JP6175150B2 - Collective packaging container and laminated body thereof - Google Patents

Description

  The present invention relates to a collective packaging container and a laminate thereof suitable mainly for transporting soft fruits such as strawberries, grapes, cherries, loquats and figs.

Conventionally, soft fruits such as strawberries, grapes, cherries, loquats, figs, etc., are sold in packs of appropriate amounts in trays (thin resin molding containers) according to the sales unit at the retail store.
In consideration of the handling property and transportation cost, it is desirable from the viewpoint of transportation cost that the trays packed with strawberries etc. should be shipped together in multiple units rather than one at a time. . Therefore, a plurality of the above trays are collected and shipped in a collective packaging container such as a cardboard box or a resin container having a larger capacity, and handling such as storage, storage, transportation, etc. in cardboard boxes or containers. Have been able to.

Here, for example, in the case of a packed tray containing strawberries, two or four boxes are stored in a stackable cardboard box, and the cardboard boxes are stacked in two or three stages, then banded, etc. It has been shipped to mass merchandisers (see, for example, Patent Documents 1 and 2).
In addition, a collective packaging container suitable for storing a plurality of the above-described packed trays by attaching a partition material inside the box has also been proposed (see Patent Document 3).
Furthermore, the packaging container is made of a foamed molded article of thermoplastic resin that is notched in the side wall, has a through hole in the bottom plate, and supports the tray in a suspended state with a protruding part formed on the partition part and the inner side of the side wall. Has also been proposed (see Patent Document 4).

Japanese Utility Model Publication No. 58-46739 Japanese Utility Model Publication No. 58-52122 JP 2002-128055 A Japanese Unexamined Patent Publication No. 2015-40050

However, in the case of a cardboard container that is generally used, assembly is necessary, workability is poor, durability is reduced due to condensation during cooling in a refrigerator, etc., and tearing or loss of shape occurs during transportation. There was a case. Also, in the case of a resin container, since it is heavy and hard, workability is also poor and the manufacturing cost is high.
In addition, all of the general collective packaging containers have a structure in which trays packed with strawberries etc. are simply placed on the bottom plate and accommodated, so that strawberries etc. are always gathered across the tray made of thin synthetic resin. Since it is in a state where it is in contact with the bottom plate of the packaging container, vibrations and impacts during transport are easily transmitted directly to the strawberry and the like, and as a result, there is a problem that stored fruits such as the strawberry are damaged quickly.
Moreover, in the collective packaging container for packing 10 packs which consists of the foamed molded object of the thermoplastic resin described in patent document 4, a side wall is made thick in order to endure the load at the time of stacking containers. It was necessary and the length of the long side of the container exceeded 615 mm.
The collective packaging containers as described above are arranged on a pallet without gaps and stacked in a collective packaging container, and many are efficiently palletized and transported. At this time, if the collective packaging container protrudes from the pallet even a little, the collective packaging container is damaged in the process of transporting the pallet. For this reason, it has been a problem to save the space of the collective packaging container while maintaining the capacity.
For example, when transporting using a general-purpose 1200 × 1000 mm size pallet, it is most efficient to stack five stacked packaging containers on each pallet as shown in FIG. When two collective packaging containers are arranged in the longitudinal direction, the end part will jump out of the pallet, and the stacking may become unstable, or the collective packaging container may protrude from the pallet and be easily damaged. there were. On the other hand, in consideration of the damage of the collective packaging container and the like, when the stacking method is arranged with four pallets on each pallet as shown in FIG. The difference was noticeable.

  The present invention has been made in view of the actual situation of the background art described above, and the purpose thereof is light weight without the need for assembly, and for packed trays such as stored strawberries, The purpose of this invention is to propose a collective packaging container that can increase the loading capacity during conveyance and has excellent stacking strength. In particular, in order to efficiently load the collective packaging container on the pallet, it is necessary to shorten the long side of the box, and it is necessary to thin the side wall in order to shorten the long side. However, if the side walls are thinned, the stacking strength of the collective packaging container is lowered, and there is a possibility that multi-stage stacking becomes difficult. An object of the present invention is to propose a collective packaging container which prevents such a decrease in strength of the side wall as much as possible and has excellent stacking strength despite its short length in the long side direction.

In order to solve the above-described problems, the present invention provides a collective packaging container and a laminate thereof described in the following [1] to [ 8 ].
[1] A collective packaging container comprising a substantially rectangular parallelepiped box having an upper surface opened and storing a plurality of trays packed with fruits, wherein the box is formed of a foam molded body, and the foam molded body Is formed of 30 to 80 times styrene resin foamed particle molded body, and the inside of the box is divided into 10 storage chambers by a protrusion supporting the flange of the tray, and the long side of the box The length (L) is 570 to 605 mm, the short side length (W) is 330 to 400 mm, the side wall height (H) is 60 to 90 mm, and the side wall thickness (T) on the short side is 10 to 20 mm. The side wall thickness (t) on the long side is thicker than the side wall thickness (T) on the short side, and the bottom surface of the box is on the inner surface side of the side wall on the short side of the box A stepped portion that rises from the thickness of the stepped portion on the short side (d The ratio (T / d) of the side wall thickness (T) to 0.3 to 0.9, and the ratio (h / H) of the step height (h) to the side wall height (H) 0.4 to 0.8, and the step is formed over the entire width of the short side wall so that at least the step supports the flange portion of the tray packed with fruits. A collective packaging container characterized by being formed.
[2] The collective packaging according to [1], wherein a stepped portion rising from the bottom surface of the box is provided also on the inner surface side of the long side wall of the four corners of the box. container.
[3] The long side step is formed from the four corners to the long side protrusion closest to the four corners, the long side step and the short side step, The collective packaging container according to [2] above, wherein the two are connected to each other.
[4] A notch recess serving as a handle is formed near the center of the outer side of the side wall on the short side, and the upper surface of the stepped portion is formed at a position higher than the upper end of the notch recess. The collective packaging container according to any one of the above [1] to [3], wherein
[5] The tray packed with the fruit packs strawberries whose length between the end portions of the flange portion is about 165 mm, the width is about 115 mm, and the height from the lower end of the flange portion to the lower end of the bottom is about 36 mm. The above-mentioned [1] to [4], wherein the tray is a stuffing tray, and the inside of the box is divided into ten storage chambers by the protrusion so as to store ten trays. The collective packaging container according to any one of the above.
[6] The collective packaging container according to any one of [1] to [5], wherein a concave groove is formed at an appropriate position on the upper surface of the stepped portion.
[7] Engagement protrusions are formed on the upper side walls of the four corner portions of the box, and engagement recesses are formed on the bottom surfaces of the side walls of the four corner portions of the box. The collective packaging container according to any one of the above [ 1 ] to [6], wherein
[8] A collective packaging container laminate in which a plurality of the collective packaging containers according to [1] to [7] are stacked in the vertical direction .

According to the above-described collective packaging container according to the present invention, since the length of the long side of the box is formed to be 570 to 605 mm, the load capacity during transportation can be increased, and transportation cost can be reduced. it can. Further, since the side walls of the short sides of the box body is provided with a stepped portion that rises from the box bottom, the side walls are reinforced, stable when stacked can support the load, breakage of the set package Is unlikely to occur. Moreover, since it is integrally formed with the foam molded article, it is not necessary to assemble and is lightweight, and the packaging workability is good. Further, the protrusion and / or step is formed to support and hold the flange portion of the tray packed with soft fruits such as strawberries, grapes, loquat, cherries, figs, etc. It is difficult for the impact to be directly transmitted to the fruit, the damage of the fruit can be prevented as much as possible, the flow of cold air is good, and the cooling efficiency is high.

It is the figure which showed one Embodiment of the collective packaging container which concerns on this invention, Comprising: (a) is a top view, (b) is a right view. It is a figure of the container shown in FIG. 1, Comprising: (a) is a bottom view, (b) is a front view. It is the perspective view which looked at the container shown in FIG.1 and FIG.2 from upper direction. It is the perspective view which looked at the container shown in FIG.1 and FIG.2 from the downward direction. It is a figure of the container shown in Drawing 1 and Drawing 2, (a) is a sectional view of the portion which meets an AA line of Drawing 1 (a), and (b) is a BB line of Drawing 1 (a). FIG. FIGS. 3A and 3B are views of the container shown in FIGS. 1 and 2, wherein FIG. 1A is a cross-sectional view taken along line CC in FIG. 1A, and FIG. 1B is a line DD in FIG. FIG. It is the figure which showed the state which accommodated the strawberry packing tray in the container shown in FIG.1 and FIG.2, Comprising: (a) is a top view, (b) follows the EE line | wire of Fig.7 (a). It is sectional drawing of a part. It is the side view which showed the state which accumulated the container shown in FIG.1 and FIG.2 in multiple stages. It is the conceptual perspective view which showed an example of the state which loaded the collective packaging container on the pallet in multiple stages. It is the conceptual perspective view which showed the other example of the state which loaded the collective packaging container on the pallet in multiple stages.

  Hereinafter, embodiments of the collective packaging container according to the present invention will be described in detail based on the drawings. In the illustrated embodiment of the collective packaging container according to the present invention, the front view and the rear view are the same, so the rear view is omitted, and the right side view and the left side view are also the same, so the left side view is omitted. Showed.

  The illustrated collective packaging container according to the present invention can store 10 packed trays of strawberries. This collective packaging container 1 is a shallow box having a substantially rectangular parallelepiped shape with an open top surface, a long side length (L) of 570 to 615 mm, and a short side length (W) of 330 to 400 mm, The protrusion part which divides an inside consists of a foamed particle molded object of the thermoplastic resin formed integrally with the baseplate. When the length (L) of the long side exceeds 615 mm, the load amount during transportation when pallet stacking is reduced, and the transportation cost is increased. From the above viewpoint, the length (L) of the long side is preferably 580 to 610 mm, more preferably 590 to 605 mm, and most preferably 595 to 603 mm. On the other hand, the short side length (W) is preferably 340 to 390 mm, and more preferably 350 to 380 mm. The short side length (W) and the long side length (L) measure the outer dimensions of the collective packaging container.

  On the side wall 2 constituting the box, two substantially rectangular ventilation portions 3 are formed on the long side wall 2a and one on the short side wall 2b. The opening ratio of all the ventilation portions 3 with respect to all the side walls 2 is preferably 10 to 60%, more preferably 15 to 50%, more preferably 17 to 50% from the balance between the cooling efficiency and the strength as the side walls. 30% is particularly preferred. Further, a notch recess 4 serving as a handle is formed in the vicinity of the center on the outer surface side of the side wall 2b on the short side, and the upper end of the side wall 2a on the long side is located at two corresponding positions. A shallow recess 5 is formed as a mark for hooking the band.

  The interior of the box is divided into ten storage chambers by the protrusions 6. The protrusions 6 are intermittently formed inside the box in consideration of cooling efficiency, and include eight T-shaped protrusions 6a in a top view formed on the inner surface side of the side wall 2a on the long side. The strawberry packed tray T as shown in FIG. 7 is formed by four protrusions 6b formed in a cross shape in a top view formed side by side at the center in the short direction. The corner portion of the flange portion F is supported and stored and held in the container 1. At this time, it is preferable to store and hold the tray T in the container 1 in a suspended state (a state where the bottom surface of the tray does not contact the bottom plate). Protrusions 7 for preventing the deviation of the tray T are formed on the upper ends of the protrusions 6 respectively.

Steps 8b rising from the bottom surface are provided on the inner surface side of the side wall 2b on the short side of the four corners of the box. By forming the stepped portion 8b, the side wall becomes thick, so when the containers are stacked, a load is applied to the four corner portions, and bending stress and compressive stress are concentrated on the side wall portion, and the side wall is deformed. This can be prevented. Moreover, it is preferable from a viewpoint of intensity | strength that the step part 8b by the side of a short side is respectively formed over the full width of the side wall 2b of this short side. Further, the step portion 8b is formed so as to support the flange portion F of the packed tray T of strawberry stored as shown in FIG. 7 by the step portion 8b and the protruding portion 6, and the tray T is preferably stored and held in the container 1 in a suspended state (a state where the bottom surface of the tray does not contact the bottom plate). Therefore, the step portion 8 has two roles of reinforcing the side wall and holding the strawberry packed tray so that the strength of the box can be maintained while shortening the length of the long side. Become.
The step 8 may be provided on the side wall on the short side of the four corners of the box where the load is concentrated when stacked, but the step 8a is provided on the side wall 2a on the long side. If so, it is preferable because the strength of the side wall can be further reinforced. Further, it is preferable from the viewpoint of strength that the long side stepped portion 8a is formed up to the portion reaching the T-shaped protrusion 6a that is closest to the four corner portions. In this case, it is preferable that the long-side step 8a and the short-side step 8b are connected to each other.

  Moreover, it is preferable that the step part 8c is formed also along the inner surface side part of the side wall 2a on the long side where the ventilation part 3 is not formed. The side wall can also be reinforced by forming the stepped portion 8c at a portion other than the four corners. When stacked, the side wall portion on the long side is easily deformed to bend downward due to a load. When the amount of deformation increases, the engagement protrusions 13 and the engagement recesses 14 described later are engaged. Although there is a possibility that the load collapses due to detachment, the step portion 8c can suppress this deformation.

  When the tray T is supported by the stepped portion 8 and the protruding portion 6 described above, it is preferable to support at the four corners of the flange portion F of the tray. This is because if the film is supported in the vicinity of the center of the tray flange, the film will be supported by the tray through the film protecting the fruit. Because there is. In order to prevent this, a concave groove 9 is formed at an appropriate position on the upper end surface of the step portion 8, particularly at a position where the center portion of the flange portion of the tray contacts, and the vicinity of the center of the tray flange portion is in contact with the step portion It is preferable not to do so. In addition, it is preferable that the depth of the ditch | groove 9 is 3-8 mm.

  Further, two arc-shaped notches 10 into which fingers can be inserted are formed on the inner surface side of the portion where the ventilation portion 3 is formed on the side wall 2a on the long side, and the notches 10 are used. Then, the finger is inserted, the flange portion F of the tray T stored and held in a suspended state is picked, and the tray T can be easily taken out from the container 1.

  The side wall height (H) of the box is preferably 60 to 90 mm, and more preferably 70 to 85 mm. If it is within the above range, the stacked trays T can be handled without contact with the bottom plate or with the stored fruit coming into contact with the bottom of the upper container when the containers are stacked while maintaining the stacking strength of the collective packaging container. It will be excellent.

The ratio (h / H) of the step height (h) to the side wall height (H) is preferably 0.4 to 0.8, and preferably 0.5 to 0.7. Is more preferable, and it is still more preferable that it is 0.55-0.65. If this ratio (h / H) is within the above range, the strength of the side wall is further improved while holding the tray, and the stackability is excellent.
Further, as described above, the notch recess 4 serving as a handle is formed in the vicinity of the center on the outer surface side of the side wall 2b on the short side, but when the notch recess 4 is formed, the short side There is a possibility that the side wall of the film becomes thin and the strength is lowered. Even in such a case, when the step 8b on the short side is formed over the entire width of the short side, the reduction in the side wall thickness of the notched portion is compensated by the step 8b to reduce the strength. Can be prevented. From such a viewpoint, it is preferable that the upper surface of the stepped portion 8b is formed up to a position higher than the upper end of the notch recess. Therefore, the ratio (i / h) of the height (i) of the notched recess 4 to the height (h) of the stepped portion is preferably 0.5 to 0.9, and 0.7 to 0 More preferably, it is .8. By having the above relationship, the reduction in the thickness of the side wall due to notching to form the handle portion on the side wall can be compensated for by forming the stepped portion, and the side wall strength on the short side can be improved.
The side wall height (H), step height (h), and notch recess height (i) refer to the height from the upper surface of the container bottom plate. Further, when a concave groove is formed in the step portion, the height excluding this portion is defined as the height (h) of the step portion.

  Further, the thickness (d) of the step portions 8a, 8b and 8c formed to protrude to the inner surface side of the side wall is formed to be thicker than the side wall thickness (T) on the short side, and is 13 mm or more. More preferably, it is 14-34 mm, More preferably, it is 15-32 mm. If it is in the said range, the intensity | strength of a side wall can be raised, hold | maintaining the flange part of a tray. Further, the ratio (T / d) of the side wall thickness (T) of the portion where the step portion is not formed to the thickness (d) of the step portion in the side wall where the step portion is formed is 0.3 to 0.00. 9 is preferable, 0.4 to 0.8 is more preferable, and 0.5 to 0.7 is still more preferable. Further, the total length of the step portions 8a, 8b and 8c is preferably 30 to 100%, more preferably 50 to 100%, with respect to the total length of the upper surface of the portion of the container side wall where the ventilation portion 3 is not provided. Further preferred. In addition, the thickness (d) of a step part measures the thickness of the side wall of the part used as 1/2 of the height from the upper surface of a baseplate to the upper surface of a step part. However, the location where the notch recess 4 is not formed is measured.

The side wall thickness of the box is preferably formed such that the side wall thickness (t) on the long side is larger than the side wall thickness (T) on the short side, thereby allowing the length (L) of the long side of the box to be increased. While being able to make it as short as possible, the intensity | strength as a box can be improved. Specifically, the side wall thickness (t) on the long side is preferably 15 to 30 mm, and more preferably 17 to 25 mm. The side wall thickness (T) on the short side is preferably 10 to 20 mm, and more preferably 13 to 17 mm. The difference (t−T) between the side wall thickness (T) on the short side and the side wall thickness (t) on the long side is preferably 2 mm or more.
In addition, side wall thickness (T) and (t) shall measure the thickness of the part in which a step part does not exist. Specifically, the thickness of the portion of the side wall where the step portion is not provided is ½ height from the lower end of the portion is measured. However, the location where the ventilation part 3 is not formed is measured.

  A through hole 12 for ventilation is formed in the bottom plate 11 constituting the box. The through holes 12 are arranged on the bottom plate of the portion divided by the projecting portion 6, and are formed one by one and a total of ten in consideration of cooling efficiency. The through-hole 12 has a quadrangular shape, and preferably has a length of 110 to 140 mm and a width of 60 to 90 mm, and more preferably a length of 110 to 120 mm and a width of 60 to 75 mm in consideration of the strength of the bottom plate and cooling efficiency. . The thickness of the bottom plate is preferably 5 to 20 mm from the standpoint of buffering properties, the strength as the bottom plate, and the raw material filling property at the time of molding. Further, by enlarging the through hole 12 formed in the bottom plate, a part of the bottom of the stored tray T can be supported while being inserted into the through hole 12 without being in contact with the through hole 12. In addition, the protruding portion 6 and the stepped portion 8 that support the tray T can be designed to be low, the strength of the container can be improved, and space saving during storage and transportation can be achieved.

  L-shaped engagement protrusions 13 are formed on the upper surface of the side walls of the four corner portions of the box, and the rear view L that engages the engagement protrusions 13 on the bottom surfaces of the side walls of the four corner portions of the box. Each of the character-shaped engaging recesses 14 is formed. Then, by engaging the engaging protrusions 13 of the lower container 1 with the engaging recesses 14 of the upper container 1, the containers 1 can be stably stacked in multiple stages as shown in FIG.

The lengths of the outer peripheral edges of the L-shaped engagement protrusions 13 are each preferably 40 mm or more. If it is in the said range, fitting of an upper and lower box will become sufficient, and a collective packaging container can be laminated | stacked, without a box shifting | deviating or a strength falling. Further, the height of the engaging protrusion 13 is preferably 2 to 30 mm, more preferably 5 to 20 mm, and particularly preferably 8 to 15 mm. If it is the said range, engagement is enough, when a box is piled up, there is no shift | offset | difference of an upper and lower box, and the intensity | strength of protrusion itself falls and it does not become easy to chip.
In addition, in the long side side wall and the short side wall portion around the four corners of the box, two incisions with a width equal to or greater than the thickness of the eight side walls in total are formed at two positions from each corner. can do. In this case, stacking height (stackability) can be improved by placing two boxes facing each other and stacking the boxes slightly shifted so that the side wall fits into the cut. Also in this case, if the step portion is formed, strength reduction due to the formation of the notch can be suppressed.

  Since the above-mentioned shallow recess 5 is formed on the upper end of the side wall 2 constituting the box body as a mark for hooking the band P, two or three containers are stacked, and the shallow recess for hooking the above-described band P is formed. 5 can be used for banding and transportation. The length of the recess 5 is preferably 1 to 80 mm, more preferably 2 to 50 mm, and particularly preferably 3 to 40 mm. Within the above range, the receiving area does not decrease. The depth of the recess is preferably 0.3 to 5 mm, more preferably 0.5 to 3 mm, and particularly preferably 0.5 to 2 mm. If it is the said range, it will become the thing excellent in the handleability.

  Although there is no restriction | limiting in the thermoplastic resin which comprises the assembly packaging container based on this invention of an above-described structure, For example, styrene resin, such as rubber-modified polystyrene and polystyrene, olefin resin, such as polyethylene resin and polypropylene resin, etc. General-purpose resins are exemplified, and among these, styrene-based resins are preferable because they are easily foamed and have high rigidity. Further, as the form of the foamed molded article, the above-mentioned complicated shape or a large-sized container can be easily produced, and therefore, a foamed particle molded body in which foamed particles are filled in a mold and heat-molded is preferable. . The foamed particle molded body is prepared by, for example, impregnating resin particles with a foaming agent to produce foamable resin particles, foaming the foamable resin particles to obtain foamed particles, and placing the foamed particles in a mold having a predetermined shape. It can be obtained by filling in a mold, heating with steam or the like, and fusing the foamed particles and molding in a mold.

When the collective packaging container of the present invention is composed of a styrene-based resin expanded particle molded body, the expansion ratio is preferably 30 to 80 times, more preferably 40 to 70 times, and more preferably 50 to 60 times. It is particularly preferable that the ratio is double. If it is in the said range, while being excellent in a buffer property and cushioning properties, it is excellent also in compression resistance and shape retention property, and becomes an excellent collective packaging container for loading. In particular, in the case of 50 to 60 times molded polystyrene resin foam particles, the bending strength is about 20 to 40 N / cm ² and the compressive strength (10% strain compressive strength) is 10 to 30 N / cm ^2. Therefore, even when the collective packaging containers are stacked about 20 levels, it becomes easy to obtain a container having sufficient strength and suitable for transportation on a pallet.

Examples of the collective packaging container of the present invention will be described in detail below. The collective packaging container 1 according to this example has outer dimensions of a long side length (L) of 600 mm, a short side length (W) of 380 mm, and a height (H) of 85 mm. Moreover, the side wall thickness (t) on the long side is 20 mm, the side wall thickness (T) on the short side is 16 mm, and the thickness of the bottom plate is 15 mm. Further, the inside of the box is divided into ten sections by the protrusions 6. And the height (h) rising from the upper surface of the bottom plate of the box (h) 45 mm, the thickness (d) (step part including the side wall) 28 mm (T / T) on the side walls on the long and short sides of the four corners of the box Steps 8a and 8b of d = 0.57) are provided. Further, the step 8b on the short side is formed over the entire width of the short side wall, and the groove 9 is recessed about 5 mm from the height of the step at the place where the central portion of the flange portion of the tray contacts. Formed.
Further, a notch recess 4 cut out from the bottom side is formed on the outer surface of the side wall on the side wall 2b on the short side. The height (i) of the notch recess is 15 mm from the upper surface of the bottom plate, and is formed at a position lower than the upper surface of the stepped portion. On the other hand, the ventilation part 3 is formed in the side wall 2a on the long side, and it is formed in two places excluding the central part in the length direction of the long side wall. 18%. Further, the step 8c having the above-described height and thickness is formed along the inner surface side of the side wall portion where the ventilation portion is not provided. The bottom plate 11 is formed with a through hole 12 for ventilation in a tray storage portion partitioned by the protruding portion 6, and the opening ratio is 33%. Engagement protrusions 13 having a length of 92 mm and a height of 8 mm are respectively formed on the upper surface of the side wall of the four corner portions, and the rear surface that engages with the engagement protrusion 13 is formed on the bottom surface of the side wall of the four corner portions. Engagement recesses 14 having an L-shape length of 95 mm and a depth of 9 mm are formed.
In addition, as a tray which has a flange part which can be accommodated in the division partitioned off by the protrusion part 6, there exists a tray which packs the strawberry currently distribute | circulated in Tochigi Prefecture. The shape of the tray is such that the length between the end portions of the flange portion is about 165 mm, the width is about 115 mm, and the height from the lower end of the flange portion to the lower end of the bottom is about 36 mm. When this tray is stored in a compartment, if the flange portion is supported by the protruding portion 6 or the protruding portion 6 and the step portion 8, the bottom of the tray does not contact the bottom plate of the box and is held in a suspended state. The

When the above-mentioned collective packaging containers 1 are arranged on a 1200 × 1000 mm pallet, 10 trays containing strawberries (300 g) are stored and stacked in 20 layers, the lowermost collective storage container has a load of about 60 kg. However, the collective packaging container was not damaged.
On the other hand, although the step portion is not formed, the collective packaging container is similarly stacked except that the side wall thickness is reduced and the long side length (L) is 600 mm. In this case, the corners of the four corners of the collective packaging container were damaged.

In order to stack five stacked packaging containers side by side on the general-purpose 1200 × 1000 mm standard pallet described above, the length of the long side must be shortened to about 600 mm. In addition, since there is a standard for the size of the tray packed with fruits, a partition that separates the side walls and box of the collective packaging container in order to shorten the long side with 10 trays in the collective packaging container. It is necessary to form a thin projection or the like that acts as a portion and supports the flange portion of the tray. On the other hand, if the side wall of the collective packaging container is made thin, the stacking strength is insufficient and the collective packaging container itself is crushed and the fruits in the tray are damaged, so it is not possible to stack in multiple stages. You will have to reduce the height (number of steps).
Therefore, in the collective packaging container according to the present invention described above, in particular, the length of the long side must be shortened while maintaining the stacking strength of the container by making the four corner structures have specific shapes. , Can resolve conflicting purposes.

  The embodiment of the collective packaging container according to the present invention has been described above. However, the present invention is not limited to the embodiment described above, and the scope of the technical idea of the present invention described in the claims. Of course, it is possible to provide an embodiment in which various modifications are made.

  The above-described collective packaging container according to the present invention is light in weight without the need for assembly, and can be loaded with a large amount of packed strawberries or the like, and can hardly be directly transmitted to vibrations and shocks. Since it has a high cooling efficiency at the time of cooling, it can be suitably used for transporting soft fruits such as strawberries, grapes, cherries, loquats and figs.

DESCRIPTION OF SYMBOLS 1 Collective packaging container 2 Side wall 2a Long side wall 2b Short side wall 3 Ventilation part 4 Notch recessed part used as a handle 5 Shallow recessed part used as a mark for hooking a band 6 Protruding part 6a T-shaped protruding part 6b Projection for cross-shaped top view 7 Protrusion for preventing tray misalignment 8 Step 8a Step on the long side wall 8b Step on the short side wall 8c Step on the side wall without vents 9 Concave groove 10 Finger Arc-shaped notch 11 that can be inserted 11 Bottom plate 12 Venting through hole 13 Engaging projection 14 Engaging recess T Strawberry packed tray F Tray flange P Band

Claims (8)

  A collective packaging container comprising a substantially rectangular parallelepiped box having an upper surface opened and storing a plurality of trays packed with fruits, wherein the box is formed of a foam molded body, and the foam molded body is 30 to It is formed of 80 times styrene resin foamed particle molded body, and the inside of the box is divided into 10 storage chambers by the protrusions that support the flange of the tray, and the length of the long side of the box (L) is 570 to 605 mm, the short side length (W) is 330 to 400 mm, the side wall height (H) is 60 to 90 mm, and the short side wall thickness (T) is 10 to 20 mm. The side wall thickness (t) on the long side is thicker than the side wall thickness (T) on the short side, and a step rising from the bottom surface of the box on the inner surface side of the side wall on the short side of the box Part is provided, and the thickness (d) of the step part on the short side is The ratio (T / d) of the side wall thickness (T) is 0.3 to 0.9, and the ratio (h / H) of the height (h) of the step portion to the side wall height (H) 0.4 to 0.8, and the step is formed over the entire width of the short side wall so that at least the step supports the flange portion of the tray packed with fruits. A collective packaging container characterized by being formed.   2. The collective packaging container according to claim 1, wherein a stepped portion rising from the bottom surface of the box is provided also on the inner surface side of the long side wall of the four corners of the box.   The step part on the long side is formed from the four corners to the projecting part on the long side closest to the four corners, and the step on the long side and the step on the short side are connected to each other. The collective packaging container according to claim 2, which is formed.   A notch recess serving as a handle is formed near the center of the outer side of the side wall on the short side, and the upper surface of the stepped portion is formed at a position higher than the upper end of the notch recess. The collective packaging container according to any one of claims 1 to 3, wherein   The tray packed with the fruit is packed with strawberries whose length between the end portions of the flange portion is about 165 mm, the width is about 115 mm, and the height from the lower end of the flange portion to the lower end of the bottom portion is about 36 mm. The assembly according to any one of claims 1 to 4, wherein the inside of the box is divided into 10 storage chambers by the protrusions so as to store 10 trays. Packaging container.   The collective packaging container according to any one of claims 1 to 5, wherein a concave groove is formed at an appropriate position on the upper surface of the stepped portion. An engagement projection is formed on the upper surface of the side wall of the four corners of the box, and an engagement recess is formed on the bottom of the side wall of the four corners of the box. The collective packaging container according to any one of claims 1 to 6. A collective packaging container laminate comprising a plurality of the collective packaging containers according to claim 1 stacked in the vertical direction .

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