JP2024063418A - Tray for collective packaging - Google Patents

Abstract

To provide a tray for collective packaging which partitions articles by a partition, and transports and stores them, which has excellent stability in a stacked state, and in which deformation by a load hardly occurs.SOLUTION: A tray for collective packaging includes a bottom member 1, and a beam partition 3 and a girder partition 4 which are crossed with each other and engaged. In the bottom member 1, end partitions 12 rise from both sides of a bottom plate 11, the beam partition 3 is in parallel with the end partition 12, and an end part of the girder partition 4 is engaged with the end partition 12. The bottom plate 11 of the bottom member 1 projects to both lateral sides from the end partition 12, the bottom plate 11 and the end partition 12 are continued via a side support part 13, and the side support part 13 is inclined to the inside from the bottom plate 11 toward the end partition 12. Thereby, when oscillating sideways in a stacked state, a load is dispersed and transmitted from the upper stage side to the lower stage side in a balanced manner by the bottom plate 11 projecting from the end partition 12 of the bottom member 1 and the side support part 13 inclined to the inside from the bottom plate 11 to the end partition 12.SELECTED DRAWING: Figure 7

Description

This invention relates to a collective packaging tray for dividing up and transporting/storing industrial products and other items.

The following Patent Document 1 describes a partition assembly that is installed inside a box. This partition assembly is made up of interlocking partitions that cross each other and an outer frame that surrounds them, with the ends of the partitions fixed to the outer frame. However, no special consideration is given to the stacking strength in the packed state in which items are stored in the storage space divided by the partitions, as this depends on the box.

As shown in Figure 9, a tray for collective packaging is used that is made of cardboard and has a bottom member 51 and beam partitions 52 and girder partitions 53 that intersect and interlock with each other.

The bottom member 51 of this collective packaging tray has end partitions 55 standing at right angles from both sides of the bottom plate 54, beam partitions 52 extending in a direction parallel to the end partitions 55, and ends of girder partitions 53 intersect and engage with the end partitions 55. The end partitions 55 completely overlap the beam partitions 52 located at both ends from the bottom to the top.

Registered Utility Model No. 3171196

However, in the case of collective packaging trays such as those described above, when heavy machine parts or the like are stored and stacked in multiple tiers, if the upper and lower tiers become misaligned due to lateral shaking during transportation, the load acts unevenly from the upper tier to the lower tier, and there is a risk that the end partition 55 located at the end, the beam partition 52 overlapping it, and the adjacent parts will be deformed and crushed.

Therefore, the objective of this invention is to provide a tray for collective packaging that is highly stable when stacked and is less likely to deform under load.

In order to solve the above problems, the present invention provides a collective packaging tray comprising a bottom member having end partitions standing on both sides of a bottom plate, and beam partitions and girder partitions which intersect and engage with each other, the beam partitions being parallel to the end partitions, and ends of the girder partitions engaging with the end partitions,
The bottom plate of the bottom member protrudes out to both sides from the end partitions, the bottom plate and the end partitions are connected via side supports, and the side supports are inclined inward from the bottom plate toward the end partitions.

The boundary between the bottom plate and the end partition is a cut-off portion between the multiple side support members, and a leg portion that abuts against the bottom plate is formed on the portion of the end partition facing the cut-off portion.

In addition, a support member with horizontal ribs formed by bending is placed on the bottom plate, and the ribs of the support member are oriented in a direction parallel to the end partitions and the beam partitions, and the ribs intersect and engage with the girder partitions.

In the collective packaging tray of this invention, when the trays sway sideways while stacked, the load is distributed and transmitted in a well-balanced manner from the upper to lower levels by the bottom plate that protrudes from the end partition of the bottom member and the side supports that are inclined inward from the bottom plate toward the end partition, so deformation of the parts located at the ends is suppressed and the stability of the stacked state is not compromised.

FIG. 1 is a perspective view showing a collective packaging tray according to an embodiment of the present invention; FIG. FIG. 1 shows a blank of the floor member of the same embodiment. FIG. 13 shows a blank of the receiving member of the same embodiment. FIG. 1 shows the blank for the beam partition. A diagram showing the blank for the girder partition of the same FIG. FIG. 13 is an enlarged perspective view showing an end portion of the stacked state of the above. FIG. 1 is a perspective view showing a conventional collective packaging tray;

＜Overview＞
As shown in Figures 1 and 2, this collective packaging tray is made of corrugated cardboard and is configured by combining a bottom member 1, a support member 2, a beam partition 3, and a girder partition 4. The corrugated cardboard has a liner laminated on a corrugated corrugated core, and the strength in the corrugation direction where the corrugated tops of the core extend is greater than the strength in other directions.

<Blank>
(Bottom member)
The bottom member 1 shown as a blank in Figure 3 is made of A-flute corrugated cardboard, with end partitions 12 connected to the short sides on both sides of a rectangular bottom plate 11 extending in the corrugation direction, and multiple side supports 13 interposed between the bottom plate 11 and the end partitions 12 on both sides. A fold line a consisting of a crease and a cut is made at the boundary between the bottom plate 11 and the side supports 13, and a fold line b consisting of a crease and a cut is made at the boundary between the side supports 13 on both ends and the end partitions 12.

The boundary between the bottom plate 11 and the end partition 12 is a cut-off portion 14 between the side support portions 13, and a leg portion 15 is formed on the portion of the end partition 12 facing the cut-off portion 14.

Five interlocking grooves 16 are cut from the leading edge of each of the end partitions 12 on both ends of the bottom plate 11. The bottom plate 11 also has grooves 17 for preventing stacking misalignment, which are connected to the separation section 14 and correspond to the three intermediate grooves 16.

(Receiving member)
Five blank support members 2 shown in Fig. 4 are prepared, each made of A-flute corrugated cardboard, with a pair of ribs 21 of a length corresponding to the short side of the bottom plate 11 of the bottom member 1 connected via a connecting portion 22, and a crease c formed by a pressed crease is provided at the boundary between the ribs 21 and the connecting portion 22. The corrugation direction extends in the connecting direction between the ribs 21 and the connecting portion 22.

Two parallel fold lines d consisting of creases and cuts are made in the parts that will become the ribs 21, and five interlocking grooves 23 that intersect with the two fold lines d and correspond to the cut grooves 16 in the bottom member 1. There are also fitting holes 24 for fitting the items to be packed, and push-in pieces 25 that enlarge the fitting holes 24 to fit the items.

(Beam partition)
There are two types of beam partitions 3 shown in FIG. 5: four beam partitions 3a made of AB flute cardboard, and two beam partitions 3b made of A flute cardboard.

The beam partitions 3a and 3b are of the same dimensions and are horizontal strips that correspond to the short sides of the bottom plate 11 of the bottom member 1, and five interlocking grooves 31 are cut from the upper horizontal edge to correspond to the grooves 16 of the bottom member 1. The step direction of the beam partitions 3a and 3b is oriented vertically.

(Beam partition)
The girder partitions 4 shown in FIG. 6 are also of two types: three girder partitions 4a made of AB flute cardboard, and two girder partitions 4b made of A flute cardboard.

The girder partitions 4a and 4b each have a length corresponding to the long side of the bottom plate 11 of the bottom member 1. The girder partition 4a is a single horizontal strip, while the girder partition 4b is a pair of horizontal strips connected together via a fold line e cut partway through the thickness direction. The steps of the girder partitions 4a and 4b are oriented vertically.

The girder partition 4a has six interlocking grooves 41 cut from the lower horizontal edge to correspond to the beam partition 3, and two short interlocking grooves 42 between each of the grooves 41 to correspond to the grooves 23 of the receiving member 2. In addition, protrusions 43 are provided at both ends of the upper horizontal edge to prevent stacking from shifting.

The girder partition 4b has grooves 41 and 42 cut from the horizontal edge that becomes the lower end when folded along the fold line e, just like the girder partition 4a.

The grooves 41 of the girder partitions 4a and 4b engage with the grooves 31 of the beam partition 3 as well as the grooves 23 of the receiving member 2, and the width of the portion that engages with the grooves 23 of the receiving member 2 is wider than the width of the portion that only engages with the grooves 31 of the beam partition 3.

<Assembly from blank>
2, to assemble the collective packaging tray, the blank of the bottom member 1 is mountain-folded along the crease line a in the direction that makes the surface convex, and valley-folded along the crease line b in the direction that makes the surface concave, so that the bottom plate 11 protrudes to both sides from the end partitions 12, the end partitions 12 stand upright relative to the bottom plate 11, and the side supports 13 are inclined inward from the bottom plate 11 toward the end partitions 12. At this time, the legs 15 of the end partitions 12 abut against the bottom plate 11.

The five blanks of the receiving member 2 are each folded in a valley along the crease line c and in a mountain along the crease line d, and assembled into a shape in which the two ribs 21 with their bottoms open are connected via the connecting portion 22.

The beam partition 3 and the girder partition 4 are interlocked in a lattice pattern by inserting the cut grooves 31 and 41 into each other. At this time, the beam partition 3 is arranged in parallel with the beam partition 3b as the outermost beam partition, and the girder partition 4 is arranged in parallel with the girder partition 4b folded in half along the fold line e as the outermost beam partition, and the girder partition 4a and 4b are arranged in parallel.

Furthermore, the support members 2 are arranged so that the ribs 21 are parallel, the beam partition 3a is sandwiched between the ribs 21 of adjacent support members 2, and the ribs 21 and the girder partition 4 intersect, and the support members 2 and the girder partition 4 are engaged by inserting the cut grooves 23, 42 into each other.

Then, the support member 2 is placed on the top surface of the bottom plate 11 so that the end partition 12 of the bottom member 1 and the beam partition 3 are parallel, the beam partition 3b is aligned with the inner surface of the end partition 12, and the groove 16 of the end partition 12 and the groove 41 closest to the end of the girder partition 4 are inserted into each other, and the end of the girder partition 4 is engaged with the end partition 12. As a result, the bottom member 1, support member 2, beam partition 3, and girder partition 4 are integrated as shown in Figure 1, and a collective packaging tray is completed.

<Effects when stacked>
The above-mentioned collective packaging tray stores items such as mechanical parts in a storage space partitioned by beam partitions 3 and girder partitions 4, and when stacked in multiple layers with the same orientation as shown in Figures 7 and 8, the beam partitions 3 and girder partitions 4, which cross in a lattice pattern, receive the stacking load, and the legs 15 of the end partitions 12 abut against the bottom plate 11, making it possible to withstand a large stacking load.

In addition, the protrusion 43 of the lower tier partition 4 engages with the groove 17 of the upper tier bottom member 1, preventing the upper and lower tiers from shifting when stacked.

Beam partition 3 and girder partition 4 are made of AB flute double-sided corrugated cardboard for the intermediate beam partition 3a and girder partition 4a, with the outer beam partition 3b overlapping the end partition 12 and the girder partition 4b folded in half along crease line e, which equalizes the pressure resistance of the lattice structure.

When the stacked piles sway sideways in this manner, the load is distributed and transmitted in a well-balanced manner from the upper to lower levels by the bottom plate 11 that protrudes from the end partition 12 of the bottom member 1 and the side support parts 13 that are inclined inward from the bottom plate 11 toward the end partition 12, suppressing deformation of the parts located at the ends and preventing a loss of stability in the stacked piles.

＜Other＞
In the above embodiment, a collective packing tray used for transporting and storing heavy items such as machine parts is exemplified, but if the items to be stored are relatively light, the receiving member 2 may be omitted. Also, the type of cardboard used as the material may be changed.

In addition, while the above example shows a collective packaging tray made of cardboard, depending on the items to be stored and the environment in which it will be transported and stored, the collective packaging tray according to this invention may be made of plastic cardboard with a hollow structure, or may be made of paperboard or plastic sheet material with a non-hollow structure.

REFERENCE SIGNS LIST 1 bottom member 2 receiving member 3, 3a, 3b beam partition 4, 4a, 4b girder partition 11 bottom plate 12 end partition 13 side support portion 14 separation portion 15 leg portion 16, 17 groove 21 rib 22 connecting portion 23 groove 24 fitting hole 25 push-in piece 31 groove 41, 42 groove 43 protrusion a, b, c, d, e fold line

Claims (3)

A collective packaging tray comprising a bottom member (1) having end partitions (12) standing on both sides of a bottom plate (11), a beam partition (3) and a girder partition (4) which intersect and engage with each other, the beam partition (3) being parallel to the end partition (12), and an end of the girder partition (4) engaging with the end partition (12),
A collective packaging tray characterized in that a bottom plate (11) of the bottom member (1) protrudes outward on both sides from end partitions (12), the bottom plate (11) and the end partitions (12) are connected via side support portions (13), and the side support portions (13) are inclined inward from the bottom plate (11) toward the end partitions (12). The collective packaging tray according to claim 1, characterized in that the boundary between the bottom plate (11) and the end partition (12) is a cut-off portion (14) between the multiple side support portions (13), and a leg portion (15) that abuts against the bottom plate (11) is formed in the portion of the end partition (12) facing the cut-off portion (14). The collective packaging tray according to claim 1 or 2, characterized in that a support member (2) having horizontal ribs (21) formed by bending is placed on the bottom plate (11), the ribs (21) of the support member (2) are oriented in a direction parallel to the end partitions (12) and the beam partitions (3), and the ribs (21) intersect and engage with the girder partitions (4).

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