JP2022185629A - tray - Google Patents

Abstract

To provide a tray in which the strength of a crosspiece plate against a force in the vertical direction is improved.SOLUTION: A tray 1 comprises an end wall 20 and a side wall 30 which are erected on a bottom plate 10. Further, the tray 1 comprises an intermediate plate 60 which is connected to the end wall 20 and the side wall 30 adjacent to each other and is overlapped on an outer surface of the side wall 30 in a folded state, a first crosspiece plate 40 which projects inward from the end wall 20, and a second crosspiece plate 50 which is folded back to the lower surface side of the first crosspiece plate 40. A first support plate 70 is connected to an upper edge of the side wall 30, and a second support plate 80 overlapped on the upper surface of the first support plate 70 is connected to the upper edge of the intermediate plate 60. The first support plate 70 and the second support plate 80 are put between the first crosspiece plate 40 and the second crosspiece plate 50.SELECTED DRAWING: Figure 5

Description

The present invention relates to trays.

The corrugated cardboard tray includes a bottom plate, front and rear end walls, left and right side walls, and crosspieces protruding inward from the upper edges of the end walls. In some cases, the lower edge of the inner plate that has been cut is in contact with the upper surface of the bottom plate (see, for example, Patent Document 1).

JP 2015-131677 A

In the above-described conventional tray, there is a problem that when the board is grasped and pulled upward, the board tends to open upward.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-described problems and to provide a tray capable of increasing the strength of a crosspiece against vertical force.

To solve the above problems, the present invention provides a tray comprising a bottom plate, front and rear end walls raised at the front and rear edges of the bottom plate, and left and right edges raised at the left and right edges of the bottom plate. a side wall; In addition, the tray includes an intermediate plate connected to the side edges of the adjacent end walls and the side edges of the side walls and superimposed on the outer surface of the side walls in a folded state, and an intermediate plate on the end wall. A first crosspiece protruding inward from an edge, and a second crosspiece connected to the leading end edge of the first crosspiece and folded back to the lower surface side of the first crosspiece are provided. A first support plate bent inward is connected to the upper edge of the side wall, and a second support plate superimposed on the upper surface of the first support plate is provided to the upper edge of the intermediate plate. are connected. The first support plate and the second support plate are sandwiched between the first crosspiece and the second crosspiece.

In the tray of the present invention, the first support plate and the second support plate support the first support plate and the second support plate when a vertical force acts on the first support plate and the second support plate. be done.
Thereby, when the first crosspiece and the second crosspiece are grasped and pulled upward, the first crosspiece and the second crosspiece can be prevented from opening upward.
Further, when another tray or box is stacked on the tray of the present invention, the other tray or box can be stably supported by the first crosspiece and the second crosspiece.
Further, in the tray of the present invention, the intermediate plate is superimposed on the outer surface of the side wall, so that the side portion of the tray has a multi-layered structure, so that the strength of the tray against lateral force can be increased.

It is preferable that the first support plate and the second support plate of the tray are connected via a fold line, and the first support plate and the second support plate are folded along the fold line.
With this configuration, when the intermediate plate is folded and overlapped with the outer surface of the side wall when the tray is assembled, the first support plate and the second support plate are accurately folded, which facilitates assembly of the tray.

In the tray described above, an inner plate overlapping the inner surface of the side wall is continuously provided on the left and right edges of the second crosspiece, and the lower edge of the inner plate is in contact with the upper surface of the bottom plate. preferable.
In this configuration, the left and right edges of the second crosspiece can be supported by the inner plate.

In the tray of the present invention, the first support plate and the second support plate are supported by the first support plate and the second support plate, and the intermediate plate is superimposed on the outer surface of the side wall. Strength against force can be increased.

It is the perspective view which looked at the tray which concerns on embodiment of this invention from the back upper right. It is the figure which showed the blank sheet of the tray which concerns on embodiment of this invention. FIG. 5 is a partial perspective view showing a state in which the end walls and side walls are raised with respect to the bottom plate in the method of assembling the tray according to the embodiment of the present invention; FIG. 5 is a partial perspective view showing a state in which the intermediate plate is stacked on the side wall in the method of assembling the tray according to the embodiment of the present invention; FIG. 5 is a partial perspective view showing a state in which the second crosspiece is folded back with respect to the first crosspiece in the method of assembling the tray according to the embodiment of the present invention; FIG. 3 is a side view showing a state in which trays according to the embodiment of the present invention are stacked;

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 this embodiment, and do not limit the configuration or usage of the tray.

As shown in FIG. 1, the tray 1 of the present embodiment includes a bottom plate 10, front and rear end walls 20, 20 and left and right side walls 30, 30 raised from the bottom plate 10, and upper edges of the end wall 20. A continuous first crosspiece 40, a second crosspiece 50 folded back to the bottom side of the first crosspiece 40, and an intermediate plate 60 superimposed on the outer surface of the side wall 30 are provided.

As shown in FIG. 2, the tray 1 is formed by mountain-folding or valley-folding a blank sheet S obtained by cutting out a corrugated cardboard sheet. The blank sheet S shown in FIG. 2 is arranged so that the inner side can be seen.
The fold lines of the blank sheet S are ruled lines (pressed lines) formed by pressing the surface of the blank sheet S linearly. In addition, you may form an intermittent notch in a ruled line. By doing so, it becomes easier to fold the blank sheet S at the ruled line.
Alternatively, the folded line may be configured by intermittently forming half-cut cuts obtained by cutting only the surface of the sheet or cuts penetrating the sheet into a linear shape.

The bottom plate 10 is formed in a quadrangular shape. As shown in FIG. 1 , front and rear end walls 20 , 20 are connected to the front and rear edges of the bottom plate 10 via broken lines, respectively. Left and right side walls 30, 30 are connected to the left and right edges of the bottom plate 10 via broken lines, respectively.
As shown in FIG. 2, front and rear engagement holes 11, 11 are formed in the front and rear portions of the left and right edges of the bottom plate 10, respectively.

The front and rear end walls 20, 20 extend upward from the front and rear edges of the bottom plate 10, as shown in FIG. The front and rear end walls 20 , 20 are formed in the same rectangular shape (see FIG. 2 ) and are formed perpendicular to the bottom plate 10 .

The left and right side walls 30 , 30 extend upward from the left and right edges of the bottom plate 10 . The left and right side walls 30 , 30 are formed in the same substantially rectangular shape (see FIG. 2 ) and are formed perpendicular to the bottom plate 10 .

The tray 1 is provided with four intermediate plates 60 on the front, rear, left, and right. The intermediate plate 60 is connected to the end wall 20 and the side wall 30 adjacent to each other, and overlaps the outer surface of the side wall 30 in a folded state. The intermediate plate 60 is formed in a substantially rectangular shape in the state of the blank sheet S shown in FIG. The four intermediate plates 60 are arranged at the four corners of the blank sheet S. As shown in FIG.

The intermediate plate 60 is connected to the side edge portion of the end wall 20 via a broken line, and is connected to the side edge portion of the side wall 30 via a broken line.
In the state of the blank sheet S, on the intermediate plate 60, diagonally from the vertex of the corner formed by the side edge of the end wall 20 and the side edge of the side wall 30 (in the direction away from the corner of the bottom plate 10) An extending intermediate polygonal line L1 is formed. The intermediate polygonal line L1 is inclined at an angle of 45 degrees with respect to the side edge of the end wall 20 and the side edge of the side wall 30, respectively.
The intermediate plate 60 in the state of the blank sheet S is formed with a substantially triangular portion on the end wall 20 side and a substantially triangular portion on the side wall 30 side across the intermediate folding line L1.

When the end walls 20 and side walls 30 are raised from the blank sheet S as shown in FIG. Bend. At this time, the intermediate plate 60 is bent in a valley fold when viewed from the outside. The folded intermediate plate 60 has a substantially triangular shape.

In this embodiment, the polygonal line between the side wall 30 and the intermediate plate 60 and the intermediate polygonal line L1 are formed by parallel double polygonal lines (see FIG. 2). Thus, the fold line between the side wall 30 and the intermediate plate 60 and the intermediate fold line L1 are weakened.
As a result, when the end wall 20 and the side wall 30 are erected, the intermediate plate 60 is arranged such that the polygonal line between the side wall 30 and the intermediate plate 60 and the intermediate polygonal line L1 are the polygonal line between the end wall 20 and the intermediate plate 60. Bend earlier than
Therefore, when the end wall 20 and the side walls 30 are raised with respect to the bottom plate 10, the folded left and right intermediate plates 60, 60 protrude outward from the left and right edges of the end wall 20. As shown in FIG.

Further, as shown in FIG. 4 , the folded intermediate plate 60 is folded toward the side wall 30 and overlapped with the outer surface of the side wall 30 .
In the tray 1, as shown in FIG. 1, intermediate plates 60, 60 are superimposed on the front and rear portions of the outer surface of the side wall 30, respectively. That is, the front and rear portions of both sides of the tray 1 have a three-layer structure with the side walls 30 and the intermediate plate 60 .

The lower edge of the intermediate plate 60 on the front side is inclined upward rearward from the front end of the lower edge of the side wall 30 . The lower edge of the rear intermediate plate 60 is inclined upward forward from the rear end of the lower edge of the side wall 30 .

As shown in FIG. 4 , a first support plate 70 that protrudes inward from the side wall 30 is connected to the front-rear end of the upper edge of the side wall 30 . As shown in FIG. 2, a first protruding piece 31 is formed between the front and rear first support plates 70, 70 at the upper edge of the side wall 30. As shown in FIG.

As shown in FIG. 4 , a second support plate 80 that protrudes inward from the side wall 30 is connected to the upper edge of the intermediate plate 60 . The second support plate 80 is connected to the upper edge of the innermost portion of the intermediate plate 60 folded over the outer surface of the side wall 30 .

As shown in FIG. 3, the side edges of the first support plate 70 and the side edges of the second support plate 80 are connected via a polygonal line L2.
As shown in FIG. 4, when the intermediate plate 60 is folded over the outer surface of the side wall 30, the first support plate 70 and the second support plate 80 are folded along the folding line L2.
Then, in a state where the second support plate 80 is superimposed on the outer surface of the first support plate 70, the first support plate 70 is bent inward at right angles to the side walls 30, and the second support plate 80 is folded into an intermediate plate. Bend at right angles to 60 toward the inside.
As a result, the first support plate 70 and the second support plate 80 protrude toward the inner surface of the side wall 30 while the second support plate 80 is superimposed on the upper surface of the first support plate 70 .

A second projecting piece 61 projecting upward is connected to the upper edge of the outermost portion of the intermediate plate 60 folded over the outer surface of the side wall 30 .

As shown in FIG. 1, the front, rear, left, and right corners of the tray 1 have the same structure, and an intermediate plate 60, a first support plate 70, and a second support plate 80 are formed at each corner (see FIG. 1). 2).

As shown in FIG. 5, a first crosspiece 40 is connected to the upper edge of the front end wall 20 via a broken line. The first crosspiece 40 is formed in a belt shape along the upper edge of the end wall 20 . The first crosspiece 40 is bent at right angles to the end wall 20 and protrudes inward from the upper edge of the end wall 20 . The left and right ends of the first crosspiece 40 overlap the upper surfaces of the left and right second support plates 80 , 80 .

As shown in FIG. 4, the second crosspiece 50 is connected to the leading edge of the first crosspiece 40 via two parallel fold lines. The interval between the two folding lines is set to the thickness of two blank sheets S (see FIG. 2).
The second crosspiece 50 is formed in a belt shape along the edge of the first crosspiece 40 . An opening 90 is formed in the middle portion in the left-right direction of both fold lines between the first crosspiece 40 and the second crosspiece 50 .

As shown in FIG. 5, the second crosspiece 50 is folded back toward the lower surface side of the first crosspiece 40 along both folding lines. The tip edge of the second crosspiece 50 is in contact with the upper portion of the inner surface of the end wall 20 .
The protrusion on the tip edge of the second crosspiece 50 is inserted into the hole formed in the upper end of the end wall 20 , so that the second crosspiece 50 returns downward with respect to the first crosspiece 40 . prevent

A recessed portion is formed by the opening 90 at the folded portion of the first crosspiece 40 and the second crosspiece 50 . This recessed portion is a part where a hand is placed when holding the first crosspiece 40 and the second crosspiece 50 .
In addition, since the opening 90 is formed at the folded portion of the first crosspiece 40 and the second crosspiece 50 , the second crosspiece 50 can be easily bent with respect to the first crosspiece 40 .

Left and right ends of the second crosspiece 50 are overlapped on the lower surfaces of the left and right first support plates 70 , 70 . A first support plate 70 and a second support plate 80 are sandwiched between the left and right ends of the first crosspiece 40 and the left and right ends of the second crosspiece 50 .
The left and right ends of the first crosspiece 40 and the second crosspiece 50 are respectively supported by a first support plate 70 and a second support plate 80 that are vertically stacked.

As shown in FIG. 4 , left and right inner plates 52 , 52 are connected to the left and right edges of the second crosspiece 50 via broken lines, respectively. As shown in FIG. 5, when the second crosspiece 50 is folded back toward the lower surface of the first crosspiece 40, the inner plate 52 extends downward from the edge of the second crosspiece 50, and the inner plate 52 is superimposed on the inner surface of side wall 30 .

A lower edge of the inner plate 52 is in contact with the upper surface of the bottom plate 10 . A lower edge of the inner plate 52 is inserted into the engagement hole 11 of the bottom plate 10 . Thereby, the lower edge of the inner plate 52 is connected to the upper surface of the bottom plate 10 .

As shown in FIG. 1 , the rear end wall 20 is provided with a first crosspiece 40 and a second crosspiece 50 , similarly to the front end wall 20 . An inner plate 52 is connected to the portion.

Next, a method for assembling the tray 1 of this embodiment will be described.
Since the front and rear parts of the tray 1 of this embodiment have a symmetrical structure, the procedure for assembling the front part of the tray 1 will be described below, and the procedure for assembling the rear part will be omitted.

First, from the state of the blank sheet S shown in FIG. 2, as shown in FIG. At this time, the intermediate plate 60 is folded in half along the intermediate folding line L1.

Subsequently, as shown in FIG. 4, the folded intermediate plate 60 is overlaid on the outer surface of the side wall 30 . Thereby, the first support plate 70 and the second support plate 80 are folded, and the first support plate 70 and the second support plate 80 are accurately folded.

With the first support plate 70 and the second support plate 80 superimposed on each other, the first support plate 70 is bent inward with respect to the side wall 30 at a right angle, and the second support plate 80 is folded with respect to the intermediate plate 60. Bend inward at a right angle.

Subsequently, the first crosspiece 40 is bent inward with respect to the end wall 20 at a right angle, and the left and right inner plates 52, 52 are bent upward with respect to the second crosspiece 50. - 特許庁
As shown in FIG. 5, when the second board 50 is folded back against the first board 40, both the inner boards 52 and 52 move to the lower surface side of the first board 40 together with the second board 50, Both inner plates 52, 52 are overlapped on the inner surfaces of the left and right side walls 30, 30, respectively. Also, the lower edge of the inner plate 52 is inserted into the engaging hole 11 of the bottom plate 10 .

At the lower front corner of the inner plate 52, an inclined edge is formed that is inclined with respect to the front edge and the lower edge. As a result, when the inner plate 52 is inserted into the lower surface side of the first crosspiece 40, the lower front corner of the inner plate 52 can be prevented from being caught on the upper surface of the bottom plate 10.例文帳に追加

When the second crosspiece 50 is folded back with respect to the first crosspiece 40, the first support plate 70 connected to the side wall 30 and the second support plate 80 connected to the intermediate plate 60 are connected to the first crosspiece. It is sandwiched between the plate 40 and the second crosspiece 50. - 特許庁

In this manner, as shown in FIG. 1, the front and rear first crosspieces 40 and 40 and the front and rear second crosspieces 50 and 50 are formed at the front and rear ends of the upper opening so that the tray 1 complete the assembly of the

In the tray 1 as described above, as shown in FIG. 5, when an upward force acts on the first crosspiece 40 and the second crosspiece 50, the left and right ends of the second crosspiece 50 They are supported by a first support plate 70 and a second support plate 80, respectively.
Thereby, when the first crosspiece 40 and the second crosspiece 50 are grasped and pulled upward, the first crosspiece 40 and the second crosspiece 50 can be prevented from opening upward.

In the tray 1 of the present embodiment, when a downward force acts on the first crosspiece 40 and the second crosspiece 50, the left and right ends of the first crosspiece 40 move toward the first support plate 70 and the first support plate 70, respectively. It is supported by the second support plate 80 .
Further, in the tray 1 of the present embodiment, the left and right edges of the second crosspiece 50 are supported by the left and right inner plates 52, 52, respectively.
As a result, when other trays or boxes are stacked on the tray 1 of the present embodiment, the other trays or boxes can be stably supported by the first crosspiece 40 and the second crosspiece 50 .

In the tray 1 of this embodiment, the intermediate plate 60 is overlaid on the outer surface of the side wall 30 and the inner plate 52 is overlaid on the inner surface of the side wall 30 . Thus, since the side portion of the tray 1 has a multi-layer structure, the strength of the tray 1 against lateral force can be increased.

In the tray 1 of this embodiment, as shown in FIG. 3, the first support plate 70 and the second support plate 80 are connected via a broken line L2. In this configuration, when the intermediate plate 60 is folded and overlapped with the outer surface of the side wall 30 as shown in FIG.

When another tray or box is stacked on the tray 1 shown in FIG. can be sandwiched from the lateral direction. Therefore, other trays and boxes can be stably stacked on the tray 1 of this embodiment.

Also, as shown in FIG. 6, when the two trays 1, 1 are stacked, the first projecting piece 31 of the lower tray 1 and both second projecting pieces 61, 61 are positioned in front of and behind the upper tray 1. It is arranged between the intermediate plates 60, 60 and its movement in the front-rear direction is restricted. Thereby, it is possible to prevent the tray 1 on the upper side from shifting in the front-rear direction with respect to the tray 1 on the lower side.

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 the present embodiment, as shown in FIG. 3, the first support plate 70 and the second support plate 80 are connected via the polygonal line L2. 80 may be separated.

In the tray 1 of this embodiment, as shown in FIG. and a second crosspiece 50 may be provided.

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

1 Tray 10 Bottom Plate 11 Engagement Hole 20 End Wall 30 Side Wall 31 First Protruding Piece 40 First Crosspiece 50 Second Crosspiece 51 Protruding Portion 52 Inner Plate 60 Intermediate Plate 61 Second Protruding Piece 70 First Supporting Plate 80 Second Support plate 90 Opening S Blank sheet

Claims (3)

a bottom plate;
front and rear end walls raised at front and rear edges of the bottom plate;
Left and right side walls raised from left and right edges of the bottom plate;
an intermediate plate connected to the side edge portion of the end wall and the side edge portion of the side wall adjacent to each other and superimposed on the outer surface of the side wall in a folded state;
a first crosspiece protruding inward from the upper edge of the end wall;
a second crosspiece connected to the tip edge of the first crosspiece and folded back to the lower surface side of the first crosspiece;
A first support plate that is bent inward is connected to the upper edge of the side wall,
A second support plate overlaid on the upper surface of the first support plate is continuously provided on the upper edge of the intermediate plate,
A tray, wherein the first support plate and the second support plate are sandwiched between the first cross plate and the second cross plate. A tray according to claim 1, comprising:
The first support plate and the second support plate are connected via a broken line,
The tray, wherein the first support plate and the second support plate are folded along the fold line. A tray according to claim 1 or claim 2,
An inner plate overlapping the inner surface of the side wall is continuously provided on the left and right edges of the second crosspiece,
A tray, wherein a lower edge of the inner plate is in contact with an upper surface of the bottom plate.

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