JPH0223530Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This proposal relates to a cardboard box for packaging.

"Conventional technology" Conventionally, cardboard boxes used exclusively for packaging heavy items such as bolts and nuts have a high load strength.
Since nuts and the like are manufactured by automatic machines and then automatically packaged at the shipping side, if there is no handhold in the end plate and a handhole is drilled, the contents will leak and the stacking strength will decrease. Another problem is that when handhold holes are formed in the end plates on the short sides of the rectangular bottom plate and the end plates on both sides are lifted by placing both hands on the handholes, the end plates on both sides tend to fall inward, resulting in a reduction in lifting strength.

``Problems that the invention seeks to solve'' This invention is a cardboard box with high pressure strength, exclusively for packaging heavy small items (bolts, nuts, etc.), which is easy to manufacture using an automatic machine and has a hand hole. This invention relates to a corrugated cardboard container with end plates that have great lifting strength.

``Means for solving the problem'' This idea consists of installing opposing side plates on both sides of the long sides of the rectangular bottom plate, connecting cover plates on both sides of the both sides, and gluing them to both edges of the bottom plate and the opposing side plates. The end plate is formed by providing a piece, surrounded on three sides by the bottom plate and the opposing side plate, and having the adhesive piece adhered to the outer surface, and an inner and outer plate in which the end plate is folded in double, A through hole for a handhold is drilled in the outer panel, the through hole is closed by an inner panel, a glued piece is provided on both sides of the outer panel of the same end board, and a glued piece is attached to the upper edge of the outer panel. It is composed of a cardboard box provided with a presser piece to be supported.

``Function'' Therefore, when the lid plate is opened and heavy objects such as nails, bolts, nuts, etc. are stored in a cardboard box surrounded by the bottom plate, the opposite side plate, and the end plate, and the lid plate is closed and packed, the heavy items are stored. It is blocked by the inner panel and does not leak through the holes drilled in the outer panel. In manual operations such as transportation and transfer, the handle is handled by placing both hands on the handhold hole in the end plate and lifting it. During this lifting, the inner and outer plates 1 of the end plate 14
When force is applied in the direction in which the plates 2 and 13 fall inward, the presser plate 15 presses against the upper end of the inner plate 13 and the glued pieces 16, 16.
Since it is supported by the upper end of the end plate 14, it can be lifted up without falling inward. Matatsuma board 14 is adhesive piece 8
The outer surface is reinforced so that it does not fall outward.

``Embodiment'' A rectangular bottom plate 1 is formed of a corrugated cardboard sheet, and opposing side plates 3, 3 are successively arranged on both long sides of the rectangular bottom plate 1 with concave pressed ruled lines 2 as boundaries. Lid plates 5, 5 are further provided on both sides of the side plates 3, 3 with concave pressure ruled lines 4 as boundaries, and concave pressure ruled lines 6, 6 are provided on both edges of the bottom plate 1 and opposing side plates 3, 3. Adhesive pieces 7, 8, and 8 are arranged in series as follows. Such a sheet is immediately folded after the concave crease lines are formed by an automatic folding machine. In addition, a rectangular unfolding plate with a through hole 9 drilled by a punching machine is inserted into an automatic folding machine, and a concave pressed ruled line 1 is placed in the center of the unfolding plate.
0 is formed and the end plate 14 is formed by the inner and outer plates 12 and 13 which are folded twice and dotted with glue 11. Standing upright on both edges, glue pieces 7, 8,
8 is adhered to the outer surface of the outer panel 12 to automatically form a cardboard box, small heavy items such as nails are automatically accommodated inside, and the lid plates 5 are closed and packed. Although the concave depression lines 10 at the boundaries between the inner and outer panels 12 and 13 are shown in the horizontal direction in FIG. 2, they may be in the vertical direction.
A presser piece 15 is provided on the upper edge of the outer plate 12, adhesive pieces 16, 16 are provided on both sides, and the lower surfaces of both ends of the presser piece 15 are supported by the adhesive pieces 16, 16.

“Effect” Since this project is configured as described above, the clue hole 9,
9 to lift a heavy cardboard box, there is no risk of the end plates 14, 14 falling inward, improving the lifting strength, making it possible not only to handle the cardboard box safely and easily, but also to accommodate heavy small items. It prevents moisture from leaking, improves the compressive strength, and can be applied to continuous production using automatic machines.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the proposed cardboard box, Figure 2
The figure is a perspective view of the separated state, and FIG. 3 is a longitudinal sectional view taken along the line A--A of FIG. 1. 1... Rectangular bottom plate, 3... Opposing side plate, 5... Lid plate, 7, 8... Adhesive piece, 14... End plate, 12...
Outer plate, 13... Inner plate, 9... Hole for handhold, 15
...pressing piece, 16...gluing piece.

Claims (1)

[Scope of utility model registration request] Opposing side plates are installed on both sides of the long side of the rectangular bottom plate,
Lid plates are provided on both sides of the both side plates, adhesive pieces are provided on both edges of the bottom plate and the opposing side plate, the area is surrounded on three sides by the bottom plate and the opposing side plate, and the adhesive pieces are adhered to the outer surface. The gable board is formed by the inner and outer panels of the gable board, which are folded in double.A through hole for a handhold is bored in the outer board, and the through hole is closed by the inner board. A corrugated box comprising glued pieces on both sides of the outer plate and a presser piece supported on the upper edge of the glued piece on the upper edge of the outer plate.