JPH0199982A - Packaging - Google Patents

Abstract

PURPOSE:To make the package excellent in shape retention and suitable for mechanization and automation of packaging, by supporting a packaged product for insertion of the box body in a recess formed in the cushion on the rectangular ceiling and bottom boards almost coincident to a box body opening, and by fixing four lower flaps and upper flaps to the bottom and ceiling boards. CONSTITUTION:A box body 5' extends short flaps 7', 8' above and below four side boards 6' and forms a packaging box, using the body 5' as well as bottom board 3' and ceiling board 11. A counter pair of lower cushions 4', 4' are fixed to the top of the board 3', and a product 2' is stored into the recess. A counter pair of upper cushions 12 are fixed in advance to the bottom of the ceiling board 11 so as to sandwich the product 2' from above and below by forming an up-down pair in the same form as that of the board 3'. Four lower flaps 7', 7'... are fixed to boards 3', respectively; and four upper flaps 8', 8'... are fixed to boards 11, respectively.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention mainly uses a cardboard packaging box suitable for use as a packaging box for transporting products, especially as an outer container for household electrical appliances and the like, which are large in weight relative to their volume. This is related to the packaging method.

(Background of the Invention) In general, packaging containers for products (objects) are suitable for transporting and selling the goods, and have a basic purpose of preventing the contents from being damaged or soiled. In addition to using materials with suitable strength and rigidity, cushions are constructed to have a predetermined internal volume according to the shape and size of the contents, or cushions such as foamed plastic are used in consideration of the impact resistance of the contents. It is common to use a combination of materials, but at the same time, in order to reduce packaging costs, especially for products such as home appliances that are mass-produced, it is necessary to simplify and standardize the packaging process, or to reduce packaging costs. mechanization,
Automation is also an issue that is always desired.

The present invention is based on these background problems regarding product packaging, and aims to save and optimize the amount of materials used when using cardboard, which is widely used as a material for packaging containers, and to mechanize packaging operations. The present invention provides a packaging method using a packaging box as an outer product container, which is extremely effective for automation.

(Prior Art) As is already well known, a cardboard box has extremely high strength against compression, but on the other hand, it cannot be said to have high rigidity against bending. As shown in Fig. 2, in the case of a type in which flaps extended through a fold line are folded together to close the opening, when the weight of the contents becomes large, the folded flaps may deform and become stuck at the bottom. be. Therefore, in conventional packaging boxes, the material is often determined so that the folded flaps have enough bending rigidity to prevent deformation due to the weight of the contents.

However, in this configuration, the body of the packaging box, that is, the side wall plates, is made of a material that is stronger than necessary, resulting in wasted materials in this area.

Additionally, in order to improve the structural strength of the bottom of the packaging box, instead of simply folding the flaps together, it may be possible to glue the flaps together or mechanically secure them with a stitcher or the like. In this case as well, the rigidity of the flap cannot be made too small, and since the flap needs to close the bottom opening of the packaging box, it is inevitable that the flap will have some overlapping parts.
There is also the problem that the flap must be made longer.

Another problem with packaging methods using conventional packaging boxes is that, for example, it is not suitable for packaging products transported from an assembly line (products to be packed) on an automated or mechanized line. The problem is that it doesn't.

In other words, when storing and packaging a product in a rectangular parallelepiped-shaped packaging box, in the conventional box described above, the bottom opening is first closed, and then the product is inserted through the open ceiling opening along with the specified cushioning material. After this, there is a process of closing the ceiling opening, so in order to hang heavy products from above inside the box, it is necessary to use, for example, a vacuum chuck with a predetermined vertical movement stroke. In addition to requiring a separate hanger device, which increases the size and complexity of ancillary equipment and is disadvantageous in terms of cost, it is also difficult to use cushioning materials, which are essential for packaging, because they must be inserted at the same time. This is because the shape and insertion position are also subject to significant restrictions.

(Problems to be Solved by the Invention) The present applicant has conducted various studies on various problems in product packaging, and has developed a method that connects the four side walls of a rectangular parallelepiped, taking into consideration the strength conditions of the packaging box. A box body having an upper flap and a lower flap extending from the upper and lower edges, respectively, and a rectangular shape that closes the bottom opening (and also the ceiling opening) of the box body. We have developed a packaging box in which a bottom plate (ceiling plate) is made of a flat plate material, and a lower flap is bent and fixed to the bottom surface of the bottom plate. There is.

When using such a packaging box, after placing the product with the cushioning material assembled on the bottom plate, insert the box body assembled into a rectangular tube shape, and then insert the box body under the box body. It becomes possible to take steps to fix the side flaps and the bottom plate, and it becomes possible to select materials that match the design conditions for the different functions of the box body and bottom plate, and also to solve the constraints of the box body. Since products can be placed on the bottom plate without any problems, it has the advantage of being extremely suitable for automation and mechanization of packaging.

The present invention basically relates to a packaging method using a packaging box formed by combining this type of box body and bottom plate, and is particularly suitable for automation and mechanization of lines, and also reduces cushioning material, various shapes, and mounting methods. This was done for the purpose of expanding the selection range of positions.

In other words, if we further examine the relationship between the packaging box, product, and cushioning material in this type of packaging, it becomes clear that this type of packaging The most important things in packaging are:
Regarding the strength of the bottom plate and the cushion interposed between this bottom plate and the lower part of the product, the function of the upper part of the product as a cushioning material will be satisfied to a certain degree, and furthermore, such products For example, in the case of a product with a rectangular parallelepiped cabinet such as a TV, if the cushions are applied to the upper left and right and lower left and right square parts of the rectangular parallelepiped, the cushions will not be applied to other parts. Since there is no need to use cushioning material, the amount of cushioning material required can be reduced.
If the lower cushion in contact with the bottom plate is fixed to the top surface of the bottom plate in advance, its position can be set with sufficient precision, and the fitting of the box body after the product is placed on the bottom plate with the lower cushion fixed to the bottom plate is easy. This was done in consideration of the fact that operations such as insertion and setting of the upper cushion can be automated relatively easily and can be handled by mechanized processes.

(Means for Solving the Problems) Therefore, the packaging method according to the present invention, which has been made to achieve the above object, has the following features: A box body section having short upper and lower flaps that extend from the wall section along the upper and lower edges of each side wall as broken lines and whose adjacent flaps do not overlap each other; A ceiling plate having a matching rectangular shape and a bottom plate having a rectangular shape substantially matching the bottom opening of the box body and having one or more lower cushions fixed to the top surface are prepared in advance. After supporting the packaged product in the recess formed in the cushion on the bottom plate, the box body is inserted, and then each of the lower flaps extending from the four side walls is fixed to the lower surface of the bottom plate to close the bottom opening. The ceiling opening is closed by fixing each upper flap extending from the four side walls to the upper surface of the ceiling plate placed after the upper cushion is loaded.

(Example) Examples of the present invention will be compared with comparative examples (Figs. 1 to 4) of packaging boxes with foldable upper flaps, and will be explained in more detail in Figs. 5 to 7. Explain in detail.

Comparative Example A-H shown in FIG. The tray 1 is suspended stationary by a very simple hanger device or clamping means from the left and right sides, and in this state, the tray 1 is attached to the product 2.
It is moved out from below, and a bottom plate 3 having a shape that matches the bottom opening of the box body, which will be described later, of the packaging box is housed in the same lower position. The bottom plate 3 has a pair of opposing lower cushions 4.4 each having a recess 4a into which the lower corner of the product 2 is fitted.
The bottom plate 3 having the lower cushion 4.4, which is fixed in advance by adhesive or the like at a predetermined position on the upper surface of the bottom plate, is raised toward the bottom of the product 2 in a stationary suspended state, and the recessed portions 4a, 4 are raised.
Fit a into the lower part of the product 2.

When the product transported in this state (see Figure 1 C) reaches position D, the box trunk, which forms the main body of a cardboard packaging box that is folded and stored in a separate hopper (not shown), 5
are taken out one by one by a set-up caser (not shown), set up three-dimensionally to form a box shape, and then inserted into the product 2 from above.

This box body 5 consists of four side wall plates 6 forming the four side walls of a rectangular parallelepiped.
, a short lower flap 7 extending downward along the lower edge of each side wall plate 6 as a fold line, and an upper flap 8 extending upward along the upper edge of each side wall plate 6 as a fold line,
In this comparative example, the upper flap 8 closes the ceiling opening by folding.

Next, with the outer periphery of the box body covered, the box contains the product's instruction manual, etc., and is fitted to the upper corner of product 2 to serve as a backing between the inside of the box and the ceiling cover and the product. (see Figure 1C), fold the four lower flaps 7. are folded together to complete the packaging (see Figure 1C).

Note that the operation of gluing the lower flap 7 to the lower surface of the bottom plate 3 in the process shown in FIG. The entire product can be sufficiently supported by the support stand 9, and therefore the lower flap 7 is fixed to the lower surface of the bottom plate by an automated device while the entire product is simply placed on the support stand 9 of the conveyor. In addition, if necessary, the fixing of the lower flap 7 can be carried out in stages rather than once.

The lower flap 7 may be fixed by adhesive or mechanically by using a stitcher or the like. FIG. 1 H° shows the bottom surface of the packaging box after packaging has been completed.

In the above process description, the usual processing that is carried out in this type of packaging work, such as wrapping the product in position B with a PE bag as the primary packaging, can be carried out as necessary, and the box and body Prior to fitting and inserting the part 5, an upper cushion is placed and fitted on the upper part of the product, or the box body part 5 is prepared and waited in a position below the conveyor support table mentioned above in a state surrounding it, and then supported. The product 2 and the bottom plate 3 may be moved and supported on the table, and the box body 5 may be inserted from below the product 2, and these can be selected and adopted as appropriate depending on the layout of the packaging line.

For the packaging box as an outer product container formed by the above procedure, the material for the bottom plate is selected to have high rigidity according to the weight of the product content, and the inner volume determined by the shape and size of the content is selected. By forming the outer circumferential shape of the bottom plate to match the opening of the box body, the required strength for corrugated cardboard, which has a high tensile strength, is reduced, and
Since the lower flap is short, there is also the advantage that the dimensioning of the box body is also advantageous.

FIG. 3 shows an enlarged view of the lower cushion 4.4 and the bottom plate 3 that are fixed together in advance in the above-mentioned packaging method. In this example, since the product to be packed is a rectangular parallelepiped television, A recess 4a into which the lower corner of the product fits;
A pair of opposing lower cushions 4.4 having 4a are fixed to the upper surface of the bottom plate 3, but due to the weight of the product, for example, as shown in FIG.
Lower cushion 10.0a, 10a...
10... may be fixed to a predetermined position on the upper surface of the bottom plate 3.

Using this type of cushion is not only extremely difficult to load and position in conventional packaging methods, but also difficult to automate and mechanize. Since the shape and size can be limited while ensuring the necessary and sufficient function as a cushion, it is advantageous in saving materials and lowering costs.

Note that the shape, number, etc. of the upper cushion can be selected as appropriate.

Example Next, examples of the present invention will be described.

The embodiment of the present invention illustrated in FIGS. 5 to 7 has the effect of the fixed relationship between the lower flap and the bottom plate of the comparative example based on FIGS. In addition to this, the same effect is also achieved on the openings in the ceiling. In other words, this example has the same structure and can be assembled as the comparative example, except that the structure for closing the ceiling opening is different, and FIG. It shows a developed diagram.

The box body 5' in this figure has short flaps 7° and 8° extending above and below the four side wall plates 6°, so that the bottom plate 3 and ceiling plate 11 can be used together with the box body 5°. A packaging box is formed by this.

In this case, since the ceiling plate 11 does not support the weight, there is almost no requirement for its strength as the container itself, except for the function of preventing twisting of the box body, which will be described later, and it is sufficient to shield the contents from the outside air. In some cases, it is sufficient. Note 9
′ is the adhesive allowance for forming the box body.

In this example, an upper cushion 1 is placed on the lower surface of the ceiling board 11 in advance.
2 are attached to a pair facing each other, and have the same shape as the bottom plate 3' and form an upper and a lower pair so that the product 2° is sandwiched from above and below.

It goes without saying that the upper cushion may be separate and independent from the ceiling board.

The packaging box of this embodiment having the above-mentioned configuration has four lower flaps 7°, 7°, .
The use of a method in which the panels are each fixed to the ceiling plate 11 has the advantage of exhibiting an unprecedentedly excellent effect in terms of shape retention. In other words, corrugated cardboard packaging boxes generally have poor shape retention against horizontal forces, and are prone to twisting, where the four sides resemble a parallelogram, but in the packaging box of this example, An advantageous configuration in which the bottom plate and the ceiling plate are incorporated in a shape that matches the bottom opening and the ceiling opening of the box body, so that the bottom plate and the ceiling plate function effectively as members that resist twisting movements. This is because it accomplishes the following.

FIG. 7 shows the structure of a packaging box according to a modification of the embodiment of the present invention shown in FIGS. The cushions 4 and 14 are each provided with an arcuate recess. This is effective as a packaging shape for products with a special non-rectangular shape such as a cathode ray tube. The automation and mechanization of the packaging can also be carried out in substantially the same manner as in the embodiments described above.

In addition, in each of the above embodiments, in order to attach and secure the box body and the bottom plate/ceiling plate, the lower flap and upper flap provided on the box body are attached to the lower surface (upper surface) of the bottom plate (ceiling plate). ), but if necessary, a flap for sticking/fixing is extended from the edge of the bottom plate or ceiling plate, and a flap is attached to the bottom of the box body. Of course, without providing a flap or an upper flap, a flap such as the bottom plate may be bent and brought into contact with the outside of the box body to be attached and fixed.

This type of deformation is advantageous for the strength of the bottom plate side, as the weight of the packaged product on the bottom plate acts as a shearing force on the bonded/fixed part, but on the other hand, it may cause problems in terms of appearance. However, there is a problem in that the flaps protrude on the surface of the box body, which poses a problem in terms of aesthetics, and should be appropriately adopted as necessary, taking into consideration the selection of materials, etc.

(Effects of the Invention) As described above, the packaging method of the present invention consists of constructing each of these parts from separate members in order to satisfy the strength requirements of each component of a conventionally known cardboard packaging box. , not just a combination of these separate members,
Since these are combined in a specific relationship in which the four lower flaps and the upper flap are all fixed to the bottom plate and ceiling plate, they retain their shape in terms of strength and prevention of twisting. It has the advantage that it is suitable for mechanization and automation of packaging work when this type of packaging box is used as a packaging container, using a packaging box that has excellent properties and does not waste materials. ,
Its usefulness is extremely great.

[Brief explanation of the drawing]

Drawings Figure 1 is a diagram for explaining the packing method of a comparative example. Figure 1 is a diagram showing the assembly and packaging work of an automated package according to the process order, and Figure 2 is a diagram showing the fixing of the bottom plate and lower flap. FIG. 3 is a diagram for explaining the process, and FIG. 3 is a diagram showing an assembly in which the lower cushion is fixed to the bottom plate in advance, and FIG. 4 is a diagram showing another example of the same assembly. FIG. 5 is a developed view of the box body of a packaging box with a ceiling plate used in carrying out the method of the present invention, FIG. 6 is a developed view of a packaged body when the packaging box shown in FIG. 5 is used, FIG. 7 is a developed view of a modified example of the package shown in FIG. 6. 1: Tray 2: Product 3.3°, 3": Bottom plate 4.4', 4": Lower cushion 4a, 4a', 4a": Recessed part 5.5°, 5": Box body 6.6 ', 6": Side wall 7.7°, 7" Two lower flaps 8.8°, 8" Two upper flaps 9: Support base 10: Lower cushion 10a:
Recess 11.13: Ceiling plate 12.14: Upper cushions 12a, 14a: Recess and 3 others Figure 2 Q Figure 3 Figure 5 Figure 6 Figure 7

Claims (1)

[Scope of Claims] 1. A rectangular parallelepiped with continuous wall parts forming four side walls, extending from the wall part with the upper and lower edges of each side wall as broken lines, and with adjacent flaps overlapping each other. A box body having a short upper flap and a lower flap, a ceiling plate having a rectangular shape that substantially matches the ceiling opening of the box body, and a rectangular shape substantially matching the bottom opening of the box body. , and a bottom plate having one or more lower cushions fixed to the upper surface thereof, and after supporting the packaged product in the depression formed in the cushion on the bottom plate, inserting the box body, Next, each of the lower flaps extending from the four side walls is fixed to the lower surface of the bottom plate to close the bottom opening, and the ceiling opening is formed by attaching each of the lower flaps extending from the four side walls to the upper surface of the ceiling plate placed after loading the upper cushion. A packaging method characterized in that the upper flaps are individually secured and closed. 2. The lower cushion is fixed on the bottom plate prepared in advance.
The packaging method according to claim 1, characterized in that the packaging method includes a pair of opposing packaging fittings that fit into the lower corners of the product. 3. The lower cushion is fixed on the bottom plate prepared in advance.
Claim 1 characterized in that it is located in a square of the bottom plate.
Packaging method described in section. 4. The packaging method as set forth in claim 1, wherein the lower hook fixed on the bottom plate prepared in advance is one in the center of the bottom plate. 5. The packing method according to claims 1 to 4, wherein the upper cushion is fixed to the lower surface of the ceiling board in advance.