JP4807236B2 - Paper carton - Google Patents

Description

  The present invention belongs to the technical field of paper cartons made of cardboard, and particularly relates to a paper carton suitable for eating and using stored contents in a small amount.

Conventionally, for example, cereal foods are sold in a state where a large bag is further put in a paper carton. That is, in consideration of eating in small portions, a paper carton is used as an outer box to make it easier to preserve the remaining portion. In addition, since detergents are dispensed in small amounts and used, paper cartons having the same shape are also used to store them.
JP-A-5-97138

  Even if the contents of the paper carton as described above gradually decrease, the paper carton is the same size as the paper carton. Therefore, in the middle of consuming the contents, extra storage is required even if the contents are reduced. Space is needed. In addition, the amount of contents is not understood only from the outside, and sometimes the purchase time is missed.

  The present invention has been made in view of such problems, and the object of the present invention is to make a paper carton that can be reduced in size and reduced in volume when the content is reduced and the remaining amount is reduced. Is to provide.

  In order to achieve the above object, the paper carton of the present invention has a front side, a back panel, and side panels positioned on both sides thereof, and a lower part folded in a continuous manner on the lower side of each side panel. After folding each flap, the bottom panel connected to the lower side of the front panel and the back panel is stacked and bonded together to form the bottom closure, and the upper folding flap connected to the upper side of each side panel is bent. Then, a rectangular parallelepiped paper carton in which an upper closing part is formed by sequentially bending and bonding an upper surface inner panel connected to the upper side of the back panel and an upper surface outer panel connected to the upper side of the front panel, The front panel has a front crossing area at the center that is approximately the same width as the side panel, and the back panel has a side panel width at the center. A rear transverse region of substantially the same width is defined, the upper inner panel is bonded to the upper folding flap, and the upper outer panel is provided with opening means by upper perforations, on both sides of the front panel. Each side perforation is formed from both ends of the upper side to the upper side of the front crossing area, and the part surrounded by the upper perforation and the side perforation is opened as a lid part and then the front perforation area is opened. The upper side can be opened and closed as a hinge, the lower side of the front crossing region can be broken, and the lid part after opening can be removed together with the front crossing region, and part of the side panel is also removed along with their removal Thus, the back panel is characterized in that it can be bent at the upper and lower sides in the rear crossing region.

  The paper carton of the present invention can be used in the usual way of opening the portion surrounded by the upper perforation and the side perforation as a lid portion, and then opening and closing the lid portion and taking out the contents. When it is reduced and the remaining amount is reduced, the lid portion is pulled as it is and removed together with the front crossing region, and then the back panel is bent at the upper and lower sides in the rear crossing region, and the upper part is located below the rear crossing region. By covering, the volume as a box can be greatly reduced. The reduced volume of the paper carton fits tightly so that the upper part of the rear crossing region covers the lower part from the outside, so that the closed state can be maintained, and it can be held with both hands. It has a reclose function that can be opened easily. In addition, by reducing the size of the paper carton and reducing the volume, it can be seen that the remaining contents are small, so that it is possible to prevent missing purchases.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an example of a paper carton according to the present invention, and FIG. 2 is a plan view of a blank forming the paper carton of FIG.

The paper carton A _{1 in} FIG. 1 is a sales form containing a bag containing cereal food, and the appearance is a vertically long rectangular parallelepiped shape, and is manufactured by assembling the blank B ₁ shown in FIG.

The blank B ₁ is formed by punching a paper board for a paper carton. As shown in the figure, the adhesive margin flap 11, the front panel 12, the side panel 13, and the back panel 14 are connected via the fold lines a, b, c, and d. The side panels 15 are successively provided. A bottom panel 16 is connected to the lower side of the front panel 12 via a fold line e, an upper surface outer panel 17 is connected to the upper side via a fold line f, and a lower line of the side panel 13 is connected to a lower line via a fold line g. The lower folding flap 18 is continuously provided, the upper folding flap 19 is continuously provided on the upper side via a folding line h, and the bottom panel 20 is continuously provided on the lower side of the rear panel 14 via a folding line i. An upper side inner panel 21 is connected to the upper side via a fold line j, a lower folding flap 22 is connected to the lower side of the side panel 15 via a fold line k, and an upper side is connected to the upper side via a fold line l. A folding flap 23 is provided continuously.

  The front panel 12 has a front transverse region 12a having a width slightly wider than the width of the side panels 13 and 15 at the center thereof, which is defined by a fold line m on the upper side and a body perforation α on the lower side. Further, a rear crossing region 14a having a width slightly wider than the width of the side panels 13 and 15 is defined by a fold line n on the upper side and a fold line o on the lower side. Usually, the width of the front crossing region 12a and the rear crossing region 14a is set to be about 1 to 2 mm larger than the width of the side panels 13 and 15. In addition, the width of the front crossing region 12a and the rear crossing region 14a need not be the same, but even in that case, the width of the rear crossing region 14a is made about 1 to 2 mm larger than the width of the side panels 13 and 15.

The upper surface outer panel 17 connected to the upper side of the front panel 12 is provided with a breakable knob portion 17a at the center of the tip, and is opened for extending from the root of the knob portion 17a to the end and extending to both side edges. An upper perforation β ₁ is formed, and opening side perforations β ₂ extending from both ends of the upper side to the upper side of the front crossing region 12 a are formed on both sides of the front panel 12. A portion surrounded by the upper perforation β ₁ and the side perforation β ₂ is a portion that becomes a lid portion by being opened. Further, an insertion slit 21 a is formed in the upper inner panel 21 connected to the upper side of the rear panel 14 so as to correspond to the knob portion 17 a of the upper outer panel 17.

  The side panels 13 and 15 are provided with removal regions 13a and 15a and folding regions 13b and 15b having the same shape at portions adjacent to the front transverse region 12a of the front panel 12 and the rear transverse region 14a of the back panel 14.

The removal region 13a of the side panel 13 includes a perforation γ ₁ extending obliquely downward from the upper side end of the rear crossing region 14a to the lower side end of the front crossing region 12a, and obliquely upward from the upper side end of the rear crossing region 14a. Is a triangular portion defined by a perforation γ ₂ extending to the side of the front panel 12 and the side of the front panel 12, and the perforation when removing the lid portion and the front crossing region 12a. It is the part that is broken and removed together at γ ₁ and γ ₂ . Further, the folding region 13b of the side panel 13, a perforation gamma ₁ reaching the lower end portion of the front transverse region 12a extends from the upper end portion of the rear transverse region 14a obliquely downward, and the lower side end portion of the front transverse region 12a This is a triangular portion defined by a lateral fold line p connecting the lower side edge of the rear transverse region 14a and a side edge of the back panel 14, and after removing the removal region 13a, By the way, it is designed to be folded. The central fold line q is formed by a lead crease having a cut line in the middle of the crease for easy folding.

The removal region 15a and the folding region 15b of the side panel 15 are provided so as to be symmetric with respect to the removal region 13a and the folding region 13b of the side panel 13 with respect to the longitudinal center line of the back panel 14. That is, the side panel 15 is provided with a fold line r extending the lower side of the rear crossing region 14a, and the removal region 15a extends obliquely downward from the upper side end of the rear crossing region 14a to reach the end of the fold line r. A triangular portion defined by a perforation γ ₁ , a perforation γ ₂ extending obliquely upward from the upper edge of the rear crossing region 14 a to reach the side of the side panel 14, and a side of the side panel 14. is there. The folding region 15b includes a perforation γ ₁ extending obliquely downward from the upper side end of the rear crossing region 14a to the end of the folding line r, a folding line r extending the lower side of the rear crossing region 14a, and the rear panel 14 A fold line s made of a lead rule is formed at the center. When the blank B ₁ is assembled, the side panel 15 is bonded to the adhesive flap 11 along its side, so that the perforations γ ₁ and γ ₂ of the side panel 15 overlap with the adhesive flap 11. Similarly, perforations γ ₁ and γ ₂ are formed.

This blank B ₁ is folded in a sack pasting state in which the front side of the adhesive margin flap 11 is pasted to the rear side of the end of the side panel 15. In order to assemble the folded blank B ₁ into the paper carton A ₁ of FIG. 1, first, the folded blank B ₁ is raised in a rectangular tube shape, and then the upper side connected to the upper sides of the side panels 13 and 15. After folding the folding flaps 19 and 23, the upper side inner panel 21 and the upper side outer panel 17 are bent and bonded together in this order to close the upper part. At this time, the upper surface inner panel 21 and the upper folding flaps 19 and 23 are bonded together. The upper surface outer panel 17 is bonded to the upper surface inner panel 21 in two regions outside the upper perforation β ₁ .

In this way, after closing the upper part, the contents are charged from below. In this case, in this example, a bag containing cereal food is introduced. Next, after folding the lower folding flaps 18 and 22 connected to the lower sides of the side panels 13 and 15, the bottom panels 16 and 20 are sequentially folded and bonded to form the bottom. In this way, the paper carton A ₁ containing the contents shown in FIG. ₁ is assembled.

As shown in FIG. 3, the paper carton A ₁ pulls the knob portion 17a of the upper surface outer panel 17 to break the upper perforation β ₁ and the side perforation β ₂ , so that the upper perforation β ₁ it is possible to open the portion surrounded by the side perforations beta ₂ as a lid portion. At this time, the broken line m on the upper side of the front crossing region 12a becomes the hinge portion. FIG. 3 shows a state in which the inner bag P can be seen in the opened state. After opening in this way, the bag P can be broken and the cereal food inside can be taken out. And after taking out the amount which eats cereal food, as shown in FIG. 4, the opened cover part can be returned, and the knob | pick part 17a in the front-end | tip can be inserted in the slit 21a of the upper surface inner panel 21, and can be closed.

When the amount of cereal food in the bag P decreases and the remaining amount decreases, the volume of the paper carton A _{1 as} a box relative to the bag P becomes relatively large. Therefore, when the size of the paper carton A ₁ becomes small enough to enter the content below the front crossing region 12a, the volume can be reduced by the following procedure.

First, as shown in FIG. 5, the front crossing region 12 a is broken at the lower body perforation α and removed together with the lid portion. At this time, the removal regions 13a and 15a of the side panels 13 and 15 are also broken at the oblique perforations γ ₁ and γ ₂ and removed together. Next, as shown in FIG. 6, while the folded bag 13 is put in, the folded portions 13b and 15b are folded inward at the folding line s, and the back panel 14 is placed at the upper and lower folding lines n and o in the rear transverse region 14a. As shown in FIG. 7, the upper part is put on the part below the rear crossing region 14a. Thereby, the paper carton A ₁ can greatly reduce the volume as a box. Then, the portion above the rear crossing region 14a can be closed in a state where it is fitted so as to cover the lower portion from the outside. Moreover, when taking out the contents, it can be easily opened by grasping with both hands.

8 is a perspective view showing a modified example of the paper carton shown in FIG. 1, and FIG. 9 is a plan view of a blank forming the paper carton shown in FIG. Since the paper carton A ₂ and the blank B ₂ are different in the structure of the side panels 13 and 15 from the paper carton A ₁ and the blank B ₁ described above, the other parts have the same structure. Are given the same reference numerals.

Also on the side panels 13 and 15 of the blank B ₂ , removal regions 13 a and 15 a and folding regions 13 b and 15 b having the same shape are provided at portions adjacent to the front transverse region 12 a of the front panel 12 and the rear transverse region 14 a of the back panel 14. However, these shapes are different from those shown in FIG.

The side panel 13 includes a lateral fold line p connecting the lower side end of the front crossing region 12a and the lower side end of the rear crossing region 14a, the upper side end of the front crossing region 12a, and the upper side end of the rear crossing region 14a. And a horizontal fold line t is provided. And the square part enclosed by these two parallel folding lines p and t and the both sides of the side panel 13 is divided into four triangles by the diagonal line, and a front crossing area | region among two diagonal lines orthogonal to each other portion partitioning the triangle adjacent to 12a are perforated gamma _3, and the rest is formed by fold line q, u. Therefore, it has become triangular removal region 13a adjacent to the front transverse region 12a, when removing the lid portion and the front transverse region 12a, is removed together is broken at the perforation gamma _3. Further, the portion other than the triangle is a folding region 13b, which is folded at two folding lines q and v after the removal region 13a is removed. Note that these fold lines q and v are formed by lead creases having a cut line in the middle of the crease to facilitate folding.

The side panel 15 is provided with a fold line r extending the lower side of the rear crossing region 14a and a fold line v extending the upper side of the rear crossing region 14a. The square portion surrounded by the two parallel folding lines r and v and both sides of the side panel 15 is divided into four triangles by diagonal lines, and the rear crossing region of the two diagonal lines orthogonal to each other. The part that divides the triangle located on the side opposite to 14a is the perforation γ ₃ , and the remainder is formed by the broken lines s and w. When the blank B ₂ is assembled, the side panel 15 is bonded to the adhesive flap 11 along the side of the blank B ₂ , so that the perforation γ ₃ of the side panel 15 overlaps the adhesive margin flap 11 in the same manner. γ ₃ is formed. Thus, in the assembled state, has become triangular removal region 15a adjacent to the front transverse region 12a, when removing the lid portion and the front transverse region 12a, is removed together is broken at the perforation gamma ₃ . Further, a portion other than the triangle is a folding region 15b, which is folded at two folding lines s and w after removing the removal region 15a. Note that these folding lines s and w are formed by lead rules having a cut line in the middle of the folding rules in order to facilitate folding.

In the blank B ₂ , slits 12 b each having a predetermined length are provided downward from both ends of the lower body perforation α defining the front crossing region 12 a on the front panel 12. That is, a part of the folding lines a and b on both the left and right sides of the front panel 12 is used as the slit 12b.

By assembling this blank B ₂ in the same procedure as the blank B ₁ described above, a paper carton A ₂ shown in FIG. 8 is obtained. The paper carton A ₂ is used after being opened in the same manner as the paper carton A ₁ described above. The procedure for reducing the volume of the box is the same, but the method of deformation of the side panel at that time is different.

First, as shown in FIG. 10, the front crossing region 12 a is broken at the lower body perforation α and removed together with the lid portion. At this time, the removal regions 13a and 15a of the side panels 13 and 15 are broken at the perforation γ ₃ and removed together. Next, as shown in FIG. 11, the folded back portions 14b and 15b are folded inward at the folding lines r, s, v, and w while the small bag P is put, and the back panel 14 is moved up and down in the rear transverse region 14a. Are folded at the folding lines n and o, and the upper part is put on the part below the rear transverse region 14a as shown in FIG. At this time, since the slit 12b is formed in the front panel 12, the portions on both sides of the slit 12b can be covered while being bent. Thereby, the paper carton A ₁ can greatly reduce the volume as a box. Then, the portion above the rear crossing region 14a can be closed in a state where it is fitted so as to cover the lower portion from the outside. Moreover, when taking out the contents, it can be easily opened by grasping with both hands.

  Although the embodiments of the present invention have been described in detail above, the paper carton according to the present invention is not limited to the above embodiments, and various modifications can be made without departing from the spirit of the present invention. It is natural to be.

  For example, in the above example, when the back panel 14 is bent at the upper and lower sides in the rear crossing region 14a to reduce the volume as a box, the side panels 13 and 15 are formed with folded portions. The shape of the folded portion is not limited to the two examples described above, and is arbitrary as long as the back panel 14 can be bent at the upper and lower sides in the rear transverse region 14a. In addition, when removing the lid portion and the front crossing region, a configuration may be adopted in which all the folded portions are removed.

  Further, in the above example, the opening means having the knob portion at the center of the tip is provided on the upper surface outer panel, but the opening means having no knob portion may be provided.

It is a perspective view which shows an example of the paper carton concerning this invention. It is a top view of the blank which forms the paper carton of FIG. It is explanatory drawing shown in the state which opened the paper carton of FIG. It is explanatory drawing which shows a mode that it closes, after opening the paper carton of FIG. It is explanatory drawing which shows a mode that the cover part and front crossing area are removed after opening the paper carton of FIG. It is explanatory drawing which shows a mode that volume reduction of the paper carton of FIG. It is a perspective view which shows the state which reduced the volume of the paper carton of FIG. It is a perspective view which shows the modification of the paper carton shown in FIG. It is a top view of the blank which forms the paper carton of FIG. It is explanatory drawing which shows a mode that the cover part and front crossing area are removed after opening the paper carton of FIG. It is explanatory drawing which shows a mode that volume reduction of the paper carton of FIG. It is a perspective view which shows the state which reduced the volume of the paper carton of FIG.

Explanation of symbols

A ₁ , A ₂ paper carton B ₁ , B ₂ blank a to w Folded line α Body perforation β ₁ Upper perforation β ₂ Side perforation γ ₁ , γ ₂ , γ ₃ perforation 11 Glue margin flap 12 Front panel 12a Front crossing area 12b Slit 13 Side panel 13a Removal area 13b Folding area 14 Back panel 14a Back crossing area 15 Side panel 15a Removal area 15b Folding area 16 Bottom panel 17 Upper surface outer panel 17a Knob part 18 Lower folding flap 19 Upper folding flap 20 Bottom panel 21 Upper surface inner panel 21a Slit 22 Lower folding flap 23 Upper folding flap

Claims (1)

  The body is formed by the front panel, the back panel, and the side panels located on both sides of each, and the lower folding flaps connected to the lower side of each side panel are bent, and then the lower side of the front panel and the back panel are folded. A bottom closing part is formed by overlapping and laminating the bottom panels that are connected in series, and the upper folding flaps that are connected to the top side of each side panel are folded, and then the top side inner panel that is connected to the top side of the back panel A rectangular parallelepiped paper carton in which an upper closure is formed by sequentially folding and pasting the upper outer panel connected to the upper side of the front panel. The front panel has a width approximately the same as the width of the side panel at the center. The front crossing area of the rear panel is divided, and the rear panel has a rear crossing area substantially the same as the width of the side panel in the center of the rear panel. The panel is bonded to the upper folding flap, and the upper outer panel is provided with opening means by upper perforations, and the sides of the front panel extend from both ends of the upper side to the upper side of the front crossing region. Each perforation is formed, and the part surrounded by the upper perforation and the side perforation can be opened and closed with the upper side of the front crossing region as a hinge after opening them as a lid part, and the lower side of the front crossing region The sides can be broken, and the lid part after opening can be removed together with the front crossing region, and by removing a part of the side panel along with the removal, the back panel can be removed from the upper and lower sides in the rear crossing region. By the way, it is a paper carton that can be bent.

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