JP2023127141A - tray - Google Patents

Abstract

To provide a tray for stabilizing a side wall and a sash bar plate.SOLUTION: A tray 1 has front and rear end walls 20, 20 and right and left side walls 30, 30 continued to a bottom plate 10, and right and left sash bar plates 40, 40 protruded inward from upper edge parts of both side walls 30, 30, respectively. The tray 1 has a left flap 50 continued to the left sash bar plate 40 and overlapping an inner face of the end wall 20, and a right flap 60 continued to the right sash bar plate 40 and overlapping the inner face of the end wall 20. A lower engagement part 51 is protruded at a lower part of the left flap 50, and an upper engagement part 61 is protruded at an upper part of the right flap 60. The upper engagement part 61 of the right flap 60 enters between an engagement part 41 projecting from an edge part of the left sash bar plate 40 and the lower engagement part 51 of the left flap 50.SELECTED DRAWING: Figure 1

Description

The present invention relates to a tray.

The cardboard tray has front and rear end walls and left and right side walls that are connected to the bottom plate, and the left and right flaps that are connected to both side walls are stacked on the inner surface of the end wall, and the tips of the left and right flaps are There are some in which they are engaged with each other in the vertical direction (for example, see Patent Document 1).
In this configuration, by connecting the left and right flaps that are connected to the left and right side walls, respectively, the left and right side walls are prevented from opening in the left-right direction.

Patent No. 6974643

In the conventional tray described above, recesses that are recessed in the vertical direction are formed at the tips of the left and right flaps, and the recesses are combined in the vertical direction. This configuration has a problem in that the side wall is difficult to stabilize because the tip of the flap tends to move vertically.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tray that can solve the above problems and stabilize the side walls and crosspieces.

In order to solve the above problems, the present invention provides a tray including a bottom plate, front and rear end walls connected to the bottom plate, left and right side walls connected to the bottom plate, and upper edges of the both side walls. It is equipped with left and right crosspieces that respectively protrude inward from the section. The tray also includes a left flap that is connected to the crosspiece on the left side and overlaps the inner surface of the end wall, and a right flap that is connected to the crosspiece on the right side and overlaps the inner surface of the end wall. It is equipped with. A lower engaging portion protruding to the right than the upper portion is formed in the lower portion of the left flap, and an upper engaging portion protruding to the left than the lower portion is formed in the upper portion of the right flap. The upper engaging portion of the right flap fits between a locking portion projecting from an edge of the left crosspiece and the lower engaging portion of the left flap.

In the tray of the present invention, the left flap and the right flap are connected to the side wall via the crosspiece. The movement of the right flap in the vertical direction is regulated by the locking part of the left crosspiece and the lower engagement part of the left flap, and the movement of the left flap in the vertical direction is regulated by the upper engagement part of the right flap. be done.
Therefore, in the tray of the present invention, since the left flap and the right flap are difficult to move in the vertical direction, the side wall and the crosspiece can be stabilized. Moreover, the strength of the crosspiece plate against the force when the crosspiece plate is gripped and pulled up can be increased.

In the tray described above, when a first partition plate extending in the front-rear direction is provided between the both side walls, the top edge of the cross plate in the left-right direction is connected to the upper edge of the first partition plate. It is preferable to set
With this configuration, when assembling the tray, when the crosspiece is bent inward against the side wall, the first partition plate is placed between the side walls, making it easy to assemble a tray with an internal space partitioned left and right. be able to.

In the tray described above, when a second partition plate extending in the left-right direction is provided between the both side walls, the upper part of the second partition plate is inserted into the upper part of the first partition plate through the bent part. It is preferable that the
With this configuration, when assembling the tray, when the crosspiece is bent inward against the side wall, the first partition plate and the second partition plate are placed between the side walls, so the internal space is partitioned into front, back, left and right. The tray can be easily assembled.

In the tray of the present invention, the left flap and right flap, which are connected to the side wall through the crosspiece, are difficult to move in the vertical direction, so the sidewall and the crosspiece are stabilized, and the crosspiece has strength against vertical forces. can be increased.

FIG. 2 is a perspective view of the tray according to the embodiment of the present invention, viewed from the front and upper left. FIG. 3 is a diagram showing a blank sheet of a tray according to an embodiment of the present invention. FIG. 2 is a sectional view taken along line III-III in FIG. 1 showing a tray according to an embodiment of the present invention. FIG. 2 is a diagram showing a procedure for assembling a tray according to an embodiment of the present invention, and is a perspective view showing a state before the crosspiece is bent inward. It is a figure showing the procedure of assembling the tray concerning an embodiment of the present invention, and is a perspective view showing the state where the left crosspiece board was bent inward. FIG. 3 is a diagram showing a procedure for assembling a tray according to an embodiment of the present invention, and is a perspective view showing a state in which the right crosspiece plate is bent inward.

Embodiments of the present invention will be described in detail with reference to the drawings as appropriate.
In the following description, the front, rear, left, and right directions are set for convenience in explaining the tray of this embodiment, and do not limit the structure or usage of the tray.

As shown in FIG. 1, the tray 1 of this embodiment includes a bottom plate 10, front and rear end walls 20, 20 connected to the bottom plate 10, left and right side walls 30, 30 connected to the bottom plate 10, It is equipped with The tray 1 also includes front and rear crosspieces 40 that protrude inwardly from the upper edges of both side walls 30 and 30, a left flap 50 that overlaps the inner surface of the end wall 20, and a left flap 50 that overlaps the inner surface of the end wall 20. and overlapping right flaps 60. Moreover, on the bottom plate 10 of the tray 1, a first partition plate 70 extending in the front-rear direction and a second partition plate 80 extending in the left-right direction are erected.

As shown in FIG. 2, the tray 1 of this embodiment is formed by mountain-folding or valley-folding a blank sheet S obtained by cutting out a cardboard sheet along each fold line. The blank sheet S shown in FIG. 2 is arranged so that the inner surface side is visible.
The fold line of the blank sheet S is a ruled line (pressed line) formed by pressing the surface of the blank sheet S into a linear shape. Note that intermittent cuts may be formed in the ruled lines. This makes it easier to fold the blank sheet S along the fold line.
Alternatively, the folded line may be formed by intermittent half-cut slits that cut only the surface of the sheet or slits that penetrate through the sheet to form a linear shape.

The bottom plate 10 is formed into a rectangle, as shown in FIG. 4 (see FIG. 2).
A front end wall 20 is connected to the front edge of the bottom plate 10 via a fold line. The front end wall 20 is formed in a rectangular shape and extends upward from the front edge of the bottom plate 10. The front end wall 20 is formed perpendicular to the bottom plate 10.
A rear end wall 20 is connected to the rear edge of the bottom plate 10 via a fold line. The front and rear end walls 20, 20 are formed symmetrically.

A left side wall 30 is connected to the left edge of the bottom plate 10 via a fold line. The left side wall 30 is formed in a rectangular shape and extends upward from the left edge of the bottom plate 10. The left side wall 30 is formed perpendicularly to the bottom plate 10.
An inner wall 31 is connected to an intermediate portion of the upper edge of the left side wall 30 via a fold line. The inner wall 31 is folded back inward with respect to the side wall 30 and is overlapped with the inner surface of the side wall 30.

A right side wall 30 is connected to the right edge of the bottom plate 10 via a fold line. The left and right side walls 30, 30 are formed symmetrically.
An inner wall 32 is connected to an intermediate portion of the upper edge of the right side wall 30 via a fold line. The inner wall 32 is folded back inward with respect to the side wall 30, and is overlapped with the inner surface of the side wall 30 in a double folded state.

As shown in FIG. 1, a left front crosspiece 40 is connected to the front end of the upper edge of the left side wall 30 via a fold line. Furthermore, a left rear crosspiece 40 is connected to the rear end of the upper edge of the left side wall 30 via a fold line.
The crosspiece plate 40 is bent inward with respect to the side wall 30. The crosspiece 40 extends perpendicularly to the side wall 30.
The crosspiece plate 40 extends in a band shape along the upper edge of the end wall 20. The crosspiece plate 40 is formed to have half the length of the upper edge of the end wall 20.

A front right crosspiece 40 and a rear right crosspiece 40 are connected to the front end and rear end of the upper edge of the right side wall 30 via a fold line. The front and rear crosspiece plates 40, 40 on the right side are formed symmetrically with respect to the front and rear crosspiece plates 40, 40 on the left side.
The end edges of the left and right crosspiece plates 40, 40 are butted against each other at the center of the upper opening of the tray 1 in the left-right direction.

The first partition plate 70 is arranged at the center in the left-right direction between the left and right side walls 30, 30. In this embodiment, the left and right first partition plates 70, 70 are stacked on top of each other.
The first partition plate 70 extends in the front-rear direction across the front and rear inner surfaces of the internal space of the tray 1. The internal space of the tray 1 is partitioned into left and right sides by both first partition plates 70, 70.

The front end of the upper edge of the first partition plate 70 on the left side is connected to the front end edge of the front left crosspiece plate 40 via a fold line. Further, the tip edge of the left rear crosspiece plate 40 is connected to the rear end of the upper edge of the first partition plate 70 on the left side via a fold line (see FIG. 4).
The front end of the upper edge of the first partition plate 70 on the right side is connected to the front end edge of the front right crosspiece plate 40 via a fold line. Further, the tip edge of the right rear crosspiece plate 40 is connected to the rear end of the upper edge of the first partition plate 70 on the right side via a fold line (see FIG. 4).

The second partition plate 80 is arranged at the center in the front-rear direction between the left and right side walls 30, 30.
The second partition plate 80 extends in the left-right direction across the left and right inner surfaces of the internal space of the tray 1 . The interior space of the tray 1 is partitioned into front and rear parts by the second partition plate 80.
The internal space of the tray 1 of this embodiment is partitioned into four spaces, front, rear, left and right, by both first partition plates 70, 70 and a second partition plate 80.

The upper edge of the second partition plate 80 is connected to the upper part of the first partition plate 70 on the left side via the bent part 71.
The bent portion 71 is a portion obtained by bending a part of the center portion of the upper part of the left first partition plate 70 in the front-rear direction, and is formed in a quarter-circular shape in this embodiment. The bent portion 71 is bent perpendicularly to the first partition plate 70 so as to protrude to the left.
The upper edge of the second partition plate 80 is connected to the upper edge of the bent portion 71 via a fold line. The second partition plate 80 is folded back toward the folded portion 71. Further, the left and right first partition plates 70, 70 are inserted into a connecting recess 81 formed at the lower edge of the second partition plate 80.

In the state of the blank sheet S shown in FIG. 2, the inner walls 31, 32 and the second partition plate 80 are accommodated in a region surrounded by the side wall 30, the two crosspiece plates 40, 40, and the first partition plate 70. In this way, since the blank sheet S is formed into a substantially rectangular flat plate shape, there are fewer parts to cut out from the sheet when manufacturing the blank sheet S, and the amount of scraps can be reduced, making it possible to use resources more effectively. can be used.

As shown in FIG. 1, a front left flap 50 is connected to the front edge of the front left crosspiece 40 via a fold line. The left flap 50 is bent downward with respect to the left front crosspiece 40. The left flap 50 is stacked on the inner surface of the front end wall 20. The lower edge of the left flap 50 is in contact with the upper surface of the bottom plate 10.

As shown in FIG. 3, the upper part of the left flap 50 is formed shorter than the front edge of the left front crosspiece 40. The left flap 50 is not connected to the tip (right end) of the front edge of the left front crosspiece 40.
As shown in FIG. 1, in the front edge of the left front crosspiece 40, a locking portion 41 that projects forward is formed at a portion where the left flap 50 is not connected. The protruding length of the locking portion 41 is approximately the thickness of the blank sheet.
A lower engaging portion 51 is formed at the lower portion of the left flap 50 and projects further to the right than the upper portion. The tip portion of the lower engaging portion 51 is disposed on the right side of the center portion of the end wall 20 in the left-right direction.
Between the locking portion 41 of the crosspiece 40 and the lower engagement portion 51 of the left flap 50, a recessed portion is formed to the left of the center portion of the end wall 20 in the left-right direction.

At the lower edge of the left flap 50, a fixing recess 52 recessed upward is formed at a position corresponding to the center of the end wall 20 in the left-right direction. Two fixing protrusions 72, 72 protruding from the front edges of the left and right first partition plates 70, 70, respectively, are inserted into the fixing recess 52.

A front right flap 60 is connected to the front edge of the front right crosspiece 40 via a fold line. The right flap 60 is bent downward with respect to the front right crosspiece 40. The right flap 60 is stacked on the inner surface of the front end wall 20.

As shown in FIG. 3, the lower part of the right flap 60 is formed shorter than the front edge of the right front crosspiece 40.
An upper engaging portion 61 is formed at the upper portion of the right flap 60 and projects further to the left than the lower portion. The tip portion of the upper engaging portion 61 is disposed on the left side of the center portion of the end wall 20 in the left-right direction.

The upper engaging portion 61 of the right flap 60 is inserted between the locking portion 41 of the left crosspiece 40 and the lower engaging portion 51 of the left flap 50. That is, the upper engaging portion 61 of the right flap 60 is sandwiched between the locking portion 41 of the left crosspiece 40 and the lower engaging portion 51 of the left flap 50 from the vertical direction.
As a result, when the right flap 60 attempts to move upward, the upper engaging portion 61 comes into contact with the locking portion 41, thereby restricting the upward movement. Further, when the right flap 60 attempts to move downward, the upper engaging portion 61 abuts the lower engaging portion 51, thereby restricting the downward movement.

As shown in FIG. 1, a rear left flap 50 is connected to the rear edge of the left rear crosspiece 40. As shown in FIG. Further, a rear right flap 60 is connected to the rear edge of the right rear crosspiece 40. The left flap 50 and right flap 60 on the rear side are formed to be symmetrical with respect to the left flap 50 and right flap 60 on the front side.

When assembling the tray 1 of this embodiment, first, as shown in FIG. 4, the front and rear end walls 20, 20 and the left and right side walls 30, 30 are raised with respect to the bottom plate 10. Subsequently, the inner walls 31 and 32 are folded back against the side walls 30 and 30, respectively, and the inner walls 31 and 32 are stacked on the inner surface of the side wall 30.
Further, the left flap 50 and the first partition plate 70 are raised against both the left crosspiece plates 40, 40. At this time, when the fixing protrusion 72 of the first partition plate 70 is inserted into the fixing recess 52 of the left flap 50, the left flap 50 and the first partition plate 70 are stabilized.
The second partition plate 80 is bent together with the first partition plate 70 with respect to the two crosspiece plates 40, 40, and is in a state of hanging down with respect to both the crosspiece plates 40.
Further, the right flap 60 and the first partition plate 70 are raised against both the right crosspiece plates 40, 40.

As shown in FIG. 5, when the front and rear crosspieces 40, 40 are bent inward with respect to the left side wall 30, the left flap 50 is overlapped with the inner surface of the end wall 20, and the left side first partition plate 70 and the A two-parting plate 80 is arranged at the center between both side walls 30, 30. The second partition plate 80 is arranged above the first partition plate 70.

Further, as shown in FIG. 6, when the front and rear crosspieces 40, 40 are bent inward with respect to the right side wall 30, the right flap 60 is overlapped with the inner surface of the end wall 20, and the right first partition plate 70 is arranged in the center between both side walls 30, 30, and the left and right first partition plates 70, 70 are overlapped.

Further, the fixing protrusions 72, 72 of both first partition plates 70, 70 are inserted into the fixing recess 52 of the left flap 50. Thereby, both first partition plates 70, 70 are maintained in a vertically raised state with respect to the bottom plate 10.

Subsequently, as shown in FIG. 1, the bent portion 71 of the first partition plate 70 on the left side is bent so as to protrude to the left side with respect to the first partition plate 70 on the left side, and the second Fold the partition plate 80 downward. At this time, both first partition plates 70, 70 are inserted into the coupling recess 81 of the second partition plate 80.
Thereby, the first partition plates 70, 70 and the second partition plate 80 are arranged in a cross shape in the internal space of the tray 1 in a plan view. In this way, the internal space of the tray 1 can be easily partitioned into four spaces: front, rear, left, and right.

Further, the upper engaging portion 61 of the right flap 60 is arranged above the lower engaging portion 51 of the left flap 50. Further, the tip of the upper engaging portion 61 enters between the locking portion 41 of the left crosspiece 40 and the lower engaging portion 51 of the left flap 50.

In the tray 1 of this embodiment as described above, as shown in FIG. The engaging portion 51 restricts vertical movement. Further, the left flap 50 connected to the left crosspiece 40 is restricted from moving in the vertical direction by the upper engaging portion 61 of the right flap 60.
Therefore, in the tray 1 of this embodiment, since the left flap 50 and the right flap 60 are difficult to move in the vertical direction, the left and right side walls 30, 30 and each crosspiece 40 can be stabilized.

Further, when the crosspiece plate 40 is grasped and pulled up to move the tray 1, the crosspiece plate 40 is supported by the left flap 50 and the right flap 60, so that the strength of the crosspiece plate 40 against the pulling force can be increased. Can be done.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be modified as appropriate without departing from the spirit thereof.
In the tray 1 of this embodiment, as shown in FIG. 1, the left flap 50 and the right flap 60 are provided on the front and rear, but the left flap 50 and the right flap 60 may be provided only on one of the front and rear.

In the tray 1 of this embodiment, as shown in FIG. The tip of the portion 51 may be located at the center of the end wall 20 in the left-right direction or on the left side of the center.

In the tray 1 of this embodiment, as shown in FIG. 1, the internal space is partitioned into four spaces by a first partition plate 70 and a second partition plate 80, but the number and shape of the partition plates are limited. It's not a thing. Furthermore, it is not necessary to provide a partition plate.
For example, if the second partition plate 80 is also provided in series with the first partition plate 70 on the right side, and the two second partition plates 80, 80 are arranged with an interval in the front-rear direction, The internal space of the tray 1 can be partitioned into six spaces.
Further, another first partition plate 70 is provided in series between the front and rear crosspieces 40, 40, and a second partition plate 80 is provided in series with the other first partition plate 70, so that the four first partitions When the plates 70 are arranged at intervals in the left-right direction, the internal space of the tray 1 can be partitioned into eight spaces.

Although the tray 1 of this embodiment is made of cardboard, the tray may be made of various known paperboards.

1 Tray 10 Bottom plate 20 End wall 30 Side wall 31 Left inner wall 32 Right inner wall 40 Cross plate 41 Locking part 50 Left flap 51 Lower engaging part 52 Fixing recess 60 Right flap 61 Upper engaging part 70 First partition plate 71 Bending portion 72 Fixing protrusion 80 Second partition plate 81 Connection recess S blank sheet

Claims (3)

The bottom plate and
front and rear end walls connected to the bottom plate;
left and right side walls connected to the bottom plate;
left and right crosspieces protruding inwardly from the upper edges of the both side walls, respectively;
a left flap connected to the left crosspiece and overlapped with the inner surface of the end wall;
a right flap connected to the right crosspiece and overlapped with the inner surface of the end wall;
A lower engaging part is formed at the lower part of the left flap and projects further to the right than the upper part,
An upper engaging part is formed at the upper part of the right flap and projects further to the left than the lower part,
The tray characterized in that the upper engaging portion of the right flap is inserted between a locking portion projecting from an edge of the left crosspiece and the lower engaging portion of the left flap. The tray according to claim 1,
A first partition plate extending in the front-rear direction is provided between the both side walls,
A tray characterized in that a tip end edge in the left-right direction of the crosspiece plate is connected to an upper edge of the first partition plate. The tray according to claim 2,
A second partition plate extending in the left-right direction is provided between the both side walls,
The tray is characterized in that an upper part of the second partition plate is connected to an upper part of the first partition plate via a bent part.

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