JPS5841176Y2 - Packing material - Google Patents

Description

[Detailed description of the invention] This invention is used for packaging electrical appliances such as televisions, refrigerators, and other products, and includes a side frame for packaging made of cardboard consisting only of side walls, and a side frame for packaging. Regarding a simple box-shaped packaging material that combines a bottom cushioning material that fills the bottom opening of the frame and a top cushioning material that fills the top opening of the side frame, the stability of the top cushioning material is increased, and the top cushioning material and the side wall It is designed to prevent rainwater etc. from entering through the gaps.

Cardboard boxes used for packaging electrical products and other products (hereinafter referred to as packaged items) have four side walls as well as flaps that make up the bottom and lid, which are connected to the top and bottom of each side wall. Not only is the folding process troublesome and the assembly and packaging process time-consuming, but the flaps also make it very difficult to store the packaged items.

Furthermore, when folded, the folded structure has flaps on the upper and lower sides of the side walls, which results in a relatively large folded state, making it difficult to handle and inconvenient for transportation and storage.

Furthermore, the cost of cardboard boxes is increasing due to the rise in the price of paper materials.

Therefore, in order to eliminate the above-mentioned drawbacks, the inventor of the present application has proposed that a bottom cushioning material and a top cushioning material corresponding to the entire bottom or the entire top are used as cushioning materials when packaging in a cardboard box or the like. With this in mind, we devised the idea of omitting the top and bottom flaps of cardboard boxes, etc., and using the bottom cushioning material and top cushioning material as the bottom and lid of the packaging material. If the upper cushioning material that fills the upper opening is simply inserted into the side wall and supported by the packaged item, there is a risk that the upper cushioning material will become unstable and fall down or tilt. There is also a risk that rainwater may enter through the gap between the upper cushioning material and the side wall.

The present invention was devised in order to eliminate the above-mentioned drawbacks of the packaging material in which the upper cushioning material also serves as a lid, and to obtain a state of filling with an extremely suitable upper cushioning material that has excellent stability and waterproof effects.

Next, embodiments of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a side frame for packaging consisting of only four side walls 11 and 14 of the box body, and is made of cardboard or other material.

2 is a bottom cushioning material capable of filling the bottom opening of the side frame 1, and 3 is an upper cushioning material capable of filling the top opening, and both are made of polystyrene foam, ethylene-styrene copolymer foam, polypropylene foam, rigid polyurethane foam, etc. The bottom cushioning material 2 is hung on a stopper 4 protruding from the inner periphery near the flat end of the side frame 1, that is, the side wall 1, and serves as the bottom of the packaging material. The upper cushioning material 3 is configured so that it can be used also as a lid for the packaging material.

The upper cushioning material 3 is provided with a collar 5 at an upper position on its outer periphery, which can be placed on the upper end of each of the side walls 1□-14.

Further, as a fixing means for the upper cushioning material 3, a retaining piece 6 which has stiffness and is bendable is provided protrudingly at a required location on the upper end of the side frame 1, and the retaining piece 6 is provided at a required location on the upper end of the side frame 1. An engagement hole 7 is formed at a position corresponding to the engagement piece 6.
The upper cushioning material 3 can be fixed by inserting it into the engagement hole 7.

The above-mentioned engagement hole 7 is desirably formed in an oblique shape as shown in FIG. 6 so that the engagement piece 6 cannot be easily removed.

The retaining piece 6 can be formed integrally with the side frame 1 and extended as shown in Figs. 1 to 4 (particularly when the side frame is made of cardboard), or it may be made of cardboard, etc. as shown in Fig. 5. In some cases, a separately formed piece of material is attached to a predetermined position on the side frame 1 by gluing or other means. The insertion operation into the engagement hole 7 becomes easier.

When the engaging piece 6 is extended from the side frame 1, the collar 5 has a notch 8 at a point corresponding to the retaining piece 6, as shown in FIGS. 1 to 4. .

9 is a notch through which the upper cushioning material 3 is taken in and out.

The present invention is constructed as described above, and the bottom cushioning material 2 is put into the packaging side frame 1 and pushed down, and is latched by the stopper 4 provided on the inner periphery of the lower end of the side frame 1. It is supported in a filled state.

Thereafter, the object to be packaged a is stored in the side frame 1, and the upper cushioning material 3 is fitted into the upper opening of the side frame 1 to cover this part with the upper cushioning material 3, and then the upper end of the side frame 1 is Packing is completed when the upper cushioning material 3 is fixed by inserting the engagement pieces 6 protruding at required locations into the retaining holes 7 formed around the upper surface of the upper cushioning material 3.

However, in the present invention, a flange is provided on the outer periphery of the upper cushioning material that can be placed on the upper end of the side frame. Because it is supported by the side frame, even if the top of the packaged item is tilted to one side or has an unstable shape, the upper cushioning material will not fall into the side frame or tilt. In addition, the upper cushioning material can be held and fixed by inserting and engaging the retaining piece protruding from the upper end of the side frame into the retaining hole on the top surface of the upper cushioning material, so that the It is possible to prevent the cushioning material from floating up or coming off, and the upper cushioning material, which also serves as a lid, can be easily held in an extremely stable packed state without having to bind it with a tightening band or the like.

Moreover, since the brim rests on the side wall, the joint between the side wall and the upper cushioning material is located on the side, and since the joint surface is approximately horizontal, the retaining piece 6 has an effect of preventing lifting. In addition, even if rainwater or the like comes down from the top surface, it will not infiltrate into the interior, resulting in extremely good waterproof properties and can reliably protect the packaged items inside.

Therefore, in the case of the present invention, there is no inconvenience due to the upper cushioning material also serving as a lid, and domestic electrical products such as electrical products made of a combination of a packaging side frame, a bottom cushioning material that also serves as a bottom, and an upper cushioning material that also serves as a lid. is extremely suitable as a simple packaging material used for shipping, short-distance transportation, etc.

Furthermore, since the side frame does not have anything equivalent to the flaps of a cardboard box, it can be folded compactly, making it convenient to handle and saving material costs.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is an exploded perspective view, Fig. 2 is a cross-sectional view of the packaged state, Fig. 3 is an enlarged perspective view of a part of the same state, and Fig. 4 is a front view. FIG. 5 is a partially enlarged perspective view showing another embodiment, and FIG. 6 is a sectional view taken along the previous line IV-IV. 1... Side frame for packaging, 2... Bottom cushioning material, 3... Top cushioning material, 5... Tsuba, a.
・・・・・・Item to be packaged.

Claims (1)

[Claims for Utility Model Registration] ■ A side frame for packaging made of cardboard consisting of only four side walls, a bottom cushioning material that fills the bottom opening of the side frame, and a top opening of the side frame. In a box-shaped packaging material that is combined with an upper cushioning material, a collar that can be placed on the upper end of the side frame is formed on the outer periphery of the upper cushioning material, and the upper end of the side frame has stiffness at the required places and is also flexible. In addition to providing a protruding piece, a retaining hole is provided at a position corresponding to the retaining piece in the upper surface periphery of the upper cushioning material, and the upper cushioning material can be fixed by inserting the retaining piece into the retaining hole. A packaging material characterized by: 2. The packaging material according to claim 1, wherein the retaining piece is integrally formed with the side frame and is cut out at a location corresponding to the joint piece of the collar. 3. The packaging material according to claim 1 or 2 of the utility model registration claim, in which the retaining hole is formed in an oblique shape with the lower end facing outward.