JP6402006B2 - Packaging box - Google Patents

Description

  The present invention relates to a packaging box having a covering flap that partially covers a front plate from the upper end.

  Conventionally, the openability has been devised for packaging boxes. For example, the first opening and the second opening that are adjacent to each other with the opening guide side interposed therebetween are provided on one surface of the packaging box, and the second opening is formed using a space formed by pushing down the first opening. A packaging box that can be easily opened by pulling up is disclosed (for example, see Patent Document 1).

  The front panel has a horizontal strip break and the side panels have diagonally upward perforations continuous to the strip break, breaking the strip break when opening and breaking the perforation. Then, a paper container that is opened is disclosed (see, for example, Patent Document 2).

  An upper lid piece, an insertion piece connected to the upper lid piece, a glued piece provided on a side surface of the box and surrounded by an upper end side and a breaking line of the side surface, and an adhesive piece, An oval-shaped push-in portion formed at a position apart from the glued piece at the bottom, and a knob portion of the insert piece projects into an opening formed by pushing the push-in portion into the box. Disclosed is a packaging box in which the glued piece is separated from the side surface by cutting the breaking line and the insertion piece and the upper lid piece are opened away from the side surface by pulling up the protruding knob. (For example, refer to Patent Document 3).

  An opening / closing flap that includes an opposing front wall and a rear wall and that is continuous with the upper edge of the rear wall extends so as to partially cover the front wall from the upper end side. It has a tearable opening piece defined by a breaking line, and the opening / closing flap is bonded to the opening piece on its inner surface, and the lower end portion of the breaking line that defines the opening piece is lower than the lower end portion of the opening / closing flap covering the front wall. Extending to the lower position, the breaking area surrounded by the lower end of the breaking line and the lower end of the opening and closing flap is exposed on the front wall so as to be visible from the outside, and the breaking area is pushed with a finger, There has been disclosed a packaging box configured to pick and open an opening piece and an opening / closing flap together (for example, see Patent Document 4).

Japanese Patent Laid-Open No. 7-112738 Japanese Utility Model Publication No. 4-109022 JP 2005-112384 A JP 2010-23852 A

  A container having a covering flap that partially covers the front plate of the box from the upper end, such as a box described in Patent Document 3 or 4, has resealability, and is therefore a container for contents used in several times. Suitable as In a box having a cover flap that partially covers the front plate of the box from the upper end, proper opening is achieved by pulling up the cover flap and the front plate at the same time. However, in the paper container described in Patent Document 3, since the unsealing operation is an operation of picking and lifting only the insertion piece, the insertion piece and the glued piece are peeled off and only the insertion piece is pulled up, Proper opening may not be possible. The packaging box described in Patent Document 4 is configured so that the unsealing piece and the opening / closing flap are integrally picked and opened, and therefore, the problem that the unsealing piece and the opening / closing flap are peeled off during the unsealing operation hardly occurs. However, the box after opening has a problem that a piercing area is pushed in to form a hole leading to the inside of the box, and dust or dust easily enters from the hole. For this reason, it is not suitable as a container for contents that may be stored for a long time.

  The object of the present invention relates to a packaging box having a covering flap that partially covers the front plate from the upper end, and is not unintentionally opened in an unopened state such as during transportation or storage, and more reliably at the time of opening. It is to provide a packaging box that can be opened.

  The packaging box according to the present invention is a rectangular bottom plate, standing up from each side of the bottom plate, connected to the front plate, the right side plate, the rear plate and the left side plate, and the upper end side of the rear plate, A rectangular tube box having a top plate facing the bottom plate, the rectangular tube box having a covering flap connected to the top plate and partially covering the front plate from the upper end; A hinge line extending in the left-right direction is formed on the rear surface plate, and an opening line connected to both ends of the hinge line is formed across the right side surface plate, the front surface plate, and the left side surface plate, and the hinge line and the unsealing line are formed. A main body part including the bottom plate and containing the contents inside, and an opening part including the top plate and opening the main body part by rotating backward about the hinge line as an axis In the partitioned packaging box, the covering flap is in front of the front plate. Adhering to a region above the opening line and covering the opening line formed on the front plate, the front plate extends downward from the opening line, and the covering flap It is characterized by having a breaking region partitioned by two cut lines extending to a position below the lower end side of the two and a connecting line connecting the lower ends of the two cut lines.

  In the packaging box according to the present invention, the opening line formed on the right side plate and the left side plate has a linear first cut and a linear shape extending obliquely from the front end of the first cut on the cut line side. A plurality of bent line-like cut lines each having a second cut line and a linear third cut line that is continuous with the end line of the second cut line and parallel to the extension line of the first cut line are connected to each other through a joint. The unsealed lines of the portion other than the piercing area formed on the front plate are lined up in a row, (a) a linear first cut, and an oblique line from the front end of the first cut on the cut line side It has a bent line-shaped cut line consisting of a linear second cut extending to (b) has a cut line made of a linear first cut, or a combination of (a) and (b) preferable. The front side plate can open the opening line with a smaller force while preventing the unintentional cutting of the opening line on the right side plate and the left side plate.

  In the packaging box according to the present invention, the content is a folded sheet-like material, and the folded sheet-like material is stored in a state in contact with the inner surface of the push-breaking region. Is preferred. Since the bent sheet-like material pushes the smashing area from the inside of the box, the impact applied from the outside to the smashing area is absorbed. Therefore, the smashing area is not intended to be easily broken. Further, even if the push-through area is unintentionally broken, it is difficult for the push-out area to be pushed into the box, and the appearance of the product can be prevented from being deteriorated.

  In the packaging box according to the present invention, it is preferable that a distance between a lower end side of the covering flap and a portion between the two cut lines of the opening line is 5 mm or less. At the time of opening, the user can pick up the covering flap and the front plate at the same time and pull them up, so that the proper opening can be performed more reliably.

  In the packaging box which concerns on this invention, it is preferable to provide the display part which instruct | indicates to push through to the said push-out area | region. The user can be informed of the procedure to ensure proper opening.

  In the packaging box according to the present invention, a first display unit indicating that the opening line formed on the right side plate and the left side plate is broken in advance, and the opening line formed on the right side plate and the left side plate. It is preferable to have the 2nd display part which instruct | indicates to push through the said torn region after breaking. The user can be informed of the procedure to ensure proper opening.

  The present invention relates to a packaging box having a covering flap that partially covers the front plate from the upper end, and is not unintentionally opened when unopened during transportation or storage, and opens more reliably when opened. A packaging box that can be provided can be provided.

It is the perspective view seen from the right front which shows an example of the packaging box which concerns on this embodiment. It is the perspective view seen from the left rear which shows an example of the packaging box which concerns on this embodiment. It is a figure which shows an example of the blank sheet | seat of the packaging box which concerns on this embodiment. It is a front view which shows an example of the packaging box which concerns on this embodiment. It is a right view which shows an example of the packaging box which concerns on this embodiment. It is sectional drawing cut | disconnected by the XX line of FIG. It is a figure which shows the state which opened the packaging box.

  Next, the present invention will be described in detail with reference to embodiments, but the present invention is not construed as being limited to these descriptions. As long as the effect of the present invention is exhibited, the embodiment may be variously modified.

  FIG.1 and FIG.2 is a perspective view which shows an example of the packaging box based on this embodiment. As shown in FIGS. 1 and 2, the packaging box 1 according to the present embodiment includes a rectangular bottom plate 2, and a front plate 3, a right side plate 4, and a rear plate that are erected from each side of the bottom plate 2. 5 and a left side plate 6 and a top plate 7 connected to the upper end side of the rear plate 5 and opposed to the bottom plate 2, and the square tube box is connected to the top plate 7. The front plate 3 has a covering flap 8 that partially covers the upper end, and the rear plate 5 is formed with hinge lines 21 extending in the left-right direction, and open wires 22 (22a, 22b, 22c) is formed across the right side plate 4, the front side plate 3 and the left side plate 6 and includes the bottom plate 2 with the hinge wire 21 and the unsealing wire 22 as a boundary, Opening part 3 including the face plate 7 and opening the main body part 30 by rotating backward about the hinge line 21 as an axis The covering flap 8 is bonded to the region 3c above the opening line 22b of the front plate 3 and covers the opening line 22b formed on the front plate 3, so that the front plate 3 Are the opening line 22b, the two cut lines 23 extending downward from the opening line 22b and extending to a position below the lower end side 8a of the covering flap 8, and the lower ends of the two cut lines 23 It has a push-through area 25 partitioned by a connecting line 24 that connects the parts.

  The packaging box 1 is a rectangular tube box as shown in FIGS. 1 and 2, and includes, for example, a bottom plate 2, a front plate 3, a right side plate 4, a rear plate 5, a left side plate 6 and a top plate 7. It has a hexahedral shape. The material of the packaging box 1 is not particularly limited, and is, for example, paper such as paperboard or cardboard, or plastic board. Although the thickness of the board | plate material which comprises the packaging box 1 is not specifically limited, For example, it is 0.3-1.0 mm.

  FIG. 3 is a diagram illustrating an example of a blank sheet of the packaging box according to the present embodiment. The packaging box 1 is formed, for example, by assembling a single blank sheet 100 as shown in FIG. In the blank sheet 100, the right side plate 4, the front side plate 3, the left side plate 6, the rear side plate 5, and the glued piece 9 are connected to each other via a crease line. The upper edge 4a and the lower edge 4b of the right side plate 4 are provided with crease lines, and the upper right piece 11 and the lower right piece 13 are connected to each other. A crease line is provided on the upper end side 3a of the front plate 3, and the top surface glued piece 10 is connected to the top surface glued piece 10 and the insertion piece 16 is connected via the crease line 10a. A crease line is provided at the lower end side 3b of the front plate 3, and the bottom plate 2 is connected. The upper side 6a and the lower side 6b of the left side plate 6 are provided with crease lines, and the upper left piece 12 and the lower left piece 14 are connected to each other. A crease line is provided on the upper end side 5a of the rear plate 5, and the top plate 7 is connected to the top plate 7, and a covering flap 8 is connected to the top plate 7 through the crease line 7a. A crease line is provided on the lower end side 5b of the rear plate 5, and the bottom surface glued pieces 15 are connected. Moreover, the blank sheet 100 shown in FIG. 3 may be variously modified within a range not impairing the effects of the present invention.

  As shown in FIG. 3, the hinge line 21 is a line extending in the left-right direction across the rear plate 5, and is preferably parallel to the upper end side 5 a of the rear plate 5. The hinge wire 21 is preferably in the upper half when the rear plate 5 is divided into two equal parts in the vertical direction. It is preferable that the hinge wire 21 is subjected to a process that is easy to bend such as a crease line or a perforation line. In this specification, the right direction refers to the direction from the left side plate 6 toward the right side plate 4, and the left direction refers to the direction from the right side plate 4 toward the left side plate 6. The upward direction refers to the direction from the bottom plate 2 toward the top plate 7, and the downward direction refers to the direction from the top plate 7 toward the bottom plate 2.

  As shown in FIG. 3, the unsealing line 22 (22a, 22b, 22c) is formed across the right side plate 4, the front plate 3 and the left side plate 6, and the unsealing line 22a formed on the right side plate 4 and the front plate 3 and an open line 22 c formed on the left side plate 6. The opening line 22 (22a, 22b, 22c) is a perforation line, for example. When the packaging box 1 is assembled, both ends of the opening wire 22 are connected to the hinge wire 21. The unsealing line 22a provided on the right side surface plate 4 has a downward slope toward the lower side as the front surface plate 3 is approached, for example. The opening line 22b provided on the front plate 3 preferably includes an opening line 22b1 that forms the stepped portion 41 and an opening line 22b2 that is disposed below the other portion by the stepped portion 41. The step part 41 is a part into which the covering flap 8 is inserted inward after opening. The packaging box 1 can be reclosed by inserting the covering flap 8 inside the step portion 41. The opening line 22c provided on the left side surface plate 6 has a downward slope toward the lower side as the front surface plate 3 is approached, for example.

  The breaking region 25 includes an opening line 22b, two cut lines 23 extending downward from the opening line 22b and extending to a position below the lower end side 8a of the covering flap 8, and two cutting lines This is a region partitioned by a connecting line 24 connecting the lower ends of the line of sight 23. It is preferable that the opening line 22b that divides the push-break area 25 is the opening line 22b2 that is disposed below the other part by the step portion 41. The two score lines 23 are parallel to each other with a space therebetween. The interval S between the two score lines 23 is not particularly limited as long as the push-break region 25 can be pushed in with a finger, and is, for example, 10 to 50 mm. More preferably, it is 15-30 mm. Further, the length T0 of the score line 23 is not particularly limited as long as it extends to a position below the lower end side 8a of the covering flap 8, and is, for example, 10 to 30 mm. More preferably, it is 10-30 mm. The connecting line 24 is preferably subjected to a process that is easy to bend such as a crease line or a perforation line, but may be a printed line. The connecting line 24 is preferably parallel to the opening line 22b2.

  Next, an example of a procedure for assembling the packaging box 1 from the blank sheet 100 will be described. In the blank sheet 100, the right side plate 4, the front plate 3, the left side plate 6, and the rear plate 5 are bent into a square tube shape, and the glued piece 9 is bonded to the right side plate 4. Next, after the lower right piece 13 and the lower left piece 14 are bent, the bottom paste piece 15 and the bottom plate 2 are sequentially bent, and the bottom plate 2 is bonded to the bottom paste piece 15. Further, after the upper right piece 11 and the upper left piece 12 are bent, the top glued piece 10 is bent, and the insertion piece 16 is inserted in a state of being in contact with the inner wall surface of the rear plate 5. Finally, the top plate 7 is folded so as to cover the top glued piece 10 and the covering flap 8 is folded so as to cover the front plate 3, and the top plate 7 is adhered to the top glued piece 10, and the covering flap 8 is covered. Is bonded to the region 3c above the opening line 22b of the front plate 3.

  As shown in FIGS. 1 and 2, the main body 30 is a portion of the packaging box 1 that is closer to the top plate 7 than the hinge wire 21 and the opening wire 22, and contains contents (not shown). . Although the content is not specifically limited, For example, it is a daily necessities, a foodstuff, or a pharmaceutical. The opening portion 31 is a portion of the packaging box 1 that is closer to the bottom plate 2 than the hinge wire 21 and the opening wire 22.

  FIG. 4 is a front view showing an example of the packaging box according to the present embodiment. As shown in FIG. 4, the covering flap 8 covers an opening line 22 b formed on the front plate 3. That is, the lower end side 8a of the covering flap 8 is closer to the bottom plate 2 than the opening line 22b. The shape of the lower end side 8a of the covering flap 8 is not particularly limited as long as it covers the unsealing line 22b formed on the front plate 3. For example, the shape of the lower end side 8a protrudes downward in addition to the linear shape as shown in FIG. It may be a curved shape, a curved shape convex upward, or a wavy shape. Since the covering flap 8 covers the opening line 22b, the opening line 22b can be prevented from being unintentionally cut during transportation or storage.

  In the packaging box 1 according to the present embodiment, the distance T1 between the lower end side 8a of the covering flap 8 and the portion between the two cut lines 23 of the opening line 22b is preferably 5 mm or less. More preferably, it is 3 mm or less. By setting the distance T1 between the lower end side 8a of the covering flap 8 and the portion between the two cut lines 23 of the opening line 22b within an appropriate range, the user can open the covering flap 8 and the front plate 3 at the time of opening. The region 3c above the line 22b can be picked and pulled up at the same time, and proper opening can be performed more reliably. If the distance T1 exceeds 5 mm, only the covering flap 8 may be picked and opened. As a result, the covering flap 8 may be peeled off from the front plate 3, and only the covering flap 8 may be lifted up to prevent proper opening. The lower limit of the distance T1 between the lower end side 8a of the covering flap 8 and the portion between the two cut lines 23 of the opening line 22b is preferably more than 0 mm from the viewpoint of protecting the opening line 22b, and is 1 mm or more. It is more preferable. The distance T1 between the lower end side 8a of the covering flap 8 and the portion between the two cut lines 23 of the unsealing line 22b is the two cut lines of the unwrapping line 22b from an arbitrary point on the lower end side 8a of the covering flap 8. The length of the longest vertical line drawn in the part between 23.

Two cuts lines 23 extends to a position below the lower end edge 8a of the cover flap 8. The length T2 at which the two score lines 23 extend to a position below the lower end side 8a of the covering flap 8 is not particularly limited as long as the push-break region 25 can be pushed with a finger. is there. More preferably, it is 8-20 mm.

  Next, a more preferable form of the opening line 22 (22a, 22b, 22c) will be described.

  FIG. 5 is a right side view showing an example of the packaging box according to the present embodiment. In the packaging box 1 according to the present embodiment, the unsealing line 22a formed on the right side plate 4 has a linear first cut 201 and a front end of the first cut 201 on the cut line 23 (shown in FIG. 3) side. A plurality of bent line-like cut lines each having a linear second cut 202 extending obliquely and a line-like third cut 203 that is continuous with the end of the second cut 202 and is parallel to the extended line of the first cut 201. Preferably, 200 are arranged in a row via the connecting portions 204. Further, as shown in FIG. 2, the opening line 22 c formed on the left side plate 6 has a plurality of bent line-like cut lines 200, as shown in FIG. 2. Are preferably arranged in a line.

  Each cut 201-203 and the connection 204 which comprise the bending line-like cut line 200 are demonstrated. The first cut 201 may be curved as shown in FIG. 5, or may be linear (not shown) or linear such as a broken line having a bent portion (not shown). In FIG. 5, as an example, the first cuts 201 aligned as a whole form a convex curved shape on the top plate 7 side, but the present invention is not limited to this. Although the length of the 1st cut | interruption 201 is not specifically limited, For example, it is 3-15 mm. The second cut 202 has a linear shape (not shown) such as a straight line (shown in FIG. 5), a curved line (not shown), or a bent line shape (not shown) having a bent portion, and is preferably straight. Although the length of the 2nd cut | interruption 202 is not specifically limited, For example, it is 1-4 mm. When the first cut 201 is curved, the angle on the unsealed portion 31 side of the angle formed between the second cut 202 and the tangent drawn at the tip of the first cut 201 on the cut line 23 side is, for example, 30 to 60 °. It is. When the 1st cut 201 is linear, the angle by the side of the opening part 31 among the angles which the 2nd cut 202 and the 1st cut 201 make is 30-60 degrees, for example. The third cut 203 is linear, such as a straight line (shown in FIG. 5), a curved line (not shown), or a broken line having a bent portion (not shown), and is preferably a straight line. The length of the third cut 203 is not particularly limited, but is, for example, 1 to 3 mm. The joint 204 is a distance between the aligned first cuts 201, and the distance is not particularly limited, but is, for example, 0.5 to 4 mm.

  In the packaging box 1 according to the present embodiment, as shown in FIG. 4, the opening line 22b1 of the portion other than the push-break area 25 formed on the front plate 3 is (a) a linear first cut 301, A bent line-shaped cut line 300A composed of a linear second cut 302 extending obliquely from the tip of the first cut 301 on the cut line 23 side; and (b) a cut line 300B formed of a linear first cut 304. It is preferable to be a combination of.

  (A) A bent line 300A includes a first line 301 and a second line 302. The cut lines 301 and 302 constituting the bent line-shaped cut line 300A will be described. The first cut 301 may be a polygonal line having a bent portion 303 as shown in FIG. 4, or may be a linear shape (not shown) or a curved shape (not shown). Although the length of the 1st cut | interruption 301 is not specifically limited, For example, it is 3-15 mm. The second cut 302 has a linear shape (shown in FIG. 4), a broken line shape having a bent portion (not shown), or a curved shape (not shown), and is preferably linear. Although the length of the 2nd cut | interruption 302 is not specifically limited, For example, it is 1-4 mm. Of the angle formed between the second cut 302 and the first cut 301, the angle on the unsealed portion 31 side is, for example, 30 to 60 °. One bent line 300 or a plurality of bent line 300 may be arranged according to the length of the portion other than the push-break area 25 formed on the front plate 3. When a plurality of bent line-like cut lines 300 are arranged, the plurality of bent line-like cut lines 300 are arranged in a line via a connection (not shown). The connection (not shown) is a distance between the aligned first cuts 301, and the distance is not particularly limited, but is, for example, 0.5 to 4 mm.

  (B) The cut line 300B includes only the first cut 304. The first cut 304 may be linear as shown in FIG. 4, or may be linear such as a broken line having a bent portion (not shown) or a curved line (not shown). Of the unsealing line 22b formed on the front plate 3, the unsealing line 22b1 other than the tearing area 25 is shown in FIG. 4 as a combination of (a) and (b), but is not limited thereto. . As a first example of a modified form of the opening line 22b1, in FIG. 4, the second cut 302 constituting the cut line 300A is omitted and replaced with a cut line (not shown) consisting only of the first cut 301. is there. In the first example of this modification, the opening line 22b1 has only (b). Further, as a second example of a modified form of the opening line 22b1, in FIG. 4, the front end of the first cut 304 constituting the cut line 300B is shortened, and the first cut 304 side of the first cut 304 side. This is a form in which a second cut (not shown) extending obliquely with respect to the first cut 304 is provided at the tip. In the second example of this modification, the opening line 22b1 has only (a).

  Among the opening lines 22b formed on the front plate 3, the opening line 22b2 that divides the piercing region 25 has a plurality of linear cut lines 305 arranged in a line through the connecting portions 306, respectively. preferable. Pushing and breaking of the pushing break area 25 can be performed with a smaller force. The cut line 305 may be linear as shown in FIG. 4, or may be linear such as a broken line (not shown) or a curved line (not shown) having a bent portion.

  The opening lines 22a and 22c formed on the right side plate 4 and the left side plate 6 are bent line-like cut lines 200, and the opening line 22b formed on the front plate 3 is opened at a portion other than the breaking region 25. By setting the line 22b1 to (a), (b), or a combination of (a) and (b), the following effects can be obtained. That is, the opening line 22a formed on the right side plate 4 and the opening line 22c formed on the left side plate are exposed without being covered with a flap or the like, and are externally generated when the bag is unopened during transportation or storage. Strength that can resist impact is required. Therefore, by making the opening lines 22a and 22c have a relatively high strength, such as the bent line 200, the opening lines 22a and 22c are unintentionally unsealed during transportation or storage. Can be prevented from cutting. On the other hand, since the opening line 22b formed on the front plate 3 is covered with the covering flap 8, ease of opening is more important than impact resistance. In particular, the opening line 22b1 of the opening line 22b formed on the front plate 3 other than the push-break area 25 is a part cut by pulling up the covering flap 8, and therefore has a relatively weak structure. It can be opened with less force. Even if only the covering flap 8 is picked and an opening operation is performed, the covering flap 8 can be made difficult to peel off from the front plate 3. Thus, the front plate 3, the right side plate 4, and the left side plate 6 have different strengths required for the opening lines 22a, 22b1, and 22c, respectively, and are arranged by combining the opening lines with appropriate structures. Both unsealing properties and prevention of unintentional unsealing can be achieved.

  6 is a cross-sectional view taken along line XX in FIG. In the packaging box 1 according to the present embodiment, as shown in FIG. 6, the content 32 is a folded sheet-like material, and the folded sheet-like material is in contact with the inner surface of the push-out region 25. It is preferable to be stored in a state where The folded sheet is elastic as a whole. For this reason, the impact applied to the tearing area 25 from the outside is absorbed by the folded sheet-like material pushing the tearing area 25 from the inside of the box. As a result, the push-through area is not intended to be pushed through easily. Further, even if the push-through area 25 is unintentionally broken, it is difficult for the push-out area 25 to be pushed into the box, and the appearance of the product can be prevented from deteriorating. The sheet-like material is, for example, a storage bag such as a chuck bag (shown in FIG. 6), a garbage bag, a storage bag, a towel, a filter, or a deodorizing sheet. These are often distributed as a product containing a plurality of sheets, and are usually folded and accommodated in a box.

  FIG. 7 is a view showing a state in which the packaging box is opened. The opening operation of the packaging box 1 will be described with reference to FIG. First, the push-through area 25 is pressed toward the inside of the box with a finger. When the pushing area 25 is pressed with a finger, the opening line 22b2 (shown in FIG. 1) and the two cut lines 23 (shown in FIG. 1) are cut, and the breaking area 25 is used for packaging with the connecting line 24 as an axis. It turns inward of the box 1 and is pushed inward of the packaging box 1. Next, when a region 3c above the covering flap 8 and the opening line 22b of the front plate 3 is simultaneously picked and pulled up from the hole 42 formed by pushing through the breaking region 25, the opening line 22b1 (shown in FIG. 1) is obtained. Then, the opening lines 22a (shown in FIG. 1) and 22c (shown in FIG. 2) are cut. And the opening part 31 rotates back centering on the hinge wire | line 21 (illustrated in FIG. 2), and the packaging box 1 is opened. Thus, by simultaneously picking and pulling up the region 3c above the opening line 22b of the cover flap 8 and the front plate 3, the cover flap 8 is prevented from peeling off from the front plate 3 and only the cover flap 8 being pulled up. can do. Further, when reclosing after opening, the covering flap 8 is inserted inside the stepped portion 41.

  In the packaging box 1 according to the present embodiment, it is preferable to provide a display unit (not shown) for instructing to push the tearing area 25. The display unit (not shown) is, for example, “OPEN”, “PUSH”, or “push” printing provided in the push-through area 25. By providing the display unit, the user can be informed of a procedure that can ensure proper opening.

  In the packaging box 1 according to the present embodiment, a first display unit (not shown) indicating that the opening lines 22a and 22c formed on the right side plate 4 and the left side plate 6 are broken in advance, the right side plate 4 and It is preferable to have a second display portion (not shown) that instructs to push through the tearing area 25 after breaking the opening lines 22a and 22c formed on the left side plate 6. The first display unit (not shown) is, for example, printing provided on the right side plate 4 and the left side plate 6. The second display unit (not shown) is, for example, printing provided in the push-through area 25. By providing the first display unit and the second display unit, it is possible to convey a procedure that allows the user to surely perform proper opening.

  So far, as shown in FIGS. 1 and 2, the packaging box 1 has a vertically long rectangular parallelepiped shape in which the length in the left-right direction is smaller than the length in the up-down direction. However, the present invention is not limited thereto, and a horizontally long rectangular parallelepiped shape, a cubic shape, or a deformed shape thereof may be used. As the deformed shape, for example, the bottom plate 2 has a quadrangular shape with rounded corners, and connecting plates (not shown) standing from the rounded portion are the front plate 3, the right side plate 4, the rear side plate 5, and the left side plate 6. It is the form provided between each of these.

DESCRIPTION OF SYMBOLS 1 Packing box 2 Bottom plate 3 Front plate 3a Upper end 3b of front plate Lower end 3c of front plate Region 4 above opening line of front plate 4 Right side plate 4a Upper end side 4b of right side plate Lower end side 5 of right side plate Top plate 5a Rear plate upper edge 5b Rear plate lower edge 6 Left side plate 6a Left side plate upper edge 6b Left side plate lower edge 7 Top plate 7a Folding line 8 Covering flap 8a Covering flap lower edge 9 Attached piece 10a Folded crease line 11 Upper right piece 12 Left upper piece 13 Right lower piece 14 Left lower piece 15 Bottom glued piece 16 Insertion piece 21 Hinge wire 22 (22a, 22b, 22c) Opening wire 22b1, 22b2 Opening wire 23 Cut line 24 Connection Line 25 Push-and-break area 30 Main body 31 Unsealed part 32 Contents 41 Stepped part 100 Blank sheet 200 Bent line-shaped cut line 201 Linear first cut 202 Second cut 203 Third cut Line 204 Joint 300 Bent line-shaped cut line 300A, 300B Line 301 301 Line-shaped first line 302 Second line 303 Bent part 304 Line-shaped first line 305 Line-shaped line 306 Line B-S 2 Lines 23 distance T0 cut line length T1 distance T2 between the lower end side of the covering flap and the portion between the two cut lines of the opening line The two cut lines extend to a position below the lower end side of the covering flap Length to do

Claims (6)

A rectangular bottom plate, a front plate, a right side plate, a rear plate and a left side plate standing from each side of the bottom plate, and a top plate connected to the upper end side of the rear plate and facing the bottom plate A rectangular cylindrical box having
The rectangular tubular box has a covering flap connected to the top plate and partially covering the front plate from the upper end;
The rear plate is formed with a hinge line extending in the left-right direction, and an opening line connected to both ends of the hinge line is formed across the right side plate, the front plate and the left side plate,
The main body part including the bottom plate and containing the contents inside the hinge line and the opening line as a boundary, the main body part including the top surface plate, and rotating backward about the hinge line as an axis In a packaging box with an unsealing part for unsealing,
The covering flap is bonded to a region above the opening line of the front plate, and covers the opening line formed on the front plate,
The front plate includes the opening line, two cut lines extending downward from the opening line and extending to a position below the lower end side of the covering flap, and the two cut lines. have a press-breaking region partitioned by a connecting line connecting the lower ends,
The opening line formed on the front plate includes a pair of first opening lines that form stepped portions one by one, and a pair that is disposed one below the first opening line for each stepped portion. And a second opening line of
The packaging box , wherein the push-break region is sandwiched between the two stepped portions in the left-right direction . The opening line formed on the right side plate and the left side plate includes a linear first cut, a linear second cut extending obliquely from a tip of the first cut on the cut line side, and the second cut. A plurality of bent line-like cut lines having a line-like third cut line parallel to the extension line of the first cut line are arranged in a line through the respective connections,
The opening line of the portion other than the push-break region formed on the front plate is
(A) The first opening line that is a first cut line that is a bent line formed of a linear first cut and a linear second cut extending obliquely from the front end of the first cut on the cut line side. The packaging box according to claim 1, comprising:   The opening line of the portion other than the push-break region formed on the front plate is
(B) A combination with a second cut line consisting of a linear first cut.
  The packaging box according to claim 2. Wherein a content of the sheet which is folded, according to claim 1 to 3 for sheet bent該折, characterized in that it is housed in a state of contact with the inner surface of the press-breaking region A packaging box according to any one of the above. The distance of the lower end side of the covering flap and the portion between the two score line of the tear line, for packaging according to any one of claims 1-4, characterized in that it is 5mm or less box. The packaging box according to any one of claims 1 to 5 , further comprising a display unit for instructing to push and tear in the push-break region.

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