JP3203838B2 - Product packaging method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of packing products for aligning and packing products such as electronic parts having a cylindrical shape.

[0002]

2. Description of the Related Art Conventionally, when packaging this kind of product, the packaging is performed by the method shown in FIGS.

That is, as shown in FIG. 5, a plurality of vertical partition plates 1 and a plurality of horizontal partition plates 2 are crossed at right angles to form a well, and these are assembled in a cardboard packaging box shown in FIG. 3, and in this state, a cylindrical product 5 such as a large aluminum electrolytic capacitor is placed in a space 4 formed by the plurality of vertical partition plates 1 and the plurality of horizontal partition plates 2. After storing, the upper flap 6 of the cardboard packaging box 3 is closed and packaging is performed.

[0004]

However, the above-mentioned conventional packaging method has the following problems. That is, since the vertical partition plate 1 and the horizontal partition plate 2 shown in FIG. 4 are made of corrugated cardboard, their strength is weak, and they are easily deformed when an external impact such as a drop is applied. In the case of a relatively heavy cylindrical product 5 such as an electrolytic capacitor, the vertical partition plate 1 and the horizontal partition plate 2 cannot withstand the weight, and as a result, the packaging made of corrugated cardboard due to an external impact such as dropping. There is a problem that the inside of the product 5 is easily damaged with the deformation of the box 3.

The present invention has been made in order to solve such a problem. For example, even when a relatively heavy product such as a cylindrical electronic component having a relatively large shape is packaged, the weight of the product can be reduced. It is an object of the present invention to provide a method of packaging a product which can withstand sufficiently and prevent the product from being moved and damaged even in the event of an impact such as a drop when handling a load. .

[0006]

In order to achieve the above object, the present invention provides a method for packaging a product, comprising the steps of: forming a plurality of semi-cylindrical concave portions and a plurality of flat convex portions substantially matching the outer shape of a cylindrical product; comprising a resin molding tray for packaging provided alternately, and the corrugated board of packaging boxes for containing the resin molding tray, or
One, a flat protrusion located at one end of the resin molding tray
Is almost the flat convex part located in the center of the resin molding tray.
Double the area and located at the other end of the resin molding tray
The flat convex part is located at the center of the resin molding tray.
It is configured to have an area that is less than half the area of the flat projection.
The resin-molded tray has a cylindrical shape
Products in a horizontal position and stored in this horizontal position.
Staggered cylindrical product on top of the cylindrical product
It is designed to be stacked and accommodated.

[0007]

According to the above-mentioned packaging method, a resin molding tray for packaging is used which is provided with a plurality of semi-cylindrical concave portions and a plurality of flat convex portions which are alternately provided substantially in conformity with the outer shape of a cylindrical product. By adopting this resin molded tray, for example, even when packaging a product such as a large aluminum electrolytic capacitor having a relatively heavy shape and a large cylindrical shape, it can withstand the weight sufficiently, and the cylindrical shape can be used. Since the products are placed sideways in semi-cylindrical recesses provided on the resin molding tray approximately in accordance with the outer shape of the cylindrical products, the cylindrical products are held by the semi-cylindrical recesses. As a result, even if a shock is applied from the outside due to a fall or the like when handling the cargo, the product may move and be damaged, or may be damaged by the contact of adjacent products. It is possible to prevent the or.

[0008]

An embodiment of the present invention will be described below with reference to the accompanying drawings. In FIGS. 1 and 2, reference numeral 11 denotes a resin molding tray for packaging made of polypropylene. As shown in FIG. 3, the resin molding tray 11 has a plurality of semi-cylindrical shapes substantially matching the outer shape of a cylindrical product. The concave portions 12 and the plurality of flat convex portions 13 are alternately provided to form a waveform. The plurality of flat convex portions 13 are provided with a plurality of grooves 14, respectively. Further, as shown in FIG. 4A, the plurality of flat projections 13 are
The area of the flat projection 13a located at one end of the resin molding tray 11 is configured to be approximately twice as large as the area of the flat projection 13b located at the center of the resin molding tray 11, and Flat protrusion 13 located at the other end of
The area of “c” is configured to be equal to or less than half the area of the flat protrusion 13 b located at the center of the resin molding tray 11.

As shown in FIG. 4C, a plurality of grooves 12a are formed along the circumference of the semi-cylindrical recess 12 provided in the resin molding tray 11, and these grooves 12a are formed. The convex portion 12b between them has a flat shape. With such a configuration, for example, when a cylindrical product 15 such as a large aluminum electrolytic capacitor is placed horizontally and accommodated in the semi-cylindrical recess 12, the frictional force can be increased. Of the product 15 is difficult to slip.

In the above configuration, when packaging a cylindrical product 15 such as a large-sized aluminum electrolytic capacitor, FIG.
As shown in FIG. 2, first, two resin molding trays 11 are put in a cardboard packaging box 16, and a cardboard partitioning plate 17 is put between the two resin molding trays 11. In this state, a cylindrical product 15 such as a large aluminum electrolytic capacitor is placed horizontally in a plurality of semi-cylindrical recesses 12 provided in two resin molding trays 11. When two or more products 15 are stacked and packed, an elastic mat 18 serving as a cushioning material is laid on the first product 15 and the second product 15 is placed thereon.

In this case, in the first stage, the position of the product 15 is fixed by the resin molding tray 11. As a result, the product 15 on the first stage and the product 15 on the second stage
Are staggered and stored. Thereafter, a pad 19 made of corrugated cardboard is placed on the product 15 on the second stage, and the upper lid 20 of the packaging box 16 made of corrugated cardboard is closed and packed.

In the packaging in the above embodiment, two resin molding trays 11 are put in a packaging box 16 made of cardboard, and then into a plurality of semi-cylindrical recesses 12 provided in the two resin molding trays 11. Although a cylindrical product 15 such as a large aluminum electrolytic capacitor is placed horizontally and accommodated therein, a large aluminum electrolytic capacitor is previously placed in a plurality of semi-cylindrical recesses 12 provided in two resin molding trays 11. Such a cylindrical product 15 may be placed horizontally and stored, and the two resin molded trays 11 in this stored state may be placed in a packaging box 16 made of cardboard.

According to the embodiment of the present invention described above, a plurality of semi-cylindrical concave portions 12 and a plurality of flat convex portions 13 substantially matching the outer shape of the cylindrical product 15 are provided alternately for packaging. Since the resin molded tray 11 is used, even if a relatively heavy and relatively large cylindrical product 15 such as a large aluminum electrolytic capacitor is stored, the weight of the resin molded tray 11 is reduced. The product 15 that can withstand sufficiently and has a cylindrical shape is
The cylindrical product 15 is held horizontally by the semi-cylindrical recess 12 so as to be accommodated in the semi-cylindrical recess 12 provided substantially in accordance with the outer shape of the cylindrical product 15. As a result, even when an external impact is applied due to a fall or the like during handling of the cargo, the product may move and be damaged, or the adjacent products 15 may be damaged by hitting each other. Can be prevented. In addition, since a partition board 17 made of cardboard is inserted between the two resin molding trays 11 stored in a packaging box 16 made of cardboard, the partition board 17 allows
It is possible to prevent the cylindrical products 15 housed horizontally in the semi-cylindrical recesses 12 of the two resin molding trays 11 from abutting each other and being damaged.

A plurality of grooves 12a are formed along the circumference of the plurality of semi-cylindrical recesses 12 provided in the resin molding tray 11, and the protrusions 1 between these grooves 12a are formed.
Since 2b is configured in a flat shape, the frictional force when the cylindrical product 15 is placed horizontally and accommodated in the semi-cylindrical concave portion 12 can be increased. Since it is difficult to slip, it is possible to prevent the product 15 from moving due to displacement.

Further, the flat projection 13a located at one end of the resin molding tray 11 has an area approximately twice as large as the flat projection 13b located at the center of the resin molding tray 11,
Further, the flat protrusion 13c located at the other end of the resin molding tray 11 is configured to have an area equal to or less than half the area of the flat protrusion 13b located at the center of the resin molding tray 11. Therefore, when two or more cylindrical products 15 are stacked, the product 15 located on one end side of the resin molding tray 11 in the second stage product 15 is replaced with a flat convex portion located at the center of the resin molding tray 11. 13b can be located above the flat convex portion 13a having an area approximately twice as large as that of the convex portion 13b.
Thus, the first-stage products 15 and the second-stage products 15 can be staggered and accommodated, so that it is possible to reliably prevent hits between the second-stage and subsequent products 15.

(Table 1) shows a case where 20 large aluminum electrolytic capacitors are accommodated in a packaging box using a conventional packaging member, and a case where 20 large aluminum electrolytic capacitors are used in a packaging box using a resin molded tray in one embodiment of the present invention. FIG. 3 shows data of the results of a drop test for each of the large aluminum electrolytic capacitors.

[0017]

[Table 1]

As is clear from Table 1, in the case of a packaging box using a conventional packaging member, the metal case of several large aluminum electrolytic capacitors out of 20 large aluminum electrolytic capacitors is damaged. However, in the case of a packaging box using a resin molded tray in one embodiment of the present invention, in any of the drop tests, the metal case of the large aluminum electrolytic capacitor does not cause scratches, It has very good impact resistance.

In the above-mentioned embodiment, a large aluminum electrolytic capacitor or the like is used as an example of the cylindrical product 15; however, the present invention is not limited to this. It can also be applied to the packaging of cylindrical products.

[0020]

As described above, according to the product packaging method of the present invention, a packaging having a plurality of semi-cylindrical concave portions and a plurality of flat convex portions alternately provided to substantially match the outer shape of a cylindrical product. This resin molding tray is used, so even if a product such as a large aluminum electrolytic capacitor with a relatively heavy shape and a large cylindrical shape is wrapped, the weight of the Can withstand enough,
In addition, since cylindrical products are placed sideways in semi-cylindrical recesses that are provided on the resin molding tray almost in accordance with the outer shape of the cylindrical products, cylindrical products are semi-cylindrical. As a result, even if a shock is applied from the outside due to a drop or the like during handling of the cargo, the product may move and be damaged, or the adjacent products may be hit. It is possible to prevent breakage.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a method of packaging a product according to an embodiment of the present invention.

FIG. 2 is a cutaway perspective view showing a packaging method of the product.

FIG. 3 is a perspective view of a resin molding tray used for a packaging method of the product.

FIG. 4A is a plan view of the resin molding tray, FIG. 4B is a front view of the resin molding tray, and FIG. 4C is a side view of the resin molding tray.

FIG. 5 is a perspective view showing a combination state of a conventional partition plate.

FIG. 6 is a schematic diagram showing a conventional packaging method using a partition plate.

[Explanation of symbols]

 Reference Signs List 11 resin molding tray 12 semi-cylindrical concave part 12a groove 12b convex part between grooves 13 flat convex part 13a flat convex part 13b located at one end flat convex part 13c located at central part 13c located at other end Flat convex part 15 Cylindrical product 16 Packaging box

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B65D 5/00-5/76 B65D 25 / 10,77 / 26,85 / 38

Claims (2)

(57) [Claims] 1. A packaging resin molding tray provided with a plurality of semi-cylindrical concave portions and a plurality of flat convex portions which are substantially matched to the outer shape of a cylindrical product, and a cardboard for accommodating the resin molding tray. And a resin box.
The flat protrusion at one end of the tray is
Has almost twice the area of the flat protrusion located in the center of the
And a flat protrusion located at the other end of the resin molding tray
Is two minutes of the flat convex part located at the center of the resin molding tray
The resin molding is configured so as to have an area of 1 or less.
Put the cylindrical product horizontally in the semi-cylindrical recess of the tray
The cylindrical shape accommodated horizontally
A product packaging method comprising stacking cylindrical products in a staggered manner on top of the product and storing the products. 2. The product according to claim 1, wherein a plurality of grooves are formed along the circumference of the semi-cylindrical concave portion of the resin molding tray, and the convex portion between the grooves is formed in a flat shape. Packaging method.