JP2012076792A - Paper carton - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a top open type paper carton in which the content is taken out by widely opening a top panel, and a volume of this carton can simply be reduced when disposing the carton after taking out the content.SOLUTION: Four auxiliary incisions γ respectively extending toward four corners of the top panel 14 are formed on areas of the top panel outside an opening section and near the four corners, respectively. Here, each of the four auxiliary incisions γ is formed such that it continues its adjacent perforated line Lwith a spacing between itself and the adjacent perforated line. After taking out the content to leave nothing inside the paper carton, the all auxiliary incisions γ parts are broken at the four corners of the top panel 14 by widening the opening of the opening section toward right and left sides thereby making folded flaps come off at the respective corners to flatten the paper carton.

Description

  The present invention belongs to the technical field of cartons made of paperboard, and in particular, is a rectangular parallelepiped paperboard container, suitable for storing and selling confectionery, cosmetics, pharmaceuticals, various accessories, etc. It relates to the paper carton used.

  Conventionally, as this type of paper carton, a top-open type paper carton is known in which the top panel is greatly opened to take out the contents. As a typical example, a flap panel that extends forward from the top panel with a hinge on the rear side is attached to the front panel, the contents are stored, and then the side flaps are folded between the side panels. Is a paper carton that is formed by sticking, and at the time of opening, pulls the knob part consisting of a part of the flap panel and breaks the flap panel and the top panel along the breaking line to break two lines Pick up the opening and closing part surrounded by the line, open the center part of the top panel widely and take out the contents, and once opening and closing the opening part, insert the knob part into the notch on the front panel What is constructed so as to prevent the opening and closing part from opening naturally by closing with is widely used.

JP-A-8-11869 JP-A-9-193926 JP 11-310226 A

  The top-open type paper carton described above can be taken out one by one because it is easy to take out the contents in the opened state and reclose is possible because almost the entire top panel is opened greatly. As a container for storing and selling confectionery, it is very convenient. On the other hand, when discarding such a paper carton after use, it is desired to reduce the volume by crushing the box shape. However, since this type of paper carton has to peel off the seals on both side panels, it has been troublesome to reduce the volume for disposal even though the top surface has been greatly opened. It was.

  The present invention has been made in view of such problems, and the object of the present invention is a top-open type paper carton in which the top panel is greatly opened to take out the contents, and the contents are taken out. Another object of the present invention is to provide a paper carton that can be easily reduced in volume when it is disposed of later.

  In order to achieve the above object, the paper carton according to the present invention has a flap panel that extends forward from the top panel, and is attached to the front panel. The end faces are closed by adhering the side panels on the side, and the top panel has break lines consisting of a plurality of continuous cuts formed near the left and right sides and near the back panel. However, a fold line is provided with a length located inside the right and left break lines, and an area surrounded by the left and right break lines and the bend line forms an unsealed area. A top open type paper carton in which break lines composed of a plurality of cuts are formed so as to reach the right and left break lines of the top panel, respectively, and a picking portion for opening opening connected to the break lines is formed at the front end Ah In the vicinity of the outer corner of the unsealed area of the top panel, four auxiliary cut lines respectively directed to the four corners of the top panel are formed so as to be continuous with an interval between adjacent break lines. Features.

  And, in the paper carton having the above configuration, one notch constituting the breaking line is extended toward the corner, and the auxiliary cutting line at the corner is continuous with an interval between the extended portions of the notch. It is preferable to do.

  The paper carton of the present invention can open the opening area of the top panel by pulling the knob part and continuously breaking the break line of the flap panel and the break line of the top panel, and take out the contents inside After emptying, widen the left and right sides of the opened opening by hand to break all four auxiliary break lines at each corner of the top panel. As a result, the folding flaps come off at each corner. And can be reduced in volume when discarded.

It is a perspective view which shows an example of the paper carton concerning this invention. It is an expanded view of the blank which assembles the paper carton shown in FIG. It is explanatory drawing which expanded a part of fracture | rupture line of the right side formed in the top | upper surface panel in the blank shown in FIG. It is an enlarged view which expands and shows a part of right side of the top | upper surface panel in the blank shown in FIG. It is a perspective view which shows the paper carton shown in FIG. 1 in the state which opened the top | upper surface. It is explanatory drawing which shows a mode that the volume of the paper carton shown in FIG. 1 is reduced from the opened state of FIG.

  FIG. 1 shows an example of a paper carton according to the present invention. This paper carton is formed by assembling the blank shown in FIG.

  The blank in FIG. 2 is formed by punching paperboard for paper containers. As shown in the drawing, the front panel 11, the bottom panel 12, the back panel 13, A top panel 14 and a flap panel 15 are sequentially provided. Then, side panels 16 and 17 on the bottom side are connected to the left and right sides of the bottom panel 12 via folding lines e and f, respectively, and the folding flaps 18 are connected to the left and right sides of the back panel 13 via folding lines g and h, respectively. , 19 are connected to each other, side panels 20 and 21 on the top surface side are connected to the left and right sides of the top panel 14 via fold lines i and j, respectively, and fold lines k and l are connected to the left and right sides of the flap panel 15. Folding flaps 22 and 23 are connected to each other.

The flap panel 15 has a knob portion 15a at the center of the tip by a cut with a jumper, and the knob portion 15a is provided with a ruled line m made of a ruled line at the center so as to be easily bent. Then, two breaking lines L ₁ for unfolding extending from the two roots of the knob portion 15 to the end are formed, and the top panel 14 has two broken lines L ₁ respectively. continuously also breaking line L ₂ for opening is formed to near the parallel back panel 13 and the respective sides.

The top panel 14 is formed with break lines L ₂ near the left and right sides, and a folding line α serving as a hinge of the opening portion is located inside the left and right break lines L ₂ near the back panel 13. is formed with a length that is close to the area surrounded by the left and right breaking line L ₂ and the fold line α forms an opening region (opening portion).

The left and right break lines L ₂ in the top panel 14 are provided from the flap panel 15 side to the back panel 13 side to the front of the fold line α, and are connected to the rupture line L ₂ of the fold line α. A cut line β reaching the end is formed, and a tongue piece 24 that protrudes rearward from the bending line α is defined by the cut line β. And the fold line (alpha) used as the hinge of an opening part is formed with the perforation so that it may bend easily.

Break line L ₂ of the break line L ₁ and the top panel 14 of the flap panel 15 is comprised of a plurality of notches that any consecutive. Among them, since the break line L ₁ of 2 muscle in the flap panel 15 is formed in a flared, that is upon opening inward force is broken hanging for each cut, as shown, the breaking direction In this way, the cuts in a shape in which the rear side is bent inward are made continuous so that the breakage is not interrupted.

On the other hand, broken line L ₂ of the left and right in the top panel 14 has a plurality of notches successive are arranged in a line parallel to the side edges. Then, as shown in FIG. 3 in which a part of the fracture line L ₂ on the right side of FIG. 2 is enlarged, these cuts y are composed of a main part y _{1 in the} same direction as the fracture direction (arrow direction) and a main part y. ₁ includes a front bent portion y ₂ protruding obliquely outward at an obtuse angle from the rear end B of the breaking direction ₁ , and a rear bent portion y ₃ protruding obliquely outward at an obtuse angle from the front end C of the main body portion y _{1 in} the breaking direction. cage, the position of the tip a of the front bent portion y ₂ is located outside the position of the leading end D of the rear bent portion y _3, as an extension of the rear bent portion y ₃ comes into contact with the front bent portion y _2, the forward bending The angle and length of the part y ₂ and the rear bent part y ₃ are determined. Furthermore, in order to prevent the cuts y from being raised due to the rubbing of the blanks in the sack pasting process, a jumpsuit u is left at substantially the center of the main body portion y ₁ .

In addition, the top panel 14, left and right in the vicinity of the outer corners of the opening region surrounded by a broken line L ₂ and the fold line alpha, auxiliary cutting line towards 4 each in the corner of the top panel 14 gamma breaking line L ₂ is formed so as to be continuous with an interval. Specifically, as shown in FIG. 4 in which a part of the top panel 14 of FIG. 2 is enlarged, the lower right auxiliary cut line γ is provided at an angle of approximately 45 degrees that bisects the corner. Further, the front bent portion y ₂ in the second cut y in the breaking direction constituting the breaking line L ₂ is extended so as to be continuous with the breaking line L _2. It is provided at an angle of approximately 45 degrees that divides into _two, and is continuous to the fracture line L ₂ by utilizing a part of the cut line β that defines the tongue piece 24. Then, the auxiliary cutting line gamma, in order to receive reliably break from the break line L _2, as shown, the front as viewed in the breaking direction are the bent shape inwardly.

In the auxiliary cut line γ, as in the case of the cut y of the breaking line L ₂ , a jump v is left in the middle to prevent the blanks from being rubbed and raised in the sack pasting process. The auxiliary cut lines γ formed in the vicinity of the two corners on the left side of the top panel 14 are the same except that they are symmetrical with respect to the right side.

  The front panel 11 is formed with an insertion portion 11a at a position corresponding to the knob portion 15a of the flap panel 15. After opening the assembled paper carton, the insertion portion 11a is provided with a knob portion 15a at the tip of the opening portion. It can be inserted and locked. Here, the insertion portion 11a is partitioned by a roughly rectangular cut leaving two places of one jumper on one side, and when the insertion portion 11a is pressed, one side with the jumper is bent as a hinge, so that the knob portion 15a It is easy to insert.

  In addition, a recess forming region 11b having a spindle shape in the middle of the fold line a is provided in the boundary between the front panel 11 and the bottom panel 12 in order to form a recess that can be easily hooked with the knob 15a when opened. Yes. The spindle-shaped recess forming region 11b has a perforation on the front panel 11 side so that the boundary between the front panel 11 and the bottom panel 12 can be easily bent during box making.

The blank in FIG. 2 is in a sack pasting state in which the back side of the flap panel 15 is pasted to the front side of the front panel 11. At this time, the portion excluding the opening portion, i.e. glued than break line L ₁ in the outer area. Then, a plurality of the pasted sack are collectively sent to the box making process.

  To assemble a paper carton from a sack-attached blank, first fold up the folded blank into a square tube shape, then fold the folded flaps 19 and 23 inward on one end face side, and then the bottom side face The panel 17 and the side panel 21 on the top surface side are sequentially bent and bonded together.

  In this way, the contents are put in from the other open side with only one end face closed. Then, after folding the folding flaps 18 and 22 inward on the other end face side, the side panel 16 on the bottom side and the side panel 20 on the top side are sequentially folded and bonded together. As a result, the paper carton shown in FIG. 1 is boxed.

When taking out the contents from the paper carton shown in FIG. 1, the top is opened as shown in FIG. In order to open the top surface of the paper carton in this way, the depression formed in the recess forming region 11b at the lower end of the front panel 11 is used, and the grip portion 15a of the flap panel 15 is grasped with a finger and pulled. Thus the break line L ₁ of 2 muscle flap panel 15 breaks by pulling the knob portion 15a, as each break line L ₁ the left and right of the break line L ₂ of the top panel 12 by pulling from the top to the rear While being continuously broken, the broken opening portion is opened as a lid while rotating around the folding line α as a hinge. And it pulls diagonally back, holding the opening part of the flap panel 15 and the top panel 14.

  After opening in this way, the opened lid part is lifted obliquely upward to unlock the tongue piece 24 and tilted forward as it is, and then the knob part 15a is inserted into the insertion part 11a of the front panel 11 and locked. By doing so, the lid can be closed.

In the opened state shown in FIG. 5, triangular projections generated by the breaking of the breaking line L ₂ remain around the opened opening portion, and no projections remain around the opening formed in the top panel 14. That is, the breaking of the breaking line L ₂ is performed from the front end D of the rear bent portion y ₃ projecting obliquely outward from the rear end of the main portion y ₁ of the cut y to the front of the next cut y having the front end A on the outer side. since proceeds by until the bent portion y ₂ is connected, with breaking is reliably performed, the peripheral edge of the opening formed after the opening portion is opened in a state where triangular depressions are continuous. Therefore, when the hand is put into the opening and the contents are taken out, the hand is not caught.

As shown in FIG. 5, after the top surface is opened and the contents are taken out, the empty paper carton can be easily reduced in volume and discarded. That is, since the auxiliary cut line γ is formed at an angle of approximately 45 degrees that bisects each corner at the four corners of the top panel 14, by spreading the left and right sides of the opening by hand as shown in FIG. from where the missing hole of the tongue 24 at the hinge side, in front of the corner side from where the second notch y in break line L _2, are all broken at respective auxiliary cutting line 4 places connected to gamma, the As a result, the folding flaps come off at each corner and the paper carton becomes flat.

  As mentioned above, although the form for implementing this invention has been demonstrated in detail, the paper carton by this invention is not limited to said embodiment at all, In the range which does not deviate from the meaning of this invention, various change It is natural that this is possible.

DESCRIPTION OF SYMBOLS 11 Front panel 11a Insertion part 11b Recess formation area 12 Bottom panel 13 Back panel 14 Top panel 15 Flap panel 15a Knob part 16, 17 Side panel 18, 19 Folding flap 20, 21 Side panel 22, 23 Folding flap 24 Tongue piece L ₁ , L ₂ Fracture line α Folding line β Cutting line γ Auxiliary cutting line a ~ l Folding line m Ruled line u, v Slippery y Notch y ₁ Main part y ₂ Forward bending part y ₃ Back bending part A Tip B Rear edge C Front edge D Tip

Claims (2)

  A flap panel extending forward from the top panel is attached to the front panel, and the end face is closed by attaching the bottom panel and the top panel to each other after folding the folding flap inward. In the top panel, a break line consisting of a plurality of continuous cuts is formed near the left and right sides, and it is bent near the back panel with a length located inside the right and left break lines. A line is provided, and an area surrounded by the left and right break lines and the fold line forms an unsealed area, and the break line consisting of a plurality of continuous cuts is formed on the flap panel. A top-open type paper carton formed at the front end of the opening start knob that is formed so as to reach each line, and is near the outer corner of the opening area on the top panel. Paper wherein the four auxiliary cutting line towards 4 each in the corner of the top panel is formed to be continuous spaced break lines adjacent each carton.   The incision constituting the breaking line is extended toward the corner, and the auxiliary cutting line at the corner is continuous with the extended portion of the incision at a distance. Paper carton.

Images