JPH1159662A - Cardboard or thin ball tray - Google Patents

Abstract

(57) [Problem] To provide a cardboard that is lightweight, increases the vertical compressive strength of the side wall so that it can withstand a large number of stacked layers, and solves the problem of pollution at the time of disposal and an increase in manufacturing costs. And trays made of thin ball. SOLUTION: Four side walls 10, 10, 20, 20 and a bottom wall 3 are provided.
0, one opposing side wall 1
0, 10 are formed on a frame-shaped double wall, and a glued piece 1 is provided at each end.
4 are attached to the bottom wall 30 and the U-shaped insertion pieces 22 are continuously provided on both side ends of the other opposing side walls 20. Each of the two opposing side walls 1 is inserted into and adhered to the other side wall 21 while being inserted into the double wall and pasted, and pasted to the other side wall 21 with glue pieces 224 connected to the respective ends.
One or a plurality of U-shaped or corresponding folded pieces 40 having glued pieces 44, 45 connected at both ends are fitted into the double wall of the "0", and the glued pieces 44, 45 are attached. What is stuck on the inner surface of the double wall.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray made of cardboard or a thin ball which can store fish and shellfishes, fruits and vegetables, and the like.

[0002]

2. Description of the Related Art Conventionally, it has been difficult to stack the above trays in multiple stages because the vertical compressive strength of the side walls is weak. Therefore,
A pair of opposing side walls was formed in a frame-shaped double wall, and a hard foamed resin piece or a wood piece was inserted into the double wall to increase the vertical compressive strength. Pollution problems, the latter had the disadvantage of increasing weight and increasing production costs.

[0003]

SUMMARY OF THE INVENTION The present invention aims to increase the vertical compressive strength of the side wall, irrespective of its light weight, to be able to withstand a large number of stacked layers, and to reduce the pollution problem at the time of disposal and the production cost. An object of the present invention is to provide a tray made of cardboard or a thin ball which has been lifted.

[0004]

In order to solve the above-mentioned problems, the tray of the present invention has four side walls 10, 1 as shown in the drawing.
In the tray composed of 0, 20, 20 and the bottom wall 30,
One of the opposed side walls 10, 10 is formed as a frame-shaped double wall, and a glued piece 14 is continuously provided at each end and attached to the bottom wall 30, and each of the other opposed side walls 20, 20 is formed. The U-shaped insertion pieces 22 and 22 are continuously provided on both side ends, and the one side wall 10 is provided.
And affixed to the other side wall 21 with glue pieces 224 connected to the respective ends, and adhered to the inside of the double wall of each of the opposing side walls 10. , Glued pieces 4 on both ends
U-shape or a folded piece 40 corresponding thereto
One or a plurality of these are fitted, and the glued pieces 44, 45 are attached to the inner surface of the double wall.

[0005] In the present invention, the folded piece 40 which is fitted into the frame-shaped double wall of the side wall and has glue pieces 44 and 45 connected at both ends is a U-shaped one shown in FIG. There are trapezoidal shapes 40B, inverted trapezoidal shapes 40C, triangular shapes 40D, semicircular shapes 40E, and the like as equivalents. Further, as shown by the imaginary line in FIG. 3, the folded piece 40 can be reinforced by attaching to the other opposing side walls 20, 20. Furthermore,
The folded piece 40 includes a case where both the glued pieces 44 and 45 and the top piece 41 of the folded piece are bonded together, and a case where only the glued pieces 44 and 45 are bonded. Also in the case of the U-shaped insertion piece 22, the first piece 221 and the third piece 223 on both sides of the insertion piece 22 are provided.
And the first piece 221.
Alternatively, a case where the third piece 223 and the glued piece 224 are bonded to each other and a case where only the glued piece 224 is bonded are included.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is shown in FIGS. The tray of the present invention comprises a pair of opposing side walls 10, 10 and a pair of opposing side walls 2,
0, 20 and a bottom wall 30. Each side wall 10
Is an outer wall 11 connected to both ends of the bottom wall 30 via a folding line,
The outer wall 11, the top wall 12, and the inner wall 13 are composed of a top wall 12 connected to the inner wall 13 via a fold line, an inner wall 13 connected to the upper wall 12 via a fold line, and an adhesive piece 14 connected to the inner wall 13 via a fold line. Is bent into a U-shape to form a frame-shaped double wall. Each side wall 2
0 is a standing wall 21 connected to the end of the bottom wall 30 via a folding line.
And a first piece 221 connected to both ends thereof through a fold line, a second piece 222 connected to the two pieces via a fold line, a third piece 223 connected to the two pieces via a fold line, and a fold line to this. Inserting pieces 22 consisting of glued pieces 224 are provided at both ends.
The first piece 221, the second piece 222, and the third piece 223 are bent into a U-shape and fitted into the double wall of the side wall 10. Fragment 4
0 comprises a top piece 41 and side pieces 42 and 43;
Glued pieces 44 and 45 are connected to 2 and 43, respectively, and fitted into the double wall of the side wall 10. Also, the folded piece 40
Are glued pieces 44 and 45 as shown by phantom lines in FIG.
Can be adhered to the inner surface of the side wall 20 to reinforce it.

Accordingly, in the tray of the present invention, as shown in FIGS. 2 and 3, the side wall 20 is erected, and the insertion pieces 22 at both ends of the upright wall 21 are bent in a U-shape, and the glued piece 224 is attached to the upright wall 21. After that, the outer wall 11 of the side wall 10 is raised and the glued pieces 44, 45 of the folded piece 40, or the glued pieces 44, 45 and the first piece 221 of the inserted piece 22 are adhered to the outer wall 11, and the top wall is attached. 12, inner wall 1
3 is folded so that the insertion pieces 22 and 22 and the folding piece 40 are wound inside so as to fit inside. At this time, the top piece 41 of the folded piece 40 and the third piece 223 of the insertion piece 22 may be attached. Finally, if the glued pieces 14 of the side wall 10 are attached to the bottom wall 30, the tray is completed.

[0008]

According to the present invention, vertical columns can be formed at a constant pitch at each of the four corners and each side wall of the tray, so that the compressive strength in the vertical direction becomes extremely large.
The stacking capacity of the trays was significantly improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the internal structure of FIG.

FIG. 3 is a perspective view during the assembly of FIG. 1;

FIG. 4 is a development view of FIG. 1;

FIG. 5 is an enlarged perspective view showing one embodiment of a folded piece.

FIG. 6 is an enlarged perspective view showing another embodiment of the folded piece.

FIG. 7 is an enlarged perspective view showing another embodiment of the folded piece.

FIG. 8 is an enlarged perspective view showing another embodiment of the folded piece.

FIG. 9 is an enlarged perspective view showing another embodiment of the folded piece.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Opposite side wall 14 Glued piece of side wall 20 The other opposing side wall 21 Erect wall 22 Insertion piece of side wall 224 Glued piece of side wall 30 Bottom wall 40 Folded piece 42 Top of folded piece 44, 45 Glued of folded piece Piece

Claims (1)

[Claims] 1. A tray comprising four side walls and a bottom wall, one of the opposing side walls is formed as a frame-shaped double wall, and a glued piece is continuously provided at each end and is attached to the bottom wall. A U-shaped insertion piece is continuously provided on each side end of the other opposing side wall, and inserted into and adhered to the double wall of each of the one side walls,
A glued piece is continuously attached to each tip and attached to each of the other side walls,
In the double wall of each of the one opposing side walls, one or a plurality of U-shaped pieces having glued pieces connected at both ends, or corresponding folded pieces, are fitted to fit the glued pieces. A cardboard tray or a thin ball tray, which is attached to the inner surface of the double wall.