JPH0418247A - Folding type tray with partition - Google Patents

Abstract

PURPOSE:To make it possible to build up a tray with partition by bending of sheet material by providing folding lines and cuts on the piece of sheet. CONSTITUTION:On a sheet material A, edge cuts 9, 9, a central cut 10, slits 11, 11, a slit 13, notches 12, 16 - 18 and cut 15 to form a sealing form are provided. While making central partition forming parts 8, 8 at both ends of the sheet A mutually approach, an outer wall forming fold line (a), a bottom forming fold line (b) and a partition forming fold line (c) are respectively bent at a right angle. Confronting outer walls 2, 3 and partitions 4, 4 are respectively stood by themselves by a standing fold line (d), and mutually interfere with central partition forming parts 8, 8, however by the provided notches 12, 16 - 18, a desired tray B for which a central partition C with a cross shape is integrally formed is built up by an almost one-touch process when respective fold lines (a) - (c) have been bent at a perfectly right angle. Since notched parts D are formed at four spots on the outer walls of the tray, when sealing pieces 14 provided on bottom forming parts 7, 7 are bent and stood along the fold line (b) at a right angle, these sealing pieces 14 are fitted in the notched parts D.

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Industrial Application Field) The present invention is intended for use, for example, in storing "strawberries" etc. packed in a transparent plastic container into four packs. This invention relates to a folding tray with partitions suitable for

(Prior art) The conventional tray for the above-mentioned "strawberry pack" is a box-shaped tray made of cardboard, and a separate ten-shaped partition material is fitted into the tray to form four compartments inside the tray. was being formed.

(Problem to be Solved by the Invention) In this way, the method of making the tray and the partition material separately, storing them separately, and combining them when necessary requires two paper processing lines, and also requires two paper processing lines. The extra effort required to attach the material led to an increase in strawberry distribution costs.

Therefore, the object of the invention is to provide a folding system which allows a tray with partitions to be assembled almost in one-touch by simply bending the sheet material by providing appropriate folds and cuts in one sheet material. We provide tatami-style trays with partitions.

A further object of the present invention is to provide a structure in which, even if a notch is formed in the side wall surface of the tray folded up as described above, this notch can be easily sealed. It provides a foldable tray with compartments.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the foldable tray with partitions according to the present invention comprises a rectangular sheet material having a plurality of folds and cuts. It is constructed so that a rectangular parallelepiped tray with a cross-shaped inner partition is folded up by folding the sheet material A, and the center portion in the longitudinal direction of the sheet material A is the main portion 1, and the main portion 1, an outer wall forming part 5.6 which forms one opposing outer wall 2.3 of the tray B and one partition 4 of the cross-shaped inner partition C, and forms the other opposing outer wall of the tray B. , are connected to both outer sides of the main part 1 via outer wall forming folds a, and bottom forming parts 7.7 for forming the bottom of the tray B are provided on both outer sides of the outer wall forming parts S, @. Inner partition forming portions, which are connected to each other via the forming creases and form the other partition of the inner partition C, on both outer sides of the bottom forming portion 7.7, are connected to each other via the partition forming creases C. The main part 1 has edge cuts 9.9 near both ends of the longitudinal direction, and a central cut 11 between them. are arranged parallel to each other.

The center cut 10 and the both edge cuts 3. ! A slit 11.11 of a predetermined width is provided between each of the side outer wall forming portions 5.1i by a predetermined length, and a short slit 11.11 is provided at each end of both slits 11.11. The small slits 13 are arranged in a T-shape, and each end of each of the slits 13 and the cuts at both edges are connected to each other.
A rising crease d is provided connecting each end of the erecting crease d, and as the outer wall forming crease a, the bottom forming crease and the partition forming crease C are bent at right angles in the same direction, the rising crease d is formed. The outer wall 2. erected through d.
3 and the partition 4 and the inner partition forming part 8 interfere with each other, a cut 12. lii～18
In order to seal the notch-like portions formed in the outer wall forming portions 5 and 6 when the sheet material A is folded up into the tray B, the bottom forming portion 7 is provided with a notch-like portion. A sealing piece forming cutout 15 is provided for forming a sealing piece 14 which is fitted into and seals off this portion.

It is preferable that the bottom forming part 1 is provided with a finger hole 23 that facilitates the operation of folding up the sheet material A into the tray B.

The partition forming portion 8.8 is provided with a slip prevention projection 21 that prevents mutual displacement when the trays B are stacked in multiple stages, and an engagement hole for the slip prevention projection 21 is provided in the main portion 1. 2
It is good to provide 2.

(Function) Hold the partition forming portions 8.8 at both ends of the longitudinal direction of the sea 1-A, which have been flattened, with each hand and move them toward each other while forming the outer wall forming crease a and the bottom forming portion. When the creases and partition-forming creases C are bent at right angles, the opposing outer wall 2.3 and partition 4.4, which have been pushed to be sandwiched between both outer wall forming parts 5 and 6, stand up. These parts and the partition forming part 8.8 will be erected on their own through the fold line d, and these parts and the partition forming part 8.8 will interfere with each other, but the notches 12. Since IG-11 is provided, when each of the folds a-C is completely bent at right angles, the desired tray B with the cross-shaped inner partition C integrally folded up almost in one-touch manner.

In this state, notch-like portions are formed at four locations on the outer wall of the tray, so when the sealing piece 14 provided on the bottom forming part 7.1 is bent at right angles along the crease and raised, this sealing piece 14
is fitted into the cutout.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In FIG. 1, which shows the foldable partitioned tray of the present invention unfolded into a single sheet, this sheet material A is
It is made of cardboard and has a rectangular shape, and the one in this example is
The length of the long side is approximately 80 cm, and the length of the short side is approximately 36 cm.

When this sheet material A with the required creases and cuts is folded up into the shape of tray B, a cross-shaped inner partition C is automatically formed inside tray B, as shown in Fig. 2. , its interior is divided into four sections with an old-fashioned layout.

Now, in Fig. 1, the sheet material A has a main part 1 that spans a width of about 24 cm at the center in the longitudinal direction, and this soil part 1.
has the role of forming one opposing outer wall 2 and 3 of tray B and one partition 4 of cross-shaped inner partition C.

S and 6 are outer wall forming parts, which are integrally connected to both sides of the main part 1 via the outer wall forming fold a side, and the receiver has the role of forming the other opposing outer wall of the tray B. The forming folds a, a are provided with rough perforation-like cuts to facilitate folding.

Reference numerals 7 and 7 denote bottom forming portions, which are connected to the outside of each of the outer wall forming portions 5 and 6 via bottom forming folds.

Reference numerals 8.8 and 8.8 denote inner partition forming parts, which are integrally connected to the bottom forming parts 1.7 through partition forming folds C, and have the role of forming the other partition of the cross-shaped inner partition C. have

The main portion 1 is provided with edge cuts 9 and 2 along the entire length near both edges along the longitudinal direction of the sheet material A. Central cuts 1 (l) are provided in the middle, also parallel to the edge cuts 9, alternating along the entire length.

11.11 is a slit of a predetermined width provided between the center cut Ill and each of the edge cuts 9 and 3 in a parallel manner, and both ends of the slit extend over the outer wall forming portion 5.6. It is extended by a predetermined length in a bent state.

Reference numeral 12.12 denotes a notch formed in a cross shape with respect to the slit 11 at the center in the longitudinal direction of each slit 11.11, and its length is approximately half the width of the outer wall forming portion 5.6. .

Reference numeral 13.13 denotes small slits that are connected in a T-shape at both ends of the slits 11.11, and the length thereof is about 175 times the length of the short side of the sheet material A. And each small slit 13
A rising crease d is provided that connects both ends of the edge and the edge cut 3. This upright crease d is created when the sheet material A is folded up into the tray B.
This serves to make the partitions 4 and 4 on one side stand up by themselves. This upright fold d is provided with a cut that reaches halfway through the thickness of the sheet material A from the back side (the back side in the drawing).

14 is a sealing piece, and the bottom forming part 1 has a sealing piece forming cut 15.
When the tray B is assembled as shown in FIG. 2, the outer wall forming portion 5.6
It plays the role of sealing off the notch-like parts that occur in the process.

Therefore, the sealing piece 14 has a sealing portion 14 having a shape similar to the notch-shaped portion. and a rectangular leg portion 14b are arranged in series, the bottom side 14e of the leg portion 14b overlaps the bottom forming crease,
This bottom side 14e is provided with a cut extending from the back side of the sheet material A to the middle of its thickness.

Next, the sheet is inserted into tray B into the partition forming part 8.8.
In the process of folding up the inner partition C, cuts IL17 and 111 which are inserted into each other are respectively provided at locations where the inner partition C interferes with one of the partitions 4.4 and the opposing outer wall 2.3.

And, at the mouth of the notch 17.111, there are 5 pieces of protrusion 1 that close this mouth! On the other hand, the main part 1 is provided with a locking hole 2I into which the protruding piece 19 is inserted when the tray B is folded up.

Also, each cut 12. The openings of lli to 18 are widened in a 7-shape to facilitate mutual insertion.

Reference numeral 21 denotes anti-slip protrusions protruding from two locations on the outer edge of the partition forming portion 8.8, and when trays B are stacked in multiple stages, an engagement hole 22 provided on the bottom surface of the upper tray B is provided. The anti-slip protrusion 21 is inserted into the holder. The rectangular retaining hole 22 is provided along the partition forming crease C.

Reference numeral 23 denotes a finger hole that facilitates the operation of folding up the sheet material A into the tray B, and is provided in the center near the outer end of the bottom forming portion 7.

Next, the operation of the above configuration will be explained.

Sheet material A, which has been punched out as shown in Figure 1 and has creases and cuts at predetermined locations, is placed in tray B as shown in Figure 2.
In order to fold it up into
, 7 in each hand and bend these parts toward each other as shown in FIG. Because both ends are pressed between the outer wall forming parts 5 and 6,
The outer wall forming fold a and the erecting fold 06 are naturally bent in opposite directions, and the opposing fold 2.3 and the partitions 4, 4 are gradually erected vertically.

Then, by bending the outer wall forming crease a, the bottom forming crease, and the partition forming crease C at substantially right angles, the opposing outer wall 2.2 and the notches 12 of the partitions 4, 4, which have finished standing substantially, are bent.
When the notches 16 to 11 of the partition forming portions 7 and 7 are inserted into the sheet material A, the sheet material A is folded up with the toe μB shown in FIG. 2 upside down. During this folding process, the notches 12 and 17. When inserting and fitting III, the one protrusion that was forcibly pushed away is fitted into the locking hole 20 provided in the opposing outer walls 2 and 3.

Therefore, the inner partition forming part 8], the opposing outer walls 2, 3, and the partition 4
4 and 4 are once inserted into each other, this inserted state will not be easily separated.

The situation is shown in Figure 3.

Therefore, even if you put your hand on the edge of tray B containing heavy strawberry packs in each partition and lift it.

There is no fear that the bottom forming part 1 will fall downward.

And, if tray B is folded up like this,
As shown in FIG. 2, inverted trapezoidal notches are formed at two locations on each of the outer wall forming portions 5 and 6.

Therefore, if the sealing pieces 14 provided at four locations on the bottom forming part 7 are bent and stood up along the respective rising creases d, and the sealing parts 148 are pushed into the notch-shaped parts, the sealing parts 14a are cut out. The cut-out portion is tightly fitted onto the inner peripheral surface of the cut-out portion.

Furthermore, when the completed trays B are stacked in several tiers as shown in Fig. 3, the anti-slip protrusion 21 provided on the upper edge of the tray on the lower tier side will move from the engagement provided on the bottom surface of the tray B on the upper tier side. Since the trays B are inserted into the mating holes 22, there is no fear that the trays B in each stage will shift from each other in the lateral direction.

5 and 6 show another embodiment of the present invention, and the difference from the above embodiment is that tray B has four compartments and tray E has two compartments, respectively. It can be easily divided into two parts.

In order to make this division possible, dividing cuts 24 are provided in the sheet driving process from both ends of the central cut 1a toward both side edges of the sheet material A, as shown in FIG. There is. This dividing cut 24 is provided with cut points 25 in a dotted manner here and there.

To explain the operation of this embodiment, the method of folding up tray B from sheet material A is the same as in the above embodiment.

If a customer places only two of the four strawberry bags on tray B lined up at the store, partition 4
．． If you hold both ends of the tray 8 on both sides of the tray 8 and do not apply the force that would break an ice cream with a crease, the tension point 25 of the split-like cut 24 will easily tear apart, as shown in Figure 6. As shown, tray B can be easily divided into two trays E, E.

[Effects of the Invention] The folding type tray with partitions according to the present invention having the above-mentioned configuration has various excellent practical effects as listed below.

a) A folding tray with partitions can be manufactured in one step by simply punching out a single sheet material into the desired shape and making folds and cuts at appropriate locations.

b) Therefore, compared to conventional systems that require separate partitions, there is extremely little material loss, much less manufacturing effort, and the waste of storing partitions separately can be avoided. It also saves you the trouble of assembling.

C) Most of the above sheet materials can be folded up into a tray with one touch.6 d)) The notch-like part that inevitably occurs on the outer wall surface when folded up into a tray is formed in the shape of a cut-out at the bottom of the tray. It can be easily sealed using the sealed sealing piece.

e) Therefore, when packing strawberry packs etc. that have been chilled in advance in a refrigeration facility into a tray, the cold insulation effect of the cardboard tray does not have to be diminished by the presence of the cut-out portion.

Furthermore, for trays that can be divided into two, by printing on the partitions when printing on the sheet material, the printed pattern can also be printed on the dividing surface of the folded-up tray. It is possible to make this happen.

[Brief explanation of the drawing]

1 to 4 show one embodiment of the present invention, and FIG. 1 is a developed view of a sheet material for folding up and forming a tray;
FIG. 2 is a perspective view of the tray, FIG. 3 is a sectional view taken along the line X--X in FIG. 2, and FIG. 4 is an explanatory diagram of the operation of folding up the sheet material into the tray. 5 and 6 show other embodiments of the present invention,
Fig. 5 is a view corresponding to Fig. 1, and Fig. 6 [1] is a side view illustrating the operation of dividing the tray into two. Code Sheet material inner partition main part partition bottom forming part edge cut 1 Slit G, 17.111 Small slit sealing part bottom sealing piece forming cut protrusion piece notch 4b Table B, E) Ray D Notch shaped part 2 .3 Opposing outer wall 5.6 Outer wall forming part 2 Partition forming part 0 Center cut Closing leg latch hole Engagement hole Dividing cut Outer wall forming crease Bottom forming crease Partition forming crease Standing crease 21 Anti-slip protrusion 23 Finger rest Hole 25 Cutting point 2 Figure B Figure 4 Figure 6 ＼1 da D) 14 (D)

Claims (3)

[Claims] (1) A rectangular tray having a cross-shaped inner partition is formed by folding a single rectangular sheet material with a plurality of folds and cuts, and the above-mentioned A central portion in the longitudinal direction of the sheet material A is a main portion 1, and one opposing outer wall 2, 3 of the tray B and one partition 4 of the cross-shaped inner partition C are formed in the main portion 1, Outer wall forming portions 5 and 6 forming the other opposing outer wall of the tray B are connected to both outer sides of the main portion 1 via an outer wall forming fold a, and both outer wall forming portions 5 and 6 , the bottom forming parts 7, 7 forming the bottom of the tray B are connected to each other through the bottom forming fold b, and the other partition of the inner partition C is provided on both outer sides of the bottom forming parts 7, 7. The partition forming portions 8, 8 to be formed are connected to each other through the partition forming crease c, and the main portion 1 has edge cuts 9, 9 near both edges in the longitudinal direction thereof, and A central cut 10 is provided in parallel to each other over the entire length of the main portion 1 in the longitudinal direction, and the outer walls are formed between the center cut 10 and the both edge cuts 9, 9. Slits 11 and 11 of a predetermined width are provided in the parts 5 and 6 by a predetermined length, respectively, and a short small slit 13 is provided in a T-shape at each end of both the slits 11 and 11, each end of each small slit 13 and the both edge cuts 9;
9, and as the outer wall forming crease a, the bottom forming crease b, and the partition forming crease c are bent at right angles in the same direction, the outer wall 2 erected through the fold d;
Cuts 12, 16 to 18 are provided at locations where the partitions 3 and 4 and the partition forming parts 8, 8 interfere with each other to avoid this interference, and when the sheet material A is folded up into the tray B, In order to close off the notch-like portions D formed in the outer wall forming portions 5 and 6, a sealing piece 14 is formed in the bottom forming portion 7 to fit into the notch-like portion D and seal this portion. , a foldable tray with partitions, characterized in that a cut 15 for forming a sealing piece is provided. (2) The folding type partition according to claim 1, characterized in that the bottom forming portion 7 is provided with a finger hole 23 for facilitating the operation of folding up the sheet material A into the tray B. tray. (3) The partition forming portions 8, 8 are provided with anti-slip protrusions 21 to prevent mutual displacement when the trays B are stacked in multiple stages, and the anti-slip protrusions 21 are provided on the main portion 1. 3. The foldable partitioned tray according to claim 1, further comprising an engagement hole 22.