JPH0672430A - Packing box - Google Patents

Abstract

PURPOSE:To obtain a packing box where a core made of corrugated board paper is used to mitigate environmental pollution and save space, instead of a core made of foamed plastic which causes pollution and environmental problems. CONSTITUTION:A backing box body 1 is made of corrugated board paper, and a core made of corrugated board paper and having a M-shape cross section is placed on a bottom 5b of the packing box body 1. The core consists of a first core 8 having mounts 11a and 11b for a product 21 in the middle and a second core 14 having cut-raised parts 17a and 17b in the middle. The product 21 is horizontally placed between the first and second cores 8 and 14, and a top cover 5a of the packing box body 1 is closed. Therefore, an external impact and vibration are absorbed by the deformation and restoration of the first core 8, thus the product 21 is kept in place and protected by the box body 1 and the core.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging box suitable for packaging electronic equipment and the like.

[0002]

2. Description of the Related Art Conventionally, a packing box using a styrofoam resin, urethane foam or the like as a core has been widely used for packing electronic devices and the like.

[0003]

However, the subsequent treatment of the plastic material has been a problem. That is, when burned, some of them may damage the furnace or generate toxic gas, and even if the waste is filled in as it is, it does not decompose and is a major environmental problem. From the viewpoint of environmental protection, some countries have taken measures to ban the use of foamed plastics and the import of products.
An urgent switch to pollution-free packaging was needed. In view of the above points, the present invention is a treatment after use, in addition to resource saving that can be reused and recycled, low pollution that can be incinerated, space saving for transportation and storage, and cost reduction by reducing talent. It is also intended.

[0004]

The packing box of the present invention is arranged on a packing box body 1 made of corrugated cardboard and a bottom surface 5b of the packing box body 1 as shown in FIGS. At the same time, the cross section becomes M-shaped when placed on the bottom surface 5b,
The placing portions 11a and 1 of the product 21 are provided at substantially the middle of the M-shape.
First core 8 made of corrugated cardboard with 1b and product 21
And a second core 14 made of corrugated cardboard for controlling the position of the packaging box.

[0005]

In the packing box having the above-mentioned structure, the product 21 is placed on the placing portions 11a and 11b provided at the substantially middle portion of the M-shaped portion of the first core 8, and the second core 14 is The cut-and-raised parts 17a and 17b at the center of the upper surface 16 hold the product 21 from above, and are arranged so as to be always held in a fixed position. The first core 8 that absorbs the shock and vibration of the product by the deformation and return of the M-shape provides a packaging box that prevents the product 21 from being damaged.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the packaging box of the present invention will be described below with reference to FIGS. FIG. 1 is a sectional view of an embodiment of the packaging box of the present invention. FIG. 2 is an exploded perspective view of an embodiment of the packaging box of the present invention.

The packaging box body 1 is a rectangular corrugated cardboard box having a front surface 3a, a back surface 3b, a left side surface 4a, a right side surface 4b, an upper lid 5a and a bottom surface 5b. The product of this example is a video camera, which is a relatively expensive product. Therefore, in order to position the product 21 as a box suitable for the product and to more securely press the upper lid 5a, the upper surface folding portion 6 has the front surface 3a and the left and right side surfaces 4a and 4b at the upper end portion of 90 ° inward. Bend and cover the three sides of the box opening 5c like a frame. Also, the front surface 3a of the upper lid 5a
The tongue-shaped insertion piece 7 is provided at the center of the tip of the side that contacts with the front surface 3a.
A tongue-shaped insertion piece cut in a semicircular shape in the center of the upper surface of the front surface 3a at the center of the upper surface folded-in portion 6 of the tongue-shaped insertion piece 7 in contact with the 90 ° bending line. The finger contact part 7b of 7 is provided.

The shape of the box is determined by the selection of materials such as the structure of the corrugated board of the packing box main body 1, the size of the wave forming the corrugated board core, and the workability, the production amount, the price, etc. Used boxes are used.

The first core 8 has a longitudinal length l (perpendicular to the step-formed core) having a structure more than that of double-sided corrugated board,
It is made of a horizontally long rectangular base paper having a horizontal width w ₁ on the side of the grain (parallel to the corrugated core). The vertical length l is substantially the same as the inner length L of the packaging box body 1, but the horizontal length w ₁ is the packaging box body 1
Of the inner width W and inner height H of w ₁ = (0.92
1.02) × (2H + W). 1 / of this width w ₁
2, a center line 12 is drawn, and side lines 13a and 13b are drawn from the center line 12 to the left and right approximately 0.58 to 0.71 times the inner width W of the packaging box body 1.

Here, the center line 12 is provided with ruled lines from one surface of the corrugated board, the left and right side lines 13a and 13b are provided with ruled lines from the other surface, and the left and right side lines 13a and 13b are respectively 120 ° to 135 °. Side line 13 by bending into
The outsides of a and 13b are vertical surfaces 9a and 9b having a height of about 0.8H, which face the insides of the front surface 3a and the back surface 3b of the packaging box main body 1, and the vertical surfaces between the side lines 13a and 13b and the center line 12 are vertical surfaces. The inclined surfaces 10a and 10b form an angle of 45 ° to 60 ° with 9a and 9b. Center line 12 at this time
Center angle 90 ° to 120 ° based on
There is a letter-shaped core.

At approximately the center of the inclined surfaces 10a and 10b,
It has a fold line parallel to the center line 12, and U-shaped notches are made on the left and right sides, respectively, and 30 ° to 45 ° with respect to the inclined surface.
The product mounting portions 11a and 11b are provided so as to be bent and parallel to the bottom surface 5b of the packaging box body 1.

The first core 8 thus formed is inserted into the main body 1 of the packaging box so as to have an M-shaped cross section. The vertical surfaces 9a and 9b of the first core 8 are Packing box body 1
The front side 3a and the back side 3b of the first core 8 facing each other with a space for one sheet of corrugated paper, respectively.
The bottom side of b is arranged so as to be in uniform contact with the bottom surface 5b of the packaging box body 1. Also, the inclined surfaces 10a and 10 of the first core 8
The U-shaped cutout outer peripheries of the product mounting portions 11a and 11b provided in b are properly fitted to the outer peripheries of the product 21 when the product 21 is properly placed on the mounting portions 11a and 11b.

The second core 14 is made of a horizontally long rectangular base paper having a paper structure of at least a double-sided corrugated board or more similar to the first core 8. The length 1 is approximately the same as the inner length L of the packaging box body 1, and the horizontal width is w ₂ ≈1.8H + W with respect to the inner width W and inner height H of the packaging box body 1. take w ₂ . A center line 19 is drawn to ½ of this lateral width w ₂ , and the inner width W of the packing box body 1 is 0.5 to the left and right from this center line 19.
When the side lines 20a and 20b are drawn at a double distance, and the ruled lines are put from the other surface and bent at 90 °, respectively, the side lines 20a and 20b are drawn.
The outside of 0b is in contact with the insides of the front surface 3a and the rear surface 3b of the packaging box body 1, and the side surfaces 15a and 15b are approximately 0.9H in height.
And a horizontal top plate 16 between the side lines 20a and 20b.
, And a trapezoidal core with a U-shaped cross section is formed.

On the basis of this center line 19, a second core opening 22 is provided at the center of the upper plate 16, and cut-and-raised portions 17a and 17b are provided on both side surfaces of the second core opening 22. Further, the left and right ends of the top plate 16 are bent upward by 90 ° so as to contact the left and right side faces 4a and 4b of the packaging box body 1, and the small side plates 18a and 18b are provided to form the second core 14. .

It should be noted that the size ratio of the packaging box body 1 also changes depending on the size, weight, etc. of the product 21, and the height of the core also changes accordingly. Further, the central angle of the M-shape is also determined in a range in which the ruled line portion of the center line 12 of the M-shaped central portion of the first core 8 does not touch the bottom surface 5b of the packaging box body 1.

The above-mentioned three main points, namely, the packaging box main body 1 and the first
The operation of packaging the product 21 by the inner core 8 and the second inner core 14 and preventing the product 21 from vibration and impact will be described. The packing box body 1 is placed on a flat table, the upper lid 5a is wide open, and the box opening 5c has a rectangular shape with 90 degrees at four corners without distortion. The inside of the bottom surface 5b of the packaging box body 1 is unlikely to be a flat surface due to the form of the box, but at least the boundary between the front surface 3a and the back surface 3b maintains a smooth surface. The bases of the vertical surfaces 9a and 9b of the child 8 are on the same plane and are in uniform contact with each other.

The first core 8 has its three ruled lines 12, 1
3a and 13b are each folded in a predetermined direction and trimmed so that the cross section shows an M shape (center angle is 90 ° to 120 °). Next, the product placement parts 11a and 11b are bent along the respective folding lines so that the product placement parts 11a and 11b are kept horizontal and the product 21 can be held.

The first core 8 is mounted on the inside of the packing box body 1, but the bottom surfaces of the vertical surfaces 9a and 9b of the first core 8 are in proper and even contact with the bottom surface 5b of the packing box body 1. The M-shaped cross section of the first core 8 contacts the inside of the left and right side surfaces 4a and 4b of the packaging box body 1, and the vertical surfaces 9a and 9b of the first core 8 are the front surface 3a of the packaging box body 1. And, the back surface 3b and the back surface 3b stand upright with a gap into which one cardboard can be inserted.

The product 21 packaged with thin leaf wrapping paper or the like is gently placed on the product mounting bases 11a and 11b provided at the substantially central portions of the inclined surfaces 10a and 10b of the first core 8. At this time, the U-shaped cuts on the inclined surfaces 10a and 10b come into contact with the periphery of the lower side surface of the product 21 and lock the movement of the product 21 in the front-rear direction and the left-right direction.

The second core 14 has a U-shaped trapezoidal upper surface plate 16
Then, it is confirmed that the side surfaces 15a and 15b of the second core 14 bent by 90 ° with ruled lines on the left and right sides are upright correctly.
side surfaces 18a and 18b in contact with a and 4b, top plate 16
Cut-and-raised parts 1 on both sides of the opening 22 of the central second core of the
Both 7a and 17b are raised along the fold line, being careful not to bend them too much and reduce the crimping force.

Sides 15a and 15b of the second core 14
Is placed in the gap between the front surface 3a and the back surface 3b of the packing box body 1 and the vertical surfaces 8a and 8b of the first core 8, and the bottom sides of the side surfaces 15a and 15b of the second core 14 are the packing box body. 1
It is inserted until it touches the inside of the bottom surface 5b of.

At this time, the central second core opening 22 and the central second core opening 22 of the top plate 16 of the second core 14 are formed.
The cut-and-raised parts 17 a and 17 b provided on the side surface of the product 21 come into contact with the upper side surface and the upper surface of the product 21.

The small side plates 18a and 18b provided at the left and right ends of the upper plate 16 of the second core 14 are arranged below the upper folded portion 6 of the packaging box body 1, and the second core 14 is also provided. Of the upper second plate opening 16 of the central second opening 22 of the upper surface of the upper plate 16 is the upper lid 5a of the packaging box main body 1.
When it is closed, it is pressed firmly together with the upper ends of the small side plates 18a and 18b to lock the vertical movement of the product 21.

The upper lid 5a of the packing box main body 1 has a tongue-like insertion piece 7 at the center of the tip thereof inserted into a notch 7a provided in the front surface 3a of the packing box main body 1 and the central portion of the upper surface folding portion 6 to form a tape or the like. Full locking is done using.

The operation of absorbing the force of the packaging box containing the product 21 integrated as described above when a shock or vibration occurs during transportation, cargo handling, or storage will be described. First, when the static pressure is applied to the packaging box, that is, when the packaging boxes are stacked high or the pallets are stacked in multiple layers, the strength of the packaging boxes against the load in the vertical direction is It is involved in the compressive strength, the compressive strength of the liner and the core, the correctness of the molding of the core, and the Young's modulus of the corrugated board box determined by the normality of adhesion.

In the case of this example, it is mainly to cope with a dynamic load, and how the first core 8 acts as a cushioning material against an impact force due to a collision or a drop and a vibration during transportation. . With respect to the dynamic load in the vertical direction of the packaging box body 1, the action of the first core 8 is the strength of the vertical compression of the vertical surfaces 9a and 9b, which absorbs part of this force, and the vertical surface 9
Inward deflection of a and 9b and M-shaped inclined surfaces 10a and 1
0b extension and deflection, and product placement parts 11a and 11b
Plane compression, etc. dissipates, attenuates and absorbs impact and kinetic energy. It should be noted that although some movement of the product 21 and slight vibrations etc. occur, the second core 14 functions to press the product 21 from the upper side and bring it into a fixed position.

When an impact / vibration is applied from the front surface 3a to the rear surface 3b of the packaging box body 1, that is, in the front-back direction, the number and height of the corrugated cardboard cores on the vertical surfaces 9a and 9b of the first core 8 are increased. In addition to the plane compression strength and burst strength determined by
It is absorbed by the movement due to the suspended structure by the M-shaped inclined portion and the vertical compression force.

From the left side surface 4a to the right side surface 4b of the packaging box body 1.
That is, with respect to the impact and vibration received in the left-right direction, the M-shaped cross section is not strong only by showing the present embodiment because the M-shaped cross section is parallel to the corrugated cardboard (parallel to the corrugated core). However, although not shown in the figure, a bottom plate and a top plate having the same dimensions as the inner dimension of the bottom surface 5b of the packaging box body 1 are arranged so that the corrugations of the corrugated board are parallel to the horizontal direction of the packaging box body 1. Will be compensated.

In any case, the force applied to the product 21 from the outside is diverged / absorbed by vibration, expansion / contraction, and flexion / expansion over time depending on the characteristics of the material of the corrugated board and the selected shape and structure. 21 safe storage is maintained.

A first core 8 having an M-shaped cross section is inserted inside the main body 1 of the packaging box, and the product placing portion 11a is placed at the center of the M-shaped inclined surfaces 10a and 10b. And 11b are arranged, the product 21 is placed in the center of the M-shape, and the second core opening 22 and the cut-and-raised part 17a are further provided in the center.
By covering the second core 14 provided with 17b and 17b from above the product 21 and holding the product 21 at a fixed position, external shocks and vibrations are absorbed by the deformation return of the M-shaped core of the corrugated board, and buffered. It works well as a material and compared with conventional foaming materials such as styrofoam and urethane foam,
The volume of the material is reduced to about 1/10 or less, and the number of people in the packaging box body 1 is reduced to save space during core material storage, resource saving by post-use and recycling, and easy disposal as waste. Pollution prevention,
It has a number of advantages such as, and thus achieves the purpose of proper packaging.

The height of the vertical surfaces 9a and 9b of the first core 8 is shorter than 0.8H of the embodiment (H = the inner height of the individual carton 2) and is about 1 / 2H, and the central angle is Prepares a pair of upper and lower cushion materials with an angle of around 120 °, and uses an M / W type core that positions the product 21 in the center thereof to make it stronger against the impact force from the upper lid 5a surface. You can also do it.

By reducing the width of the M-shaped inclined surface, the product placing portion 11
An M-shaped deformed core with a notch that fits with a and 11b is made, and this is rotated 90 ° with respect to the conventional first core 8, and its vertical plane is set to the left and right of the packaging box body 1. Side 4a
And 4b, so as to be in contact with the product placement parts 11a and 1b.
Combined with 1b and position the product 21 on it M ・
Impact from the left and right sides of the packaging box body 1 using the M'shaped core
It is also possible to improve the shock absorbing property against vibration. Further, the present invention is not limited to the above-described embodiments, and various modifications and changes can be made without departing from the gist of the present invention.

[0033]

As described above, in the packaging box of the present invention, the first core which is made of corrugated cardboard and has the M-shaped cross section and the product mounting portion provided on the inclined surface of the central portion is packaged. Place the product in the center of the box body, place the product horizontally on the product placing part, cover it with a second core with a cut and raised part from the top to the center, and tighten it with the top lid of the packaging box body to always fix the product. It is held in a position and does not have a core that absorbs shocks and vibrations from the outside by deforming and returning to the M-shape. Compared with conventional cores such as Styrofoam,
The effects of simplifying manufacturing, saving space for material transportation and storage, reducing costs by reducing the number of talented people, reusing and reusing resources after use, and reducing pollution by incineration. Have.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an example of a packaging box of the present invention.

FIG. 2 is an exploded perspective view showing an example of a packaging box of the present invention.

[Explanation of symbols]

 1 Packing box body 8 First core 14 Second core 21 Product

Claims (1)

[Claims] 1. A packing box main body made of corrugated cardboard, and a cross section of the packing box main body having a cross section of M at the bottom of the packing box main body.
It is characterized in that it has a first core made of corrugated cardboard which is formed in a letter shape and which has a product mounting portion in a substantially middle portion thereof, and a second core made of corrugated cardboard which regulates the position of the product. Packing box.