JPS6217430Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> This invention relates to a shock-absorbing packaging material, and attempts to provide a compact and easy-to-pack packaging material that has good shock-absorbing properties for objects to be packaged.

<Background and Prior Art> Conventionally, small radios, cassette tape recorders and other electrical appliances and their attached parts such as headphones and microphones have been packaged by wrapping the main item and accessories separately in a foam sheet or packaging them in a paper box, etc., and then storing them inside a tray-shaped cushioning material, and then placing this inside an outer case such as a presentation box, or by using a synthetic resin sheet molded product with storage recesses formed in advance to fit the outer shape of each item, and storing and packaging an item in each recess (Japanese Utility Model Publication No. 48-31997).

However, in the former case, the packaging process is very time-consuming and the cost of packaging materials is high.
Furthermore, in terms of storage efficiency, wasted space was likely to occur. In addition, in the latter case, it is troublesome to manufacture a sheet molded product having complex-shaped recesses, the product does not have sufficient cushioning and protection against external impacts, and when storing multiple products, the space between each recess is troublesome. Since it is necessary to provide a certain interval between the two, there was a problem in terms of storage efficiency.

<Purpose> The purpose of this invention is to obtain a cushioning packaging material that can eliminate the above-mentioned conventional drawbacks and inconveniences.

<Configuration> The configuration of this device to achieve the above purpose is as follows:
The whole is integrally formed from a synthetic resin sheet,
The sheet has an end main piece, a side piece, an intermediate main piece, a side piece, and a cover piece sequentially connected in a bendable manner along the longitudinal direction, and both main pieces face each other when assembled into a frame shape. The cover piece is formed so as to be folded over the outer surface of the end main body piece when assembled into a frame shape, and abuts on both the main body pieces vertically facing each other during assembly. A plurality of protrusions are each formed, and the side surface shape of each protrusion is formed so that it can partially abut against the side of the article shape to be stored, and the sides of both the main body pieces and the protrusion The space formed between the parts is an article storage section, and the surface of the main body piece that comes into contact with the stored articles is formed with a large number of rib protrusions, and the end main body pieces are further provided with a frame-shaped part. When assembling, a step is provided so that the folded side with the cover piece is located on the inner side of the frame than the connection side with the side piece, and the fitting convex formed on the inner side of the frame of the cover piece is attached to the end main piece. It is characterized by being formed so as to fit into a fitting recess formed on the outer surface of the frame.

<Example> Next, an example 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 end main body piece 10, a relatively narrow elongated side piece 20, and a wide end main body piece 10 similar to the above-mentioned end main body piece 10. The main body piece 30, the side pieces 20', and the relatively narrow cover piece 40 similar to the side pieces 20, 20' are successively connected integrally to each other via a V-shaped bending groove 50 at the boundary. has been completed.

Then, each piece is sequentially bent at right angles, and both main pieces 30
The cover pieces 40 are assembled into a square frame shape so that they face each other, and each of the assembled pieces 10, 30, 2
0,20' of the frame-like body, the end main body piece 10
The cushioning packaging material 1 can be assembled by folding it over the outer surface of the cushioning packaging material 1.

Next, in both main body pieces 10 and 30, 11,
Reference numeral 31 designates a plurality of protrusions that bulge toward the upper surface side, and the protrusions 11 of the main body piece 10 and the protrusions 31 of the main body piece 30 are provided approximately symmetrically to each other, so that both the main body pieces 10 and 30 When assembled to face each other vertically, the heights of both protrusions 11 and 31 are adjusted so that they face each other at the same position and the tips of the protrusions 11 and 31 just abut each other. It is set. In the illustrated embodiment, both protrusions 11 and 31 are formed to have exactly the same height to facilitate manufacturing and handling.
As long as the tips of Nos. 1 and 31 can come into contact with each other, they do not necessarily have to be at the same height.

The shape of each of the plurality of protrusions 11, 31 differs depending on the shape of the article to be stored. For example, in the illustrated embodiment, when a small cassette player C with a headphone H is packaged as the article to be stored. A rectangular cassette player C is housed in the center of each of the four protrusions 11 and 31 provided on the four sides, and the shape of the inner surface of the protrusions 11 and 31 is shaped along the four sides of the cassette player C. In addition, the outer surface shape of each of the protrusions 31 of the intermediate main body piece 30 is formed to follow the inner surface shape of the C-shaped annular headphone H. Therefore, the four protrusions 31 The inner space and the outer space are used as storage areas for different items.

Note that the protrusions 11 on the end main piece 10 side are formed in a simple rectangular shape since the outer surface shape does not need to follow the inner surface shape of the headphone H, but some protrusions 11 may be formed on the back surface. The recessed portion 16 is used as a storage portion for batteries B, etc. (see FIG. 4).

Further, among the protruding parts 11 and 31, 11' and 31' are stepped parts formed at the center of the earmuff of the headphone H, and store and protect the cord for the headphone H. Further, 12 and 32 are the protruding parts 1
It is a convex part lower than mag. 1, 31, and headphone H
They are appropriately arranged along the inner and outer shapes of the article, and protect the article together with the protrusions 11 and 31. 1
Reference numerals 3 and 33 denote rib convex strips shaped along the central portion that houses the cassette player C, which abut against the upper and lower surfaces of the cassette player C, which is relatively heavy and requires cushioning protection against shocks, etc., to provide good protection. I'm starting to be able to do it.

However, the shapes of the protrusions 11, 31, etc. can be freely changed depending on the shape of the articles to be stored, and, if necessary, protrusions 12, 32, etc. of a suitable shape may be provided.

Further, a part of the protrusion 31 is provided with a finger insertion recess 34 to facilitate the removal of the cassette player C.

Therefore, although the protrusion 11 of the end main body piece 10 and the protrusion 31 of the intermediate main body piece 30 are not completely symmetrical, if the main parts of the protrusions 11 and 31 can substantially contact each other, The detailed shape can be changed freely.

Next, in the side pieces 20, 20', 21, 21' are a large number of rib convex strips formed substantially over the entire surface along the height direction when assembled, and serve to reinforce the side pieces 20, 20'. Reference numerals 22 and 22' are rectangular protrusions higher than the rib protrusions 21 and 21', which abut and protect the central portion of the outer surface of the headphone H. Note that the side pieces 20, 20' are not only formed at locations adjacent to the main body pieces 10 and 30 along the longitudinal direction;
If similar side pieces are connected to the side end pieces of the main body piece 10 or 30 (end sides in the vertical direction in FIG. 1) so that they can be bent, all six sides of the items to be stored can be covered with cushioning packaging material during assembly. 1 (not shown).

Next, in the end main body piece 10, the center of the main body piece 10, the cover piece 40 A step 14 corresponding to the thickness of the sheet is provided so that the folded side end portion of the cushioning packaging material is located inward when assembled to the frame material (see FIGS. 4 and 5).

Further, at the left and right ends of the cover piece 40, fitting convex portions 41 that protrude toward the end main body piece 10 side when assembled.
At the same time, a fitting recess 15 is formed in a portion of the end main body piece 10 corresponding to the convex portion 41, so that the cover piece 40 and the end main body piece 10 can be engaged with each other. It's getting old.

In the illustrated embodiment, the end main piece 1
As the fitting recess 15 formed at
A recess formed on the back surface of the 2 is utilized. (See Figure 5).

The above-described cushioning packaging material 1 is assembled into a frame shape, and after storing articles such as a cassette player C and a headphone H in a sandwiched state between the opposing main body pieces 10 and 30, the packaging material 1 is formed of, for example, cardboard. It is used by being inserted into an exterior case 5 which has a flat rectangular tube shape. This outer case 5 covers the opening on the side surface of the buffer packaging material 1, and also allows the cover piece 40 folded over the outer surface of the end main piece 10 to be inserted into the outer case 5. , 15, there is no need to use any special fixing means such as adhering the cover piece 40, and there is no need to worry about the shock absorbing packaging material 1 disintegrating, making it convenient to use. In addition, since the opening surface of the exterior case 5 is covered by the side members 20, 20', the appearance is good and suitable (Figs. 4 to 4).
(See Figure 7).

The buffer packaging material 1 of this invention can of course be used in combination with the above-mentioned exterior case 5, as well as with conventional paper boxes, packaging bags, and other exterior materials, and can also be used during factory transportation, etc. It can also be carried out in a usage state in which a plurality of the above-mentioned cushioning packaging materials 1 containing articles are housed in one outer box.

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, for example, those containing butadiene. There is a highly polymerized foamed polystyrene sheet that has a high degree of polymerization, and a relatively hard foamed sheet a such as a foamed polystyrene sheet and a relatively soft foamed sheet c made of a polyolefin foamed sheet such as a foamed polyethylene sheet or a foamed polypropylene sheet. A multilayer sheet laminated through binder b is suitable as it has both rigidity and flexibility (see Fig. 8), and is also suitable for high impact polystyrene, polypropylene,
Non-foamed sheet made of resin such as polyvinyl chloride d
A multilayer sheet in which the above-mentioned relatively soft foamed sheet c is 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 surface 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 articles that are precise and need to be protected from shock and vibration, such as the small cassette player C equipped with the headphone H mentioned above, and articles such as the headphone H. It is especially suitable for packaging accessories that have complex shapes and break easily, and can also be used for packaging various other precision electrical products, toys, ceramics, glass products, etc. be.

<Effects> According to the cushioning packaging material 1 of this invention configured as described above, the main pieces 10 and 30 facing each other
A plurality of protrusions 11 and 3 formed along the shape of the article on the main body pieces 10 and 30 store the article therebetween.
In addition to being able to hold an article with good cushioning properties in the space between the side parts of 1, the following effects can also be achieved.

(a) Even if the individual protrusions 11, 31, etc. have a relatively simple shape, by appropriately arranging a plurality of protrusions 11, 31, etc., it is possible to partially abut appropriate parts of the article. Because it protects items, it can be easily applied to items of multiple shapes, and is much easier to manufacture and cheaper than conventional methods that form storage recesses that follow the entire shape of the item. .

(b) In conventional storage recesses, if multiple items are to be stored, the recesses cannot be formed unless an appropriate space is provided between each storage recess.
In addition, there is a drawback that the cushioning performance against the top surface of the article is also deteriorated, but according to the protruding portion of this invention, it is sufficient to form the protruding portions 11, 31, etc. only in locations where there is space between each article. Since it can be protected with good cushioning properties, a plurality of articles can be stored compactly in a minimum space, resulting in excellent storage efficiency.

(c) Since a large number of rib protrusions 13, 33 are formed on the surfaces of the main body pieces 10, 30 that come into contact with the stored articles, the articles can be elastically clamped and held by the protrusions, thereby reducing the impact on the articles. The ridges can also be gradually softened by the ridges.

(d) The plurality of protrusions 11, 31, etc. are located on the end main piece 1.
0 and the intermediate main body piece 30 are assembled vertically facing each other, the corresponding protrusions 11, 31 on both
etc., so that the tips of the main body piece 1
Maintaining an appropriate spacing between 0 and 30, both main pieces 1
This means that items stored in the space between 0 and 30 degrees can be protected with good cushioning properties. That is, the main body pieces 10, 3
0 and the side pieces 20, 20' are mutually bendable and may be easily bent and deformed even after being assembled into a frame shape, but the protrusions 11, 31, etc. contact each other and become a kind of support. In addition, the protrusions 11 and 3 prevent the center portions of the individual main body pieces 10 and 30 from sagging or being bent or deformed.
The shock-absorbing packaging material 1 can be prevented from coming into contact with one another, and the cushioning packaging material 1 will not be deformed even by external forces during transportation, loads during loading, etc., and can maintain a good article storage space.

(e) Since the step 14 is provided so that the part of the end main piece 10 where the cover piece 40 is folded is located inward from the part where it is connected to the side piece 20, the cushioning packaging material 1 can be shaped like a frame. Cover piece 4 when assembled
0 does not float outward from the end main piece 10 and can be assembled on the same plane, which is convenient when storing the cushioning packaging material 1 in the exterior case 5 or the like.

(f) Since the cover piece 40 and the end main body piece 10 are folded over each other, projections and depressions 41 and 15 for fitting are formed respectively so that they can be engaged with each other.
This is effective in maintaining the assembled shape of the buffer packaging material 1 and preventing it from disassembling during handling, making it convenient for packaging work and subsequent transportation and storage.

(g) The shock-absorbing packaging material 1 itself is made up of a single sheet-like body consisting of main body pieces 10, 30, side pieces 20, 20', and cover piece 40, which are assembled by folding. Therefore, it can be easily manufactured using a normal sheet molding method, and is also easy to transport and store. In particular, the opposing protrusions 11 and 3
The addition of the height of the first grade is the total height of the storage space for the item, so even if the height of the individual protrusions 11, 31, etc. is lower than the height of the item itself, sufficient storage space can be obtained and manufacturing This is particularly advantageous in terms of moldability.

As described above, according to this invention, compared to the conventional method, the item to be packaged can be packed efficiently and compactly with good cushioning properties, and the packaging operation is very simple, and it is easy and inexpensive to manufacture. It can exhibit various excellent practical effects.

[Brief explanation of the drawing]

The figures illustrate the embodiment of this invention, and Fig. 1 is a plan view, Fig. 2 is a front view, Fig. 3 is a right side view, Fig. 4 is a perspective view of the assembled state, and Fig. 5 is a An enlarged partially cutaway front view, Fig. 6 is an enlarged cross-sectional view of the state in use, Fig. 7 is an enlarged cross-sectional view in a direction perpendicular to the previous figure, and Figs. 8 and 9 are several examples of synthetic resin sheets used as raw materials. FIG. 1... Cushioning packaging material, 10... End main piece, 30
...Intermediate main body piece, 11, 31...Protrusion part, 12,
32...Low protrusion, 13,33...Rib protrusion, 1
4...Step, 15...Fitting recess, 20, 20'
...Side piece, 21, 21'...Rib protrusion, 40...
Cover piece, 41... Fitting convex portion, 50... Bending groove, 5... Exterior case, C, H... Storage article.

Claims (1)

[Claims for Utility Model Registration] 1. The entire body is integrally formed of a synthetic resin sheet, and the sheet has end main pieces, side pieces, intermediate main pieces, side pieces, and cover pieces along the longitudinal direction. The two main body pieces are formed so as to face each other when assembled into a frame shape, and the cover piece is formed so as to be folded onto the outer surface of the end main body piece when assembled into a frame shape. A plurality of protrusions are formed on each of the main body pieces, and the protrusions are vertically opposed to each other and come into contact with each other during assembly, and the side surface shape of each protrusion is adapted to the side of the article to be stored. The space formed between the two main body pieces and the side parts of the protrusion is an article storage section, and the surface of the main body piece that comes into contact with the stored article is is formed with a large number of rib convex stripes, and the end main piece is further arranged so that when assembled into a frame shape, the folded side with the cover piece is located on the inner side of the frame than the connecting side with the side piece. A cushioning packaging material characterized in that a step is provided and a fitting convex portion formed on the inner side of the frame of the cover piece is formed to fit into a fitting recess formed on the outer side of the frame of the end main piece. . 2. The cushioning packaging material according to claim 1 of the above-mentioned utility model registration claim, wherein a large number of rib convex stripes are formed on the side pieces. 3 In the main body piece, the inner surface shape of the plurality of protrusions disposed circumferentially is formed so as to be able to abut along the shape of one article, and the outer surface shape of the said protrusion parts is formed into the shape of a separate article. The cushioning packaging material according to claim 1 of the above-mentioned utility model registration, wherein the cushioning packaging material is formed so as to be able to abut along the length thereof.