JP2001328678A - Packing spacer and packing structure employing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packing spacer which is fabricated and stored easily while being adaptable with a single sheet of corrugated board to any case wherein the number of articles or thickness of the articles to be packed varies. SOLUTION: The packing spacer 3 for filling spaces between articles 2 to be housed in a packing case 1 and sustaining the articles 2 at its upside is formed out of a single sheet of corrugated board 4 approximately in a square shape. Creases 5 and 6, each being in a pair, are provided at opposite both sides of the corrugated board sheet 4, running in parallel with the edges at both sides, engaging grooves 10 and 11, each being in a pair, are formed at the edges of opposite both sides of the corrugated board sheet 4. A plurality of incisions 12-14 available for being engaged with the engaging grooves 10 and 11 are formed at a top panel part 9 at positions respectively different in distances from each of the inside creases 5. The parts at both sides of the corrugated board sheet 4 are bent inwardly respectively along each of the creases 5 and 6 and the engaging grooves 10 and 11 are engaged with any of the incisions 12-14, and thereby leg parts 7, 8 each in a V-shaped section are formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing spacer capable of stably storing and holding a packed article without using an air cushion material for cushioning or styrofoam, and a packing structure using the spacer.

[0002]

2. Description of the Related Art Conventionally, when a packaged product in which electronic components and the like are packed is stored in a cardboard box or the like, if there is a fraction of the packaged product, an empty space is generated, and the packaged product cannot be stably held.
Therefore, conventionally, as shown in FIG. 1, a spacer 50 made of styrofoam, an air cushion material, or the like is arranged in a gap between the packaged product 51 and the packaging box 52 to fill an empty space and to buffer the space.

[0003]

However, such a cushion material 50 is not only environmentally problematic but also difficult to reuse. In addition, the smaller the number of the packaged products 51, the larger the empty space, and a large amount of the cushion material 50 is required to fill the space. Further, there is a problem that a storage space equivalent to that during transportation is required when the cushion material 50 is stored.

Therefore, an object of the present invention is to provide a packing spacer which can be accommodated by a single piece of thick paper even if the number of packed articles to be stored increases or decreases or the thickness changes, and which can be easily assembled and stored. It is to provide a packing structure used.

[0005]

According to a first aspect of the present invention, there is provided a packing spacer for filling an empty space of a packaged product and holding the packaged product on an upper surface.
It is made of one substantially rectangular cardboard, and two folds parallel to both side edges are formed on opposite sides of the cardboard, and these folds form an outer leg and an inner leg. A top plate part is formed inside the inner fold,
An engagement groove is formed on the outer edge of the outer leg portion, and the top plate portion has
A plurality of pairs of cut pieces that can be bent downward in parallel with the fold are formed at different distances from the inner fold, and the outer leg and the inner leg of the cardboard are bent inward along the fold. At the same time, any one of the cut pieces is bent below the top plate part, and the engaging groove is engaged with the bent cut piece, so that the outer leg portion and the inner leg portion form a V-shaped cross section. A packaging spacer characterized by being formed is provided.

[0006] Both sides of the substantially square cardboard are bent inward twice along the fold line, and the engaging grooves are engaged with the cut pieces to form V-shaped legs. Since a plurality of cut pieces are formed at different distances from the inner fold, engaging the engaging groove with any of the cut pieces makes the height of the V-shaped cross section gradually variable. be able to. Therefore, even if the number of packaged goods accommodated in the packing box increases or decreases or the thickness of the packaged goods changes, and even if the height of the empty space changes, the cut pieces that engage the engagement grooves may be changed, One type of spacer can cope with a change in empty space. Further, since the leg portion having the V-shaped cross section has a certain degree of cushioning property against a vertical impact load, it can reduce the shock applied to the packaged product and has a function as a cushioning material. After use, the engagement groove is removed from the cut piece, and the legs are folded back, so that the cardboard can be returned to one cardboard, and the storage space can be reduced.

It is preferable that the notch has a tip portion wider than the engagement groove and a base portion narrower than the engagement groove. That is, when the cut piece is in the form of a strip having a constant width, when a vertical load is applied to the spacer, the engagement groove may come off the cut piece, and the leg portion having a V-shaped cross section may be crushed. , By making the tip end wider, the engagement groove is prevented from coming off the cut piece, and the section V
The shape-shaped leg can be prevented from being crushed.

According to a third aspect of the present invention, the engaging groove is formed in a dovetail shape having a narrow opening and a wide inner portion, and the cut piece has a tip portion wider than the inner portion of the engaging groove and a base portion engaged. It is preferable that the width is smaller than the depth of the groove and wider than the opening of the engagement groove. In this case, the engagement force between the engagement groove and the cut piece is further improved as compared with the second aspect, and the engagement groove can be reliably prevented from coming off the cut piece, and the V-shaped leg is prevented from collapsing. it can.

According to a fourth aspect of the present invention, it is preferable that a notch piece located closer to the inner fold has a higher bending height than a notched piece located farther away. That is,
When the engagement groove is to be engaged with the notch near the inner fold, the angle between the outer leg and the top plate is large,
By increasing the length of the notch, the engagement depth between the engagement groove and the notch can be ensured, and the engagement groove can be prevented from coming off the notch. Conversely, when the engagement groove is engaged with the notch piece far from the inner fold, the angle formed between the outer leg portion and the top plate becomes small. Therefore, even if the notch piece is short, the engagement groove and the notch piece are used. And the engagement depth can be secured.

According to a fifth aspect of the present invention, the engagement grooves are formed at a plurality of positions on the outer edge of the outer leg, and the top plate is located at different distances from the inner fold and at different positions in the width direction. Preferably, a plurality of pairs of cut pieces are formed. For example, if a plurality of cut pieces are formed in series in the longitudinal direction, it is possible to engage a plurality of cut pieces with one engagement groove.
Because it is necessary to form multiple cut pieces in close proximity,
The strength of the cardboard tends to decrease. Therefore, if the engaging groove is formed at a different position in the width direction of the outer leg portion as described in claim 5 and a plurality of cut pieces are formed at positions corresponding to the engaging grooves, the cut pieces can be formed at separate positions. There is no loss of cardboard strength.

According to a sixth aspect of the present invention, the packing spacer according to any one of the first to fifth aspects is housed in a packing box, and one or a plurality of packing articles are arranged on an upper surface of a top plate portion of the spacer. Provide a packing structure stored in a packing box.
With this configuration, it is possible to provide an inexpensive packaging structure suitable for transportation.

According to a seventh aspect of the present invention, the outer leg and the inner leg of the cardboard are bent inward along the crease, the outer fixing piece is bent below the top plate, and the projection of the outer fixing piece is slit. By engaging the holes, the legs having a substantially L-shaped cross section are formed, so that the height of the legs can be increased, and the thickness of the spacer can be maximized.

According to the present invention, the outer leg portion and the inner leg portion of the cardboard are bent inward along the fold line, and the locking claw is bent downwardly of the top plate, and the projection of the locking claw is slit. Since the leg portion having the V-shaped cross section is formed by engaging with the hole, the spacer is slightly thinner than that of the seventh aspect, but a thicker spacer can be formed by reducing the apex angle of the V-shape. .

According to a ninth aspect of the present invention, the lower edge of the central fixing piece is bent by sharply bending both sides of the cardboard inward along the inner fold and engaging the slit grooves of the central fixing piece and the stopper piece. Since the spacer is supported on the upper surface of the outer leg, the spacer can be configured to be thinnest.

[0015]

FIG. 2 to FIG. 6 show an example of a packing structure according to the present invention. The packing box 1 is made of a cardboard box. In the packing box 1, for example, a package 2 in which electronic components and the like are packed is stored, and a spacer 3 for filling an empty space is stored in the bottom of the package 2. . The package 2 of this embodiment is a box containing, for example, a reel around which a taping component is wound, and has a thin rectangular parallelepiped shape whose outer dimensions are almost the same as the inner dimensions of the packaging box 1. Packing 2 is packing box 1
One or a plurality is stored in the inside.

The spacer 3 is made of a cardboard 4 such as a single rectangular corrugated cardboard as shown in FIG. This corrugated paper 4 has a directionality 4a in the longitudinal direction. Two parallel folds 5 and 6 are formed on both sides of the corrugated paper 4 opposite to the long side direction in a direction perpendicular to the direction 4a of the corrugated paper 4 respectively. The legs 7, 8 having a predetermined width, preferably the same width, by the folds 5, 6
Are formed, and a central portion excluding the legs 7 and 8 constitutes a top plate portion 9. The legs 7 and 8 are bent inward along the folds 5 and 6 so as to go under the top plate 9. Opposite side edges of the corrugated paper 4, especially the outer legs 8
The first and second engagement grooves 10 and 11 are formed on the outer edge of the. As shown in FIG. 4A, the engagement grooves 10 and 11 are formed in a dovetail shape with a narrow opening 10a and a wide inner part 10b.

A plurality (three in this case) of notches 12, 1 engageable with the engaging grooves 10, 11 are provided on the top plate portion 9.
A pair of 3 and 14 are formed at symmetric positions. First to third cut pieces 12-14, as shown in (B) in FIG. 4, the width W ₁ of the distal end portion 12a of the engagement groove innermost portion 10b
Wider than the width S ₁ of narrower than the width S ₁ of the width W ₂ of the base portion 12b is engaging groove innermost portion 10b, and the engaging groove of the opening 10
It is wider than the width S ₂ of a. The openings 10a of the engagement grooves 10, 11 are tapered. Therefore, the engagement groove 1
0, 11 is the base 12 of any of the cut pieces 12 to 14
b, the tapered opening 10a further opens, and the base 12b smoothly engages with the inner part 10b (see FIG. 5). As a result, the cut pieces 12 to 14 are
It is prevented from easily coming off from 0,11.

A fold 12c is formed at the base of each of the first to third cuts 12 to 14 as shown by a broken line in FIG. 4B, and the cuts 12 to 14 are formed along the fold 12c.
14 can be bent downward with respect to the top plate 9. The root of the first cut 12 is a distance L1 from the fold 5, the root of the second cut 13 is a distance L2 from the fold 5, and the root of the third cut 14 is a distance L3 from the fold 5. . Further, the first to third cut pieces 12-14 of the bent when the height H ₁ to H _3, that is, the distance from fold line 12c to the end surface of the distal end portion 12a different. The engagement groove 10 is the outermost first notch 12
In the case of the engagement, the angle between the leg portion 8 and the top plate portion 9 is large. Therefore, by making the notch piece 12 the longest, the engagement depth between the engagement groove 10 and the notch piece 12 can be secured. Like that. On the other hand, when the engagement groove 10 is engaged with the innermost third notch 14, the angle between the leg 8 and the top plate 9 is small. Groove 1
0 and the engagement depth between the cut pieces 14 can be secured. The second cut 13 has an intermediate height between the first cut 12 and the third cut 14.

In the above embodiment, the first and third cut pieces 12 and 14 are formed side by side in the longitudinal direction so as to be able to engage with the first engagement groove 10, and the second cut piece is formed. 13 shows an example in which the cutout 13 is formed at a position away from the first and third cutouts 12 and 14 in the width direction so as to be able to engage with the second engagement groove 11. 12 to 14 may be formed at different positions in the width direction and the length direction.
As described above, the leg portions 7, 8 are bent inward along the fold lines 5, 6, and one of the engaging grooves 10, 11 is engaged with one of the cut pieces 12 to 14, thereby increasing the height. Are formed, the legs 7, 8 having different V-shaped cross sections.

FIG. 6 shows the engagement grooves 10 and 11 and the cut pieces 1.
7 shows a change in thickness when the engagement positions 2 to 14 are changed. (A) shows that the first engagement groove 10 is
And the height of the V-shaped legs 7, 8 is the highest. One packaged product 2 on the top plate 9 of the spacer 3
Is substantially equal to the depth inside the packing box 1, and one packing product 2 and the spacer 3 can be stably stored in the packing box 1. (B) shows the second engagement groove 11.
Is shown engaged with the second cut 13, and the height of the V-shaped legs 7, 8 is about the middle. The total thickness D when two pieces of packing 2 are placed on the spacer 3 is substantially equal to the depth of the packing box 1. (C) shows the first engagement groove 10
Is shown engaged with the third cutting piece 14, and the height of the V-shaped legs 7, 8 is the lowest. 3 on spacer 3
The overall thickness D when the individual packaged articles 2 are placed is substantially equal to the depth of the packaging box 1. By selectively engaging the engaging grooves 10 and 11 with the cut pieces 12 to 14 as described above, the height of the spacer 3 can be changed in three stages, and the number of the packaged goods 2 can be one.
One type of spacer 3 can cope with a change in the height of the empty space by increasing or decreasing the number to three. When a vertical impact load acts on the top plate 9, the legs 7, 8 or the cut pieces 12 to 14 having a V-shaped cross section are slightly deformed, and have a certain cushioning property. Therefore, the shock applied to the packaged product 2 can be reduced, and has a function as a cushioning material. After use, the engaging grooves 10 and 11 are removed from the cut pieces 12 to 14 and the legs 7 and 8 are folded back to be returned to one piece of corrugated paper 4 as shown in FIG. Therefore, the storage space can be reduced as compared with the time of transportation.

FIG. 7 shows a second embodiment of the present invention. The spacer 3 of this embodiment uses corrugated paper 4 'which is additionally processed from the corrugated paper 4 shown in FIG. 3 so as to be able to cope with various thicknesses. Therefore, the same parts as those in FIG. 3 are denoted by the same reference numerals, and redundant description will be omitted. At the side of the first cut piece 12 of the corrugated paperboard 4 ′, a locking claw 20 that can be bent in a direction perpendicular to the cut piece 12 is formed by cutting and raising. A portion 20a is formed. The outer leg 8 has a slit hole 21 that engages with the projection 20a. An outer fixing piece 22 is formed at a diagonal position of the top plate 9 so as to be bent in parallel with the longitudinal direction, and a slit hole 23 corresponding to the protrusion 22 a of the outer fixing piece 22 is formed in the outer leg 8. ing. Further, central fixing pieces 24 that can be bent in parallel with the longitudinal direction are formed on both long sides of the top plate 9, and bent at right angles to the longitudinal direction at the corners of the outer legs 8. Possible, the slit groove 24 of the central fixing piece 24
A stop piece 25 having a slit groove 25a capable of engaging with a is formed. In FIG. 7, broken lines indicate fold lines.

Here, various embodiments of the spacer using the corrugated paper 4 'will be described with reference to FIG. FIG. 8A shows an example in which the spacer 3 is formed to be the thickest. The leg portions 7 and 8 are bent substantially in an L-shape, and the projections 22a of the outer fixed piece 22 bent substantially at right angles from the top plate 9 are removed. The outer leg 8 is engaged with the slit hole 23. In this case, since the inner leg portions 7 are substantially perpendicular to the top plate portion, the thickness of the spacer 3 can be maximized.
In this case, the vertical load applied to the spacer 3 is supported by the outer fixing piece 22 and the inner leg 7 extending in the vertical direction. FIG. 8B shows an example in which the spacer 3 is configured to be the second thickest. The slits 21 of the outer legs 8 of the legs 7, 8 bent in a V-shape are substantially perpendicular to the top plate 9. The projection 20a of the bent locking claw 20 is engaged. The apex angle of the V-shaped legs 7, 8 is smaller than the apex angle of the V-shaped legs 7, 8 in FIG. FIG. 8C shows an example in which the spacer 3 is configured to be the third thickest. As shown in FIG. 6, the first and second engagement grooves 10 and 11 are formed by the first to third cut pieces 12 to 11. By selectively engaging with the spacer 14, the thickness of the spacer 3 can be changed in three stages. FIG.
(D) is an example in which the spacer 3 is configured to be the thinnest. The inner leg 7 is bent obliquely and the outer leg 8 is bent.
Is almost horizontal. Then, the central fixing piece 24 is bent downward, and the stopper piece 25 is bent upward, so that the slit grooves 24a, 25a of both are engaged.
In this case, although it is most vulnerable to a vertical load, the lower surface of the central fixing piece 24 abuts on the upper surface of the outer leg 8, so that the vertical load can be supported by the central fixing piece 24. Further, since the bent portion of the stopper piece 25 contacts the lower surface of the top plate portion 9, the vertical load can be supported.
Furthermore, since both side edges of the corrugated paper 4 'are in contact with each other, the vertical load can be supported. As described above, in the case of the spacer 3 of this embodiment, the thickness can be changed in six steps.

The present invention is not limited to the above embodiment. In the first embodiment, three cut pieces 12 to 14 are formed for the two engagement grooves 10 and 11, but a larger number of cut pieces may be formed. In addition, an example in which the plurality of cut pieces 12 and 14 are engaged with one engagement groove 10 has been described.
Alternatively, only 14 may be engaged. Further, the cardboard of the present invention is not limited to corrugated cardboard, but may be any cardboard having a predetermined bending rigidity. In the second embodiment, the outer fixing piece 22 is
Although only four pieces were formed, four pieces may be formed at four corners. Similarly, only two locking claws 20 are formed, but four or more locking claws may be formed.

[0024]

As is apparent from the above description, claim 1
According to the invention described in (1), both sides of the cardboard are bent inwardly twice along the fold to form the legs, and the engaging grooves on both side edges are engaged with any of the cut pieces to thereby form the legs. Is prevented, the height of the V-shaped cross section can be changed stepwise, and the thickness of the spacer can be changed. Therefore, even if the number of packaged goods accommodated in the packing box increases or decreases, or the height of the packaged goods changes and the height of the empty space changes, it is sufficient to change the cut pieces that engage the engaging grooves. One type of spacer can cope with a change in the height of the empty space. Further, since the leg portion having the V-shaped cross section has a certain degree of cushioning property against a vertical impact load, it can reduce the shock applied to the packaged product and has a function as a cushioning material. Furthermore, after use, the engagement groove is removed from the cut piece, and the legs are folded back, so that the cardboard can be returned to one piece of cardboard, and the storage space can be reduced. Further, since the spacer is made of cardboard, there is an advantage that the spacer can be reused and recycled.

[Brief description of the drawings]

FIG. 1 is a sectional view of an example of a conventional packing box.

FIG. 2 is a perspective view of a first embodiment of a packing structure according to the present invention.

FIG. 3 is a plan view of corrugated paper for forming a spacer.

FIG. 4 is a partially enlarged view of FIG. 3;

FIG. 5 is an enlarged sectional view taken along line VV of FIG. 2;

FIG. 6 is a plan view and a side view showing each aspect of the spacer.

FIG. 7 is a plan view of a second embodiment of corrugated paper for forming a spacer according to the present invention.

8 is a perspective view and a side view showing each aspect of the spacer using the corrugated paperboard of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packing box 2 Packed goods 3 Spacer 4 Corrugated cardboard 5,6 Fold 7,8 Leg 9 Top plate 10,11 Engagement groove 12-14 Cut piece

Claims (9)

[Claims] 1. A packing spacer for filling an empty space of a packaged product and holding the packaged product, comprising one sheet of substantially rectangular thick paper, two opposite sides of the thick paper parallel to both side edges. Are formed, the outer leg and the inner leg are formed by these folds, the top plate is formed inside the inner fold, and the engagement groove is formed on the outer edge of the outer leg. The top plate portion is formed with a plurality of pairs of cut pieces that can be bent downward in parallel with the fold at different distances from the inner fold, and the outer leg and the inner leg of the cardboard are folded along the fold. By bending inward along along with any of the cut pieces downwardly below the top plate and engaging the engagement grooves with the bent cut pieces, the outer leg and the inner leg To form a V-shaped cross-section leg Packing spacers, characterized in that. 2. The packing spacer according to claim 1, wherein the notch has a tip portion wider than the engagement groove and a base portion narrower than the engagement groove. 3. The engaging groove is formed in the shape of a dovetail groove having a narrow opening and a wide inner portion, and the cutting piece has a tip portion wider than the inner portion of the engaging groove and a base portion formed at a lower portion of the engaging groove. 2. The method according to claim 1, wherein the width of the engagement groove is smaller than the width of the engagement groove.
The packing spacer described in 1. 4. The package according to claim 1, wherein the cut pieces located closer to the inner fold have a higher bending height than the cut pieces located farther away. Spacer. 5. The engagement groove is formed at a plurality of positions on the outer edge of the outer leg portion, and the top plate portion has a plurality of pairs at different distances from the inner fold and at different positions in the width direction. The packing spacer according to any one of claims 1 to 4, wherein a cut piece is formed. 6. The packing spacer according to claim 1 is housed in a packing box, and one or more packing articles are arranged on an upper surface of a top plate portion of the spacer, and the packing spacer is provided in the packing box. A packing structure characterized by being stored. 7. A packing spacer for filling an empty space of a packaged product and holding the packaged product, comprising a single substantially rectangular cardboard, two opposite sides of the cardboard being parallel to both side edges. Folds are formed, an outer leg portion and an inner leg portion are formed by these folds, a top plate portion is formed inside the inner fold, and the top plate portion is bent downward in a direction orthogonal to the folds. A possible outer fixing piece is formed, a protrusion is formed on the inner edge of the outer fixing piece, and a slit hole is formed on the outer leg to engage with the protrusion of the outer fixing piece. The leg section and the inner leg section are bent inward along the fold line, and the outer fixing piece is bent below the top plate section, and the projection of the outer fixing piece is engaged with the slit hole, so that the cross section is formed. Formed by forming a substantially L-shaped leg Packing spacer and said. 8. A packing spacer for filling an empty space of a packaged product and holding the packaged product, comprising one piece of substantially rectangular thick paper, two opposite sides of the thick paper being parallel to both side edges. Folds are formed, an outer leg portion and an inner leg portion are formed by these folds, a top plate portion is formed inside the inner fold, and the top plate portion is bent downward in a direction orthogonal to the folds. A possible locking claw is formed, a projection is formed on an outer edge portion of the locking claw, and a slit hole is formed on the outer leg portion so as to be able to engage with the projection of the locking claw. The leg and the inner leg are bent inward along the fold line, the locking claw is bent downwardly of the top plate, and the projection of the locking claw is engaged with the slit hole, thereby forming a cross section. A packaging sleeve characterized by forming a V-shaped leg. Over service. 9. A packing spacer which fills an empty space of a packaged product and holds the packaged product, which is made of one sheet of substantially square cardboard, and two opposite sides of the cardboard are parallel to both side edges. Folds are formed, the outer legs and the inner legs are formed by these folds, and the top plate is formed inside the inner folds. A central fixing piece that can be bent downward is formed, and a stop piece that can be bent in parallel with the fold is formed at a corner of the outer leg, and the center fixing piece and the stop piece are bent at a right angle. Slit grooves that are engaged with each other are formed, and both sides of the cardboard are sharply bent inward along the inner fold, and the center fixing piece and the slit groove of the stop piece are engaged to fix the center. The lower edge of the piece to the top of the outer leg Packing structure, characterized in that the support was.