JP2015196543A - Packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent, as much as possible, a stored article from being damaged by impact applied in the top-and-bottom direction of the stored article, for example, when the stored article is an article such as a bottle, an ornament or the like which is easily cracked or broken.SOLUTION: A packing box includes: a box body 2 which has a plurality of wall flaps 4, and in at least one end side of which a box opening 8 used for putting in and taking out a stored article W is formed; a pair of lid flaps 10 which are each extended from a corresponding one of a pair of the wall flaps 4 facing each other with the box opening 8 interposed therebetween and can close the box opening 8 when bent toward the box opening 8; vibration-damping flaps 15 which are extended from the lid flaps 10 and reduce or eliminate the overhead space of the stored article W when bent in the direction of hanging down inside the box opening 8; and reinforcing flaps 16 which are extended from the vibration-damping flaps 15 and can each serve as a strut between each wall flap 4 and each vibration-damping flap 15 when bent toward the inner surface of the wall flap 4 arranged on the root side of each lid flap 10.

Description

  The present invention relates to a packaging box that can be suitably used for storing articles that are easily broken or broken, such as bottles and ornaments.

Packaging boxes made of cardboard are well known. In addition, it is also known to prevent breakage during transportation by accommodating articles that are easily broken or broken, such as bottles and ornaments, in this type of packaging box. In many cases, in order to prevent the stored article from being damaged, a contrivance is made to insert a spacer or a buffer material so that the stored article does not rattle in the box.
For example, Patent Document 1 discloses a packaging box in the case where a contained article is a bottle. In this packaging box, an “inverted bent piece” having a vertical small piece that hangs down at the center of the box and a horizontal small piece that is folded back in the direction parallel to the lid from the lower end of the vertical piece with respect to the flap that forms the box lid A structure in which a tunnel-shaped latching hole is formed in the inverted bent piece to hold down the base of the bottle is adopted.

Japanese Utility Model Publication No. 6-78224

In the packaging box disclosed in Patent Document 1, inverted bent pieces (vertical small pieces and horizontal small pieces) are formed of one cardboard. Therefore, when the opening periphery (the side of the tunnel-shaped straight line) of the latching hole that opens in the vertical small piece comes into contact with the base of the bottle from above, this contact part is also formed by a single cardboard. Become.
Because of this structure, when a strong impact is applied to the lid or bottom of the packaging box (in the direction of the top of the bottle), the opening periphery of the retaining hole presses the base of the bottle while maintaining a high surface pressure. As a result, accidents such as tearing in the vertical direction from both end portions of the retaining holes with respect to the vertical small piece (occurrence of cracks), and the vertical small piece being bent or crushed in a buckling manner frequently occur. In this case, it goes without saying that the impact absorption effect by the vertical small piece (inverted bent side) can no longer be expected, and the next time a strong impact is applied to the lid or bottom of the packaging box, the bottle will not be protected. It cannot be done (contained items will be damaged).

  The present invention has been made in view of the above circumstances, and in the case where an article that easily breaks or breaks, such as a bottle or a decorative article, is used as an accommodation article, etc., against an impact that acts in the vertical direction of the accommodation article. It is an object of the present invention to provide a packaging box that can prevent damage to contained articles as much as possible.

In order to achieve the above object, the present invention has taken the following measures.
That is, the packaging box according to the present invention is opposed to a box body having a plurality of wall flaps surrounding the contained article and having a box opening used for loading and unloading the contained article at least on one end side, with the box opening interposed therebetween. A pair of lid flaps that are respectively extended from the pair of wall flaps and bent toward the box mouth, and the box mouth can be closed, and extend from the lid flap and hang down in the box mouth. A damping flap that reduces or eliminates the overhead space of the contained article by bending in a direction, and a bending to extend toward the inner surface of the wall flap that extends from the damping flap and is disposed on the base side of the lid flap. Thus, a reinforcing flap that can be stretched between the wall flap and the damping flap is provided.

The plate material before the bending from the wall flap to the lid flap, the damping flap and the reinforcing flap is integrally formed by corrugated cardboard, and the flow of the corrugated cardboard in the direction in which these wall flap, lid flap, damping flap and reinforcing flap are aligned. It is good to form in the same direction.
The reinforcing flap can be formed to a length that reaches the valley fold portion of the wall flap and the lid flap that form the periphery of the ceiling in the box.

A guide flap arranged in a direction in which the inside of the box is vertically divided is extended in the vibration damping flap, and a guide port for fitting the accommodated article is formed in the guide flap, and the guide port is opened. Therefore, the reinforcing flap may be formed by a tongue piece in the mouth that needs to be removed.
The wall flap, which is the base of the lid flap, may be provided with a locking flap that locks the tip of the reinforcing flap.

  The damping flap is provided with a fitting piece projecting outward in the width direction at least on one side edge, and the fitting is performed when the damping flap is bent so as to hang down in the box mouth. It is even better if a fitting hole is formed in the wall flap arranged to face the piece or the inside flap overlapped inside the box of the wall flap so that the fitting piece can be fitted.

  The packaging box according to the present invention is capable of damaging the contained articles as much as possible against impacts acting in the vertical direction of the contained articles, such as bottles and decorative articles, which are easily broken or broken. Can be prevented.

It is the sectional side view which showed the principal part in 1st Embodiment of the packaging box which concerns on this invention. It is an expanded view of 1st Embodiment of the packaging box which concerns on this invention. (A) is the front view which showed the state before assembling 1st Embodiment of the packaging box based on this invention, (b)-(f) is the procedure (a lid flap, a damping flap, a reinforcement flap) which assembles a packaging box FIG. 3 is a side sectional view showing steps of bending a guide flap in a stepwise manner (the cross section is expressed in gray scale). It is the perspective view which showed the state before assembling 1st Embodiment of the packaging box which concerns on this invention. It is the perspective view which extracted and extracted the mode which bent an inside insertion flap and a positioning flap as an initial step which assembles 1st Embodiment of the packaging box which concerns on this invention (other flaps are abbreviate | omitting illustration). It is the perspective view which extracted and extracted the mode after bending the inside insertion flap and the positioning flap in 1st Embodiment of the packaging box which concerns on this invention (illustration of other flaps was omitted). It is the perspective view which extracted and showed the step corresponding to FIG.3 (c) (other flaps are abbreviate | omitting illustration). It is the perspective view which extracted and showed the step corresponding to FIG.3 (e) (other flaps are abbreviate | omitting illustration). It is the sectional side view which showed the principal part in 2nd Embodiment of the packaging box which concerns on this invention. It is the sectional side view which showed the principal part in 3rd Embodiment of the packaging box which concerns on this invention. It is an expanded view of 3rd Embodiment of the packaging box which concerns on this invention. It is an expanded view of 4th Embodiment of the packaging box which concerns on this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 8 show a first embodiment of a packaging box 1 according to the present invention. The packaging box 1 is formed of cardboard made of paper or resin. As shown in FIG. 4, the box body 2 which is the main body of the packaging box 1 is formed with a plurality of wall flaps 4 so that a stored article W (see FIG. 1) can be stored in the box. It is. FIG. 2 shows a development view of the packaging box 1. As is apparent from FIG. 2, the plurality of wall flaps 4 forming the box body 2 are arranged adjacent to each other with the folding line 5 for bending interposed therebetween. It is integrally formed in a state. The fold line 5 is a line formed by denting the inner surface side to be bent, a line having a perforated line, or the like.

  The shape and size of the box body 2 can be appropriately changed according to the shape and size of the stored article W, the number of stored items, and the like, and is not limited at all. In the first embodiment, the accommodation article W is a bottle such as a liquor bottle, and a dedicated box that accommodates a single liquor bottle. Therefore, the box body 2 is assumed to have a rectangular (square) square tube. Further, the wall flap 4 is formed in a rectangular shape, and the four wall flaps 4 having the same shape and the same size are connected so that the long sides thereof are adjacent to each other via the folding line 5.

Of the four wall flaps 4, the wall flap 4 (left end in FIG. 2) disposed on the side that becomes one side edge in the adjacent direction can be used as an adhesive glue margin, a staple fastening margin, or the like. A coupling piece 6 is formed. Therefore, by connecting the wall flaps 4 at both ends using the coupling piece 6, it is possible to assemble the rectangular tube (three-dimensional shape) surrounding the accommodation article W.
At both ends in the longitudinal direction of the box body 2 assembled into a rectangular tube, square (square) opening portions are formed. In the first embodiment, one of these (the upper side when used) is used as a box mouth 8 that can be used to put in and out the stored article W, and the top and bottom of the stored article W with respect to the box mouth 8. A configuration (a damping flap 15 and a reinforcing flap 16 described later) is employed to relax and absorb the impact acting in the direction and prevent the contained article W from being damaged.

  On the other hand, in the box body 2, the opening on the other side (the lower side when used) opposite to the box opening 8 is a bottom opening that is normally closed. In order to close the bottom opening, four bottom flaps 9 each extending in a trapezoidal shape with respect to the four side wall flaps 4 are provided, and these bottom flaps 9 are combined, and an important point is fixed or inserted with an adhesive or the like. Together, the box bottom is formed. However, although illustration is omitted, the bottom flap 9 may be formed in a square shape, or those having different sizes and shapes may be mixed. Further, the bottom flap 9 may be provided on the two wall flaps 4 facing each other, or the bottom flap 9 may be provided only on the three (one side) or one (one) wall flap 4. In some cases, the bottom flap 9 may be omitted, and the bottom opening may be closed with a bottom member formed separately from the box body 2 (made of cardboard, may be made of polystyrene foam, resin, or the like).

  In the box body 2, the lid flap 10 and the inside flap 11 are provided on the side where the box opening 8 is formed so as to be alternately arranged between the adjacent wall flaps 4. That is, a pair (a set of two) of the lid flap 10 and the insert flap 11 is provided so as to face each other with the box opening 8 in between. A fold line 5 is provided in each of the boundary portion where the lid flap 10 extends from the wall flap 4 and the boundary portion where the insert flap 11 extends from the wall flap 4.

The lid flap 10 is provided with a vibration damping flap 15 at its front end portion via a fold line 5, and a reinforcing flap 16 and a guide flap 17 are provided at the front end portion of this vibration damping flap 15 via the fold line 5. It has been. On the other hand, the centering flap 11 is provided with a positioning flap 18 via a fold line 5 at its tip.
First, the filling flap 11 and the positioning flap 18 will be described.

  As described above, the inside flap 11 is formed to extend from the wall flap 4 of the box body 2 via the fold line 5 and is folded back so as to be fitted into the box body 2 as shown in FIGS. 5 and 6. Thus, the positioning flap 18 functions as a “tie material” or a “spacer in the height direction” for holding the positioning flap 18 from the box opening 8 to an appropriate height (depth) position. Therefore, on the premise that the inside flap 11 has a width that can be fitted into the box body 2, the positioning flap 18 is held with respect to the amount of folding into the box body 2 (hanging height). It is set based on the height to be used. The holding height of the positioning flap 18 corresponds to the shape and size of the stored article W.

The inside flap 11 is disposed in the box body 2 so as to stick (overlap) to the inner surface of the wall flap 4. Therefore, as shown in FIG. 2, the inside flap 11 is provided with a valley fold line 20 parallel to the fold line 5 provided at the boundary with the wall flap 4, and a folding margin corresponding to the flap thickness is provided. It is recommended to reserve.
In addition, the insert flap 11 has a fitting hole 19 formed in the center in the width direction. The fitting hole 19 is elongated so that the insertion flap 11 extends from the wall flap 4, that is, the wall flap 4 that is the root of the insertion flap 11, and extends to the insertion flap 11 side across the valley fold line 20. It is open. The operation of the fitting hole 19 will be described in relation to a vibration damping flap 15 described later.

  As described above, the positioning flap 18 is formed to extend from the centering flap 11 via the fold line 5 and is disposed in a substantially horizontal direction in the box body 2 as shown in FIGS. It acts to prevent the head of the article W from shaking. Therefore, the positioning flap 18 is formed with a vibration damping opening 21 for allowing the head of the stored article W to pass therethrough so as not to cause large rattling. The opening shape and the opening diameter of the damping opening 21 are matched with the cross-sectional shape of the stored article W at the position where the stored article W is inserted. Therefore, the vibration control opening 21 does not necessarily need to be a “hole”, and may be provided with a fork-shaped notch that sandwiches the head of the stored article W. The positioning flap 18 is preferably provided with a claw hook recess 22 for easily causing the positioning flap 18 when the stored article W is taken out from the box body 2.

Next, the lid flap 10, the vibration damping flap 15, the reinforcing flap 16, and the guide flap 17 will be described.
The lid flap 10 is extended from the wall flap 4 of the box body 2 through the fold line 5 as described above, and closes the box mouth 8 by bending it toward the box mouth 8, There is an effect that can be used as it is as an outer lid. As shown in FIG. 1, for closing the box opening 8, a pair (two sheets) of lid flaps 10 facing each other with the box opening 8 interposed therebetween are jointly used. Therefore, one lid flap 10 is formed in a size that closes approximately half of the box opening 8.

  Note that a small locking flap 25 is formed in the middle of the folding line 5 at the boundary where the lid flap 10 extends from the wall flap 4, that is, at the wall flap 4 at the base of the lid flap 10. The locking flap 25 is connected to the wall flap 4 and is separated from the lid flap 10. Therefore, it can be bent to the inner surface side of the lid flap 10 (the side directed into the box when the box mouth 8 is closed). The operation of the locking flap 25 will be described in relation to the reinforcing flap 16 described later.

The damping flap 15 is extended from the lid flap 10 via the folding line 5 as described above, and the lid flap 10 enters the box body 2 from the lid flap 10 with the box mouth 8 closed. By bending in the hanging direction, the overhead space of the stored article W is reduced or eliminated.
Here, the procedure for bending the lid flap 10 and the vibration damping flap 15 is not important, and the relative state between the state after the lid flap 10 is bent and the state after the vibration damping flap 15 is bent is only described. This means that an angular relationship is important.

  Needless to say, the hanging height toward the inside of the box body 2 in the damping flap 15 is set in accordance with the height of the stored article W. In the first embodiment, the damping flap 15 is set as a guide to contact the head of the stored article W. However, this “contact” is not limited, and is separated from the head of the stored article W within a range in which the stored article W is allowed to move up and down (a range in which damage does not occur even if the stored article moves up and down). It is also possible to form it at such a drooping height (preferably about several mm).

  Since a pair (two) of lid flaps 10 are provided and the damping flaps 15 are provided for the respective lid flaps 10, there are also a pair (two) of damping flaps 15. In addition, since the pair of vibration damping flaps 15 are bent from the front end side of the lid flap 10 (ends that are brought into contact with each other), the vibration damping flaps 15 are provided to the head of the stored article W. It will contact | abut in the state which overlapped two sheets.

  More specifically, the shape of the vibration damping flap 15 extending from the lid flap 10 will be described in detail. It has an edge portion 15a and a front side edge portion 15b that further extends from the base side edge portion 15a with a width narrowed by one step. Therefore, there is a portion protruding between the both side edge portions 15a and 15b in a step shape perpendicular to the outside in the width direction. The portion protruding in the step shape is a fitting piece 15c.

  That is, in the state in which the inside flap 11 is placed in advance in the box opening 8 of the box body 2 so as to stick (overlap) to the inner surface of the wall flap 4, the damping flap 15 is then moved to the box opening 8. When bending in the direction to hang down, the inside flap 11 is disposed so as to face the fitting piece 15c of the damping flap 15, so that the fitting piece 15c is inserted into the fitting hole 19 formed in the inside flap 11. Fits in.

  Therefore, after the damping flap 15 is bent, the fitting piece 15b of the damping flap 15 is held in the fitting hole 19 to restrict the vibration, thereby preventing the damping flap 15 from shaking. Become. Therefore, the damping flap 15 is not bent and returned, and the bending work is facilitated. In addition, since the fitting hole 19 is formed across the valley fold line 20, the fitting piece 15b is fitted into the fitting hole 19 smoothly and reliably.

Further, since the vibration is prevented in the vibration damping flap 15 as described above, an action that prevents the vibration damping flap 15 from falling is obtained with respect to the action that the contained article W pushes up the vibration damping flap 15. Therefore, it is more preferable.
The reinforcing flap 16 is extended from the damping flap 15 through the fold line 5 as described above, and is disposed on the base side of the lid flap 10 from the damping flap 15 suspended in the box body 2. By bending so as to aim at the inner surface of the wall flap 4, the wall flap 4 and the damping flap 15 are stretched.

  As described above, a pair (two) of the damping flaps 15 are provided so that two sheets are overlapped. Therefore, a pair (two) of the reinforcing flaps 16 are also provided, and two of these pair of reinforcing flaps 16 are provided. The overlapping vibration suppression flaps 15 are centered on each other and the opposite wall flaps 4 are pressed against each other. In other words, since the action of pressing each other by the reinforcing flaps 16 is added to the double vibration damping flaps 15, the state in which the vibration damping flaps 15 hang down from the lid flap 10 is reinforced as a result. It becomes the effect that.

In this case as well, the bending procedure of the lid flap 10 and the vibration damping flap 15 and the reinforcing flap 16 is not important, but the state after the bending of the lid flap 10 and the vibration damping flap 15 and the reinforcement flap 16 This means that the relative angular relationship with the state after bending is important.
Thus, even if a strong impact is applied to the packaging box 1 in the top-and-bottom direction of the accommodation article W by providing the pair of reinforcing flaps 16, the damping flap 15 is easily damaged. The vibration damping flap 15 is always present at the head of the stored article W. Therefore, the impact absorbing effect on the accommodation article W by the vibration damping flap 15 will be maintained no matter how many times the strong impact applied to the accommodation article W is repeated, and there is a risk that the accommodation article W will be damaged accordingly. Suppressed or none at all.

  Further, in the vibration damping flap 15, the contact with the head of the stored article W corresponds to the outer corner portion where the reinforcement flap 16 is bent from the vibration damping flap 15, so that only the thickness of the vibration damping flap 15 is present. As a comparison with the case of contacting the head of the stored article W, the effect of expanding the contact area is obtained. That is, the contact surface pressure between the damping flap 15 and the contained article W can be suppressed to that extent, and the problem that the head of the contained article W is damaged by the damping flap 15 is also prevented.

  By the way, in the first embodiment, the target of the reinforcing flap 16 is inclined obliquely upward. The reinforcing flap 16 is formed to have a length that reaches around the ceiling in the box body 2, that is, reaches the valley fold portion (inner corner) between the lid flap 10 and the wall flap 4. Therefore, the reinforcing flap 16 comes to abut against the valley fold portion. Therefore, the movement of the reinforcing flap 16 is constrained so as not to move upward or downward. As a result, the bending angle between the reinforcing flap 16 and the damping flap 15 is always kept constant, the state where the damping flap 15 hangs down from the lid flap 10, and the damping flap 15 is reinforced by the reinforcing flap 16. The state to be performed is also reliably maintained.

Note that the lid flap 10, the damping flap 15, and the reinforcing flap 1 with respect to the wall flap 4.
In order to ensure that the reinforcing flap 16 abuts against the valley fold portion of the wall flap 4 and the lid flap 10 in the process of bending each of the reinforcing flaps 16, the tip end portion of the reinforcing flap 16 is obtained. Is locked to the locking flap 25 described above (see FIGS. 3C and 3D).

In addition, when the front end of the reinforcing flap 16 is locked to the locking flap 25, a protrusion 27 is formed at the front end of the reinforcing flap 16 so that the locked state is not easily released. Then, the locking flap 25 is formed so as to be fitted into the hole 26 opened (see also FIG. 8).
Further, the reinforcing flap 16 is required to act to stretch between the wall flap 4 and the damping flap 15. For this reason, it is recommended to reinforce the reinforcing flap 16 so as not to bend in the stretch direction. Therefore, it is preferable that the flow of corrugated cardboard used as a plate material be along the direction in which the reinforcing flap 16 is stretched. For this purpose, the direction in which the wall flap 4, the lid flap 10, the damping flap 15 and the reinforcing flap 16 are aligned is formed in the same direction as the flow of cardboard eyes.

  Further, in the first embodiment, as described above, the guide flap 17 is also extended from the vibration damping flap 15 in addition to the reinforcing flap 16. The guide flap 17 facilitates the work of bending the damping flap 15 and the reinforcing flap 16 while fitting them into the box mouth 8, and the flaps 15 and 16 are arranged at a predetermined angle in the box mouth 8. It has an action to induce Further, the guide flap 17 is arranged so as to divide the inside of the box of the box body 2 in the vertical direction. At this time, the contained article W is sandwiched, so that the roll of the contained article W is limited and the box body 2 is restricted. It also has the effect of further improving the stability inside.

The guide flap 17 having such an action requires a guide port 30 into which the accommodated article W is fitted. When the guide port 30 is formed, the guide flap 17 is made of the same plate material as the reinforcing flap 16. It is realized by forming from.
That is, the opening shape required for the guide port 30 needs to avoid contact interference with the accommodated article W in the process of folding the guide flap 17 into the box port 8, so that the guide flap 17 extends from the damping flap 15. The shape is inevitably long along the extending direction. Therefore, focusing on this point, the opening shape of the guide port 30 is adapted to the dimensional length required for the reinforcing flap 16. As a result, it is conceived that the reinforcing flap 16 is formed (also used) at a portion that needs to be removed in order to form the guide port 30. However, the opening shape of the guide port 30 is not necessarily a “hole”, and may be a fork-shaped notch that sandwiches the side surface of the stored article W.

  In short, when the plate material is extended from the damping flap 15 to form the guide flap 17, the plate material is connected only to the folding line 5 formed at the boundary with the damping flap 15. The notch corresponding to the opening shape of the guide port 30 is formed. Then, the reinforcing flap 16 is formed by bending the tongue piece generated inside the notch, and the guide flap 17 is formed by the frame piece surrounding the outer periphery of the tongue piece.

  The folding line 5 provided at the boundary between the vibration damping flap 15 and the reinforcing flap 16 is sufficient if it has at least a width corresponding to the reinforcing flap 16. Therefore, in FIG. 2, the folding line 5 is provided over the entire width of the damping flap 15, but the folding line 5 at the boundary between the damping flap 15 and the guide flap 17 can be omitted. It is.

Further, in order to further facilitate the operation of fitting the guide flap 17 into the box opening 8, and to make the guide flap 17 become familiar with the positioning flap 18, the guide flap 17 has a substantially intermediate position in the extending direction. It is recommended that the folding line 5 be provided. When the folding line 5 is provided, the following is preferable. That is, as shown in FIG. 1, after the guide flap 17 is suspended from the lid flap 10 in the vertical direction, it is substantially vertical (substantially at right angles) at a position where it hits the positioning flap 18 that traverses the box body 2 substantially horizontally. So that the bent tip overlaps the positioning flap 18. By doing in this way, the effect | action which reinforces the damping flap 15, the reinforcement flap 16, the positioning flap 18, etc. with the guide flap 17 (it raises rigidity) will be acquired, and the holding power of the accommodation article W will be raised. It leads to.

Next, the assembly procedure of the packaging box 1 according to the present invention will be described.
First, the box body 2 is formed into a rectangular tube shape from the unfolded plate material shown in FIG. 2, and the bottom opening is closed by the bottom flap 9. In this state, the accommodation article W is accommodated into the box body 2 from the box opening 8 (see FIGS. 3A, 3B and 4). You may put a spacer member in the bottom and outer periphery of the accommodation article W as needed. Then, as shown in FIGS. 5 and 6, the inside flap 11 and the positioning flap 18 are bent, and the damping port 21 of the positioning flap 18 is inserted into the head of the stored article W, and is stored in the box body 2. The head of the article W is prevented from shaking.

  Next, as shown in FIGS. 3C and 7, the reinforcing flap 16 is bent from the guide flap 17, and at the same time, the guide port 30 is formed in the guide flap 17. Further, the damping flap 15 is bent with respect to the lid flap 10. At this time, since the pair of lid flaps 10 are opposed to each other with the box opening 8 interposed therebetween, the lid flap 10 is originally used in order to easily perform the bending operation of the reinforcing flap 16 and the bending operation of the vibration damping flap 15. You may make it bend lightly in the reverse direction (direction away from the box mouth 8).

  Next, the lid flap 10 is bent toward the box opening 8 with respect to the wall flap 4. At this time, the front end portion of the reinforcing flap 16 is locked to the locking flap 25 of the wall flap 4, and the protrusion 27 of the reinforcing flap 16 is engaged with the hole 26 generated after the locking flap 25 is formed. . As a result, the relative bending angles of the lid flap 10, the damping flap 15, and the reinforcing flap 16 are kept constant in the subsequent operations.

  Next, as shown in FIGS. 3D and 3E and FIG. 8, the bending angle of the lid flap 10 is increased while the guide flap 17 is bent in a folded manner by the folding line 5 provided in the middle thereof. As shown in FIG. 3 (f), the box mouth 8 of the box body 2 is finally bent by the lid flap 10 until the angle is reached. In this process, the fitting piece 15c of the vibration damping flap 15 is fitted into the fitting hole 19 formed in the inside flap 11, and the vibration damping flap 15 after bending is prevented from shaking. Bending is eliminated and bending work can be easily performed. Further, the guide opening 30 of the guide flap 17 sandwiches the accommodated article W so that the bending proceeds stably and smoothly, and the guide flap 17 becomes well adapted to the positioning flap 18.

  Thus, the box mouth 8 of the box body 2 is closed in the state shown in FIG. 1, the overhead space is reduced or eliminated by the vibration control flap 15 in the stored article W, and the vibration control flap 15 is reinforced by the reinforcement flap 16. As established. Therefore, as described above, even if a strong impact is applied to the packaging box 1 in the top-and-bottom direction of the stored article W, the damping flap 15 is not easily damaged, and the stored article With respect to W, the damping flap 15 always exists at the head. In addition, since the damping flap 15 is prevented from shaking by fitting the fitting piece 15 b into the fitting hole 19 of the insert flap 11, the contained article W pushes up the damping flap 15. In contrast to the action, the action of preventing the vibration damping flap 15 from falling is also enhanced. Therefore, the impact absorbing effect on the accommodation article W by the vibration damping flap 15 will be maintained no matter how many times the strong impact applied to the accommodation article W is repeated, and there is a risk that the accommodation article W will be damaged accordingly. Suppressed or none at all.

FIG. 9 shows a second embodiment of the packaging box 1 according to the present invention. The packaging box 1 of the second embodiment is most different from the first embodiment in that the reinforcing flap 16 is arranged in a substantially horizontal direction in the box body 2 and abuts on the inner surface of the wall flap 4 substantially vertically. It is in the point to be.
In the second embodiment, in order to prevent the reinforcing flap 16 from being unintentionally bent and deformed in the flip-up direction, the wall flap 4 is provided with a flip-up prevention flap 32, and after being bent, The reinforcing flap 16 is engaged from above.

Other configurations, operational effects, and the like are substantially the same as those of the first embodiment, and the same reference numerals are given to those having the same functions, and detailed description thereof is omitted.
10 and 11 show a third embodiment of the packaging box 1 according to the present invention. The packaging box 1 of the third embodiment is most different from the first embodiment in that the reinforcing flap 16 is the wall flap 4.
After being in contact with the inner surface of the plate, it is further bent in the folding direction so as to come into contact with the damping flap 15. Therefore, as is clear from the development shown in FIG. 11, a fold line 5 is provided in the central portion of the reinforcing flap 16.

  In the third embodiment, the locking flap 25 is omitted. Further, the guide flap 17 is also omitted. Since the guide flap 17 is not required in this way, the reinforcing flap 16 may be formed in a square plate shape having the same width as the lid flap 10 or a little narrower than the lid flap 10. For this reason, the strength of the reinforcing flap 16 can be increased, and other advantages such as simplifying the assembling procedure by not forming the guide flap 17 can be obtained.

Other configurations, operational effects, and the like are substantially the same as those of the first embodiment, and the same reference numerals are given to those having the same functions, and detailed description thereof is omitted.
FIG. 12 shows a fourth embodiment of the packaging box 1 according to the present invention. The packaging box 1 of the fourth embodiment is a type that accommodates two accommodation articles W.
In the fourth embodiment, the fold line 5 is provided only at the boundary between the vibration damping flap 15 and the reinforcement flap 16, and this fold line 5 is not between the reinforcement flap 16 and the reinforcement flap 16. It is omitted. As a result, the damping flap 15 is distorted as if it has an uneven shape, but the damping flap 15 is only for reducing or eliminating the overhead space of the containing article W, and thus Only the portion corresponding to the head (the base of the reinforcing flap 16) is the vibration damping flap 15. Therefore, a portion between the reinforcement flaps 16 and the reinforcement flaps 16 becomes a part of the guide flap 17.

  However, since the folding line 5 does not exist between the damping flap 15 and the guide flap 17, when the damping flap 15 is bent vertically in the box opening 8, a part of the guide flap 17 (Approximately half the region closer to the root along the extending direction) is also in a vertical state together with the damping flap 15. At this time, the side edges of the guide flaps 17 on both sides in the width direction are arranged so as to face the inside flap 11. Therefore, in the fourth embodiment, the side edge portions 15a and the front side edge portions 15b of the guide flap 17 on both sides in the width direction are formed, and the fitting piece 15c is formed therebetween. It is supposed to give rise to.

  In short, in the fourth embodiment, it can be said that the portion of the guide flap 17 that is in the vertical state in the box opening 8 is also used as the damping flap 15, and therefore the fitting piece 15c is used as the damping flap. Based on the operational viewpoint of maintaining 15 vertical states, it should be said that the fitting piece 15c is provided with respect to the damping flap 15 also in the fourth embodiment. .

Other configurations, operational effects, and the like are substantially the same as those of the first embodiment, and the same reference numerals are given to those having the same functions, and detailed description thereof is omitted.
By the way, this invention is not limited to the said embodiment, It can change suitably according to embodiment.
For example, in the box body 2, both of the openings formed at both ends are set as a box mouth 8, and a lid flap 10, a vibration damping flap 15, a reinforcing flap 16, and a guide flap 17 are provided for all of them. (That is, the bottom flap 9 is not essential and can be omitted).

Providing the guide flap 17 with respect to the damping flap 15 is not limited, and can be omitted (for example, the third embodiment).
In the packaging box 1 according to the present invention, a resin sheet material (one having no corrugated cardboard structure), white cardboard, or the like can be adopted as the material plate in addition to corrugated cardboard.
In order to adjust the height of the stored article W, a spacer in the height direction may be placed in the box body 2. This type of spacer can be formed using corrugated cardboard, or can be formed using foamed polystyrene or air packing.

Since the inside flap 11 is not indispensable, the fitting hole 19 for fitting the fitting piece 15c of the damping flap 15 may be formed with respect to the wall flap 4 arranged to face the fitting piece 15c. . In some cases, the fitting hole 19 may be formed in a lining material or the like to be inserted instead of the insert flap 11.

DESCRIPTION OF SYMBOLS 1 Packaging box 2 Box main body 4 Wall flap 5 Folding line 6 Joining piece 8 Box opening 9 Bottom flap 10 Cover flap 11 Filling flap 15 Damping flap 15a Base side edge 15b Front side edge 15c Fitting piece 16 Reinforcement Flap 17 Guide flap 18 Positioning flap 19 Fitting hole 20 Valley fold line 21 Damping opening 22 Claw hook recess 25 Locking flap 26 Hole 27 Protrusion 30 Guide opening 32 Flip-up prevention flap W

Claims (6)

A box main body having a plurality of wall flaps surrounding the containing article and having a box opening formed at least on one end side for use in and out of the containing article;
A pair of lid flaps that are respectively extended from a pair of wall flaps facing each other across the box mouth and bent toward the box mouth, thereby closing the box mouth;
A damping flap that extends from the lid flap and bends in a direction that hangs down in the box mouth to reduce or eliminate the overhead space of the contained article;
A reinforcing flap that extends from the vibration damping flap and is bent so as to aim at the inner surface of the wall flap that is disposed on the base side of the lid flap, and can be stretched between the wall flap and the vibration damping flap. And a packaging box.   The plate material before the bending from the wall flap to the lid flap, the damping flap and the reinforcing flap is integrally formed by corrugated cardboard, and the flow of the corrugated cardboard in the direction in which these wall flap, lid flap, damping flap and reinforcing flap are aligned. The packaging box according to claim 1, wherein the packaging box is formed in the same direction.   The packaging box according to claim 1 or 2, wherein the reinforcing flap is formed to have a length that reaches a valley fold portion of the wall flap and the lid flap that form the periphery of the ceiling in the box. .   A guide flap arranged in a direction in which the inside of the box is vertically divided is extended in the vibration damping flap, and a guide port for fitting the accommodated article is formed in the guide flap, and the guide port is opened. The packaging box according to any one of claims 1 to 3, wherein the reinforcing flap is formed by a tongue piece in the mouth that needs to be removed for this purpose.   The wall flap used as the base of the said lid | cover flap is provided with the latching flap which latches the front-end | tip part of the said reinforcement flap, The any one of Claim 1 thru | or 4 characterized by the above-mentioned. Packaging box.   The damping flap is provided with a fitting piece projecting outward in the width direction at least on one side edge, and the fitting is performed when the damping flap is bent so as to hang down in the box mouth. The fitting hole which makes the said fitting piece fit is formed in the said wall flap of the arrangement | positioning which faces a piece, or the inside-filling flap piled up inside the box of this wall flap, The through-hole which enables fitting is formed. The packaging box according to claim 5.