JP4576302B2 - Packing material - Google Patents

Description

  The present invention relates to a packing material, and in particular, in addition to the function of transporting and storing packed items, it has a viewing window so that the packed items can be viewed from the outside while being packed, thereby providing a display container. It is related with the packing material which enabled it to fulfill the function.

  Many packaging materials made of cardboard including foamed resin and plastic cardboard are known. A packing material in which an article is packed is usually used for transportation and storage in a state of being stacked in multiple stages in the vertical direction. Further, in order to stabilize an article packed during transportation, a support member or a support pad having a shape corresponding to the shape of the article is also incorporated into the packing material. Furthermore, it is also possible to accommodate such stacked support members in a packing material.

  In particular, articles such as automobile engines, small agricultural engines, transmissions or components thereof, differentials or components thereof, and rotating electrical machines are usually heavy items, and they are packed and stacked for transportation or storage. In order to prevent the packing material from being crushed, various measures have been taken.

  For example, in the packaging device described in Patent Document 1, a tray for stacking is formed of a foamed resin material, and each tray has an area for supporting a vertical load when stacked, and a side wall portion around the tray. In addition, it is formed in the accommodation space of the article so that it can withstand high compressive strength when stacked.

  In the heavy material packaging material of Patent Document 2, a cardboard outer box is placed on a high-strength pallet, and a heavy object is packed by placing an L-shaped cross section along the corner of the outer box. In addition, it can withstand the compressive strength when stacked.

  In the packaging device for a rotating electrical machine described in Patent Document 3, an upper packaging member is mounted on the packaged rotating electrical machine, and the function is used as a load support material between the upper lid of the packaging box and the rotating electrical machine. The overall resistance when stacked is increased. Moreover, the strength with respect to stacking is further improved by simultaneously using an intermediate frame with an octagonal horizontal cross-sectional shape.

Japanese Utility Model Publication No. 7-40579 No. 7-34870 Japanese Utility Model Publication No. 7-6170

  When the packaging material is simply intended for transportation and storage of articles, the intended purpose can be sufficiently achieved with the packaging material subjected to the technical means described in Patent Documents 1 to 3 above. it can. However, for example, when the packaged item is a small farming engine, unlike an ordinary automobile engine, the packaged goods at the engine factory are transported to a store in the town as they are and stored there. Are often sold directly to farmers who are users.

  Therefore, in addition to the packing material that can be seen from the outside of the small agricultural engine packed without unpacking, that is, in addition to the function of transporting and storing the goods, as a container for display of the packed goods A packaging material that can also fulfill its function is desired, but if an opening that functions as a viewing window is formed in the side wall, resistance to the load from the top is reduced and it becomes fragile because the side wall is cut off. There is nothing to be satisfied with.

  In Patent Document 2, a part of the outer box made of corrugated cardboard is held in a free state in the heavy-weight packaging material, and when the inside is to be inspected, the free part of the outer box is placed outside. It is described to be opened. However, this packaging material has a disadvantage that the free portion cannot be opened outward in the state where the top cover is applied. In addition, a large number of members are required for packing, such as the L-shaped support column, and the configuration is complicated.

  The present invention has been made in view of the circumstances as described above, and is provided with an opening in the side wall portion that can be viewed from the outside while packing an article that is a heavy object such as a small agricultural engine. To provide a packaging material that has sufficient resistance to loads from above, and can be used as it is as a container for exhibiting goods in stores, as well as being transported and stored in a stacked state. With the goal.

  The packaging material according to the present invention is a box-shaped packaging material comprising a lid and a main body composed of a bottom portion and a side wall portion, and at least a part of the side wall portion has a main body opening that functions as a viewing window. It is formed downward from the upper edge, and a transparent hard plate is attached so as to close at least the opening of the main body. The main body has a lower support portion that supports the lower portion of the transparent hard plate, and the lid is transparent. It has the upper support part which supports the upper part of a hard board, It is characterized by the above-mentioned.

  In the packing material according to the present invention, a main body opening that functions as a viewing window is formed in the side wall of the main body, and since there is no material constituting the side wall in that portion, the side wall of the side wall is not affected by the load from above. Strength decreases. However, a transparent hard plate is attached to the opening, and the lower end is supported by the main body and the upper end is supported by the lid, so that when stacked, it acts on the side wall through the lid. The main body side wall portion can have the same or higher compressive strength as the case where the main body opening is not formed. In addition, the hard plate that supports the load is transparent, and the function as the viewing window of the main body opening is not impaired.

  Therefore, for example, when a small agricultural engine is packed in an engine factory using the packing material according to the present invention, it is stacked as it is and transported to a store, and can be stored as it is in the store. In such a case, it can be displayed at the store as it is transported without unpacking. In other words, the packaging material according to the present invention has a simple configuration and can also function as a display container. The body opening may be formed only on one side wall, and may be formed on two opposing side walls, or on three or all side walls, provided that strength is ensured. Good.

  In the packing material according to the present invention, the lower support part that supports the lower part of the transparent hard plate formed on the main body and the upper support part that supports the upper part of the transparent hard plate formed on the cover constitute the main body and the cover. The material may be the area itself that makes contact with the lower end face and upper end face of the transparent hard plate, but when the transparent hard plate is thin, concentrated stress occurs in the contact area and the material is cracked. There is a fear. In order to avoid this, an appropriate sheet having a width wider than the thickness of the transparent hard plate is used for the purpose of dispersing stress in the region where the lower end surface and the upper end surface of the transparent hard plate of the main body and the lid abut. It is desirable to dispose a plate material such as a non-foamed resin sheet or a non-foamed resin plate, or a sheet or plate material made of a material such as foamed resin.

  In another aspect of the packing material according to the present invention, the lid also has a lid side wall portion together with the ceiling portion, and the lid opening is directed upward from the lower edge of the lid side wall portion at a position facing the main body opening in the lid side wall portion. The transparent hard plate is attached so as to close the lid opening in addition to the main body opening.

  In the packing material of this embodiment, since the opening functioning as a viewing window is also formed on the side wall of the lid, a viewing window with a wider area can be obtained, which is more suitable as a display container. Also in this case, since the lower end of the transparent hard plate attached so as to cover the two openings is supported by the main body and the upper end is supported by the lid, the compressive strength of the side wall portion is not impaired.

  In the packaging material according to the present invention, the transparent hard plate may be attached to the side wall portion in the form of fitting, but is preferably attached so as to be detachable. By making it detachable, the main body or the lid and the transparent hard plate can be reused or separated and collected. A transparent hard plate can be easily attached to and detached from the opening by means such as forming a slide groove in the opening.

  In the packaging material according to the present invention, the material of the main body and the lid is not particularly limited, but is preferably foamed resin or plastic corrugated cardboard from the viewpoints of lightness, compressive strength, shock-absorbing properties, processability, and the like. The foamed resin is particularly preferable from the viewpoint of light weight and buffering properties, and among them, a foamed resin integral molded product obtained by, for example, bead-type foam molding is preferable. Plastic cardboard is preferable from the viewpoints of light weight and mechanical strength. When using plastic corrugated cardboard, it is preferable to make the bottom part and the side wall part of the main body and / or the lid separately and assemble them as a main body or a lid using plastic screws or the like.

  Examples of the resin type of the foamed resin include polystyrene resins, polyethylene resins, polypropylene resins, and polyethylene terephthalate resins, which have high compression resistance, good moldability, excellent recyclability, and low cost. For these reasons, a polystyrene resin foam is particularly preferred. The plastic corrugated board includes structurally plastic corrugated board such as a honeycomb board, a hollow structure plate, and a hollow laminated board. Examples of the resin species include polypropylene resins and polyethylene resins.

  The transparent hard plate used in the packing material according to the present invention is transparent to the extent that the packed article can be seen from the outside, and the longitudinal compressive strength is the compressive strength in the longitudinal direction of the main body side wall or lid side wall. Any material can be used as long as it satisfies the condition of approximately equal to or greater than, but from the viewpoint of processability, impact resistance, etc., it is desirable to be a non-foamed resin plate, , Polyethylene terephthalate resin, acrylic resin and the like. It may be colorless and transparent or colored and transparent. The thickness may be appropriately set in consideration of the required longitudinal compressive strength, but is about 3 to 10 mm in the case of a non-foamed resin plate. If it is thinner than 3 mm, the required compressive strength in the longitudinal direction may not be obtained. It may be a laminated body of the same kind of resin plate or different kind of resin plate. Furthermore, it is preferable to make a transparent hard plate with the same resin type as the main body and the lid from the viewpoint of facilitating the separation process.

  The packaging material according to the present invention has a box shape as a whole, and the horizontal cross-sectional shape is arbitrary on the condition that the top surface and the bottom surface are substantially parallel so that they can be easily stacked. However, a packaging material in which the horizontal cross-section is chamfered at each corner portion of the main body having a square or rectangular shape and the side wall portion forms an octahedral shape as a whole is preferable because it has higher resistance to compression in the vertical direction. . In addition, it is preferable to form a groove on one of the upper surface and the lower surface and to form a ridge that fits into the groove on the other because stability during stacking can be obtained.

  In the packaging material according to the present invention, in order to increase the stability of the article to be packaged, it is desirable to arrange a packaging member having a recessed portion corresponding to the shape of the article to be accommodated on the bottom of the main body or the lid ceiling. Such a packaging member may be an integrally molded product with the main body or the lid, or may be made as a separate member and incorporated when the article is packed. When the main body and the lid are foamed resin molded products, it is desirable to integrally mold the packaging member. When the main body and the lid are made of plastic corrugated cardboard, the packaging member is separately made as a foamed resin molded product and incorporated. It is desirable to do so.

  By using the packing material according to the present invention, it is possible to transport and store articles that are heavy items packed in a factory and display them at the store in the state of being initially packed. In particular, it is effectively used as a packaging material for articles that are required to be displayed and stored in stores, such as small agricultural engines.

  Hereinafter, the packaging material of this invention is demonstrated, referring drawings. 1 is an exploded perspective view showing a first embodiment of a packaging material according to the present invention, FIG. 2 is a perspective view showing a state after assembly, and FIG. 3 is a cross-sectional view taken along line aa in FIG. is there. FIG. 4 is an exploded perspective view showing a second form of the packing material according to the present invention. 5 is an exploded perspective view showing a third embodiment of the packaging material according to the present invention, FIG. 6 is a perspective view showing a state after the assembly, and FIG. 7 is a cross-sectional view taken along the line bb of FIG. is there.

  A packaging material A1 shown in FIG. 1 includes a main body 10, a lid 30, and a transparent hard plate 50, and has a box shape as a whole. The lid 30 and the main body 10 are integrally molded products of foamed resin, and the transparent hard plate 50 is a non-foamed resin plate made of the same resin material. In this example, polystyrene resin is used as the resin.

  The main body 10 includes a bottom portion 11 and four side walls 12, 13, 14, and 15 constituting the side wall portion, and the four corner portions of the side wall portion are chamfered to form an octahedral shape as a whole. On the inner surface of the bottom portion 11, a recessed portion 16 is integrally formed as a packaging member in accordance with the shape of the article to be packed, and a recessed groove 17 is formed in a required shape on the outer surface. In addition, the inner surface of the bottom part 11 may be formed into a flat surface, and a packaging member provided with the recessed part 16 may be separately formed and accommodated in the main body 10.

  In this example, two opposing side walls 12 and 14 are formed with main body openings 18 and 18 that are substantially rectangular from the upper edge to the lower side, and the left and right sides of the main body openings 18 and 18 respectively. A slit 19 is formed at the peripheral edge of the bottom. Moreover, the recessed part 20 which functions as a handle is formed in the outer surface of the other two opposing side walls 13 and 15.

  The lid 30 has the same horizontal cross-sectional shape (octahedral shape) as the main body 10, and includes a ceiling portion 31 and four lid side walls 32, 33, 34, and 35 constituting the lid side wall portion. On the inner side surface of the ceiling surface 31, a recessed portion 36 (FIG. 3) matching the shape of the article to be packed is integrally formed as a packaging member, and formed on the outer side surface of the bottom portion 11 of the main body 10 on the outer side surface. A ridge 37 having a shape corresponding to the concave groove 17 is formed. In this case as well, the inner surface of the ceiling surface 31 may be formed into a flat surface, and a packaging member provided with the recessed portion 36 may be separately formed and accommodated in the lid 30.

  The two lid side walls 32, 34 facing each other so as to face the main body openings 18, 18 formed on the side wall portion of the main body 10, are lid openings 38 having a substantially rectangular shape upward from the lower edge thereof. , 38 are formed, and the same slit 39 as the slit 19 formed on the main body 10 side is formed at the peripheral edge of each lid opening 38, 38. 1 and 2, the lid opening 38 on the lid side wall 34 side does not appear. In addition, a concave portion 40 that functions as a handle that also serves as a stealer is formed on the outer side surfaces of the other two opposite cover side walls 33 and 35, and a concave portion 41 that serves as a stealer portion is also provided on the upper surface of the ceiling portion 31. , Each is formed.

  The transparent hard plate 50 has a size and shape that can cover both the main body opening 18 formed in the main body 10 and the lid opening 38 formed in the lid 30, and the thickness is a peripheral portion of both openings. It is the thickness which can be fitted in the slits 19 and 39 formed in this.

  When packing the article, the main body 10 is placed, and the transparent hard plate 50 is inserted into the slit 19 formed at the peripheral edge of the main body opening 18. Thereby, the main body opening 18 is closed. In this state, the upper area of the transparent hard plate 50 protrudes upward from the upper edge of the main body 10. Next, the article to be packed is stably installed in the main body 10 using the recessed portion 16.

  After storing the article, cover it. At that time, the lid 30 is formed so that the region protruding above the transparent hard plate 50 enters the slit 39 formed in the peripheral edge portion of the lid opening 38 formed in the lid side walls 32 and 34 of the lid 30. Is gradually dropped from the top. A perspective view of the integrated state is shown in FIG. 2, and a cross-sectional view thereof is shown in FIG. As shown in the drawing, the packing material A1 has a wide opening area on two opposing side walls, and a transparent hard plate 50 is attached thereto, so that the packaged article can be easily removed from the outside as it is. It can be visually recognized.

  When the packing material A1 is transported or stored, it is usually stacked in multiple stages, so that the packing material positioned at the lower level is loaded with the packing material positioned at the higher level. The load acts as a vertical load mainly on the lid side walls 32, 33, 34, 35 and the main body side walls 12, 13, 14, 15 via the top plate portion 31 of the lid 30. In the packing material A1 according to the present invention, openings are formed in the two lid side walls and the main body side wall, and resistance to vertical load is reduced as compared with the other two side walls having no opening. However, a transparent hard plate 50 is disposed in the opening, and its lower end is supported by the main body at the bottom portion of the slit 19 formed in the main body 10 as shown in the sectional view of FIG. The upper end portion is supported by the upper portion of the slit 3 formed in the lid 30. That is, since the main body 10 has a lower support portion that supports the lower portion of the transparent hard plate 50, and the lid 30 has an upper support portion that supports the upper portion of the transparent hard plate 50, the transparent hard plate 50 has its side wall. It functions as a member that supports the load from above (vertical load) together with the portion, and the structural weakness against the vertical load caused by forming the opening is eliminated.

  Therefore, even when the packing material A1 in which heavy objects are packed is stacked, it is possible to effectively avoid the occurrence of breakage in the side wall portion. In the example shown in the figure, the ridges 37 are formed on the upper surface of the lid 30 and the concave grooves 17 having a shape corresponding to the ridges 37 are formed on the lower surface of the bottom of the main body. It is done. Even if the packing material A1 transported at the store is displayed as it is without unpacking, the purchaser can easily see the goods packed through the transparent hard plate 50, so that the packing material A1 remains as it is. It can also serve as a display container.

  FIG. 4 shows a second embodiment of the packing material according to the present invention, and corresponds to FIG. This packing material A2 is different from the above-described packing material A1 in that the lid 30 does not have the side wall opening 38. Since other configurations are substantially the same as those shown in FIG. 1, members having the same functions are denoted by the same reference numerals, and description thereof is omitted. In this packing material A2, the height of the transparent hard plate 50 is such that the upper edge of the transparent hard plate 50 substantially coincides with the upper edge of the main body 10 when attached to the main body opening 18 formed in the side wall portion of the main body 10. ing. In this packing material A2, the lower support portion of the main body that supports the lower portion of the transparent hard plate 50 is the bottom portion of the slit 19 like the packing material A1, but the upper support portion that supports the upper portion is the lower surface portion of the lid 30, that is, When the lid is closed, the lid 30 comes into contact with the upper edge of the side wall of the main body 10.

  The packaging material A3 shown in FIGS. 5 to 7 is a third embodiment of the packaging material according to the present invention, and plastic corrugated cardboard is used as the material. This packing material A3 is also composed of a main body 10A, a transparent hard plate 50, and a lid 30A. However, here, the main body 10A is composed of the separated bottom 60 and side wall 70, which are integrated using a plastic screw 80 (FIGS. 6 and 7) or the like. That is, the bottom portion 60 has a bottom plate 61 and a rising piece 62 from the side edge thereof, and a screw transmission hole 63 is formed in the rising piece 62. The side wall 70 is composed of four side walls 72, 73, 74, 75 and chamfered areas at the corners, and openings 78, 78 of a required size are formed in the two opposing side walls 72, 74. Yes. A guide member 79 for the hard plate 50 that is transparent in the vertical direction is integrally attached along the left and right side edges of the opening 78. A screw transmission hole 76 is formed at the lower edge of the side wall part 70 at a position where the screw transmission hole 63 formed in the rising piece 62 of the bottom part 60 faces when the bottom part 60 is attached. A similar screw transmission hole 77 is also formed at the upper edge of the side wall 70.

  The lid 30A is composed of a top plate portion 31A and a lid side wall 32A that hangs down from the side edge thereof. Each lid side wall 32A has screw transmission holes 77 formed on the upper edge of the side wall portion 70 when the lid is closed. A screw transmission hole 33A is also formed at the opposing position.

  The transparent hard plate 50 is the same as that used in the packaging materials A1 and A2. However, the horizontal width is such that the transparent hard plate 50 can enter between the left and right guide members 79 arranged along the left and right side edges of the opening 78 formed in the side wall 70 of the main body 10A. The horizontal length is supported in such a manner that it can be attached to and detached from the body, and the length in the vertical direction is as shown in FIG. 7 when the lower end thereof contacts the inner surface of the bottom plate 61 of the main body 10A when assembled as a packing material. The upper end of the lid 30A is in contact with the inner surface of the top plate portion 31A of the lid 30A.

  At the time of packaging, first, the bottom 60 is disposed on the lower end side of the side wall 70, and the screw transmission holes 63 and 76 are integrated through the plastic screw 80 to form the main body 10A. Next, the transparent hard plate 50 is inserted between the left and right guide members 79 arranged along the opening 78 formed in the side wall 70. The transparent hard plate 50 stops moving when the lower end of the transparent hard plate 50 comes into contact with the inner surface of the bottom plate 61, and at that time, the upper end of the transparent hard plate 50 is located at substantially the same position as the upper edge of the side wall portion 70.

  If necessary, a packaging member (not shown) made of foamed resin or the like for stabilizing the posture of the article to be packed is placed on the bottom surface of the main body 10A, and then the article to be packed is accommodated in the main body 10A. Then put the lid on. By inserting a plastic screw 80 into a screw transmission hole 33A formed in the lid side wall 32A of the lid 30A and a screw transmission hole 77 formed in the upper edge of the side wall portion 70 and integrating the main body 10A and the lid 30A, the packaging is finish.

  Also in the case of this packing material A3, the side wall 70 of the main body 10A has openings 78 formed at two locations, and the side walls 72 and 74 having the opening 78 are compared with the other side walls 73 and 75. , Resistance to vertical load is small. However, a transparent hard plate 50 is disposed on the side walls 72 and 74 having the opening 78, and as shown in the cross-sectional view of FIG. Since it is in contact with the inner surface and its upper end is in contact with the inner surface of the top plate portion 31A of the lid 30A, the main body 10A supports the lower portion of the transparent hard plate 50 as in the case of the packing materials A1 and A2. The lid 30A can function as an upper support portion that supports the upper portion of the transparent hard plate 50. As a result, the transparent hard plate 50 is integrated with the side wall portion and functions as a member that supports the load from above (vertical load), and the opening portion is also formed in this form of the packing material A3. The structural weakness against vertical loading due to is eliminated.

The perspective view which decomposes | disassembles and shows the 1st form of the packing material by this invention. The perspective view which shows the state after the assembly of the packing material shown in FIG. Sectional drawing by the aa line of FIG. The perspective view which decomposes | disassembles and shows the 2nd form of the packing material by this invention. The perspective view which decomposes | disassembles and shows the 3rd form of the packing material by this invention. The perspective view which shows the state after the assembly of the packing material shown in FIG. Sectional drawing by the bb line of FIG.

Explanation of symbols

A1, A2 ... packing material according to the present invention, 10 ... main body, 11 ... bottom, 12, 13, 14, 15 ... four side walls constituting the side wall, 18 ... main body opening, 19 ... slit, 30 ... lid, 31 ... ceiling part, 32, 33, 34, 35 ... four lid side walls constituting the lid side wall part, 38 ... lid opening part, 39 ... slit, 50 ... transparent hard plate

Claims (5)

A lid consisting of a ceiling portion and the lid side wall portion, a packaging box-shaped consisting of a body consisting of a bottom portion and the body side wall portion, the main body opening which acts as a viewing window on at least a portion of the body sidewall portion Is formed downward from the upper edge of the main body side wall, and a lid opening is formed upward from the lower edge of the lid side wall at a position facing the main body opening in the lid side wall. is attached transparent hard plate so as to close the present body opening and the lid opening, the body has a prop unit for supporting the lower portion of the transparent hard plate, lid supports on supporting the upper portion of the transparent hard plate Packing material characterized by having a part. The packaging material according to claim 1 , wherein the transparent hard plate is detachably attached. Body and lid materials are foamed resin, packaging material according to claim 1 or 2, characterized in that the transparent hard plate is a non-foamed resin plate. The packaging material according to claim 1 or 2 , wherein a material of the main body and the lid is a plastic cardboard, and a transparent hard plate is a non-foamed resin plate. Packaging material according to any one of claims 1 to 4, lid side walls and the body sidewall by performing chamfering of the corners, characterized in that there is a octahedron.

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