JPS5829003Y2 - packaging box - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rectangular or cubic packaging box that is constructed so that it can be folded into a flat plate with its four side plates connected.

Conventionally, this type of packaging box uses foamed polystyrene, foamed polyethylene, etc. as the cushioning material, and either it is placed inside the package and then the packaged item is placed in it, or it is attached around the packaged item in advance. There was a person like that in the packaging box.

For this reason, packaging work was time-consuming and required a large space to store the cushioning material.

This idea was made in order to solve the above-mentioned drawbacks, and at the same time as the box is formed, the cushioning material, which is attached to the inside of the box, is changed from a flat plate to a three-dimensional one, which has a cushioning effect. It provides a box.

An embodiment of this invention will be described below with reference to the drawings.

In Figure 1, 1 is the packaging box body made of cardboard, 2, 3, 4.5 are side plates, and 6, 7, 8.9 are side plates 2, 3.
, 4.5, 10, 11.12.13 is the side plate 2
, 3, 4.5 and the upper plate formed integrally with 14, 15, 16
．． 17 is a lower plate formed integrally with side plates 2, 3, 4.5;
0, 21, 22, and 23 are plate-shaped internal cushioning materials made of cardboard, and are fixed to the lower inner walls of the connection parts 6, 7, and 8.9, respectively, with support step portions to be described later facing inward of the packaging box body 1. are doing.

The structure of one of these cushioning materials 23 will be explained with reference to FIG. 2. 30 is a horizontal cutting line, 31, 32, 33, 3
4, 35° 36 is a vertical fold line, and 37 and 38 are attachment margins that are fixed to the wall surface of the side plate 4°5.

Reference numeral 40 denotes a support stepped portion formed by the cut end of the cut line 30.

Referring again to FIG. 1, the other cushioning materials 20, 21.22 have the same structure as the cushioning material 23 and are fixed to the lower inner walls of the connecting portions 6, 7.9, respectively.

Again in FIG. 1, 50 is the article to be packaged.

Next, the effect of this packaging box will be explained with reference to FIGS. 3 and 4. The same reference numerals as in FIGS. 1 and 2 indicate the same parts, and the arrow A in FIG. 3 shows the effect of this packaging box before assembly.

When a force is applied in the direction of B, the side plates 2, 3, 4.5 fold from a diamond-shaped cross section to a flat plate, and the cushioning materials 20, 21, 22, 23 also change to a flat plate, and as a result, the packaging The entire box becomes thinner and does not require a large amount of storage space.

Next, when force is applied in the directions of arrows C and D, the side plates 2, 3, and 4.5 become rectangular in cross-section as shown in Figure 4, and the cushioning materials 20, 21, 22, and 23 also become three-dimensional accordingly. They are formed with support steps 40 directed towards the inside of the packaging box.

Then, in the packaged state of the packaged article 50, the cushioning material 20°21.
The support steps 22 and 23 each fixedly support the bottom edge of the packaged article 50, and for example, when receiving an external impact force from the lateral direction, they absorb the impact by elastically deforming, and also absorb the impact from below. When subjected to impact force, it buckles and deforms, absorbing the impact and acting as a cushioning material.

In this embodiment, the overall shape of the packaging box is a rectangular parallelepiped, but the shape is not limited to this, and the packaging box can be similarly configured to have a cubic shape.

Also, the horizontal cutting line 3 of the cushioning material 20, 21, 22, 23
By forming a plurality of 0's, it is possible to form the necessary number of support steps.

As described above, according to this invention, the plate-shaped internal cushioning material, which is fixed in advance to the lower inner wall at the joint between the side plates, becomes the flat-plate folded state of the main body at the same time, and the main body becomes three-dimensional. In line with this, the structure is constructed so that it is three-dimensional at the same time to form a support step for the packaged item, making it possible to save labor in packaging work.Moreover, it eliminates the need for cushioning materials such as styrofoam, which was required in the past, and reduces the number of parts. It is possible to reduce the storage space for these items.

[Brief explanation of the drawing]

The figures all show examples of this invention; Fig. 1 is a partially cutaway perspective view of the main parts, Fig. 2 is an exploded perspective view of the main parts, and Figs. 3 and 4. The figure is a horizontal cross-sectional view showing the function. In addition, the same reference numerals in the figures indicate the same parts, 1 is the packaging box body, 2, 3, 4.5 are side plates, 6, 7, 8.9 are connection parts, 2
0,21°22.23 is a plate-shaped internal cushioning material, 30 is a partition line, 31,32,33°34.35.36 is a folding line, 40
50 is a support step, and 50 is an article to be packaged.

Claims (1)

[Scope of utility model registration request] In a rectangular parallelepiped or cubic packaging box configured so that it can be folded into a flat plate with the four side plates connected, at least one horizontal cut line is formed and a predetermined number of vertical folds are formed. The cushioning material is provided with four plate-shaped internal cushioning materials each formed with a line, and these cushioning materials simultaneously become flat in the above-mentioned flat state, and from this state become three-dimensional as they are formed into the above-mentioned rectangular or cubic shape. A packaging box that is fixed to the lower inner wall at the connection between the four side plates so that the cut ends of the cut lines are directed inward of the packaging box to form support steps for the packaged article.