JPH07223642A - Carton for stacking up - Google Patents

Abstract

PURPOSE:To prevent cartons on upper tiers from slipping when the cartons are stacked up, and to ensure stable stacking. CONSTITUTION:A carton for stacking is formed by surrounding a bottom plate with a pair of side plates 2 and 3 and a pair of gable-end plates 4 and 5. Supporting plates 15, 16, 17 and 18 are connected to the ends on the right and the left of crosspieces 11 and 12 provided on the upper ends of the gable-end plates 4 and 5, and holding pieces 19, 20, 21 and 22 are provided to the supporting plates 15, 16, 17 and 18 on the sides where the supporting plates 15, 16, 17 and 18 are connected to the crosspieces 11 and 12. Notches 27, 28, 29 and 30 corresponding to the holding pieces 19, 20, 21 and 22 are formed to the supporting plates 15, 16, 17 and 18 on the ends opposite to the holding pieces 19, 20, 21 and 22. Then, the supporting plates 15, 16, 17 and 18 are put and fixed to the outside of the side plates 2 and 3. When the cartons are stacked up, the notches 27, 28, 29 and 30 of the carton on the upper tier are fitted over and fixed to the holding pieces 19, 20, 21 and 22 of the carton on the lower tier.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates generally to a box with a shallow bottom, which is often used to store a plurality of packs of vegetables and fruits such as strawberries and grapes. The present invention relates to a paper box that can maintain a stable stacked state without being displaced when it is used.

[0002]

2. Description of the Related Art Conventionally, as a paper box of this type, for example, the one disclosed in Japanese Utility Model Publication No. 32575/1990 is known. This box is a "packing box for stacking" and is shown in FIG.
As shown in Fig. 5, a holding plate b is continuously provided on the upper edges of both side plates a, and support plates c are provided on both sides of the holding plate b. When stacked, the bottom of the upper packaging box is the same as that of the lower packaging box. The holding plate b is sandwiched inside, the holding plate b is fitted between the support plates c, and the edges of the supporting plate c and the holding plate b face each other, so that the left and right movement of the stacked packaging boxes is restricted. The stable loading state is obtained.

However, in such a structure, since the pressing plate is formed on the upper edge of the side plate, if the stacking is carried out as it is, the side plate will be placed on the pressing plate, and it cannot be stacked. Therefore, when stacking boxes, it is necessary to push the holding plate outwards, but this reduces the efficiency of the stacking work, and since the holding plates are pushed outward, the strength decreases. There was a risk that the function of preventing the box from slipping could not be fully exerted. Further, when the weight of the upper box is light, there is a risk that the upper box is lifted by the restoring force of the pressing plate and the upper and lower boxes are disengaged.

In order to solve this problem, for example, as disclosed in Japanese Utility Model Publication No. 1-20276 shown in FIG. 9, a holding plate e is provided at the upper end of a side plate d inclined outward. Things have been proposed. However, in this case, since the side plate d is inclined, the strength of the entire box is lowered, and the lower box may be crushed by the weight of the upper box (including contents) when stacked.

[0005]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art and prevents the upper boxes from shifting to the left and right when the paper boxes are stacked and used, and the upper and lower boxes are engaged with each other. There is no need to forcibly deform and fit the members, the side plate of the box does not tilt, the side plate of the box stands upright, the strength of the box can be maintained, and a stable loading state is always maintained. It is an object to provide the obtained paper box.

[0006]

In order to solve the above problems, the first invention is a paper box having a pair of side plates and a pair of end plates around a bottom plate, and is provided at the upper ends of the end plates. Support plates are continuously provided at both left and right ends of the cross plate, and a locking piece is attached to the side of the continuous connection of the support plate with the cross plate, and the end of the support plate opposite to the locking piece is A cutout portion corresponding to the locking piece is formed, and the supporting plate is fixed on the outside of the side plate,
Provided is a stacked paper box in which, when the paper boxes are stacked, the cutout portion of the upper paper box is fitted and locked on the locking piece of the lower paper box.

A second aspect of the present invention is a paper box having a pair of side plates and a pair of end plates around a bottom plate, wherein support plates are connected to both left and right ends of a cross plate provided at the upper ends of both end plates. A locking piece is provided on the end of the support plate that is continuous with the crosspiece, and a notch corresponding to the locking piece is formed at the end of the support plate opposite to the locking piece. A second support plate having a height equal to that of the side plate is continuously provided next to the cutout portion, and the support plate and the second support plate are fixed on the outside of the side plate to fix the paper box. Provided is a stacked paper box in which, when stacked, the cutout portion of the upper paper box is fitted and locked onto the locking piece of the lower paper box.

[0008]

According to the first aspect of the present invention, the stacking paper box is assembled by facing the crosspiece plate to the bottom plate, covering the outside of the side plate with the support plate, and then fixing it to the side plate. When stacking vertically, the notch of the upper paper box is placed on the locking piece of the lower paper box.

According to the second aspect of the present invention, the stacking paper box is assembled by facing the cross plate to the bottom plate, covering the outside of the side plate with the supporting plate and the second supporting plate, and then fixing to the side plate. . When stacking vertically, the notch of the upper paper box is placed on the locking piece of the lower paper box.

[0010]

EXAMPLES The present invention will be described in detail below with reference to examples shown in FIGS.

<First Embodiment> In this embodiment, a corrugated board having a thickness of about 3 mm is used. 1 to 4 show a stacking paper box of the present embodiment, and like the blanks shown in FIG. 4, a rectangular plate in which a bottom plate 1 is provided with a pair of side plates 2 and 3 and a pair of end plates 4 and 5 in series. It is a paper box with a shallow bottom.

The side plates 2 and 3 are provided with folding pieces 6, 7, 8 and 9 on the left and right respectively. Attached plate members 10A and 10B are connected to the upper ends of both gable plates 4 and 5, and these bottom plate 1, side plates 2 and 3, gable plates 4,5, and attached plate member 1 are attached.
The blanks composed of 0A and 10B are fitted in a roughly rectangular shape only with a slightly inserting piece to be described later.

The attached plate members 10A and 10B are crosspieces 11 and 12 on which the upper paper boxes are placed when they are stacked, partition plates 13 and 14 used separately from the paper boxes, and crosspieces 11 and 1.
A support plate 15 for fixing 2 to face the bottom plate 1,
It is composed of 16, 17, and 18.

Of these, the crosspieces 11 and 12 have the same width as the bottom plate 1 and are connected to the end plates 4 and 5 so as to face the bottom plate 1, and the partition plates 13 and 14 are partially broken lines L1 and L2. The cross-sections L1 and L2 are connected to the cross plate, and the partial break lines L1 and L2 are formed so that the cross plates 11 and 12 form a corner. Slits 13A and 14A are formed at the free ends of the partition plates 13 and 14 to combine them into a cross shape.

[0015] Support plates 15, 16, 17, at the respective ends, straddling both the crosspieces 11, 12 and the partition plates 13, 14.
18 are arranged in series, and support plates 15, 16, 17, 18 are provided.
The end portions of the rails 11 and 12 connected to each other are mountain fold lines L3, L4, L
5, L6, and the connecting ends of the support plates 15, 16, 17, 18 with the partition plates 13, 14 are cut lines m1, m2.
It is separated by m3 and m4. The connecting end of the support plate with the partition plate is set to a position projecting from the connecting end with the cross plate and has a height higher than that of the side plates 6, 7, 8, 9. The locking pieces 19, 20, 21, 22 are configured.

Insertion pieces 23, 24, 25, 26 are attached to the free ends of the support plates 15, 16, 17, 18, and at the positions corresponding to the locking pieces 19, 20, 21, 22, respectively.
Notches 27, 2 having a width slightly wider than the width of the locking piece
8, 29, 30 are formed. Insertion holes 32, 33, 34 and 35 are formed at positions corresponding to the insertion pieces 23, 24, 25 and 26 at the bases of the side plates 2 and 3. The supporting plate can be directly attached to the side plate without providing the engaging means by the insertion piece and the insertion hole as in the present embodiment, and the present invention also includes such an example.

Further, in order to improve the air permeability of the inside when vegetables and fruits are stored, several ventilation holes 31 are opened at arbitrary positions of the side plate, the gable plate and the support plate.

In order to assemble a blank having such a construction into a paper box, first, the side plates are raised from the bottom plate, the folding pieces are bent at right angles to the side plates, and the gable plates are raised outside the folding pieces. Then, the crosspiece is opposed to the bottom plate, and the supporting plate covers the outside of the side plate, and the insertion piece is inserted and fixed in the insertion hole (see FIG. 1). Then, the partition plate is separated from the paper box along a partly broken line.

When stacking a plurality of stacked paper boxes thus formed, as shown in FIG. 2, the cutout portions 27, 28 of the upper paper box are placed on the locking pieces 19, 20, 21, 22 of the lower paper box. , 29, 30 are positioned so that the bottom plate 1 of the upper paper box is placed on the crosspieces 11, 12 of the lower paper box.

The paper boxes of the present embodiment stacked in this way have the support plates 15 and 1 positioned outside the side plates 2 and 3.
Locking pieces 19, 20, 21, attached to 6, 17, 18
22 and the notches 27, 28, 29, 30 are engaged with each other, so that the engaging pieces need not be forced to be spread outward during stacking and can be engaged smoothly.

Further, the engaging pieces (20 and 22) or (19 and 21) and the notches (28 and 30) or (2).
7 and 29) are formed on the support plates (16 and 18) or (15 and 17) connected to the pair of cross plates 11 and 12, respectively, so that they are engaged in two lateral positions. The paper box can be prevented from shifting to the left and right and the locking piece (19
And 20) or (21 and 22) and notch (27 and 2)
8) or (29 and 30) is a support plate (15 and 16) or (17 and 1) connected to both ends of the crosspieces 11 and 12, respectively.
Since it is formed in 8), it is engaged in two positions in the front-rear direction, and it is possible to prevent the paper box from shifting in the front-rear direction.

Further, since the partition plates 13 and 14 are configured as the accessory plate members 10A and 10B, there is an advantage that the waste of paper taking can be minimized.

Further, the insertion pieces 23, 24, 25, 26
Bend inward and insert holes 32, 33, 34, 35
And is engaged vertically with the side plate 2, the locking pieces 19, 20, 21, 22,
Does not turn up or lift up even if it comes into contact with the end faces of the support plates 15, 16, 17, and 18. Further, since they are fixed by inserting them, there is an advantage that no adhesive is required at the time of box making and assembly / disposal is easy.

<Second Embodiment> This embodiment is made by using a corrugated board having a thickness of about 3 mm as in the first embodiment. 5 to 7 show a stacking paper box of the present embodiment, and like the blanks shown in FIG. 7, a bottom plate 41 has a pair of side plates 42, 43 and a pair of end plates 44, 45 on a bottom plate.
It is a rectangular paper box with a shallow bottom that is connected in series.

The side plates 42, 43 are provided with folding pieces 46, 47, 48, 49 in a row on the left and right respectively. Attached plate members 50A and 50B are continuously provided on the upper ends of both gable plates 44 and 45, and blanks composed of these bottom plate 41, side face plates 42 and 43, gable plates 44 and 45, and attached plate members 50A and 50B will be described later. Insertion pieces 63, 64, 65, 66
Only slightly protrudes and is mostly rectangular.

The accessory plate members 50A and 50B are in the state where the cross plates 51 and 52 on which the upper paper boxes are placed when stacking, the partition plates 53 and 54 which are used separately from the paper boxes, and the cross plates face the bottom plate. Support plates 55, 56, 57 fixed to
58 and second support plates 80, 81, 82, 83.

Of these, the cross plates 51, 52 have the same width as the bottom plate 41, and the end plates 44, 45 face the bottom plate 41.
And the partition plates 53 and 54 are partially broken lines L11 and L.
It is connected to the crosspieces 51 and 52 by 12. Partition plate 5
Slits 53A, 54A are formed at the free ends of 3, 54 for combining them in a cross shape.

The mountain fold line L13,
Cutout line m15 continuous with L14, L15, L16,
Support plates 55, 56, via m16, m17, m18
57 and 58 are connected in series, and a part of this connecting end is set to a position projecting from other connecting ends, and this part constitutes locking pieces 59, 60, 61 and 62. . Partition plate 5
Cut lines m11, m12, m1 are provided at the ends of 3, 54.
Second support plate 80, 81, 82, 83 via 3, m14
Are lined up.

Insertion pieces 63, 64, 65, 66 are attached to the free ends of the second support plates 80, 81, 82, 83. Insertion pieces 63, 6 are provided at the bases of the side plates 42, 43.
Insertion holes 72, 7 at positions corresponding to 4, 65, 66
3, 74, 75 are formed. Support plates 55, 56,
Notches 67, 68, 69, 70 having a width slightly larger than the width of the locking pieces are formed in the portions 57, 58 at positions corresponding to the locking pieces 59, 60, 61, 62. In addition,
The support plates 55, 56, 57, 58 and the second support plates 80, 81, 82, 83 are directly attached to the side plates 42, 43 without providing the engaging means for the insertion pieces and the insertion holes as in this embodiment. The present invention also includes such an example.

Further, in order to improve the internal air permeability when the vegetables and fruits are stored, several ventilation holes 84 are opened at arbitrary positions of the side plate, the gable plate and the support plate.

In order to assemble a blank having such a structure into a paper box, first, the side plates 42, 43 are raised from the bottom plate 41, and the folding pieces 46, 47, 48 ,.
49 is bent at a right angle to the side plates 42, 43, and the gable plates 4 are provided on the outside of the folding pieces 46, 47, 48, 49.
4, 45 are erected, the cross plates 51, 52 are opposed to the bottom plate 41, and the support plates 55, 56, 57, 58 and the second support plates 80, 81, 82, 83 are provided outside the side plates 42, 43. Then, the insertion pieces 63, 64, 65, 66 are inserted and fixed in the insertion holes 72, 73, 74, 75 so as to cover (see FIG. 5). Next, the partition plates 53 and 54 are separated from the paper box along the partial break lines L11 and L12.

When stacking a plurality of stacked paper boxes thus formed, as shown in FIG. 6, the cutouts 67, 68 of the upper paper box are placed on the locking pieces 59, 60, 61, 62 of the lower paper box. , 69, 70 are positioned so that the bottom plate 41 of the upper paper box is placed on the cross plates 51, 52 of the lower paper box.

The paper boxes of the present embodiment stacked in this way have support plates 55, 5 located outside the side plate 41.
Locking pieces 59, 60, 61 attached to 6, 57, 58,
Since it is engaged with 62 by the notches 67, 68, 69, 70, it is possible to smoothly engage the locking pieces without needing to forcibly push them outward during stacking.

The locking pieces (60 and 62) or (59 and 61) and the notches (68 and 70) or (6)
7 and 69) are formed on the support plates (56 and 58) or (55 and 57) that are connected to the pair of cross plates 51 and 52, respectively, so that they are engaged at two positions in the lateral direction. The paper box can be prevented from shifting to the left and right, and the locking piece (59
And 60) or (61 and 62) and notch (67 and 6)
8) or (69 and 70) are support plates (55 and 56) or (57 and 5) that are respectively connected to both ends of the crosspieces 51 and 52.
Since it is formed in 8), it is engaged in two positions in the front-rear direction, and it is possible to prevent the paper box from shifting in the front-rear direction.

Further, since the partition plates 53 and 54 are constructed as the accessory plate members 50A and 50B, there is an advantage that the waste of paper taking can be minimized.

The second support plates 80, 81, 82, 83
The insertion pieces 63, 64, 65, 66 attached to the are bent inward to insert the insertion holes 72, 73, 74, 75, which are vertically engaged with the side surface plate 42, so that when they are stacked. Even if the locking pieces 59, 60, 61, 62 are caught near the notches 67, 68, 69, 70, the second support plates 80, 81, 82, 83 will not be lifted up, and the function thereof may be impaired. Absent. Also, the support plate 5
5,56,57,58 and the second support plates 80,81,82,
Since 83 and 83 are fixed to the side plate 42, the locking piece 5
It prevents 9,60,61,62 from wobbling and can be stacked in the correct position. Further, since they are fixed by inserting them, there is an advantage that no adhesive is required at the time of box making and assembly / disposal is easy.

[0037]

According to the first stacked paper box of the present invention, the upper paper box and the lower paper box are engaged with each other by the engaging piece and the notch provided on the supporting plate located outside the side plate. Since they are fitted together, it is not necessary to force the locking pieces to be pushed outward during stacking, and they can be engaged smoothly. Therefore, there is an effect that the strength of the locking pieces is not impaired and a sufficient function can be exerted. Further, since the locking piece and the notch are formed on the support plate connected to the pair of crosspieces respectively, the paper box can be prevented from shifting to the left and right, and the locking piece and the cutout are at both ends of the crosspiece. Since they are formed on the support plates that are respectively connected to each other, it is possible to prevent the paper box from shifting back and forth. Moreover, since the support plate and the locking piece are provided independently of the side plate,
There is an advantage that it can be smoothly engaged even in a paper box in which the side plate stands upright from the bottom plate.

According to the second stacking paper box of the present invention,
The upper and lower paper boxes are engaged by the notches and the engaging pieces attached to the support plate located outside the side plates, so the engaging pieces are forced to push outward when stacking. Since there is no need to widen and smooth engagement can be achieved, there is an effect that the function of the locking piece can be fully exerted without impairing the strength of the locking piece. Further, since the locking piece and the notch are formed on the support plate connected to the pair of crosspieces respectively, the paper box can be prevented from shifting to the left and right, and the locking piece and the cutout are at both ends of the crosspiece. Since it is formed on the support plate that is connected to each,
It can prevent the paper box from slipping back and forth. Moreover, since the supporting plate and the locking piece are provided independently of the side plate, there is an advantage that the side plate can be smoothly engaged even in a paper box having a shape in which the side plate stands upright from the bottom plate.

Further, since the second support plate is fixed to the side plate, even if the locking pieces are caught near the notches when stacked, they are connected to the cross plate. The support plate is originally difficult to lift and the second support plate does not move, so there is no risk of the second support plate turning over and impairing the function of the locking plate.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment.

FIG. 2 is a perspective view showing a state where the paper boxes of FIG. 1 are stacked.

FIG. 3 is a longitudinal sectional view of a main part of FIG.

FIG. 4 is a development view of the blank of FIG.

FIG. 5 is a perspective view of a second embodiment.

FIG. 6 is a perspective view showing a state where the paper boxes of FIG. 5 are stacked.

7 is a development view of the blank of FIG.

FIG. 8 shows a conventional example, in which (a) is a perspective view and (b) is
Is a longitudinal sectional view of a main part.

FIG. 9 is a longitudinal sectional view of a main part showing a conventional example.

[Explanation of symbols]

 1 ... Bottom plate 2 ... Side plate 3 ... Side plate 4 ... Gable plate 5 ... Gable plate 6 ... Folding piece 7 ... Folding piece 8 ... Folding piece 9 ... Folding piece 10A ... Attached plate member 10B ... Attached plate member 11 ... Die plate 12 ... Crosspiece 13 ... Partition plate fixing part 14 ... Partition plate fixing part 13A ... Slit 14A ... Slit 15 ... Support plate 16 ... Support plate 17 ... Support plate 18 ... Support plate 19 ... Locking piece 20 ... Locking piece 21 ... Locking Piece 22 ... Locking piece 23 ... Inserting piece 24 ... Inserting piece 25 ... Inserting piece 26 ... Inserting piece 27 ... Notch part 28 ... Notch part 29 ... Notch part 30 ... Notch part 31 ... Vent hole 32 ... Insert hole 33 ... insertion hole 34 ... insertion hole 35 ... insertion hole

Claims (2)

[Claims] 1. A paper box having a pair of side plates and a pair of end plates around a bottom plate, wherein support plates are connected to the left and right ends of the end plates provided at the upper ends of the end plates, and the end plates of the support plates are connected to each other. A locking piece is provided on the side of the plate that is continuous with the plate, and a notch corresponding to the locking piece is formed at the end of the support plate opposite to the locking piece.
The support plate is fixed to the outside of the side plate, and when the paper boxes are stacked, the notch portion of the upper paper box is fitted and locked on the locking piece of the lower paper box. Stack paper boxes. 2. A paper box having a pair of side plates and a pair of end plates around a bottom plate, wherein support plates are connected to left and right ends of a cross plate provided at the upper ends of both end plates, and the support plates are connected to each other. A locking piece is attached to the end of the plate connected to the plate, and a notch corresponding to the locking piece is formed at the end of the support plate opposite to the locking piece.
A second support plate having a height equal to that of the side plate is continuously provided next to the cutout portion, and the support plate and the second support plate are fixed on the outside of the side plate to fix the paper box. A stacked paper box, characterized in that, when stacked, the cutout portion of the upper paper box is fitted and locked onto the locking piece of the lower paper box.