JP2001240141A - Cushioning material structure of corrugated fiberboard pack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cushioning material structure of a corrugated fiberboard pack which can protect a heavy product without increasing the number of components and man-hours for assembly. SOLUTION: A side face of a corrugated fiberboard box 1 is structured as double walls 1a, 1b, a space surrounded by the double walls 1a, 1b and having an opening 1c on an upper part is formed, folds 2a, 2a, etc., are provided on rims of a lid 2 for closing the upper part of the box 1, and the folds 2a, 2a, etc., are inserted into the space from the opening 1c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cushioning material used for packing electronic equipment and the like in a cardboard box, and more particularly to a cushioning material structure for cardboard packaging which has a small number of parts and is easy to assemble.

[0002]

2. Description of the Related Art Conventionally, when packing a heavy object in a cardboard box, a cushioning material is interposed between the cardboard box and the article so that the packed article is not damaged by an impact due to a drop or the like. I was

FIG. 5 and FIG. 6 show such a conventional cushioning material structure. The side surfaces of the cardboard box 5 shown in FIG. 5 are provided with folds 5a and 5a. The inside of the turn 5a is a cavity as shown in FIG. A lid 6 made of cardboard pieces is placed on the upper part of the cardboard box 5.

[0004] Such a cushioning material structure does not require other members in addition to the cardboard material, and is advantageous in terms of manufacturing cost and parts management. However, only two cardboards are used as cushioning materials on the side surfaces. If the weight of the product put in is heavy, there is a problem that the product is broken when dropped.

[0005] In order to prevent the product from being damaged when dropped, FIG.
As shown in FIG. 5, a cushioning material in which a corrugated cardboard piece 7 is adhered is also put in the folded-back portion 5a of the corrugated cardboard box 5 of FIG.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object thereof is to protect a heavy product without increasing the number of parts and the number of assembling steps. An object of the present invention is to provide a cushioning material structure for cardboard packaging that can be performed.

[0007]

According to the present invention, there is provided a cushioning material structure for a cardboard box according to the present invention, wherein a side surface of a cardboard box has a double wall structure, and a space surrounded by the double wall and having an opening at an upper portion is formed. A fold is provided at the edge of the lid that closes the top of the cardboard box, and the fold is inserted into the space from the opening.

Further, in the cushioning material structure of the cardboard packing, the cardboard box and the lid are integrally formed via a folded portion.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cushioning material structure for a cardboard box according to an embodiment of the present invention will be described with reference to the drawings. FIG.
1A is an exploded perspective view showing a cushioning material structure of a cardboard package according to a first embodiment of the present invention, FIG. 1B is a perspective view showing the cushioning material structure, and FIG. FIG. 3 is a sectional view taken along the line AA in FIG. 1 and FIG. 3 is a sectional view taken along the line BB in FIG.

As shown in FIGS. 1 and 3, the side surface of the cardboard box 1 is folded so that an outer wall surface 1a and an inner wall surface 1b are formed. A slit 1c that opens a space between the outer wall surface 1a and the inner wall surface 1b is provided at the upper part of the turn.
Is provided.

Four edges of the lid 2 for closing the upper part of the cardboard box 1 are formed with folds 2a. When the upper part of the cardboard box 1 is closed with the lid 2, as shown in FIG. 1 (b) and FIG.
1c are inserted into the space between the outer wall surface 1a and the inner wall surface 1b. The folded portions 2a, 2a,... May not be doubled as shown in the figure, but may be tripled or quadruple in order to increase the buffer effect.

Since the folds 2a, 2a,... Serve as cushioning materials,
The product can be prevented from being damaged when dropped. Further, the number of parts and the number of assembling steps can be reduced as compared with the conventional one shown in FIG. Further, the lid 2 is folded back 2a, 2a
Are fitted to the cardboard box 1, so that there is no deviation from the cardboard box 1 as compared with the case where the lid is merely placed.

FIG. 4 is a perspective view showing a cushioning material structure of a cardboard package according to a second embodiment of the present invention. In this example, the side surface of the cardboard box 3 is formed double with an outer wall surface 3a and an inner wall surface 3b. The upper part of the space between the outer wall surface 3a and the inner wall surface 3b is open.

The lid 4 formed integrally with the cardboard box 3 via a bent portion is provided with folds 4a, 4a,... At three edges. By closing the lid 4, the folded back 4a,
4a enter the space between the outer wall surface 3a and the inner wall surface 3b and act as a cushioning material. In this example, the number of parts is smaller than in the first embodiment, and the number of assembling steps is reduced.

[0015]

According to the cushioning material structure of the cardboard packing of the present invention, the number of parts and the number of assembling steps are small, and the folded back is a cushioning material, so that it is possible to prevent the product from being damaged when dropped.

Further, compared to the case where the lid is simply placed, there is no deviation from the cardboard box. Further, the dimensions between the inner walls of the cardboard box are constant, so that the storage state of the product is stabilized.

[Brief description of the drawings]

FIG. 1A is an exploded perspective view showing a cushioning structure of a cardboard package according to a first embodiment of the present invention, FIG.
(B) is a perspective view showing the buffer material structure.

FIG. 2 is a sectional view taken along the line AA in FIG.

FIG. 3 is a sectional view taken along line BB in FIG. 1 (b).

FIG. 4 is a perspective view showing a cushioning structure of a cardboard package according to a second embodiment of the present invention.

FIG. 5 is a perspective view showing an example of a conventional cushioning material structure for cardboard packaging.

6 is a sectional view taken along the line CC in FIG.

FIG. 7 is a cross-sectional view showing another example of a conventional cushioning material structure for cardboard packaging.

[Explanation of symbols]

1 Cardboard box, 1a outer wall surface, 1b inner wall surface, 1c
Slit 2 lid, 2a folded 3 cardboard box, 3a outer wall surface, 3b inner wall surface 4 lid, 4a folded 5 cardboard box, 5a folded 6 lid 7 cardboard piece

Continued on the front page F term (reference) 3E060 AA03 AB03 AB12 BA08 BA13 BA22 BB05 BC02 CC02 CC14 CC19 CC52 DA25 DA26 DA30 EA17 3E066 AA02 BA02 BA05 CA04 GA01 JA01 KA05 MA01 NA42

Claims (2)

[Claims] 1. The side surface of a cardboard box has a double wall structure,
A space surrounded by the double wall and having an opening at an upper portion is formed, a fold is provided at an edge of a lid for closing an upper portion of the cardboard box, and the fold is inserted into the space from the opening. Cushioning material structure of cardboard packaging. 2. The cushioning material structure for a cardboard box according to claim 1, wherein the cardboard box and the lid are formed integrally via a folded portion.