JP2014037254A - Paper container and rupturing ruled line structure of paper product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily rupture a wall part with an excellent external appearance.SOLUTION: A packing box 10 comprises an operation part 22 provided in first wall parts 11A and 11B, an auxiliary bending line 30 slantingly extending in the inside upper direction toward the operation part 22 from a side part in the lateral direction of the first wall parts 11A and 11B, a first rupture line 25 extending toward an outside end part in the lateral direction of the auxiliary bending line 30 from the operation part 22 and a second rupture line 26 extending over the tip edge of second wall parts 16A, 16B, 17A and 17B continuously provided in the first wall parts 11A and 11B from an end part of the first rupture line 25 or the upper edge of the first wall parts 11A and 11B.

Description

  The present invention relates to a paper container and a ruled line structure for breaking paper products.

  The packaging box made of corrugated paper is provided with an enclosing wall having four wall portions that are continuous in one direction, and sealing walls that close both end openings of the enclosing wall. The sealing wall is configured by overlapping and sticking flaps, which are wall portions provided continuously to each wall portion of the surrounding wall.

  The wrap-around type packaging box is used so that merchandise such as a can beverage is accommodated and the sealing wall is positioned in the lateral direction. In this packaging box, the side wall portion provided with the flaps can be broken in the horizontal direction, and the upper half is separated into a tray shape so that the products inside can be easily displayed at the store.

  For example, the packaging box of Patent Document 1 is provided with an operation portion for performing a breaking operation on a pair of opposed side wall portions, and a first breaking line is provided from the operation portion to both side edges of the side wall portion. Further, the packaging box is provided with a second break line extending from the end portion of the first break line to the front end edge on the flap that is continuously provided beside each side wall portion. The first and second break lines are perforated cut lines in which cut parts and continuous parts penetrating from one side to the other side are provided alternately. Patent Document 2 describes a packaging box in which the first break line of Patent Document 1 is configured by a single zipper.

  However, since the packaging boxes of Patent Documents 1 and 2 are provided with the first break line so as to extend in the lateral direction with respect to the standing side wall portion, even if the operation portion is operated to open upward, It is difficult to cause the operating force to act on the continuous portion of the first breaking line and break. That is, since the operation direction for breaking is the direction along the side wall portion, it is necessary to break a plurality of continuous portions by pulling, and thus a large operating force is required. If a resin tape is disposed on the inner surface side of the side wall portion as a breaking means, the workability related to breaking can be improved, but in this case, the front liner constituting the corrugated paper is torn and becomes irregular, and the appearance is not uniform. Deteriorate.

Registered Utility Model No. 3156835 JP 2012-91799 A

  An object of the present invention is to provide a paper container and a breaking ruled line structure that can easily and easily break a wall portion.

In order to solve the above-mentioned problems, a paper container according to the present invention comprises an enclosure wall having three or more continuous walls, and a wall portion connected to the wall portion of the enclosure wall to close both end openings of the enclosure wall. A paper container provided with a sealing wall that is provided on a first wall portion of the wall portions of the surrounding wall and is operated to be broken upward, and a lateral side portion of the first wall portion. An auxiliary folding curve that extends inward and upward from the operation section to cause the first wall section to be folded by operation of the operation section, and an outer end in the left-right direction of the auxiliary folding curve from the operation section A first break line that extends toward the portion and breaks the first wall portion from the operation portion side by operation of the operation portion; and an end portion of the first break line is connected to the first wall portion. Of the wall portion of the sealing wall, it extends to the leading edge of the second wall portion or the upper edge of the first wall portion, Following rupture of the first wall portion along the first break line by the operation of the work unit, and configured to include a second break lines to break the second wall or the first wall portion.
That is, the breaking ruled line structure of the paper product of the present invention is provided on the first wall portion and operated to be broken in the vertical direction, and from the lateral side portion of the first wall portion to the operation portion. Extending toward the inner longitudinal direction, and extending toward the laterally outer end of the auxiliary folding curve from the operating portion and the auxiliary folding curve that causes the first wall portion to be folded by operation of the operating portion. A first break line that breaks the first wall portion from the operation portion side by operation of the operation portion; and a second wall portion that is connected to the first wall portion from an end portion of the first break line. Following the break of the first wall portion along the first break line by the operation of the operation portion, the second wall portion or the second wall portion extends from the leading edge or the longitudinal edge of the first wall portion. And a second break line that breaks the one wall portion. In this ruled line structure, the descriptions of the vertical direction and the horizontal direction are for the purpose of clarifying the directionality for forming the auxiliary folding curve and break line, and are not limited to the vertical direction or the horizontal direction. Absent.

  In the present invention, since the auxiliary folding line extending incline in the inner upper (vertical) direction toward the operation portion is provided, the first wall portion is bent along the auxiliary folding curve by the operation of the operation portion. Thereby, the operating force in the pulling direction along the first wall portion acts in the outward direction intersecting the first wall portion by this principle using the auxiliary folding curve as a fulcrum. As a result, it is possible to save labor related to breakage of the continuous portion of the first break line, and workability can be reliably improved. Then, after the first wall portion breaks along the first break line, the second wall portion or the first wall portion can be broken along the second break line. In addition, since the first and second break lines have a continuous portion in part, they can be set as break edges as set and a good appearance can be obtained.

  In this paper container, it is preferable to further provide a second auxiliary folding line extending from the operation portion toward the upper end edge of the first wall portion. In this way, the first wall portion can be reliably folded along the first auxiliary folding curve.

  In the present invention, the first wall portion is bent along the auxiliary folding curve by the operation of the operation portion, and the operation force is applied outward with the auxiliary folding curve as a fulcrum, thereby breaking along the first breaking line. Work-saving can be achieved and workability can be improved reliably. In addition, since the first and second break lines have a continuous portion in part, they can be a break edge having a good appearance.

It is a perspective view which shows the packaging box which is a paper container using the ruled line structure for fracture | rupture of 1st Embodiment of this invention. It is a perspective view which shows one step of a fracture | rupture operation | work. It is a perspective view which shows another one step of a fracture | rupture operation | work. It is a perspective view which shows a fracture | rupture state. (A) is the state of FIG. 1, (B) is the state of FIG. 2, (C) is principal part sectional drawing which shows the state of FIG. It is a top view which shows the blank of the packaging box of 1st Embodiment. It is a principal part enlarged plan view of FIG. (A)-(C) are the principal part expanded sectional views of FIG. It is a principal part enlarged plan view of the blank of the packaging box of 2nd Embodiment. It is a principal part enlarged plan view of the blank of the packaging box of 3rd Embodiment. It is a principal part enlarged plan view of the blank of the packaging box of 4th Embodiment. It is a principal part enlarged plan view of the blank of the packaging box of 5th Embodiment. It is a principal part enlarged plan view of the blank of the packaging box of 6th Embodiment. It is a perspective view which shows the packaging box of 7th Embodiment. It is a perspective view which shows the packaging box of 8th Embodiment.

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

(First embodiment)
FIG. 1 shows a packaging box 10 which is a corrugated paper product (container) to which the ruling ruled line structure of the first embodiment according to the present invention is applied. The packaging box 10 includes a cylindrical surrounding wall having side wall portions 11A and 11B, a bottom wall portion 12 and a top wall portion 13, and flaps 16A, 16B to 19A and 19B which close both end openings of the surrounding wall. And a wrap-around type in which the sealing wall is disposed in the lateral direction. In the present embodiment, the first break line 25 and the second break line 26 are provided to allow the packaging box 10 to be divided vertically, and the auxiliary folding curves 30 to 32 are provided to improve workability at the time of break. Is.

  The packaging box 10 is formed by punching the corrugated paper 1 as a single blank by a well-known paper machine punching device. As shown in FIG. 8A, the corrugated cardboard 1 is a well-known one in which a corrugated center 4 is disposed between the front liner 2 and the back liner 3.

  As shown in FIG. 6, the blank of the packaging box 10 forms a rectangular shape having substantially the same width in the order of the side wall portion 11 </ b> A, the bottom wall portion 12, the side wall portion 11 </ b> B, and the top wall portion 13 from the upper side to the lower side. The walls are provided so as to be continuous. These are the surrounding walls configured to form a square cylinder shape in the assembled state, and are attached to the edge of the top wall portion 13 located at the lower end portion on the side wall portion 11A located at the upper end portion. For this purpose, a margin portion 14 is provided continuously. As shown in FIG. 8 (B), a folding line 15 is formed at each of these boundary portions by forming a ruled line from the back liner 3 side so as to compress the thickness.

  Inner flaps 16A and 16B are connected to the left and right side edges of the side wall part 11A, and inner flaps 17A and 17B are connected to the left and right side edges of the side wall part 11B. Further, outer flaps 18A and 18B are connected to the left and right side edges of the bottom wall portion 12, and outer flaps 19A and 19B are connected to the left and right side edges of the top wall portion 13. The inner flaps 16A, 16B, 17A, and 17B and the outer flaps 18A, 18B, 19A, and 19B are wall portions that are attached to each other in an assembled state, and are sealing walls (ends) that close both end openings of the surrounding wall by the attachment. Wall). The outer flaps 18A, 18B, 19A, 19B are provided with notches 20 for exposing the central portions of the inner flaps 16A, 16B, 17A, 17B on both sides of the tip. Further, a folding line 21 is provided at a boundary portion between each wall portion 11A, 11B to 13 and each flap 16A, 16B to 19A, 19B.

  Among these, a pair of side wall parts 11A and 11B which oppose in an assembly state are 1st wall parts in which the operation part 22 for breaking operation and the 1st breaking line 25 for breaking at a predetermined position are provided. Further, the inner flaps 16A, 16B, 17A, and 17B connected to the side wall portions 11A and 11B are second wall portions in which a second break line 26 continuous to the end portion of the first break line 25 is provided. The side walls 11A and 11B are provided with first to third auxiliary folding curves 30 to 32 in order to save the operating force related to the breaking along the first breaking line 25.

  As shown in FIG. 7, the operation unit 22 includes an operation break line 23 provided at the approximate center in the horizontal (left and right) direction and vertical (up and down) direction of the side wall portions 11A and 11B. The breaking line for operation 23 is provided so as to extend in the lateral direction so as to form a straight line. Three push folding curves 24A to 24C are provided below the operation breaking line 23. The indentation folding line 24A is provided so as to extend in the vertical direction from the center of the operation breaking line 23. The indentation folding lines 24B and 24C are provided so as to be inclined and extend from both end sides of the operation breaking line 23 to the lower end of the indentation folding line 24A.

  The first break line 25 is provided so as to extend in the lateral direction from both ends of the operation break line 23 to the left and right side edges of the side wall portions 11A and 11B which are the outer end portions of the first auxiliary folding line 30. The first breaking line 25 is formed in a wave shape that repeats unevenness by an arc. The 2nd breaking line 26 is provided so that it may extend from the edge part of the 1st breaking line 25 located on the folding line 21 to the front-end edge of inner flap 16A, 16B, 17A, 17B. The second break line 26 is formed in a straight line shape so that the tip is located in the notch 20 of the outer flaps 18A, 18B, 19A, 19B in an assembled state.

  Each break line 23, 25, 26 is formed of a cut line having a continuous portion 29 in part. Specifically, the break lines 23, 25, and 26 are formed by alternately providing full cut (full cut) portions 27 and half cut (half cut) portions 28. As shown in FIG. 8C, the full cut portion 27 is formed by inserting a blade from the back liner 3 to the front liner 2. The half-cut portion 28 is a continuous portion 29 in which a blade is inserted from the back liner 3 side to cut the back liner 3 and the front liner 2 is not cut. In addition, although the middle shin 4 has shown the state cut | disconnected, only one part may be cut | disconnected or may not be cut | disconnected.

  The first auxiliary folding line 30 extends upward from the lateral outer end of the first break line 25 that is both sides of the side walls 11A and 11B toward the operation unit 22 and toward the top wall 13. It is provided so that it may incline and extend. The tip of the first auxiliary folding line 30 (on the top wall 13 side) is located between the outer end of the operation break line 23 and the outer end of the first break line 25. Moreover, when a virtual line extending in a direction orthogonal to the first auxiliary folding line 30 is provided at the tip of the first auxiliary folding line 30, the virtual line intersects in the vicinity of the inner end of the first fracture line 25. It is provided as follows.

  The second auxiliary folding line 31 is in the vertical (orthogonal) direction from both ends of the operation breaking line 23 toward the boundary line (folding line 15) with the top wall 13 that is the upper edge of the side walls 11A and 11B. It is provided so that it may extend. The third auxiliary folding line 32 is provided so as to extend from both end portions of the operation breaking line 23 to the tip of the first auxiliary folding line 30.

  The indentation folding lines 24A to 24C and the auxiliary folding curves 30 to 32 are formed of ordinary folding curves shown in FIG. 8B formed by ruled lines from the back liner 3 side. However, the indentation folding curves 24A to 24C and the first auxiliary folding curve 30 are constituted by reverse folding curves (that is, reverse rules) formed by ruled from the side of the front liner 2 and are folded at the time of breaking operation. It may be easy to do.

  The packaging box 10 is shipped to a predetermined manufacturer in a blank state shown in FIG. 6 and sealed by an automatic assembly packaging machine. For example, the can beverage is placed in a predetermined arrangement on the bottom wall portion 12 in a state where the blank is arranged flat. Thereafter, the side wall portion 11A is bent with respect to the bottom wall portion 12, and then the adhesive margin portion 14 is bent with respect to the side wall portion 11A. In addition, after the side wall portion 11B is bent with respect to the bottom wall portion 12, the top wall portion 13 is bent. And the paste margin part 14 and the edge of the top wall part 13 which overlap are adhere | attached with the adhesive agent (hot melt) which consists of hot-melt resin.

  Here, when the side wall portions 11A and 11B are bent with respect to the bottom wall portion 12, a force is applied so that the side wall portions 11A and 11B are bent along the first break line 25 by the first break line 25 extending in the lateral direction. Works. In the worst case, the continuous portion 29 of the first break line 25 may be broken. However, since the first break line 25 is formed in a wave shape in the present embodiment, it can be prevented from being bent or broken along the first break line 25.

  When the surrounding wall is formed by sticking the top wall part 13 to the glue margin part 14, the inner flaps 16A, 16B, 17A, 17B are bent with respect to the side wall parts 11A, 11B, and then the bottom wall part 12 and the top wall The outer flaps 18A, 18B, 19A, 19B are bent with respect to the portion 13. And the overlapping part of each flap 16A, 16B-19A, 19B is adhere | attached with a hot melt, and a sealing wall is formed. Thereby, it can be set as the sealing state shown to FIG. 1 and FIG. 5 (A).

  Next, breakage (opening) of the packaging box 10 will be specifically described. 2B to 5C, only the case where the side wall portion 11B side is broken is illustrated, but the same applies to the case where the side wall portion 11A side is broken.

  First, a finger is applied to the lower part of the operation unit 22 (for example, on the pressing folding curve 24A) and pressed inward. As a result, the continuous portion 29 of the operation break line 23 is broken, and the lower portion of the operation portion 22 in the side wall portion 11B is pushed inward as shown in FIGS. 2 and 5B.

  Next, a finger is applied to the upper side breaking edge 23a of the operation breaking line 23 exposed by pushing and pulled upward. Thereby, as shown in FIG. 3 and FIG. 5 (C), an upward operation force along the side wall portion 11B can be applied while the upper portion of the side wall portion 11B is bent outward. As a result, the upper portion of the side wall portion 11 </ b> B is mountain-folded along the second and third auxiliary folding curves 31, 32 and valley-folded along the first auxiliary folding curve 30.

  If the operation is further continued in this state, the operating force in the pulling direction along the side wall portion 11B acts in the outward direction intersecting the side wall portion 11B according to the principle using the first auxiliary folding line 30 as a fulcrum. To do. In addition, due to the inclination of the first auxiliary folding curve 30, the operating force acts strongly on the side close to the operating unit 22 and acts weakly on the side far from the operating unit 22. That is, the operation force is not applied evenly to a large number of continuous portions 29, but is applied with strength, so that the continuous continuous portion 29 apart from the central continuous portion 29 close to the operating portion 22 is sequentially broken. Is done. Then, when the breaking of the side wall portion 11B along the first breaking line 25 is completed, the inner flaps 17A and 17B are subsequently broken along the second breaking line 26.

  The upper half of the packaging box 10 can be separated as shown in FIG. 4 by breaking the side wall portion 11A and the inner flaps 16A and 16B in the same manner. As a result, the products stored in the lower half of the tray can be easily displayed at the store.

  Thus, the packaging box 10 of the present embodiment reliably folds the first auxiliary folding curve 30 inclined by the second and third auxiliary folding curves 31 and 32, and continues the first breaking line 25. It is possible to save labor for 29 breaks. Therefore, the breakage (opening) workability of the packaging box 10 can be improved. In addition, since the first and second break lines 30 and 31 are formed by cut lines having a continuous portion 29 in part, the break edges can have good appearance as set.

(Second Embodiment)
FIG. 9 shows a packaging box 10 to which the breaking ruled line structure of the second embodiment is applied. The second embodiment is different from the first embodiment in that the third auxiliary folding line 32 is not provided. Specifically, the first auxiliary folding line 30 is provided so as to be inclined inward and upward from the end portion of the first break line 25, and the tip thereof is the center of the operation portion 22 (sidewall portions 11A and 11B). It is provided so that it may be located in. Further, only one second auxiliary folding curve 31 is provided from the center of the operation break line 23 toward the intersection that is the tip of the pair of first auxiliary folding curves 30. Even if it does in this way, the effect | action and effect similar to 1st Embodiment can be acquired.

(Third embodiment)
FIG. 10 shows a packaging box 10 to which the ruling ruled line structure of the third embodiment is applied. The third embodiment is different from the first embodiment in that the second auxiliary folding line 31 is not provided. Specifically, the first auxiliary folding line 30 is provided in the same manner as in the first embodiment. A pair of third auxiliary folding lines 32 are provided so as to incline from the center of the operation breaking line 23 to the tip of the first auxiliary folding line 30. Even if it does in this way, the effect | action and effect similar to 1st Embodiment can be acquired.

(Fourth embodiment)
FIG. 11 shows a packaging box 10 to which the ruling ruled line structure of the fourth embodiment is applied. The fourth embodiment is different from the first embodiment in that the first breaking line 25 is configured by a piece zipper 33 extending linearly. In addition, the piece zipper 33 has the cutting part 33a provided so that it may make a perforation shape with a predetermined space | interval, and the cutting part 33b for guides provided in the inner end of the cutting part 33a which is a fracture | rupture upstream side. In the fourth embodiment, the side walls 11A and 11B may be bent along the first breaking line 25 when sealing the side walls 11A and 11B with respect to the bottom wall portion 12, but the other surfaces are the first. Functions and effects similar to those of the first embodiment can be obtained.

(Fifth embodiment)
FIG. 12 shows a packaging box 10 to which the breaking ruled line structure of the fifth embodiment is applied. The fifth embodiment is different from the first embodiment in that the configuration of the operation unit 22 is changed. Specifically, in the center of the side wall portions 11A and 11B, a pair of first cutting portions 34 and 34 extending in the vertical direction, a semicircular second cutting portion 35 provided between these upper ends, and a first An operation unit 22 having a cut-and-raised structure having a folding line 36 provided between the lower ends of the cutting parts 34 and 34 is provided. In addition, a pair of operation break lines 23 and 23 are provided on both sides of the operation unit 22. In the fifth embodiment, since the operation unit 22 having a cut-and-raised structure is provided, a space for operation can be easily secured by pressing with a finger as in the first embodiment. Then, by performing the breaking operation, the same actions and effects as in the first embodiment can be obtained.

(Sixth embodiment)
FIG. 13 shows a packaging box 10 to which the breaking ruled line structure of the sixth embodiment is applied. The sixth embodiment is different from the first embodiment in that the configuration of the operation unit 22 is changed as in the fifth embodiment. Specifically, a folding line 37 extending in the lateral direction is provided at the center of the side wall portions 11A and 11B. Further, an operation breaking line 38 having a semicircular shape is provided so as to be continuous with both ends of the folding line 37. The second operation break line 38 has the same configuration as that of FIG. 8C in which the full cut portions 27 and the half cut portions 28 are alternately provided. In the sixth embodiment, by pressing with a finger as in the first embodiment, the side wall portions 11A and 11B are broken along the second breaking line for operation 38, and a space for operation can be secured. Further, when performing the breaking operation, the finger touches the portion folded inward, so that no pain is felt. Then, by performing the breaking operation, the same actions and effects as in the first embodiment can be obtained.

(Seventh embodiment)
FIG. 14 shows a packaging box 40 of the seventh embodiment. The seventh embodiment is different from the respective embodiments in that a breaking ruled line structure is applied to a general-purpose packaging box 40 in which sealing walls are arranged vertically. The packaging box 40 includes a surrounding wall in which a pair of side wall portions 41A and 41B and end wall portions 42A and 42B are alternately continued. The end wall portions 42A and 42B are provided with upper inner flaps 43A and 43B connected to the upper end edge, and with lower inner flaps (not shown) connected to the lower end edge. Further, the side wall portions 41A and 41B are provided with upper outer flaps 44A and 44B connected to the upper end edge, and with lower outer flaps (not shown) connected to the lower end edge.

  In the packaging box 40, one side wall portion 41A is provided with an operation portion 22 and a first break line 25 similar to those in the first embodiment. However, the 1st breaking line 25 is set as the structure extended to the near side edge of side wall part 41A. A second break line 26 is provided at the end of the first break line 25, extending in the vertical direction and extending toward the leading edge of the upper outer flap 44A. The second break line 26 is constituted by a single zipper having a cutting portion and a guide cutting portion. Also in the packaging box 40 configured in this manner, by performing the breaking operation by the operation portion 22, the side wall portion 41A is broken along the first breaking line 25 similarly to the first embodiment, and subsequently the second breaking line. 26, the side wall 41 </ b> A and the upper outer flap 44 </ b> A can be broken.

(Eighth embodiment)
FIG. 15 shows a packaging box 40 to which the breaking ruled line structure of the eighth embodiment is applied. In the eighth embodiment, first break lines 25 similar to those of the first embodiment are provided over both side edges of the side wall portion 41A, and second break lines 26 are provided from both end portions to the upper edge of the side wall portion 41A. This is different from the seventh embodiment. That is, the second break line 26 of the eighth embodiment extends along the boundary line between the end wall portions 42A and 42B adjacent to the side wall portion 41A and extends to the root portions of the upper inner flaps 43A and 43B and the upper outer flap 44A. Is provided. In the eighth embodiment configured as described above, the same operations and effects as those of the seventh embodiment can be obtained. Further, the upper outer flap 44A is integrally separated by separating the upper portion of the side wall portion 41A along the second breaking line 26.

  The paper container and the breaking ruled line structure of the present invention are not limited to the configuration of the above embodiment, and various modifications can be made.

  For example, in the said embodiment, although the 1st and 2nd fracture line 25,26 was comprised by the combination of the full cut part 27 and the half cut part 28, or the piece zipper 33, both or one side is predetermined on a folding line You may comprise by the perforated cut line which provided the cutting part with the space | interval. The half-cut portion 28 is formed by inserting a blade from the back liner 3 side. However, the liner that forms a cut portion in the back liner 3 at the stage before the front liner 2, the back liner 3 and the center lining 4 are bonded together. You may comprise by cutting. Further, the full cut portion 27 may be provided only with the half cut portion 28 without being provided.

  Further, in each of the embodiments, the first breaking line 25 is configured to extend in the horizontal direction with respect to the side wall portions 11A, 11B, and 41A, but may be formed to be inclined in a predetermined direction. Furthermore, in the above embodiment, one operation unit 22 is provided for the first break line 25, but a plurality of operation units 22 may be provided for one first break line 25.

  Furthermore, in the first to sixth embodiments, the breaking ruled line of the present invention is provided on the pair of side wall parts 11A and 11B, but the breaking ruled line is provided only on one of the side wall parts 11A and 11B, and the other has a single zipper. It is good also as a structure which provides the fracture | rupture means, such as a zipper and a resin tape provided symmetrically. In each embodiment, the second and / or third auxiliary folding curves 31 and 32 are provided in addition to the first auxiliary folding curve 30, but only the first auxiliary folding curve 30 is provided. Also good.

  In each of the embodiments, the packaging boxes 10 and 40 are configured by four wall portions of the surrounding wall, but may be configured by eight wall portions in which a chamfered wall portion is formed between adjacent wall portions. . Of course, it may be constituted by three wall portions or may be constituted by five or more wall portions. In each embodiment, the packaging boxes 10 and 40 have been described as examples of the paper product forming the breaking ruled line. However, any paper product having a plurality of continuous walls can be applied. Further, in each of the above embodiments, the paper product made of corrugated paper is used, but it may be made of a single paper (cardboard), and if it is formed of a well-known paper, the same operations and effects as described above can be obtained.

10 ... Packing box (paper product)
11A, 11B ... side wall (going wall, first wall)
12 ... Bottom wall (go wall)
13 ... Top wall (Go wall)
16A, 16B, 17A, 17B ... Inner flap (sealing wall, second wall)
18A, 18B, 19A, 19B ... outer flap (sealing wall)
DESCRIPTION OF SYMBOLS 22 ... Operation part 25 ... 1st breaking line 26 ... 2nd breaking line 29 ... Continuous part 30 ... 1st auxiliary folding curve 31 ... 2nd auxiliary folding curve 32 ... 3rd auxiliary folding curve 40 ... Packaging box 41A, 41B ... side wall (go wall)
42A, 42B ... end wall (go wall)
43A, 43B ... Upper inner flap (sealing wall)
44A, 44B ... Upper outer flap (sealing wall)

Claims (3)

In a paper container comprising: an enclosure wall having three or more continuous wall portions; and a sealing wall comprising a wall portion connected to the wall portion of the enclosure wall and closing both end openings of the enclosure wall;
An operation portion provided on a first wall portion of the wall portion of the surrounding wall and operated to be broken upward;
An auxiliary folding curve that extends inward and upward from the lateral side of the first wall portion toward the operation portion, and folds the first wall portion by operation of the operation portion;
A first break line extending from the operation portion toward an outer end portion in the left-right direction of the auxiliary folding curve, and breaking the first wall portion from the operation portion side by operation of the operation portion;
The operation portion extends from an end portion of the first break line to a leading edge of a second wall portion or an upper end edge of the first wall portion of the wall portion of the sealing wall provided continuously to the first wall portion. A second break line that breaks the second wall part or the first wall part following the break of the first wall part along the first break line by the operation of
A paper container characterized by comprising:   The paper container according to claim 1, further comprising a second auxiliary folding line extending from the operation portion toward an upper end edge of the first wall portion. Among paper products in which a plurality of wall portions are continuously provided, a breaking ruled line structure for breaking the first wall portion of the wall portions,
An operation portion provided on the first wall portion and operated to be broken in a vertical direction;
An auxiliary folding curve extending from the lateral side portion of the first wall portion toward the operation portion in an inward vertical direction, and causing the first wall portion to be folded by operation of the operation portion;
A first break line extending from the operation portion toward a lateral outer end of the auxiliary folding curve, and breaking the first wall portion from the operation portion side by operation of the operation portion;
It extends from the end portion of the first break line to the leading edge of the second wall portion connected to the first wall portion or the longitudinal edge of the first wall portion, and the first portion is operated by the operation portion. Following a break of the first wall along the break line, a second break line that breaks the second wall or the first wall; and
A ruled line structure for breaking a paper product, comprising:

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