JP5487952B2 - Packaging material connection structure - Google Patents

Description

  The present invention relates to a connecting structure for packing materials used for packing electrical equipment and the like.

  Patent Document 1 below discloses a packaging box for packing electrical equipment and the like. This packaging box is formed from a corrugated cardboard plate, and includes a quadrangular bottom plate, four side plates rising from four sides of the bottom plate, and a top plate that is foldably connected to the upper end side of one side plate. The upper side of the other side plate facing the one side plate and the tip side of the top plate are detachably connected by the insertion connecting part.

Fig.10 (a) is an expanded view which shows an example of the conventional insertion connection part, FIG.10 (b) is the perspective view. The insertion connecting portion connects two plate members 113A and 113B, and one plate member 113A protrudes from the end side and is bent through a fold line 119, and A first slit 120 formed along a fold line 119 is provided at the base of the first insertion piece 118. The other plate material 113B has a folding surface 123 that is bent at its end side via a folding line 122, a second slit 124 that is formed along the folding line 122 and into which the first insertion piece 118 is inserted, and this second plate material 113B. A second insertion piece 127 that protrudes from the end side of the other plate material 113 </ b> B in the middle of the two slits 124 and is inserted into the first slit 122 is provided.
The second insertion piece 127 includes a base-side main body portion 129 and a distal-end-side insertion portion 131. The boundary between the plate member 113B and the main body portion 129 and the boundary between the main body portion 129 and the insertion portion 131 are Bending lines 128 and 130 are formed, respectively.

  Then, as shown in FIG. 10B, the first insertion piece 118 is inserted into the second slit 124 in a state of being bent about 90 °, and the insertion portion 131 of the second insertion piece 127 is bent about 90 °. By inserting into the first slit 120, the two plate materials 113A and 113B can be firmly connected.

JP 2009-96505 A

In the conventional insertion connecting portion, as shown in FIG. 10B, a concave portion 150 is formed adjacent to the first slit 120 on the end side of one plate material 113A. The insertion part 131 can be extracted from the first slit 120 by inserting and pressing it against the insertion part 131 and pulling up the main body part 129 in the direction of arrow a.
However, since the packing material for packing a large electric device or the like is formed of a thick cardboard material and has high rigidity, it is difficult to pull up the main body portion 129 simply by pressing the finger inserted into the recess 150 against the insertion portion 131. The first slit It is very difficult to extract the insertion part 131 from 120.

  This invention is made | formed in view of such a situation, and it aims at providing the connection structure of the packaging material which can unpack easily even with small force.

The present invention is a connecting structure of packing materials for connecting ends of two packing surfaces adjacent to each other,
A first insertion piece protruding from an end of one packing surface and bendable with respect to the packing surface;
A first slit formed along an edge of the one packing surface;
A folded surface that is foldable to the edge of the other packing surface;
A second slit formed along an edge of the other packing surface and into which the first insertion piece is inserted;
A second insertion piece protruding from the end of the other packing surface and inserted into the first slit;
The second insertion piece is composed of a main body portion whose base side is foldably connected to the other packing surface, and an insertion portion that is foldably connected to the distal end side of the main body portion and is inserted into the first slit,
A pair of openings into which a finger can be inserted to grip both sides in the width direction of the main body is formed across the distal end side of the main body and the other packing surface,
Furthermore, the opening has a wider opening width toward the front side in the direction in which the second insertion piece protrudes , and is open on the end side of the other packing surface.

  According to this configuration, the second inserted into the first slit is inserted by inserting a finger into each of the pair of openings, picking up both sides in the width direction of the main body of the second insertion piece, and pulling up the main body. The insertion piece can be extracted. Therefore, even if the packaging material is formed of a thick material and has high rigidity, the second insertion piece can be easily extracted to unpack the packaging. In addition, since this invention becomes easy to pick a main-body part, so that a packing material is thick, usefulness can be improved more.

The opening, since it is arranged on the distal end side of the main body portion, it is possible to grip the main body portion at a position closer to the difference and addition unit may extract the spigot from the first slit by a smaller force .

Since the opening is open on the end side of the other packing surface, it is easy to insert a finger into the opening , and it is easy to pick the tip of the main body, and it is easier to insert from the first slit. Can be extracted.

The wider the opening, the easier it is to insert a finger and the body part of the second insertion piece to be easily picked. On the other hand, the side part in the width direction of the body part is greatly exposed and caught by the surroundings. The possibility is also high. Therefore, as in the present invention, by widening the opening width of the opening toward the front side in the direction in which the second insertion piece protrudes, the ease of inserting a finger is ensured to a certain extent, and the more distal end side of the main body portion is placed. While being easy to pick, it is possible to prevent as much as possible surrounding objects from being caught on the side in the width direction of the main body.
The insertion portion is formed to have the same width as the distal end side of the main body portion between the pair of openings, and the width of the base portion side of the main body portion is equal to the distal end side of the main body portion and the insertion portion. it may be wide rather than the width.

  According to the connecting structure for packing materials of the present invention, the packing can be easily opened with a small force.

It is a perspective view which shows the aspect which packs a to-be-packaged object with the packing material which concerns on the 1st Embodiment of this invention. It is an expanded view which shows the insertion connection part of a packing material. It is a perspective view which shows the insertion connection part before a connection. It is a perspective view which shows the insertion connection part after a connection. It is an expanded view which shows the insertion connection part in one board | plate material of the packing material which concerns on the 2nd Embodiment of this invention. It is an expanded view which shows the insertion connection part in one board | plate material of the packing material which concerns on the 3rd Embodiment of this invention. It is an expanded view which shows the insertion connection part in one board | plate material of the packing material which concerns on the 4th Embodiment of this invention. It is an expanded view which shows the insertion connection part of the packing material which concerns on the 5th Embodiment of this invention. It is an expanded view which shows the insertion connection part of the packing material which concerns on the 6th Embodiment of this invention. (A) is an expanded view which shows the insertion connection part of the packing material which concerns on a prior art example, (b) is a perspective view of the insertion connection part.

FIG. 1 is a perspective view showing an aspect in which an article to be packed is packed with the packing material according to the first embodiment of the present invention.
The packaging material 10 of the present embodiment is composed of two divided bodies 11, and surrounds the outer periphery of the article 12 to be packed with the two divided bodies 11, and by connecting the ends of the adjacent divided bodies 11 to each other, The packaged object 12 is packed. In the present embodiment, the packing material 10 is formed in a square tube shape having four packing surfaces 13 in order to pack the rectangular column-shaped article 12 such as an outdoor unit of an air conditioner.

  Each divided body 11 is provided with two packing surfaces 13 by bending a single plate 15 made of cardboard at the center, and an insertion connecting portion 16 is provided on one end side of each packing surface 13. In the example shown in FIG. 1, the insertion connecting portions 16 are provided at two upper and lower portions of each divided body 11.

FIG. 2 is a development view showing the insertion connecting portion of the packing material.
A first insertion piece 18 protruding from the end side 13A1 is provided on one of the packing surfaces 13A and 13B adjacent to each other. The base portion of the first insertion piece 18 is connected to the packing surface 13A so as to be foldable via a first fold line 19, and is bent inward at an angle of about 90 ° with respect to the packing surface 13A. A first slit 20 is formed at the base of the first insertion piece 18 along the first fold line 19. The width (length) W <b> 2 of the first slit 20 is smaller than the width W <b> 1 of the first insertion piece 18, and the first slit 20 is disposed at the center in the width direction of the first insertion piece 18. The widths W1 and W2 of the first insertion piece 18 and the first slit 20 can be, for example, W1 = 400 to 500 mm and W2 = 50 to 90 mm.

  A bending surface 23 is provided on the end side 13B1 of the other packing surface 13B via a second bending line 22. A second slit 24 is formed at the base of the bending surface 23 along the second bending line 22, and the first insertion piece 18 is inserted into the second slit 24. The width (length) W <b> 3 of the second slit 24 is formed to be slightly smaller than the width W <b> 1 of the first insertion piece 18 and is forcibly fitted to the second slit 24. Therefore, the 1st insertion piece 18 is inserted in the 2nd slit 24 in the state to which resistance was provided.

  On the other packing surface 13B, a second insertion piece 27 is formed at the center in the width direction of the second slit 24. The second insertion piece 27 includes a main body portion 29 and an insertion portion 31, and the base side of the main body portion 29 is connected to the packing surface 13 </ b> B so as to be foldable via a third fold line 28 parallel to the second fold line 22. Yes. The insertion portion 31 is connected to the distal end side of the main body portion 29 via a fourth fold line 30 parallel to the third fold line 28 and is inserted into the first slit 20.

  The width W4 of the second insertion piece 27 is substantially the same as the width W2 of the first slit 20 and is, for example, W = 50 to 90 mm. It is set to a dimension that can be picked.

  The main body 29 is partitioned from the packing surface 13B by cuts 34 extending in a direction perpendicular to the fourth fold line 30 on both sides in the width direction. The cuts 34 divide the main body 29 via the third fold line 28. It can be bent with respect to the packing surface 13B. The insertion portion 31 can be inserted into or extracted from the first slit 20 by the bending operation of the main body portion 29.

  Openings 36 are formed at corners of the packing surface 13 </ b> B adjacent to both sides in the width direction of the main body 29 and the second slit 24. The opening 36 of the present embodiment is formed in a substantially triangular shape by obliquely cutting the corner of the packing surface 13B. The openings 36 open a part of the both sides of the main body 29 in the width direction. By inserting a finger into each opening 36, the main body 29 can be grasped from both sides in the width direction. ing.

FIG. 3 is a perspective view showing an insertion connecting portion before connection.
In order to connect the ends of the two packing surfaces 13A and 13B, first, the first insertion piece 18 is bent inward at an angle of about 90 ° via the first fold line 19, and the fold surface 23 is bent second. Fold inward through line 22 at an angle of about 90 °. Further, the insertion portion 31 is bent inward at an angle of about 90 ° via the fourth folding line 30. And the 1st insertion piece 18 is inserted in the 2nd slit 24, and the bending surface 23 is piled up on the back surface of one packing surface 13A.
Next, the main body portion 29 is bent through the third folding line 28 and pulled up in the direction of arrow a (see the two-dot chain line), and the insertion portion 31 is inserted into the first slit 20. FIG. 4 shows the plug connection 16 after connection.

  As described above, by inserting the two insertion pieces 18 and 27 into the two slits 20 and 24, the two packing surfaces 13A and 13B can be firmly connected. In particular, the second insertion piece 27 has a function of locking the first insertion piece 18 so as not to come out of the second slit 24, and unless the second insertion piece 27 is extracted from the first slit 20, The first insertion piece 18 cannot be extracted from the second slit 24.

  In order to uncouple the two packing surfaces 13A and 13B, in order to extract the second insertion piece 27 from the first slit 20, a finger is inserted into each of the two openings 36 and the main body 29 is moved from both sides in the width direction. Pick it and pull up the body 29 in the direction of arrow a. Thereby, the insertion part 31 can be easily extracted from the first slit 20. Moreover, since the front end side of the main body 29, that is, the side closer to the insertion portion 31 can be picked by the opening 36, the insertion portion 31 can be extracted from the first slit 20 with a smaller force.

Moreover, since the opening part 36 is open | released in the edge 13B1 side of the other packing surface 13B, it becomes easier to insert a finger.
The opening 36 is formed in a substantially triangular shape, and the opening area is wider toward the end 13B1 side of the other packing surface 13B. Therefore, while making the opening area of the opening portion 36 as small as possible, the tip end side of the main body portion 29 can be easily picked and the ease of extracting the insertion portion 31 is ensured. That is, the opening 36 has a larger opening area, so that it is easier to insert a finger and the main body 29 can be easily picked, but on the other hand, both sides in the width direction of the main body 29 are exposed and the surroundings are easily caught. The possibility that the second insertion piece 27 comes out of the first slit 20 unexpectedly increases. Accordingly, in the present embodiment, such a problem can be solved by increasing the opening area of the opening 36 toward the end 13B1 side of the other packing surface 13B.

FIG. 5 is a development view showing the insertion connecting portion on one packing surface of the packing material according to the second embodiment of the present invention.
In the first embodiment described above, the opening 36 is formed in a substantially triangular shape by obliquely cutting the corners of the packing surface 13B located on both sides of the main body 29 in the width direction. The opening 36 of the form is formed in a substantially square shape by cutting the corner portion into a substantially L shape. In addition, an R-shaped chamfered portion 40 is applied to a corner portion newly generated by cutting the corner portion into a substantially L shape, and the corner portion is prevented from being caught by surrounding objects.

  Also in the present embodiment, similarly to the first embodiment, by inserting a finger into the opening 36 and picking both sides in the width direction of the main body 29 with the finger, the insertion portion 31 can be easily inserted from the first slit 20. Can be extracted.

FIG. 6 is a development view showing the insertion connecting portion on one packing surface of the packing material according to the third embodiment of the present invention.
In the present embodiment, a substantially square opening 36 is formed on the packing surface 13B as in the second embodiment, but the bottom 42 of the opening 36 is rounded in an R shape. Other configurations are the same as those of the second embodiment, and in addition to achieving the same functions and effects, it is possible to prevent the packing surface 13B from cracking from the bottom 42 of the opening 36.

FIG. 7 is an exploded view showing the insertion connecting portion on one packing surface of the packing material according to the fourth embodiment of the present invention.
In the present embodiment, the chamfered portion 40 of the second embodiment and the R-shaped bottom portion 42 of the third embodiment are formed with respect to the opening 36. Therefore, in this embodiment, the same operational effects as those in the second and third embodiments are obtained.

FIG. 8 is a developed view showing the insertion connecting portion of the packing material according to the fifth embodiment of the present invention.
In the first to fourth embodiments, the opening 36 is formed with respect to the packing surface 13B. However, the present embodiment is different in that the opening 36 is formed in the main body 29. ing. That is, an opening 36 is formed by denting both sides in the width direction of the main body 29, and both sides in the width direction of the main body 29 can be picked by inserting a finger into the opening 36.

In addition, the opening 36 is formed from the distal end side of the main body 29 to the entire insertion portion 31. For this reason, the width of the distal end side of the main body 29 and the insertion portion 31 is small, and the width of the insertion portion 31 is reduced. Correspondingly, the width of the first slit 20 is also made small. Therefore, although the rigidity of the 2nd insertion piece 27 falls a little compared with the said 1st-4th embodiment, the main-body part 29 can be made easier to pick.
In the present embodiment, the width of the insertion portion 31 after the opening 36 is formed is, for example, equal to the width W4 (see FIG. 2) of the insertion portion 31 of the first embodiment. The entire width of the insertion piece 27 may be set larger in advance. If it does in this way, the rigidity of the 2nd insertion piece 27 will not fall.

FIG. 9 is a developed view showing the insertion connecting portion of the packing material according to the sixth embodiment of the present invention.
In the present embodiment, the opening 36 is formed across the main body 29 and the packing surface 13B. That is, the opening 36 of the present embodiment has a shape in which the opening 36 of the first to fourth embodiments and the opening 36 of the fifth embodiment are combined. Therefore, as in the fifth embodiment, the opening area of the opening 36 can be ensured without reducing the width of the insertion portion 31 so much. Further, a chamfered portion 40 and an R-shaped bottom portion 42 are formed in the opening 36.

The present invention is not limited to the embodiment described above, and can be appropriately changed in design.
For example, the opening 36 may be formed not on the distal end side of the main body portion 29 but on the base side or the intermediate portion, and may not be open on the end side 13B1 of the other packing surface 13B.
The present invention can be suitably applied to a packaging material 10 made of paper or plastic corrugated cardboard, and more preferably applied to a thick packaging material 10, for example, a packaging material 10 having a thickness of 3 mm or more. This is because the thicker packing material 10 is easier to pick both sides in the width direction of the main body 29, and the insertion portion 31 is easily extracted from the first slit 22.
Moreover, in the said embodiment, although the cylindrical packing material 10 is formed by connecting the edge parts of two board | plate materials with the connection structure of this invention, the both ends of one board | plate material are used for this invention. You may form the cylindrical packing material 10 by connecting with a connection structure.
Moreover, although the example which applied this invention to the cylindrical packing material 10 is shown in the said embodiment, the connection structure of this invention is connected to the connection of a part of packing surface of a box-shaped (hexahedral) packing material. You may apply.

DESCRIPTION OF SYMBOLS 10 Packing material 13A Packing surface 13B Packing surface 16 Insert connection part 18 1st insertion piece 19 1st bending line 20 1st slit 22 2nd bending line 23 Bending surface 24 2nd slit 27 2nd insertion piece 28 3rd bending line 29 Body part 30 4th fold line 31 Insertion part 36 Opening part

Claims (2)

It is a connecting structure of packing materials for connecting ends (13A1, 13B1) of two packing surfaces (13A, 13B) adjacent to each other,
A first insertion piece (18) protruding from an end side (13A1) of one packing surface (13A) and bendable with respect to the packing surface (13A);
A first slit (20) formed along an end side (13A1) of the one packing surface (13A);
A folding surface (23) that is foldably connected to the end side (13B1) of the other packing surface (13B);
A second slit (24) formed along the end side (13B1) of the other packing surface (13B) and into which the first insertion piece (18) is inserted;
A second insertion piece (27) protruding from the end side (13B1) of the other packing surface (13B) and inserted into the first slit (20),
The second insertion piece (27) includes a main body portion (29) whose base side is foldably connected to the other packing surface (13B), and is foldably connected to a distal end side of the main body portion (29). 20) and an insertion part (31) to be inserted,
A pair of openings (36) into which fingers can be inserted to grip both sides in the width direction of the main body (29) straddle the front end side of the main body (29) and the other packing surface (13B). Formed,
Further, the opening (36), the second insertion piece (27) is wider other party side more opening width of a protruding direction, and open at the end side (13B1) side of the other packaging surface (13B) A packaging material connecting structure characterized by having The insertion part (31) is formed to have the same width as the distal end side of the body part (29) between the pair of openings (36), and the width of the base part side of the body part (29) is the body part coupling structure packaging materials that the tip is wide rather than the side, and the width of the insertion portion (31), according to claim 1 of (29).

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