JPH08217152A - Packaging material and packaging device - Google Patents

Abstract

PURPOSE: To provide a packaging material in which a cushion, made of a synthetic resin foam, and a shape supplement member, such as a corrugated board, are fitted together by a fitting means, their stability in the state of being fitted is satisfactory, free movement and separation of the cushion is prevented, setting into an external box is easy, and sufficient strength for shape supplementation is retained. CONSTITUTION: This packaging material A comprises a cushion 1, made of a synthetic resin foam, and a shape supplement member 2, as for reinforcement or connection, which is fitted into the cushion 1 by a fitting means. Also, a projection 12 sticking out in a fitting reference shape is made on the face of the part 11 where the shape supplement member 2 is fitted in the hole, groove, or recess of the cushion 1, thereby resisting the slide of the supplement member 2 which has been fitted there.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging material and a packaging device which are preferably used for packaging various products.

[0002]

2. Description of the Related Art Conventionally, in packaging electric appliances and other various products, foamed resin moldings such as styrofoam having excellent cushioning properties have been generally used as cushioning packaging materials. In the case where this cushioning material is integrally molded with foamed resin so as to correspond to the bottom or top of the package, the amount of resin used increases and material costs increase, and there are drawbacks that lead to large consumption of petroleum resources. It has the drawbacks of being bulky and difficult to handle, and making disposal such as disposal after use cumbersome.

For this reason, recently, the amount of resin used has been reduced by reducing the use of cushioning materials in foamed resin molded products.
As a packaging material that combines one or more cushioning materials and a reinforcing or connecting prosthetic member such as corrugated cardboard, etc. so as not to reduce strength and workability, and place this in an outer box for use I am going to do it.

In this case, if the cushioning material is adhered and fixed to the complementary member such as corrugated board, productivity is poor and
Since it cannot be easily peeled off, troublesome separation work is required,
This means that it cannot comply with the "Law Concerning Promotion of Utilization of Recycled Resources" that requires that foamed resin molded products such as Styrofoam can be easily separated from other materials such as corrugated cardboard.

Therefore, as this type of packaging material, a combination of a cushioning material and a complementary member such as a corrugated board which are separably coupled by fitting means or the like is required, and various packaging materials that meet these requirements are proposed. (For example, Japanese Patent Publication No. 52-4
No. 8557 and Japanese Utility Model Publication No. 2-34171).

[0006]

However, in the case of a packaging material in which a cushioning material of a foamed resin molded product such as Styrofoam and a complementary member such as corrugated board are combined by a fitting means, the combination and separation work are easy. However, the fitting between the cushioning material and the shape-improving member becomes loose, and the displacement is apt to occur, which makes the setting work in the outer box cumbersome.

That is, the cushioning material of the foamed resin molded product does not have so high dimensional accuracy due to shrinkage after molding, and the thickness of the corrugated board or the like is not so uniform, and the fitting operation is easy. Therefore, it is common to have a play with a complementary member such as a corrugated cardboard because of giving a margin. Therefore, when this packaging material is assembled and stored in the outer box and set, the cushioning material may be separated or misaligned, making it difficult to perform the setting work, and the packaging work is troublesome. It was a requirement.

Further, since the fitting is poor, the stability of the use state is poor, and there is a possibility that the cushioning material may move due to vibration during transportation to cause positional displacement.

The present invention has been made in view of the above, and is provided as a packaging material in which a cushioning material made of a synthetic resin foam such as Styrofoam and a complementary member such as corrugated board are fitted and combined.
The packaging material has good stability in the fitted state, the cushioning material does not move or come off without permission, it is easy to set in the outer box, and it has sufficient shape retention strength. Provided is a packaging device using a material.

[0010]

A packaging material of the present invention for solving the above-mentioned problems is a cushioning material made of a synthetic resin foam, and a reinforcing material or a connecting material which is combined with the cushioning material by a fitting means. A fitting member for fitting, wherein the fitting portion of the cushioning member with respect to the fitting member has a gap therebetween, and a convex portion projecting with respect to the fitting reference shape is provided. It is characterized in that it is formed so as to give a sliding contact resistance to. The fitting portion may be a hole, a groove, a recess, or the like into which the prosthetic member is fitted, or a peripheral portion of a part of the cushioning material into which the tubular prosthetic member is fitted.

The fitting surface of the fitting portion is deformed so as to have an uneven shape with respect to the fitting reference shape, and the convex portion provides a sliding contact resistance to the fitting member to be fitted. It may be formed.

Further, the packaging apparatus of the present invention is characterized in that it is set in the outer box in a state where the cushioning material and the complementary member in the packaging material are combined by fitting means.

[0013]

The packaging material of the present invention is used by combining a cushioning material made of synthetic resin foam with a reinforcing or connecting auxiliary member made of corrugated cardboard or the like. At this time, the fitting portion of the cushioning material with the complementary member has a convex portion projecting with respect to the fitting standard shape, but the elasticity peculiar to the foam makes the convex portion elastic while pressing and deforming the convex portion. The complementary member can be fitted to the cushioning material.

Moreover, in this fitted state, since the convex portion makes strong local or partial pressure contact with the complementary member by the elastic force of the material, the dimensional accuracy is not so high. However, the fitting does not become loose, the sliding contact resistance is given by the pressure contact part by this convex part and the anti-slip function is achieved, the mutual movement of the cushioning material and the prosthetic member can be regulated, and it can be easily separated or There is no displacement.

Further, even when the fitting surface of the fitting portion is deformed so as to have an uneven shape with respect to the fitting reference shape, the convex portion is pressed and deformed. The shape can be elastically fitted so as to approach the fitting reference shape, and in the fitted state, sliding contact resistance can be provided at the pressure contact portion of the convex portion.

Further, in the packaging apparatus of the third aspect of the present invention, the packaging material is set in the outer box in a state where the cushioning material and the complementary member are fitted and combined as described above. The shape and stability of the packaging material are good, and the cushioning material is not displaced.

[0017]

Embodiments of the present invention will now be described with reference to the drawings.

In the embodiments of FIGS. 1 to 4, (1) is a cushioning material made of a synthetic resin foam such as styrofoam, which is not limited to the substantially L shape as shown in the drawing, but may be a corner portion or a side portion. Is formed into an arbitrary shape according to the product to be packaged and the packaging form. Reference numeral (2) is a reinforcing member mainly made of a plate-like body such as corrugated board for reinforcement and connection, and the auxiliary member (2) and the cushioning material (1) are combined by fitting means, A packaging material (A) for the bottom and the like is configured. In the case of the figure,
Fitting portions (11) (11) formed by substantially L-shaped through holes, grooves, recesses or the like corresponding to the complementary member (2) having a substantially L-shaped cross section are provided on the opposing surfaces of the pair of cushioning materials (1) (1). Provided with this fitting part (11)
Both ends of the complementary member (2) are fitted into the (11) to be combined and configured as shown in FIG.

The fitting portion (11) of the cushioning material (1) with the shaping member (2) generally corresponds to the sectional shape of the shaping member (2) as shown in an enlarged view in FIG. It is formed to be slightly wider than the fitting reference shape (chain line a in the figure), that is, to have a slight gap (play) between the fitting member (2) and the fitting portion (11). The inner peripheral surface is provided with one or a plurality of convex portions (12) projecting with respect to the fitting reference shape (a), and the complementary member (2) press-deforms the convex portions (11). While it is formed so that it can be elastically fitted,
As a result, sliding contact resistance is given to the complementary member (2). Therefore, even if the dimensional accuracy is rough or the frontage is wide to facilitate the start of fitting, the dimensional error and the like can be absorbed by the convex portion (12). The fitting will not be excessively loosened, and the predetermined fitting state can be maintained without the risk of disconnection. FIG. 4 shows a sectional view of the fitted state.

The convex portion (12) of the fitting surface is the fitting portion (11).
It can be provided only on one surface of the inner peripheral surface of the fitting member corresponding to one side surface of the complementary member (2) having a substantially L-shaped cross section. It is preferable to provide one or a plurality of convex portions (12) on the surface to be fitted because the fitted complementary member (2) can be elastically sandwiched between the convex portions (12).

As the convex portion (12), the convex portion (12) shown in FIG.
As shown in FIG. 5A, in addition to the projections having a square or semicircular cross section that are projected on the fitting surface at appropriate intervals, the fitting surface is formed in a corrugated cross section as shown in FIG. It is also possible to implement by forming the convex portion (12). Further, as shown in FIG. 5C, the fitting surface of the fitting portion (11) of the cushioning material (1) is deformed so as to form an uneven shape with respect to the fitting reference shape (a), and the convex portion thereof is formed. It can also be implemented by forming so as to give sliding contact resistance to the fitting member (2) fitted by (12).

As for the structure of the fitting part (11), the cross-sectional area of the fitting part (11) is made larger on the inlet side and is made smaller on the inner side in order, or the convex part (12) is made smaller on the inlet side and is made larger on the inner side. The fitting member (2) can be easily inserted and the fitting strength can be increased.

In any of these cases, it is preferable that the protrusions (12) are formed by continuous protrusions in the die-cutting direction during molding because die-cutting is easy.

The shape-imparting member (2) has a substantially L-shaped cross section or a simple plate shape as described above, and also has a substantially concave cross section as shown in FIG. 6, a U-shape, a rectangular or circular tubular shape. However, the cushioning material (1) to be combined with this can be implemented in any shape, such as a substantially M-shaped section or a Z-shaped section (all are not shown).
Similar to the above, the fitting portion (11) corresponding to each shape is provided, and the fitting surface is provided with the convex portion projecting from the fitting reference shape (for example, FIG. 6). In the case of a tubular shaped complementary member, it is also possible to fit this on the outer circumference of the cushioning material (1) or a part thereof and combine it, and in this case, on the outer peripheral surface of the fitting part, the same convex as above. Sections are provided.

As a fitting form of the cushioning material (1) and the complementary member (2), as shown in FIG. 7, one cushioning material (1) is used.
Two complementary members (2) can be fitted and connected to each other. For example, the cushioning material (1) at the corners may be connected by the complementary members (2) fitted in the respective right angles to form a frame-shaped packaging material.

FIG. 8 shows a case where the fitting portion (11) of the cushioning material (1) is formed by a through hole so that the prosthetic member (2) can be penetrated so that it can be fitted at an arbitrary position. There is. In this case, the cushioning material (1) can be stopped at an arbitrary position depending on the product. Further, it is possible to print the fitting position on the complementary member.

In the use of the packaging material (A) constructed as described above, when the fitting member (2) is fitted to the cushioning material (1) and assembled, the convex portion (12) on the fitting surface is used. It suffices to elastically fit the complementary member (2) to the cushioning material (1) while pressing and deforming, whereby the convex portion (12) is strongly pressed against the complementary member (2). As a result, sliding contact resistance is given, a stable fitted state can be maintained, and the cushioning material (1) and the prosthetic member (2) are not easily separated or displaced.

Therefore, the packaging material (A) assembled as described above and assembled in an arbitrary shape such as a frame shape is accommodated and set in the outer box (C) such as a corrugated cardboard box to facilitate the packaging apparatus (B). Can be configured to. Moreover, the packaging device (B) configured in this manner has good shape retention and stability of the packaging material (A) in the outer box (C), prevents the cushioning material from being displaced, and protects the packaged product. It can be done well.

In the above, as the synthetic resin foam which is a constituent material of the cushioning material (1), polystyrene-based resins such as polystyrene and a copolymer containing styrene as a main component, and co-polymer containing polyethylene, polypropylene and an olefin as a main component A foamed molded product of a polyolefin resin such as a coalesced product, a polyvinyl chloride resin or other synthetic resin, or a cut product thereof is used.

Further, as a reinforcing member and a connecting member (2) for connection, in addition to cardboard and other thick paper, particle board,
Insulation boards, plate-shaped materials such as various plastics, bent products, and molded products can also be used.

[0031]

As described above, according to the present invention, as a packaging material to be combined by fitting a cushioning material made of a synthetic resin foam such as Styrofoam and a complementary member such as corrugated board,
The combination operation is easy, and even if it is made roughly in terms of dimensions, the fitting does not become loose,
Since the fitting state can be stably maintained due to the anti-slip action by the convex portion, and the cushioning material does not move or come off without permission, it is easy to set in the outer box, and the assembly configuration and packaging as a packaging device The work can be simplified.

Furthermore, since the fitting does not become loose, the shape retention and stability in the use state are good, and there is no possibility that the cushioning material will move due to vibration during transportation to cause positional displacement, thus protecting the packaged product. You can do it well.

Further, since the cushioning material and the complementary member are combined only by the fitting means without using an adhesive, the separating work for reuse after use is easy, and the recycled resources of the foamed resin are utilized. It will be possible to comply with the law.

[Brief description of drawings]

FIG. 1 is a perspective view in which a cushioning material and a complementary member according to an embodiment of the present invention are separated.

FIG. 2 is a perspective view of the above combination state.

FIG. 3 is an enlarged front view showing a fitting portion of the above cushioning material.

FIG. 4 is a cross-sectional view showing a state in which the above-mentioned complementary member is fitted.

5 (a), (b) and (c) are front views showing other examples of the convex portion of the fitting surface.

FIG. 6 is an exploded perspective view showing another example of a fitting form of a cushioning material and a complementary member.

FIG. 7 is a perspective view showing still another example of a fitting form of a cushioning material and a complementary member.

FIG. 8 is a perspective view showing still another embodiment.

[Explanation of symbols]

 (1) Cushioning material (11) Fitting part (12) Convex part (2) Auxiliary member (a) Fitting standard shape (A) Packaging material (B) Packaging device (C) Exterior case

Claims (3)

[Claims] 1. A packaging material comprising a cushioning material made of a synthetic resin foam and a reinforcing or connecting profile-forming member combined with the cushioning material by a fitting means. The fitting portion with the member has a gap between each other and is provided with a convex portion projecting with respect to the fitting reference shape, and is formed so as to give a sliding contact resistance to the fitting member to be fitted. Packaging material 2. The fitting surface of the fitting portion is deformed so as to form an uneven shape with respect to the fitting reference shape, and the convex portion provides sliding contact resistance to the fitting member to be fitted. The packaging material according to claim 1, which is formed. 3. A packaging apparatus, wherein the packaging material according to claim 1 or 2 is set in an outer box in a state where a cushioning material and a complementary member are combined by fitting means.