JPH09118369A - Corner cushion made of corrugated fiberboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a corner cushion made of corrugated fiberboard which is easy to fold and assemble. SOLUTION: A single corrugated fiberboard is cut into a developed shape, which is partially pasted, so that first and second standing boxes 14, 16 are formed into a flat rectangular tube which can be folded flat in series and connected so that they can be folded in a chevron-shape, and a lateral box 12 is made into a flat rectangular tube in parallel with the second standing box 16. An inner thick wall 12a of the lateral box 12 is connected in common with a lower side of an internal standing wall 16a of the second standing box 16, and an internal flat wall 12b is made to be foldable in contact and overlapping with the internal standing wall 16a. An external flat wall 12c on a side where the lateral box 12 faces the first standing box 14 in a cylindrical direction is extended by an equal length to a thickness of the first standing box 14 to form a first standing box receiving wall 18. A lock piece 20 is bent and protruding foldably in a chevron-shape from an end rim of the receiving wall 18, while a lock hole 22 is formed corresponding to the lock piece 20 on an outer standing wall 14a of the first standing box 14.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to electric appliances, furniture,
The present invention relates to a cushioning material for corrugated cardboard corners, which is a cushioning material used when packaging ceramics and the like. More specifically, in order to protect the products in the packaging box, the rectangular planar box body is used by being arranged at the inner corner of the packaging box, and the rectangular shape is provided upright on the rectangular adjacent side portion of the planar body part. The present invention relates to a corrugated cardboard corner cushioning body including the first and second upright box portions.

[0002]

2. Description of the Related Art
BACKGROUND ART As a cushioning material used for packaging electric appliances and the like, a foamed polystyrene cushioning body is widely used.

However, the styrofoam cushion is
When incinerating, the heat generation temperature is high and damages the incinerator.
There are problems that a molding die is required for manufacturing, it is necessary to prepare the dies for different shapes, they cannot be folded, they are bulky, and a large storage space is required.

Therefore, it is conceivable that the corner cushioning body is formed of corrugated cardboard which does not cause the above-mentioned problems that occur when it is made of styrofoam.

However, as far as the present inventors know, there is no corrugated cardboard corner cushioning body that is easy to fold and assemble.

In view of the above, the present invention provides a folding and
An object of the present invention is to provide a corrugated cardboard corner cushioning body that is easy to assemble.

[0007]

A cushioning body for corrugated cardboard corners according to the present invention solves the above-mentioned problems by the following constitution.

In order to protect the products in the packaging box, the rectangular flat box body portion is used which is disposed at the inner corner of the packaging box and is used.
A corrugated cardboard corner cushioning body comprising rectangular first and second upright box parts standing upright on the rectangular adjacent sides of the flat box part, the flat box part and the first and second upright boxes. After punching out a single corrugated cardboard into a developed shape so as to form a box body part, partially sticking it, the first and second upright box body parts are flat rectangular tubular shapes that can be crushed in series. It is connected in a mountain foldable manner, the flat box part is formed into a flat rectangular tube shape that can be crushed in parallel with the second upright box part, and the inner thick wall of the flat box part is upright to the second upright It is connected in common with the lower side of the inner upright wall of the box body part, and the inner flat wall is brought into contact with the inner upright wall to be folded so that it can be folded. The outer plane wall on the side facing the body is extended by the same length as the thickness of the first upright box body to form a first upright box body receiving wall, and Locking piece from the wall edge is capable bent projecting mountain folded, the outer side wall of the first upright box body, wherein the locking holes corresponding to the lock piece is formed.

[0009]

Since the corner cushioning body of the present invention has the above-mentioned structure, it exhibits the following functions and advantages.

Since the corner cushioning body is made of corrugated cardboard and can be folded, the problems that occur in the conventional foamed polystyrene cushioning body have a high heat generation temperature and damage the incinerator when incinerated. Need
This eliminates the need to prepare the molds for different shapes, the bulkiness, and the large storage space required, as well as the recycling (reuse).

In the assembly, the first upright box body portion is rotated about the mountain folding portion as an axis until the inner upright wall of the first upright box portion abuts against the flat box body portion, and then the lock piece is mountain folded and locked. All that is required is to insert the lock piece into the hole by inserting a finger from the outer opening portion of the first upright box body portion 14 and forcibly pushing it out to release the locked state.
The first upright box body portion is rotated outward so that the inner plane wall of the flat box body portion abuts and overlaps with the inner upright wall of the second upright box body portion and is folded into a flat shape.

Therefore, the corner cushioning body of the present invention is easy to fold and assemble.

Further, according to claims 2, 4, and 5, by forming a locking projection and a receiving slit, a locking rib and a receiving recess, and further, a closing lid or the like at the outer opening of each box portion. ,
If necessary, the strength of the buffer body can be relatively increased.

When the guide protrusion is formed as in the third aspect of the present invention, the cushioning body can be assembled more smoothly.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a corrugated board cushion for a corrugated board (hereinafter abbreviated as "corner cushion") of the present invention will be described below with reference to the drawings.

FIG. 1 is a developed state diagram of the corner cushioning body,
2 and 3 are perspective views of the corner cushioning body of this embodiment before and after assembling, respectively.

(1) Basically, a piece of cardboard is punched into a developed shape so as to form the flat box body 12 and the first and second upright box bodies 14 and 16 (see FIG. 1). ), And is formed by partially adhering.

The first and second upright box parts 14, 16
Are connected to each other in a flat rectangular tube shape that can be crushed in series so as to be mountain-foldable, and the flat box body section 12 is attached to the second upright box body section 16.
Is a flat rectangular tube that can be crushed in parallel, and
The inner thickness wall 12a of the flat box body 12 is attached to the second upright box body 1
6 is connected in common with the lower side of the inner upright wall 16a of 6, and the inner flat wall 12b of the flat box body portion 12 is connected to the second upright box body portion 16.
The inner upright wall 16a can be folded by being brought into contact with and superposed on it.

The outer plane wall 12c of the plane box body 12 on the side facing the first upright box body portion 14 in the tubular direction is extended by the same length as the thickness of the first upright box body portion 14, The first upright box part receiving wall 18 is formed, and the lock piece 20 is bent and protruded from the end edge of the first upright box part so as to be mountain-foldable. A lock hole 22 is formed corresponding to the lock piece 20. In the illustrated example, the lock hole 22 is formed by cutting and raising, but it may of course be punched out.

The lock piece 20 is rectangular in this embodiment, and the lock hole 22 is also rectangular. Lock piece 2
Assuming that the bottom length of 0 is a, the top length is b, the bottom length of the lock hole 22 is a ', and the top length is b', the relationship between them is a≥a ', b. > B '. a and b are
It is desirable that the relationship of a ≦ b is satisfied. Also, the lock piece 2
The shape of 0 is not limited to a rectangle, and any shape such as an inverted trapezoid or a heart shape may be used as long as the relationship of a ≦ b is maintained.

Although not inevitable, in this embodiment, in order to secure the strength of the shock absorber more reliably, the following configurations are adopted.

A locking projection piece 24 is formed on the inside of the lower thickness wall 14b of the first upright box body portion 14 that overlaps and contacts the first upright box body receiving wall 18, and the locking projection piece 24 is a flat surface. Box part 12
Can be engaged with a receiving slit 26 formed at the lower end of the outer thickness wall 12d. This receiving slit 26
Has a gap into which the locking projection 24 can be fitted. The locking projection 24 is provided on the flat box body 12 of the first upright box body 14.
It has the effect of preventing lifting from above.

Further, the locking projection 24 is extended to form a fan-shaped guide projection 28 which is inserted into the flat box body portion 12.

Further, the first and second upright box parts 14, 16
A locking projection 30 and a receiving recess 32 are formed between the joint sides of the inner upright walls 14c and 16a. This is because it is possible to reliably prevent the vertical movement of the first upright box body portion 14 and the second upright box body portion 16 in the upright direction, and to prevent the shock absorber from collapsing and deforming. The locking projection 30 is formed on the first upright box body portion 14 side and the receiving recess 32 is formed on the second upright box body portion 16 side, but they may be reversed, and further, a plurality of pairs are formed. May be.

Further, as shown by the chain double-dashed line, the flat box body 1
2 and the first and second upright box portions 14 and 16 are connected to the outer cylindrical opening portions with the closing lid portions 36 and 37 having the fin portions 34 and 35, respectively, the cushioning member The intensity of.

(2) The corner cushioning body of the present invention is manufactured by punching (die-cutting) a corrugated board into a developed shape as shown in FIG. 1 by press working and then partially adhering it.

The practical cross-hatched portion indicates the margin and the dotted cross-hatched portion indicates the receiving and adhering portion.

First, while the mountain folding parts M1, M2, M3, and M4 are mountain-folded in order, the first adhesive margin A1 is received and adhered to the bonding portion B.
1 is glued to form the first upright box body portion 14.

Similarly, the mountain folds M5, M6, M7, M8
The second adhesive margin A2 is glued to the receiving and adhering portion B2 while sequentially folding the mountain in order to form the second upright box body portion 16.

Subsequently, the mountain weaving portions M9, M10 and M11 are folded in this order while the third glue margin A3 is applied to the receiving and adhering portion B3.
The flat box body portion 12 is formed by adhering it to (on the back side of the paper in the drawing).

The pasting mode is usually glue,
Adhesion with double-sided tape or the like, or mechanical attachment with rivets, stapler or the like may be used.

The corner cushion thus manufactured can be folded into a flat shape by contacting the inner flat wall 12b of the flat box body portion 12 with the inner upright wall 16a so as to be overlapped with each other.

(3) Next, a method of assembling and folding the corner cushioning body of the present invention will be described.

From the state shown in FIG. 2, the first upright box portion 14 is rotated about the mountain fold portion M12 as an axis until the inner upright wall 14a of the first upright box portion 14 contacts the flat box portion 12. Then, the locking projection 24 fits into the receiving slit 26, and the locking rib 30 fits into the receiving recess 32.

In this state, the lock piece 20 is mountain-folded and fitted into the lock hole 22 (see FIG. 4). Then, the first upright box body portion 14 cannot be separated from the first upright box body portion receiving portion 18, and the assembly of the corner cushioning body is completed.

In order to release the assembled state, the lock piece 20 is forcibly pushed outward by inserting a finger into the outer opening of the first upright box portion 14 to release the lock state. The first upright box portion 14 with the mountain folding portion M12 as an axis
2 is turned to the outside as shown in FIG. 2, and as described above, the inner plane wall 12b of the plane box body 12 is set to the inner upright wall 1.
6a is contact-polymerized and folded in a plane.

The corner cushioning body of the present invention can be used not only for packaging corners of appliances such as electric appliances, but also for appliances having protrusions such as casters, the inner bottom surface of the caster hole is repeated. It can be used by removing it. Similarly, a device with protruding corners can be dealt with by pulling out the inner surface and the like.

Instead of the above-mentioned closing lid, a corrugated cardboard or plastic tubular body 39 or rib-shaped body as shown in FIG.
It is also conceivable to insert it from the outer opening. The tubular body 39 is provided with a rectangular notch 40 at a portion corresponding to the lock hole 22.

[Brief description of the drawings]

FIG. 1 is a development view of a corrugated cardboard corner cushioning body according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state in which the cushioning body for corrugated cardboard corners in FIG. 1 is being assembled.

FIG. 3 is a perspective view showing a completed assembled state of the corrugated board cushioning body in FIG. 1;

FIG. 4 is a cross-sectional view of a locking state of a locking part in an assembled state of the corrugated board cushion for a corrugated board in FIG.

FIG. 5 is a perspective view of a tubular body used to reinforce the strength of the corrugated board cushioning body of the present invention.

[Explanation of symbols]

 12 plane box part 12a inner thick wall 12b inner plane wall 14 first upright box part 14a outer upright wall 14b lower thick wall 14c inner upright wall 16 second upright box part 16a inner upright wall 18 first upright box Part receiving wall 20 Lock piece 22 Lock hole 24 Locking projection piece 26 Receiving slit 28 Guide projection piece 30 Locking rib 32 Receiving recess 35, 37 Closing lid section 39 Reinforcing tubular body

Claims (5)

[Claims] 1. In order to protect the product in the packaging box, it is used by being arranged at the inner corner of the packaging box, and is erected on a rectangular flat box body portion and a rectangular adjacent side portion of the flat box body portion. A cushioning body for corrugated board made of rectangular first and second upright box parts, which is a single sheet so as to form the flat box part and the first and second upright box parts. After punching the corrugated cardboard into a developed shape and partially adhering it, the first and second upright box parts are connected to each other in a flat rectangular tube shape that can be crushed in series to be mountain-foldable,
The flat box body is a flat rectangular tube that can be crushed in parallel with the second upright box body, and the inner thickness wall of the flat box body is set up inside the second upright box body. It is connected in common with the lower side of the wall, and the inner flat wall is brought into contact with the inner upright wall to be overlapped so that it can be folded, and the flat box part faces the first upright box part in the tubular direction. The outer side flat wall on the side to be extended is extended by the same length as the thickness of the first upright box body portion to form a first upright box body portion receiving wall, and the lock piece is mountainous from the edge of the receiving wall. A corrugated cardboard corner buffer body, which is bent and protruded so as to be foldable, and has a lock hole formed in an outer upright wall of the first upright box body corresponding to the lock piece. 2. The locking protrusion according to claim 1, wherein a locking projection is formed inside a lower thickness wall of the first upright box wall that overlaps and abuts the first upright box receiving wall. Is capable of engaging with a receiving slit formed at a lower end portion of the outer thickness wall of the flat box body portion. 3. The cushioning body for corrugated cardboard corners according to claim 2, wherein the locking projection is a fan-shaped guide projection that extends and is inserted into the flat box body. . 4. The locking rib and the receiving concave portion are formed between the inner joint side portions of the first upright box body portion and the second upright box body portion according to claim 1. A buffer for corners made of corrugated board characterized by being 5. The closing lid portion having a fin portion on each of the outer side surfaces of the flat box body portion and the first and second upright box body portions according to any one of claims 1 to 4 so as to be mountain-foldable. A buffer for corners made of corrugated board, which is characterized in that