 51 to 54 without being absorbed by the deformation of the entire packaging box 1.

  In particular, among the inner region surrounded by the adjacent portion 9a and the auxiliary crease lines 51 to 54, the left and right side edges are fixed to the side plates 5 and 7, so the load caused by the pulling is near the center of the region. It becomes easy to concentrate on the fracture start part 40a located.

  As a result, according to the packaging box 1 in the present embodiment, the breaking start portion 40 can be broken with less force.

DESCRIPTION OF SYMBOLS 1 ... Packaging box, 9 ... Top plate, 9a ... Adjacent part, 40 ... 1st breakable line, 40a ... Break start part, 41, 42 ... 2nd breakable line, auxiliary crease line ... 51-58, 63, 64 ... finger holes.

Claims (2)

A packaging box made of corrugated cardboard, comprising a rectangular cylindrical trunk extending in the height direction from the outer edge of the bottom, and a rectangular top plate closing the upper end of the trunk,
The top plate is a first breakable line extending toward a pair of sides constituting the outer edge of the top plate,
A second breakable line extending from each of the ends of the first breakable line to each of a pair of other sides constituting the outer edge of the top plate;
A packaging box comprising a pair of finger-engaging holes that can be hooked with a predetermined distance from the first breakable line across the first breakable line. The packaging box according to claim 1,
The first breakable line is formed as a break start portion where a region sandwiched between both finger hanging holes starts to break the top plate,
The top plate has auxiliary crease lines extending between each finger hanging hole and each side on the side facing the first breakable line,
The auxiliary crease line is a portion adjacent to the top plate, with the break start portion being sandwiched, by folding the top plate along the crease line when unpacking by breaking according to the first breakable line. A packaging box that is formed so as to be guided in a direction in which they are separated from each other.