JP7156179B2 - tray - Google Patents

Description

The present invention relates to trays.

Some trays are provided with a bottom plate, front and rear end walls, and left and right side walls, with crosspieces provided at the upper edges of the end walls (see, for example, Patent Document 1).
In such a tray, since the contents can be held down by the crosspiece, it is possible to prevent the contents from jumping out. Further, in the tray described above, by placing the bottom plate of another tray on the upper surface of the crosspiece, a plurality of trays can be stably stacked.

In the tray described above, the crosspiece is connected to the side wall by inserting the insertion pieces formed at the left and right edges of the crosspiece into connecting holes formed in the upper end surface of the side wall from above.

Japanese Unexamined Patent Application Publication No. 2016-216118

In the above-described conventional tray, the connecting hole is made small so that the inserting piece can be pushed into the connecting hole in order to make it difficult for the inserting piece to slip out of the connecting hole. Therefore, the conventional tray has a problem that it is difficult to insert the insertion piece into the connecting hole when connecting the crosspiece to the side wall.
Further, in the above-described conventional tray, since the insert piece is pushed into the connecting hole, there is a problem that the insert piece is difficult to pull out from the connecting hole when removing the crosspiece from the end wall.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems and to provide a tray in which the crosspiece can be easily connected to the side wall and the crosspiece can be easily removed from the side wall.

In order to solve the above problems, the present invention provides a tray comprising 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 end walls. and a pier connected to the part. Left and right edges of the crosspiece are placed on upper edges of the side walls, and a cutting guide line is formed between the end wall and the crosspiece. The side wall has an outer wall extending upward from an edge of the bottom plate and a top edge plate extending inward from an upper edge of the outer wall, wherein the top edge plate and the A connecting hole is formed at the corner with the outer wall. The connecting hole is formed with a top opening formed in the top edge plate and a side opening formed in the outer wall. Insertion pieces inserted into the connection holes are formed on the left and right edges of the crosspiece. The insertion piece can be inserted into the side opening from the outer surface side of the outer wall. The insertion piece is formed with an engaging portion that engages with the inner surface side of the edge portion disposed on the center side in the front-rear direction of the top edge plate in the upper surface opening. The top opening is formed such that a gap is formed between the edge of the top edge plate opposite to the center side in the front-rear direction of the top edge plate and the edge of the insertion piece. A width in the front-rear direction is formed.

When assembling the tray of the present invention, the crosspieces are bent with respect to the end walls in a state in which the both end walls and both side walls are raised with respect to the bottom plate. Then, with the crosspiece placed on the upper edges of both side walls, the insertion piece is bent downward with respect to the crosspiece, and the insertion piece is inserted into the side opening of the connecting hole from the outer surface side of the side wall. do. Thus, in the tray of the present invention, the insert piece can be inserted into the connecting hole from the side, and the engaging portion of the insert piece can be engaged with the edge of the connecting hole.
In the tray of the present invention, the crosspiece can be placed on the upper edges of both side walls, and the insertion piece can be inserted into the connection hole from the side in a state in which the insertion piece is positioned with respect to the connection hole. can be easily connected to
In the tray of the present invention, since the cutting guide line is formed between the end wall and the crosspiece, when the tray is displayed or the contents are taken out from the tray, the crosspiece is cut off from the end wall. It can be cut away to open the entire top surface of the tray. This makes it easier to see the contents in the tray, and makes it easier to take out the contents from the tray.

In the tray of the present invention, the engaging portion of the insertion piece is engaged with the edge of the top opening of the connecting hole from the side. It becomes difficult to get out of.
In the tray of the present invention, the upper opening of the connecting hole is made larger than the insertion piece, so that the engaging portion of the insertion piece can be removed from the edge of the upper opening when removing the crosspiece from the end wall. Therefore, the insertion piece can be easily pulled out from the connecting hole.

In the tray described above, it is preferable that the insertion piece extends downward from the lower edge of the side opening, and a slit extending downward from the lower edge of the side opening is formed.

In this configuration, the lower end of the insertion piece abuts against the inner surface of the lower edge of the side opening, making it difficult for the insertion piece to open outward, making it difficult for the insertion piece to slip out of the connecting hole. Also, when the insertion piece is inserted into the side opening, if the lower edge of the insertion piece pushes the lower edge of the side opening, the slit opens and the lower edge of the side opening tilts inward. , the insertion piece can be smoothly inserted into the connecting hole.

In the tray described above, the side wall is provided with an inner wall extending downward from the inner edge of the top edge plate, and the lower edge of the inner wall is brought into contact with the upper surface of the bottom plate to double the side wall. It is preferable to increase the load bearing capacity of the tray by making it a wall.

In the tray of the present invention, the insertion piece can be laterally engaged with the connecting hole while the crosspiece is placed on the upper edges of the side walls, so that the crosspiece can be easily connected to the side walls. Further, in the tray of the present invention, the insertion piece can be easily pulled out from the connecting hole, so that the crosspiece can be easily removed from the side wall.

It is the perspective view which looked at the tray which concerns on embodiment of this invention from the front upper left. It is the figure which showed the blank sheet of the tray which concerns on embodiment of this invention. FIG. 2 is a cross-sectional view taken along line III-III of FIG. 1 showing the tray according to the embodiment of the present invention; FIG. 4 is an enlarged side view showing an engagement state between an insertion piece and a connecting hole of the tray according to the embodiment of the present invention; FIG. 4 is a perspective view of the tray according to the embodiment of the present invention, as seen from the front upper left, before the board is connected to the side wall. FIG. 4 is a perspective view of the tray according to the embodiment of the present invention with the crosspiece removed, as seen from the front upper left.

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 describing the tray of the present embodiment, and do not limit the configuration or usage pattern of the tray.

As shown in FIG. 1, the tray 1 of this embodiment is a box with an open top surface, and a plurality of trays 1 can be stacked during transportation and storage.
The tray 1 of this embodiment includes a bottom plate 10, a pair of front and rear end walls 20, 20 connected to the bottom plate 10, a pair of left and right side walls 30, 30 connected to the bottom plate 10, and both end walls 20, 20. and a pair of front and rear crosspieces 40, 40 connected to the upper edge of each.

As shown in FIG. 2, the tray 1 of the present embodiment is formed by mountain-folding or valley-folding a blank sheet S obtained by cutting out one cardboard sheet along each ruled line. The blank sheet S shown in FIG. 2 is arranged so that the inner side can be seen.
Each ruled line (folded line) of the blank sheet S is a linear groove (press ruled line) formed by pressing the surface of the blank sheet S. As shown in FIG. Note that intermittent slits may be formed on the ruled lines. By doing so, it becomes easier to fold the blank sheet S at the ruled line.

The bottom plate 10 is a rectangular flat plate, as shown in FIG. As shown in FIG. 1, front and rear end walls 20, 20 are connected to front and rear edges of the bottom plate 10. As shown in FIG. Further, left and right side walls 30 , 30 are connected to left and right edges of the bottom plate 10 .

Two mounting holes 11 are formed in the left and right edges of the bottom plate 10 (see FIG. 2). Each mounting hole 11 is spaced apart in the front-rear direction.
Two bottom holes 12 are formed in the front and rear edges of the bottom plate 10 (see FIG. 2). Each bottom hole 12 is arranged at intervals in the left-right direction.

The left and right side walls 30, 30 are raised on the left and right edges of the bottom plate 10, respectively. Side wall 30 is formed perpendicular to bottom plate 10, as shown in FIG. The side wall 30 is a double wall in which an outer wall 31 and an inner wall 33 are arranged inside and outside.

The left side wall 30 is raised on the left edge of the bottom plate 10 . The left side wall 30 includes an outer wall 31 connected to the left edge of the bottom plate 10, a top edge plate 32 connected to the upper edge of the outer wall 31, and an inner edge of the top edge plate 32. an inner wall 33;

The outer wall 31 is a rectangular flat plate (see FIG. 2) and is connected to the left edge of the bottom plate 10 via a ruled line. The outer wall 31 extends upward from the left edge of the bottom plate 10 . The outer wall 31 is formed perpendicular to the bottom plate 10 .

A top edge plate 32 is connected to the upper edge of the outer wall 31 via a ruled line. The top edge plate 32 is formed in a belt shape along the upper edge of the outer wall 31 (see FIG. 1) and extends inward from the upper edge of the outer wall 31 . The top edge plate 32 is formed perpendicular to the outer wall 31 .

An inner wall 33 is connected to the inner edge of the top edge plate 32 via a ruled line. The inner wall 33 is a rectangular flat plate (see FIG. 2) and extends downward from the inner edge of the top edge plate 32 . The inner wall 33 is formed perpendicular to the top edge plate 32 .
A lower edge of the inner wall 33 is in contact with the upper surface of the bottom plate 10 . At the lower edge of the inner wall 33, an engaging piece 33a is projected to be inserted into the mounting hole 11 of the bottom plate 10 (see FIG. 2).

The right side wall 30 is raised at the right edge of the bottom plate 10 . The right side wall 30 and the left side wall 30 are bilaterally symmetrical.

As shown in FIG. 2, the front end wall 20 is a rectangular flat plate and is connected to the front edge of the bottom plate 10 via a ruled line. The front end wall 20 extends upwardly from the front edge of the bottom plate 10, as shown in FIG. The front end wall 20 is formed perpendicular to the bottom plate 10 .

Left and right flaps 21, 21 are connected to the left and right edges of the front end wall 20 via ruled lines (see FIG. 2). The flap 21 extends rearward from the front end wall 20 . The flap 21 is sandwiched between an outer wall 31 and an inner wall 33 of the side wall 30, as shown in FIG. Thus, flap 21 connects end wall 20 to side wall 30 .

A contact plate 22 is connected to the upper edge of the flap 21 . The contact plate 22 is connected to the flap 21 via a broken line in which cuts are arranged intermittently. The contact plate 22 is formed in a belt shape along the upper edge of the flap 21 . The contact plate 22 is bent inwardly with respect to the flap 21 , and the upper surface of the contact plate 22 contacts the lower surface of the top edge plate 32 of the side wall 30 .

A front crosspiece 40 is connected to the upper edge of the front end wall 20 via a cutting guide line L, as shown in FIG.
The cutting guide line L is a perforated line in which notches are intermittently formed, and each notch of the cutting guide line L penetrates the blank sheet S (see FIG. 2). The cutting guide line L is a portion that becomes a boundary when cutting off the crosspiece 40 from the end wall 20 (see FIG. 6).

A semicircular cutting start portion 23 is opened at the center of the upper edge of the front end wall 20 . Left and right protruding pieces 24 protrude upward from the left and right sides of the cutting start portion 23 at the upper edge of the front end wall 20 .
The protruding piece 24 is formed at a position that is deeper into the crosspiece 40 than the cutting guide line L in the state of the blank sheet S shown in FIG. Then, as shown in FIG. 1 , when the crosspiece 40 is bent with respect to the end wall 20 , it is separated from the crosspiece 40 and protrudes above the top surface of the crosspiece 40 .

The front crosspiece 40 is a flat plate formed in a belt shape along the upper edge of the front end wall 20 . The front crosspiece 40 extends rearward from the upper edge of the front end wall 20 . The front crosspiece 40 is formed perpendicular to the front end wall 20 .
The left and right edge portions of the front crosspiece 40 are placed on the front portions of the upper surfaces of the top edge plates 32, 32 of the left and right side walls 30, 30, respectively. The front crosspiece 40 closes the front end of the opening on the upper surface of the tray 1 . The central portion of the tip edge of the front crosspiece 40 is recessed.

A rear end wall 20 extends upward from the rear edge of the bottom plate 10 . The end wall 20 on the rear side and the end wall 20 on the front side have a symmetrical configuration.
A rear crosspiece 40 is connected to the upper edge of the rear end wall 20 . The crosspiece 40 on the rear side and the crosspiece 40 on the front side have a symmetrical configuration.

In the tray 1 of this embodiment, as shown in FIG. 5, front and rear connecting holes 60, 60 are formed in the upper end portion of the side wall 30. As shown in FIG. The front connecting hole 60 is arranged in the front part of the side wall 30 and the rear connecting hole 60 is arranged in the rear part of the side wall 30 .

The front connecting hole 60 and the rear connecting hole 60 are symmetrical. Also, the two connecting holes 60, 60 in the left side wall 30 and the two connecting holes 60, 60 in the right side wall 30 have a symmetrical configuration. In the following description, the front connecting hole 60 formed in the left side wall 30 will be described, and the description of the other connecting holes 60 will be omitted.

A connecting hole 60 is formed at a corner between the top edge plate 32 and the outer wall 31 . A top opening 61 formed in the top edge plate 32 and a side opening 62 formed in the outer wall 31 are formed in the connecting hole 60 .

The upper opening 61 is a substantially rectangular opening formed in the top edge plate 32 . The upper surface opening 61 is formed in the left-right direction from the left edge of the top edge plate 32 to the center portion of the top edge plate 32 in the left-right direction. The front edge of the top opening 61 is arranged perpendicular to the left and right edges.

The rear edge of the upper surface opening 61 is inclined so that the right end is positioned forward of the left end. As a result, the width of the upper surface opening 61 in the front-rear direction becomes narrower from the outer side (left side) toward the inner side (right side).

The side opening 62 is a rectangular opening formed at the upper end of the outer wall 31 . The side opening 62 extends downward from the upper edge of the outer wall 31 . The side opening 62 is continuous with the top opening 61 . The width of the side opening 62 in the front-rear direction is the same as the width in the front-rear direction of the outer end (left end) of the top opening 61 .

Two front and rear slits 63 , 63 extending downward are formed at the front and rear ends of the lower edge of the side opening 62 . The slit 63 is a linear cut penetrating the outer wall 31 . On the inner surface of the outer wall 31, ruled lines are formed between the lower ends of the slits 63, 63. As shown in FIG.

In the tray 1 of this embodiment, a concave portion 21a is formed in the upper edge portion of the flap 21 that is connected to the end wall 20 (see FIG. 2). The recess 21 a is arranged directly below the top opening 61 and inside the side opening 62 .

In the tray 1 of this embodiment, insertion pieces 41 and 41 are formed on the left and right edges of the crosspiece 40 . The left and right insertion pieces 41, 41 have a symmetrical structure. The insertion piece 41 is a portion that is inserted into the connecting hole 60 of the side wall 30 (see FIG. 1).

The insertion pieces 41 are connected to the front ends of the left and right edges of the crosspiece 40 via ruled lines. The insertion piece 41 extends downward from the edge of the crosspiece 40, as shown in FIG. The lower edge of the insertion piece 41 is curved in a semicircular shape as shown in FIG.
The vertical length of the insertion piece 41 is greater than the vertical length of the side opening 62 . Therefore, when the insertion piece 41 is inserted into the connecting hole 60 , the insertion piece 41 extends below the lower edge of the side opening 62 .

An engaging portion 42 recessed forward is formed at the upper end portion of the rear edge portion of the insertion piece 41 on the front side. When the insertion piece 41 is inserted into the connecting hole 60 , the edge of the engaging portion 42 is engaged with the inner surface of the rear edge of the upper opening 61 .

A gap is formed between the front edge of the insertion piece 41 and the front edge of the top opening 61 when the engaging portion 42 of the insertion piece 41 is engaged with the rear edge of the top opening 61 . The width of the upper surface opening 61 in the front-rear direction is set so as to be

In the tray 1 of this embodiment, as shown in FIG. Concatenated.

When assembling the tray 1 as described above, as shown in FIG. bend towards.

Subsequently, as shown in FIG. 1, with the crosspiece 40 placed on the upper edges of the side walls 30, 30, the insertion piece 41 is bent downward with respect to the crosspiece 40, and the insertion piece 41 is bent downward. is pushed into the side opening 62 of the connecting hole 60 from the outer surface side of the outer wall 31 . At this time, when the lower edge of the side opening 62 is pushed by the lower end of the insertion piece 41, the front and rear slits 63, 63 open and the lower edge of the side opening 62 tilts inward. 41 can be smoothly inserted into the side opening 62 .

The width in the front-rear direction of the upper opening 61 of the connecting hole 60 narrows from the outside toward the inside. Therefore, when the inserting piece 41 is pushed into the connecting hole 60, the engaging portion 42 of the inserting piece 41 enters below the rear edge of the upper opening 61 as shown in FIG. The joint portion 42 engages with the inner surface side of the rear edge portion of the upper surface opening 61 .

Thus, in the tray 1 of the present embodiment, the insertion piece 41 can be laterally inserted into the connecting hole 60 so that the engaging portion 42 of the insertion piece 41 can be reliably engaged with the edge of the connecting hole 60 . Therefore, in the tray 1, even if the upper opening 61 of the connecting hole 60 is not made small, the insertion piece 41 is difficult to come off from the connecting hole 60.例文帳に追加
In addition, since the lower end of the insertion piece 41 abuts against the inner surface of the lower edge of the side opening 62 , the insertion piece 41 is less likely to open outward and is less likely to come out of the connecting hole 60 .

In the tray 1 of this embodiment, as shown in FIG. Since the piece 41 can be laterally inserted into the connecting hole 60, the crosspiece 40 can be easily connected to the side wall 30. - 特許庁
Since the recess 21a of the flap 21 is arranged directly below the upper opening 61 of the connecting hole 60 and on the side of the side opening 62, the insertion piece 41 can be prevented from interfering with the flap 21. .

In the tray 1 of this embodiment, the contents can be restrained by the front and rear crosspieces 40, 40, so that the contents can be prevented from jumping out of the tray 1.例文帳に追加
Further, in the tray 1, the bottom plate 10 of another tray 1 is placed on the top edge plates 32, 32 of the left and right side walls 30, 30 and the front and rear crosspieces 40, 40, so that the plurality of trays 1 can be stably stacked. Stackable.
Also, when another tray 1 is placed on the upper surface of the tray 1, the projecting piece 24 of the end wall 20 is inserted into the bottom hole 12 of the bottom plate 10 of the other tray 1. It is possible to prevent the tray 1 from slipping.

In the side wall 30 of the tray 1 of this embodiment, as shown in FIG. Due to the double walls, the load capacity of the tray 1 can be increased.

When cutting off the crosspiece 40 from the end wall 20, as shown in FIG. can be easily cut open towards the end of the

In the tray 1 of this embodiment, the upper opening 61 of the connecting hole 60 is formed to be larger than the insertion piece 41 . Therefore, as shown in FIG. 4, in a state where the engaging portion 42 of the insertion piece 41 is engaged with the rear edge portion of the top opening 61, the front edge portion of the insertion piece 41 and the front edge of the top opening 61 are separated from each other. A gap is formed between the edges.

In this configuration, when removing the crosspiece 40 from the end wall 20 , the insertion piece 41 is moved forward within the connecting hole 60 so that the engaging portion 42 of the insertion piece 41 is positioned at the rear edge of the upper opening 61 . Easier to remove from the unit. Thereby, the insertion piece 41 can be easily pulled out from the connecting hole 60 .

When the tray 1 of this embodiment is displayed, the front and rear crosspieces 40, 40 are separated from the front and rear end walls 20, 20, so that the entire upper surface of the tray 1 can be opened as shown in FIG. This makes it easier to see the contents in the tray 1 and makes it easier to take out the contents from the tray 1 .

As described above, in the tray 1 of this embodiment, as shown in FIG. Due to the engagement, the crosspiece 40 can be easily connected to the side wall 30 . Therefore, the tray 1 having the crosspiece 40 can be easily assembled.

Further, in the tray 1 of the present embodiment, the insertion piece 41 can be easily pulled out from the connecting hole 60 , so that the crosspiece 40 can be easily removed from the side wall 30 . As a result, when the tray 1 is displayed, the entire upper surface of the tray 1 can be easily opened as shown in FIG.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be appropriately modified without departing from the scope of the invention.
In the tray 1 of this embodiment, as shown in FIG. You may arrange the crosspiece 40 continuously.

In the tray 1 of the present embodiment, the crosspiece 40 is connected to the upper edge of the end wall 20 via the cutting guide line L, but as a reference example of the present invention, the upper edge of the end wall 20 You may arrange the crosspiece 40 continuously via a ruled line.

In the tray 1 of the present embodiment, the side wall 30 is formed with a double wall, but the side wall 30 may be configured by only the outer wall 31 and the top edge plate 32 without providing the inner wall 33 .

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

Reference Signs List 1 tray 10 bottom plate 20 end wall 21 flap 21a recess 30 side wall 31 outer wall 32 top edge plate 33 inner wall 33a engaging piece 40 crosspiece 41 insertion piece 42 engaging portion 60 connecting hole 61 upper opening 62 side opening 63 slit L Cutting guide line S Blank sheet

Claims (3)

a bottom plate;
front and rear end walls connected to the bottom plate;
Left and right side walls connected to the bottom plate;
and a crosspiece connected to the upper edge of the end wall,
The left and right edges of the crosspiece are placed on the upper edges of the side walls ,
A cutting guide line is formed between the end wall and the crosspiece,
The side walls are
an outer wall extending upward from the edge of the bottom plate;
a top edge plate extending inwardly from the upper edge of the outer wall;
A connecting hole is formed at a corner of the top edge plate and the outer wall,
The connecting hole is formed with a top opening formed in the top edge plate and a side opening formed in the outer wall,
Insert pieces inserted into the connecting holes are formed on the left and right edges of the crosspiece,
The insertion piece can be inserted into the side opening from the outer surface side of the outer wall,
The insertion piece is formed with an engaging portion engaged with an inner surface side of an edge portion disposed on the center side in the front-rear direction of the top edge plate in the upper opening ,
The top opening is formed such that a gap is formed between the edge of the top edge plate opposite to the center side in the front-rear direction of the top edge plate and the edge of the insertion piece. A tray having a width in the front-rear direction . A tray according to claim 1, comprising:
The insertion piece extends below the lower edge of the side opening,
A tray comprising a slit extending downward from a lower edge of the side opening. A tray according to claim 1 or claim 2,
The side walls are
an inner wall extending downwardly from the inner edge of the top edge plate;
A tray, wherein a lower edge of said inner wall is in contact with an upper surface of said bottom plate.

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