JP3211067U - Packaging box - Google Patents

Abstract

The present invention provides a packaging box that facilitates the release of the connection between a body box and a lid and ensures that the body box expands in conjunction with opening. A packaging box (1) is formed on one surface of a body box (2) including a plurality of side plates (11) and end surface plates (12) provided in a standing posture on a peripheral edge of a bottom plate (10) via a ruled line (15). A lid 3 formed so as to be able to close the top opening, and the plurality of side plates and the end plates are separated from each other in a standing posture with respect to the bottom plate, Covered between the pair of side plates, the lid plate 20 is connected to both ends of the lid plate in the erection direction, and covers the pair of side plates with the top plate being closed by the lid plate. A pair of bonded portions 21 to be bonded. The plurality of side face plates 11 and end face plates 12 tilt outward with the ruled line 15 as a fulcrum when the one joint portion 21 is peeled off from the body box and the lid face plate can be opened. [Selection] Figure 1

Description

  The present invention relates to a packaging box.

  A packaging box that is sealed by bonding a lid to a body box is known.

  For example, the box described in Patent Literature 1 includes a box body for packing and a lid that seals the mouth of the box body. The box body is formed in a bottomed cylindrical shape by raising four side pieces with respect to the bottom piece and bending the four ear pieces so as to face the outer surface of the side piece. The lid has four side hanging pieces that hang from the four sides of the top piece. The lid is placed on the outside of the box body, and the four side pieces are bonded to the four surfaces of the box body via an adhesive. That is, each side piece is bonded to the side piece or the pair of ear pieces. In this box body, the side piece and the ear piece are not bonded, so when the four side hanging pieces are peeled off from the box body, the box body naturally recovers by its own restoring force (force to return to the packing paper). Be expanded. That is, the box body automatically unfolds in conjunction with opening of the box and returns to a single sheet of packing paper.

JP 09-286409 A

  However, since the lid is adhered to the four surfaces of the box body in the above-described box, a complicated operation of peeling off the four side hanging pieces one by one from the box body is necessary. For this reason, the box could not be opened easily and quickly. In addition, since the side piece is bonded over the pair of ear pieces, it is considered that the adhesive adheres to the joint between the pair of ear pieces or the joint between the ear piece and the side piece. In this case, even if each side piece is peeled off from the box body, the ear piece is not separated from the adhesive, so that the development of the box body linked to the opening of the box may be hindered.

  In order to solve the above-mentioned problems, the present invention provides a packaging box that facilitates the release of the connection between the body box and the lid and ensures that the body box is unfolded in conjunction with opening.

  In order to achieve the above-described object, a packaging box of the present invention is formed on one surface of a body box including a plurality of peripheral plates provided in a standing posture on a peripheral edge of a bottom plate via a ruled line. A lid body formed so as to be able to close the opening, and the plurality of peripheral plates are separated from each other in a standing posture with respect to the bottom plate, and the lid body includes the opening portion. A lid surface plate that is bridged between the pair of peripheral surface plates that are located between the lid surface plate and closes the opening portion, and is connected to both ends of the lid surface plate in the erection direction. A pair of joint portions bonded to the pair of peripheral surface plates in a closed state, and the plurality of peripheral surface plates peel off one of the joint portions from the body box and close the opening portion. Tilted outward with the ruled line as a fulcrum That.

  In order to achieve the above-described object, a packaging box of the present invention is formed on one surface of a body box including a plurality of peripheral plates provided in a standing posture on a peripheral edge of a bottom plate via a ruled line. A lid body formed so as to be able to close the opening, and the plurality of peripheral plates are separated from each other in a standing posture with respect to the bottom plate, and the lid body includes the opening portion. A lid surface plate that is bridged between the pair of peripheral surface plates that are located between the lid surface plate and closes the opening portion, and is connected to both ends of the lid surface plate in the erection direction. A pair of joints bonded to the pair of peripheral surface plates in a closed state, and an opening line that cuts at least one of the lid surface plate and one of the joints to release the connection with the body box. The plurality of peripheral plates cut the lid body with the opening line, and the opening When the occluded state capable opening the cover faceplate has a tilted outwardly the border as a fulcrum.

  In this case, it is preferable that the unsealing line is formed along the unsealing direction that intersects the erection direction at a boundary between the lid surface plate, the one joint portion, or the lid surface plate and the one joint portion.

  In this case, it is preferable that the unsealing line is formed in a state extending from the one joining portion to the lid face plate.

  In this case, the pair of joints are bonded to the pair of peripheral plates via an adhesive attached to a part thereof, and the unsealing line is formed to surround the adhesive at the one joint. Preferably it is.

  In this case, the body box includes a pair of side plates as the peripheral plate provided in a state of being connected to both ends of the bottom plate in the erection direction, and both ends in the length direction orthogonal to the erection direction of the bottom plate. A pair of end face plates as the peripheral face plate provided in a state of being connected to each other, and four inwardly folded face plates provided in a state of being connected to both ends in the erection direction of the end face plates via the ruled lines, A pair of flaps provided in a state of being connected to the both outer ends in the length direction of each end face plate via the ruled line, and the pair of side face plates and the pair of ends with respect to the bottom face plate In the state where the face plate is in an upright posture, the four inner folding face plates are folded inward along the ruled line with respect to the pair of end face plates, and are provided to face the inner surfaces of the pair of side face plates. The flap is in front of the pair of end plates. It is preferred to be folded inwardly borders are provided in a state extending toward the opening.

  In this case, the body box and the lid body are each composed of corrugated cardboard with liners attached to the front and back of the inner shin, and the inner shin of the lid body is provided in a state extending in the erection direction, It is preferable that the said inner shin of a body box is provided in the state extended in the said length direction.

  In this case, it is preferable that both ends in the length direction of the lid face plate are bonded to a part of the pair of flaps.

  According to the present invention, the connection between the body box and the lid can be easily released. In addition, it is possible to ensure that the body box expands in conjunction with the opening of the packaging box.

It is a perspective view which shows the packaging box which concerns on 1st Embodiment of this invention. It is a disassembled perspective view which shows the packaging box which concerns on 1st Embodiment of this invention. It is a top view which shows the body box of the packaging box which concerns on 1st Embodiment of this invention, and the blank of a cover body. It is a perspective view which shows the state which opened the packaging box which concerns on 1st Embodiment of this invention. It is a perspective view which shows the packaging box which concerns on the modification of 1st Embodiment of this invention. It is a perspective view which shows the opening process of the packaging box which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the packaging box which concerns on the 1st modification of 2nd Embodiment of this invention. It is a top view which shows the blank of the cover body of the packaging box which concerns on the 2nd modification of 2nd Embodiment of this invention. It is a perspective view which shows the packaging box which concerns on the 3rd modification of 2nd Embodiment of this invention. It is a perspective view which shows the packaging box which concerns on 3rd Embodiment of this invention. It is a perspective view which shows the packaging box which concerns on 4th Embodiment of this invention. It is a perspective view which shows the opening process of the packaging box which concerns on 4th Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the present specification, terms indicating directions and positions are used, but these terms do not limit the technical scope of the present invention.

<First Embodiment: Outline of Packaging Box>
With reference to FIG. 1 thru | or FIG. 3, the packaging box 1 which concerns on 1st Embodiment is demonstrated. FIG. 1 is a perspective view showing the packaging box 1. FIG. 2 is an exploded perspective view showing the packaging box 1. FIG. 3 is a plan view showing the body box 2 of the packaging box 1 and the blanks 2 </ b> A and 3 </ b> A of the lid 3.

  As shown in FIGS. 1 and 2, the packaging box 1 includes a body box 2 and a lid 3. The packaging box 1 is a so-called telescope type (two-piece structure) cardboard box in which a body box 2 and a lid 3 are separated. The body box 2 includes a pair of side plates 11 and a pair of end face plates 12 (a plurality of peripheral plates) provided in a standing posture on the four sides (peripheries) of the bottom plate 10 via ruled lines 15. That is, the body box 2 is formed in a square tube shape with a bottom having an upper surface opened. The lid 3 is formed so as to be able to close the upper surface opening 16 formed on the upper surface of the body box 2. The packaging box 1 is sealed by closing the top opening 16 of the body box 2 with the lid 3 (see FIG. 1).

  The body box 2 and the lid 3 are formed by assembling blanks 2A and 3A shown in FIG. Each of the blanks 2A and 3A is formed by punching a piece of paper cardboard with a paper punching device. For example, the corrugated cardboard is formed by attaching a front liner 4B and a back liner 4C (see FIG. 2) on the front and back of a corrugated central shin 4A. FIG. 3 shows the front liner 4B side (the outer surface side of the packaging box 1). In the present specification, a direction parallel to the corrugated center 4A of the cardboard is referred to as a “step direction”, and a direction orthogonal to the step direction is referred to as a “flow direction”. In the drawing, “X” indicates “stage direction”, and “Y” indicates “flow direction”.

<Structure of body box>
As shown in FIG. 3, the blank 2 </ b> A of the body box 2 includes a bottom plate 10, a pair of side plates 11, a pair of end plate 12, four inward folding plates 13, and a pair of flaps 14. It is out. The blank 2A is formed in a substantially rectangular plate shape that is longer in the step direction than the flow direction as a whole.

  The bottom plate 10 is formed in a substantially rectangular shape that is long in the step direction. The pair of side plates 11 are provided in a state of being connected via ruled lines 15 at both ends in the flow direction of the bottom plate 10. The side plate 11 is formed in a substantially rectangular shape having substantially the same dimensions as the bottom plate 10 in the step direction. The dimension of the side plate 11 in the flow direction is shorter than the dimension of the bottom plate 10 in the flow direction. The pair of end face plates 12 are provided in a state of being connected to both ends in the step direction of the bottom face plate 10 via ruled lines 15. The end face plate 12 is formed in a substantially rectangular shape having substantially the same dimension as the bottom face plate 10 in the flow direction. The dimension in the step direction of the end face plate 12 is substantially the same as the dimension in the flow direction of the side face plate 11.

  The four inwardly folded face plates 13 are provided in a state of being connected via ruled lines 15 at both ends in the flow direction of the end face plates 12. The inner folding face plate 13 is formed in a substantially rectangular shape having substantially the same dimensions as the end face plate 12 in the step direction. The dimension in the flow direction of the inner folding face plate 13 is substantially the same as the dimension in the flow direction of the side face plate 11. The pair of flaps 14 are provided in a state of being connected to the stepwise outer ends (tips) of the pair of end face plates 12 via ruled lines 15. The flap 14 is formed in a substantially rectangular shape having substantially the same dimensions as the end face plate 12 in the flow direction. The length of the flap 14 in the step direction is sufficiently shorter than the length of the end plate 12 in the step direction. The ruled line 15 is formed by squashing the corrugated cardboard in the thickness direction from the back liner 4C side.

<Configuration of lid>
As shown in FIG. 3, the blank 3 </ b> A of the lid 3 includes a lid surface plate 20 and a pair of joint portions 21. The blank 3A is generally formed in a plate shape of a substantially square shape (precisely, a substantially rectangular shape slightly longer in the flow direction than in the step direction).

  The lid surface plate 20 is formed in a rectangular shape having substantially the same size as the bottom surface plate 10 of the body box 2. The pair of joint portions 21 are provided in a state of being connected to both ends in the step direction of the lid surface plate 20 via ruled lines 22 (similar to the ruled lines 15). The joining portion 21 is formed in a substantially rectangular shape having the same dimensions as the lid face plate 20 in the flow direction. The dimension in the step direction of the joint portion 21 is sufficiently shorter than the dimension in the step direction of the lid surface plate 20. Moreover, the dimension in the step direction of the joint portion 21 is sufficiently shorter than the height of the body box 2 (see FIG. 1).

<Packaging box assembly process>
Here, with reference to FIG. 1 and FIG. 2, the assembly process of the packaging box 1 is demonstrated. The packaging box 1 may be assembled manually by an operator, or may be assembled automatically or semi-automatically by a box making machine. Here, the case where an operator assembles the packaging box 1 will be described.

  The body box 2 is assembled by bending the face plates 10 to 14 of the blank 2 </ b> A with the back liner 4 </ b> C facing upward along the ruled line 15. First, an operator bends each end face plate 12 with respect to the bottom face plate 10 to bend, and each inner fold face plate 13 is bent inward. Subsequently, the worker bends the side plates 11 so as to stand up with respect to the bottom plate 10 and bends the flaps 14 inward.

  Thus, the body box 2 is assembled (see FIG. 2). In a state where the pair of side surface plates 11 and the pair of end surface plates 12 are in the standing posture with respect to the bottom surface plate 10, the four inner folding surface plates 13 are folded inwardly along the ruled lines 15 with respect to the pair of end surface plates 12. Is provided to face the inner surface of the side plate 11. Further, in this state, the pair of flaps 14 is provided in a state of being folded inward along the ruled line 15 with respect to the pair of end face plates 12 and extending toward the upper surface opening 16. Not only the above assembly procedure, but also each end face plate 12 may be bent after each inner folded face plate 13 or each flap 14 is folded.

  By the way, each side plate 11, each end surface plate 12, and each inner folding surface plate 13 are not fixed (connected) to each other. In other words, each side plate 11 and each end plate 12 are separated from each other in a standing posture with respect to the bottom plate 10. Therefore, if the operator does not hold down the face plates 11, 12, etc., the body box 2 returns to the flat state (blank 2A) before assembly.

  Next, the operator configures the packaging box 1 sealed by closing the upper surface opening 16 of the body box 2 with the lid 3. It should be noted that the contents such as the products stored in the packaging box 1 may be arranged on the bottom plate 10 before assembling the body box 2, or the contents inside the body box 2 from the upper surface opening 16 after the body box 2 is assembled. May be accommodated.

  An operator positions the lid face plate 20 of the lid 3 on the top box 16 and places it on the body box 2. The lid surface plate 20 is bridged between the pair of side surface plates 11 positioned with the upper surface opening 16 interposed therebetween, and closes the upper surface opening 16. In this state, each of the pair of joint portions 21 extends outward from the pair of side plates 11. The central shin 4A of the lid 3 is provided in a state extending in the direction in which the lid face plate 20 is erected. Further, the shin 4 </ b> A of the body box 2 is provided in a state of extending in the length direction orthogonal to the direction in which the lid face plate 20 is erected.

  Subsequently, the worker attaches the adhesive G in a substantially dotted shape (substantially circular shape) to the adhesive surface 17 set on the upper outer surface of the pair of side plates 11. A plurality of substantially dotted adhesives G adhere to the bonding surface 17 at substantially equal intervals in the step direction. The operator bends the pair of joint portions 21 downward along the ruled line 22. The pair of joint portions 21 are bonded to the pair of side surface plates 11 (adhesion surface 17) in a state where the upper surface opening 16 is closed by the lid surface plate 20.

  As described above, the body box 2 and the lid 3 are connected, and the packaging box 1 is sealed (see FIG. 1). Since the pair of side plates 11 are connected to the lid body 2, the pair of side plates 11 are maintained in the standing posture without falling down. Since the lid body 2 (the lid surface plate 20) presses the pair of flaps 14 from above, the pair of end surface plates 12 are also maintained in the standing posture without falling down. In addition, although the adhesive G was made to adhere to the front liner 4B (adhesion surface 17) of the side surface board 11, you may adhere to the back liner 4C of the junction part 21 not only in this. As the adhesive G, for example, a hot melt adhesive, a synthetic resin emulsion adhesive, a double-sided tape, or the like can be used.

<Opening the packaging box>
Next, with reference to FIG. 4, opening of the packaging box 1 is demonstrated. FIG. 4 is a perspective view showing a state in which the packaging box 1 is opened.

  The packaging box 1 is opened by releasing the connection between the body box 2 and the lid 3. The user peels off at least one of the pair of joint portions 21 from the side plate 11 against the adhesive force of the adhesive G. When the user completely removes one of the joint portions 21 from the side plate 11, the connection between the body box 2 and the lid 3 is released. That is, the packaging box 1 is opened.

  Here, as already described, the face plates 11 to 13 are not connected to each other. When the connection between the body box 2 and the lid 3 is released, the lid 2 cannot press the side plate 11 and the end plate 12. For this reason, each faceplate 11 and 12 shown with the dashed-two dotted line in FIG. 4 cannot maintain a standing posture. Therefore, the side surface plate 11 and the end surface plate 12 fall outside with the ruled line 15 (boundary with the bottom surface plate 10) as a fulcrum, due to the restoring force (elastic force) of the bent portion with the bottom surface plate 10 and the weight of the side surface plate 11 and end surface plate 12 (See the two-dot chain arrow in FIG. 4). At this time, each inner folding face plate 13 is rotated outward by the restoring force of the bent portion with the end face plate 12 to push the side face plate 11 outward. Further, the lid 3 bonded to the side plate 11 via the other joining portion 21 also falls down together with the side plate 11. As described above, the body box 2 is expanded (disassembled) in conjunction with the opening of the packaging box 1, and almost returns to the state of the blank 2A before assembly. Then, the user takes out the contents from the expanded body box 2. The unfolded blank 2A of the body box 2 is in a state with some creases.

  In the packaging box 1 according to the first embodiment described above, the lid 3 is connected to the body box 2 by bonding a pair of joint portions 21 to a pair of side plates 11 sandwiching the top opening 16. did. That is, the lid 3 is connected to the body box 2 at two locations. According to this configuration, the connection between the body box 2 and the lid body 3 can be released by peeling off one joint portion 21 from the side plate 11. Thereby, connection release of the body box 2 and the cover body 3 can be performed easily.

  Further, in the packaging box 1 according to the first embodiment, the side surface plate 11 and the end surface plate 12 are in a state in which one of the joint portions 21 is peeled off from the body box 2 and the lid surface plate 20 that closes the upper surface opening 16 can be opened. In this case, the ruled line 15 is provided so as to be tilted outward with the ruled line 15 as a fulcrum. That is, when the connection between the body box 2 and the lid 3 is released, the four face plates 11, 12 and the like fall down in the radial direction. According to this configuration, the body box 2 can be automatically (naturally) deployed in conjunction with opening of the packaging box 1. Thereby, the user can take out the contents accommodated in the body box 2 easily and quickly. Moreover, since the packaging box 1 (the body box 2) after being opened is in a disassembled state, the trouble of disassembling the used packaging box 1 for disposal can be saved. That is, the disposal work of the packaging box 1 can be facilitated.

  Moreover, in the packaging box 1 which concerns on 1st Embodiment, in the state which assembled the body box 2, each inner folding surface board 13 is arrange | positioned inside the side plate 11, and the junction part 21 is adhere | attached on the outer surface of the side plate 11. FIG. The configuration. According to this configuration, it is possible to prevent the adhesive G from adhering to a position (for example, a joint between the inner folded face plate 13 and the side face plate 11) that inhibits the tilt of the side face plate 11. When the connection between the body box 2 and the lid 3 is released, each inner folded face plate 13 rotates outward with the ruled line 15 as a fulcrum to push the side face plate 11 outward. Thereby, it can be guaranteed that the face plates 11 and 12 automatically fall in conjunction with opening of the packaging box 1.

  In the packaging box 1, the pair of flaps 14 is configured to block the gap between both end portions in the flow direction (length direction) of the lid 3 and the upper surface opening 16. According to this structure, it is not necessary to adhere | attach the flow direction both ends of the cover body 3 to the body box 2, and the increase in the number of the adhesion surfaces 17 can be suppressed. Thereby, connection cancellation | release of the body box 2 and the cover body 3 can be performed easily and rapidly.

  In addition, in the packaging box 1 which concerns on 1st Embodiment, although the cover body 3 adhere | attached a pair of junction part 21 on a pair of side plate 11, this invention is not limited to this. For example, as shown in FIG. 5, in addition to the bonding between each joint portion 21 and each side plate 11, both ends in the flow direction (length direction) of the lid surface plate 20 are bonded to a part of the pair of flaps 14. It may be. In this case, since the adhesion between each flap 14 and the lid plate 20 is auxiliary, a substantially dotted adhesive G is applied to one location of each flap 14 (or both ends in the flow direction of the lid plate 20). That's fine. When opening the packaging box 1, the user peels off one of the joint portions 21 from the side plate 11 (adhesive surface 17), and then lifts the lid plate 20 upward to peel it off from the pair of flaps 14. Thus, since the adhesion release of the one joint portion 21 and the lid plate 20 with respect to the body box 2 can be continuously performed, the opening operation of the packaging box 1 can be easily performed.

Second Embodiment
Next, with reference to FIG. 6, the packaging box 5 which concerns on 2nd Embodiment is demonstrated. FIG. 6 is a perspective view showing an opening process of the packaging box 5. In addition, in the following description, the same code | symbol is attached | subjected about the structure similar to the packaging box 1 which concerns on 1st Embodiment, and the same description is abbreviate | omitted.

  In the packaging box 5 according to the second embodiment, the lid body 30 includes an opening line 31 that cuts one of the joint portions 21 to release the connection with the body box 2. The unsealing line 31 is formed along the unsealing direction at one joint portion 21. In the following description, for the sake of convenience, the joining portion 21 on which the opening line 31 is formed is referred to as an “opening portion 21A”. Further, the opening direction refers to a direction (a direction parallel to the flow direction) orthogonal to (crossing) the installation direction of the lid face plate 20. In addition, “W” shown in the drawing indicates the opening direction. Further, in the following description, “upstream” and “downstream” and similar terms refer to “upstream” and “downstream” in the opening direction and similar concepts.

  The opening portion 21A is divided into a remaining portion 32 and a removal portion 33 with the opening line 31 in between. The remaining portion 32 is provided in a state of being connected to one end in the step direction of the lid face plate 20 via the ruled line 22. The removal portion 33 is provided in a state of being connected to one end in the step direction of the remaining portion 32 via the opening line 31. The removal portion 33 is formed in a strip shape wider than the remaining portion 32 in the step direction. The back liner 4 </ b> C of the removing unit 33 constitutes a mating surface that is bonded to the bonding surface 17 via the adhesive G.

  The unsealing line 31 is formed in a state extending substantially parallel to the ruled line 22 of the lid 3. The unsealing line 31 is a so-called zipper formed by arranging a plurality of cuts 31 </ b> A at intervals (substantially equidistant) in the opening direction. The opening line 31 is formed so as to be cut along a plurality of cuts 31A.

  Each cut 31A is formed by penetrating a blade in the thickness direction of the cardboard. Each cut 31A includes a straight portion 31B and a guide portion 31C. The straight portion 31B is formed by being cut linearly along the opening direction. The guide portion 31C is formed on the upstream side of the straight portion 31B. The guide portion 31C is formed to be inclined upstream from the straight portion 31B toward the removal portion 33 side. In addition, 31 C of guidance | induction parts incline about 30 degree | times with respect to the linear part 31B.

  When opening the packaging box 5, the user holds the upstream end of the removing unit 33 in the opening direction and pulls it in the opening direction. The removal portion 33 is peeled off from the adhesive surface 17 (or adhesive G) while being cut from the remaining portion 32 along the opening line 31. When the user peels the removal portion 33 to the downstream end and removes it from the adhesive surface 17, the connection between the body box 2 and the lid body 30 is released. That is, the packaging box 5 is opened. Then, similarly to the packaging box 1 according to the first embodiment, the body box 2 is expanded (disassembled) in conjunction with opening of the packaging box 5 (see FIG. 4).

  According to the packaging box 5 which concerns on 2nd Embodiment demonstrated above, the connection of the body box 2 and the cover body 30 is cancelled | released by dividing | segmenting one junction part 21 (opening part 21A) along the opening line 31. FIG. be able to. Thereby, the opening operation | work of the packaging box 5 can be performed easily.

  Moreover, in the packaging box 5 which concerns on 2nd Embodiment, the side surface board 11 and the end surface board 12 cut | disconnect the cover body 30 with the opening line 31, and are in the state which can open | release the cover surface board 20 which obstruct | occluded the upper surface opening part 16. In this case, the ruled line 15 is tilted outward with the ruled line 15 as a fulcrum. According to this structure, the effect | action and effect similar to the packaging box 1 which concern on above-described 1st Embodiment can be acquired.

  In addition, in the packaging box 5 which concerns on 2nd Embodiment, although the unsealing line 31 (zipper) cut | disconnects one junction part 21 (opening part 21A), this invention is not limited to this. For example, as shown in FIG. 7, the opening line 31 may cut the lid surface plate 20 of the lid body 30 to release the connection with the body box 2 (first modification). In this case, the opening line 31 is formed along the opening direction (flow direction) in the lid face plate 20. Further, for example, as shown in FIG. 8, the opening line 31 may be formed along the opening direction (flow direction) at the boundary between the cover plate 20 and the one joint portion 21 (opening portion 21 </ b> A) (first direction). 2 modification). That is, the opening line 31 may be formed on the ruled line 22.

  Moreover, in the packaging box 5 which concerns on 2nd Embodiment, although the unsealing line 31 was comprised with the zipper, this invention is not limited to this. For example, as shown in FIG. 9, the opening line 35 may be a cut tape attached along the opening direction on the back liner 4 </ b> C of the lid surface plate 20. (Third modification). In addition, the opening line 35 (cut tape) may be affixed on the back liner 4C of one joining part 21 (opening part 21A) (not shown).

<Third Embodiment>
Next, with reference to FIG. 10, the packaging box 6 which concerns on 3rd Embodiment is demonstrated. FIG. 10 is a perspective view showing the packaging box 6. In addition, in the following description, the same code | symbol is attached | subjected about the structure similar to the packaging boxes 1 and 5 which concern on 1st and 2nd embodiment, and the same description is abbreviate | omitted.

  In the packaging box 6 according to the third embodiment, a pair of opening lines 41 included in the lid 40 is different from the packaging box 5 (such as the opening line 31) according to the second embodiment. The pair of unsealing wires 41 are formed in a state extending from the one joining portion 21 (opening portion 21A) to the lid surface plate 20.

  The pair of opening lines 41 are so-called zippers formed by arranging a plurality of cut lines 31A. The pair of opening lines 41 are formed so as to be symmetric when viewed from the opening portion 21A side. The starting end of each unsealing line 41 is formed in a substantially central region in the flow direction of the unsealing portion 21A. The pair of unsealing lines 41 extend in a step direction from the free end of the unsealing portion 21 </ b> A toward the ruled line 22, and then obliquely extend toward both outer ends in the flow direction of the lid face plate 20. The terminal portion of each unsealing line 41 is formed at the center in the step direction at both outer ends in the flow direction of the lid face plate 20.

  When opening the packaging box 6, the user holds the opening portion 21 </ b> A between the pair of opening lines 41 and pulls it obliquely upward. The unsealed portion 21A is peeled off from the adhesive surface 17 (or adhesive G) while being cut along the pair of unsealed lines 41. When the opening portion 21 </ b> A is cut to the ruled line 22, the lid face plate 20 is cut along the pair of opening lines 41. When the user finishes pulling the lid face plate 20 to the end portion of each opening line 41, the lid 40 is in a state of being divided. That is, the packaging box 6 is opened. Then, similarly to the packaging boxes 1 and 5 according to the first and second embodiments, the body box 2 is expanded (disassembled) in conjunction with the opening of the packaging box 6 (see FIG. 4).

  According to the packaging box 6 which concerns on 3rd Embodiment demonstrated above, the effect | action and effect similar to the packaging boxes 1 and 5 which concern on the 1st and 2nd embodiment mentioned above can be acquired.

<Fourth embodiment>
Next, with reference to FIG. 11 and FIG. 12, the packaging box 7 which concerns on 4th Embodiment is demonstrated. FIG. 11 is a perspective view showing the packaging box 7. FIG. 12 is a perspective view showing a process of opening the packaging box 7. In addition, in the following description, the same code | symbol is attached | subjected about the structure similar to the packaging boxes 1, 5, and 6 concerning 1st-3rd embodiment, and the same description is abbreviate | omitted.

  By the way, as described above, the adhesive G does not continuously adhere to the adhesive surface 17 but discretely adheres to a plurality of locations on the adhesive surface 17. Therefore, the pair of joint portions 21 are bonded to the pair of side plates 11 via the adhesive G attached to a part thereof.

  As shown in FIG. 11, in the packaging box 7 according to the fourth embodiment, the plurality of unsealing lines 51 included in the lid body 50 are the packaging boxes 5 and 6 according to the second or third embodiment (opening lines 31, 41). The plurality of opening lines 51 are formed so as to surround the substantially dotted adhesive G in one joining portion 21 (opening portion 21A).

  The plurality of opening lines 51 are formed in accordance with the places where the plurality of adhesives G are attached. Each opening line 51 is formed in a substantially elliptical shape that is slightly longer in the flow direction. Each opening line 51 is a so-called sewing line formed by arranging a plurality of cuts 51A in a substantially elliptical shape. Each cut 51 </ b> A is a full cut line formed by penetrating a blade in the thickness direction of the cardboard.

  When opening the packaging box 7, as shown in FIG. 12, the user holds the lower end portion of the opening portion 21A and pulls it obliquely upward. The opening part 21A is cut along the plurality of opening lines 51, and the connection between the body box 2 and the lid 50 is released. Specifically, since the inner part of each opening line 51 is maintained in a state of being adhered to the adhesive G, the outer part of each opening line 51 is separated from the inner part of each opening line 51. That is, the opening part 21 </ b> A is in a state where the inner part of each opening line 51 is pulled out. In this state, the packaging box 7 is opened, and the body box 2 is developed (disassembled) in the same manner as the packaging boxes 1, 5, 6 according to the first to third embodiments (see FIG. 4).

  According to the packaging box 7 which concerns on 4th Embodiment demonstrated above, the effect | action and effect similar to packaging box 1,5,6 which concerns on the above-mentioned 1st-3rd embodiment can be acquired. Note that it is sufficient that one or more opening lines 51 are provided.

  In addition, in the packaging boxes 1, 5-7 which concern on 1st-4th embodiment (The modification of 1st Embodiment and the 1st-3rd modification of 2nd Embodiment are included. Although 17 is provided in the side plate 11, this invention is not limited to this. For example, the adhesive surface 17 may be provided on the end face plate 12 (not shown). That is, the lid bodies 3, 30, 40, 50 may be bridged between the pair of end face plates 12 to close the upper surface opening 16.

  Moreover, in the packaging boxes 5 and 7 which concern on 2nd and 4th embodiment, although the unsealing line 31 (35) and 51 was formed in one junction part 21 (opening part 21A) among a pair of junction parts 21. FIG. The present invention is not limited to this. For example, the opening lines 31 (35) and 51 may be formed in the pair of joint portions 21. Even in this case, the packaging boxes 5 and 7 can be opened by the unsealing lines 31 (35) and 51 of one joint portion 21.

  Further, in the packaging boxes 5 and 6 according to the second and third embodiments, the unsealing lines 31 and 41 are configured by so-called zippers. However, the present invention is not limited to this. For example, a plurality of straight cut lines (all cutting lines) ) May be composed of sewing lines arranged in the opening direction (not shown). In addition, the unsealing lines 31 and 41 may be formed by cutting only the back liner 4C, or half cut lines that are cut from the back liner 4C to the middle (substantially half) in the thickness direction of the cardboard. Similarly, in the packaging box 7 according to the fourth embodiment, each cut line 51 </ b> A of the opening line 51 is configured by a full cut line, but is not limited thereto, and may be a half cut line.

  Further, in the packaging boxes 1, 5 to 7 according to the first to fourth embodiments, since the bottom plate 10 is substantially rectangular, the body box 2 is formed in a substantially rectangular tube shape. It is not limited. For example, the bottom plate may be formed in a polygonal shape other than a quadrangle. In this case, the body box is formed in a cylindrical shape having a polygonal cross section by providing a peripheral surface plate on each side of the bottom surface plate. Moreover, it is preferable that a cover body is formed in the shape matched with the polygonal cross section of the body box. Further, as the body box, a so-called semi-A type body box in which a pair of outer flaps are abutted to constitute a bottom plate may be used.

  Moreover, in the packaging boxes 1, 5-7 which concern on 1st-4th embodiment, although blank 2A of the body box 2 was formed in the substantially rectangular shape long in the step direction as a whole, not only this but the whole Alternatively, it may be formed in a substantially rectangular plate shape that is longer in the flow direction than the step direction, or may be formed in a substantially square plate shape as a whole. Similarly, the lid bodies 3, 30, 40, and 50 (the blank 3A) may be formed in a substantially rectangular plate shape that is longer in the step direction than the flow direction as a whole. It may be formed in a substantially rectangular plate shape that is longer in the flow direction than in the direction.

  Moreover, although the packaging boxes 1, 5-7 which concern on 1st-4th embodiment were formed with the paper-made cardboards, you may be formed with not only this but cardboard. Moreover, although the adhesive agent G was affixed to the adhesion surface 17 (or junction part 21) at substantially dot shape, it is not restricted to this, Except for the packaging box 7 which concerns on 4th Embodiment, it follows along an opening direction. It may be attached substantially linearly.

  Moreover, also in the packaging boxes 5-7 which concern on 2nd-4th embodiment, the lid | cover of each cover body 30,40,50 similarly to the packaging box 1 (refer FIG. 5) which concerns on the modification of 1st Embodiment. The face plate 20 may be bonded to each flap 14 via an auxiliary adhesive G.

  In addition, description of the said embodiment shows the one aspect | mode of the packaging box based on this invention, Comprising: The technical scope of this invention is not limited to the said embodiment.

1, 5, 6, 7 Packaging box 2 Body box 3, 30, 40, 50 Lid 4A Middle shin 4B Front liner 4C Back liner 10 Bottom plate 11 Side plate (Surface plate)
12 End plate (circumferential plate)
13 Inner folded face plate 14 Flap 15 Ruled line 16 Upper surface opening (opening)
20 Lid face plate 21 Joint 31, 35, 41, 51 Opening line G Adhesive

Claims (8)

A body box (2) including a plurality of peripheral plates (11, 12) provided in a standing posture on the periphery of the bottom plate (10) via ruled lines (15);
A lid (3) formed so as to be able to close an opening (16) formed on one surface of the body box,
The plurality of peripheral plates are separated from each other in a standing posture with respect to the bottom plate,
The lid is
A lid face plate (20) that is bridged between the pair of peripheral face plates positioned across the opening and closes the opening;
A pair of joint portions (21) provided in a state of being connected to both ends of the lid surface plate in the erection direction, and being bonded to the pair of peripheral surface plates in a state in which the opening portion is closed with the lid surface plate;
The plurality of peripheral plates tilt outward with the ruled line as a fulcrum when one of the joints (21) is peeled off from the body box and the lid plate closing the opening is made openable. A packaging box (1) characterized by that. A body box (2) including a plurality of peripheral plates (11, 12) provided in a standing posture on the periphery of the bottom plate (10) via ruled lines (15);
A lid (30, 40, 50) formed so as to be able to close the opening (16) formed on one surface of the body box,
The plurality of peripheral plates are separated from each other in a standing posture with respect to the bottom plate,
The lid is
A lid face plate (20) that is bridged between the pair of peripheral face plates positioned across the opening and closes the opening;
A pair of joint portions (21) which are provided in a state of being connected to both ends of the lid surface plate in the erection direction, and are bonded to the pair of peripheral surface plates in a state where the opening portion is closed by the lid surface plate;
An opening line (31, 35, 41, 51) for cutting off at least one of the lid surface plate and one of the joints (21A) to release the connection with the body box,
The plurality of peripheral plates tilt outward with the ruled line as a fulcrum when the lid is cut by the opening line and the lid plate closing the opening is made openable. Packaging box (5-7).   The unsealing line (31, 35) is formed along the unsealing direction that intersects the erection direction at the boundary between the lid surface plate, the one joint portion, or the lid surface plate and the one joint portion. 3. Packaging box (5) according to claim 2, characterized in that it is characterized in that   The packaging box (6) according to claim 2, wherein the unsealing line (41) is formed in a state extending from the one joining portion to the lid face plate. The pair of joints are bonded to the pair of peripheral plates via an adhesive (G) attached to a part thereof,
The packaging box (7) according to claim 2, wherein the opening line (51) is formed so as to surround the adhesive at the one joining portion. The body box is
A pair of side plates (11) as the peripheral surface plate provided in a state of being connected to both ends of the bottom plate in the installation direction;
A pair of end plates (12) as the peripheral plate provided in a state of being connected to both ends in the length direction perpendicular to the erection direction of the bottom plate;
Four inwardly-folded face plates (13) provided in a state of being connected to both ends in the erection direction of the end face plates via the ruled lines;
A pair of flaps (14) provided in a state of being connected to both outer ends in the longitudinal direction of the end face plates via the ruled lines,
In the state where the pair of side surface plates and the pair of end surface plates are in an upright posture with respect to the bottom surface plate, the four inner folded surface plates are folded inward along the ruled line with respect to the pair of end surface plates, and It is provided facing the inner surfaces of a pair of side plates, and the pair of flaps are provided in a state of being folded inwardly with the ruled line and extending toward the opening with respect to the pair of end surface plates. The packaging box according to any one of claims 1 to 5, characterized in that: The body box and the lid are each composed of corrugated cardboard in which liners (4B, 4C) are bonded to the front and back of the inner shin (4A),
The center shin of the lid is provided in a state extending in the erection direction,
The packaging box according to claim 6, wherein the inner shin of the body box is provided in a state extending in the length direction. The packaging box according to claim 6 or 7, wherein both ends in the length direction of the lid face plate are bonded to a part of the pair of flaps.

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