JP2008114885A - Connecting mechanism of thin plate, and packaging box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new mechanism capable of forming at least three rooms by arranging at least two partitioning plates under a mutually approximately vertical condition in a packaging box assembled by folding a sheet of thin plate. <P>SOLUTION: The connecting mechanism 51 of the thin plate is equipped with a second partitioning plate 2a which is extended upward from a bottom plate 1a so as to be approximately orthogonal condition to a first partitioning plate 95 and is provided with a channel-like first cutout part 20 with a projection 21 for engaging, and an inner side plate 4 which is extended from a side plate 3a, and is provided with a channel-like second cutout part 30 and an engaging part 41 engaging the projection 21 for engaging. The packaging box 101 is equipped with this connecting mechanism 51. When the second cutout part 30 of the second partitioning plate 2a is inserted into the first cutout part 20 of the inner side plate 4 so that they are approximately orthogonal to each other, the inner side plate 4 rocks and the engaging part 41 engages the projection 21 for engaging, and the second partitioning plate 2a and the inner side plate 4 are connected to each other thereby. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a thin plate coupling mechanism and a packaging box provided with the coupling mechanism. More specifically, the present invention relates to a thin plate connecting mechanism for connecting and fixing a partition plate and an inner plate provided inside a packaging box for precision equipment such as a mobile phone so that they are substantially orthogonal to each other, and this The present invention relates to a packaging box provided with a coupling mechanism.

  In general, a packaging box for storing precision equipment such as a mobile phone and a video cassette has a buffer side wall and a bottom plate for protecting precision equipment and is partitioned into a plurality of rooms by partition plates. Such a type of packaging box is formed from one thin plate (hereinafter simply referred to as “thin plate”) that can be bent and exhibits a certain degree of elasticity, from the viewpoint of simplifying the manufacturing process.

  For example, a partition packaging box for storing a video cassette and its accessory parts is known (see Patent Document 1 below). According to the disclosure of Patent Document 1, the partition plate 14 is disposed along the longitudinal direction to form two chambers, and further, a buffer wall is provided in one of the two rooms, and the other chamber is provided in the other chamber. An interval holding plate 19 is provided (FIG. 3 of Patent Document 1). These buffer walls and the spacing plate 19 are arranged in a state perpendicular to the partition plate 15. Thus, the packaging box disclosed in Patent Document 1 has a room for storing a large video cassette A and charger D.

  However, in the packaging box disclosed in Patent Document 1, by design, the buffer wall and the spacing plate 19 can only be provided with recesses for storing small dry batteries C and batteries E, respectively (FIG. 3 of Patent Document 1). There are only two rooms for storing substantially large items.

Japanese Patent Laid-Open No. 08-244757

  An object of the present invention is to provide a novel mechanism capable of forming at least three rooms by arranging at least two partition plates in a substantially vertical state in a packaging box assembled by folding from one thin plate. Is to provide.

  As a result of intensive studies to solve the above problems, the present inventor started up a part of the bottom plate as an additional partition plate for forming three rooms, and started up this partition plate. By connecting the partition and the substantially vertical side plate extending portion (inner side plate), it succeeded in the construction of a new connecting mechanism, thereby finding that the above problem can be solved, and the present invention is completed based on this finding. It came to.

  As a method of connecting two parts using a thin plate, generally, a method of connecting an insertion port and an insertion piece, such as a method of connecting a lid and a main body, is known [Japanese Patent Laid-Open No. 2006-2006]. However, all of these known methods merely connect portions parallel to each other.

  That is, the present invention is a thin plate coupling mechanism in a packaging box, which is formed of a single thin plate that can be bent and exhibits elasticity, and includes a bottom plate, a side plate, and a first partition plate that partitions the inside of the packaging box. A second partition plate extending upward from the first partition plate so as to be substantially perpendicular to the first partition plate and provided with a groove-shaped first cutout portion having an engaging projection, and extending from the side plate. A groove-shaped second cutout portion and an inner plate provided with an engagement portion that engages with the engagement protrusion, and the second cutout portion of the second partition plate is the second cutout portion of the inner plate. When they are inserted into one notch portion so as to be substantially orthogonal to each other, the inner plate swings and the engaging portion engages with the engaging projection, whereby the second partition plate and the inner portion are engaged. Thin plate connecting mechanism characterized in that the plates are connected to each other And to provide a packaging box which is characterized in that it comprises a connecting mechanism for this sheet.

  Also, according to the present invention, preferably, the inner plate is arranged by folding the thin plate toward the inner side of the packaging box at a fold between the side plate and the inner plate. The inner plate oscillates due to the elastic recovery force due to the bending.

  Further, according to the present invention, it is preferable that the engaging protrusion is formed in a hook shape, and the engaging portion is formed as a groove-shaped notch.

  Further, according to the present invention, the inner plate is disposed by bending the thin plate toward at least two locations toward the inner side of the packaging box so as to be separated from the side plate, and between the side plate and the inner plate. It is preferable that a buffer space for protecting the contents is formed.

  Furthermore, according to the present invention, it is preferable that the engaging portion between the engaging portion and the engaging protrusion is present in the buffer space.

  Furthermore, according to this invention, it is suitable that the said partition plate is a partition plate of the double structure arrange | positioned so that surfaces may mutually overlap.

  Furthermore, according to the present invention, it is preferable that the cutout depth of the first cutout portion and the cutout depth of the second cutout portion are substantially equal.

  Furthermore, according to the present invention, it is preferable that a hole for inserting a finger into the buffer space is provided in the bottom plate.

  According to the present invention, when the groove-shaped second notch provided in the inner plate is inserted into the groove-shaped first notch provided in the second partition plate, the inner plate The inner plate swings through the elastic force (elastic recovery force after bending the thin plate) and the engaging portion provided on the inner plate engages with the engaging protrusion provided on the second partition plate. Can be made. Thereby, the 2nd partition plate arrange | positioned at a substantially right angle with respect to a 1st partition plate, and an inner side board can be connected and fixed, and the state which the 2nd partition plate stood can be formed. Accordingly, at least two partition plates (first partition plate, second partition plate) can be arranged in a substantially vertical state to form a technical effect that at least three rooms can be formed. It was.

  As described above, the present invention is a thin plate in a packaging box 101 having a first partition plate 95 that is formed from one thin plate 100 that can be bent and exhibits elasticity, and that has a bottom plate 1, a side plate 3, and a packaging box 101. And a groove-like first cutout portion 20 having an engaging projection 21 is provided so as to extend upward from the bottom plate 1a and substantially perpendicular to the first partition plate 95. A second partition plate 2a; and a second partition plate 2a provided with an inner plate 4 extending from the side plate 3a and provided with a groove-shaped second cutout portion 30 and an engagement portion 41 engaged with the engagement protrusion 21. When the second cutout portion 30 of the plate 2a is inserted into the first cutout portion 20 of the inner plate 4 so as to be substantially orthogonal to each other, the inner plate 4 swings and the engaging portion 41 becomes the engagement protrusion. 21 so that the second partition plate 2a and the inner plate 4 are mutually connected. A thin plate connection mechanism 51, and a packaging box 101 including the thin plate connection mechanism 51 (see the attached FIGS. 1 to 3 for numbers). provide.

  Here, “a thin plate that can be bent and exhibits elasticity” means, for example, a thin plate made of paper or resin (for example, plastic), such as a paper cardboard, plastic cardboard, or chip ball. Says cardboard.

  Further, “the inner plate 4 swings and the engaging portion 41 engages with the engaging protrusion 21” includes at least two aspects.

  According to the first aspect, the engagement protrusion 21 is provided at the upper end portion of the groove-shaped first cutout portion 20 on the side close to the side plate 3a (see FIG. 3). Further, the engaging portion 41 (refer to FIG. 4 in particular) is a surface (4b) close to the side plate 3a of the inner plate 4 formed by being bent in a state where the engaging portion 41 is engaged with the engaging protrusion 21. Is provided. In this case, the inner plate 4 swings by the elastic recovery force in the bent portion 9 of the bent inner plate 4 shown in FIG. 3, and as a result, can be engaged (see FIGS. 5 and 6). ).

According to the second aspect, the engagement protrusion 21 is provided at the upper end portion of the groove-shaped first cutout portion 20 on the side far from the side plate 3a. Moreover, the engaging part 41 is provided in the surface (4a) far from the side plate 3a (refer FIG. 3). In this case, it is rocked by the elastic recovery force at the fold line α1 between the side plate 3a and the inner plate 4 of the folded thin plate 100, and as a result, can be engaged. This is the opposite direction to the embodiment.
The force due to elastic recovery at the fold line α2 also corresponds to the elastic recovery force.

  The present invention will now be described in more detail by describing the best mode for carrying out the invention with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing an embodiment of a packaging box according to the present invention provided with a thin plate coupling mechanism according to the present invention. FIG. 2 is a development view of the packaging box 101 shown in FIG.

  The packaging box 101 of the present embodiment is a cardboard packaging box related to an inner box for housing a mobile phone body and its accessories, and usually wraps the packaging box 101 containing a mobile phone body and the like. Used in a single outer box (not shown). As shown in FIG. 2, the thin plate 100 is a paper cardboard having a concave and convex core provided in the hollow portion, and the flow direction in which the concave and convex portions are repeated is an E direction.

  As shown in FIGS. 1 and 2, the packaging box 101 of the present embodiment is formed by bending a single thin plate 100 at a plurality of locations, and includes a bottom plate 1, a side plate 3, a first partition plate 95, and a second partition. A plate 2 and an inner plate 4 are provided. And between the inner side board 4 and the side board 3a, the buffer space D for protecting a stored thing is formed. In addition, leg projections 31 projecting downward are provided at both ends of the side plate 3.

  Here, the space in the packaging box 101 is partitioned into three rooms by the first partition plate 95 and the second partition plate 2. The first partition plate 95 and the second partition plate 2 are partitions arranged substantially perpendicular to each other, and the second partition plate 2 and the inner plate 4 forming the buffer space D are substantially perpendicular to each other. They are connected so that they intersect. The inner plate 4 and the first partition plate 95 are disposed substantially parallel to each other. In addition, the connection mechanism 51 of the 2nd partition plate 2 and the inner side board 4 is demonstrated later with reference to FIG.

  Among these three rooms, for example, the mobile phone charger and the cord thereof are accommodated in the room A, the mobile phone main body is accommodated in the room B in which the inner bottom plate 91 is disposed, and the mobile phone is accommodated in the room C. A battery is housed. Moreover, in the packaging box 101 of this embodiment, not only the buffer space D formed between the inner plate 4 and the side plate 3a and adjacent to the side plate 3a but also the portion adjacent to the other side plates 3b to 3c is contained. A buffer space is formed to protect the water. With this buffering space, it is possible to appropriately protect the stored item from an impact force from the outside.

  Here, the inner bottom plate 91 is a portion that is continuous with the side plate 3 c, and is disposed so as to be overlapped with the bottom plate 1 by bending the thin plate 100 toward the inside of the packaging box 101. The first partition plate 95 is a portion that is continuous with the inner bottom plate 91, and is arranged by bending the thin plate 100 so as to rise upward from the inner bottom plate 91. With such a configuration, the first partition plate 95 can be formed as a part of one thin plate 100.

  Further, as shown in FIG. 2, the packaging box 101 of the present embodiment is formed by bending a single thin plate 100 such as the first partition plate 95, the second partition plate 2, the inner plate 4, the side plate 3, and the bottom plate 1. Is formed. Therefore, there is only one fixing portion by bonding when the packaging box 101 is assembled. In the fixing step by bonding or the like, the adhesive is applied to the adhesive application portion 71, and then the adhesive application portion 71 is applied to the bonding portion 72. It is only necessary to overlap and press. Therefore, when assembling the packaging box 101, the fixing process by bonding or the like can be greatly reduced, and the manufacturing process of the packaging box 101 can be simplified.

  In addition, as described above, the first partition plate 95, the second partition plate 2, and the inner plate 4 are formed by bending one thin plate 100, so that the partition that partitions the internal space of the packaging box 101, In addition to the function as a buffer wall for protecting the contents from external force, it also has a function as a structural member of the packaging box 101, which contributes to improving the strength of the packaging box 101.

  Next, the buffer space D shown in FIG. 1 will be described. As shown in FIGS. 1 and 2, the buffer space D is bent at two locations (curved portions α1, α2) toward the inner side of the packaging box 101 so that the inner plate 4 is separated from the side plate 3a. This is a space formed between the inner plate 4 and the side plate 3a.

  Thus, the buffer space D is formed by bending the thin plate 100 that forms the packaging box 101. This makes it possible to easily form a buffering space for protecting the contents without complicatedly combining a plurality of thin plates or using a bulky buffering member such as foamed polystyrene.

  Next, FIG. 3 is a perspective view for explaining in detail the thin plate coupling mechanism 51 shown in FIG. FIG. 4 is a perspective view showing the fitting portion 41 provided on the inner plate 4 of FIG. FIG. 5 is a side view showing a state in the middle of connecting the second partition plate 2 and the inner plate 4 of FIG. 3. FIG. 6 is a side view showing a state in which the second partition plate 2 and the inner plate 4 of FIG. 3 are connected. Here, FIGS. 3 to 6 are views for explaining a thin plate connection mechanism 51 which is an embodiment (the first embodiment described above) of the thin plate connection mechanism according to the present invention shown in FIG. .

  As shown in FIGS. 3 and 4, the second partition plate 2 according to the thin plate coupling mechanism 51 of the present embodiment has a groove-shaped first cutout portion 20 having an engagement protrusion 21 formed in a hook shape. Is provided. Further, the inner plate 4 is provided with an engaging portion 41 that engages with the groove-shaped second cutout portion 30 and the engaging protrusion 21. Here, the engaging part 41 is formed as a groove-shaped notch. Further, the inner plate 4 is formed by being bent at the bending portion 9 and has a double structure.

  As described above, the engagement protrusion 21 is formed in a hook shape, and the engagement portion 41 of the inner plate 4 is formed as a groove-shaped cutout portion, so that the second partition plate 2 and the inner plate 4 Are effectively connected and fixed.

  In a state where the inner side plate 4 is bent so that the second partition plate 2 and the inner side plate 4 intersect each other at a substantially right angle, the second notch portion 30 of the inner side plate 4 has the second notch of the second partition plate 2. 1 is inserted into the notch 20.

  As shown in FIGS. 5 and 6, the inner plate 4 is inserted into the first cutout portion 20 of the second partition plate 2 in a form in which the inner plate 4 is bent at the bent portion 9 and the elastic deformation is suppressed. And when the position of the engaging part 41 provided in the inner side board 4a shown in FIG. 4 and the protrusion 21 for engaging provided in the 2nd partition plate 2 mutually overlaps, the bent inner side board 4a is a bending part. 9, the engaging part 41 engages with the engaging protrusion 21 due to the elastic force generated by the elastic recovery of 9. In this way, the second partition plate 2 and the inner plate 4 are connected and fixed to each other so as not to be easily removed without using means such as an adhesive.

  By using the thin plate connection mechanism 51, a partition made up of the first partition plate 95 and the second partition plate 2 that are arranged substantially perpendicular to each other is formed in the internal space of the packaging box 101 formed by the thin plate 100. Thus, three partitions can be formed inside the packaging box 101 by these partitions.

  Here, as shown in FIG. 6, the engaging portion of the engaging portion 41 and the engaging protrusion 21 is present inside the buffer space D. For this reason, it can avoid that the part which the engaging part 41 and the protrusion 21 for engagement engage is intentionally or accidentally becoming a non-engagement state.

  Moreover, the notch depth of the 1st notch part 20 and the 2nd notch part 30 is substantially equal mutually. Thereby, compared with the case where notch depth is one deep and the other is shallow, the intensity | strength of the connection part of the 2nd partition plate 2 and the inner side board 4 which were mutually connected and fixed becomes high as a whole.

  Note that an adjustment unit 8 that is continuous with the inner plate 4 may be provided. The adjusting unit 8 is effective in the manufacturing process of the thin plate 100 according to the present embodiment. One thin plate 100 is produced by punching, for example. Here, when the processed thin plate 100 before assembly shown in FIG. 2 is transported by means of, for example, a belt conveyor and then boxed, the long side of the thin plate 100 is parallel along the transport path. If the thin plate 100 provided with the adjusting portion 8 is formed so that it can be conveyed in a stable state, operations such as conveyance and boxing become easy. That is, by providing the adjusting unit 8, the long sides of the thin plate 100 can be transported in a parallel state along the transport path, and there is an advantage that a plurality of thin plates 100 can be easily aligned even in a boxing operation.

  Here, the reason why the notch 81 (FIG. 4) is provided in the adjustment portion 8 is to prevent interference with the end portion of the second partition plate 2 as shown in FIGS. 5 and 6.

  Next, FIGS. 7-9 is a figure which shows the state in the middle of the assembly of the packaging box 101 of FIG.

  When the packaging box 101 is assembled, the thin plate 100, which is a processed flat plate, is first coated with the adhesive on the adhesive application section 71, and the adhesive application section 71 is superimposed on the bonding section 72, The folds (three places) between the side plates (3a to 3d) are bent at a substantially right angle to form a rectangular cylinder. Next, as shown in FIG. 7, the bottom plates (1a to 1c) connected to the side plates (3b to 3d) are appropriately folded inward and engaged with each other to form the bottom plate of the packaging box 101.

  The second partition plate 2a connected to the bottom plate 1a is arranged by folding the thin plate 100 at a substantially right angle at a fold 10a between the bottom plate 1a and the second partition plate 2a so as to partition the inside of the packaging box 101. Since the second partition plate 2a and the bottom plate 1a are integrally formed as a part of one thin plate 100, the second partition plate 2a has not only a function as a partition plate for partitioning the internal space of the packaging box 101, It also has a function as a structural member of the packaging box 101.

  Similarly to the second partition plate 2a, the second partition plate 2b also bends the thin plate 100 at a substantially right angle at the fold line 10b between the bottom plate 1b and the second partition plate 2b so as to partition the inside of the packaging box 101. The 2nd partition plate 2a and the 2nd partition plate 2b are two partition plates arrange | positioned by mutually overlapping surfaces (refer FIG. 8). Thereby, the 2nd partition plate 2 (it consists of 2a and 2b) becomes a double structure, and intensity | strength improves rather than the thin plate of a single structure.

  Here, as shown in FIG. 7, the bottom plate 1 (1a, 1b) of the packaging box 101 of the present embodiment is provided with a hole 61 for inserting a finger into the buffer space D shown in FIG. . The hole 61 is mainly used for releasing the engagement state described above. For example, when the packaging box 101 is disassembled and discarded after use of the packaging box 101 of the present invention, the bottom plate 1 is pushed down, and then a finger is inserted into the hole 61 and lifted in a non-engaging state. The combined state can be released. It is also possible to simply check whether or not the engagement state described above is normal by inserting a finger into the hole 61.

  Next, as shown in FIG. 8, the packaging box 101 in the middle of assembly is turned upside down so that the bottom plate 1 is at the bottom. And the part which continues to the side plates 3b and 3d is bend | folded inside the packaging box 101, and the buffer space along the side plates 3b and 3d is formed.

  Next, as shown in FIG. 9, the thin plate 100 is formed at the fold line 11 between the side plate 3a and the inner plate 4 so that the second partition plate 2 (2a, 2b) and the inner plate 4 intersect each other at substantially right angles. Is bent toward the inside of the packaging box 101, and the second cutout portion 30 of the inner plate 4 is inserted into the first cutout portion 20 of the second partition plate 2. In this way, the second partition plate 2 and the inner plate 4 that intersect each other at substantially right angles are connected and fixed, and the second partition plate 2 that partitions the internal space of the packaging box 101 is disposed.

  As described above, the inner bottom plate 91 connected to the side plate 3 c is disposed in the packaging box 101 so that the thin plate 100 is folded inside the packaging box 101 and overlapped with the bottom plate 1. The partition plate 95 is disposed by bending the thin plate 100 so as to rise upward from the inner bottom plate 91 (see FIG. 1).

  On the other hand, as shown in FIG. 9, leg projections 31 projecting downward are provided at both ends of the side plate 3 (3 a, 3 b, 3 c, 3 d). Thereby, the lower space of the packaging box 101 can be used as a buffer space for protecting the stored items, and the lower space can also be used as a storage space for one separated stored item. it can. Here, examples of the accommodation to be accommodated in the lower space include an instruction manual for a mobile phone having a relatively large area and a thin shape, a compact disc, and the like.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. .

  For example, FIG. 10 is an expanded view for showing a modification of the packaging box according to the present invention. Here, this modification is demonstrated compared with the thin plate 100 which concerns on one Embodiment of the packaging box based on this invention shown in FIG.

  An inner bottom plate support portion 93 ′ is provided on the second partition plate 2 ′ of the thin plate 102 forming the packaging box according to this modification shown in FIG. 10. Further, the partition plate support portion 96 ′ provided in the first partition plate 95 ′ shown in FIG. 10 is larger than the corresponding partition plate support portion 96 shown in FIG. 2. Further, the first partition plate 95 'is provided with a third notch 92'. Here, the third cutout portion 92 'is inserted into and engaged with the inner bottom plate support portion 93' of the second partition plate 2 '.

  In a state where the packaging box is assembled, the inner bottom plate 91 ′ of the packaging box according to this modification is supported by the inner bottom plate support portion 93 ′ and is higher than the corresponding inner bottom plate 91 shown in FIGS. 1 and 2. Be placed. That is, the inner bottom plate 91 ′ of the packaging box according to this modified example is arranged so as to be raised from the inner bottom plate 91 of the packaging box 101, and the bottom of the packaging box is appropriately raised according to the contents by this configuration. Can do.

It is a perspective view which shows one Embodiment of the packaging box which concerns on this invention provided with the connection mechanism of the thin plate which concerns on this invention. It is an expanded view of the packaging box shown in FIG. It is a perspective view explaining in detail the connection mechanism of the thin plate shown in FIG. It is a perspective view which shows the fitting part provided in the inner side board of FIG. It is a side view which shows the state in the middle of the 2nd partition plate and inner side board of FIG. 3 being connected. FIG. 4 is a side view showing a state in which the second partition plate and the inner plate of FIG. 3 are connected. It is a figure which shows the state in the middle of the assembly of the packaging box of FIG. It is a figure which shows the state in the middle of the assembly of the packaging box of FIG. It is a figure which shows the state in the middle of the assembly of the packaging box of FIG. It is an expanded view for showing the modification of the packaging box which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bottom plate 2 2nd partition plate 3 Side plate 4 Inner plate 20 1st notch part 21 Engagement protrusion 30 2nd notch part 41 Engagement part 51 Thin plate connection mechanism 95 1st partition plate 100 Thin plate 101 Packaging box D Buffer space

Claims (9)

A thin plate connection mechanism in a packaging box having a first partition plate that is formed from a single thin plate that can be bent and exhibits elasticity, and that has a first partition plate that partitions the inside of the packaging box,
A second partition plate provided with a groove-shaped first cutout portion extending from the bottom plate so as to be substantially perpendicular to the first partition plate and having an engagement protrusion;
An inner plate extending from the side plate and provided with a groove-shaped second cutout portion and an engagement portion that engages with the engagement protrusion,
When the second notch portion of the second partition plate is inserted into the first notch portion of the inner plate so that they are substantially orthogonal to each other, the inner plate swings and the engaging portion becomes A thin plate connecting mechanism, wherein the thin plate connecting mechanism is engaged with an engaging protrusion, whereby the second partition plate and the inner plate are connected to each other. The inner plate is arranged by folding the thin plate toward the inner side of the packaging box at a crease between the side plate and the inner plate,
The thin plate coupling mechanism according to claim 1, wherein the inner plate swings due to an elastic recovery force caused by the bending of the thin plate.   3. The thin plate coupling mechanism according to claim 1, wherein the engagement protrusion is formed in a hook shape, and the engagement portion is formed as a groove-shaped cutout portion. 4. The inner plate is arranged by bending the thin plate toward the inner side of the packaging box so as to be separated from the side plate,
The thin plate coupling mechanism according to claim 1, wherein a buffer space for protecting an object is formed between the side plate and the inner plate.   The thin plate coupling mechanism according to claim 4, wherein a portion where the engagement portion and the engagement protrusion are engaged exists in the buffer space.   The thin plate coupling mechanism according to any one of claims 1 to 5, wherein the second partition plate is a double-structured partition plate arranged such that the surfaces are overlapped with each other. .   The notch depth of the said 1st notch part and the notch depth of the said 2nd notch part are substantially equal, The connection mechanism of the thin plate of any one of Claims 1-6 characterized by the above-mentioned. .   A packaging box comprising the thin plate coupling mechanism according to any one of claims 1 to 7. A thin plate coupling mechanism according to claim 4 or 5,
A packaging box, wherein a hole for inserting a finger into the buffer space is provided in the bottom plate.

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