JP2008143530A - Connecting member for packaging material made of corrugated cardboard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new connecting member for a packaging material made of corrugated cardboard, the connecting member being designed so that the packaging material made of the corrugated board, as for a top lid or a bottom lid, is shipped in the form of a base sheet that has not been set up yet and can be set up easily in a place where packaging is required. <P>SOLUTION: Peripheral wall plates 103 are folded upright along the creases 102 of the peripheral edges of the base plate 101 of the base sheet 100 of the packaging material made of corrugated cardboard. Then, one fitting portion 1a is fitted to the upper edges of one of the adjacent peripheral wall plates, and the other fitting portion 1b is fitted in the upper edges of the other peripheral plate. The insertion flap 6 of each of the fitting portions is inserted in the thickness of each of the peripheral plates 103. Thus, the folded state (upright position) of the adjacent peripheral wall plates is maintained, and the packaging material made of corrugated board is set up into a box. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connecting member for a corrugated cardboard packaging material, and more particularly to a connecting member used for assembling packing materials such as a canopy and a bottom lid made of a base sheet (corrugated cardboard sheet).

2. Description of the Related Art Conventionally, for example, a cardboard packaging body in which an upper surface opening and a lower surface opening of a corrugated cardboard sleeve are closed with a canopy (cap), a bottom cover, or the like is known.
These canopies and bottom covers are, for example, as shown in FIGS. 1 and 2 of Patent Document 1 (Japanese Utility Model Laid-Open No. 50-123678). Is assembled along a fold line, and is assembled into a box shape whose lower surface or upper surface is open. The peripheral wall plates to be adjacent to each other are connected to each other by means such as stable fixing, stitching, tape application, adhesion, etc., so that the assembled state of the canopy and the bottom cover is maintained.
A packaging body including the above-described sleeve, canopy, bottom lid, and the like is manufactured in a corrugated cardboard factory using a base sheet, and is shipped to a packaging site for an object to be packed.
As the sleeve, there are various types of structures such as an open top surface, a bottom open surface, and an open top and bottom surface, and a canopy and a bottom cover are used as appropriate.

Japanese Utility Model Publication No. 50-123678

By the way, among the above-mentioned packing body, the sleeve can be folded and transported in a flat shape, but the canopy and the bottom cover, as described above, are fixed to the adjacent peripheral wall plates, stitched, taped, Since it is transported in a state of being assembled in a box shape fixed by means such as adhesion, there has been a problem that it is very bulky at the time of shipment, and the transport cost increases.
In order to reduce the transportation cost, it is possible to ship in the state of the base sheet before assembling and assemble in a box shape at the packing site. In this case, as described above, the peripheral wall plate (rising wall) on the outer edge of the substrate Since the peripheral wall plates to be adjacent to each other need to be connected to each other by means such as stable fixing, stitching, tape application, adhesion, etc., the packaging work becomes troublesome.

  The present invention has been made in view of such a conventional situation, and the intended process is to ship a cardboard packaging material such as a canopy or a bottom lid in the state of a base sheet before assembling, and the packing site It is an object of the present invention to provide a new connecting member for corrugated packaging material that can be easily assembled.

In order to achieve the above object, the connecting member for corrugated packaging material according to the present invention is:
A connecting member that connects the peripheral wall plates rising side by side in a box-shaped corrugated packaging material in which the peripheral wall plate rises through a fold line to the outer peripheral edge of the substrate,
One fitting part to be fitted to the upper edge part of one peripheral wall plate and the other fitting part to be fitted to the upper edge part of the other peripheral wall plate are connected in parallel with a thin bendable part. And
Each of the fitting portions has a U-shaped cross section composed of an outer plate along the outer surface of the peripheral wall plate, an inner plate along the inner surface, and an upper edge plate along the upper end surface, and is formed on the upper edge portion of the peripheral wall plate. The insertion piece is formed so as to be freely fitted, and has an insertion piece that is suspended from the upper edge plate and inserted into the thickness of the peripheral wall plate between the outer plate and the inner plate.

  By using such a connecting member, the peripheral wall plates that are adjacent to each other after the respective peripheral wall plates (rising walls) are raised along the folding line of the outer peripheral edge of the substrate in the base material sheet (corrugated cardboard sheet) of the packaging material made of corrugated cardboard If one fitting part is fitted on the upper edge part of one of the peripheral wall plates and the other fitting part is fitted on the upper edge part of the other peripheral wall plate, the insertion piece of each fitting part is A box-shaped corrugated packaging material is assembled while maintaining the bent state (rise state) of the peripheral wall plates that are inserted into the thickness of each peripheral wall plate and are adjacent to each other. That is, assembling the corrugated packaging material into a box shape extremely easily and reliably without the need to connect the peripheral wall plates to each other by fixing means such as stable fixing, stitching, tape application, and adhesion. Can do. Therefore, the packaging material made of corrugated cardboard such as the canopy and the bottom lid can be shipped in the state of the base sheet before assembling and can be easily assembled at the packaging site.

In consideration of workability and operability when the fitting portion is fitted to the peripheral wall plate, it is preferable that the insertion piece has a sharp end. Moreover, in order to maintain the fitting state of the fitting part with respect to a surrounding wall board, it is preferable that the locking step part for retaining to engage with the inside of the said surrounding wall board is formed in the said insertion piece.
Further, at least one of the outer plate, the inner plate, and the insertion piece extends in the height direction of the fitting portion (direction in which the fitting portion is fitted to the circumferential wall plate) and the peripheral wall. It is preferable that a protrusion that bites into the plate is formed.

Further, each of the fitting portions, the thin-walled portion, and the insertion piece are integrally formed of a hard synthetic resin, and the outer plate at each fitting portion is formed in a shape that covers the upper edge corner portion of the peripheral wall plate. It is preferable that
In this case, the four corner portions of the upper surface opening or the lower surface opening of the corrugated packaging material assembled in a box shape can be protected by the respective connecting members, and the durability and strength of the packaging material can be improved.

  Examples of the corrugated cardboard packaging material to be used for the connecting member according to the present invention include a box-shaped canopy that closes the upper surface opening of the cardboard sleeve, or a box-shaped bottom lid that closes the lower surface opening.

  The present invention also relates to a corrugated packaging material that is assembled into a box shape having an upper surface or a lower surface opened by bending a base sheet in which a peripheral wall plate is connected to the outer peripheral edge of the substrate via a folding line. Then, the peripheral wall plates that are adjacent to each other, which are raised via the folding line, are connected by the connecting member according to the present invention described above and include a corrugated packaging material assembled in a box shape.

  As described above, according to the present invention, the fitting portion is fitted to the adjacent peripheral wall plate raised on the outer peripheral edge of the substrate without using any special fixing means such as stable fixing, stitching, tape application, and adhesion. It is possible to assemble corrugated packaging materials such as canopy and bottom lid in a box shape very easily. Therefore, cardboard packaging materials such as canopy and bottom lid can be shipped in the state of the base sheet before assembly and can be easily assembled at the packaging site, greatly reducing the cost of transporting cardboard packaging. In addition, many effects can be expected, such as being able to contribute to cost reduction of the cardboard package.

Hereinafter, an exemplary embodiment will be described with reference to FIGS.
As shown in FIG. 7, a connecting member A for corrugated packaging material according to the present example is a base material sheet (corrugated cardboard sheet) 100 in which a peripheral wall plate 103 is connected to a peripheral edge of a substrate 101 via a fold line 102. When assembling into a shape, the adjacent peripheral wall plates 103, 103, which are raised along the fold line 102, are connected to each other, and are fitted to the upper edge of one peripheral wall plate 103 as shown in FIGS. One fitting portion 1a and the other fitting portion 1b to be fitted to the upper edge portion of the other peripheral wall plate 103 are connected in parallel by a thin-walled portion 2 that can be bent.

  Each of the fitting portions 1a and 1b has a U-shaped cross section including an outer plate 3 along the outer surface of the peripheral wall plate 103, an inner plate 4 along the inner surface, and an upper edge plate 5 along the upper end surface. It is formed so as to be freely fitted on the upper edge of the plate 103. Moreover, each fitting part 1a, 1b has the insertion piece 6 which hangs down from the said upper edge board 5 and is inserted in the thickness of the said surrounding wall board 103 between the said outer side board 3 and the inner side board 4 integrally. ing.

  Each insertion piece 6 is formed in a wedge shape having a sharp tip. Further, as shown in FIG. 5, the front surface (surface facing the inner plate 4) and the back surface (surface facing the outer plate 3) of each insertion piece 6 are arranged inside the peripheral wall plate 103. Locking stepped portions 7 and 8 are formed to prevent the locking.

  On the left and right sides of the surface of the inner plate 4 that is in sliding contact with the inner surface of the peripheral wall plate 103, and in the center of the front side surface of each insertion piece 6, the height of the fitting portions 1a and 1b (fitting to the peripheral wall plate 103). The protrusions 9 and 10 are formed so as to extend in the direction in which the attachment portions 1 a and 1 b are fitted) and bite into the peripheral wall plate 103, and the above-described locking step 7 is formed in the middle and high part of the protrusion 10. .

Each of the fitting portions 1a, 1b, the thin portion 2, the insertion pieces 6, 6 and the like are integrally formed of hard synthetic resin, and only the thin portion 2 is substantially perpendicular to the left and right fitting portions 1a, 1b. It is formed with a foldable thickness so that it can be positioned at the position.
Openings 11 and 12 for causing the insertion piece 6 to exhibit desired elasticity are formed in the vicinity of the insertion piece 6 in the outer side plate 3 and the upper edge plate 5.

  Further, the outer plate 3 in each of the fitting portions 1a and 1b is formed with a shape capable of covering the upper edge corner portion of the peripheral wall plate 103, and the upper surface opening or the lower surface of the corrugated packaging material assembled in a box shape. The four corners of the opening can be protected by the respective connecting members A.

Examples of the corrugated packaging material assembled by the connecting member A of this example include a canopy that closes the upper surface opening of the corrugated cardboard sleeve, or a bottom lid that closes the lower surface opening.
As described above, the upper and lower surfaces of these packing materials are opened by bending the base material sheet (corrugated cardboard sheet) 100 in which the peripheral wall plate 103 is continuously connected to the outer peripheral edge of the substrate 101 via the folding line 102. A packaging material made of corrugated cardboard assembled in a box shape, and the peripheral wall plates 103 and 103 to be adjacent to each other are connected by the connecting member A described above and assembled in a box shape.

  That is, after each peripheral wall plate 103 is raised along the folding line 102 on the outer peripheral edge of the substrate 101 in the base sheet 100, one fitting portion 1a is attached to the upper edge portion of the peripheral wall plates 103 of adjacent peripheral wall plates. And the other fitting portion 1b is fitted to the upper edge portion of the other peripheral wall plate 103, the insertion pieces 6 and 6 of the respective fitting portions are inserted into the thickness of each peripheral wall plate 103. Then, the peripheral wall plates 103 and 103 to be adjacent to each other are maintained in a bent state (rise state), and a box-shaped cardboard packaging material is assembled (see FIG. 6). Therefore, the corrugated packaging material can be assembled into a box shape extremely easily and reliably without requiring fixing means such as stable fixing, stitching, tape application, and adhesion.

Since the tip of the insertion piece 6 has an acute angle, the insertion piece 6 can be easily inserted into the thickness of the peripheral wall plate 103, and the protrusions 9, 10 described above are fitted to the fitting portions 1 a, 1 b with respect to the peripheral wall plate 103. Guides the insertion.
Moreover, each protrusion 9,10 and the latching step part 7 and 8 bite into the inner surface or thickness of the surrounding wall board 103, and the fitting parts 1a and 1b are firmly fixed with respect to the surrounding wall board 103, and a cardboard packaging The assembled state of the material can be maintained.
Furthermore, the upper and lower openings of the corrugated packaging material assembled in a box shape are protected by the respective connecting members A, and the durability and strength of the packaging material can be improved. The effect of.

  As mentioned above, although the example of embodiment of the connection member for corrugated cardboard packing materials concerning this invention and the corrugated cardboard packing material assembled using this was explained based on a drawing, the present invention is not limited to an illustration example. Needless to say, various modifications are possible within the scope of the technical idea described in the claims.

The perspective view which shows an example of embodiment of the connection member for corrugated packaging materials which concerns on this invention. The front view of the connection member shown in FIG. The rear view of the connection member shown in FIG. In the bottom view of the connection member shown in FIG. 1, a use state is represented by a virtual line. FIG. 2 is a longitudinal side view illustrating an enlarged main part of the connecting member illustrated in FIG. 1. The perspective view which shows the use condition of the connection member shown in FIG. The top view which shows an example of the base material sheet | seat of the cardboard packaging material which concerns on this invention.

Explanation of symbols

A: Connecting member 1a, 1b: Insertion part 2: Thin part 3: Outer plate 4: Inner plate 5: Upper edge plate 6: Insertion piece 7, 8: Locking step portion 9, 10: Projection

Claims (6)

A connecting member that connects the peripheral wall plates rising side by side in a box-shaped corrugated packaging material in which the peripheral wall plate rises through a fold line to the outer peripheral edge of the substrate,
One fitting part to be fitted to the upper edge part of one peripheral wall plate and the other fitting part to be fitted to the upper edge part of the other peripheral wall plate are connected in parallel with a thin bendable part. And
Each of the fitting portions has a U-shaped cross section composed of an outer plate along the outer surface of the peripheral wall plate, an inner plate along the inner surface, and an upper edge plate along the upper end surface, and is formed on the upper edge portion of the peripheral wall plate. A corrugated cardboard packaging material connecting member, wherein the connecting member is formed so as to be freely fitted, and has an insertion piece that hangs down from the upper edge plate and is inserted into the thickness of the peripheral wall plate between the outer plate and the inner plate.   The connecting member for corrugated packaging material according to claim 1, wherein a locking step portion for retaining the engaging piece that engages with the inside of the peripheral wall plate is formed on the insertion piece.   At least one of the outer plate, the inner plate, and the insertion piece is formed with a protrusion that extends in the height direction of the fitting portion and bites into the peripheral wall plate. Item 3. A connecting member for corrugated packaging material according to item 1 or 2.   Each of the fitting portions, the thin-walled portion, and the insertion piece are integrally formed of a hard synthetic resin, and the outer plate in each fitting portion is formed in a shape that covers the upper edge corner portion of the peripheral wall plate. The connecting member for corrugated packaging material according to any one of claims 1 to 3.   The cardboard packaging material connection according to any one of claims 1 to 4, wherein the cardboard packaging material is a canopy that closes an upper surface opening of a cardboard sleeve or a bottom lid that closes a lower surface opening. Element. A corrugated packaging material that is assembled into a box shape with an upper surface or a lower surface opened by bending a base sheet in which a peripheral wall plate is connected to the outer peripheral edge of the substrate via a folding line,
A corrugated packaging material, wherein peripheral wall plates that are adjacent to each other that are raised via the fold line are connected to each other by the connecting member according to claim 1 and assembled in a box shape.

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