JPS6344372Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a shock-absorbing packaging material, and attempts to provide a material that has good shock-absorbing properties for objects to be packaged and can be compactly and easily packaged.

Conventionally, when it comes to packaging small radios, cassette tape recorders, and other electrical appliances and their attached parts such as headphones and batteries, the main items and accessories are wrapped separately in foam sheets or paper boxes, etc., and then placed in a tray. The products were stored in cushioning material, etc., and then packaged in an outer case such as a gift box.

Therefore, packaging is very time-consuming, the cost of packaging materials is high, and storage efficiency tends to be wasted, so improvements have been desired.

Additionally, a non-foamed resin sheet molded product in which storage recesses are formed in advance to match the external shape of each item is used, and items are stored in each recess.
Manufacturing sheet molded products with complexly shaped recesses is troublesome, there is insufficient cushioning protection for the top surface of the product, and it is necessary to provide a certain distance between each of the multiple recesses, which reduces storage efficiency. There were also problems with this point.

Furthermore, with conventional packaging materials, if the entire surface of the stored item is covered with the packaging material in order to increase the cushioning protection,
The stored articles cannot be visually recognized from the outside, which is inconvenient during inspection, etc., and is also unfavorable in terms of display effect.

Therefore, in this invention, we provide a cushioning packaging material that can eliminate the above-mentioned drawbacks and inconveniences of the conventional technology.As for its structure, the entire structure is integrally formed of a synthetic resin sheet, and the material is made of a synthetic resin sheet. The main body piece, the side piece, the main body piece, and the side piece are successively connected to each other so that they can be bent freely, so that it can be assembled into a frame shape so that both the main body pieces face each other, and a cover piece is attached to one end in the longitudinal direction. are connected to each other so that they can be bent freely, and when the frame is bent and assembled, the outer surface portion of the other end of the main body piece or the side surface that comes into contact with the cover piece has a cover piece contact width. A stepped portion for folding the cover is formed by recessing a corresponding portion inward from other portions, and partially abuts on each of the main body pieces along the outer shape of the stored article. The supporting protrusions are provided to support the article, and the supporting protrusions provided at corresponding locations on both main body pieces are formed such that their tips come into contact with each other during assembly. A feature is that a window is formed in the section for viewing stored items.

Next, embodiments of this invention will be illustrated below with reference to the drawings.

Reference numeral 1 indicates the entire cushioning packaging material, which has a rectangular plate shape integrally formed from a synthetic resin sheet such as a foamed polystyrene sheet by a sheet forming method such as vacuum forming.

The cushioning packaging material 1 includes, along the longitudinal direction, a relatively wide rectangular main body piece 10, a relatively narrow elongated side piece 20, a main body piece 30 similar to the above, a side piece 40, and the most The narrow cover pieces 50 are sequentially connected to each other at their boundary portions via V-shaped bending grooves 60. Note that the cover piece 50 may be connected to the end on the main body piece 10 side instead of the end on the side piece 40 side.

Then, bend each piece one by one at right angles, and both main pieces 1
0 and 30 are assembled in a square frame shape so that they face each other, and the cover piece 50 is assembled with each assembled piece 1.
0, 20, 30, and 40 on the outer surface of the other end of the frame-like body (in the figure, it is the main piece 10, but it may also be the side piece 40), so that the cushioning packaging material 1 can be assembled. There is.

Note that, of the main body piece 10 (or side piece 40) on which the cover piece 50 is folded, the end corresponding to the width that the cover piece 50 comes into contact with is recessed inward from the other parts for folding. A stepped portion 11 is formed (see FIG. 5).

Next, on the surface of each piece 10 to 40 that becomes inward during assembly, at least one piece of the stored article is placed in partial contact along the outer surface shape of an appropriate part of the stored article to support and protect the stored component. Depending on the case, a plurality of protrusions 12, 12', 13, 21, 32, 32',
33 and 34 are formed.

That is, if the stored item is small and lightweight, the number of the protrusions may be one, but if the stored item is large or has a complicated shape, a plurality of protrusions may be formed. There is a need.

In addition, the height of each protrusion does not need to be the same, and it is also possible to form protrusions of various heights in consideration of the contact state with the stored items or cushioning properties, etc. good.

The specific formation position and shape of each protrusion 12 differ depending on the shape of the stored article.
In the illustrated embodiment, a small cassette player C with a headphone H, attached speakers S, and a battery B are housed as a set of stored items. And the protruding portion 12,
12', 13, 21, 32, 33 are each stored article H,
The low rib-like protrusions 34 are formed so as to partially abut against the lower surfaces of the stored articles C, S, and along the side or upper and lower surfaces of the articles C, S, and B, respectively.

Of the above-mentioned protrusions, the supporting protrusions 12, 12' and 32, 32' provided at the locations that abut on the three side surfaces of the cassette player C are attached to each of the pieces 10 to 4.
0 is assembled into a frame shape, the opposing protrusions 12,
The height is such that the tip of the protrusion 12' and the tips of the protrusions 32, 32' are just in contact with each other. However, the protrusion 12
The tips of the protrusions 32 and 32 are formed into planar shapes with a relatively large area, and abut each other over the entire tip plane, and the protrusions 12' and 32' are formed with rounded tips, and only the tip portions touch each other. They are starting to touch each other.

The left and right protrusions 32, 32 have their inner surfaces abutting against the outer surface of the cassette player C, and their outer surfaces are formed in an arc shape so as to abut against the inner surface of the C-shaped annular headphone H. ，
32 can be effectively used by bringing the inner and outer surfaces into contact with another article.

A recess 36 for inserting a finger is formed on the inner side of the protrusion 32 on one side, making it easy to take out the stored cassette player C. Since the operation button C is arranged, the recessed part 36 is designed to prevent the protrusion 32 from directly hitting the operation button when an impact is applied, damaging the operation button or accidentally turning on the switch. Formation becomes effective.

Furthermore, an engagement step 15 is formed on the outer side of the protrusion 12 and is higher than the tip plane. The protrusions 12 and 32 are prevented from shifting or moving laterally by abutting and engaging with the outer surface, and the tip of the stepped portion 15 prevents the headphone H from slipping upward (sixth (see figure).

A large number of low ribs 22, 41 are formed protruding from the side pieces 20, 40 in the lateral direction, and these ribs 22, 41 serve to reinforce the packaging material 1 in the vertical direction during assembly and use. Also, 14 and 35 are reinforcement protrusions that do not come into direct contact with the article.

Next, in the main body piece 10 which becomes the upper surface during use,
Cassette player C, left and right speakers S,
A window portion 16 is formed by cutting out a rectangular shape with approximately the same area as the stored items in the storage portion of the battery S and battery B, and the stored items inside can be visually recognized from the outside through this window portion 16. (See Figure 4).

The cushioning packaging material 1 described above has both main pieces 10 and 3.
Although it is also possible to assemble the cassette player C and other storage items in a frame shape while sandwiching them between the two, and then transport and store them as is, it is usually a flat rectangular tube made of cardboard or the like. It is used by inserting it into the eggplant exterior tube 7.

This exterior tube 7 has a window 16 of the main body piece 10.
A rectangular window 70 having substantially the same shape is located at a position corresponding to
is cut out. And the window part 70
A transparent film 71 is pasted to prevent dust and moisture from entering the inside (see Fig. 4).

By using the exterior cylinder 7, the opening on the side of the buffer packaging material 1 is covered, and the main body piece 10 is covered.
Since the cover piece 50 folded over the outer surface of the case can be inserted and fixed into the exterior cylinder 7, the cushioning packaging material 1 does not disassemble without using special fixing means such as gluing the cover piece 50, which is preferable. It is very convenient to use.

In addition, since the opening surface of the exterior cylinder 7 is closed by the side pieces 20 and 40, the appearance is good and suitable (fifth
(See Figures 7 to 7). Further, after the buffer packaging material 1 is inserted into the outer tube 7, the entire outer tube 7 is covered and wrapped with a heat-shrinkable film, so-called shrink film packaging, which provides more reliable protection. In this case, a transparent film 71 is placed on the window 70 of the exterior tube 7.
This is convenient because it can be sealed with shrink film without having to affix it.

It should be noted that the buffer packaging material 1 of this invention can of course be used in combination with the above-mentioned exterior tube 7, as well as with conventional paper boxes, packaging bags, and other exterior materials, and can also be used in combination with other exterior materials such as paper boxes, packaging bags, etc. Alternatively, a plurality of cushioning packaging materials 1 containing articles may be stored in one outer box for use.

Next, as the synthetic resin sheet forming the buffer packaging material 1, foamed or non-foamed sheets of various synthetic resins conventionally used as packaging materials can be used, but particularly preferred ones include butadiene, for example. There is a highly polymerized foamed polystyrene sheet containing ethylene, and a relatively hard foamed sheet a such as a foamed polystyrene sheet and a relatively soft foamed sheet c such as a polyolefin foamed sheet such as a foamed polyethylene sheet or a foamed polypropylene sheet. - A multilayer sheet laminated with vinyl acetate copolymer (EVA) via binder b is suitable as it has both rigidity and flexibility (see Figure 8), and high impact polystyrene, polypropylene, A multilayer sheet in which a non-foamed sheet d made of a synthetic resin such as polyvinyl chloride and the relatively soft foamed sheet c described above are laminated is also preferred (see FIG. 9).

In addition, when using a multilayer sheet as described above, the flexible sheet side shall be used as the side that comes into contact with the stored articles. Furthermore, it is preferable to apply antistatic treatment to each of the synthetic resin sheets, since this is effective in preventing the adhesion of dirt and dust.

The articles to be packaged with the shock-absorbing packaging material 1 of this invention include those that are precise and need to be protected from shock and vibration, such as the small cassette player C mentioned above, and those that have a complex shape, such as the headphone H. It is especially suitable for packaging fragile items or accessories such as speakers S and batteries B, as well as various other electrical products, toys, ceramics, glass products, etc. It can also be applied to packaging.

According to the shock-absorbing packaging material 1 of this invention constructed as described above, the main body piece 10, the side pieces 20, the main body piece 30, and the side pieces 40, which are formed so as to be able to bend each other, are assembled into a frame shape, and each piece is assembled into a frame shape. Items are stored in the internal space, and each piece, especially the two main body pieces 10, 30 facing each other.
Projections 12, 12', 13, 32, 3 formed in
2', 33, 34, etc. to multiple stored items C, H, S,
This means that it can come into contact with the side or top and bottom surfaces of B and provide good cushioning protection.

Among the protrusions, supporting protrusions 12 and 1 are formed at opposing positions of the main body pieces 10 and 30.
2', 32, 32' are formed at a height such that the tips of the protrusions 12, 12' on the main body piece 10 side and the tips of the protrusions 32, 32' on the main body piece 30 side come into contact with each other during assembly. Therefore, a type of support is formed between the two main body pieces 10 and 30, and it is possible to secure a sufficient storage space for stored items and protect them with good cushioning properties.

That is, the main pieces 10, 30 and the side pieces 20, 40
Since these are mutually bendable, there is a possibility that they may be easily bent and deformed even after being assembled into a frame shape. Therefore, the frame state is prevented from being flattened or deformed, and the frame state of the entire cushioning packaging material 1 is maintained, and the individual main body pieces 10,
The supporting protrusions 12, 12', 32,
32', the cushioning packaging material 1 is not deformed even by external forces during transportation, loads during loading, etc., and a good article storage space can be maintained.

In addition, even if the protrusions 12 that come into contact with the article have a relatively simple shape, multiple protrusions are partially abutted on appropriate parts of the article to protect it, so it can be used against articles with complex shapes. It is much easier to manufacture and cheaper than the conventional method in which a storage recess is formed along the entire shape of the article.

Moreover, the above-mentioned conventional method of forming storage recesses has the disadvantage that when trying to store multiple items in one packaging material, the recesses cannot be formed and the cushioning performance is lost unless an appropriate space is provided between each storage recess. However, with the protrusions of this invention, if the protrusions are formed only in areas where there is sufficient space between each article, protection can be achieved with sufficient cushioning properties.
It is an extremely efficient storage device that can compactly store multiple items in a minimum amount of space.

In addition, the buffer packaging material 1 itself is made up of one sheet-like material including main pieces 10, 30, side pieces 20, 40, and cover pieces 50.
Since the packaging material 1 is a combination of the following, it can be easily manufactured using a normal sheet molding method, and the packaging material 1 alone can be easily transported and stored. In particular, the sum of the heights of the opposing supporting protrusions 12, 12' and 32, 32' is the total height of the article storage space, so
Even if the height of each supporting protrusion is lower than the height of the article itself, a sufficient storage space can be obtained, and molding is easy, which is particularly convenient for manufacturing.

In addition, when the frame is bent and assembled, the outer surface portion of the other end of the main body piece or the side surface that comes into contact with the cover piece 50 is provided with an area corresponding to the contact width of the cover piece 50 inward from the other parts. Since the step part 11 for folding and overlapping the cover pieces is formed in a concave manner, the cover pieces 50 do not protrude from the outer surface of the frame-like body when the frame is assembled, and the cover pieces 50 can be stacked very stably for storage and transportation. It is very convenient for use, and even when the frame is inserted into the flat rectangular outer tube 7 made of cardboard or the like, it can be inserted smoothly without getting caught.
It is suitable for use in automated systems that continuously package large quantities of items in a short period of time.

Furthermore, in this invention, a window portion 1 for visual recognition of stored articles is provided in a part of the buffer packaging material 1 such as the main body piece 10.
6, the stored articles can be inspected even after packaging, and are also excellent in display effect at the time of sale.

Therefore, according to this invention, the item to be packaged can be packaged compactly and with good cushioning properties using a single sheet of cushioning packaging material, and the packaging operation is also very simple, and furthermore, manufacturing is easy and inexpensive, etc. It exhibits various excellent practical effects.

[Brief explanation of drawings]

The figures illustrate the embodiment of this invention, and Fig. 1 is a perspective view of the developed state, Fig. 2 is a front view, Fig. 3 is a plan view, and Fig. 4 is an assembled state and a perspective view of the outer cylinder. , Figures 5 to 7 are the front figure - line,
8 and 9 are cross-sectional views showing several examples of synthetic resin sheets as raw materials. 10, 30... main piece, 20, 40... side piece,
11...Step part for folding, 12, 12, 32, 3
2'...Supporting protrusion, 13, 21, 33, 34
...Protrusion, 22, 41...Rib, 15...Engagement step, 16...Window, 50...Cover piece, 60
...Bending groove, 7...Exterior cylinder, 70...Window part, 71
...Transparent film, C, H, S, B...Stored items.

Claims (1)

[Scope of utility model registration request] The entire body is integrally formed of a synthetic resin sheet, and the main body piece, side piece, main body piece, and side piece are sequentially connected to each other in a bendable manner along the longitudinal direction, so that both main body pieces face each other. It can be assembled into a frame shape, and a cover piece is connected to one end in the longitudinal direction so that it can be bent freely, and when the frame is bent and assembled, the main body piece or side part can be attached to the cover piece. The outer surface portion of the other end, which is the abutting point, is formed with a stepped portion for folding the cover pieces, which is recessed inwardly from the other portion by an amount equivalent to the contact width of the cover piece. The main body piece is provided with a protrusion that partially abuts along the outer shape of the stored item and supports the stored item, and the supporting protrusions provided at corresponding locations on both main body pieces are at their tips. What is claimed is: 1. A shock-absorbing packaging material characterized in that the main body pieces are formed so as to come into contact with each other during assembly, and a window portion for viewing stored articles is formed in a part of the main body piece.