JPH1191765A - Collapsible packing box furnished with cushioning structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a collapsible packing box integrally furnished with a cushioning structure capable of being folded up easily promptly from a sheet of a corrugated cardboard and packed without completely using conventional packing material. SOLUTION: A packing box provided partially with at least a hollow wall structure is folded up from a sheet of a corrugated cardboard in each surface of a rectangular body, and the corrugated body 101 has a formation where bottom pieces 2A-2D and lid pieces 3A-3D are contiguously formed to each lower side and upper side of side wall surface 1A-1D forming the peripheral walls of the box, in which folding lines (and cut lines) and made at the bottom pieces 2A-2D for shaping a bottom cushioning structure furnished with partial bottom surfaces 7, 15 and interior walls 10, 16 by being folded into reversed C-shape facing the inside of the box, and also has a constitution where folding lines and cut lines are made at the lid pieces 3A, 3C for forming lid-side cushioning structures provided with partial interior lid surfaces 21 and interior wall surfaces 22 by being folded into reversed C-shaped facing the inside of the box.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for easily and quickly folding up a shock-sensitive article such as a home video deck or a facsimile from a single piece of cardboard by using a conventional styrofoam packing or the like. The present invention relates to a foldable packing box having a buffer structure, which can be packed without using any packing material.

[0002]

2. Description of the Related Art Styrofoam packing, which has been widely used when packing electrical products and the like using a cardboard box, is used to dispose of packing in order to waste valuable oil resources. Had also created various complications. On the other hand, instead of styrofoam packing, block packing made of paper, in which a large number of cardboard pieces are bonded in a desired shape, has been used.

[0003]

However, this paper packing must be made separately from the cardboard box, and it takes too much time and effort to make it. . Therefore, an object of the present invention is to provide a foldable packing box having a buffer structure that can be easily and quickly folded from only one piece of cardboard and can be packed without using any packing material such as conventional styrofoam packing. To be.

[0004]

In order to achieve the above object, a foldable packing box provided with a cushioning structure according to the present invention comprises a rectangular box-shaped cardboard 101 (102) and a rectangular box. The surface is such that a packing box 201 (202) provided at least partially with a hollow double-walled structure is folded up, and the corrugated cardboard 101 (102) has side wall surfaces 1A to 1C which constitute a peripheral wall of the box. On each lower side and upper side of 1D, bottom piece 2A ~
It has a form in which 2D and lid pieces 3A to 3D are connected,
The bottom pieces 2A to 2DC are folded in a U-shape toward the inside of the box to form bottom-side buffer structures V1, V2 having partial inner bottom surfaces 7, 15 and inner wall surfaces 10, 16 (and folds). Cuts) are formed in the lid pieces 3A and 3C so as to be bent in a U-shape toward the inside of the box to form a lid-side buffer structure W having a partial inner lid surface 21 and an inner wall surface 22; It is characterized by having a form in which a cut is provided. And
The inner wall surface 22 may be provided with a notch that cuts and raises a spacer piece 24 that comes into contact with the opposing side wall surface.
Further, it is preferable to provide a cut in the inner bottom surface 15 to form a hanging piece 17 that receives and supports this surface in a cut-and-raised manner. The corrugated cardboard 102 makes the lid 3D the same size as the top surface of the packing box 202, and the lid 3B, which is not required as a lid, is provided with folds and cuts that bend the component storage shelf S. Good. The lid piece 3B has a trapezoidal upper surface 41 on the upper edge of the side wall surface 1B.
And a hanging surface 42, a shelf surface 43, and support pieces 44 that are bent into a reinforcing structure similar to an angle material and support the shelf surface 43 are sequentially connected via folds. Preferably, both ends of 44 are received by the upper surface 32 of the lid-side buffer structure W. Further, an insert 30 for closing the lid is connected to the upper edge of each of the lids 3B and 3D, and the insert 30 is inserted into the side surface 29 of the lid side buffer structure W. The slit 31 for use may be provided at a predetermined angle from the vertical direction.
Alternatively, the reinforcing pieces 12 may be connected to the side ends of the bottom pieces 2A and 2C, and fixing portions 12a and 13 for fixing the reinforcing pieces 12 to the respective bottom pieces in a superposed state may be provided. In addition, a stepped recessed portion a for a handhold or a buffer function adjustment is provided on the inner wall surface 10 of the bottom buffer structure V1, or the bottom buffer structure V1 is provided.
Holes 63 for adjusting the buffering performance may be provided on the side wall surfaces 61 and 62 of the V1 and V2. Then, a component storage case 203 that is folded up into a box shape from one piece of corrugated cardboard 103 and stored in the space between the hollow double-structured walls may be attached.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment in which the present invention is applied to a packing box of a home video deck will be described below with reference to FIGS. Only one shown in FIGS. 1 and 2
The packing box 201 of this embodiment, which can be easily and quickly folded up from the single cardboards 101 into the form shown in FIGS.
Has a hollow double-walled structure at least partially on its peripheral wall, bottom surface and lid surface. And it can be stored and transported in a flat form that is crushed flat.

The corrugated cardboard 101 is provided with a number of folds and cuts to enable the packing box 201 to be folded up. 1 and 2
As shown in the figure, the cardboard 101 is provided with bottom pieces 2A to 2D connected to the lower sides of the four side walls 1A to 1D constituting the peripheral wall of the packing box 201 via folds A, and each upper side has It has a form in which the lid pieces 3A to 3D are continuously provided via the fold line B. 1E is a glue margin piece that connects the side wall surfaces 1A to 1D in a rectangular tube shape.

[0007] In the middle of the side wall surface 1A, there is provided a cut 4 for forming an oval hole, and the upper edge is left uncut so that the portion surrounded by the cut 4 can be folded inside the box. I have to.

FIG. 8 shows a bottom cushioning structure V1 on the bottom pieces 2A and 2C, which plays a role in place of the conventional styrofoam packing for buffering and supporting the side end of the packaged article (home video deck). To make it bend like
Creases and breaks are provided respectively. That is, there are provided parallel folds C1 and C2 for bending the bottom piece 2A (and 2C) in a U-shape toward the inside of the box, and fold-up folds D for raising the overlapped wall 5 to be overlapped on the side wall surface 1A (1C). ing.

[0009] Further, as shown in FIG.
1. In order to form the stepped portion T in a concave shape in which the side ends of the packaged article are placed in a fitted state, a predetermined length is set near both ends of the parallel fold C2 by straddling both sides of the fold. Are provided, and three parallel folds E1 to E3 are provided between the two parallel cuts.

On the inner bottom surface 7 serving as a step surface of the step portion T, a U-shaped cut-and-raise cut 9 for vertically hanging a support piece 8 for supporting the inner bottom surface 7 is provided on both legs thereof. The end is provided so as to be in contact with the parallel fold E2, and the fold between the two legs is absent. Further, as shown in FIG. 8, in order to form a step-shaped recessed part a in the middle part of the inner wall surface 10 which is the side face of the stepped part T, the center part of the parallel fold E3 is provided on both sides of the fold. And a predetermined length of parallel cuts 11, 11 are provided at predetermined intervals, and four parallel folds F1 to F4 are formed by bridging between the two cuts.
Is provided.

A strip-shaped reinforcing piece 12 for reinforcing the four corners on the bottom side of the packing box 201 is continuously provided on both side ends of the bottom pieces 2A and 2C via a fold line G. As shown in FIG. 5, as shown in FIG. 5, an engaging portion 12 a is provided at one end of the reinforcing piece 12 as a fixing portion for fixing a state in which the reinforcing piece 12 is folded over the bottom pieces 2 </ b> A and 2 </ b> C. A U-shaped cut 13 is provided in the overlapping wall 5. The overlapping wall 5 has an oval handle hole 14 at a position corresponding to the cut 4 of the side wall surface 1A.
Is also provided.

The bottom pieces 2B and 2D are bent in a U-shape toward the inside of the box to form a partial inner bottom surface 1 as shown in FIG.
5, parallel folds H1 and H2 for forming the bottom buffer structure V2 provided with the ridges 5 and a rising fold I for raising the inner wall surface 16 are provided. This bottom buffer structure V2 is also
In cooperation with No. 1, it plays a role to replace the conventional packing made of polystyrene. In order to prevent the bottom pieces 2A and 2C and the bottom pieces 2B and 2D from interfering with each other in the process of folding the packing box 201, both side edges b of the bottom pieces 2B and 2D are recessed into a mountain shape. .

Further, on the inner bottom surface 15, a U-shaped cut-and-raised cut 18 for forming a hanging piece 17 for cushioning support in a cut-and-raised shape is formed with both leg ends in contact with the rising fold I. At two places, and the crease I is missing between the legs.
A semicircular notch 19 is provided on one inner wall surface 16.

On the other hand, the lid pieces 3A and 3C have lid-side buffering structures W which serve as substitutes for the conventional styrofoam packing for protecting both side ends on the upper surface side of the packaged article.
Are formed as shown in FIG. 8 and FIG. 9, respectively. That is, as shown in FIG. 1 and FIG. 2, the base end (lower end in FIG. 1) of the lid piece 3A (3C)
Parallel folds J1 and J2 for forming the inner lid surface 21 (see FIG. 8) are provided by bending the box toward the inside of the box and forming an inner lid surface 21 (see FIG. 8). Folds K and L for forming the inner wall surface 22 and the horizontal ribs 23 are provided.

On the inner wall surface 22, a spacer piece 24 is formed so as to keep a predetermined space in parallel with the opposed side wall surface 1A (1C). The cut 25 is provided in two places. Furthermore, inner wall 2
A cut 26 is provided near one of the side ends of the two so as to extend between the folds K and L. A cut-and-raised cut 2 that bends the contact piece 27 adjacent to the cut 26 on the lid piece 3C.
8 are provided.

A cover side surface 2 which is a side portion of the cover side buffer structure W.
9 (see FIG. 9), folds M are formed on the upper edges of the lid pieces 3B and 3D.
The insertion slits 31 are provided for inserting the insertion pieces 30, 30 that are provided continuously through the slits 31. This insertion slit 31
Is provided not at a vertical angle but at a predetermined angle, and its upper end extends to the upper surface 32 of the lid-side buffer structure W. Further, two holes 33 are provided on the side surface 29 of the lid. The handle hole 33 is also useful for adjusting the buffer characteristics.

Next, a procedure for assembling the packing box 201 having the buffer structure from the cardboard 101 will be described. Packing box 2
At the time of shipping, 01 is folded flat in the form shown in FIG. 3 in order to improve transportation and storage and the efficiency of assembly work at the packing site.

Each of the reinforcing pieces 12 connected to both side ends of the bottom pieces 2A and 2C is preliminarily provided so that the packing work can be easily started.
It is preferable that the locking portion 12a, which is folded over the bottom pieces 2A and 2C, is inserted into the U-shaped cut 13 so that the overlapping state is fixed. In addition, if the bottom pieces 2A to 2D are bent inward along the fold line A in advance and folded on the side wall surfaces 1A to 1D, the workability at the packing site is further improved. Each fold of the corrugated cardboard 101 has a habit in a predetermined direction.

In order to fold up the packing box 201 from the state shown in FIG. 3, the side walls 1A to 1D are developed into a rectangular tube shape as shown in FIG. Along the side walls 1B and 1D, and the bottom piece 2
The operation of folding A and 2C into the form of the bottom buffer structure V1 will be described.

That is, the bottom piece 2A is connected to the parallel folds C1 and C2.
Along the inside of the box into a U-shape,
Is raised along the fold line D for rising, and the side wall surface 1
A (1C) is polymerized. At this time, the parallel folding E1 to E
3, and the stepped portion T and the recessed portion a are also formed to be bent in their own right, depending on how to form the folding habits of F3 and F1 to F4. A support piece 8 provided on an inner bottom surface 7 as a step surface of the step portion T
Are left without being bent and protrude downward to receive and support the inner bottom surface 7 in a cushioned manner.

Next, the bottom pieces 2B, 2D standing up along the side wall surfaces 1B, 1D are bent outward in a U-shape along the parallel folds H1, H2 so that the inner bottom surface 15 is formed. At the same time, the inner wall surface 16 is bent and erected along the rising fold line I. As a result, as shown in FIG. 8, the bottom pieces 2B and 2D are also folded into the form of the bottom buffer structure V2.

At this time, the hanging piece 17 projects below the inner bottom surface 15 without being bent, and receives and supports the inner bottom surface 15 in a buffered manner. The both ends of the raised inner wall surface 16 are engaged with the slits 6 and 6 on both sides of the stepped portion T,
It is kept upright.

By the above-mentioned folding operation, as shown in FIG. 8, on the bottom surface of the packing box 201 in the middle of folding, the packaged articles are placed on both the left and right sides and the front and rear sides in a buffered state. , A pair of bottom buffer structures V1 and V2 are formed. In this state, partial inner wall surfaces 10, 10, 16, 16 are formed at predetermined intervals, respectively, inside the side wall surfaces 1A to 1D.

Therefore, at this stage, the packed articles are stored in the packing box 201 which is being folded. For this purpose, the left and right side ends of the packaged article may be placed on the inner bottom surfaces 7, 15 in a state where the left and right side end portions are fitted into the step portions T of the left and right bottom buffer structures V1, V2.

Next, the process proceeds to folding up the lid-side buffer structure W for buffering and supporting the upper surface side of the packaged article. To do this, as shown in FIGS. 8 and 9, the lid piece 3A (and 3C) is
1, along with J2, bent inside the box into a U-shape,
The folds K and L may be bent at right angles inward and outward of the box according to the respective folding habits. At this time, the spacer piece 24 formed on the inner wall surface 22 is left without being bent and protrudes laterally toward the opposing side wall surface 1A (1C) to maintain the gap between the inner and outer double walls at a predetermined width. It plays the role of helping.

In the pair of left and right lid side buffer structures W thus folded, the respective inner lid surfaces 21 are in a state of covering the upper surfaces of both side ends of the packaged article. Also, the inner wall surface 22
The contact piece 27 provided near the side end of the packaged article comes into contact with the side face of the packaged article by itself and protects this side face.

Therefore, finally, as shown in FIG. 10, while closing the sound-opening lid pieces 3B and 3D, the two insertion pieces 30,
30 are inserted into the insertion slits 31 respectively provided in the both-side buffer structure W, and the closed lid pieces are fixed. By the way, as shown in FIG. 9, the insertion slit 31 is provided not in the vertical direction but in the oblique direction at the position of the lid side surface 29.

For this reason, even if a strong force is applied to open the lid pieces 3B and 3D due to any bounce during the handling of the packing box 201, the insertion piece 30 remains as shown in FIG. In addition, since it is hooked on the inclined insertion slit 31 at an acute angle, there is no possibility that it will come off easily. Therefore, when strict packing is not required, it is not necessary to attach a packing tape to a place where the two lid pieces 3B and 3D abut.

Of course, the other insertion piece 3 is placed on the slope of one insertion piece 30 obliquely inserted into the insertion slit 31.
Since 0 is in a riding state, the impact force exerted on the cover surface of the packing box 201 is received by the slope and dispersed in the horizontal direction, so that the effect of reducing the impact force is produced.

The above-described series of folding operation of the packing box is different from the above-described extremely complicated explanation because the folding folds in the predetermined directions are previously attached to the respective folds.
It can be completed very easily, quickly and reliably.

When taking out the packaged article from the packing box, if a finger is put on the handle hole 33 provided in the lid side surface 29 of the lid side buffer structure W, the lid side buffer structure W portion is easily pulled up in a double-opened manner. Can be Also, when taking out the packaged goods,
By inserting a hand into each of the recessed portions a provided on the left and right bottom side buffer structures V1, they can be easily taken out.

Further, by appropriately changing the size, shape, or number of the handle holes 33 and the support pieces 8, the buffer characteristics of the bottom buffer structure V1 and the lid buffer structure W can be changed in various packings. It allows you to fine-tune to the best fit for each of your items.

Next, a second embodiment in which the present invention is applied to a home facsimile packaging box will be described with reference to FIGS. The packaging box 202 of this embodiment, whose internal structure is shown in FIGS.
Can be easily and quickly folded simply by bending the single cardboard 102 along the fold line.

The difference from the packing box 201 of the first embodiment is that the lid 3D is made the same size as the top surface of the packing box 202 so that the unnecessary lid 3B can be packed. 20 and 21 for placing the accessories of the article in a buffered state.

That is, the lid 3B has a trapezoidal upper surface 41, a hanging surface 42, a shelf surface 43, and a support piece for supporting the shelf surface 43 by being bent into an angle material-like reinforcing structure. 44 and the folds N and O and the parallel fold P1 (P2)
Is provided in order to connect them successively via a. Note that the bent shape of the support piece 44 may be a gutter shape, a rectangular tube shape, or the like.

On the other hand, as shown in FIG. 21, both ends of a support piece 44 in the form of an angle material are fitted on the upper surface 32 of each lid-side buffer structure W obtained by bending the lid pieces 3A and 3B. Fitting holes 45 are provided for receiving the mated state. In addition, cover piece 3
A and 3C are provided with slits 46 so as to straddle both sides of the parallel fold J1 so that both ends of the hanging surface 42 are locked. The hanging lower surface 42 is also provided with a notch c for locking.

Further, as shown in FIG. 21, in order to form a stepped portion U of a predetermined width in a recessed shape on the hanging surface 42, parallel cuts 47 are provided so as to straddle both sides of the fold N. At the same time, three parallel folds are provided between both cuts. The shelf surface 43 has lid-side buffer structures W provided on both front and rear sides of the box.
The width is reduced so as not to interfere with each of the above. or,
The shelf surface 43 is provided with a U-shaped cut 49 for forming a notch 48 for avoiding a buffer between the protrusion of the packaged article and the protrusion.

The lid piece 3B is provided with a U-shaped cut 52 for forming the sub lid closing piece 51 in a cut-and-raised shape.
1 is provided with a parallel fold to bend into an L shape. on the other hand,
The main lid closing piece 55 projecting from the upper edge of the lid piece 3D is provided with a slit 56 into which the sub lid closing piece 51 is inserted and a finger hole 57. Further, the cover pieces 3A and 3C are provided with hollow holes 58 and 59 for avoiding a protruding portion of the packaged article. 60
Are cutouts for putting the component housing case 203 in and out.

As shown in FIGS. 12 and 13, the side wall surfaces 61 and 62 supporting the inner bottom surfaces 7 and 15 constituting the bottom side buffer structures V1 and V2 are provided for adjusting the buffer function. A hollow 63 having a useful rhombus or pentagon is provided. It should be noted that each of the bottom pieces 2A, 2C and each of the lid pieces 3A, 3C correspond to the different shapes of the packaged articles of the first and second embodiments.
The way of forming the cuts and folds is slightly different from that of the first embodiment. However, the basic idea of how to set them is common.

The second difference between the packing box 202 of the second embodiment and the packing box 201 of the first embodiment is that one of the four side walls having the hollow double-walled structure has one of the four side walls. The space between the walls is made relatively wide, and the space between the walls is folded up from one piece of corrugated cardboard 103 shown in FIG. 22. 203
Is to be fitted.

The corrugated cardboard 103 has a bent piece 72 provided with parallel folds Q1 and Q2 at both ends on the long side of the rectangular bottom surface 71 occupying the middle part thereof so as to be bent in a U-shaped cross section. , Each of which is provided continuously via a fold line R. A fold 74 and a cut 75 are formed on the bottom surface 71 at both ends on the short side, and a U-shaped cut 77 is formed at an intermediate portion to form a horizontal partition 76 in a cut and raised shape. A fold 78 is provided.

Further, when the component accommodating case 203 is folded up from the corrugated cardboard 103, fitting cuts 79 are provided at respective positions that interfere with each other. Reference numeral 80 denotes a finger hole for facilitating the assembly and deployment of the component housing case 203.
Each crease has a folding habit in a predetermined direction in advance.

The accessories of the packaged articles are accommodated in the case 203 while the component accommodating case 203 is being folded up from the cardboard 103. That is, first, as shown in FIG. 23, the side walls 73, 73 and the middle partition 76 are erected on the bottom surface 71, and accessories are mounted on a plurality of predetermined positions on the bottom surface 71, respectively. Then, as shown in FIG.
If the components 2 and 72 are respectively folded in a U-shape and covered on the bottom surface 71, the component storage case 20 having vertical and horizontal intermediate partitions can be formed.
3 is folded up as shown in FIG.

In each of the above embodiments, the packaged articles are specified as a home video deck and a facsimile. Of course, other various packaged articles may have different shapes and strength characteristics. To determine the best fit, determine the dimensional ratio of the details, the shape and arrangement of the hollow for adjusting the cushioning performance, the presence or absence of component storage shelves, and the shape and arrangement of the hollow to avoid the protruding part of the packaged goods as appropriate. do it.

[0045]

As apparent from the above description, the foldable packing box provided with the buffer structure according to the present invention has the following practically excellent effects. (A) By simply folding one cardboard, each of the bottom surface, the peripheral wall, and the lid surface has a hollow double-wall structure at least partially, and can easily and quickly be folded into a packing box having excellent cushioning performance. Can be raised. (B) Therefore, a packing material for packing made of styrene foam or the like, which has been required in the past, becomes unnecessary. (C) Therefore, the efficiency of the packing work is remarkably improved,
Expenses for purchasing and storing packing materials can be saved. (D) Since a spacer piece or a hanging piece that comes into contact with the opposed outer wall surface is protrudingly provided on the inner wall surface of the hollow double wall constituting the bottom and the peripheral wall of the box, any strong external force causes There is no danger of the double wall structure being collapsed. (E) The buffer performance of the packing box can be easily and finely adjusted for each part simply by appropriately changing the shape and arrangement of the hanging pieces and the spacer pieces. (F) One lid piece that does not need to function as a lid piece
The accessories can be quickly packed in a buffered state by being bent into the form of the component storage shelf. (G) When one set of opposing cover pieces is bent into the form of a lid-side buffer structure, and another set of opposing cover pieces functions as a double-leafed cover piece, the edge of each cover piece is If the inserted cover closing inserts are inserted into the oblique insertion slits provided on the side wall surface of the cover-side buffer structure, the inserts will not easily come out even under a strong external force. (H) Only by connecting a reinforcing piece to be superimposed on the side end of the bottom piece, the corner at the bottom side of the packing box can be sufficiently reinforced. (I) By providing a recessed portion on the inner wall surface of the bottom side buffer structure, it becomes easy to take out the packaged article. (J) The buffer performance of this structural portion can be easily adjusted by providing a hollow in the side wall surface or the like of the bottom buffer structure. (K) A separately prepared component storage case that can be folded up from one piece of cardboard can be stored in a coherent manner by utilizing the space between the hollow double walls.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention and is a developed plan view of cardboard as a material.

FIG. 2 is a perspective view of the same cardboard.

FIG. 3 is a perspective view showing a state where the packing box is folded flat.

FIG. 4 is a perspective view of the same as above, in a state where it is developed into a rectangular tube shape from the state of FIG.

FIG. 5 is a perspective view showing a state where the packing box has begun to be folded.

FIG. 6 is a perspective view showing a state where the bottom surface is closed.

FIG. 7 is a perspective view showing a state where left and right bottom buffer structures are folded up.

FIG. 8 is a perspective view showing a state in which the front and rear bottom buffer structures are also folded up, and the lid buffer structure is also bent;

FIG. 9 is a perspective view showing a state where each of the bottom and lid side buffer structures is folded up.

FIG. 10 is a perspective view showing a state where the lid of the packing box is half closed.

FIG. 11 is an external perspective view of the packing box after packing.

FIG. 12 shows a second embodiment of the present invention, and is an exploded plan view of cardboard as a raw material.

FIG. 13 is a perspective view of the same cardboard.

FIG. 14 is a perspective view showing a state where the packing box is folded flat.

FIG. 15 is a perspective view showing a state in which the state of FIG.

FIG. 16 is a perspective view showing a state where the packing box has begun to be folded.

FIG. 17 is a perspective view showing a state where the bottom surface is closed.

FIG. 18 is a perspective view showing a state where the left and right bottom buffer structures are folded up.

FIG. 19 is a perspective view showing a state where the lid-side buffer structure is also bent.

FIG. 20 is a perspective view showing a state where the folding of the bottom-side and lid-side buffer structures is completed and the component storage shelves are also bent.

FIG. 21 shows a part storage shelf package and a part storage case,
It is a perspective view of the state set to the predetermined position in each box.

FIG. 22 is a perspective view of a cardboard as a material, showing a configuration of a component storage case.

FIG. 23 is a perspective view showing a state where the component housing case has begun to be folded.

FIG. 24 is a perspective view of the same, in a half-folded state.

FIG. 25 is a rear perspective view of the folded component housing case.

FIG. 26 is an external perspective view of the packing box of the second embodiment.

[Explanation of symbols]

101 to 103 Corrugated cardboard 201, 202 Packing box 203 Parts storage case 1A to 1D Side wall surface 2A to 2D Bottom piece 3A to 3D Lid piece 4 Cut 5 Overlapping wall 6 Parallel cut 7,15 Inner bottom face 8 Supporting piece 9,11 Cutting cut 10 , 16, 22 Inner wall surface 12 Reinforcement piece 12a Engagement part 13 U-shaped cut 14, 33 Handle hole 17 Hanging piece 18, 25, 28 Cut-and-raise cut 19 Notch 21 Inner lid surface 23 Horizontal rib 24 Spacer piece 26 Cut 27 hit Piece 29 lid side surface 30 insertion piece 31 insertion slit 32 lid upper surface 33 handle hole 41 upper surface 42 hanging lower surface 43 shelf surface 44 support piece 45 fitting hole 46,56 slit 47 parallel cut 48 cut and raised piece 49,52, 76 U-shaped cuts 51 Secondary lid closing pieces 53, 54, 58, 59, 63 Holes 55 Main lid closing pieces 57, 80 Finger holes 61, 2 Side wall surface 71 Bottom surface 72 Bending piece 73 End surface side wall 74,78 Fold 75,77 cut 76 Horizontal partition 79 Fitting cut A, B, G, K ~ O, R Fold C1, C2, H1, H2, J1, J2 , P1, P2, Q
1, Q2 Parallel folds E1 to E3, F1 to F4 Parallel folds D, I Start-up folds V1, V2 Bottom side buffer structure W Lid side buffer structure T, U Stepped portion a Recessed portion b Side edge c Notch

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Claims (11)

[Claims] 1. A substantially rectangular corrugated cardboard 101 (10).
From 2), each side of the rectangular parallelepiped is configured such that the packing box 201 (202) having at least partially a hollow double-walled structure is folded up, and the corrugated cardboard 101 (102) is a peripheral wall of the box. The bottom pieces 2A to 2D and the lid pieces 3A to 3D are continuously provided on the lower side and the upper side of the side wall surfaces 1A to 1D, respectively, and the bottom pieces 2A to 2DC have a U-shape facing the inside of the box. Folds (and cuts) are formed to form bottom-side buffer structures V1, V2 having partial inner bottom surfaces 7, 15 and inner wall surfaces 10, 16 by folding the cover pieces 3A, 3C. A fold having a buffer structure, characterized in that folds and cuts are provided to form a lid-side buffer structure W having a partial inner lid surface 21 and an inner wall surface 22 by bending inwardly into a U-shape. Tatami packing box. 2. The cushioning structure according to claim 1, wherein a cut is formed in the inner wall surface 22 so as to form a spacer piece 24 in contact with the opposing side wall surface. Foldable packing box. 3. A fold provided with a cushioning structure according to claim 1, wherein a cut is formed in said inner bottom surface 15 so as to form a hanging piece 17 for receiving and supporting said surface. Type packing box. 4. The cardboard 102 is provided on the lid 3D.
The same size as the top surface of the packing box 202 is provided, and the cover piece 3B, which is not required as a cover piece, is provided with folds and cuts for forming the component storage shelf S in a bent manner. A foldable packing box provided with the buffer structure according to any one of 1 to 3. 5. The lid piece 3B is bent at the upper edge of the side wall surface 1B into a trapezoidal upper surface 41, a hanging surface 42, a shelf surface 43, and a reinforcing structure similar to an angle material or the like. Face 43
And support pieces 44 for supporting the support pieces 44 are sequentially connected via fold lines. Both ends of the support pieces 44 are connected to the upper surface 3 of the lid side buffer structure W.
The foldable packing box provided with the buffer structure according to any one of claims 1 to 4, wherein the foldable packing box is received at (2). 6. An insertion piece 30 for closing a lid is connected to each upper edge of the lid pieces 3B and 3D, and the insertion piece 30 is provided on a side surface 29 of the lid constituting the lid side buffer structure W. 6. The foldable packing box provided with the buffer structure according to claim 1, wherein the insertion slit 31 for inserting the zipper is provided at a predetermined angle from a vertical direction. 7. A reinforcing piece 1 is provided at a side end of each of the bottom pieces 2A and 2C.
7. The cushioning structure according to claim 1, further comprising fixing portions (12a, 13) for connecting the reinforcing pieces (12) and the reinforcing pieces (12) to the respective bottom pieces in a superposed state. Foldable packing box. 8. On the inner wall surface 10 of the bottom buffer structure V1,
8. A foldable packing box provided with a cushioning structure according to claim 1, wherein a stepped recessed portion a for a handle or for adjusting a buffering function is provided. 9. The side wall surface 6 of the bottom buffer structure V1, V2.
9. A foldable packing box having a buffer structure according to claim 1, wherein a hollow 63 for adjusting the buffering performance is provided in each of the first and second holes. 10. A part accommodating case 203, which is accommodated in a space between the hollow double-structured walls and is folded up into a box shape from one piece of corrugated cardboard 103, is attached. A foldable packing box provided with the buffer structure according to any one of the above. 11. The corrugated cardboard 103 has bent pieces 72 provided with parallel folds at both ends of a rectangular bottom surface 71 occupying a middle portion thereof so as to be bent into a U-shaped gutter-like cross section through the folds. The bottom surface 71 is provided with folds and cuts on the bottom surface 71 so as to form end face side walls 73 (and horizontal partitions 76) in a cut-and-raised manner. A folding box provided with a buffer structure according to claim 10, wherein a joint cut is provided.