JP6501875B2 - Package - Google Patents

Description

  The present invention relates to a package for protecting a package such as an outdoor unit of an air conditioner.

A package such as an outdoor unit of an air conditioner is packaged as follows.
First, the package is placed on a tray box in which a buffer material such as polystyrene foam is stored in a tray-like cardboard box. Next, an upper cushioning material such as expanded polystyrene is placed on the top of the package. And the corrugated cardboard for exteriors which the bottom face opened is covered on the to-be-packaged body in which the top shock absorbing material was placed from the top, and a binding band is wound.

JP, 2006-282258, A

As described above, when packaging an object such as an outdoor unit of an air conditioner, the binding band is tightened in order to prevent the loosening and detachment of the binding band due to violent load handling and the like. Then, the tightly bound binding band may bite into the top surface side corner of the exterior corrugated cardboard.
An object of the present invention is to prevent a binding band from biting into a corner.

The package according to the present invention is
A peripheral wall having a pair of first side walls facing each other and a pair of second side walls facing each other, the one end side being open,
An inner flap provided at the one end of each first side wall;
An outer flap provided on the one end side of each second side wall;
And a pair of protrusions projecting from both side ends of the inner flap,
When the inner flap and the outer flap are sequentially closed, the opening on the one end side of the peripheral wall is closed in a state where each protrusion abuts on the second side wall.

  According to the present invention, the protrusions projecting from the opposite ends of the inner flap abut the second side wall when the inner flap is closed. If the binding band is wound around the portion where the projecting portion is disposed, the corner portion is reinforced by the projecting portion, so that the binding band can be prevented from biting into the corner portion.

FIG. 2 is an exploded perspective view of the package 10 according to the first embodiment. FIG. 1 is a perspective view of a package 10 according to a first embodiment. FIG. 2 is a development view of the exterior corrugated cardboard 20 of the package 10 according to the first embodiment. The perspective view in the state where both flaps of corrugated cardboard 20 for exteriors of package 10 concerning Embodiment 1 were opened. The perspective view in the state where the outside flap 25 of corrugated cardboard 20 for exteriors of package 10 concerning Embodiment 1 was opened. The perspective view in the state where both flaps of corrugated cardboard 20 for exteriors of package 10 concerning Embodiment 1 were closed. FIG. 2 is a plan view of the exterior corrugated cardboard 20 of the package 10 according to the first embodiment. FIG. 2 is a partial cross-sectional view of the exterior corrugated cardboard 20 of the package 10 according to the first embodiment. FIG. 2 is a partial cross-sectional view of the exterior corrugated cardboard 20 of the package 10 according to the first embodiment. 5 is a development view of the exterior corrugated cardboard 20 of the package 10 according to Embodiment 2. FIG. FIG. 10 is a plan view of the exterior corrugated cardboard 20 of the package 10 according to the second embodiment. FIG. 16 is a partial cross-sectional view of the exterior corrugated cardboard 20 of the package 10 according to the second embodiment. FIG. 16 is a developed view of the exterior corrugated cardboard 20 of the package 10 according to the third embodiment. FIG. 14 is a plan view of the exterior corrugated cardboard 20 of the package 10 according to the third embodiment. FIG. 16 is a partial cross-sectional view of the exterior corrugated cardboard 20 of the package 10 according to the third embodiment.

Embodiment 1
*** Description of the configuration ***
The structure of the package 10 which concerns on Embodiment 1 is demonstrated based on FIG.1 and FIG.2.
As shown in FIG. 1, the package 10 includes an exterior corrugated cardboard 20, a tray box 30, an upper cushioning material 40, and a binding band 50.
The bottom surface of the exterior corrugated cardboard 20 is open, and the top surface is closed by the inner flaps 24 and the outer flaps 25. The tray box 30 contains a lower cushioning material 32 formed of a buffer material such as expanded polystyrene in a tray-like cardboard box 31. The upper cushioning material 40 is formed of a cushioning material such as expanded polystyrene. The binding band 50 is a band of 12 to 20 mm in width made of polypropylene.

  As shown in FIG. 1, the outdoor unit 100 of the air conditioner, which is a packaged body, is placed on the tray box 30, and the upper cushioning material 40 is placed thereon. Then, the corrugated cardboard 20 for exterior is put on the outdoor unit 100 on which the upper cushioning material 40 is placed, and the binding band 50 is wound. Thereby, as shown in FIG. 2, the outdoor unit 100 is in the state of being packaged by the packaging body 10.

The configuration of the exterior corrugated cardboard 20 according to the first embodiment will be described based on FIGS. 3 to 8.
As shown in FIG. 3, the exterior corrugated cardboard 20 includes a peripheral wall 23 having a pair of first side walls 21 and a pair of second side walls 22. Here, the first side wall 21 is narrower than the second side wall 22. The exterior corrugated cardboard 20 includes an inner flap 24 connected to the top surface side of each first side wall 21 and an outer flap 25 connected to the top surface side of each second side wall 22. The outer flaps 25 are butt flaps whose tips abut each other when closed. The cardboard 20 for exteriors is provided with the junction part 26 for joining the edge parts of the surrounding wall 23. Here, the bonding portion 26 is provided at the side end of the second side wall 22.
Each of the inner flaps 24 is provided with a pair of projecting portions 27 projecting from both side ends. Here, the protrusion 27 is rectangular. On the other hand, each outer flap 25 is provided with a notch 28 at a position corresponding to the protrusion 27. The notch 28 is a rectangle of the same size as the protrusion 27 or a rectangle larger than the protrusion 27.
In each first side wall 21, a handle hole 29 is opened for a worker to put a hand on.

As shown in FIG. 4, the exterior corrugated cardboard 20 is bent between the first side wall 21 and the second side wall 22 to form the joint portion 26 provided at the side end of the second side wall 22 as the first side wall. Fix it on the inner wall of the side end of 21. As a result, the pair of first side walls 21 face each other, and the pair of second side walls 22 face each other. At this time, the inner flaps 24 and the outer flaps 25 are open, and the top side of the exterior corrugated cardboard 20 is open.
As shown in FIG. 5, after each inner flap 24 is closed, each outer flap 25 is closed as shown in FIG. As a result, the opening on the top surface side of the exterior corrugated cardboard 20 is closed, and the exterior corrugated cardboard 20 has a rectangular shape with the bottom opened.

As shown in FIG. 7, the tip-to-tip width A1 of the pair of protrusions 27 is slightly larger than the width B1 of the first side wall 21. The width B1 of the first side wall 21 is slightly wider than the width C1 of the inner flap 24. That is, the protrusion dimension a1 of the protrusion 27 is slightly larger than the dimension c1 (= (B1-C1) / 2) between the end of the first side wall 21 and the end of the inner flap 24.
As shown in FIG. 6, when the inner flaps 24 are closed and the outer flaps 25 are closed, the inner flaps 24 and the protrusions 27 are pressed from above by the outer flaps 25. Then, as shown in FIG. 8, since the material of the exterior corrugated cardboard 20 is corrugated cardboard, the first side wall 21 is slightly bent, and the tip end of the protrusion 27 is in contact with the upper end of the second side wall 22. . That is, the protrusion 27 pushes the second side wall 22 from the inside to the outside, and becomes in a stretched state.

  The binding band 50 is wound so as to pass through the outside of the portion of the second side wall 22 where the tip end of the protrusion 27 abuts.

Here, if the protrusion dimension a1 of the protrusion 27 is too large, the outer flap 25 is closed, and when the inner flap 24 and the protrusion 27 are pressed, the protrusion 27 may be bent. On the other hand, if the protrusion dimension a1 of the protrusion 27 is too small, even if the inner flap 24 and the outer flap 25 are closed, the protrusion 27 will not be in a tensioned state.
Therefore, it is desirable that the projecting dimension a1 of the projecting portion 27 be approximately twice the thickness of the corrugated board constituting the corrugated cardboard 20 for exterior. Specifically, it is desirable that the protrusion dimension a1 of the protrusion 27 be approximately 10 to 16 mm.

When the width dimension b1 of the protrusion 27 is too large, the outer flap 25 is closed, and when the inner flap 24 and the protrusion 27 are pressed down, the protrusion 27 is bent and the inner side of the second side wall 22 is made. It becomes difficult to enter. As a result, the workability becomes worse. On the other hand, when the width dimension b1 of the protrusion 27 is too small, it is difficult to wind the binding band 50 so as to pass through the outside of the portion where the tip of the protrusion 27 abuts.
Therefore, it is desirable that the width dimension b1 of the projecting portion 27 be about 2 to 5 times the width of the binding band 50. Specifically, the width dimension b1 of the projecting portion 27 is desirably about 30 to 100 mm.

  In FIGS. 2 to 7, an area 60 indicates the direction of the center of a corrugated cardboard constituting the exterior corrugated cardboard 20. As shown in FIG. 5 and FIG. 7, the direction of the core of the cardboard is in the direction orthogonal to the projecting direction of the protrusion 27. That is, the direction of the core of the cardboard is perpendicular to the direction in which the binding band 50 applies a shear stress to the exterior cardboard 20.

*** Effect of Embodiment 1 ***
As described above, the package 10 according to the first embodiment is provided with the pair of protrusions 27 on each of the inner flaps 24 of the exterior corrugated cardboard 20, and when the inner flap 24 and the outer flap 25 are closed, each protrusion is The tip of the portion 27 is in contact with the second side wall 22. Then, the binding band 50 is wound so as to pass through the outside of the portion of the second side wall 22 where the tip end of the protrusion 27 abuts.
Even if the binding band 50 is tightly wound, the top surface side corner portion of the exterior corrugated cardboard 20 is reinforced by the projecting portion 27, so that the binding band 50 can be prevented from biting into the exterior corrugated cardboard 20. That is, when the binding band 50 clamps the top surface side corner part from the outside to the inside, the protruding part 27 stretches from the inside to the outside, so that the binding band 50 can be prevented from biting into the exterior corrugated cardboard 20.

  In addition, when the tightening of the binding band 50 is tight, the protrusion 27 may be bent. However, as shown in FIG. 9, even if it is bent, the tip end of the protrusion 27 is kept in contact with the first side wall 21 to keep the binding band 50 from biting into the exterior corrugated cardboard 20.

The package 10 which concerns on Embodiment 1 is reinforced with the protrusion part 27 provided in the inner flap 24, without preparing another components. Therefore, it is possible to reinforce at low cost with a simple configuration.
In particular, it is possible to provide the notch 28 in the part corresponding to the protrusion part 27 of the outer flap 25, and to cut out from the corrugated-cardboard of 1 sheet, and to manufacture the corrugated-cardboard 20 for exteriors. Even if the notch 28 is provided, since the notch 28 is not formed in the portion to which the force of the binding band 50 is applied, it does not lead to a special decrease in strength. In addition, the notch 28 does not cause a special decrease in workability.

  The direction of the core of the cardboard is perpendicular to the direction in which the binding band 50 shears the exterior cardboard 20. As a result, the exterior corrugated cardboard 20 is less likely to be torn by the force received from the binding band 50.

In the above description, the inner flap 24 is connected to the narrow first side wall 21, and the outer flap 25 is connected to the wide second side wall 22. However, conversely, the inner flap 24 may be connected to the wide second side wall 22 and the outer flap 25 may be connected to the narrow first side wall 21. Then, the protrusion 27 may be formed on the inner flap 24 connected to the wide second side wall 22.
The first side wall 21 and the second side wall 22 may have the same width.

  Further, in the above description, each inner flap 24 is provided with only one pair of projecting portions 27. However, each inner flap 24 may be provided with a plurality of pairs of projecting portions 27.

  Further, in the above description, the protrusion 27 is rectangular. However, the protrusion 27 may have another shape such as a trapezoidal shape.

In addition, the upper cushioning material 40 positioned below the protrusion 27 when the outdoor unit 100 is packaged may also have a protrusion shape corresponding to the protrusion 27. Thereby, it is possible to further increase the reinforcement strength.
Instead of providing the projecting portion 27 on the first side wall 21, it is possible to obtain the effect of preventing the binding band 50 from biting by merely providing the upper buffer material 40 with a projecting shape. However, in this case, it is desirable that the material of the upper cushioning material 40 is not a brittle material such as expanded polystyrene, and can be used as a cushioning material while having a certain degree of strength.

Further, in the above description, the binding band 50 has a width of 12 to 20 mm. However, the width of the binding band 50 does not have to be limited to 12 to 20 mm.
However, as the width of the binding band 50 is narrower, the tightening pressure of the binding band 50 applied to the top surface side corner portion of the binding band 50 becomes larger. Therefore, the binding band 50 can easily bite into the exterior corrugated cardboard 20. Therefore, when using a band having a width smaller than 12 mm as the binding band 50, it is necessary to sufficiently reinforce the top surface side corner portion of the exterior corrugated cardboard 20.
On the other hand, as the width of the binding band 50 is wider, the tightening pressure of the binding band 50 applied to the top surface side corner of the binding band 50 is smaller. Therefore, the binding band 50 hardly bites into the exterior corrugated cardboard 20. However, bands wider than 20 mm are not widely used, and may increase costs.

Second Embodiment
The package 10 according to the second embodiment differs from the first embodiment in that the protrusion 27 has a bent shape. In the second embodiment, this difference will be described.

The configuration of the exterior corrugated cardboard 20 according to the second embodiment will be described based on FIGS. 10 to 12.
As shown in FIG. 10, the projecting portion 27 is formed with a bent portion 271. The bent portion 271 is a ruled line parallel to the surface of the second side wall 22. The ruled line is a fold line in which the steps are crushed so that the cardboard can be easily folded.
The projecting portion 27 is bent at a right angle at the bending portion 271 so that the tip is directed downward when the inner flap 24 is closed.
In a state where the projecting portion 27 is bent at the bending portion 271, the inner flap 24 is closed and the outer flap 25 is closed, and the opening on the top surface side of the exterior corrugated cardboard 20 is closed.

As shown in FIG. 11, the width D2 between the bent portions 271 of the pair of protrusions 27 is slightly larger than the width B2 of the first side wall 21. The width B2 of the first side wall 21 is slightly wider than the width C2 of the inner flap 24. That is, the projection dimension d2 of the projection 27 to the bent portion 271 is slightly larger than the dimension c2 (= (B2-C2) / 2) between the end of the first side wall 21 and the end of the inner flap 24. . Further, a protrusion dimension a2 to the tip of the protrusion 27 is about twice as large as a protrusion dimension d2 to the bent portion 271.
When the inner flaps 24 are closed and the outer flaps 25 are closed, the inner flaps 24 and the protrusions 27 are pressed by the outer flaps 25 from above. Then, as shown in FIG. 12, the first side wall 21 is slightly bent, and the bent tip end side surface of the protrusion 27 comes in contact with the vicinity of the upper end of the second side wall 22.

  Here, the protrusion dimension d2 to the bent portion 271 is approximately the same as the protrusion dimension a1 for the same reason as the protrusion dimension a1 according to the first embodiment. Further, the width dimension b2 of the projecting portion 27 is substantially the same as the width dimension b1 of the projecting portion 27 according to the first embodiment.

*** Effect of Embodiment 2 ***
As described above, in the packaging body 10 according to the second embodiment, when the projecting portion 27 is bent and the inner flap 24 and the outer flap 25 are closed, the bent front surface is the second side wall. It will be in the state which contacted 22. And the binding band 50 is wound so that the surface by the side of the tip of the projection part 27 in the 2nd side wall 22 may pass through the outside of the portion which contacted.
Even if the binding band 50 is tightly wound, the top surface side corner portion of the exterior corrugated cardboard 20 is reinforced by the protruding portion 27, so that the binding band 50 can be prevented from being bitten.

  In particular, unlike the first embodiment, since the protrusion 27 abuts the second side wall 22 in a plane, the reinforcement strength can be increased.

  The bending portion 271 may be configured not by one ruled line formed at the bending position but by a plurality of ruled lines formed near the bending position. However, if the number of creases is too large, the strength against tightening of the binding band 50 may be weakened. Therefore, it is desirable to determine the number of creases in consideration of both the strength against tightening of the binding band 50 and the efficiency of the bending operation.

Third Embodiment
The package 10 according to the third embodiment differs from the first and second embodiments in that the protrusion 27 has a shape in which the protrusion 27 is folded back. In the third embodiment, this difference will be described.

The configuration of the exterior corrugated cardboard 20 according to the third embodiment will be described based on FIGS. 13 to 15.
As shown in FIG. 13, the protruding portion 27 is formed with a folded portion 272. The folded back portion 272 is a ruled line parallel to the surface of the second side wall 22. The projecting portion 27 is folded back 180 degrees at the folding portion 272.
With the projecting portion 27 folded back at the folded back portion 272, the inner flap 24 is closed and the outer flap 25 is closed, and the opening on the top surface side of the exterior corrugated cardboard 20 is closed.

As shown in FIG. 14, the width D3 between the folded portions 272 of the pair of protrusions 27 is slightly larger than the width B3 of the first side wall 21. The width B3 of the first side wall 21 is slightly wider than the width C3 of the inner flap 24. That is, the projection dimension d3 of the projection 27 up to the folding back portion 272 is slightly larger than the dimension c3 (= (B3-C3) / 2) between the end of the first sidewall 21 and the end of the inner flap 24 . Further, a protrusion dimension a3 to the tip of the protrusion 27 is about twice as large as a protrusion dimension d3 to the folded portion 272.
When the inner flaps 24 are closed and the outer flaps 25 are closed, the inner flaps 24 and the protrusions 27 are pressed by the outer flaps 25 from above. Then, as shown in FIG. 15, the first side wall 21 is slightly bent, and the folded back portion 272 of the protrusion 27 is in contact with the vicinity of the upper end of the second side wall 22.

  Here, the protrusion dimension d3 to the folded portion 272 is approximately the same as the protrusion dimension a1 for the same reason as the protrusion dimension a1 according to the first embodiment. Further, the width dimension b3 of the protrusion 27 is substantially the same as the width dimension b1 of the protrusion 27 according to the first embodiment.

*** Effect of Embodiment 3 ***
As described above, in the package 10 according to the third embodiment, the protruding portion 27 is folded back, and the folded portion 272 contacts the second side wall 22 when the inner flap 24 and the outer flap 25 are closed. It will be in a state of And the binding band 50 is wound so that the surface by the side of the tip of the projection part 27 in the 2nd side wall 22 may pass through the outside of the portion which contacted.
Even if the binding band 50 is tightly wound, the top surface side corner portion of the exterior corrugated cardboard 20 is reinforced by the protruding portion 27, so that the binding band 50 can be prevented from being bitten.

  In particular, unlike the first embodiment, since the protrusion 27 is folded back and doubled, the reinforcement strength can be increased.

  As shown in FIG. 15, a groove 41 may be formed on the top surface side of the upper cushioning material 40 in which the bent end of the protrusion 27 fits. Thereby, it is possible to prevent the top surface side from being bulged by folding the protrusion 27. As a result, when the packaging body 10 in which the packaged objects are packaged is stacked in storage and transportation, it is possible to avoid an unstable state due to the swelling made on the top surface side.

  Further, in the above description, the protrusion 27 is folded back downward. However, the protrusion 27 may be folded upward.

  In addition, the folded back portion 272 may be configured not by one ruled line formed at the bending position but by a plurality of ruled lines formed near the bending position. However, if the number of creases is too large, the strength against tightening of the binding band 50 may be weakened. Therefore, it is desirable to determine the number of creases in consideration of both the strength against tightening of the binding band 50 and the efficiency of the folding operation.

  DESCRIPTION OF SYMBOLS 10 Package body, 20 Corrugated cardboard, 21 1st side wall, 22 2nd side wall, 23 surrounding wall, 24 inner flap, 25 outer flap, 26 joint part, 27 protrusion part, 271 bending part, 272 folding part, 28 notch, 29 hand holes, 30 tray boxes, 31 cardboard boxes, 32 lower shock absorbers, 40 upper shock absorbers, 41 grooves, 50 tie bands, 100 outdoor units.

Claims (7)

A peripheral wall having a pair of first side walls facing each other and a pair of second side walls facing each other, the one end side being open,
An inner flap provided at the one end of each first side wall;
A pair of protrusions projecting from both side ends of the inner flap;
An outer flap provided on the one end side of each second side wall and provided with a notch having a size equal to or larger than that of each projecting portion at a position corresponding to each projecting portion;
When the inner flap and the outer flap are sequentially closed, the opening on the one end side of the peripheral wall is closed in a state where the respective projecting parts abut on the second side wall ,
Wherein in a state where the opening is blocked at one end, packaging each projecting portion in the second side wall is that the binding band is wound so as to pass through the outer contact portion. The package according to claim 1, wherein each of the protrusions comes into contact with the second side wall when the inner flaps and the outer flaps are closed. The package according to claim 1, wherein each of the protrusions is bent halfway, and when the inner flap and the outer flap are closed, the bent tip side surface comes in contact with the second side wall. body. The package according to claim 3, wherein each of the protrusions is bent so that a tip thereof is directed downward. 2. The package according to claim 1, wherein each of the protrusions is folded halfway, and when the inner flap and the outer flap are closed, the folded portion abuts on the second side wall. The package according to any one of claims 1 to 5, wherein each of the protrusions is provided at the same distance from the tip of the inner flap. The package according to any one of claims 1 to 6, wherein the package is a cardboard.

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