JPH055142Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a rectangular parallelepiped cardboard box.

[Conventional technology]

Conventionally, rectangular parallelepiped-shaped cardboard boxes as shown in FIGS. 7 and 9 have been used to store and transport plate-shaped products such as ceiling panels. The cardboard box 1 shown in FIG. 7 is called a wraparound type cardboard box, and is constructed by assembling one panel 2 shown in FIG. 8. In the figure, 3 is a joining piece for assembling the panel 2 into a rectangular tube shape, and 4 and 5 are lids for closing both ends of the cardboard box. The cardboard box 11 shown in FIG. 9 is called a Bliss box type cardboard box, and is similar to the one shown in FIG.
12 body ranks and 2 end panels 13
It is constructed by assembling. In the figure, 14 is a joint piece for joining the body blank 12 and end panel 13, and 15 and 16 are cardboard boxes 11.
This is a top lid for closing the top surface of the .

In either case, a large number of plate-shaped products with approximately the same area as the bottom wall are usually stacked and stored.

[Problem that the invention attempts to solve]

However, the wraparound type cardboard box 1 and the bliss box type cardboard box 11 having such a structure are
Both had the problem that it was difficult to take out the product inside. That is, in the former case, the side lids 4 and 5 are opened to take out the plate-shaped product laterally, but since the lids 4 and 5 are double-layered, it is difficult to take out the product, and brittle materials may be damaged. be. In addition, in the latter case, the upper lid 15,1
6 and take out the plate-shaped product upward, but since the product is the same size as the cross-sectional area of the cardboard box, it is difficult to take out, and like the former, if it is made of brittle material, it may break. In order to easily take out the plate-shaped product, in the former case, it is necessary to peel off the joint piece 3 glued on the side surface and unpack it, and in the latter case, it is necessary to open the top cover 16 and peel off the end panel 13 and unpack it. However, since both are glued together over a large area, they are very strong and require time and effort to unpack.

Furthermore, after taking out the product, these cardboard boxes had to be dismantled and disposed of after being unpacked due to their three-dimensional shape, which required a lot of effort and time to clean up afterwards. Ta.

The present invention was developed in view of these problems, and allows for easy unpacking, easy removal of the plate-shaped products stored inside, and easy cleanup of the cardboard box after product removal. The aim is to provide a cardboard box that makes it possible to

[Means for solving problems]

In order to solve this problem, the present invention has a lower lid having a bottom wall and a pair of opposing side walls and a connecting piece at both ends, and an upper lid having a top wall and a pair of opposing end walls in the shape of a rectangular parallelepiped. A cardboard box is constructed by combining the above-mentioned joint pieces with the end wall of the top cover, and furthermore, providing an opening line across the top wall of the top cover, and forming a line at the intersection of the side wall and the end wall. It is characterized by providing an opening line on the ridgeline of the eggplant.

[Effect]

In a cardboard box with the above configuration, when opened,
By pulling a portion of the top wall near the opening line upward, the top wall can be easily torn along the opening line, and the torn top wall and the end wall connected to it can be integrated. 2 By tilting the cardboard box laterally, each ridgeline between the end wall and the side wall can be torn apart. As a result, the top wall, end wall, and side wall of the cardboard box can be opened wide and the product inside can be easily taken out, and the cardboard box can be folded flat when cleaning up afterwards.

〔Example〕

Embodiments of the present invention shown in the drawings will be described below.
1 and 2 are perspective views showing a cardboard box according to an embodiment of the present invention. FIG. 1 shows the state before the product is stored, and FIG. 2 shows the state after the product is stored and sealed. The cardboard box, designated as a whole by the reference numeral 20, has a top lid 21 having a top wall 22 and a pair of opposing end walls 23, a bottom wall 25 and a pair of opposing side walls 26, and further provided with joining pieces 27 at both ends. The lower lid 24 is assembled with the upper lid 21, and the joint piece 27 of the lower lid 24 is connected to the end wall 23 of the upper lid 21.
It has a structure in which the opening is closed by bonding it to the outer surface of the The top wall 22 of the top lid 21 has an opening line 29, such as a perforation, that can be easily opened, extending across the top wall 22 at the center, and finger holes on both sides of the opening line 29, through which a finger can be passed. 30 is formed. On the other hand, on the lower lid 24, on the boundary line between the side wall 26 and the joint piece 27,
A tear line 31, such as a perforation, that can be easily torn is provided. This unsealing line 31 is the second
As shown in the figure, when the cardboard box is assembled, the four ridge lines formed by the intersections of the side walls 26 and the end walls 23 are located. The upper lid 21 and the lower lid 24 have an upper panel 21A and an under panel 2 shown in FIG. 5, respectively.
It is constructed by folding 4A.

Next, the packing operation and unsealing operation using the cardboard box configured as described above will be explained. The upper panel 21A and the lower panel 24A shown in FIG. 5 are bent respectively to prepare the upper lid 21 and lower lid 24 shown in FIG. As shown, the upper lid 21 is placed on top of it, and the joint piece 27 of the lower lid 24 is attached to the end wall 23 of the upper lid 21.
It is sealed by gluing it to the outside surface of the container.

To open the sealed cardboard box 20 as shown in FIG. 2, insert your finger into the finger hole 30 in the top wall 22 and pull in the direction indicated by arrow A in FIG. Then, as shown in FIG. 3, the top wall 22 is torn along the opening line 29 and unsealed, and the torn top wall 22 is further pulled in the direction shown by arrow B in FIG. Since the opening line 31 is provided on the ridgeline, the package is torn along this line. after that,
By folding down the end wall 23 and side wall 26, the top wall 22, end wall 23, and side wall 26 are opened wide so that they are on the same plane as the bottom wall 25, as shown in FIG. is exposed. In this way, the plate-shaped product 32 can be easily taken out. Also,
After taking out the product, it can be easily cleaned up by appropriately folding the side walls, end walls, etc.

In the above embodiment, the finger holes 30 are provided on both sides of the opening line 29, but the finger holes 30 do not necessarily have to be in this position, and may be on the opening line 29, or on the side wall 26. It may be located in a portion adjacent to the opening line 29.

Further, in the above embodiment, the upper cover 21 and the lower cover 24 are constructed as completely separate members before assembly, but instead of this, as shown in FIG. 6, they may be partially connected. good.

[Effect of idea]

As explained above, the cardboard box of the present invention is characterized in that the top wall is provided with an opening line that crosses the top wall, and that an opening line is also provided on the ridge line formed by the intersection of the side wall and the end wall. Therefore, by tearing this opening line, the top wall, end wall, and side wall can be easily opened wide, and the cardboard box can be opened and the product can be taken out in a short time and with little effort. After taking out the product, the cardboard box is in a flat state, so it has the advantage that it can be easily cleaned up.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a cardboard box according to an embodiment of the present invention before it is sealed, Figure 2 is a perspective view of the cardboard box in a sealed state, and Figure 3 is a perspective view of the cardboard box being opened. FIG. 4 is a perspective view showing the cardboard box in an open state, FIG. 5 is a plan view showing the parts constituting the cardboard box developed, and FIG. FIG. 7 is a perspective view showing a conventional cardboard box, and FIG. 8 is a plan view showing the parts constituting the cardboard box developed.
FIG. 9 is a perspective view showing another example of a conventional cardboard box, and FIG. 10 is a plan view showing the cardboard box developed. 20...Cardboard box, 21...Top lid, 21A
... Upper panel, 22 ... Top wall, 23 ... End wall, 24 ... Lower cover, 24A ... Under panel,
25...bottom wall, 26...side wall, 27...joint piece,
29...Opening line, 30...Finger hole, 31...Opening line, 32...Plate-shaped product.

Claims (1)

[Claims for Utility Model Registration] (1) Consisting of a lower lid having a bottom wall and a pair of opposing side walls, and an upper lid having a top wall and a pair of opposing end walls, the lower lid has joining pieces at both ends thereof. The cardboard box is assembled into a rectangular parallelepiped shape by joining the joining piece to the end wall of the top lid, and the top wall of the top lid is provided with an opening line that crosses the top wall, and further has a side wall and an end wall. A cardboard box characterized by having an opening line on the ridge line where the walls intersect. (2) The cardboard box according to claim 1 of the utility model registration claim, characterized in that finger holes are provided on both sides of the opening line of the top cover.